CN218571783U - Linear motion mechanism, linear motion assembly, drawer assembly and storage cabinet - Google Patents

Abstract

The utility model relates to a mechanical structure technical field provides a linear motion mechanism, linear motion subassembly, drawer subassembly and locker. The linear motion mechanism comprises a rotating wheel, a mounting piece, a primary sliding rail, a flexible cable and a tensioning mechanism, and the rotating wheel is suitable for rotating along a preset axis; the mounting piece is provided with a guide rail and is provided with a first fixed pulley; the primary slide rail is connected with the guide rail in a sliding manner; the flexible cable comprises a first flexible cable section and a second flexible cable section, the first flexible cable section winds around the first fixed pulley and is connected to the primary sliding rail, one of the first flexible cable section and the second flexible cable section is suitable for being wound on the rotating wheel along with the rotation of the rotating wheel, and the other one of the first flexible cable section and the second flexible cable section is suitable for being unwound from the rotating wheel along with the rotation of the rotating wheel; at least one of the first flexible cable section and the second flexible cable section is connected with the primary slide rail through a tensioning mechanism. The utility model provides a linear motion mechanism carries out the tensioning through straining device to the flexible cable and adjusts, and simple structure can promote transmission stability.

Description

Linear motion mechanism, linear motion assembly, drawer assembly and storage cabinet

Technical Field

The utility model relates to a mechanical structure technical field especially relates to linear motion mechanism, linear motion subassembly, drawer subassembly and locker.

Background

In industrial and household products, linear motion mechanisms are used in many products. For example, in the case of a refrigerator, in order to realize linear motion of a drawer body (or a shelf) relative to a refrigerator body so that the drawer body is extended out of the refrigerator body or retracted into the refrigerator body (or the shelf is moved up and down in the refrigerator body), a linear motion mechanism needs to be installed between the drawer body (or the shelf) and the refrigerator body.

Linear motion mechanism among the correlation technique can adopt flexible cable and drive wheel complex mode to carry out the transmission, and the flexible cable can relax and influence the transmission effect in long-term use, is difficult to guarantee linear motion mechanism steady operation.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least one of the technical problems existing in the related art. Therefore, the utility model provides a linear motion mechanism carries out the tensioning to the flexible cable through straining device, and simple structure can promote transmission stability.

The utility model discloses still provide a linear motion subassembly.

The utility model discloses still provide a drawer assembly.

The utility model also provides a locker.

According to the utility model discloses linear motion mechanism of first aspect embodiment includes:

the rotating wheel is suitable for rotating along a preset axis;

the mounting piece is provided with a guide rail and is provided with a first fixed pulley;

the primary slide rail is connected with the guide rail in a sliding manner;

the flexible cable comprises a first flexible cable section and a second flexible cable section which are arranged opposite to the primary slide rail, the first flexible cable section bypasses the first fixed pulley and is connected with the primary slide rail, one of the first flexible cable section and the second flexible cable section is suitable for being wound on the rotating wheel along with the rotation of the rotating wheel, and the other one of the first flexible cable section and the second flexible cable section is suitable for being wound on the rotating wheel along with the rotation of the rotating wheel and releasing the winding of the rotating wheel;

and at least one of the first flexible cable section and the second flexible cable section is connected with the primary sliding rail through the tensioning mechanism.

According to the utility model discloses linear motion mechanism, including swiveling wheel, installed part, one-level slide rail, flexible cable and straining device, the flexible cable is convoluteed in the swiveling wheel, and in the swiveling wheel rotation process, one of first flexible cable section and second flexible cable section is to the swiveling wheel coiling, and the coiling is relieved to another one to stimulate one-level slide rail to move along the guide rail of installed part, realize the linear motion of one-level slide rail; in the process of linear motion of the first-level slide rail, the first flexible cable section and the second flexible cable section are subjected to the action of pulling force for a long time and can be loosened, at least one of the first flexible cable section and the second flexible cable section is connected to the end part of the first-level slide rail through a tensioning mechanism, so that the end part of at least one of the first flexible cable section and the second flexible cable section is connected to the first-level slide rail through the tensioning mechanism and is tensioned and adjusted, the connection mode of at least one of the first flexible cable section and the second flexible cable section and the first-level slide rail is simple and convenient, the structure is simple, the tensioning and adjusting effect is good, and the motion stability of the first-level slide rail is improved.

According to an embodiment of the present invention, the tensioning mechanism includes a first wheel body and a first clamping jaw, the first wheel body is adapted to move along a first direction and is connected to the first flexible cable section, so that the first flexible cable section moves along with the first wheel body, one end of the first clamping jaw is limited to the first wheel body to stop the first wheel body in a second direction, the other end of the first clamping jaw is connected to the primary slide rail, and the first direction is opposite to the second direction;

and/or the tensioning mechanism comprises a second wheel body and a second clamping jaw, the second wheel body is suitable for moving along the second direction and is connected with the second flexible cable section, so that the second flexible cable section moves along with the second wheel body, one end of the second clamping jaw is limited in the second wheel body so as to stop the second wheel body in the first direction, and the other end of the second clamping jaw is connected with the primary slide rail.

According to an embodiment of the present invention, the first wheel body is adapted to rotate along a first direction, a first groove is disposed on an inner circumference or an outer circumference of the first wheel body, the first jaw is limited on the first groove, and the first flexible cable section is adapted to be wound around the first wheel body along the first direction;

and/or the second wheel body is suitable for moving along a second direction, a second groove body is arranged on the inner periphery or the outer periphery of the second wheel body, the second clamping jaws are limited in the second groove body, and the second flexible cable section is suitable for being wound around the second wheel body along the second direction.

According to an embodiment of the present invention, the first pulley body includes a first connecting portion, a first winding portion and a first blocking portion, the first connecting portion is connected to the first-level slide rail, the first winding portion is located between the first connecting portion and the first blocking portion, the first winding portion is used for winding the first flexible cable section, and the first flexible cable section is limited at one side of the first blocking portion facing the first winding portion;

and/or, the second wheel body includes second connecting portion, second wire winding portion and second and separates fender portion, the second connecting portion connect in the one-level slide rail, second wire winding position in the second connecting portion with the second separates between the fender portion, second wire winding portion is used for the coiling the second flexible cable section, the second flexible cable section is spacing in the second separates the fender portion orientation one side of second wire winding portion.

According to an embodiment of the present invention, the first wheel body includes a first clamping portion, the first clamping portion is located between the first connecting portion and the first blocking portion, and the first groove body is disposed on an outer periphery of the first clamping portion;

and/or, the second wheel body includes second joint portion, second joint portion is located the second connecting portion with the second separates between the fender portion, the periphery of second joint portion is provided with the second cell body.

According to an embodiment of the present invention, the first wheel body is provided with a first wire clamping groove, and an end of the first flexible cable section is limited in the first wire clamping groove;

and/or the second wheel body is provided with a second wire clamping groove, and the end part of the second flexible cable section is limited in the second wire clamping groove.

According to the utility model discloses an embodiment, the first card wire casing includes first slot part and the second slot part that is linked together, the first slot part is located the first baffle part, the second slot part is located the first wire winding portion, the part of second slot part is misplaced with the first slot part;

and/or the second wire clamping groove comprises a third groove part and a fourth groove part which are communicated, the third groove part is positioned on the second partition part, the fourth groove part is positioned on the second wire winding part, and the fourth groove part is staggered with the third groove part.

According to an embodiment of the present invention, the first wheel body is provided with a first mounting hole for mounting a rotation driving tool;

and/or the second wheel body is provided with a second mounting hole for mounting a rotary driving tool.

According to the utility model discloses an embodiment, the one-level slide rail through a plurality of middle slide rails install in the guide rail, middle slide rail is provided with the movable pulley, first flexible cable section is walked around in proper order first fixed pulley with the movable pulley.

According to an embodiment of the present invention, the intermediate slide rail is a second-stage slide rail, the second-stage slide rail is slidably connected between the guide rail and the first-stage slide rail, the second-stage slide rail is adapted to slide reciprocally relative to the guide rail, and the first-stage slide rail is adapted to slide reciprocally relative to the second-stage slide rail;

the movable pulley includes first movable pulley and second movable pulley, first movable pulley with the second movable pulley is located the both ends of second grade slide rail, first movable pulley is located keeps away from the one end of first fixed pulley, first flexible cable section is walked around in proper order first fixed pulley first movable pulley with the second movable pulley.

According to the utility model discloses linear motion subassembly of second aspect embodiment, including rotary driving spare and at least two as above linear motion mechanism, the swiveling wheel passes through synchronizing bar fixed connection, rotary driving spare is used for the drive swiveling wheel and synchronizing bar rotate.

According to the utility model discloses linear motion mechanism, including rotary driving piece and two at least linear motion mechanisms, rotary driving piece connects the swiveling wheel of one of them to this swiveling wheel of drive rotates, and this swiveling wheel passes through synchronizing bar fixed connection with other swiveling wheels, in order to transmit drive power to other swiveling wheels, realizes a plurality of linear motion mechanisms's synchronous motion, simple structure and easy and simple to handle.

According to the utility model discloses an embodiment, swiveling wheel connect in installed part, two the linear motion mechanism symmetry set up in the synchronizing bar both sides.

According to the utility model discloses drawer assembly of third aspect embodiment, including the drawer body, still include as above linear motion mechanism, or, as above linear motion subassembly, drawer body coupling in the one-level slide rail.

According to the utility model discloses drawer assembly, including drawer body and linear motion mechanism, linear motion mechanism's motion stability can promote for the motion of drawer body is more stable.

According to the utility model discloses locker of fourth aspect embodiment, include the box and be located drawer body and/or shelf in the box still include as above rectilinear motion mechanism, or, as above rectilinear motion subassembly, drawer body and/or shelf connect in the one-level slide rail, the installed part is fixed in the box.

According to the utility model discloses locker, including the box and be arranged in drawer body and the at least one of shelf in the box, linear motion mechanism is connected to at least one in drawer body and the shelf, and linear motion mechanism's motion stability can promote for connect in the motion of linear motion mechanism drawer body and shelf more stable, the performance of locker can promote.

According to the utility model discloses an embodiment, the one-level slide rail with the installed part along the direction of height of locker sets gradually, the one-level slide rail with the wallboard of drawer body perhaps the wallboard of shelf is fixed.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

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

Fig. 1 is a schematic structural view of a linear motion mechanism according to an embodiment of the present invention, illustrating a state where neither a primary slide rail nor a secondary slide rail extends;

fig. 2 is a schematic structural view of the linear motion mechanism according to the embodiment of the present invention, illustrating a state where the first-stage slide rail and the second-stage slide rail are both extended;

fig. 3 is a schematic structural diagram of a tensioning mechanism provided by an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a tensioning mechanism provided by the embodiment of the present invention, which is different from fig. 3 in that the viewing angle of fig. 4 is close to a top view;

fig. 5 is a schematic structural diagram of a connection relationship between a tensioning mechanism and a flexible cable according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a connection relationship between a tensioning mechanism and a flexible cable according to an embodiment of the present invention, which is different from fig. 5 in that the viewing angle of fig. 6 is closer to a top view;

fig. 7 is a schematic structural view of the linear motion assembly according to the embodiment of the present invention, which illustrates a state where neither the first-stage slide rail nor the second-stage slide rail is extended;

fig. 8 is a schematic structural view of the linear motion assembly according to the embodiment of the present invention, which illustrates a state where the first-stage slide rail and the second-stage slide rail are both extended;

reference numerals:

100. a rotating wheel;

200. a mounting member; 210. a guide rail; 220. a first fixed pulley;

300. a first-stage slide rail;

400. a flexible cable; 410. a first wire segment; 420. a second wire section;

500. a tensioning mechanism; 510. a first wheel body; 511. a first tank body; 512. a first connection portion; 513. a first winding part; 514. a first barrier portion; 515. a first clamping part; 516. a first wire clamping groove; 5161. a first groove portion; 5162. a second groove portion; 517. a first mounting hole; 520. a first jaw; 530. a second wheel body; 531. a second tank body; 532. a second connecting portion; 533. a second winding portion; 534. a second barrier portion; 535. a second clamping part; 536. a second wire clamping groove; 5361. a third groove portion; 5362. a fourth groove portion; 537. a second mounting hole; 540. a second jaw; 550. a connecting plate;

600. a secondary slide rail; 610. a first movable pulley; 620. a second movable pulley;

700. a synchronization rod.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, the terms "plurality", and "plural" mean two or more unless otherwise specified.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

An embodiment of the first aspect of the present invention, as shown in fig. 1 to 8, provides a linear motion mechanism, including: the rotary wheel 100, the mounting part 200, the primary slide rail 300, the flexible cable 400 and the tensioning mechanism 500; the rotating wheel 100 may be connected to a rotating driver for driving the rotating wheel 100 to rotate along a predetermined axis; the mounting member 200 is provided with a guide rail 210, and the mounting member 200 is mounted with a first fixed pulley 220; the primary slide rail 300 is slidably connected to the guide rail 210; the cable 400 comprises a first cable section 410 and a second cable section 420 which are arranged opposite to the primary sliding rail 300, the first cable section 410 is wound around the first fixed pulley 220 and connected to the primary sliding rail 300, one of the first cable section 410 and the second cable section 420 is suitable for being wound on the rotating wheel 100 along with the rotation of the rotating wheel 100, and the other one of the first cable section 410 and the second cable section 420 is suitable for being unwound from the rotating wheel 100 along with the rotation of the rotating wheel 100; at least one of the first wire segment 410 and the second wire segment 420 is connected to the primary slide rail 300 via the tensioning mechanism 500.

A rotary driving member (the rotary driving member may be regarded as a component independent of the linear motion mechanism, or a part of the linear transmission mechanism) is connected to the rotary wheel 100 to drive the rotary wheel 100 to rotate, the rotary wheel 100 is wound with a wire 400, the wire 400 is adapted to move with the rotation of the rotary wheel 100, and the wire 400 includes a first wire section 410 led out from one side of the rotary wheel 100 and a second wire section 420 led out from the other side of the rotary wheel 100; during the rotation of the rotator wheel 100, one of the first and second wire sections 410 and 420 may be driven to wind the rotator wheel 100, and the other of the first and second wire sections 410 and 420 may be unwound from the rotator wheel 100. The mounting member 200 is provided with a guide rail 210, and the first cable section 410 and the second cable section 420 are driven to move relative to the rotating wheel 100 by the rotational driving force of the rotational driving member, so that the first cable section 410 and the second cable section 420 cooperate to drive the primary sliding rail 300 to slide relative to the guide rail 210. The first fixing pulley 220 is installed on the installation component 200, and the first flexible cable section 410 is wound around the first fixing pulley 220, so that the extending direction of the first flexible cable section 410 is changed by the first fixing pulley 220, and one ends of the first flexible cable section 410 and the second flexible cable section 420 connected to the primary sliding rail 300 extend in the opposite directions, so that the rotation driving force of the rotation driving member is converted into the sliding power of the primary sliding rail 300 by the flexible cable 400. The tensioning device is used for adjusting the tensioning degree of at least one of the first flexible cable section 410 and the second flexible cable section 420, and the tensioning degree of the first flexible cable section 410 and the second flexible cable section 420 can be adjusted in time, so that the motion stability of the first-stage sliding rail 300 is improved.

Here, the wire 400 is connected to the first-stage sliding rail 300 through the tensioning mechanism 500, it is understood that at least one of the first wire section 410 and the second wire section 420 can be tensioned and adjusted, when the first wire section 410 and the second wire section 420 are both connected to the tensioning mechanism 500, the first-stage sliding rail 300 is connected to two tensioning mechanisms 500, one tensioning mechanism (hereinafter, referred to as a first tensioning mechanism) independently adjusts the tensioning degree of the first wire section 410, and the other tensioning mechanism 500 (hereinafter, referred to as a second tensioning mechanism) independently adjusts the tensioning degree of the second wire section 420. A first tensioning mechanism may be attached at or near the end of the first wire segment 410 and a second tensioning mechanism may be attached at or near the end of the second wire segment 420.

With the rotation direction of the rotating wheel 100 being different, the primary sliding rail 300 makes different directions of linear motion relative to the guide rail 210, that is, the primary sliding rail 300 extends to one side of the guide rail 210, and the primary sliding rail 300 returns to the initial position before extending. As shown in fig. 1 to 2, when the rotating wheel 100 rotates counterclockwise, the first cable segment 410 is wound around the rotating wheel 100, and the second cable segment 420 is unwound from the rotating wheel 100, the cable 400 drives the primary sliding rail 300 to move towards the left in fig. 1 with respect to the guide rail 210, and the primary sliding rail 300 extends with respect to the guide rail 210; as shown in fig. 2 to 1, when the rotating wheel 100 rotates clockwise, the first cable section 410 is unwound from the rotating wheel 100, and the second cable section 420 is wound around the rotating wheel 100, the cable 400 drives the primary sliding rail 300 to move towards the right side in fig. 2 relative to the guide rail 210, and the primary sliding rail 300 returns to the initial position before extending, which may be a position of the primary sliding rail 300 corresponding to the upper and lower sides of the guide rail.

It is worth mentioning that the linear motion mechanism is intended to move exactly or approximately linearly with respect to a point on the mechanism. That is, the motion of the linear motion mechanism herein includes making an approximately linear motion. In addition, for the first fixed pulley 220, the movement of the flexible cable 400 only drives the first fixed pulley 220 to rotate, and does not drive the first fixed pulley 220 to change the spatial position.

Wherein the form of the guide rail 210 is not limited. When the first-stage sliding rail 300 is directly mounted on the guide rail 210, the guide rail 210 only needs to guide the first-stage sliding rail 300. For example, the guide rail 210 may include a guide groove, and the primary slide rail 300 may move along an extending direction of the guide groove; alternatively, the guide rail 210 may include a guide protrusion, and the primary slide rail 300 may move along an extension direction of the guide protrusion. The guide rail 210 may be integrally formed with the mounting member 200, or may be a separate member fixed to the mounting member 200.

Similarly, the structural form of the primary sliding rail 300 is not limited, as long as the primary sliding rail 300 can form a guiding fit with the guide rail 210, so that the primary sliding rail 300 can make a linear or approximately linear motion relative to the guide rail 210. For example, the primary sliding rail 300 and the guide rail 210 may be engaged with each other through a protrusion and a groove, or a sliding member, such as a pulley, may be installed between the sliding rail and the guide rail 210, and then the primary sliding rail 300 and the guide rail 210 are engaged with each other through the sliding member.

The linear motion mechanism of this embodiment can provide linear motion, only needs to set up swiveling wheel 100 and pulley (including the fixed pulley, can also include the movable pulley, wherein, under the circumstances that does not have special limitation, the fixed pulley sets up first fixed pulley 220 at least), and then its occupation space is little and simple structure, need not to improve linear motion mechanism's preparation cost by a wide margin. In addition, since only the rotary wheel 100, the slide rail, and the pulley are attached and detached, the attachment and detachment are also convenient.

The linear motion mechanism of this embodiment can drive the rotating wheel 100 to rotate through the rotating driving member, and the rotating wheel 100 drives the flexible cable 400 to move, on this basis, because the first flexible cable section 410 bypasses the first fixed pulley 220, and the first flexible cable section 410 and the second flexible cable section 420 are both connected to the first-stage sliding rail 300, so that the flexible cable 400 drives the first-stage sliding rail 300 to make linear motion relative to the guide rail 210, and the tensioning degree of at least one of the first flexible cable section 410 and the second flexible cable section 420 is adjusted through the tensioning mechanism 500, thereby ensuring accurate and stable transmission of the first flexible cable section 410 and the second flexible cable section 420, and solving the problem of the flexible cable 400 being loose due to long-term use. The linear motion mechanism can be applied to various occasions needing linear driving acting force, such as drawing of a drawer, lifting of a shelf and the like, one driven part can be connected with one or more linear motion mechanisms, when one driven part is synchronously controlled by the plurality of linear motion mechanisms, synchronous motion of the plurality of linear motion mechanisms needs to be ensured, but when the flexible cable 400 is loosened, synchronous motion of the plurality of linear motion mechanisms is difficult to ensure, the tensioning mechanism 500 is arranged in the embodiment, the tensioning degree of the flexible cable 400 can be adjusted, synchronous motion of the plurality of linear motion mechanisms is ensured, and the motion stability of the driven part is improved.

The first tensioning mechanism and the second tensioning mechanism may be the same or different, and the first tensioning mechanism will be described first, with reference to fig. 1 to 6, and the first tensioning mechanism and the second tensioning mechanism will be described separately.

It is understood that, referring to fig. 3 to 6, the first tensioning mechanism includes a first wheel body 510 and a first clamping jaw 520, the first wheel body 510 is adapted to move along a first direction and is connected to the first flexible cable section 410, so that the first flexible cable section 410 moves along with the first wheel body 510, one end of the first clamping jaw 520 is limited to the first wheel body 510 to stop the first wheel body 510 in a second direction, and the other end of the first clamping jaw 520 is connected to the primary sliding rail 300, and the first direction is opposite to the second direction. The first wheel 510 may move in the first direction, which may be a rotation direction or a movement direction of the first wheel 510 relative to the primary sliding rail 300, and the first cable segment 410 moves with the first wheel 510 relative to the primary sliding rail 300, and the tension degree of the first cable segment 410 may be adjusted by rotating, winding, or moving and tightening the first cable segment. The first claws 520 play a role in limiting and stopping the first wheel body 510 along the second direction, and the first claws 520 can play a role in preventing the first wheel body 510 from rotating or moving along the second direction so as to ensure that the first flexible cable section 410 can be tensioned without loosening.

One end of the first claw 520 is engaged with the first wheel 510 for limitation, and the other end is fixed to the first-stage slide rail 300. When the first wheel body 510 is rotatably connected to the primary slide rail 300, the first direction is counterclockwise, and the second direction is clockwise, the first claws 520 prevent the first wheel body 510 from rotating clockwise; when the first wheel 510 is movably connected to the first-stage sliding rail 300, the first direction is a direction away from the first fixed pulley 220, and the second direction is a direction close to the first fixed pulley 220, the first claws 520 prevent the first wheel 510 from moving towards the direction close to the first fixed pulley 220, so as to extend a path from the rotating wheel 100 to the first wheel 510, and to tension the first flexible cable section 410.

It can be understood that the first wheel body 510 is suitable for rotating in a first direction, the first wheel body 510 is provided with a first slot 511 on the inner circumference or the outer circumference, the first claws 520 are limited in the first slot 511, that is, the first claws 520 are limited in the outer ring or the inner ring of the first wheel body 510, and the positions of the first claws 520 are flexible. The end portion of the first cable segment 410 is adapted to be wound around the first pulley body 510, and during the rotation of the first pulley body 510 in the first direction, the first cable segment 410 is wound around the first pulley body 510 to play a role of tensioning the first cable segment 410. The first pulley body 510 rotates relative to the first-stage slide rail 300, so that the first flexible cable section 410 is tensioned, and the first-stage slide rail is simple in structure, easy and convenient to adjust and disassemble.

With the rotation of the first wheel body 510, the first claws 520 may be switched from one first groove 511 to another first groove 511 by elastic deformation of the first claws 520, or the first claws 520 may be switched from one first groove 511 to another first groove 511 by external force, such as the tensile force of a spring. When one end of the first claw 520 is limited in the first groove 511 and the other end is fixed on the first-stage slide rail 300, the first claw 520 may further be provided with a first rotating portion rotatably connected to the first-stage slide rail 300, and when the position of one end of the first claw 520 is adjusted, the first rotating portion supports the first claw 520.

For example, the first wheel body 510 is provided with a first mounting hole 517 for mounting the rotational driving tool, and the rotational driving tool is mounted in the first mounting hole 517, so that the first wheel body 510 can be rotationally adjusted, and the first wheel body 510 and the primary slide rail 300 can be fixed without providing rotational driving force by the rotational driving tool. The rotary drive tool may be a wrench. Of course, the first pulley 510 is not limited to being driven to rotate by a rotation driving tool, and the first pulley 510 may also be driven by a rotation motor, wherein the rotation motor drives the first pulley 510 to rotate in the first direction when the first flexible cable segment 410 needs to be tensioned, and the rotation motor can also prevent the first pulley 510 from rotating when the first flexible cable segment 410 does not need to be adjusted.

It can be understood that, referring to fig. 3 to 6, the first wheel body 510 includes a first connection portion 512, a first winding portion 513 and a first blocking portion 514, the first connection portion 512 is connected to the first-stage slide rail 300, the first winding portion 513 is located between the first connection portion 512 and the first blocking portion 514, the first winding portion 513 is used for winding the first flexible cable segment 410, and the first flexible cable segment 410 is limited on one side of the first blocking portion 514 facing the first winding portion 513. The first blocking portion 514 is located on one side of the first winding portion 513 away from the first-stage sliding rail 300, and the first flexible cable section 410 is limited between the first-stage sliding rail 300 and the first blocking portion 514, so as to prevent the first flexible cable section 410 from being separated from the first wheel 510, and ensure that the first flexible cable section 410 is stably wound around the first wheel 510, so as to ensure that the first flexible cable section 410 is stably maintained in a tensioned state.

As shown in fig. 3 and 4, the first connecting portion 512 is rotatably connected to the first-stage slide rail 300, and is provided with a first connecting portion 512, a first winding portion 513 and a first blocking portion 514 along the direction of the rotation axis of the first wheel body 510, the first slot 511 may be disposed between the first connecting portion 512 and the first blocking portion 514, or the first slot 511 may be located on an inner periphery corresponding to at least one of the first connecting portion 512, the first winding portion 513 and the first blocking portion 514, and the position of the first slot 511 is flexible and various and can be selected as required. The first winding portion 513 may be a cylindrical structure, such as a cylinder, a prism, etc., and the first wire section 410 may be wound around the cylindrical structure. The first blocking portion 514 protrudes relative to the first winding portion 513 in a direction perpendicular to the rotation axis of the first pulley body 510, and the first blocking portion 514 may also be understood as a flange of the first winding portion 513 to block the first cable segment 410 on the first winding portion 513, for example, the first blocking portion 514 is a disc-shaped structure with a diameter larger than that of the first winding portion 513.

It can be understood that, as shown in fig. 3 and 4, the first wheel body 510 includes a first clamping portion 515, the first clamping portion 515 is located between the first connection portion 512 and the first blocking portion 514, a first groove 511 is disposed on an outer periphery of the first clamping portion 515, the first clamping portion 515 is located on an outer periphery of the first wheel body 510, the first clamping portion 515 may be located between the first winding portion 513 and the first blocking portion 514, or the first clamping portion 515 may also be located between the first winding portion 513 and the first connection portion 512, which may be specifically selected as needed. The first clamping portion 515 is a portion of the first wheel body 510, and the first claw 520 is located at any position of the outer periphery of the first clamping portion 515, so that the position of the first claw 520 is more flexible, and the first claw is convenient to disassemble and assemble.

As shown in fig. 3, the first clamping portion 515 is located between the first winding portion 513 and the first connection portion 512, so as to facilitate the installation of the first jaw 520. In this case, the first mounting hole 517 may be formed in the inner periphery of the first wheel 510, so that the first wheel 510 may have a more compact structure, which may contribute to miniaturization of the linear motion mechanism.

It can be understood that, as shown in fig. 4, the first pulley body 510 is provided with a first wire clamping groove 516, the end portion of the first cable section 410 is limited in the first wire clamping groove 516, and the first cable section 410 is connected with the first pulley body 510 through the first wire clamping groove 516, so that the connection manner is simple, the first cable section 410 is convenient to disassemble and assemble, and the first cable section 410 can be stably connected with the first pulley body 510.

It can be understood that the first wire-clamping groove 516 includes a first groove 5161 and a second groove 5162 that are communicated with each other, the first groove 5161 is located at the first blocking portion 514, the second groove 5162 is located at the first wire-winding portion 513, a partial position of the second groove 5162 corresponds to and is communicated with the first groove 5161, another portion of the second groove 5162 is offset from the first groove 5161, the first groove 5161 is a groove formed inwards along an edge of the first blocking portion 514, the structure is simple, and the first wire segment 410 is convenient to enter the second groove 5162, so as to prevent the first wire segment 410 from escaping from the first wire-clamping groove, and the structure is simple and the first wire segment 410 is convenient to disassemble and assemble with the first wheel body 510. The first cable segment 410 is limited to the first groove 5161 by knotting the ends thereof, so as to prevent the first cable segment 410 from slipping off the first groove 5161.

The first wheel body 510 and the first claw 520 of the first tensioning mechanism can be directly connected to the primary slide rail 300, so that the structure is simple, and the number of parts is small; or, the first wheel body 510 and the first claw 520 can also be connected to the first-stage slide rail 300 through the connecting plate 550, the integrity of the first tensioning mechanism is stronger, and the first tensioning mechanism can be integrally disassembled and assembled on the first-stage slide rail 300, so that the disassembly and the assembly are simple and convenient.

Next, the second tensioning mechanism will be explained.

It can be understood that, referring to fig. 1 to 6, the second tensioning mechanism includes a second wheel body 530 and a second claw 540, the second wheel body 530 is adapted to move in the second direction and is connected to the second flexible cable section 420, so that the second flexible cable section 420 moves with the second wheel body 530, one end of the second claw 540 is fixed to the second wheel body 530 to stop the second wheel body 530 in the first direction, and the other end of the second claw 540 is connected to the primary sliding rail 300. The second wheel 530 may rotate or move relative to the primary sliding rail 300 along the second direction, and the second flexible cable segment 420 moves with the second wheel 530 relative to the primary sliding rail 300, and may be tensioned by rotating or moving, so as to adjust the tensioning degree of the second flexible cable segment 420. The second claws 540 can limit and stop the second wheel body 530 along the first direction, the second claws 540 can prevent the second wheel body 530 from rotating or moving along the first direction, so as to ensure that the second flexible cable section 420 can be tensioned without being loosened reversely, and the second wheel body 530 and the second claws are simple in matching mode, simple and convenient to operate and good in tensioning effect.

One end of the second claw 540 is clamped and limited with the second wheel body 530, and the other end is fixed with the first-stage slide rail 300. When the second wheel body 530 is rotatably connected to the first-stage slide rail 300, the second direction is counterclockwise, and the first direction is clockwise, the second claws 540 prevent the second wheel body 530 from rotating clockwise; when the second wheel 530 is movably connected to the primary sliding track 300, the second direction is a direction away from the rotating wheel 100, and the first direction is a direction close to the rotating wheel 100, the second claws 540 prevent the second wheel 530 from moving close to the rotating wheel 100, so as to extend the path from the rotating wheel 100 to the second wheel 530, and thus the second flexible cable segment 420 is tensioned.

It should be noted that, the first cable section 410 and the second cable section 420 extend in opposite directions relative to the primary sliding rail 300, and during the tensioning process, the moving directions of the first cable section 410 and the second cable section 420 are opposite, and the structures of the first tensioning mechanism and the second tensioning mechanism may be the same, so as to meet the tensioning requirements of the first cable section 410 and the second cable section 420.

It can be understood that the second wheel body 530 is adapted to rotate along the second direction, the inner circumference or the outer circumference of the second wheel body 530 is provided with a second groove 531, the second claws 540 are limited in the second groove 531, that is, the second claws 540 are limited in the outer ring or the inner ring of the second wheel body 530, and the positions of the second claws 540 are flexible. The end portion of the second cable segment 420 is adapted to be wound around the second pulley body 530, and during the rotation of the second pulley body 530 in the second direction, the second cable segment 420 is wound around the second pulley body 530 to play a role of tensioning the second cable segment 420. The second wheel body 530 rotates relative to the first-stage slide rail 300, the tensioning of the second flexible cable section 420 is realized, the structure is simple, the adjustment is simple and convenient, and the disassembly and the assembly are convenient.

With the rotation of the second wheel 530, the second claws 540 may be switched from one second groove 531 to another second groove 531 under the elastic deformation of the second claws 540, or the second claws 540 may be switched from one second groove 531 to another second groove 531 under the external force, for example, the tensile force of a spring. When one end of the second jaw 540 is limited in the second groove 531 and the other end is fixed to the first-stage slide rail 300, the second jaw 540 may further be provided with a second rotating portion rotatably connected to the first-stage slide rail 300, and when the position of one end of the second jaw 540 is adjusted, the second rotating portion supports the second jaw 540.

For example, the second wheel 530 is provided with a second mounting hole 537 for mounting the rotational driving tool, and the rotational driving tool is mounted in the second mounting hole 537, so that the second wheel 530 can be rotationally adjusted, and the second wheel 530 and the primary slide rail 300 can be fixed without providing rotational driving force by the rotational driving tool. The rotary drive tool may be a wrench. Of course, the second pulley 530 is not limited to be driven to rotate by a rotation driving tool, and the second pulley 530 may also be driven by a rotation motor, the rotation motor drives the second pulley 530 to rotate in the second direction when the second flexible cable segment 420 needs to be tensioned, and the rotation motor can also prevent the second pulley 530 from rotating when the second flexible cable segment 420 does not need to be adjusted.

It can be understood that, referring to fig. 3 to fig. 6, the second wheel body 530 includes a second connection portion 532, a second winding portion 533 and a second blocking portion 534, the second connection portion 532 is connected to the primary slide rail 300, the second winding portion 533 is located between the second connection portion 532 and the second blocking portion 534, the second winding portion 533 is used for winding the second flexible cable segment 420, and the second flexible cable segment 420 is limited on a side of the second blocking portion 534 facing the second winding portion 533. The second blocking portion 534 is located on a side of the second winding portion 533 far away from the first-stage slide rail 300, and the second flexible cable segment 420 is limited between the first-stage slide rail 300 and the second blocking portion 534, so as to prevent the second flexible cable segment 420 from separating from the second wheel 530, and ensure that the second flexible cable segment 420 is stably wound on the second wheel 530, so as to ensure that the second flexible cable segment 420 is stably maintained in a tensioned state.

As shown in fig. 3 and 4, the second connecting portion 532 is rotatably connected to the primary sliding rail 300, and is provided with a second connecting portion 532, a second winding portion 533 and a second blocking portion 534 along the direction of the rotation axis of the second wheel 530, the second slot 531 may be disposed between the second connecting portion 532 and the second blocking portion 534, or the second slot 531 may be disposed on an inner periphery of at least one of the second connecting portion 532, the second winding portion 533 and the second blocking portion 534, and the position of the second slot 531 is flexible and various and can be selected as needed. The second winding portion 533 may be a cylindrical structure, such as a cylinder, a prism, etc., and the second wire segment 420 may be wound around the cylindrical structure. The second blocking portion 534 protrudes relative to the second winding portion 533 in a direction perpendicular to the rotation axis of the second wheel body 530, and the second blocking portion 534 can be understood as a flange of the second winding portion 533 to block the second flexible cable segment 420 at the second winding portion 533, for example, the second blocking portion 534 is a disk-shaped structure with a diameter larger than that of the second winding portion 533.

It can be understood that the second wheel body 530 comprises a second clamping portion 535, the second clamping portion 535 is located between the second connecting portion 532 and the second blocking portion 534, and the outer periphery of the second clamping portion 535 is provided with a second groove 531. The second clamping portion 535 is located at the outer periphery of the second wheel 530, and the second clamping portion 535 may be located between the second winding portion 533 and the second blocking portion 534, or the second clamping portion 535 may also be located between the second winding portion 533 and the second connecting portion 532, which may be selected as required. The second clamping portion 535 is a part of the second wheel body 530, and the first claw 520 is located at any position of the outer periphery of the first clamping portion 515, so that the position of the second claw 540 is more flexible and the disassembly and assembly are convenient.

As shown in fig. 3, the second catching portion 535 is located between the second winding portion 533 and the second connecting portion 532, facilitating the installation of the second jaw 540. In this case, the second wheel 530 may have a second mounting hole 537 formed in an inner periphery thereof, so that the second wheel 530 may have a more compact structure, which may contribute to downsizing of the linear motion mechanism.

It can be understood that, as shown in fig. 4, the second wheel body 530 is provided with a second wire clamping groove 536, an end portion of the second cable section 420 is limited in the second wire clamping groove 536, and the second cable section 420 is connected to the second wheel body 530 through the second wire clamping groove 536, which is simple in connection manner, facilitates the detachment and installation of the second cable section 420, and can ensure that the second cable section 420 is stably connected to the second wheel body 530.

It can be understood that the second wire-clamping groove 536 includes a third groove portion 5361 and a fourth groove portion 5362 which are communicated with each other, the third groove portion 5361 is located at the second blocking portion 534, the fourth groove portion 5362 is located at the second wire-winding portion 533, a partial position of the fourth groove portion 5362 corresponds to and is communicated with the third groove portion 5361, another portion of the fourth groove portion 5362 is offset with the third groove portion 5361, the third groove portion 5361 is a groove body formed by inward recessing along an edge of the second blocking portion 534, the structure is simple, and the second flexible cable segment 420 can be conveniently inserted into the fourth groove portion 5362, so as to prevent the second flexible cable segment 420 from coming out of the second wire-clamping groove portion, and the structure is simple and the second flexible cable segment 420 can be conveniently disassembled from the second wheel body 530. The second cable segment 420 is limited in the third groove portion 5361 by knotting the end portion, so that the second cable segment 420 is prevented from slipping off the third groove portion 5361.

The second wheel body 530 and the second claws 540 of the second tensioning mechanism can be directly connected to the primary slide rail 300, so that the structure is simple and the number of parts is small; or, the second wheel body 530 and the second clamping jaws 540 may also be connected to the first-stage slide rail 300 through the connecting plate 550, and the second tensioning mechanism has stronger integrity, and can be integrally disassembled and assembled on the first-stage slide rail 300, so that the disassembly and assembly are simple and convenient.

As shown in fig. 1 to 6, the first stage slide rail 300 is simultaneously provided with the first tensioning mechanism and the second tensioning mechanism, and the tensioning degrees of the first flexible cable section 410 and the second flexible cable section 420 can be independently adjusted, so that the structure is simple and the adjustment is simple.

The first cable section 410 and the second cable section 420 may be two parts of one cable 400, or the first cable section 410 and the second cable section 420 may also be two independent cables 400, each of which has one end connected to the rotating wheel 100 and the other end connected to the first-stage sliding rail 300, and the structural forms of the first cable section 410 and the second cable section 420 may be selected as required.

The above description mainly describes the tensioning mechanism 500 of the first and second wire segments 410 and 420, and the relationship between the first-stage slide rail 300 and the mounting member 200 will be described below.

The primary slide 300 may be a separate component; the first rail 300 may be formed on a drawer, a shelf, or the like, and a portion of the drawer, the shelf, or the like to be attached to the rail 210 may be regarded as the first rail. Of course, a plurality of intermediate slide rails, such as the second-stage slide rail 600, the third-stage slide rail, etc., may also be installed between the first-stage slide rail 300 and the guide rail 210, and then the first-stage slide rail 300 is not directly installed on the guide rail 210, but is installed on the guide rail 210 through the plurality of intermediate slide rails.

At this time, the middle slide rail is provided with a movable pulley, and the flexible cable 400 passes around the first fixed pulley 220 and the movable pulley (without special limitation, the movable pulley includes a first movable pulley 610 and a second movable pulley 620 provided on the second-stage slide rail 600, or, in case of including more middle slide rails, includes a movable pulley provided on another middle slide rail), so that the first-stage slide rail 300 moves relative to the middle slide rail, and the middle slide rail moves relative to the guide rail 210. Wherein, the number of middle slide rails is not limited. When the number of the middle slide rail is one, the middle slide rail is also the second-stage slide rail 600; the number of the middle slide rails is two, and the middle slide rails comprise a second-level slide rail 600 and a third-level slide rail; the quantity of middle slide rail is three, and middle slide rail includes second grade slide rail 600, tertiary slide rail and level four slide rail this moment to analogize. When the intermediate slide rail is provided, the first-stage slide rail 300 is not directly mounted on the guide rail 210, but is mounted on the slide rail through the intermediate slide rail such as the second-stage slide rail 600 or the third-stage slide rail. The linear motion mechanism may further include a third-stage slide rail, a fourth-stage slide rail, a fifth-stage slide rail, and the like, where the number of the specific slide rails (without special limitation, the slide rail refers to at least one of the first-stage slide rail 300, the second-stage slide rail 600, the third-stage slide rail, and the like) is not limited, and may be determined according to a requirement. The first-stage slide rail 300 refers to a first slide rail which is driven to extend or retract when the rotary driving part rotates; the second-stage slide rail 600 refers to a second slide rail which is extended or contracted by the continuous movement of the rotary driving member when the first-stage slide rail 300 moves to the extreme position; the third-level slide rail refers to a third slide rail which is extended or contracted by the continuous movement of the rotary driving member when the second-level slide rail 600 moves to the limit position, and so on.

In the following, the intermediate slide rail is taken as the two-stage slide rail 600 for example: as shown in fig. 1 and 2, the secondary slide rail 600 is slidably connected between the guide rail 210 and the primary slide rail 300, the secondary slide rail 600 is adapted to slide reciprocally relative to the guide rail 210, and the primary slide rail 300 is adapted to slide reciprocally relative to the secondary slide rail 600; a first movable pulley 610 and a second movable pulley 620 are arranged on the secondary slide rail 600; the first-stage slide rail 300 is mounted on the second-stage slide rail 600 and is suitable for moving relative to the second-stage slide rail 600; the wire 400 is sequentially wound around the first fixed pulley 220, the first movable pulley 610, and the second movable pulley 620. Through setting up second grade slide rail 600, and then make linear motion mechanism can realize multistage flexible, guaranteed linear motion mechanism's flexible stroke.

When the linear motion mechanism simultaneously comprises the first-stage slide rail 300 and the second-stage slide rail 600, the linear motion mechanism can realize second-stage extension and contraction at the moment and corresponds to second-stage linear motion.

One end of the secondary slide rail 600 is provided with a first movable pulley 610, the other end of the secondary slide rail 600 is provided with a second movable pulley 620, and the first movable pulley 610 is located at the end far away from the first fixed pulley 220, so that the first flexible cable section 410 sequentially bypasses the first fixed pulley 220, the first movable pulley 610 and the second movable pulley 620, and the movement stroke of the secondary slide rail 600 relative to the guide rail 210 is ensured. The first movable pulley 610 is disposed at the right end of the secondary slide rail 600, and the second movable pulley 620 is disposed at the left end of the secondary slide rail 600. Similarly, the first movable pulley 610 and the second movable pulley 620 may be disposed at other positions of the secondary slide rail 600 in the case that the stroke of the secondary slide rail 600 is required.

The tensioning mechanism 500 is fixed to the rear end of the primary slide rail 300 along the extending direction of the primary slide rail 300 relative to the secondary slide rail 600, that is, the tensioning mechanism 500 is disposed at the rear end of the primary slide rail 300. In this case, the stroke of the movement of the first-stage slide rail 300 relative to the second-stage slide rail 600 can be ensured. Of course, the tensioning mechanism 500 may be disposed at other positions of the primary slide rail 300 under the condition that the stroke of the primary slide rail 300 meets the requirement.

In some cases, the diameter of the rotating wheel 100 is larger than the diameters of the first fixed pulley 220, the first movable pulley 610, and the second movable pulley 620. Wherein, the rotating wheel 100 is arranged corresponding to the first fixed pulley 220, the first movable pulley 610 and the second movable pulley 620, it can be understood that: the rotation wheel 100 is located on a straight line where the first and second movable pulleys 610 and 620 are located, or a distance between the straight line where the first and second movable pulleys 610 and 620 are located and the rotation wheel 100 is small, thereby ensuring smooth movement of the wire 400. In addition, the diameter of the rotating wheel 100 is larger than the first movable pulley 610 and the second movable pulley 620, so that it can be ensured that the wire segments at both sides of the rotating wheel 100 can be tangent to the rotating wheel 100, to further ensure the smooth running of the wire 400.

As shown in fig. 1 to 6, the wire 400 includes a second wire segment 420 extended from an upper side of the rotary wheel 100 and a first wire segment 410 extended from a lower side of the rotary wheel 100. The first wire section 410 includes a first section, a second section, and a third section, the first section being located between the first fixed pulley 220 and the first movable pulley 610; the second segment is located between the first movable pulley 610 and the second movable pulley 620; the third section is located between the second movable pulley 620 and the primary sliding rail 300. The first section, the second section and the third section have a certain included angle therebetween. In order to ensure smooth operation of the first wire section 410 and to save power of the rotary drive under the same conditions, the first, second and third sections may be arranged in parallel with each other. The first wire section 410 extending from the lower side of the rotating wheel 100 further comprises a fourth section between the rotating wheel 100 and the first fixed pulley 220.

It will be appreciated that the rotary wheel 100 is provided to the mount 200 as shown in fig. 1 and 2. Under the condition, all parts of the linear motion mechanism can be ensured to be concentrated as much as possible, and the disassembly and assembly are ensured to be convenient. The rotary drive may also be fixed to the mounting member 200. Taking the rotary driving piece as the motor as an example, the motor does not need to move along the slide rail of the linear motion mechanism, thereby avoiding the lead of the motor from being dynamically bent.

Of course, the rotation wheel 100 may be disposed at other positions as long as the rotation driving member can drive the flexible cable 400 to move by the rotation wheel 100. In addition, the position of the rotary drive is also not limited. As long as the rotary wheel 100 can be driven to rotate. When the linear motion mechanism is particularly suitable for the refrigerator, the rotary driving piece is not restricted by space, and the linear motion mechanism can be conveniently arranged in the refrigerator.

When the rotary wheel 100 is disposed at other positions, the linear motion mechanism may further include a second fixed pulley, and the second fixed pulley is disposed at the mounting member 200, so that the disposition of the rotary wheel 100 may be more flexible. For example, the rotation wheel 100 may be disposed outside the mount 200. When the linear motion mechanism is installed in the drawer body, the installation positions of the rotary wheel 100 and the rotary driving member relative to the drawer body are selected as appropriate. In this case, the first wire section 410 is wound around the second fixed pulley and the first fixed pulley 220 in sequence. The second fixed pulley serves to adjust the extending direction of the first wire section 410. In the case where the linear motion mechanism includes the first movable pulley 610 and the second movable pulley 620, the first wire section 410 passes around the second fixed pulley, the first fixed pulley 220, the first movable pulley 610, and the second movable pulley 620 in sequence.

The rotating wheel 100 may be a synchronous pulley or a pulley, and the flexible cable 400 may be a belt or a flexible belt having a high friction coefficient. For example, the rotating wheel 100 may select a pulley and the flexible cable 400 selects a belt that mates with the pulley. This situation can ensure that the rotating wheel 100 rotates to drive the flexible cable 400 to move, and prevent the flexible cable 400 from slipping relative to the rotating wheel 100. Likewise, the specific structure of the flexible cable 400 is not limited, and may be, for example, a steel cable. Of course, the specific form of the rotating wheel 100 and the wire 400 is not limited as long as the rotating wheel 100 rotates to drive the wire 400 to move and prevent the wire 400 from slipping as much as possible. Meanwhile, the pulley may be replaced with other open or closed structures capable of passing through the wire 400 as long as the commutation can be achieved.

Next, the movement process of the linear movement mechanism will be described with reference to fig. 1 to 6.

From the state shown in fig. 1 to the state shown in fig. 2, when the rotating wheel 100 rotates counterclockwise, the fourth segment between the rotating wheel 100 and the first fixed pulley 220 moves to the right, and drives the first fixed pulley 220 to rotate; the first segment moves leftwards and drives the first movable pulley 610 to rotate; the second segment moves to the right and drives the second movable pulley 620 to rotate; the third segment moves to the left and drives the first-stage sliding rail 300 to move to the left. When the primary sliding rail 300 moves to the extreme position to the left, if the rotating wheel 100 continues to rotate counterclockwise, the first movable pulley 610 is driven to move to the left due to the leftward movement of the first segment, and then the secondary sliding rail 600 moves to the left, and at this time, the first movable pulley 610 and the second movable pulley 620 move synchronously with the secondary sliding rail 600. When the primary sliding rail 300 moves leftward, the second flexible cable segment 420 is lengthened, and the segment between the second movable pulley 620 and the tensioning mechanism 500 is shortened; when the secondary slide rail 600 moves to the left, the section between the first fixed pulley 220 and the first movable pulley 610 becomes shorter, and the section between the rotary wheel 100 and the tension mechanism 500 continues to become longer.

From the state shown in fig. 2 to the state shown in fig. 1, when the rotary wheel 100 rotates clockwise, the segment between the rotary wheel 100 and the primary slide 300 moves to the right, thereby moving the primary slide 300 to the right. When the primary sliding rail 300 moves rightwards to the extreme position, if the rotating wheel 100 continues to rotate clockwise, the segment between the rotating wheel 100 and the primary sliding rail 300 continues to move rightwards, and then the segment between the primary sliding rail 300 and the second movable pulley 620 also moves rightwards, and drives the second movable pulley 620 to move rightwards, so as to drive the secondary sliding rail 600 to move rightwards. When the primary sliding rail 300 moves to the right, the second wire section 420 between the rotating wheel 100 and the tensioning mechanism 500 is shortened, and the section between the second movable pulley 620 and the tensioning mechanism 500 is lengthened; when the secondary slide rail 600 moves to the right, the section between the first fixed pulley 220 and the first movable pulley 610 is lengthened, and the second wire section 420 between the rotating wheel 100 and the tensioning mechanism 500 is further shortened.

In the linear motion mechanism in the above embodiment, the flexible cable 400 is used in cooperation with the pulley to provide a transmission mechanism with a stroke larger than a contraction state and a synchronous noise reduction scheme thereof, so that a linear motion mechanism and a synchronous structure thereof are realized, and the structure has the following advantages: the first-stage slide rail 300 and the second-stage slide rail 600 are arranged in the vertical direction, the occupied transverse space is small, the elasticity and the tensile force of the flexible cable 400 can be conveniently adjusted, the damping can be adjusted accordingly, only rotation is achieved in the action, and the noise is low.

Embodiments of the second aspect of the present invention, as shown in fig. 1 to 8, provide a linear motion assembly, including a rotary driving member and at least two linear motion mechanisms in the above embodiments, the rotary wheel 100 is connected through the synchronization rod 700, and the rotary driving member is connected to the rotary wheel 100 to drive the rotary wheel 100 and the synchronization rod 700 to rotate along a predetermined axis. The linear motion mechanism has the above-mentioned advantages, and the linear motion assembly has the above-mentioned advantages, which can be referred to above and will not be described herein again.

Wherein, at least two swiveling wheel 100 share the rotation driving piece, and the linear motion subassembly can dispose a rotation driving piece, and a plurality of linear motion mechanism drive through a rotation driving piece to carry out the transmission through synchronizing bar 700 (synchronizing bar 700 fixed connection swiveling wheel 100), simple structure and a plurality of linear motion mechanism's motion are more unanimous.

When the linear motion mechanism is provided with two or more than two, the rotating wheels 100 are provided with two or more than two, and the rotating wheels 100 can be connected through the synchronizing rod 700, so that the rotating wheels 100 can synchronously rotate, and further the one-level sliding rails 300 can synchronously move (when the linear motion mechanism further comprises the middle sliding rails, the middle sliding rails also synchronously move), so that one or more driven parts can be driven to synchronously move through the one-level sliding rails 300.

Each linear motion mechanism is provided with a tensioning mechanism 500, so that the flexible cable 400 of each linear motion mechanism can be tensioned and adjusted, the motion consistency of each linear motion mechanism is improved, and the motion stability of the driven part is improved.

It will be appreciated that, as shown in fig. 7 and 8, the rotary wheel 100 is coupled to the mounting member 200, and two linear motion mechanisms are symmetrically provided at both sides of the synchronization lever 700. When the two linear motion mechanisms are used for driving one driven part (for example, the driven part is a drawer or a shelf), the two linear motion mechanisms are symmetrically arranged, and the linear motion mechanisms can be connected to two sides of the driven part, so that the driven part can be synchronously driven, the synchronous motion of two sides of the driven part is ensured, and the driven part is lifted to smoothly move and adjust.

The embodiment of the third aspect of the utility model provides a drawer assembly, including the drawer body, still include the linear motion mechanism in the above-mentioned embodiment, or, the linear motion subassembly in the above-mentioned embodiment, drawer body coupling in one-level slide rail 300, linear motion mechanism's one-level slide rail 300 motion can drive the drawer assembly and carry out the pull regulation, and the drive mode of drawer assembly is simple.

The rotating wheel 100 is driven to rotate by the rotating driving member, and the flexible cable 400 is driven to move, so that the primary sliding rail 300 slides relative to the guide rail 210. Furthermore, when the drawer body is mounted on the first-stage slide rail 300, the drawer body can move relative to the mounting member 200, so that the drawer can be automatically drawn and pulled.

It is worth mentioning that the automatically drawable drawer assembly in the embodiment can be obtained by modifying the existing drawer assembly. Specifically, the rotating wheel 100, the sliding rail, the fixed pulley and the tensioning mechanism are added, or the movable pulley is added, so that the manufacturing cost is low.

When the drawer assembly is provided with the linear motion assembly, as shown in fig. 7 and 8, the two linear motion mechanisms synchronously drive the drawer assembly to move, and the movement of the drawer body is more stable.

The automatic drawing of the drawer body can be controlled by arranging a corresponding switch or a corresponding inductor. For example, a switch is provided on a panel portion of the drawer body, and then the switch drawer is automatically extended by pressing the switch drawer, and the switch drawer is automatically retracted by pressing the switch drawer again. For another example, a sensor is disposed on the panel portion of the drawer body, and when the sensor senses a corresponding motion, such as approaching of a human hand, a signal is generated to control the drawer body to extend or retract.

The embodiment of the fourth aspect of the present invention provides a storage cabinet, which comprises a box body, and a drawer body and/or a shelf arranged in the box body, and further comprises a linear motion mechanism in the above embodiment, or a linear motion assembly in the above embodiment, at least one of the drawer body and the shelf is connected to the one-level slide rail 300, and the mounting member 200 is fixed to the box body. The storage cabinet is provided with the linear motion mechanism in the above embodiments, so that the storage cabinet has the above beneficial effects, which can be referred to specifically, and is not described again here.

That is, at least one of a drawer body and a shelf is provided in the cabinet of the locker. On the basis, the drawer body or the shelf can be arranged on the box body through the linear motion mechanism.

The drawer body and/or the shelf can realize automatic linear motion relative to the box body, and then articles can be conveniently taken and placed. And the linear motion mechanism between the drawer body and/or the shelf and the box body occupies small space and has simple structure, so that the drawer body and/or the shelf hardly occupies the space inside the box body additionally. In addition, the linear motion mechanism is low in manufacturing cost, convenient to assemble and disassemble and strong in applicability, and can be applied to various products such as refrigerators, wardrobes, display cabinets and the like.

The mounting member 200 may be a separate member detachably mounted to the cabinet, or the mounting member 200 may be integrally formed with the cabinet.

The primary sliding rail 300 and the mounting member 200 are sequentially disposed along the height direction of the locker. Thus, the weight of the drawer body or the weight of the shelf is transferred to the mount 200 through the primary slide rail 300, and thus the mount 200 needs to have sufficient structural strength. Wherein, the primary sliding rail 300 can be fixed with the side wall of the drawer body or the side wall of the shelf. In this case, the volume of the lateral space occupied by the linear motion mechanism is small.

The primary sliding rail 300 and the mounting member 200 are sequentially provided along the width direction of the locker, and the primary sliding rail 300 is fixed to a wall of a drawer or a wall of a shelf. In this case, the mounting member 200 mainly serves to guide the moving direction of the primary slide rail 300 by providing the guide rail 210. At this time, the drawer body or the shelf may be supported by an additionally provided bearing member. In addition, in order to ensure that the drawer body or the shelf moves relative to the mounting member 200, a roller can be arranged at the bottom of the drawer body or the shelf, and the roller and the bearing member are in rolling friction to ensure that the drawer body or the shelf moves smoothly. In this case, there is no great requirement for the structural strength of the mounting member 200 as long as the guide rail 210 thereof can guide the primary slide rail 300.

The rotary wheel 100 is installed at the inner side of the locker. Wherein, certain noise can be produced when the rotary wheel 100 moves, and the noise transmitted from the storage cabinet can be reduced by installing the rotary wheel 100 at the inner side of the storage cabinet. The inner side of the storage cabinet refers to the side far away from the door body, and on the contrary, the side close to the door body refers to the outer side of the storage cabinet. In the use process, the inner side of the locker is the side far away from the user.

The storage cabinet may be a refrigerator, a retail cabinet, a display cabinet, etc., and the specific form of the storage cabinet is not limited by the examples herein. Of course, the linear motion mechanism of the above embodiment is not limited to be applied to a storage cabinet, but may also be applied to other occasions, for example, a drawer, a side hung door, a telescopic mechanical arm, and the like of a desk may all realize state switching through the linear motion mechanism.

The following description will specifically describe the application of the linear motion mechanism by taking the extension and contraction of a drawer in a refrigerator as an example:

the mount 200 of the linear motion mechanism shown in fig. 7 and 8 is mounted to the cabinet of the refrigerator, and the primary slide rail 300 of the linear motion mechanism is mounted to the drawer body.

When food needs to be taken and placed on the outer side of the drawer body, the primary slide rail 300 of the triggering linear motion mechanism extends out relative to the secondary slide rail 600. If food needs to be taken or placed inside the drawer body, the secondary slide rail 600 triggering the linear motion mechanism extends relative to the guide rail 210. Specifically, the rotary driving member drives the rotary wheel 100 to move counterclockwise, so as to extend the first-stage sliding rail 300 or even the second-stage sliding rail 600. Wherein, can set up the inductor in refrigerator corresponding position, when continuously sensing corresponding operation, then the continuous action of rotary driving piece to make the drawer body stretch out gradually. When the corresponding operation disappears, the rotary driving piece does not act any more, and the drawer body stops at the current position at the moment. For example, a pressing sensor is disposed on the drawer body, the door body or the cabinet liner, and the rotary driving member continuously drives the rotary wheel 100 to rotate to drive the drawer body to extend out based on the pressing operation. For another example, the press sensor may be replaced with an infrared sensor or other type of sensor. And when the drawer body needs to be retracted, continuous induction is not needed, and the drawer body can be retracted only by one operation. Of course, the linear motion mechanism may be controlled based on a sound signal, and for example, the state of the drawer body may be switched based on sound information such as "open the drawer" or "close the drawer".

The above embodiments are only for illustrating the present invention, and are not to be construed as limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims (15)

1. A linear motion mechanism, comprising:

the rotating wheel is suitable for rotating along a preset axis;

the mounting piece is provided with a guide rail and is provided with a first fixed pulley;

the primary slide rail is connected to the guide rail in a sliding manner;

the flexible cable comprises a first flexible cable section and a second flexible cable section which are arranged opposite to the primary slide rail, the first flexible cable section bypasses the first fixed pulley and is connected with the primary slide rail, one of the first flexible cable section and the second flexible cable section is suitable for being wound on the rotating wheel along with the rotation of the rotating wheel, and the other one of the first flexible cable section and the second flexible cable section is suitable for being wound on the rotating wheel along with the rotation of the rotating wheel and releasing the winding of the rotating wheel;

and at least one of the first flexible cable section and the second flexible cable section is connected with the primary sliding rail through the tensioning mechanism.

2. The linear motion mechanism of claim 1, wherein the tensioning mechanism includes a first wheel body and a first pawl, the first wheel body is adapted to move in a first direction and couple to the first flexible cable segment such that the first flexible cable segment moves with the first wheel body, one end of the first pawl is fixed to the first wheel body to stop the first wheel body in a second direction, the other end of the first pawl is coupled to the primary slide rail, and the first direction is opposite to the second direction;

and/or the tensioning mechanism comprises a second wheel body and a second clamping jaw, the second wheel body is suitable for moving along the second direction and is connected with the second flexible cable section, so that the second flexible cable section moves along with the second wheel body, one end of the second clamping jaw is limited in the second wheel body so as to stop the second wheel body in the first direction, and the other end of the second clamping jaw is connected with the primary slide rail.

3. The linear motion mechanism of claim 2, wherein the first pulley body is adapted to rotate in the first direction, a first groove is formed in an inner circumference or an outer circumference of the first pulley body, the first claw is retained in the first groove, and the first cable segment is adapted to be wound around the first pulley body in the first direction;

and/or the second wheel body is suitable for moving along the second direction, a second groove body is arranged on the inner periphery or the outer periphery of the second wheel body, the second clamping jaws are limited in the second groove body, and the second flexible cable section is suitable for being wound around the second wheel body along the second direction.

4. The linear motion mechanism as claimed in claim 3, wherein the first pulley body includes a first connecting portion, a first winding portion and a first blocking portion, the first connecting portion is connected to the primary slide rail, the first winding portion is located between the first connecting portion and the first blocking portion, the first winding portion is configured to wind the first flexible cable segment, and the first flexible cable segment is limited on a side of the first blocking portion facing the first winding portion;

and/or, the second wheel body includes second connecting portion, second wire winding portion and second and separates fender portion, the second connecting portion connect in the one-level slide rail, second wire winding portion is located the second connecting portion with the second separates between the fender portion, second wire winding portion is used for the coiling the second flexible cable section, the second flexible cable section is spacing in the second separates fender portion orientation one side of second wire winding portion.

5. The linear motion mechanism according to claim 4, wherein the first wheel body comprises a first clamping portion, the first clamping portion is located between the first connecting portion and the first blocking portion, and the first groove body is arranged on the periphery of the first clamping portion;

and/or the second wheel body comprises a second clamping portion, the second clamping portion is located between the second connecting portion and the second blocking portion, and the periphery of the second clamping portion is provided with a second groove body.

6. The linear motion mechanism of claim 4, wherein the first pulley body is provided with a first wire clamping groove, and an end of the first flexible cable section is limited in the first wire clamping groove;

and/or the second wheel body is provided with a second wire clamping groove, and the end part of the second flexible cable section is limited in the second wire clamping groove.

7. The linear motion mechanism of claim 6, wherein the first wire-engaging groove includes a first groove portion and a second groove portion that are in communication, the first groove portion being located at the first barrier portion, the second groove portion being located at the first wire-winding portion, a portion of the second groove portion being offset from the first groove portion;

and/or the second wire clamping groove comprises a third groove part and a fourth groove part which are communicated, the third groove part is positioned on the second partition part, the fourth groove part is positioned on the second wire winding part, and the fourth groove part is staggered with the third groove part.

8. The linear motion mechanism of claim 2, wherein the first wheel body defines a first mounting hole for mounting a rotary drive tool;

and/or the second wheel body is provided with a second mounting hole for mounting a rotary driving tool.

9. The linear motion mechanism of any one of claims 1 to 8, wherein the primary slide rail is mounted to the guide rail via a plurality of intermediate slide rails, the intermediate slide rails are provided with movable pulleys, and the first flexible cable segment sequentially passes around the first fixed pulley and the movable pulleys.

10. The linear motion mechanism of claim 9, wherein the intermediate slide rail is a secondary slide rail slidably connected between the guide rail and the primary slide rail, the secondary slide rail adapted to slide reciprocally relative to the guide rail, the primary slide rail adapted to slide reciprocally relative to the secondary slide rail;

the movable pulley includes first movable pulley and second movable pulley, first movable pulley with the second movable pulley is located the both ends of second grade slide rail, first movable pulley is located keeps away from the one end of first fixed pulley, first flexible cable section is walked around in proper order first fixed pulley first movable pulley with the second movable pulley.

11. A linear motion assembly comprising at least two linear motion mechanisms according to any one of claims 1 to 10 and a rotary drive member, wherein the rotary wheels are fixedly connected by a synchronizing bar, and the rotary drive member is used for driving the rotary wheels and the synchronizing bar to rotate.

12. The linear motion assembly of claim 11 wherein the rotating wheel is connected to the mounting member, and the two linear motion mechanisms are symmetrically disposed on opposite sides of the synchronizing bar.

13. A drawer assembly comprising a drawer body and further comprising the linear motion mechanism of any one of claims 1 to 10 or the linear motion assembly of claim 11 or 12, the drawer body being connected to the primary slide.

14. A cabinet comprising a cabinet and a drawer body and/or shelf located within the cabinet, wherein the drawer body and/or shelf is connected to the primary slide, and further comprising the linear motion mechanism of any one of claims 1 to 10, or the linear motion assembly of claim 11 or 12, and the mounting member is fixed to the cabinet.

15. The storage cabinet of claim 14, wherein the primary sliding rail and the mounting member are arranged in series along the height of the storage cabinet, and the primary sliding rail is fixed to the wall of the drawer body or the wall of the shelf.

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