CN115123030A

CN115123030A - Electric long sliding rail for automobile seat

Info

Publication number: CN115123030A
Application number: CN202210897640.1A
Authority: CN
Inventors: 邹耀忠; 杨广; 宋嗣新
Original assignee: Jiangsu Zhongming Xianghe Seiko Co ltd
Current assignee: Jiangsu Zhongming Xianghe Seiko Co ltd
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2022-09-30

Abstract

The utility model provides an automobile seat is with electronic long slide rail, including a pair of guide rail, a pair of screw rod of fixing in the guide rail, a pair of gliding slide of screw rod direction of following, a drive arrangement who fixes between two slides, both sides are equipped with the gap eliminating device respectively around the slide, the gap eliminating device is including the gap eliminating fixed plate, a pair of establish respectively about the gap eliminating fixed plate both ends and the middle part with the fixed plate tip articulated left side, right regulating plate and establish the spring post on the gap eliminating fixed plate, left side, the fixed plate is extended to the one end of right regulating plate and establish left and right regulating plate gyro wheel on extending the end respectively, left side, the other end of right regulating plate constitutes respectively has left and right regulating plate spring fixed slot, the both ends tip of spring post presses left and right in regulating plate spring fixed slot, left and right regulating plate gyro wheel supports respectively under the elastic force effect of spring post and leans on the inside wall of guide rail. The advantages are that: the generated clearance can be automatically eliminated, the stability of the slide rail is improved, the service life of the slide rail is prolonged, and the lead is prevented from being blocked and interfered with each other.

Description

Electric long sliding rail for automobile seat

Technical Field

The invention belongs to the technical field of automobile seat accessories, and particularly relates to an electric long sliding rail for an automobile seat.

Background

The automobile seat is one of the most important parts for determining the comfort level of an automobile, the current automobile seat generally has the functions of front-back adjustment, height adjustment and angle adjustment, wherein the front-back adjustment function is mainly completed by a manual or electric slide rail, but along with the prolonging of the service time of the slide rail, a gap may be generated between a rail and a sliding mechanism due to deformation, abrasion and the like, particularly for some slide rails with long travel, the abrasion is serious, the gap not only can influence the normal sliding of the slide rail, but also can cause the seat to vibrate in the driving process of the automobile, and the comfort level of the automobile seat is seriously influenced. In addition, the slide rail can follow the removal at the removal in-process wire, to the great slide rail of stroke, appears the wire clamp on the track and the condition that the wire hinders each other easily, in case the wire is impaired can appear electric leakage or outage phenomenon, so have potential safety hazard, the unable normal work scheduling problem of slide rail.

In the prior art, as provided in chinese patent application publication No. CN112537231A, "an automatic slide rail device for a car seat" includes a pair of slide rails, a screw is disposed in each slide rail, a seat sliding frame is disposed on each slide rail, and a driving device is disposed between the two seat sliding frames, wherein a gap eliminating block is disposed on the seat sliding frame to eliminate a gap between each slide rail and the seat sliding frame. Although the above-mentioned publications can greatly improve the stability of the slide rail, the anti-backlash block is deformed and worn with the increase of the service time, and the above-mentioned problem caused by the clearance still exists; secondly, the motor on the driving device can slide along with the seat sliding frame, and the wires of the motor lack tube bundles, so that the wires are easy to be damaged to cause the problems of electric leakage, power failure and the like which cannot work normally.

In view of the above, there is a need for an electric long slide rail for a car seat, which has a simple structure and high stability, can automatically eliminate the sliding gap in the guide rail, and is beneficial to moving and bundling the wires. The applicant has made an advantageous design for this purpose, in the context of which the solution to be described below is made.

Disclosure of Invention

The invention aims to provide an electric long sliding rail for an automobile seat, which is beneficial to optimizing a gap eliminating structure between the sliding rail and a sliding seat, so that the generated gap can be automatically eliminated to improve the stability of the sliding rail and prolong the service life of the sliding rail, and is beneficial to improving the connecting structure of a guide wire of the sliding rail to avoid the problems of jamming and mutual interference of the guide wire in the sliding process of the sliding rail.

The invention aims to achieve the aim that the electric long slide rail for the automobile seat comprises a pair of guide rails arranged in parallel, a pair of screw rods fixed in the guide rails respectively and extending along the length direction, a pair of slide seats arranged in the guide rails respectively and sliding along the screw rod direction, and a driving device fixed between the two slide seats and driving the slide seats to move, wherein the front side and the rear side of each slide seat are respectively and oppositely provided with a gap eliminating device, each gap eliminating device comprises a gap eliminating fixing plate, a left adjusting plate, a right adjusting plate and a spring column arranged on the gap eliminating fixing plate, the left adjusting plate and the right adjusting plate are arranged at the left end and the right end of the gap eliminating fixing plate respectively, the middle part of each gap eliminating device is hinged with the end part of the fixing plate, one end of each left adjusting plate and one end of each right adjusting plate extend out of the fixing plate respectively, a left adjusting plate roller and one right adjusting plate roller are arranged at the extending ends of the fixing plate and the left adjusting plate and the right adjusting plate respectively form a left adjusting plate spring fixing groove and a right adjusting plate spring fixing groove The spring fixing groove, the both ends tip of spring post length direction presses respectively the left regulating plate spring fixing groove and right regulating plate spring fixing groove in, left regulating plate gyro wheel and right regulating plate gyro wheel support respectively under the spring action of spring post and lean on the inside wall of guide rail.

In a specific embodiment of the invention, the opening of the guide rail is upward and is formed with a bottom cavity and a pair of side cavities respectively formed at two sides above the bottom cavity, the sliding seat comprises a sliding seat frame, a pair of seat fixing seats fixedly clamped at two ends of the sliding seat frame in the length direction, and a gear box fixed in the middle of the sliding seat frame and in threaded transmission connection with the screw rod, the gear box is in transmission connection with the driving device, the sliding seat frame and the seat fixing seats are positioned in the bottom cavity, seat fixing seat pulleys supported on the lower side walls of the side cavities at two sides are respectively formed at the front side and the rear side of the seat fixing seats, and the left adjusting plate roller and the right adjusting plate roller are respectively abutted against the upper side walls of the corresponding side cavities.

In another specific embodiment of the invention, the gap eliminating fixed plate comprises a bending plate and a mounting plate which is connected with the lower side surface of the bending plate and extends obliquely upwards, the bending plate is respectively fixed at the middle position of one side of the sliding seat, a left adjusting plate rotating shaft and a right adjusting plate rotating shaft are respectively arranged at two ends of the mounting plate, the middle parts of the left adjusting plate and the right adjusting plate respectively rotate around the left adjusting plate rotating shaft and the right adjusting plate rotating shaft, a spring middle clamping plate with an upward opening is bent at the middle part of the mounting plate, a spring side clamping plate with a downward opening is respectively bent at two sides of the spring middle clamping plate of the mounting plate, the middle part of the spring column is placed on the spring middle clamping plate, the near end parts at two ends in the length direction of the spring column overcome the elasticity through the spring middle clamping plate and are downwards clamped and fixed below the corresponding spring side clamping plate respectively, the spring column is characterized in that the end parts of the two ends in the length direction of the spring column are upwards clamped and fixed in a left adjusting plate spring fixing groove and a right adjusting plate spring fixing groove respectively by overcoming elasticity through spring side clamping plates, and the left adjusting plate roller and the right adjusting plate roller always keep the upward overturning trend under the elastic action of the spring column.

In another specific embodiment of the invention, the gear box comprises a pair of gear boxes which are oppositely arranged, at least one transmission gear which is arranged in the gear box in a matching way along the height direction and rotates, a driving gear which is arranged above the transmission gear in a rotating way, a driven gear which is arranged below the transmission gear in a rotating way, and a pair of fixed shells which are respectively clamped and fixed at the left side and the right side of the two gear boxes, the left side and the right side of the two gear boxes are respectively extended with a gear box fixing plate, the fixed shells are respectively provided with a fixed clamping groove at the side facing the gear boxes, the gear box fixing plates at the adjacent sides of the two gear boxes are respectively clamped and fixed in the fixed clamping grooves of the fixed shells at the corresponding sides, the upper ends of the opposite sides of the two gear boxes are respectively provided with a driving gear cavity which is mutually matched, and the opposite sides of the two gear boxes are respectively provided with at least one transmission gear cavity along the height direction below the driving gear cavity, the lower end of one side face, opposite to the two gear box shells, of each gear box shell is respectively provided with a matched driven gear cavity below the transmission gear cavity, the left side and the right side of each driven gear cavity are respectively provided with a screw abdicating cavity communicated with the driven gear cavity, the driving gear is rotationally supported in the driving gear cavity, one end of the driving gear is in transmission connection with the driving device, the driving gears are rotationally supported in the corresponding driving gear cavities and are meshed with each other, the uppermost driving gear is meshed with the driving gear, the lowermost driving gear is meshed with the driven gear, the driven gear is rotationally supported in the driven gear cavity, a screw hole matched with the screw rod is formed in the axial middle of the driven gear in the abdicating cavity relative to the screw rod, the fixing shell is respectively provided with a fixing shell screw abdicating hole in the position relative to the screw rod, and the gear box frame upwards forms a bayonet gear box, the gearbox is arranged in the gearbox bayonet and the fixed shell is clamped and fixed on the gearbox shell by virtue of a gearbox frame, the gearbox frame is respectively provided with a gearbox frame screw rod abdicating groove at the position corresponding to the screw rod, and the left side and the right side of the upper end of the gearbox frame are respectively provided with a gearbox frame screw hole; the driving device comprises a motor base, a motor fixed on the motor base and a pair of motor seat frames fixed at two ends of the motor base respectively, a motor shaft extending forwards and backwards respectively is formed on the motor, the end parts of two ends of the motor shaft are fixedly connected with a driving gear corresponding to one side respectively, a gear box support is fixed at the middle part of the sliding seat frame, a driving support is fixed above the gear box support, a pair of driving support screws are arranged on the driving support respectively, the driving support screws sequentially penetrate through the driving support, the gear box support and a gear box frame screw hole from top to bottom and are fastened and connected, the driving support is fixed with the motor base frame corresponding to one side respectively, and a reinforcing rib is fixed between the motor base frames.

In a further specific embodiment of the present invention, the left and right ends of the slide carriage respectively form a slide carriage bayonet, the seat fixing seat is respectively fastened to the slide carriage bayonet, the lower end of the slide carriage in the height direction forms a screw abdicating cavity with an opening at the bottom, the lower end of the gear box extends into the screw abdicating cavity, and the guide rail is fixed with a sliding groove in sliding fit with the opening edge of the screw abdicating cavity along the length direction at a position corresponding to the screw abdicating cavity.

In yet another embodiment of the present invention, a wiring box is disposed at the right end of one of the pair of guide rails, the wiring box forms a letter "J" shape and has a bent end communicating with the guide rail and the other end disposed between the two guide rails and extending to the left, a box cavity is formed on the wiring box, a box cover is disposed on the box cavity, a wire inlet is formed at the bent end of the box cavity and a wire outlet is formed at a position between the bent end and the wiring box, a pair of arc-shaped partition plates are formed at the bent end of the box cavity, fixing legs for fixing the wiring box are disposed at intervals around the wiring box, a wire holder fixed to the left end of the slide is disposed in the guide rail connected to the wiring box, and the wire holder collects a wire introduced into the wiring box and guides the wire up to a position of the driving device.

In a further specific embodiment of the present invention, a set of rail fixing seats is disposed at intervals along the length direction at the bottom of the rail, a pair of rail fixing seat holes is respectively formed on the rail fixing seats, and a set of positioning columns extending downward is disposed at intervals along the length direction at the bottom of the rail.

In a more specific embodiment of the present invention, the two ends of the screw in the length direction are respectively provided with a screw seat, and the screw seats are respectively fixed at the bottom of the inner side of the guide rail.

In yet another specific embodiment of the present invention, a zipper seat is fastened to each of the left and right ends of the sliding seat, a zipper head is disposed on each zipper seat, and a dustproof zipper matched with the zipper head is disposed at the upper opening of the guide rail.

In a further embodiment of the present invention, the height of the upper end of the seat fixing seat is higher than the height of the upper ends of the sliding seat and the driving device, and a seat fixing hole is formed on a side surface of the upper end of the seat fixing seat near the top and far away from the corresponding sliding seat frame.

After adopting the structure, the invention has the advantages that: firstly, because the structure that the anti-backlash devices are arranged on the two sides of the sliding seat and the sliding seat is tensioned by the matching of the roller and the spring column is adopted, the gap can be automatically eliminated by the rotation of the roller, the stability of the sliding rail is effectively improved, and the service life of the sliding rail is prolonged; secondly, owing to adopted the structure that the wiring box cooperates the wire seat to draw in the wire and receive and release the wire through the wiring box, therefore avoided the dead and mutual problem of hindering of card that the wire produced at the slide rail slip in-process effectively, further improved the stability of slide rail and increased the life of slide rail.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the anti-backlash device of the present invention.

Fig. 3 is a schematic structural diagram of the guide rail and the slider according to the present invention.

Fig. 4 is a schematic structural diagram of the slider and the driving device according to the present invention.

FIG. 5 is a schematic view of the structure of the gear box of the present invention.

Fig. 6 is a schematic structural view of the guide rail and the wiring box of the present invention.

In the figure: 1. the screw rod positioning device comprises a guide rail, 11 screw rods, 111 screw rod seats, 12 bottom cavities, 13 side cavities, 14 guide rail fixing seats, 141 guide rail fixing seat holes and 15 positioning columns; 2. the sliding seat comprises a sliding seat, 21 sliding seat frames, 211 sliding seat frame bayonets, 212 screw abdicating cavities, 213 sliding grooves, 22 seat fixing seats, 221 seat fixing seat pulleys, 222 seat fixing holes, 23 gear boxes, 231 gear box frames, 2311 gear box bayonets, 2312 gear box frame screw abdicating grooves, 2313 gear box frame screw holes, 232 transmission gears, 233 driving gears, 234 driven gears, 2341 screw holes, 235 fixing shells, 2351 fixing clamping grooves, 2352 fixing shell screw abdicating holes, 236 gear box shells, 2361 gear box fixing plates, 2362 driving gear cavities, 2363 transmission gear cavities, 2364 driven gear cavities, 23641 screw abdicating cavities, 24 gear box supports, 25 driving supports, 26 driving support screws, 27 zipper seats, 271 zipper heads, 272 dustproof zippers; 3. the motor comprises a driving device, 31, a motor base, 311, a motor base frame, 312, a reinforcing rib, 32, a motor and 321, a motor shaft; 4. the anti-backlash device comprises a anti-backlash device 41, an anti-backlash fixing plate 411, a bending plate 412, a mounting plate 4121, a spring middle clamping plate 4122, a spring side clamping plate 42, a left adjusting plate 421, a left adjusting plate roller 422, a left adjusting plate spring fixing groove 423, a left adjusting plate rotating shaft 43, a right adjusting plate 431, a right adjusting plate roller 432, a right adjusting plate spring fixing groove 433, a right adjusting plate rotating shaft 44 and a spring column; 5. a wire holder; 6. wiring box, 61 box cavity, 611 wire inlet, 612 wire outlet, 613 arc splitter plate, 62 box cover, 63 wiring box fixing pin.

Detailed Description

In order to clearly understand the technical spirit and the advantages of the present invention, the following detailed description is given by way of examples, but the description of the examples is not intended to limit the scope of the present invention, and any equivalent changes made according to the present inventive concept, which are merely in form and not in substance, should be considered as the scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position corresponding to that shown in fig. 1, and thus should not be construed as particularly limiting the technical solution provided by the present invention.

Referring to fig. 1, 2 and 3 in combination with fig. 4, the present invention relates to an electric long slide rail for a car seat, which includes a pair of parallel guide rails 1, a pair of screws 11 fixed in the guide rails 1 respectively and extending along the length direction, a pair of slides 2 arranged in the guide rails 1 respectively and sliding along the screws 11, and a driving device 3 fixed between the two slides 2 and driving the slides 2 to move.

The technical key points of the technical scheme provided by the invention are as follows: the front and rear sides of the sliding base 2 are respectively provided with a gap eliminating device 4 oppositely, the gap eliminating device 4 comprises a gap eliminating fixing plate 41, a pair of left and right adjusting

plates

42 and 43 which are respectively arranged at the left and right ends of the gap eliminating fixing plate 41 and the middle part of which is hinged with the end part of the fixing plate 41, and a spring column 44 arranged on the gap eliminating fixing plate 41, one ends of the left and right adjusting

plates

42 and 43 respectively extend out of the fixing plate 41 and are respectively rotatably provided with a left adjusting plate roller 421 and a right adjusting plate roller 431 at the extending ends, the other ends of the left and right adjusting

plates

42 and 43 respectively form a left adjusting plate spring fixing groove 422 and a right adjusting plate spring fixing groove 432, the two end parts of the spring column 44 in the length direction are respectively pressed in the left and right adjusting plate

spring fixing grooves

422 and 432, and the left and right adjusting

plates rollers

421 and 431 respectively and tightly abut against under the elastic force of the spring column 44 On the inner side wall of the guide rail 1. The anti-backlash fixing plate 41 includes a bending plate 411 and a mounting plate 412 connected to the lower side of the bending plate 411 and extending obliquely upward, the bending plate 411 is welded and fixed to the middle of one side of the sliding seat 2, the mounting plate 412 is provided with a left adjusting plate rotating shaft 423 and a right adjusting plate rotating shaft 433 at two ends thereof, the middle of the left adjusting plate 42 and the middle of the right adjusting plate 43 rotate around the left adjusting plate rotating shaft 423 and the right adjusting plate rotating shaft 433, the middle of the mounting plate 412 is bent with a spring middle plate 4121 with an upward opening, the mounting plate 412 is bent with a spring side plate 4122 with a downward opening at two sides of the spring middle plate 4121, the middle of the spring column 44 is placed on the spring plate middle 4121, the proximal end portions of the spring column 44 in the length direction are clamped downward below the corresponding spring side plates 4122 by overcoming the elastic force through the spring middle plate 4121, the ends of the two ends of the spring column 44 in the length direction are fastened upwards to the left adjustment plate spring fixing groove 422 and the right adjustment plate spring fixing groove 432 through the spring side fastening plates 4122 against the elastic force, and the left adjustment plate roller 421 and the right adjustment plate roller 431 always keep the tendency of turning upwards under the elastic force of the spring column 44 and tightly abut against the inner wall of the guide rail 1. The height of the upper end of the seat fixing seat 22 is higher than the height of the upper ends of the sliding seat 2 and the driving device 3, and a seat fixing hole 222 is formed on a side surface of the upper end of the seat fixing seat 22 close to the top and far away from the corresponding sliding seat frame 21.

Further, the opening of the guide rail 1 is upward and is formed with a bottom cavity 12 and a pair of side cavities 13 respectively formed at two sides above the bottom cavity 12, the sliding seat 2 includes a sliding seat frame 21, a pair of seat fixing seats 22 fastened at two ends of the sliding seat frame 21 in the length direction, and a gear box 23 fixed at the middle of the sliding seat frame 21 and in threaded transmission connection with the screw 11, the gear box 23 is in transmission connection with the driving device 3, the sliding seat frame 21 and the seat fixing seat 22 are located in the bottom cavity 12, a seat fixing seat pulley 221 supported on the lower side walls of the side cavities 13 at two sides is respectively formed at the front and the rear sides of the seat fixing seat 22, and the left adjusting plate roller 421 and the right adjusting plate roller 431 are respectively abutted against the upper side walls of the corresponding side cavities 13.

Referring to fig. 1 and 4 in conjunction with fig. 5, the gear box 23 includes a pair of gear box housings 236 disposed opposite to each other, at least one transmission gear 232 disposed in the gear box housings 236 to rotate along a height direction, a driving gear 233 disposed above the transmission gear 232 to rotate, a driven gear 234 disposed below the transmission gear 232 to rotate, and a pair of fixing housings 235 fastened to left and right sides of the gear box housings 236, respectively, the gear box housings 236 having a gear box fixing plate 2361 extending from left and right sides thereof, respectively, the fixing housings 235 having a fixing slot 2351 formed on a side facing the gear box housing 236, the gear box fixing plates 2361 on adjacent sides of the gear box housings 236 being fastened to the fixing slots 2351 of the fixing housing 235 on corresponding sides, and a driving gear cavity 2362 formed on an upper end of an opposite side of the gear box housings 236 to each other, at least one transmission gear cavity 2363 is respectively formed below the driving gear cavity 2362 on the opposite side surfaces of the two gear box housings 236 along the height direction, in this embodiment, two transmission gear cavities 2363 are illustrated, a matched driven gear cavity 2364 is respectively formed below the transmission gear cavity 2363 on the lower end of the opposite side surfaces of the two gear box housings 236, a screw abdicating cavity 23641 communicated with the driven gear cavity 2364 is respectively formed on the left side and the right side of the driven gear cavity 2364, the driving gear 233 is rotatably supported in the driving gear cavity 2362 and one end thereof is in transmission connection with the driving device 3, the transmission gear 232 is rotatably supported in the corresponding transmission gear cavity 2363 and is engaged with each other, the transmission gear 232 at the uppermost end is engaged with the driving gear 233, the transmission gear 232 at the lowermost end is engaged with the driven gear 234, the driven gear 234 is rotatably supported in the driven gear cavity 2364, a screw hole 2341 matched with the screw rod 11 is formed in the axial middle of the driven gear 234 at the position corresponding to the screw rod abdicating cavity 23641, a fixing shell screw abdicating hole 2352 is respectively formed in the position corresponding to the screw rod 12 of the fixing shell 235, a gear box bayonet 2311 is formed upwards from the gear box frame 231, the gear box 23 is arranged in the gear box bayonet 2311, the fixing shell 235 is clamped and fixed on the gear box 236 by the gear box frame 231, a gear box frame screw abdicating groove 2312 is respectively formed in the position corresponding to the screw rod 11 of the gear box frame 231, and a gear box frame screw hole 2313 is respectively formed in the left side and the right side of the upper end of the gear box frame 231; the driving device 3 comprises a motor base 31, a motor 32 fixed on the motor base 31, and a pair of motor base frames 311 fixed on two ends of the motor base 31, the motor 32 is formed with a motor shaft 321 extending back and forth, the end of the motor shaft 321 is fixedly connected to the driving gear 233 on the corresponding side, a gear box bracket 24 is fixed to the middle of the carriage frame 21 through a bolt, a driving bracket 25 is fixed above the gear box bracket 24, a pair of driving bracket screws 26 are respectively arranged on the driving bracket 25, the driving bracket screw 26 sequentially penetrates through the driving bracket 25, the gear box bracket 24 and the gear box bracket screw hole 2313 from top to bottom to be fastened and connected, the driving bracket 25 is respectively fixed with the motor base bracket 311 on the corresponding side through bolts, and a reinforcing rib 312 is further welded and fixed between the motor base brackets 311.

Referring to fig. 1 and fig. 4, a slide holder bayonet 211 is formed at each of left and right ends of the slide holder 21, the seat fixing seat 22 is clamped and fixed to the slide holder bayonet 211, a screw abdicating cavity 212 with an opening at the bottom is formed at a lower end of the slide holder 21 in the height direction, a lower end of the gear box 23 extends into the screw abdicating cavity 212, and a sliding groove 213 slidably engaged with an opening edge of the screw abdicating cavity 212 is fixed to the guide rail 1 along the length direction at a position corresponding to the screw abdicating cavity 212.

Referring to fig. 1 in conjunction with fig. 6, a wiring box 6 is disposed at the right end of one of the pair of guide rails 1, the wiring box 6 forms a letter "J" shaped structure and the bent end of the wiring box 6 is connected to the guide rail 1, the other end of the wiring box 6 is disposed between the two guide rails 1 and extends to the left, a box cavity 61 is formed on the wiring box 6, a box cover 62 is disposed on the box cavity 61, a wire inlet 611 is formed at the bent end of the box cavity 61, a wire outlet 612 is formed at a position between the bent end and the wiring box 6, a pair of arc-shaped partition plates 613 are formed at the bent end of the box cavity 61, fixing legs 63 for fixing the wiring box are disposed at intervals around the wiring box 6, a wire holder 5 fixed to the left end of the sliding base 2 is disposed in the guide rail 1 connected to the wiring box 6, and is specifically fixed to the right seat fixing base 22 of the sliding base 2, the wire holder 5 draws the wire passing through the wiring box 6 and guides the wire upwards to the position of the driving device 3 to be electrically connected with the motor 32, when the wire moves leftwards along with the wire holder 5 and the sliding seat 2, the wire coiled in the box cavity 61 enters the guide rail 1 through the wire inlet 611 to compensate the moving distance of the wire, and when the wire moves rightwards along with the wire holder 5 and the sliding seat 2, the wire enters the wire inlet 611 and slides into the box cavity 61 along the cambered surface of the arc-shaped partition plate 613.

Referring to fig. 1, a set of rail holders 14 is disposed at intervals along the length direction at the bottom of the rail 1, a pair of rail holder holes 141 is respectively formed on the rail holders 14, and a set of positioning posts 15 extending downward is disposed at intervals along the length direction at the bottom of the rail 1. The two ends of the screw 11 in the length direction are respectively provided with a screw seat 111, and the screw seats 111 are respectively fixed at the bottom of the inner side of the guide rail 1. Specifically, the screw seat 111 is fixed to the bottom chamber 12. A zipper base 27 is fastened to each of the left and right ends of the slide base 2, a zipper head 271 is disposed on each zipper base 27, and a dustproof zipper 272 matched with the zipper head 271 is disposed at the upper opening of the guide rail 1. The zipper seats 27 are respectively fastened to the seat fixing seats 22, wherein the zipper seats 27 of the seat fixing seats 22 fixed to the wire seats 5 are fastened to the wire seats 5.

Please refer to fig. 1 to 6: the applicant briefly describes the working principle of the technical scheme provided by the invention: firstly, during assembly, the guide rail 1 is fixed on an automobile chassis through the guide rail fixing seat 14 and the positioning column 15, then the wiring box 6 is connected with the corresponding guide rail 1 and fixed on the automobile chassis through the wiring box fixing feet 63, then the sliding seat 2 provided with the anti-backlash device 4 and the screw 11 are installed into the corresponding guide rail 1, then the driving device 3 is fixed and connected with the two sliding seats 2 in a driving way, a power line enters the box cavity 61 through the wire outlet 612 of the wiring box 6 and bypasses the arc-shaped partition plate 613, then enters the guide rail 1 from the wire inlet 611 and converges into the wire seat 5 for fixing and electrically connecting with the motor 32, and finally the automobile seat is placed on the sliding seat 2 and is installed and fixed through the seat fixing hole 222. When a driver and an occupant move the seat back and forth according to actual riding experience, the motor 32 is driven to work by operating the external controller and the power cord, the motor shaft 321 of the motor 32 rotates to drive the driving gear 233 to rotate, the driving gear 233 is driven to the driven gear 234 step by step through the transmission gear 232, the driven gear 234 rotates to enable the screw hole 2341 to rotate on the screw rod 11, and finally the sliding seat 2 moves back and forth on the screw rod 11. The slide 2 is at the left regulating plate gyro wheel 421 and the right regulating plate gyro wheel 431 that remove the in-process gap device 4 and keep the trend of upwards overturning and lean on the inner wall of guide rail 1 closely all the time under the spring action of spring post 44, even guide rail 1 produces deformation or left regulating plate gyro wheel 421 and right regulating plate gyro wheel 431 produce wearing and tearing, left regulating plate gyro wheel 421 and right regulating plate gyro wheel 431 also can eliminate the clearance and the compensation left regulating plate gyro wheel 421 and the clearance that right regulating plate gyro wheel 431 wearing and tearing produced of deformation position department under the spring action of spring post 44, reach the purpose of automatic clearance elimination. In addition, the power cord on the motor 32 is restrained by the wire seat 5 and is drawn out and stored through the wiring box 6 during the moving process of the sliding seat 2, and the situations that the wires are blocked and mutually hindered during the sliding process are effectively avoided.

In conclusion, the technical scheme provided by the invention overcomes the defects in the prior art, successfully completes the invention task and truly realizes the technical effects of the applicant in the technical effect column.

Claims

1. The utility model provides a long slide rail of electric for car seat, includes a pair of mutual parallel arrangement's guide rail (1), a pair of screw rod (11) of fixing respectively in guide rail (1) and extending along length direction, a pair of slide (2) that set up respectively in guide rail (1) and slide along screw rod (11) direction, one fix between two slide (2) and drive arrangement (3) that slide (2) removed, its characterized in that: the front side and the rear side of the sliding seat (2) are respectively and relatively provided with a gap eliminating device (4), the gap eliminating device (4) comprises a gap eliminating fixing plate (41), a pair of left adjusting plate (42) and right adjusting plate (43) which are respectively arranged at the left end and the right end of the gap eliminating fixing plate (41) and are hinged to the end portions of the fixing plate (41) in the middle and a spring column (44) arranged on the gap eliminating fixing plate (41), one end of the left adjusting plate (42) and one end of the right adjusting plate (43) respectively extend out of the fixing plate (41) and are respectively and rotatably provided with a left adjusting plate roller (421) and a right adjusting plate roller (431) at the extending end, the other ends of the left adjusting plate (42) and the right adjusting plate (43) respectively form a left adjusting plate spring fixing groove (422) and a right adjusting plate spring fixing groove (432), and the two end portions of the spring column (44) in the length direction are respectively pressed against the left adjusting plate spring fixing groove (422) and the right adjusting plate spring fixing groove (432) respectively In the fixed groove (432), the left adjusting plate roller (421) and the right adjusting plate roller (431) respectively lean against the inner side wall of the guide rail (1) under the elastic force action of the spring column (44).

2. The electric long sliding track for the seat of the automobile according to claim 1, characterized in that the opening of the guide rail (1) is upward and is formed with a bottom cavity (12) and a pair of side cavities (13) respectively formed at two sides above the bottom cavity (12), the sliding seat (2) comprises a sliding seat frame (21), a pair of seat fixing seats (22) fastened at two ends of the sliding seat frame (21) in the length direction, and a gear box (23) fixed at the middle of the sliding seat frame (21) and in threaded transmission connection with the screw (11), the gear box (23) is in transmission connection with the driving device (3), the sliding seat frame (21) and the seat fixing seats (22) are located in the bottom cavity (12), the front side and the rear side of the seat fixing seat (22) are respectively formed with a seat fixing seat pulley (221) supported on the lower side wall of the side cavity (13), the left adjusting plate roller (421) and the right adjusting plate (431) are respectively supported on the upper side wall of the corresponding side cavity (13) .

3. The electric long sliding rail for the car seat according to claim 1, characterized in that the anti-backlash fixing plate (41) comprises a bending plate (411) and a mounting plate (412) connected with the lower side of the bending plate (411) and extending obliquely upward, the bending plate (411) is respectively fixed at the middle position of one side of the sliding seat (2), both ends of the mounting plate (412) are respectively provided with a left adjusting plate rotating shaft (423) and a right adjusting plate rotating shaft (433), the middle parts of the left adjusting plate (42) and the right adjusting plate (43) respectively rotate around the left adjusting plate rotating shaft (423) and the right adjusting plate rotating shaft (433), the middle part of the mounting plate (412) is bent to have an upward opening spring middle catch plate (4121), the mounting plate (412) is bent at both sides of the spring middle catch plate (4121) to respectively have a downward opening spring side catch plate (4122), the middle part of the spring column (44) is placed on a spring middle clamping plate (4121), the near end parts of the two ends of the spring column (44) in the length direction overcome elasticity through the spring middle clamping plate (4121) and are downwards clamped and fixed below the corresponding spring side clamping plate (4122) respectively, the end parts of the two ends of the spring column (44) in the length direction overcome elasticity through the spring side clamping plate (4122) and are upwards clamped and fixed into a left adjusting plate spring fixing groove (422) and a right adjusting plate spring fixing groove (432) respectively, and the left adjusting plate roller (421) and the right adjusting plate roller (431) always keep the upward overturning trend under the elasticity action of the spring column (44).

4. The electric long sliding rail for the seat of the automobile according to claim 1, wherein the gear box (23) comprises a pair of gear box housings (236) arranged oppositely, at least one transmission gear (232) arranged in the gear box housings (236) along the height direction in a matching manner and rotating, a driving gear (233) arranged above the transmission gear (232) in a rotating manner, a driven gear (234) arranged below the transmission gear (232) in a rotating manner, and a pair of fixed shells (235) clamped and fixed at the left and right sides of the two gear box housings (236) respectively, the two gear box housings (236) are respectively extended at the left and right sides with a gear box housing fixing plate (2361), the fixed shells (235) are respectively formed with a fixed clamping groove (2351) at one side facing the gear box housings (236), the gear box housing fixing plates (2361) at the adjacent sides of the two gear box housings (236) are respectively clamped and fixed in the fixed clamping grooves (2351) of the fixed shell (235) at the corresponding side, the upper ends of opposite side surfaces of the two gear box shells (236) are respectively formed with a driving gear cavity (2362) which are matched with each other, the lower ends of the opposite side surfaces of the two gear box shells (236) are respectively formed with at least one transmission gear cavity (2363) along the height direction below the driving gear cavity (2362), the lower ends of the opposite side surfaces of the two gear box shells (236) are respectively formed with a matched driven gear cavity (2364) below the transmission gear cavity (2363), the left side and the right side of the driven gear cavity (2364) are respectively provided with a screw abdication cavity (23641) which is communicated with the driven gear cavity (2364), the driving gear (233) is rotatably supported in the driving gear cavity (2362) and one end of the driving gear is in transmission connection with the driving device (3), the transmission gear (232) is rotatably supported in the corresponding transmission gear cavity (2363) and is meshed with each other, and the transmission gear (232) at the uppermost end is meshed with the driving gear (233), the lowermost drive gear (232) meshes with a driven gear (234), the driven gear (234) being rotatably supported in a driven gear chamber (2364), the axial middle of the driven gear (234) is provided with a screw hole (2341) matched with the screw rod (11) at a position opposite to the screw rod abdicating cavity (23641), the fixed shell (235) is respectively provided with a fixed shell screw abdicating hole (2352) at the position corresponding to the screw (12), the gear box frame (231) is upwards formed with a gear box bayonet (2311), the gear box (23) is arranged in the gear box bayonet (2311) and the fixed shell (235) is clamped and fixed on the gear box shell (236) by the gear box frame (231), the gear box frame (231) is respectively provided with a gear box frame screw rod abdicating groove (2312) at the position corresponding to the screw rod (11), the left side and the right side of the upper end of the gear box frame (231) are respectively provided with a gear box frame screw hole (2313); the driving device (3) comprises a motor base (31), a motor (32) fixed on the motor base (31) and a pair of motor seat frames (311) fixed at two ends of the motor base (31) respectively, the motor (32) is provided with a motor shaft (321) extending forwards and backwards respectively, the end parts of two ends of the motor shaft (321) are fixedly connected with a driving gear (233) at one corresponding side respectively, the middle part of the sliding seat frame (21) is fixed with a gear box bracket (24), a driving bracket (25) is fixed above the gear box bracket (24), the driving bracket (25) is provided with a pair of driving bracket screws (26) respectively, the driving bracket screws (26) sequentially penetrate through the driving bracket (25) and the gear box bracket (24) from top to bottom and are fixedly connected with a screw hole (2313) of the gear box bracket, the driving bracket (25) is fixed with the motor seat frame (311) at one corresponding side respectively, a reinforcing rib (312) is also fixed between the motor seat frames (311).

5. The electric long slide rail for the automobile seat according to claim 1, wherein the slide seat frame (21) is provided with a slide seat frame bayonet (211) at each of the left and right ends thereof, the seat fixing seat (22) is fixed to the slide seat frame bayonet (211) in a clamped manner, the slide seat frame (21) is provided with a screw abdicating cavity (212) with an opening at the bottom at the lower end in the height direction thereof, the gear box (23) extends into the screw abdicating cavity (212) at the lower end thereof, and the guide rail (1) is provided with a slide groove (213) which is slidably fitted with the opening edge of the screw abdicating cavity (212) at a position corresponding to the screw abdicating cavity (212) in the length direction thereof.

6. The electric long slide rail for the car seat according to claim 1, characterized in that a wiring box (6) is provided at the right end of one of the pair of guide rails (1), the wiring box (6) is formed in a letter "J" shape and has a bent end communicating with the guide rail (1) and the other end disposed between the two guide rails (1) and extending to the left, a box cavity (61) is formed on the wiring box (6), a box cover (62) is provided on the box cavity (61), a wire inlet (611) is formed at the bent end of the box cavity (61), a wire outlet (612) is formed at the position between the bent end and the wiring box (6), a pair of arc-shaped partition plates (613) is formed at the bent end of the box cavity (61), and wiring box fixing legs (63) for fixing are provided around the wiring box (6) at intervals, a wire base (5) fixed with the left end of the sliding base (2) is arranged in the guide rail (1) connected with the wiring box (6), and the wire base (5) collects the wire introduced into the wiring box (6) and guides the wire upwards to the position of the driving device (3).

7. The electric long slide rail for the automobile seat according to claim 1, characterized in that a set of guide rail fixing seats (14) are arranged at the bottom of the guide rail (1) at intervals along the length direction, a pair of guide rail fixing seat holes (141) are respectively formed in the guide rail fixing seats (14), and a set of positioning columns (15) extending downwards are arranged at the bottom of the guide rail (1) at intervals along the length direction.

8. The electric long slide rail for the car seat according to claim 1, characterized in that both ends of the screw (11) in the length direction are respectively provided with a screw seat (111), and the screw seats (111) are respectively fixed at the inner bottom of the guide rail (1).

9. The electric long slide rail for the automobile seat according to claim 1, characterized in that a zipper base (27) is fastened to each of the left and right ends of the slide base (2), a zipper head (271) is respectively disposed on the zipper base (27), and a dustproof zipper (272) matched with the zipper head (271) is disposed at the upper opening of the guide rail (1).

10. The electric long slide rail for the car seat according to claim 1, characterized in that the height of the upper end of the seat holder (22) is higher than the height of the upper ends of the slide carriage (2) and the driving device (3), and a seat fixing hole (222) is formed on a side surface of the upper end of the seat holder (22) near the top and far away from the corresponding slide carriage frame (21).