CN107820401B - Wrist strap and intelligent bracelet - Google Patents

Abstract

The utility model provides a wrist strap (20), is connected with dial plate (10) of intelligent bracelet, establishes battery module (30) in wrist strap (20), and battery module (30) are dial plate (10) power supply, and the one end of wrist strap (20) is connected to dial plate (10), and battery module (30) set up with dial plate (10) relatively. Set up battery pack in wrist strap (20) for the dial plate (10) of intelligence bracelet satisfy the demand of size miniaturization.

Description

Wrist strap and intelligent bracelet

Technical Field

The application relates to the technical field of wearable intelligent products, in particular to a wrist strap structure of an intelligent bracelet.

Background

With the development and wider application of wearable smart products, the demands of users are increasing, for example: the requirement of miniaturization and portability, the requirement of large screen and the like. In current intelligent bracelet, the battery is integrated in the dial plate, leads to the dial plate volume great, can't satisfy the demand that the size is miniaturized portable.

How to design a new design that can satisfy the miniaturization of the dial size is a subject of continuous research in the industry.

Disclosure of Invention

The technical problem that this application embodiment will solve provides a wrist strap, uses in intelligent bracelet, sets up battery pack in the wrist strap for the dial plate of intelligent bracelet satisfies the demand that the size is miniaturized.

On the one hand, this application provides a wrist strap, is connected with the dial plate of intelligent bracelet, establish battery module in the wrist strap, battery module does the dial plate power supply, the one end of wrist strap is connected to the dial plate, battery module with the dial plate sets up relatively.

On the other hand, this application still provides an intelligent bracelet, include the dial plate and as the wrist strap, the wrist strap is connected to the dial plate.

This application is through placing the wrist strap in with battery module in, and battery module sets up with the dial plate relatively, and the function of the wrist strap that not only promotes is not only used for wearing to the human body, more has the function of power supply, and makes the dial plate of intelligent bracelet satisfy the demand that the size is miniaturized.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of an intelligent bracelet according to an embodiment of the present application.

Fig. 2 is an exploded view of a dial plate of the smart bracelet according to an embodiment of the present application.

Fig. 3 is an exploded schematic view of a frame assembly in a dial of a smart band according to an embodiment of the present application.

Fig. 4 is a schematic diagram of the left frame, the right frame and the telescopic assembly in the frame assembly exploded based on fig. 3.

Fig. 5 is a schematic view of a left frame in a frame assembly according to an embodiment of the present disclosure.

Fig. 6 is a schematic view of a right frame of a frame assembly provided in one embodiment of the present application.

FIG. 7 is a schematic view of a telescoping assembly in a frame assembly provided in accordance with an embodiment of the present application.

FIG. 8 is a schematic view of one of the links in the lever assembly of FIG. 7.

FIG. 9 is an assembled view of the telescoping assembly mounted to the left and right frames with the telescoping assembly in a collapsed state according to one embodiment of the subject application.

Fig. 10 is a schematic view in another direction of fig. 9.

FIG. 11 is an assembled view of a telescoping assembly mounted to a left frame and a right frame with the telescoping assembly in a deployed state according to one embodiment of the subject application.

Fig. 12 is a schematic view of fig. 11 in another direction.

Fig. 13 is a schematic view of a first connecting piece in a frame assembly according to an embodiment of the present disclosure.

Fig. 14 is a schematic view of the first connecting tab of fig. 13 attached to the telescoping assembly and extending the frame assembly from within the frame assembly.

FIG. 15 is a schematic view of a bracket in a frame assembly provided in accordance with an embodiment of the present application.

Fig. 16 is a schematic view of the stent of fig. 15 in another orientation.

Fig. 17 is a schematic view of the assembled structure of the stand and the left and right frames shown in fig. 15.

Fig. 18 is another schematic view of the assembly structure of the bracket and the left and right frames shown in fig. 17.

FIG. 19 is a schematic view of a joystick in a frame assembly provided in accordance with one embodiment of the present application.

Fig. 20 is a schematic view of the lever of fig. 19 engaged with the first link of fig. 14 with the frame assembly in a retracted state.

Fig. 21 is a schematic view showing a positional relationship between the first link plate and the operating lever in the unfolded state of the frame structure shown in fig. 20.

Fig. 22 is an exploded view of the left frame, the right frame, the left base plate, the right base plate, and the support plate of the frame assembly according to one embodiment of the present disclosure.

Fig. 23 is an assembled view of the frame assembly of fig. 22, wherein the frame assembly is in a collapsed condition.

Fig. 24 is a schematic view of the frame assembly of fig. 23 in an expanded state.

FIG. 25 is an exploded perspective view of the platen assembly and screen assembly and the right frame of the frame assembly according to one embodiment of the present application.

FIG. 26 is an exploded perspective view of a spool assembly provided in accordance with an embodiment of the present application.

Fig. 27 is a perspective view of a limiting member of a reel assembly according to an embodiment of the present disclosure.

Fig. 28 is a perspective view of a screw engaged with a limiting member in a reel assembly according to an embodiment of the present disclosure.

Fig. 29 is a perspective view of a connection head of a reel assembly according to an embodiment of the present application.

FIG. 30 is a perspective view of a securing member of a reel assembly according to one embodiment of the present application.

FIG. 31 is a cross-sectional view of the spool assembly assembled to the right frame according to one embodiment of the present application.

FIG. 32 is a schematic view of a left support frame of a support assembly according to an embodiment of the present disclosure.

FIG. 33 is a schematic view of a right support frame of the support assembly according to one embodiment of the present application.

FIG. 34 is a schematic view of a support assembly provided in accordance with an embodiment of the present application in a collapsed state.

Figure 35 is a schematic view of the support assembly shown in figure 34 in an expanded state.

Fig. 36 is an exploded view of the left support frame of the support assembly, the tray and the circuit board according to an embodiment of the present disclosure.

Fig. 37 is a cross-sectional view of a dial provided in one embodiment of the present application.

FIG. 38 is a schematic view of a support assembly according to another embodiment of the present application in a retracted state.

Fig. 39 is an exploded view of the support assembly of fig. 38, wherein the left and right support frames are exploded from the frame body.

FIG. 40 is a schematic view of the support assembly shown in FIG. 38 in an expanded state.

Fig. 41 is an enlarged partial cross-sectional view of the support assembly shown in fig. 38, showing primarily the cross-sectional shape of the racks of the left and right support brackets.

Fig. 42 is a schematic structural view of a triggering device provided in an embodiment of the present application in a dial, wherein the dial is in a retracted state.

FIG. 43 is a schematic view of the electrical connection structure between the resilient plate and the rod assembly of the triggering device and the circuit board in the retracted state shown in FIG. 42.

Fig. 44 is a schematic structural view of a triggering device provided in an embodiment of the present application in a dial, wherein the dial is in an expanded state.

FIG. 45 is a schematic view of the spring and rod assembly of the triggering device and the circuit board electrically connected to each other in the unfolded state shown in FIG. 44.

Fig. 46 is a schematic circuit architecture diagram of a triggering device according to an embodiment of the present application.

Fig. 47 is a partial structural view of a dial provided in one embodiment of the present application, mainly showing relevant features of the dial FPC protruding outside the dial.

Fig. 48 is a schematic view of the FPC shown in fig. 47 and a structure thereon, and the connection of the dial FPC to a circuit board in the dial.

Fig. 49 is a schematic view in the other direction of fig. 48, and mainly shows the structure of the other surface of the dial FPC.

Fig. 50 is a schematic view illustrating a wristband of a smart bracelet according to an embodiment of the present application being separated from a dial.

FIG. 51 is an exploded perspective view of one direction of a wristband according to an embodiment of the present application.

FIG. 52 is an exploded view of another orientation of a wristband according to an embodiment of the present application.

Fig. 53 is an exploded view of a support sheet of a wrist band and a battery module according to an embodiment of the present disclosure.

Fig. 54 is a schematic view illustrating a support sheet FPC of a wrist band according to an embodiment of the present invention being combined with the support sheet and a bottom frame.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Referring to fig. 1, the present application relates to a smart bracelet, which includes a dial 10 and a wristband 20. The wrist band 20 is provided with a battery module 30 therein. In one embodiment, the watch face 10 is opposite to the battery module 30 (which are respectively located on the back side and the palm side, where the relative arrangement is not limited to just right but may be staggered or partially opposite to each other), the battery module 30 is fixed on the wrist band 20, and one end of the wrist band 20 is connected to the watch face 10, so that the smart band is substantially C-shaped or U-shaped. As shown in fig. 1, the wristband 20 is further provided with a switch button 234, an expansion button 232, a home button 231 and a sound hole 235, and the present application provides more electronic devices (such as the above buttons) on the wristband 20, which is more beneficial to the versatility of the wristband 20 and also frees more space for the dial 10.

Referring to fig. 2, the watch face 10 includes a frame assembly 12, a support assembly 14, a screen assembly 16, and a reel assembly 18. The frame assembly 12 has a receiving space 121 therein, and the frame assembly 12 includes a frame top end 122 and a frame bottom end 123. The support assembly 14 is mounted to the frame top end 122 of the frame assembly 12, the support assembly 14 being adapted to support the screen assembly 16. The spool assembly 18 is disposed in the receiving space 121 of the frame assembly 12, and the spool assembly 18 is rotatably connected to the frame assembly 12 for winding the partial screen assembly 16. This application drives the change of the size of supporting component 14 and screen subassembly 16 through the flexible of frame subassembly 12 for the dial plate 10 size of intelligent bracelet obtains the extension, and display interface can stretch out and draw back. The present frame assembly 12 may also be used in other portable electronic devices, such as cell phones, for supporting a screen assembly.

The screen assembly 16 includes a flexible display screen 162 and a flexible touch screen 164, both of which are stacked and made of flexible material that can be rolled.

Referring to fig. 3 and 4, the frame assembly 12 includes a left frame 124, a right frame 126, and a telescoping assembly 125. Left frame 124 and right frame 126 set up relatively and form between the two and accomodate space 121, and flexible subassembly 125 is located accomodate space 121, and telescopically connects between left frame 124 and right frame 126, realizes the change of distance between left frame 124 and right frame 126 through flexible subassembly 125.

Referring to fig. 4 and 5, the left frame 124 includes a first bottom wall 1241, a pair of first side walls 1242 formed at opposite sides of the first bottom wall 1241, and a first connecting wall 1243 connected between the first bottom wall 1241 and the pair of first side walls 1242. The first bottom wall 1241 is provided with a first screw hole 1244 and a longitudinal first limit groove 1245. The first bottom wall 1241 is formed with two corners near the first connecting wall 1243 and the pair of first side walls 1242, which are the first corner and the second corner, respectively. The first screw hole 1244 is located at the first corner. The first limiting groove 1245 extends from the second corner along the extending direction of the first connecting wall 1243. The first screw hole 1244 and the first limit groove 1245 are used to mount the telescopic assembly 125. One of the first side walls 1242 is provided with two first slots 1246, and the two first slots 1246 form openings at end faces of the first side walls 1242 away from the first connecting wall 1243. Further, the two first slots 1246 are parallel to each other.

Referring to fig. 4 and 6, the right frame 126 has substantially the same structure as the left frame 124, and the right frame 126 includes a second bottom wall 1261, a pair of second side walls 1262 formed at two opposite sides of the second bottom wall 1261, and a second connecting wall 1263 connected between the second bottom wall 1261 and the pair of second side walls 1262. The second bottom wall 1261 is provided with a second screw hole 1264 at two corners and a second elongated limiting groove 1265. The second stopper groove 1265 extends along the extending direction of the second connecting wall 1263. A second screw hole 1264 and a second retaining groove 1265 are provided for mounting the telescoping assembly 125. One of the second side walls 1262 is provided with two second slots 1266, said two second slots 1266 forming openings at the end of said second side wall 1262 remote from the second connecting wall 1263. Further, the two second slots 1266 are parallel to each other. The right frame 126 is different from the left frame 124 in that a pair of second side walls 1262 of the right frame 126 are provided with a right frame notch 1267, respectively, and the right frame notch 1267 is provided on an end surface of the second side wall 1262 away from the second bottom wall 1261. Further, two right frame openings 1267 respectively formed in the pair of second side walls 1262 are disposed opposite to each other and adjacent to the second connecting wall 1263. The two right frame cutouts 1267 are used to position the support assembly 14.

Left frame 124 is disposed opposite right frame 126, and first bottom wall 1241 and second bottom wall 1261 are coplanar. The pair of first side walls 1242 respectively abut the pair of second side walls 1262, and when the left frame 124 and the right frame 126 are close to each other, the pair of first side walls 1242 are respectively located inside the pair of second side walls 1262, as shown in fig. 3, and at this time, the two first slots 1246 and the two second slots 1266 are respectively overlapped. The first slot 1246 and the second slot 1266 are used for attachment elements to extend from the interior of the frame assembly 12 to the exterior of the frame assembly 12 to mate with features of the wristband 20 such as: as shown in fig. 38 and 47, at the two first open grooves 1246 and the two second open grooves 1266, the dial FPC11 and the first connection tab 127 respectively protrude from the inside of the frame member 12 to the outside of the frame member 12. Specifically, the dial FPC11 protrudes from the first slot 1246 and the second slot 1266 located above, and the first connection piece 127 protrudes from the first slot 1246 and the second slot 1266 located below. Thereby, the extending paths of the dial FPC11 and the first connection piece 127 are spaced from each other, and the two are prevented from interfering with each other. Of course, the number of the first slots 1246 and the number of the second slots 1266 may be one, and the dial FPC11 and the first connection tab 127 penetrate out of the frame assembly 12 from the same slot. The first and second limiting grooves 1245 and 1265 are parallel to each other, and the extending direction of the first and second limiting grooves 1245 and 1265 is perpendicular to the direction of the relative movement between the left and right frames 124 and 126.

In one embodiment of the present application, the telescopic assembly 125 is a link structure formed by a plurality of links hinged to each other; in other embodiments, retraction assembly 125 may also be of a telescoping configuration, such as: similar to the telescopic structure of a draw-bar box.

Referring to fig. 7 and 8, as used herein, telescoping assembly 125 includes a rod assembly 1252 and a resilient member 1254, rod assembly 1252 including at least two links hinged therebetween. The resilient member 1254 may be a coil spring or a spring, the resilient member 1254 resiliently couples at least two links of the rod assembly 1252, the rod assembly 1252 is in an extended state when the resilient member 1254 is in an extended state, and the resilient member 1254 is in a resiliently compressed state when the rod assembly 1252 is in a contracted state.

The lever assembly 1252 includes first and second fixed ends P1 and P2 fixed to the left and right frames 124 and 126, respectively, and first and second moving ends P3 and P4 slidably connected to the left and right frames 124 and 126, respectively. Referring to fig. 9, 10, 11 and 12, the first fixing end P1 is fixed to the first screw hole 1244, the second fixing end P2 is fixed to the second screw hole 1264, the first moving end P3 is mounted to the first limiting groove 1245, and the second moving end P4 is mounted to the second limiting groove 1265. During the extension or contraction of the rod assembly 1252, the first movable end P3 moves in the first limiting groove 1245, and the second movable end P4 moves in the second limiting groove 1265, so as to drive the relative movement between the left frame 124 and the right frame 126.

That is, in the above embodiment, the two ends of the lever assembly 1252 are respectively provided with two ends, and the first fixed end P1 and the second fixed end P2 move together with the left frame 124 and the right frame 126 in the telescopic direction, and they are immovable with respect to the left frame 124 and the right frame 126; the first and second moving ends P3 and P4 move relative to the left and right frames 124 and 126 while moving along with the left and right frames 124 and 126 because, in the process of telescoping perpendicular to the telescoping direction, the rod assembly changes the distance between the first moving end P3 and the first fixed end P1 and the distance between the second moving end P4 and the second fixed end P2.

In other embodiments, only one end of the rod assembly 1252 may be provided at both ends, for example, the rod assembly 1252 is hinged by two connecting rods to form a V-shape, so that during the extension and retraction of the rod assembly 1252, the moving track between the ends of the rod assembly 1252 and the left and right frames 124 and 126 is in an arc shape, so as to ensure that the extension and retraction of the rod assembly 1252 changes the distance between the left and right frames 124 and 126.

In one embodiment, the rod assembly 1252 is formed from two sets of X-shaped connecting rod assemblies connected in series. Of course, in other embodiments, the rod assembly 1252 may include only one set of X-shaped connecting rod assemblies, or three or more sets of connecting rod assemblies, and the selection of the specific number of connecting rod assemblies may be determined according to the size range of the dial 10 to be expanded.

The following description is directed to the telescopic assembly 125 formed by two sets of X-shaped link assemblies.

Referring to fig. 7 to 12, the lever assembly 1252 includes a first link R1, a second link R2, a third link R3 and a fourth link R4. The four connecting rods are rod-shaped structures with the same length. The middle part of the first link R1 and the middle part of the third link R3 are hinged to form an X-shaped structure. The middle part of the second link R2 and the middle part of the fourth link R4 are hinged to form an X-shaped structure. One end of the first link R1 is hinged to one end of the second link R2. The other end of the first link R1 is provided with the second moving end P4, and the other end of the second link R2 is provided with the first moving end P3. That is, the free ends of the first link R1 and the second link R2 (the ends of the first link R1 and the second link R2 away from the hinged ends thereof) are the second moving end P4 and the first moving end P3, respectively, the second moving end P4 passes through the second stopper groove 1265 of the right frame 126 to be slidably connected with the right frame 126, and the first moving end P3 passes through the first stopper groove 1245 of the left frame 124 to be slidably connected with the left frame 124. One end of the third link R3 is hinged with one end of the fourth link R4. The other end of the third link R3 is disposed at the second fixed end P2. The other end of the fourth link R4 is disposed at the first fixed end P1. That is, free ends of the third link R3 and the fourth link R4 (ends of the third link R3 and the fourth link R4 away from their hinged ends) are a second fixed end P2 and a first fixed end P1, respectively, the first fixed end P1 is fixed to the first screw hole 1244 of the left frame 124 by screws, and the second fixed end P2 is fixed to the second screw hole 1264 of the right frame 126 by screws.

The elastic element 1254 is a coil spring, the elastic element 1254 is sleeved at the hinge joint of the first link R1 and the second link R2, two ends of the elastic element 1254 are respectively fixed to the first link R1 and the second link R2, the first link R1 and the second link R2 are switched between an open state and a closed state along with the extension and contraction of the lever assembly 1252, and in the process, the elastic element 1254 generates elastic deformation. Specifically, referring to fig. 7, 9 and 11, the first link R1 is provided with a first link catch groove 1255, the first link catch groove 1255 is located between the hinge of the first link R1 and the second link R2 and the middle portion of the first link R1, the first link catch groove 1255 is close to the middle portion of the first link R1, and one end of the elastic member 1254 is fixed in the first link catch groove 1255. The second link R2 includes a second link cam 1256 protrudingly provided on a surface of the second link R2, an inner groove 1257 is provided between the second link cam 1256 and a surface of the second link R2, and the other end of the elastic member 1254 is fixed in the inner groove 1257.

Further, referring to fig. 7 and 8, a connecting rod step 1258 is disposed on a surface of the first connecting rod R1, which is attached to the third connecting rod R3, for limiting the rod assembly 1252 during the extension and retraction process. The link step 1258 may be protrudingly provided on a surface of the first link R1 or a surface of the third link R3, and the link step 1258 is used to achieve a limit between the first link R1 and the third link R3 during extension and contraction. When the elastic element 1254 is in an elastically compressed state, the lever assembly 1252 is in a contracted state, at which time the third link R3 abuts against the link step 1258 of the first link R1, restricting the first link R1 from continuing to move relative to the third link R3. Similarly, the surface of the fourth link R4, which abuts against the second link R2, is provided with a link step 1258, and when the elastic element 1254 is in an elastically compressed state, the rod assembly 1252 is in a contracted state, and at this time, the second link R2 abuts against the link step 1258 of the fourth link R4.

When the rod assembly 1252 is in the retracted state, as shown in fig. 9 and 10, the first movable end P3 is located at an end of the first retaining groove 1245 adjacent the first side wall 1242, the second movable end P4 is located at an end of the second retaining groove 1265 adjacent the second side wall 1262, and the resilient element 1254 is in a resiliently compressed state. When the rod assembly 1252 is in the extended state, as shown in fig. 11 and 12, the first movable end P3 is located at an end of the first restraint slot 1245 remote from the first side wall 1242, the second movable end P4 is located at an end of the second restraint slot 1265 remote from the second side wall 1262, and the resilient element 1254 is in a free state. The direction of the stretching and contracting of the lever assembly 1252 is perpendicular to the moving direction of the first moving end P3 in the first limit groove 1245. In the process from contraction to extension, the position where the first link R1 and the second link R2 are hinged is not changed, the position where the third link R3 and the fourth link R4 are hinged moves toward the position near the hinge where the first link R1 and the second link R2 are hinged, the first fixed end P1 and the second fixed end P2 move leftward and rightward, respectively, the first moving end P3 moves leftward and toward the first fixed end P1, and the second moving end P4 moves rightward and toward the second fixed end P2. In the process from contraction to extension, the first fixed end P1 and the first movable end P3 are always in a relative positional relationship, and the displacement of the two moving in the left-right direction is the same; the second fixed end P2 and the second movable end P4 always maintain a relative positional relationship, and the positions of movement in the left-right direction are the same.

Referring to fig. 13 and 14, the frame assembly 12 further includes a first connecting piece 127, and one end of the first connecting piece 127 is disposed in the receiving space 121 for connecting the rod assembly 1252. The first connecting piece 127 extends out of the receiving space 121 of the frame component 12 through one of the first slot 1246 and the second slot 1266. The first link 127 is used to connect the lever assembly 1252 and the operating lever 15 (as shown in fig. 18 and 19), and the lever assembly 1252 can be locked in the retracted state by the cooperation of the first link 127 with the operating lever. When the lever assembly 1252 is in the retracted state, the operating lever 15 is engaged with the first connecting piece 127, and when the lever assembly 1252 is in the extended state, the operating lever 15 is disengaged from the first connecting piece 127.

One end of the first connecting piece 127 is provided with a fixing hole 1271. Specifically, one end of the first connecting piece 127 includes a fixing portion 1272, a connecting portion 1273 and a main body 1274, the fixing portion 1272 and the main body 1274 are disposed in opposite parallel and spaced apart from each other, the connecting portion 1273 is perpendicularly connected between the fixing portion 1272 and the main body 1274, and a fixing hole 1271 is disposed on the fixing portion 1272. The length of the retainer 1272 is less than the length of the body 1274. In one embodiment, the first connecting piece 127 is a metal plate, and the fixing portion 1272 and the connecting portion 1273 are formed by bending one end of the main body 1274. The body 1274 extends out of the frame assembly 12 from the location of the first slot 1246 and the second slot 1266. A body notch 1275 is formed at one edge of the body 1274. An end of the body 1274 distal from the connection portion 1273 (i.e., distal from the lever assembly 1252) includes a first ramp 1276. When the lever assembly 1252 is in the retracted state, the body notch 1275 is located outside the frame assembly 12 and the body notch 1275 engages the operating lever 15, locking the lever assembly 1252 in the retracted state.

Referring to fig. 2, 15 to 19, the dial 10 further includes a support 142. The bracket 142 is an integral part of the support assembly 14 and may also be considered an integral part of the frame assembly 12. The bracket 142 includes a frame body 1421 and a base 1422, the rod assembly 1252 is connected to the frame body 1421, the left frame 124 and the right frame 126 are slidably connected to the frame body 1421, and the base 1422 is connected to the frame body 1421 and is located outside the receiving space 121 of the frame assembly 12. Base 1422 extends into wristband 20.

The operating lever 15 is elastically slidably connected to the base 1422, and the first connecting piece 127 extends into the base 1422 and cooperates with the operating lever 15 to form a locking structure, so as to lock the lever assembly 1252 in the retracted position.

Specifically, as shown in fig. 18, the base 1422 is configured to accommodate the operating lever 15 and the elastic member 17. As shown in fig. 16, the base 1422 is provided with a first guide groove G1 and a second guide groove G2, and the first guide groove G1 and the second guide groove G2 intersect and communicate. The first guide groove G1 is for receiving the main body of the first link plate 127. The second guide groove G2 is used for receiving the operating lever 15, the second guide groove G2 includes an opposite open end G21 and a guide groove bottom end G22, the open end G21 is located at the edge of the base 1422, so that the outside of the base 1422 communicates with the inside of the second guide groove G2. As shown in fig. 15 and 17, the base 1422 does not have the opening G3 communicating with the second guide groove G2. In one embodiment, the first guide groove G1 and the second guide groove G2 extend perpendicularly, and the second guide groove G2 extends in the same direction as the left frame 124 and the right frame 126 move relative to each other during the extension and retraction of the lever assembly 1252. The first guide groove G1 opens into the receiving space 121 inside the frame assembly 12.

Referring to fig. 19, the joystick 15 includes a head end 151 and a tail end 152 opposite to each other, and a bottom surface 153 and a mating surface 154 connected between the head end 151 and the tail end 152, wherein the bottom surface 153 and the mating surface 154 are opposite to each other. The mating surface 154 is provided with a protrusion 155, a groove 156 and a locking portion 157. Specifically, the groove 156 is provided between the protrusion 155 and the catch 157. The operating lever 15 is mounted in the second guide groove G2 with the projection 155 received in the opening G3, the projection 155 being smaller in size than the opening G3 such that the projection 155 is movable within the opening G3 to limit the travel of the operating lever 15 in the second guide groove G2. The latch 157 is adapted to mate with the body notch 1275 of the first connector tab 127. The latch 157 includes a second inclined surface 1572 facing into the first guide groove G1, the second inclined surface 1572 facing toward the frame assembly 12. The second inclined surface 1572 cooperates with the first inclined surface 1276 to realize that the operating lever 15 is moved in the second guide groove G2 by the movement of the first connecting piece 127. The latch portion 157 of the operating lever 15 has the same shape as the body latch slot 1275 of the first connecting piece 127, and the latch portion 157 is received in the body latch slot 1275 to lock the position of the first connecting piece 127.

The elastic member 17 is elastically connected between the operating lever 15 and the base 1422. Further, the elastic member 17 is received in the second guide groove G2 and is elastically connected between the rear end 152 of the operating lever 15 and the guide groove bottom end G22 of the second guide groove G2. The head 151 of the operating lever 15 can extend out of the base 1422 from the open end G21 of the second guide groove G2 for user operation.

When the lever assembly 1252 is in the retracted state, the head end 151 of the operating lever 15 extends out of the open end G21 of the second guide groove G2 and is located outside the base 1422; the projection 155 of the lever 15 abuts against one end of the opening G3; latch 157 mates with body notch 1275 such that first tab 127 is retained and the pulling force of first tab 127 against rod assembly 1252 counteracts the return force of resilient element 1254 in rod assembly 1252.

When the frame assembly 12 needs to be stretched, the head end 151 of the operating lever 15 is pressed, the operating lever 15 moves in the second guide groove G2, so that the locking portion 157 leaves the main body locking groove 1275, at this time, the pulling force of the first connecting piece 127 on the lever assembly 1252 is eliminated, and under the resilient force of the elastic element 1254 in the lever assembly 1252, the left frame 124 and the right frame 126 are driven to move to the left and right sides, and the first connecting piece 127 is driven to move into the accommodating space 121 of the frame assembly 12. The head end 151 of the operating lever 15 is released, and the operating lever 15 is returned to the initial position by the elastic force of the elastic member 17 in the base 1422.

When it is necessary to retract the frame assembly 12, the left frame 124 and the right frame 126 are pushed to the middle, so that the left frame 124 and the right frame 126 move toward each other, and at the same time, the first connecting piece 127 moves into the first guiding groove G1 of the base 1422, the first inclined surface 1276 of the first connecting piece 127 abuts against the second inclined surface 1572 of the operating lever 15, and the operating lever 15 is forced to move toward the guiding groove bottom end G22 of the second guiding groove G2. When the first connecting piece 127 moves to the position where the locking portion 157 meets the body locking groove 1275, the elastic element 17 in the second guide groove G2 recovers its deformation to drive the operating lever 15 to move toward the open end G21 of the second guide groove G2, so that the locking portion 157 moves into the body locking groove 1275, thereby fixing the first connecting piece 127.

During stretching and shrinking, the position of the bracket 142 remains unchanged.

Referring to fig. 15 and 16, the frame body 1421 of the bracket 142 includes a front baffle 1423, a rear baffle 1424, a plate 1425 and a support beam 1426. The front baffle 1423 and the rear baffle 1424 are disposed at an interval, two limiting strips 1427 are disposed on the surfaces of the front baffle 1423 and the rear baffle 1424 facing each other, a limiting channel is formed between the two limiting strips 1427, and the limiting channel is used for receiving the first side wall 1242 of the left frame 124 and the second side wall 1262 of the right frame 126. In other words, the retaining channel is configured to cooperate with the left frame 124 and the right frame 126 to enable the left frame 124 and the right frame 126 to be slidably coupled to the bracket 142. The plate member 1425 and the support beam 1426 are disposed opposite to each other on both sides of the front and rear fenders 1423 and 1424. The edges of two opposite side edges of the plate member 1425 are connected to one stopper bar 1427 of the front flap 1423 and one stopper bar 1427 of the back flap 1424, respectively, and the front flap 1423 and the back flap 1424 are located on the same side of the plate member 1425. Plate member 1425 is mounted to the top of left and right frames 124, 126, i.e., the side opposite to first bottom wall 1241 of left frame 124 and the side opposite to second bottom wall 1261 of right frame 126. One end edge of the support beam 1426 is connected to another stopper 1427 of the front fender 1423, the other end edge of the support beam 1426 is connected to another stopper 1427 of the rear fender 1424, the support beam 1426 is disposed opposite to the plate 1425, and the support beam 1426 is connected between the front fender 1423 and the rear fender 1424 to form an "i" shaped structure.

Support beam 1426 is used to connect the rod assemblies 1252. The telescoping assembly telescopes about the support beam 1426. The support beam 1426 has a third screw hole 1429 and a third limiting groove 1428, the third screw hole 1429 is close to the rear baffle 1424, and the third limiting groove 1428 is close to the front baffle 1423. The side of the front stop 1423 remote from the rear stop 1424 is attached to the base 1422. The third screw hole 1429 is located between the first screw hole 1244 on the first bottom wall 1241 of the left frame 124 and the second screw hole 1264 on the second bottom wall 1261 of the right frame 126. The first screw hole 1244, the third screw hole 1429 and the second screw hole 1264 are collinear (i.e. the central points of the three are collinear). The third position-limiting groove 1428 is located between the first position-limiting groove 1245 and the second position-limiting groove 1265. The first recess 1245, the third recess 1428 and the second recess 1265 are parallel to each other and have collinear centers. The third screw 1429 is used for fixing the rotating shaft at the hinge of the first link R1 and the second link R2. The third limiting groove 1428 is used for installing a rotating shaft at the hinge joint of the third link R3 and the fourth link R4. The fixing hole 1271 of one end of the first connecting piece 127 is fixedly connected to the rotating shaft at the hinge of the third link R3 and the fourth link R4.

First and second bottom walls 1241 and 1261, respectively, are attached to opposite sides of support beam 1426 when rod assembly 1252 is in the retracted state.

The plate 1425 has a plurality of ribs 14252 formed on a surface thereof for supporting the screen assembly 16, and the ribs 14252 are spaced apart from each other in a row. The bracket 142 with the plurality of ribs 14252 may also be considered part of the support assembly 14.

Referring to fig. 22 to 24, bumps 128 are disposed on the bottom surface of the first bottom wall 1241 and the bottom surface of the second bottom wall 1261. The frame assembly 12 further includes a left base plate 1291, a right base plate 1292, and a pallet 1293. The left bottom plate 1291 and the right bottom plate 1292 are provided with fixing holes, and the left bottom plate 1291 is mounted on the bottom surface of the first bottom wall 1241 and the right bottom plate 1292 is mounted on the bottom surface of the second bottom wall 1261 through the matching of the fixing holes and the protruding points 128. The supporting plate 1293 is fixedly connected to the front and rear fenders 1423 and 1424 of the bracket 142 and shields the supporting beam 1426. The pallet 1293 does not move with the movement of the left and right frames 126. When the frame assembly 12 is in the collapsed condition, the pallet 1293 covers the left and right base plates 1291, 1292, with only the pallet 1293 being visible, as shown in fig. 23. As the frame assembly 12 is stretched, the left and right base plates 1291 and 1292 are pulled out of the pallet 1293 to support the left and right frames 124 and 126, as shown in fig. 24, and the left and right base plates 1291, 1292 and 1293 are attached to one another to form a continuous bottom surface of the frame assembly.

Referring to fig. 25, the roller assembly 18 is used for winding the screen assembly 16, and the roller assembly 18 is disposed in the frame assembly. Specifically inside right frame 126. The second side wall 1262 of the right frame 126 is provided with screw holes to which the ends of the spool assembly 18 are attached by screws. The screen assembly 16 is a flexible screen and when the frame assembly 12 is retracted, a portion of the screen assembly 16 is wound onto the spool assembly 18 and when the frame assembly 12 is extended, the screen assembly 16 is released from the spool assembly 18 and unwound.

Reel subassembly 18 includes reel 181, connector 182, locating part 183 and spring 184, connector 182 fixed connection is in frame subassembly, locating part 183 swivelling joint in frame subassembly 12, and the one end swivelling joint of reel 181 is in connector 182, and the relative other end fixed connection of reel 181 is in locating part 183, the relative both ends of spring 184 respectively fixed connection in connector 182 with locating part 183. When the winding drum 181 rotates, the limiting member 183 rotates along with the winding drum 181, and the connecting head 182 does not rotate along with the winding drum 181. When the reel 181 rotates, one end of the spring 184 rotates along with the limiting member 183, and the other end of the spring remains stationary relative to the connecting head 182, thereby generating a resilient force. The position-limiting member 183 is fixedly connected to the opposite end of the winding drum 181 by a snap (i.e. the position-limiting member step 1832 in the following embodiments).

In one embodiment, referring to fig. 25 and 26, the spool assembly 18 includes a spool 181, a connector 182, a stopper 183, a spring 184, and a fixing member 185. The winding drum 181 includes two opposite end faces connected to a side face between the two end faces, and the side face is a cylindrical face. The winding drum 181 is in a hollow cylindrical shape with two open ends, and the side of the winding drum 181 is provided with a seam 1812, and the seam 1812 is used for fixing the screen assembly 16. The connector 182 is installed to an opening at one end of the winding drum 181, the connector 182 is freely rotatably connected with the winding drum 181 in the circumferential direction (i.e. in the circumferential direction of the winding drum, there is no limit structure), and the rotation centers of the connector 182 and the winding drum 181 are both the axis of the winding drum 181. The fixing member 185 is used to connect the connecting head 182 to the second side wall 1262 of the right frame 126, and the fixing member 185 is matched with the right frame 126 and the connecting head 182 to realize the limit in the circumferential direction between the connecting head 182 and the right frame 126, i.e. the non-rotatable connection. The limiting member 183 is connected to an opening at the other end of the winding drum 181. The limiting member 183 is fixedly connected to the winding drum 181, and the two are connected in a limiting manner in the circumferential direction, i.e., the two cannot rotate relatively. The limiting member 183 is rotatably connected to the screw hole of the right frame 126 by a screw. The spring 184 is disposed in the winding drum 181, one end of the spring 184 is connected to the connection head 182, the other end of the spring 184 is connected to the limiting member 183, the spring 184 is in an axial compression state in the winding drum 181, and the elastic force of the spring 184 generates a thrust force on the connection head 182, so that the connection head 182 abuts against the right frame 126.

Referring to fig. 27, the position limiter 183 includes a base 1831, a position limiter step 1832 (corresponding to the above-mentioned buckle) formed on the base 1831, and a position limiter protrusion 1833. One end of the reel 181 connected to the stopper 183 is provided with a reel notch 1813. The stopper step 1832 is engaged with the reel notch 1813 of the reel 181, so as to realize the fixed connection between the stopper 183 and the reel 181 in the circumferential direction. A third through hole 1834 is disposed on the position-limiting protrusion 1833, and the third through hole 1834 is used to fix the spring 184. Further, the base 1831 covers the end surface of the winding drum 181, a circular truncated cone is disposed on the surface of the base 1831 in a protruding manner, and the position-limiting protrusion 1833 is formed on the surface of the circular truncated cone on the side away from the base 1831, in a preferred embodiment, the position-limiting protrusion 1833 is located in a central region of the circular truncated cone. The retainer steps 1832 are located on the side surface of the circular truncated cone and formed on the surface of the base 1831, and in a preferred embodiment, the number of the retainer steps 1832 is two, and the retainer steps are symmetrically distributed on the periphery of the circular truncated cone, and accordingly, the number of the reel notches 1813 is also two. In one embodiment the base 1831 is disk-shaped and the spool 181 is cylindrical. The circular truncated cone extends into the bobbin 181 and contacts the inner surface of the bobbin 181. When the limiting member 183 and the winding drum 181 rotate together, the limiting member protruding column 1833 drives one end of the spring 184 to rotate, and the other end of the spring 184 is fixed to the connector 182 and does not rotate, so that the spring 184 is twisted to generate elastic deformation. The elastic deformation generated by the torsion of the spring 184 can drive the reel 181 to automatically rotate. The base 1831 of the limiting member 183 is provided with a threaded hole, and the limiting member 183 is rotatably connected to the right frame 126 through the screw 186 and the threaded hole, as shown in fig. 31.

Referring to fig. 28, the screw 186 includes a flat section 1862 and a threaded section 1864 formed on one side of the screw head. Flattened section 1862 passes through the threaded hole of right frame 126 and threaded section 1864 is locked into the threaded hole of base 1831, as shown in fig. 31. To fix the screw 186 to the base 1831, the flat 1862 of the screw 186 corresponds to the rotation shaft of the right frame 126 connected to the reel assembly 18, the surface of the flat 1862 is smooth, and the flat 1862 and the screw hole of the right frame 126 are in clearance fit and can rotate freely.

Referring to fig. 29, the connecting head 182 includes a base plate 1821 and a connecting head protrusion 1822, the base plate 1821 is provided with a slot 1823, the slot 1823 is a non-rotational symmetric structure, for example, the slot 1823 may be a semi-circle, a polygon, or the like. The base plate 1821 covers the end surface of the winding drum 181, and the connector protrusion 1822 extends into the winding drum 181. The connector protrusion 1822 is provided with a fourth through hole 1824, and the fourth through hole 1824 is used for fixing one end of the spring 184. The connector protrusion 1822 further includes a mating surface 18221, as shown in fig. 31, the mating surface 18221 contacts with the inner surface of the winding drum 181, the mating surface 18221 is a cylindrical surface, and the contact between the mating surface 18221 and the inner surface of the winding drum 181 realizes the position limitation between the connector 182 and the winding drum 181 in the radial direction, so that the connector 182 and the winding drum 181 have a smooth rotational connection relationship therebetween and do not shake in the radial direction. The radial direction refers to a direction perpendicular to the axial direction of the bobbin 181.

The connector 182 is located inside the right frame 126. Referring to FIG. 30, the fixing member 185 includes a fixing head 1851 and an insertion rod 1852, and the insertion rod 1852 has a shape corresponding to the shape of the slot 1823 of the base 1821 of the connecting head 182. The insertion rod 1852 and the slot 1823 are both non-rotationally symmetrical, and the insertion rod 1852 and the slot 1823 cooperate to fixedly connect the connecting head 182 to the fixing element 185. In one embodiment, plunger 1852 is a cylindrical surface that is partially cut away, i.e., it is comprised of a circular arc surface and a flat surface. In other embodiments, the interface of the plunger 1852 can be triangular or square or other irregular shapes, so long as the plunger 1852 is secured against rotation in the slot 1823. The fixed head 1851 is a non-rotationally symmetric structure, e.g., the fixed head is square.

Referring to fig. 31, the sidewall of the right frame 126 is provided with a groove matching with the fixing head 1851 of the fixing member 185, for example: the fixed head 1851 is contained in the square groove, and the fixed head and the square groove are connected in a non-transferable manner. The end surface of the fixing head 1851 is provided with an opening 1853. The connection head 182 and the winding drum 181 are not fixed, and the winding drum 181 does not drive the connection head 182 to rotate when rotating.

When it is necessary to adjust the torsion force of the spring 184 in the winding drum 181 in the circumferential direction, the fixing member 185 may be partially pulled out from the square groove of the right frame 126, and then the fixing head 1851 may be rotated by inserting a tool into the opening 1853 of the fixing head 1851 of the fixing member 185. Since the plane of the insert 1852 of the fixing element 185 abuts against the plane of the slot 1823 of the connecting head 182, the connecting head 182 is driven to rotate together, and the connecting head 182 drives one end of the spring 184 to rotate through the connecting head protrusion 1822, so that the spring 184 is twisted, and the torsion force is changed. Therefore, since the square groove of the right frame 126 is a through groove provided on the second side wall 1262, the torsion force of the spring 184 in the reel 181 can be adjusted outside the frame assembly 12 without disassembling the dial 10. After the adjustment, the fixing member 185 is pushed into the square groove.

When the dial 10 is stretched and unfolded, the reel 181 rotates to drive the spring 184 in the reel 181 to generate torsional deformation under the pulling of the screen assembly 16, so as to generate resilience. When the user promotes left and right frame 124, 126 for dial plate 10 contracts, under the effect of twisting elasticity, reel 181 will rotate, drive screen subassembly 16 rolling on reel 181, consequently, this application can realize the effect of automatic rolling screen subassembly 16. The elastic force of the torsional deformation of the spring 184 in the reel 181 is smaller than the elastic force of the elastic member 1254 of the elastic link assembly 1252 in the frame assembly 12, so as to prevent the dial 10 from being automatically contracted by the spring 184 in the reel 181 after being stretched.

Referring to fig. 32 to 36, the supporting assembly 14 includes a left supporting frame 144, a right supporting frame 146 and a bracket 142. The frame assembly 12 is part of a support assembly 14. The left frame 124 and the right frame 126 are slidably connected within the retaining strips 1427 of the front and rear stops 1423, 1424 of the bracket 142. Left support bracket 144 is secured to left frame 124 and right support bracket 146 is secured to right frame 126.

Referring to fig. 32, the left supporting frame 144 includes a first base 1441, a pair of first side plates 1442, a first bottom plate 1443, and a first tooth 1444.

The first base 1441 has an arc-shaped surface. Specifically, the cross section of the first base 1441 is semicircular, and the surface of the first base 1441 is a semi-cylindrical surface. The first tooth 1444 and the first bottom plate 1443 are respectively coupled to the top and bottom of the first base 1441. A smooth transition is formed from the surface of the first tooth 1444 to the surface of the first base 1443 by the first curved base 1441. Further, the plane of the first tooth 1444 is parallel to the plane of the first bottom plate 1443. A pair of first side plates 1442 are respectively positioned at the front and rear ends of the first base 1441, and the first side plates 1442 are connected between the first base 1441 and the first bottom plate 1443.

The first side plate 1442 is configured to be fixedly connected to the first side wall 1242 of the left frame 124. Specifically, the first side plate 1442 is provided with screw holes, and is locked to the inner surface of the first side wall 1242 of the left frame 124 by screws passing through the screw holes. The first side wall 1242 and the first bottom plate 1443 are received in the receiving space 121 of the frame assembly 12. The left support bracket 144 can move with the left frame 124. One end of the screen assembly 16 passes through the gap between the first base 1441 of the left supporting frame 144 and the first connecting wall 1243 of the left frame 124 to be fixedly connected, and is electrically connected with the internal electronic device.

The first tooth 1444 includes a plurality of racks 1445, each rack 1445 includes a root and a tip, the root extends toward the tip for a length of the rack 1445, and a dimension perpendicular to the length of the rack 1445 is a width of the rack 1445. in one embodiment, in the first tooth 1444, a perpendicular distance L between two adjacent racks 1445 (i.e., a gap width between adjacent racks) is twice a width W of a single rack 1445.

Referring to fig. 33, the right supporting frame 146 includes a second base 1461, a second tooth 1464 and a pair of tabs 1462.

The second base 1461 has an arc surface shape. Specifically, the cross section of the second base 1461 is arc-shaped, and the surface of the second base 1461 is in the shape of a quarter cylinder. The second base 1461 includes a front end surface, a rear end surface, and a side surface connected between the front and rear end surfaces. The second tooth 1464 is connected to the side. The front and rear end surfaces are provided with screw holes 1463, and the second base 1461 is fastened to the inner surface of the second side wall 1262 of the right frame 126 by screws passing through the screw holes 1463. A pair of protruding pieces 1462 respectively protruding from the front end surface and the rear end surface, the protruding pieces 1462 being engaged with the right frame 126

Second side wall 1262 is within right frame cutout 1267, as shown in fig. 35, to facilitate positioning right support shelf 146 to right frame 126. The right support frame 146 can move with the right frame 126. The other end of the screen assembly 16 passes through the space between the second base 1461 of the right support bracket 146 and the second connecting wall 1263 of the right frame 126, and is then wound around the reel assembly 18.

The second tooth 1464 is identical in structure to the first tooth 1444, and the rack 1465 in the second tooth 1464 is identical in size to the rack 1445 of the first tooth 1444. in one embodiment, the perpendicular distance L between two adjacent racks 1465 in the second tooth 1464 (i.e., the gap width between adjacent racks) is twice the width W of a single rack 1465.

As shown in fig. 34 and 35, the first tooth 1444 of the left support bracket 144 is coplanar with the second tooth 1464 of the right support bracket 146. The left support frame 144 and the right support frame 146 are respectively located at two sides of the frame body 1421 of the bracket 142. The plurality of ribs 14252 on the surface of the plate 1425 of the frame 1421 are spaced from each other, and the plane of the ribs 14252 is coplanar with the first tooth 1444 of the left support frame 144 and the second tooth 1464 of the right support frame 146. The gap between two adjacent ribs 14252 forms a receiving groove, and the rack 1445 of the first tooth portion 1444 and the rack 1465 of the second tooth portion 1464 can be received in the receiving groove. Each of the receiving grooves receives therein a rack of the first tooth portion 1444 and a rack of the second tooth portion 1464. In one embodiment, the width of the gap between two adjacent ribs 14252 is equal to the width of one rack 1445 of the first tooth 1444 plus the width of one rack 1465 of the second tooth 1464. One of the ribs 14252 has a width equal to a width of one rack 1445 of the first tooth portion 1444 or a width of one rack 1465 of the second tooth portion 1464. Specifically, the width of the receiving groove is greater than or equal to the width of one rack 1445 of the first tooth portion 1444 or the width of one rack 1465 of the second tooth portion 1464, and is smaller than the sum of the widths of the one rack 1445 of the first tooth portion 1444 and the one rack 1465 of the second tooth portion 1464.

In the left and right support frames 144, 146, the width of the gap between the adjacent racks is twice as large as the width of the racks, and the width of the rib 14252 on the plate 1425 of the frame body 1421 is the same as the width of the racks 1445, 1465. Referring to fig. 34, when the left and right supporting frames 144, 146 move to close along with the left and right frames 124, 126, the rack 1465 of the right supporting frame 146 and the rack 1445 of the left supporting frame 144 are completely received in the gap between the ribs 14252 of the frame body 1421, so that the racks 1445, 1465 of the left and right supporting frames 144, 146 and the ribs 14252 of the frame body 1421 form a flat plane together, and the touch feeling of the screen assembly 16 on the flat plane is ensured.

Referring to fig. 35, when the left and right supporting frames 144, 146 move to open along with the left and right frames 124, 126, the rack 1465 of the right supporting frame 146 and the rack 1445 of the left supporting frame 144 are only partially received in the gap (i.e., the receiving slot) between the ribs 14252 of the frame 1421, so that the racks 1445, 1465 of the left and right supporting frames 144, 146 and the ribs 14252 of the frame 1421 together form a discontinuous plane, i.e., adjacent supporting surfaces (referring to the surfaces of the racks 1445, 1465 and the ribs 14252 for supporting the screen assembly 16) are separated by the receiving slot. However, in the transverse direction (i.e. from left to right), each rib 14252 is continuously distributed with the rack 1445 of the adjacent left support frame 144 and the rack 1465 of the adjacent right support frame 146; the spacing between each adjacent rack 1445, 1465 and each adjacent rib 14252 in the longitudinal direction may still provide good support for the screen assembly. In fact, because the width of a human finger is much greater than the spacing between ribs 14252 and the spacing between racks 1445 and 1465, the feel of a touch on screen assembly 16 is not significantly affected.

Referring to fig. 36, a tray 147 is fixed in the left support frame 144. The tray 147 is located between the first tooth 1444 and the first bottom plate 1443 for supporting the positioning circuit board 148, and the bottom of the tray 147 is attached to the first bottom plate 1443 of the left supporting frame 144. The front and back sides of the circuit board 148 are provided with electronics, such as controllers, memory, etc., for controlling the screen assembly 16. In other embodiments, the circuit board 148 can be directly fixed on the first bottom plate 1443. Specifically, the tray 147 is screwed to the inner surface of the first side plate 1242 of the left frame 124 together with the first side plate 1442 of the left support frame 144. Hooks 1472 are formed on the tray 147, and the hooks 1472 are used for positioning the circuit board 148 on the tray 147 in a suspended manner, so that the front and back sides of the circuit board 148 have space for accommodating electronic devices.

Referring to fig. 37, a first bottom plate 1443 of the left support bracket 144 and a first bottom wall 1241 of the left frame 124 are spaced apart from each other to form a space for accommodating the telescopic assembly 125 (the rod assembly 1252 in the present embodiment). The right support bracket 146 is positioned above the spool assembly 18. The spool assembly 18 is sandwiched between the right support bracket 146 and the lever assembly 1252. Second base 1461 of right support frame 146 forms a gap with right frame 126, so that screen assembly 16 can be inserted into right frame 126 through the gap and wound on reel 181.

The present application also provides another support assembly 14 configuration. As shown in fig. 38 to 42. In this embodiment, the supporting component 14 is different from the supporting component 14 of the previous embodiment in that: the rack 1421 of the rack 142 has a structure matching with the tooth structure of the left and right supports 146. In the supporting assembly 14 of the previous embodiment, the ribs 14252 on the bracket 142 form receiving slots, each receiving the racks of the left and right supporting frames 144, 146, and one receiving slot receives two racks. In the supporting assembly 14 of the present embodiment, the surface of the plate 1425 of the frame 1421 of the bracket 142 is not provided with the rib 14252, but the surface of the plate 1425 is coplanar with the surfaces of the teeth of the left and right supporting frames 144, 146, meanwhile, the surface of the plate 1425 is provided with a plurality of receiving slots 14253, the distribution of the receiving slots 14253 is denser than the distribution of the receiving slots 14253 on the frame 1421 of the previous embodiment, a supporting strip for supporting the screen assembly 16 is formed between two adjacent receiving slots 14253, and each receiving slot 14253 only receives one rack 1445 of the left supporting frame 144 or one rack 1465 of the right supporting frame 146, that is, one receiving slot 14253 receives one rack. The racks 1445 of the left support frame 144 and the racks 1465 of the right support frame 146 are alternately spaced from each other and are engaged with the receiving grooves 14253, that is, the receiving grooves 14253 are aligned in a row, the number of the receiving grooves 14253 is equal to the sum of the number of the racks 1445 of the first tooth portion 1444 and the number of the racks 1465 of the second tooth portion 1464, and the racks 1445 of the left support frame 144 and the racks 1465 of the right support frame 146 are respectively received in two adjacent receiving grooves 14253.

Referring to fig. 40, when the left and right supporting frames 144, 146 are moved to open along with the left and right frames 124, 126, the adjacent supporting surfaces (referring to the surfaces of the racks 1445, 1465 for supporting the screen assembly 16 and the surfaces of the supporting bars formed between the adjacent two receiving slots 14253 for supporting the screen assembly 16) are continuous near the edge of the supporting frame 142.

Referring to fig. 41, the rack 1445, 1465 of the support assembly 14 of the present embodiment has a substantially circular cross-section with its top surface cut away to form a flat support surface for better attachment to the screen assembly 16. The cross-section of the receiving slot 14253 of the bracket 142 is also circular with a truncated top to receive the racks 1445, 1465.

Since the racks 1445, 1465 of the left and right support frames 144, 146 are configured to be narrow at the top and wide at the bottom, and the cross section of the receiving groove 14253 is narrow at the top and wide at the bottom, that is, the opening of the receiving groove 14253 in the direction perpendicular to the surface of the plate 1425 of the bracket 142 (i.e., the direction perpendicular to the screen assembly 16) is smaller than the size of the inner space thereof, so that the racks 1445, 1465 are vertically limited by the receiving groove 14253 by the blocking of the inner wall of the receiving groove 14253 in the receiving groove 14253, and any position of the racks 1445, 1465 will not be separated from the receiving groove 14253, and therefore, the end of the racks 1445, 1465 will not be tilted, and the flatness of the screen assembly 16 can be further ensured.

Further, the rack 1445 of the left support bracket 144 and the first base 1441 may be integrally formed, or may be a two-piece structure, i.e., manufactured separately and assembled together. The connection between the rack 1465 of the right support frame 146 and the second base 1461 can be formed integrally or in two pieces.

The application also discloses a triggering device, which is used for selectively triggering the working area of the screen assembly 16 according to the display size of the screen assembly 16, so as to realize the automatic switching effect of the working area of the screen assembly 16. Because the dial 10 is retractable and expandable, when the dial 10 is retracted, the trigger device triggers the screen assembly 16 to work only in the exposed partial area, and the retracted part does not need to work; when the dial 10 is unfolded, the exposed area of the screen assembly 16 is increased, and the triggering device triggers all exposed areas of the screen assembly 16 to work.

The trigger device comprises a controller 1482, a screen assembly 16, a telescopic supporting assembly 14 for supporting the screen assembly 16, and a driving assembly for driving the supporting assembly 14, wherein the driving assembly is provided with a first contact, the supporting assembly 14 is provided with a second contact which can move relative to the first contact, in the process of extending or retracting the supporting assembly 14, the first contact and the second contact move relatively to be in a contact or separated state, and the controller 1482 judges that the supporting assembly 14 is in a retracted state or an extended state according to the contact state or the separated state of the first contact and the second contact, so as to control the display of the screen assembly 16.

Referring to fig. 42, 43, 44, 45 and 46, the driving assembly corresponds to the lever assembly 1252 in the present embodiment, and the first contact is disposed on the lever assembly 1252. The second contact is arranged on the spring plate 19. The elastic sheet 19 is fixedly connected with the supporting component 14 and can be regarded as a component of the supporting component 14. In one embodiment, the support assembly 14 extends and retracts in a first direction and the first contact moves relative to the second contact in a second direction, the first direction being different from the second direction. In a preferred embodiment, the first direction is perpendicular to the second direction. When the supporting member 14 extends and retracts in the first direction, the first contact and the second contact move along the first direction.

The driving assembly comprises a first link R1 and a second link R2 hinged with each other, and when the supporting assembly 14 extends or contracts, the first link R1 and the second link R2 move relatively. In one embodiment, the first contact is disposed on the second link R2, the second link R2 is made of conductive material, and the second link R2 is electrically connected to the controller 1482. When the first contact is in contact with the second contact, the second link R2 forms a current path with the controller 1482; when the first contact is separated from the second contact, the second link R2 is disconnected from the current path formed by the controller 1482.

Referring to fig. 46, specifically, a first contact is grounded, a second contact is electrically connected to a terminal of a controller 1482, the controller 1482 is further electrically connected to a resistor (i.e., a pull-up resistor 1483 in the embodiment shown in fig. 46), and when the first contact is contacted to the second contact, a low voltage is present at the terminal of the controller 1482; when the first contact is separated from the second contact, the resistor (i.e., pull-up resistor 1483) generates a high level signal and inputs it to a terminal of the controller 1482.

In the present embodiment, the trigger operation is realized by one link (for example, the second link R2) of the lever assembly 1252 engaging with the resilient piece 19. The rod assembly 1252 can extend and retract to drive the frame assembly 12 for carrying the screen assembly 16 to extend and retract, the elastic sheet 19 is fixedly connected with the left frame 124 in the frame assembly 12, the rod assembly 1252 comprises a rod assembly convex column 194, and in the process of extending and retracting the rod assembly 1252, the rod assembly convex column 194 generates displacement relative to the elastic sheet 19. In this embodiment, the rod assembly 1252 has a rod assembly boss 194 at the first moving end P3 extending toward the bottom of the left support frame 144. Specifically, the lever assembly boss 194 is disposed at one end of the second link R2. That is, the first contact includes the lever assembly boss 194 formed on the second link R2, and the second contact includes the spring plate 19.

Specifically, the support assembly 14 includes a tray 147, the controller 1482 is mounted above the tray 147, and the second contacts are secured below the tray 147. The bottom of the left support bracket 144 (i.e., the first bottom plate 1443) is provided with a through slot exposing the bottom of the tray 147. The spring plate 19 includes a fixing plate 192 and a pressing plate 193. The fixing plate 192 is fixed in the through groove by a screw. The tray 147 and the circuit board 148 are located on a side of the first bottom plate 1443 away from the first bottom wall 1241 of the left frame 124. The fixing pieces 192 are electrically connected to the electronic devices on the circuit board 148 provided in the tray 147. The pressing piece 193 protrudes and extends from the fixing piece 192 toward the rod assembly 1252. In one embodiment, the pressing piece 193 is a bent structure and is integrally formed with the fixing piece 192, and the pressing piece 193 may be perpendicular to the fixing piece 192. The pressing piece 193 is used to abut the lever assembly 1252.

Referring in detail to fig. 43 and 45, post 194 is connected to ground on circuit board 148 (referring to circuit board 148 in left support bracket 144 of support assembly 14) by wire 195 which is connected to post 1252. Accordingly, rod assembly post 194 is grounded. In one embodiment, rod assembly post 194 and rod assembly 1252 are both conductive materials, such as metal rods, and rod assembly 1252 is electrically connected to ground of circuit board 148 by wire 195. In another embodiment, rod assembly 1252 is an insulating material, rod assembly post 194 is a conductive material, and rod assembly post 194 is electrically connected to the circuit board ground by a wire.

As shown in fig. 43 and 45, the resilient piece 19 is electrically connected to the controller 1482 on the circuit board 148 through a wire 196.

The rod assembly boss 194, the spring plate 19 and the electronic components on the circuit board 148 form a sensing circuit, and the sensing circuit is used for sensing the position relationship between the rod assembly boss 194 and the spring plate 19 and generating signals. A controller 1482 on the circuit board 148 is configured to receive signals transmitted by the sensing circuitry and control the display of the screen assembly 16.

When the dial 10 is contracted, the first moving end P3 is located at one end of the first limiting groove 1245 close to the first side wall 1242 of the left frame 124, the rod assembly boss 194 contacts or abuts against the abutting piece 193, and the sensing circuit forms a closed current loop through the electrical connection between the spring plate 19 and the rod assembly 1252, so as to generate a signal. Controller 1482 on circuit board 148 receives the signal to determine that dial 10 is in the retracted state and further controller 1482 controls screen assembly 16 to operate only in the exposed area.

When the dial 10 is unfolded, the first moving end P3 moves to the end of the first limiting groove 1245 away from the first side wall 1242, and the rod assembly boss 194 separates from the pressing piece 193, so that the current loop of the sensing circuit is disconnected. Controller 1482 is unable to receive a signal and at this point controller 1482 determines that dial 10 is in the extended state and further controls the operation of all exposed areas of screen assembly 16.

In detail, referring to fig. 46, a circuit configuration of the triggering device in an embodiment includes a controller 1482 and a pull-up resistor 1483, the controller 1482 is electrically connected to the elastic piece 19, a switch structure is formed between the elastic piece 19 and the rod assembly boss 194, when the elastic piece 19 abuts against the rod assembly boss 194, the elastic piece 19 is electrically connected to a ground terminal of the rod assembly boss 194, and a voltage at a terminal of the controller 1482 is 0, which is represented as a low level. The controller 1482 receives the low signal and determines that the panel assembly 16 is in the retracted state. When the spring plate 19 is separated from the rod assembly post 194, the spring plate 19 is disconnected from the ground, and a high level generated by the pull-up resistor 1483 is input to the terminal of the controller 1482. The controller 1482 receives the high signal and determines that the panel assembly 16 is in the extended state.

The triggering structure of the application, because the automatic switching function of the screen assembly 16 is realized by adopting the telescopic structure (i.e. the rod assembly 1252), does not need to add a complex switching device (only adding a simple-structure elastic sheet 19) in the dial 10, and does not additionally occupy too much space in the dial 10, so that the dial 10 has a more compact structure, and is beneficial to saving the internal space of the dial 10.

In one embodiment, the left frame 124, the right frame 126, the left support frame 144, the right support frame 146, and the like of the dial 10 are made of metal materials, so that if the wireless communication module is disposed in the dial 10, the wireless communication module will not work well due to the metal shielding effect. Thus, the present application further designs unique antenna structures.

Referring to fig. 47, the antenna structure includes a wireless communication module (not shown) and an antenna module, and the wireless communication module is disposed on a circuit board 148 inside the dial 10. The controller 1482 is electrically connected to the dial FPC11, the dial FPC11 penetrates out of the support assembly 14 and is partially located outside the dial 10, and the antenna module is attached to the portion of the dial FPC11 located outside the dial 10. The antenna module is arranged on a dial FPC11 extending out of the dial 10 and is electrically connected with the wireless communication module through a lead.

Referring to fig. 48 and 49, specifically, the dial FPC11 extends out of the frame assembly 12 from the first slot 1246 on the first side wall 1242 of the left bezel 124 and the second slot 1266 on the second side wall 1262 of the right bezel 126. The dial FPC11 is provided with a key 112 and connector 113 structure for electrical connection with the structure on the wristband 20. The connector 113 and the keys 112 are disposed on the front surface of the dial FPC11, and are electrically connected to the electronic devices on the circuit board 148 through wires 115.

The part of the dial FPC11 located outside the dial 10 is further provided with a reinforcing structure 114 separated from the antenna module, and the reinforcing structure 114 and the antenna module are located on the same side of the FPC. The part of the dial FPC11 located outside the dial 10 is also provided with keys 112, and the keys 112 and the antenna module are located on opposite sides of the dial FPC11, respectively. Specifically, the bottom surface of the dial FPC11 is provided with a reinforcing structure 114, as shown in fig. 47, the reinforcing structure 114 includes two independent parts, and the reinforcing structure 114 is made of a rigid material, so that the hardness of the dial FPC11 can be enhanced, and the dial FPC11 can be smoothly connected to electronic devices such as keys and connectors by extending out of the dial 10. The provision of the reinforcing structure 114 is beneficial to enhance the stability and the service life of the keys 112 and the connector 113 on the FCP. The reinforcing structure 114 disposed on the bottom surface of the dial FPC11 may be a metal sheet, and further, the reinforcing structure 114 may be an antenna module, that is, a radiator of an antenna, and the antenna module is electrically connected to the wireless communication module through a wire to implement receiving and transmitting of a wireless signal. The antenna module may be configured as an inverted-F antenna or other type of antenna. In particular, the reinforcing structure 114 on the left side and the reinforcing structure 114 on the right side are isolated from each other by a trench. The area of the reinforcing structure 114 on the left side is smaller than the area of the reinforcing structure 114 on the right side. Only the left reinforcing structure 114 serves as an antenna module, and the right reinforcing structure 114 serves as support reinforcement only.

The dial FPC11 protruding out of the portion of the dial 10 is fixed to the base 1422 of the holder 142, the bottom surface of the dial FPC11 is attached to the base 1422, and the connector 113 and the keys 112 on the front surface of the dial FPC11 are exposed to be combined with the relevant features on the wrist band 20.

The watch face 10 of the present application is combined with the wrist band 20, and the wrist band 20 is not only used for being worn on the wrist of a user, but also used for supplying power to the watch face 10 through the wrist band 20. The present application places the battery module 30 on the wristband 20, avoiding taking up space within the dial 10, facilitating a small size design of the dial 10.

Referring to fig. 50 to 53, the wrist band 20 includes a connecting member 21, a supporting sheet 22 and an enclosing body 23. The connecting piece 21 is connected to one end of the supporting piece 22 for connecting the supporting piece 22 to the dial 10, and the wrapping body 23 is wrapped outside the supporting piece 22 and the connecting piece 21 for contacting with the wrist of the human body.

The connecting member 21 includes an end surface 211, a bottom surface 212, a top surface 213, and a first side surface 214 and a second side surface 215 oppositely disposed and connected between the end surface 211, the bottom surface 212, and the top surface 213. The top surface 213 is curved. The bottom surface 212 includes an arc-shaped surface corresponding to the top surface 213 and a flat surface corresponding to the end surface 211. The connector 21 has an accommodating space therein. The end face 211 is provided with a first opening 2112, the end face 211 is combined with the dial 10, and partial features of the dial 10 extend into the connecting piece 21 through the first opening 2112. In this embodiment, the first opening 2112 is used for allowing the base 1422 on the support 142 of the dial 10 to extend into the connecting member 21. The top surface 213 is provided with a second opening 2132 and a third opening 2133, the second opening 2132 is close to the end surface 211 and is communicated with the first opening 2112, after the base 1422 extends into the connecting piece 21, the keys on the dial FPC11 on the base 1422 are accommodated in the second opening 2132. The third opening 2133 is opposite to the bottom surface 212.

Support sheet 22 is made of a flexible sheet of metal that is inserted into enclosure 23. The support sheet 22 includes a support sheet top end 221, a support sheet bottom end 222, and a curved section 223 connected between the support sheet top end 221 and the support sheet bottom end 222. Support sheet top end 221 is for fixed connection with connector 21. The support piece bottom end 222 is used to hold the battery module 30. In a preferred embodiment, the top end 221 of the support sheet is in a plane that is substantially parallel to the bottom end 222 of the support sheet (i.e., the top end 221 of the support sheet and the bottom end 222 of the support sheet are parallel or nearly parallel). The support sheet 22 is attached with the support sheet FPC25, and the support sheet FPC25 extends from the support sheet bottom end 222 of the support sheet 22 to the support sheet top end 221. The support piece FPC25 on the support piece 22 is fixedly connected to the dial FPC11 of the dial 10, thereby conducting signals and current.

The support piece top end 221 of the support piece 22 passes through the end face of the bottom face 212, as shown in fig. 51 and 52, and the support piece top end 221 is locked in the connecting piece 21 by four screws. A speaker 24 is fixed to one side of the top end of the support sheet 22, and the speaker 24 is accommodated in the third opening 2133, but the speaker 24 may also be other electronic devices, such as a battery management chip, a flashlight, and the like. The first side surface 214 of the connecting member 21 is provided with a second through hole 2142, the second through hole 2142 is disposed near the end surface 211 and is communicated with the first opening 2112, and the head 151 of the operating lever 15 in the base 1422 extends into the second through hole 2142.

Referring to fig. 53, the bottom end 222 of the support sheet 22 is provided with the battery module 30 connected to the support sheet FPC 25. The battery module 30 includes a bottom frame 32 and a top cover 34.

The bottom frame 32 is bonded to the support sheet bottom end 222 of the support sheet 22 by injection molding or the like. The bottom frame 32 is a hollow square frame structure, and is formed by connecting four side walls. The four side walls are commonly surrounded to form an opening. Support sheet 22 is exposed within the opening.

As shown in fig. 53, the number of the baffles 2221 is two, and the baffles 2221 are formed by cutting and bending the bottom end 222 of the support sheet 22. The baffle 2221 is fixedly connected with the bottom frame 32. In one embodiment, the bottom end 222 of the support sheet is a sheet-shaped structure, and the baffle 2221 is perpendicular to the surface of the bottom end 222 of the support sheet. The stop 2221 of the support piece 22 is inserted into one side wall of the bottom frame 32 during the forming process of the bottom frame 32, so that the bottom frame 32 is more stably combined with the support piece 22. Specifically, the bottom frame 32 may be formed on the support piece bottom end 222 by injection molding.

The bottom frame 32 is provided with a buttonhole. The top cover 34 is provided with a hook for being engaged in the fastening hole of the bottom frame 32, thereby fixing the top cover 34 and the bottom frame 32. Further, screws are passed through screw holes of the top cover 34 and locked into screw holes of the bottom frame 32 to fix both.

The bottom frame 32 is provided with an inner cavity for accommodating the battery, and the top cover 34 covers the bottom frame 32 to shield the battery in the bottom frame 32.

Referring to fig. 53, the present application further includes a power switch 40, and in one embodiment, the power switch 40 is disposed at one side of the battery module 30. Specifically, the power switch 40 is provided on the support sheet FPC25 inside the wristband 20. The support piece FPC25 attached to the support piece 22 forms a side wing 252 at the position of the bottom end 222 of the support piece 22, the power switch 40 is disposed on the side wing 252, and the side wing 252 extends into the side wall of the bottom frame 32 and is fixed to the first through hole 322 of the side wall of the bottom frame 32 through a fixing structure.

In another embodiment, the support sheet FPC25 is formed with a cross-shaped structure at the bottom and erected with side flaps 252 on both sides. The side wall of the bottom frame 32 is provided with two first through holes 322 for the side wings 252 of the support piece FPC25 to pass through. The support piece FPC25 is attached to the bottom surface of the support piece 22, and the bottom frame 32 is fixed to the top surface of the support piece 22. The bottom frame 32 has a first through hole 322 formed in a sidewall thereof. The bottom end 222 of the support sheet 22 is provided with a through hole 2222 penetrating the bottom surface and the top surface.

Referring to fig. 54, the supporting piece FPC25 penetrates into the bottom frame 32 from the through hole 2222 of the supporting piece 22, and the side wings 252 extend into the first through holes 322 of the bottom frame 32. One of the wings 252 has a power switch 40 secured thereto. The battery module 30 further includes support springs 36. The supporting spring 36 includes a pair of abutting portions 362 and a second elastic connecting piece 364 connected between the pair of abutting portions 362. The pair of abutting portions 362 abut against the two side wings 252 of the support piece FPC25, respectively, and the second connecting piece 364 is connected between the pair of abutting portions 362 to support the power switch 40, so that the power switch 40 can be supported by the support spring 36 to return to its original position after being pressed down. The supporting elastic sheet 36 and the supporting sheet FPC25 together surround the battery, and the two side wings 252 are respectively located on two sides of the battery.

As shown in fig. 51, 52 and 53, the wristband 20 further includes a strap 26, and a support sheet bottom end 222 of the support sheet 22 is connected to the strap 26 by rivets. The straps 26 are made of a deformable stainless steel sheet material. The strap 26 is made of a different material from the support sheet 22, and the strap 26 has a higher strength than the support sheet 22, and is mainly used to shape the pack 23 to conform to the shape of the wrist of the human body. The strap 26 is flexible, can be bent to any position, and can maintain its shape at any position. Therefore, the wrist band 20 is prevented from falling off by the strap 26 while surrounding the wrist by the support sheet 22.

The screw passes through the top 221 of the support piece 22 and the bottom 212 of the connecting piece 21 and is locked in the screw hole of the base 1422 of the bracket 142, so as to assemble and fix the dial 10, the connecting piece 21 and the support piece 22.

The inclusion body 23 is used for wrapping the connecting piece 21 and the supporting piece 22. In one embodiment, the enclosure 23 is made of a soft material. Specifically, the supporting sheet 22 is preferably an elastic manganese steel sheet, and the inclusion body 23 is a silicone rubber formed on the supporting sheet 22.

Referring to fig. 50 to 52, the enclosure 23 includes a top 236 and a bottom 237, the top 236 being close to the dial 10, and the bottom 237 being far from the dial 10. One end of the top 236 of the inclusion 23 is provided with a receiving space 2351 for receiving the connector 21. The top surface of the top 236 of the inclusion 23 is provided with a home button 231, the home button 231 is arranged opposite to the second opening 2132 on the connecting piece 21, the home button 231 corresponds to the key 112 on the dial FPC11, and the key 112 on the dial FPC11 can be triggered by pressing down the home button 231, so that the display content of the screen assembly 16 returns to the home interface.

The side of the top 236 of the enclosing body 23 is provided with an expansion button 232, the expansion button 232 is disposed opposite to the second through hole 2142 of the connecting member 21, and the expansion button 232 corresponds to the head end 151 of the operating lever 15. By pressing the expand button 232, the dial 10 will automatically expand.

The side of the bottom 237 of the enclosing body 23 is provided with a switch button 234 corresponding to the power switch 40 of the support sheet 22. By pressing the switch button 234, the dial 10 will be turned on or off.

The enclosure 23 is further provided with a sound outlet hole 235 corresponding to the speaker 24. The sound emitted from the speaker 24 is emitted through the sound emitting hole 235.

The free end of the bottom 237 of the wrap 23 is provided with a tail portion 2371, and the tail portion 2371 is used for wrapping the strap 26.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the scope of the present application is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present application disclosed herein are intended to be included within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (20)

1. A wrist strap is connected with a dial plate of an intelligent wrist strap and is characterized in that a battery module is arranged in the wrist strap and supplies power to the dial plate, one end of the wrist strap is connected to the dial plate, and the battery module is arranged opposite to the dial plate;

the dial plate comprises a frame assembly, a supporting assembly and a screen assembly, wherein the supporting assembly is mounted at the top end of the frame assembly and used for supporting the screen assembly, and the frame assembly can stretch and retract to drive the supporting assembly and the screen assembly to change in size, so that the size of the dial plate is expanded;

the supporting component comprises a left supporting frame, a right supporting frame and a bracket; the bracket comprises a bracket body and a base; the base is connected to the frame body, is positioned outside the containing space of the frame assembly and extends into the wrist strap; the left support frame and the right support frame are respectively positioned on two sides of the frame body of the bracket; the left support frame comprises a first base body, a pair of first side plates, a first bottom plate and a first tooth part; the right supporting frame comprises a second base body, a second tooth part and a pair of lugs; the first tooth part and the second tooth part form a flat plane together, so that the touch feeling of the screen assembly on the flat plane is ensured;

the frame assembly comprises a left frame, a right frame and a telescopic assembly;

the telescopic assembly comprises a rod assembly and an elastic element, wherein the rod assembly comprises at least two connecting rods; the elastic element is elastically connected with the at least two connecting rods of the rod assembly;

the frame assembly further comprises a first connecting sheet, one end of the first connecting sheet is connected with the rod assembly, the other end of the first connecting sheet extends out of the frame assembly, and the first connecting sheet is matched with an operating rod to lock the rod assembly in a contraction state;

the first connecting piece comprises a fixing part, a connecting part and a main body, and the main body extends out of the frame assembly; a main body clamping groove is formed in one edge of the main body; the connecting part is vertically connected between the fixing part and the main body; one end of the main body, which is far away from the connecting part, comprises a first inclined plane;

the operating rod comprises a head end and a tail end which are arranged oppositely, and a bottom surface and a matching surface which are connected between the head end and the tail end, and a buckle part is arranged on the matching surface; the buckling part of the operating lever has the same shape as the main body clamping groove of the first connecting sheet, and the buckling part is accommodated in the main body clamping groove to lock the position of the first connecting sheet.

2. The wristband of claim 1 wherein the wristband includes a connector and a support sheet, the support sheet including a support sheet top end, a support sheet bottom end, and a curved segment connected between the support sheet top end and the support sheet bottom end; the connecting piece is connected to the top end of the supporting sheet and is used for connecting the supporting sheet to the dial plate; the battery module is fixed to the bottom end of the support sheet.

3. The wristband of claim 2, wherein the battery module comprises a bottom frame and a top cover, wherein an inner cavity for accommodating the battery is formed in the bottom frame, and the top cover covers the bottom frame to shield the battery in the bottom frame.

4. The wristband as recited in claim 3, wherein a surface of a bottom end of the support piece protrudes to form a bezel, the bottom frame is integrally formed on the support piece, and the bezel is inserted into the bottom frame.

5. The wristband as recited in claim 3, further comprising a support sheet FPC attached to the support sheet, and a power switch provided on the support sheet FPC.

6. The wristband as recited in claim 5, wherein the support sheet FPC extends from the support sheet bottom end to the support sheet top end, the support sheet FPC forming a flap at the support sheet bottom end location, the flap being fixed to the bottom frame, the power switch being disposed on the flap.

7. The wristband of claim 6, further comprising a support spring abutting the side flap of the support sheet FPC to support the rebound of the power switch.

8. The wristband of claim 7 wherein the support tab and the side wing supporting the FPC together enclose the battery.

9. The wristband of claim 7 wherein said support tab includes a pair of opposing abutments and a second tab connected between said pair of abutments, said bottom frame having a first aperture in a side wall thereof, said wing passing through said first aperture and abutting one of said abutments.

10. The wristband as claimed in claim 5, wherein the support piece FPC and the battery module are respectively located on opposite sides of the support piece, and the support piece FPC penetrates through a through hole formed in a bottom end of the support piece and is connected to the battery module.

11. The wristband as recited in any one of claims 5 to 10, wherein the connecting member includes an end face, a bottom face, a top face, and a first side face and a second side face connected therebetween, the first side face and the second side face being disposed opposite to each other, the end face being adapted to be coupled to the dial and being provided with a first opening, the top face being provided with a second opening communicating with the first opening, the bottom face being adapted to be connected to the support piece.

12. The wristband of claim 11 wherein said first side has a second aperture in communication with said first opening, said second aperture providing for the passage of a head end of a lever controlling said dial.

13. The wristband as recited in claim 12 wherein said top surface further defines a third opening, said third opening facing said bottom surface, one side of said top end of said support piece defining an electronic device, said electronic device being received in said third opening.

14. The wristband as recited in claim 13, further comprising an enclosure for enclosing said connecting member and said support sheet, said enclosure being a flexible material.

15. The wristband as recited in claim 14, wherein a top of the enclosure is provided with a receiving space for receiving the connector; the inclusion comprises a home button and an expansion button, the home button is opposite to the second opening, and the expansion button is opposite to the second perforation.

16. The wristband of claim 15 wherein said enclosure further defines a sound outlet, said electronics including a speaker, said sound outlet being disposed opposite said speaker.

17. The wristband as recited in claim 14, wherein the enclosure is provided with a switch button disposed opposite the power switch.

18. The wristband as recited in claim 14, further comprising a strap, a bottom end of the support sheet being connected to the strap, the strap being stronger than the support sheet, the wrap enveloping the strap, the strap being used to shape the wrap.

19. The wristband as recited in claim 18 wherein said strap is formed of a deformable stainless steel sheet and said support sheet is formed of an elastic manganese steel sheet.

20. Smart bracelet, characterized in that it comprises a dial and a wristband according to any one of claims 1 to 19, said wristband being connected to said dial.

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