TWM522284U - Push rod structure - Google Patents

Description

Putter structure

The present invention provides a push rod structure, in particular, the extension of the outer body of the push rod body is inserted into the lead screw, and the butt joint is screwed on the lead screw, and the guide rail plate of the docking seat is the outer tube extending through the outer tube. In the slip groove, the overall structure can be simplified, and the utility is easy to assemble and mass production to improve production efficiency.

According to the current push rod device, it is quite common, and different types of push rod devices also have different mechanism design and transmission methods, and can be applied to medical or domestic beds, massage chairs, fitness and rehabilitation related equipment, etc. The window opening machine and the lifting mechanism are used, and in the process of motor power transmission, the general push rod device can use the worm to drive the worm wheel or the spindle driving gear set to rotate the screw, and the screw is rotated to push the nut axially. Linear displacement and interlocking of the telescopic tube set for adjustment of lifting height or rotation angle.

Furthermore, most of the current pusher devices use the sleeve of the telescopic tube set to limit the lateral displacement of the nut to the telescopic sleeve, even if the telescopic sleeve can linearly extend or shorten along the central axis of the screw, and The fixed head of the front end of the telescopic sleeve drives the displacement of the working platform. Since the displacement distance of the telescopic sleeve is the length of the outer sleeve minus the length of the nut, the working stroke of the push rod device will be greatly reduced due to the limitation of the nut, and The volume of the pusher device cannot be effectively reduced. If it is to increase the distance that the pusher device can be lifted, it is necessary to expand the telescopic sleeve. When the length of the tube is extended, and the length of the telescopic sleeve exceeds the distance of the housing of the push rod device, the swaying and instability may easily occur, and the telescopic sleeve is combined by screwing. Between the nut and the fixed head, when the working platform is subjected to excessive force or long-term impact by external force vibration, the telescopic sleeve may be loosened.

In order to solve the problem of the practical use of the telescopic tube set of the above-mentioned pusher device, a manufacturer has introduced a linear motor driver device, which is an iron bar connected to a motor component (including an organic casing and an electric motor fixed in the casing). A worm assembly connected to the motor assembly is disposed in the guide rail, and a driving piece spanned to the iron rail guide is connected to the worm assembly, and the connecting piece on the driving piece is provided with a connecting seat for the movable connecting rod, and then the iron rail guide One end is fastened with a fastener for fixing the outer cover of the worm assembly, which can be directly connected to the iron rail by the driving piece and screwed with the worm assembly, so that the worm assembly drives the driving piece to slide along the iron rail. Long displacement travel distance, but the drive piece is assembled either before it is connected to the iron rail, then the worm assembly is screwed to the drive piece, or the drive piece is first screwed onto the worm assembly, and then The iron rail guide passes through the driving piece and is finally mounted on the casing of the motor assembly. Since the driving piece is screwed onto the iron rail guide and screwed with the worm assembly, the overall structure is It can't be simplified and complicated, and it takes a lot of time to align during the assembly process, which makes the manufacturing and assembly process quite cumbersome and not conducive to mass production, which is to be researched and improved by those who want to work in this industry. The key is.

Therefore, in view of the above-mentioned problems and shortcomings, the new creators have collected and collected relevant data through various evaluations and considerations, and have used the trial and modification of many years of R&D experience in this industry to design a new type of putter structure. Born.

The main purpose of the present invention is that the internal accommodation space of the body of the push rod body is provided with a gear set, and a driving portion for driving the gear set to rotate is coupled to the outside of the seat body, and the gear set is coupled with a guide. The transmission mechanism of the screw, and the hollow inner portion of the extended outer tube combined with the front portion of the seat body is formed with a passage through which the lead screw can be inserted, and is axially sectioned on the surface of the extended outer tube to be connected to the sliding in the passage The shifting groove and the lead screw are screwed with a docking seat in which the interlocking component is axially displaced in the channel, and a guide rail extending radially outward from the center of the docking seat and slidingly displaced in the sliding groove The plate, the rail plate of the docking seat and the single sliding groove structure of the extended outer pipe not only simplify the overall component, but also make the manufacturing and assembly procedures more compact, and easy to assemble and mass production. Improve the efficiency of production efficiency to effectively reduce the cost of manufacturing.

The secondary purpose of the present invention is that when the gear set meshed on the drive shaft of the drive unit rotates, the lead screw is simultaneously rotated, and the lead screw is rotated to push against the docking seat of the linkage assembly. The guide rail plate can be axially slidingly displaced along the sliding groove of the extended outer tube, and can also be guided by the plurality of convex rails and rail grooves extending corresponding to the sliding displacement of the outer tube and the docking seat. The function of the limit position and the two can be integrally formed by the material with low friction coefficient, so that the self-lubricating property of the contact between the docking seat and the extended outer tube can assist the sliding seat displacement of the docking seat to be more stable and smooth.

1‧‧‧Pushing body

10‧‧‧ accommodating space

101‧‧‧ openings

11‧‧‧

111‧‧‧Shell

112‧‧‧Connecting Block

1121‧‧‧First joint hole

12‧‧‧ Gear Set

121‧‧‧Drive gear

13‧‧‧ Drive Department

131‧‧‧Motor

132‧‧‧Drive shaft

14‧‧‧Transmission mechanism

141‧‧‧ lead screw

1411‧‧‧End

15‧‧‧Extended outer tube

150‧‧‧ channel

151‧‧‧Slip groove

152‧‧‧ convex rail

153‧‧‧Limited baffle

1531‧‧‧ fitting slot

154‧‧‧Switch components

1541‧‧‧ Positioning board

1542‧‧‧limit switch

16‧‧‧ Cover

161‧‧‧Axis hole

17‧‧‧ Fixed seat

171‧‧‧through hole

18‧‧‧ bracket

181‧‧‧ fixed board

1811‧‧‧Second joint hole

1812‧‧‧Latch

2‧‧‧ linkage components

21‧‧‧ docking station

210‧‧‧ screw holes

211‧‧‧rail plate

2111‧‧‧ first connection hole

212‧‧‧ rail slot

213‧‧‧ Positioning slider

2131‧‧‧Resistance

214‧‧‧Top push block

22‧‧‧ Connecting rod

220‧‧‧Fitting space

221‧‧‧ joint plate

2211‧‧‧Second connection hole

2212‧‧‧ Positioning components

The first figure is a three-dimensional appearance of the preferred embodiment of the present invention.

The second drawing is a perspective exploded view of the preferred embodiment of the present invention.

The third figure is an exploded perspective view of another perspective of the preferred embodiment of the present invention.

The fourth figure is a cross-sectional view of the first part of the creation of Figure A-A.

The fifth figure is a cross-sectional view of the B-B part of the first drawing of the creation.

In order to achieve the above objectives and effects, the technical means and its construction adopted in the present invention are described in detail in the preferred embodiment of the present invention, and the structure and function are as follows.

Please refer to the first, second, third, fourth and fifth figures, which are respectively a three-dimensional appearance view, an exploded view of the preferred embodiment, an exploded perspective view of another perspective, and a sectional view of the AA part of the first figure. And the cross-sectional view of the BB portion, as can be clearly seen from the figure, the pusher structure of the present invention comprises a pusher body 1 and a linkage assembly 2, wherein the pusher body 1 has a hollow seat body 11 and is seated thereon. An accommodating space 10 having an opening 101 at the front and rear sides is formed in the body 11 , and the outer casing 111 disposed at the rear of the accommodating space 10 is assembled by the two outer casings 111 of the base 11 to be fitted and locked. A connecting seat 112 of the engaging hole 1121, and at least one driving gear 121 (such as a worm wheel or a spur gear) provided with the gear set 12 in the accommodating space 10 of the seat body 11 and a driving portion 13 coupled to the outside of the seat body 11 And the drive unit 13 has a motor 131 on the side of the motor 131 that is inserted into the accommodating space 10 for engaging the driving gear 121 to drive the rotating shaft 132 (such as a worm or a shaft) a gear), and a gear mechanism 14 having a lead screw 141 is coupled to the gear set 12, and The screw 141 and the motor 131 is disposed parallel to or perpendicular to each other are formed.

Furthermore, the opening 101 in front of the seat body 11 is formed by the two outer casings 111 being engaged with the outer casing 15 extending outside the seat body 11 by means of the two outer casings 111. The tube 15 is preferably integrally formed from an aluminum extruded profile. However, in practical applications, the metal may be integrally formed by drawing and drawing, and a lead screw 141 may be formed in the hollow interior of the extended outer tube 15. The passage 150 is formed in a suspended state, and the center of the top surface of the extension outer tube 15 is a slide groove 151 which is axially cross-sectioned and extends into the passage 150 from the end surface of the extension outer tube 15 to the other end surface. In addition, the inner wall surface of the channel 150 extending the outer tube 15 is provided with a plurality of parallel convex rails 152 oppositely inward, and a horizontal limit baffle 153 is axially disposed below one of the convex rails 152, and the limit is limited. A fitting groove 1531 is formed between the baffle 153 and the bottom of the extending outer tube 15, and the switch assembly 154 having the positioning plate 1541 is vertically coupled to the surface of the positioning plate 1541 by fitting and fixing in the fitting groove 1531. A limit switch 1542 is provided at the front and rear sides.

However, the extension outer tube 15 has a cover body 16 and a fixing seat 17 located in the base body 11 respectively formed by the front and rear sides of the passage 150, and is provided on the cover body 16 for extending forward of the lead screw 141. The end portion 1411 is inserted into the shaft hole 161 which is formed to be pivotally connected, and the fixing seat 17 is provided with a through hole 171 through which the lead screw 141 passes to extend outside the seat body 11. Further, the connecting seat 112 of the base body 11 is a bracket 18 attached to an external device (such as an electric bed, a massage chair, a fitness and rehabilitation related device, etc.), a lifting mechanism or other device, the bracket 18 having an opposite fixing plate 181, and two fixing plates 181 The second engaging hole 1811 is provided with a bolt or a latch 1812, so that the latch 1812 can pass through the second engaging hole 1811 of the fixing plate 181 and form a movable pivotal connection with the first engaging hole 1121 of the connecting seat 112.

The linkage assembly 2 is a docking seat 21 including a passage 150 located in the extended outer tube 15, and a connecting rod 22 coupled to the docking seat 21, and the hollow portion of the docking seat 21 The portion has a screw hole 210 screwed to the lead screw 141, and a fin-shaped guide plate 211 extending radially outward from the center of the docking seat 21 and slidingly displaced in the sliding groove 151, and the rail plate 211 The first connecting hole 2111 is disposed at an upper portion thereof, and the plurality of rail grooves 212 corresponding to the convex rails 152 of the extending outer tube 15 are oppositely inwardly disposed on the two side surfaces of the mating seat 21, and the rail grooves 212 are The guide rails 211 are formed to be perpendicular to each other, and are disposed at a position close to the center of the bottom of the docking seat 21, and are disposed along the side edges of the limiting baffle 153 to be slidably displaced along the positioning slider 213, and the positioning slider 213 is adjacent to each other. The lateral surface of the docking seat 21 is formed with a stepped resisting surface 2131 that abuts against the limiting baffle 153, and the bottom side of the docking seat 21 extends downward to have a limit for pushing the switch assembly 154. A cantilevered pusher block 214 that triggers its actuation is performed on switch 1542.

In addition, the connecting rod 22 has an opposite engaging plate 221, and the engaging plate 221 and the connecting rod 22 are formed perpendicular to each other, and a fitting space in which the rail plate 211 is embedded is formed between the two engaging plates 221 The second connecting hole 2211 of the second joint plate 221 is provided with a positioning member 2212 which can be a bolt or a pin. The positioning member 2212 can pass through the second connecting hole 2211 of the joint plate 221 and the rail plate 211. A movable pivot joint is formed in the first connection hole 2111.

The pusher body 1 of the present invention is connected to the bracket seat 18 and the connecting rod 22 of the external device by the connecting plate 112 and the rail plate 211 of the linking component 2, respectively, when the motor 131 of the driving portion 13 drives the driving shaft 132 to engage When the gear set 12 rotates, the driving gear 121 will drive the lead screw 141 to rotate at the same time, and the lead screw 141 is rotated to push against the docking seat 21 of the linkage assembly 2 so that the rail plate 211 extends along the extension. The sliding groove 151 of the tube 15 acts as an axial linear sliding displacement, and is permeable to the outer tube 15 The plurality of convex rails 152 and the rail grooves 212 corresponding to the sliding displacement of the docking seat 21 form a guiding and limiting position, and the two can be integrally formed by a metal or plastic material having a low friction coefficient to make the docking. When the seat 21 and the extended outer tube 15 are in contact with each other, there will be self-lubricating characteristics, which can assist the sliding seat of the docking seat 21 to be more stable and smooth, and can also avoid contact friction caused by high friction coefficient under long-term use. The damage of the component or the abnormal sound occurs, and the link plate 22 of the docking seat 21 is connected to the joint plate 221 to make the link 22 axially linearly displace or rotate. The guide rail plate 211 of the docking seat 21 cooperates. The structural design of the single outer sliding groove 151 of the outer tube 15 not only simplifies the whole component, but also makes the manufacturing and assembly procedures more compact, and has the effects of easy assembly, mass production and improved production efficiency, so as to be effective. Reduce the cost of manufacturing.

When the lead screw 141 is driven to move the docking seat 21 of the interlocking component 2 in the forward direction, the pushing block 214 can be used to trigger the trigger switch 1542 at the end position of the switch component 154, and the limit switch 1542 can be used to switch the control motor 131. The driving gear set 12 rotates the lead screw 141 in the reverse direction, and then drives the docking seat 21 to reversely shift to return to the starting position, and after the pushing block 214 of the docking seat 21 touches the limit switch 1542 of the starting position, the triggering action is performed. Then, the switching control motor 131 drives the gear set 12 to cause the lead screw 141 to move in the forward displacement or stop of the docking seat 21, thereby completing the stroke control conversion of the linear reciprocating displacement of the push rod body 1.

Therefore, the present invention is mainly provided with a gear set 12 for the inside of the seat body 11 of the pusher body 1, and a drive portion 13 for driving the drive gear set 12 to rotate around the seat body 11, and the gear set 12 A transmission mechanism 14 having a lead screw 141 is coupled to the upper portion, and an inner portion of the extended outer tube 15 coupled to the front portion of the base body 11 is formed with a lead screw 141. The passage 150 is penetrated, and the surface of the extension outer tube 15 is axially disposed to be connected to the sliding groove 151 in the passage 150. The lead screw 141 is screwed with the linkage assembly 2 and is axially displaced in the passage 150. The docking seat 21, and extending from the center of the docking seat 21, has a rail plate 211 extending radially and located in the sliding groove 151 for sliding displacement. The rail plate 211 of the mating seat 21 cooperates with the extending outer tube 15 The structural design of the sliding groove 151 simplifies the overall structure, makes the manufacturing and assembly procedures more compact, and has the advantages of easy assembly, mass production and improved production efficiency, thereby effectively reducing the cost required for manufacturing.

The above detailed description is intended to illustrate a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and other equivalents and modifications may be made without departing from the spirit of the invention. Changes are to be included in the scope of patents covered by this creation.

In summary, the above-mentioned putter structure used in this creation can really achieve its efficacy and purpose. Therefore, this creation is a practical and excellent creation, which is in line with the application requirements of the new patent, and the application is submitted according to law. The Commission will grant this case as soon as possible to protect the hard work of the new creators. If there is any doubt in the bureau, please do not hesitate to give a letter, and the new creators will try their best to cooperate with them.

1‧‧‧Pushing body

10‧‧‧ accommodating space

101‧‧‧ openings

11‧‧‧

111‧‧‧Shell

112‧‧‧Connecting Block

1121‧‧‧First joint hole

12‧‧‧ Gear Set

121‧‧‧Drive gear

13‧‧‧ Drive Department

131‧‧‧Motor

132‧‧‧Drive shaft

14‧‧‧Transmission mechanism

141‧‧‧ lead screw

1411‧‧‧End

15‧‧‧Extended outer tube

150‧‧‧ channel

151‧‧‧Slip groove

152‧‧‧ convex rail

153‧‧‧Limited baffle

1531‧‧‧ fitting slot

154‧‧‧Switch components

1541‧‧‧ Positioning board

1542‧‧‧limit switch

16‧‧‧ Cover

17‧‧‧ Fixed seat

171‧‧‧through hole

18‧‧‧ bracket

181‧‧‧ fixed board

1811‧‧‧Second joint hole

1812‧‧‧Latch

2‧‧‧ linkage components

21‧‧‧ docking station

210‧‧‧ screw holes

211‧‧‧rail plate

2111‧‧‧First connection hole

212‧‧‧ rail slot

213‧‧‧ Positioning slider

22‧‧‧ Connecting rod

220‧‧‧Fitting space

221‧‧‧ joint plate

2211‧‧‧Second connection hole

2212‧‧‧ Positioning components

Claims (8)

The utility model relates to a push rod structure, which comprises a push rod body and a linkage assembly, wherein: the inner space of the seat body of the push rod body is provided with a gear set, and the outer part of the seat body is combined with the gear set to be driven a rotating driving portion, and a lead screw of the transmission mechanism is coupled to the gear set, and an extended outer tube is coupled in front of the seat body, and a hollow inner portion of the extending outer tube is formed to allow the lead screw to penetrate therein a channel in a suspended state, and an axially cross-section of the extending outer tube surface is connected to the sliding groove in the channel; the linking component is a docking seat including a channel located in the extending outer tube, and has a screwing inside the docking seat On the lead screw, the lead screw can be rotated to push the screw hole which makes the docking seat axially linearly displaced, and the guide rail which extends radially outward from the center of the docking seat and slides in the sliding groove board. The pusher structure according to the first aspect of the invention, wherein the seat body of the pusher body has an opening formed at two sides of the front and rear of the receiving space, and the second body is configured at an opening in front of the receiving space. The outer casing is combined with an extended outer tube, and the sliding groove axially disposed at the center of the top surface of the extended outer tube extends from one end surface of the extended outer tube to the other end surface. The push rod structure according to claim 2, wherein the seat is located at an opening behind the accommodating space, and the second outer casing of the seat body is combined with the connecting seat having the first engaging hole, and is connected by the connecting seat. The bracket is coupled to the bracket of the external device, and the bracket base has opposite fixing plates, and the second engaging holes of the two fixing plates are provided with pins for forming a movable pivoting connection through the first engaging holes. The push rod structure according to claim 1, wherein the gear set of the push rod body has at least one driving gear, and is provided at a motor side of the driving portion to The body is engaged with the drive shaft that drives the gear, and the lead screw and the motor are disposed perpendicular or parallel to each other. The push rod structure of claim 1, wherein the extension outer tube of the push rod body is located at an inner wall surface of the passage, and is provided with a plurality of convex rails, and is disposed on the outer surface of the docking seat of the linkage assembly. The rail is in the form of a plurality of rails corresponding to the sliding displacement. The push rod structure according to claim 5, wherein the passage of the extended outer tube is located at a position below the convex rail, and is horizontally disposed with a horizontal limit baffle between the limit baffle and the bottom of the extended outer tube. The positioning slot formed by the switch assembly is vertically coupled with the positioning plate of the switch assembly, and the front and rear sides of the positioning plate are provided with limit switches, and the bottom of the docking seat is provided with a sliding displacement against the limit baffle. The slider, and extending downward at the bottom side of the docking seat, has an pushing block for pushing on the limit switch to trigger the action. The push rod structure according to claim 1, wherein the extension outer tube of the push rod body is combined with a cover body and a fixed seat respectively at the front and rear sides of the passage, and is provided on the cover body. The end of the lead screw penetrates into a shaft hole forming a movable pivot joint, and the fixing seat is provided with a through hole through which the lead screw passes to extend outside the seat. The push rod structure according to claim 1, wherein the linking component is located above the rail plate of the docking seat, and is provided with a first connecting hole, and a connecting rod of the external device is connected to the docking seat, and the connecting rod The upper connecting plate has an opposite engaging plate, and the second connecting hole of the two connecting plates is provided with a positioning member for forming a movable pivotal connection through the first connecting hole.