CN218750424U

CN218750424U - Automobile seat slide rail device capable of sliding smoothly

Info

Publication number: CN218750424U
Application number: CN202223608164.1U
Authority: CN
Inventors: 邹耀忠; 杨广; 曹凯
Original assignee: Jiangsu Zhongming Xianghe Seiko Co ltd
Current assignee: Jiangsu Zhongming Xianghe Seiko Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-03-28
Anticipated expiration: 2032-12-30

Abstract

A sliding rail device of an automobile seat with smooth sliding comprises a lower sliding rail; the screw rod is arranged in the inner cavity of the lower sliding rail; the gear box is arranged in the inner cavity of the lower sliding rail, penetrates through the screw rod and is provided with a gear box fixing support; the connecting frame plate is vertically arranged above the lower slide rail; the driving motor is arranged at the middle position of the connecting frame plate; the upper sliding rail is arranged at the upper part of the lower sliding rail, is connected with the lower sliding rail, is arranged below the connecting frame plate and is connected with the gear box fixing support; the sliding supports are fixed at the front end and the rear end of the upper slide rail and supported on the bottom panel of the lower slide rail; the clearance eliminating elastic support frame is fixed at the end parts of the front end and the rear end of the upper sliding rail and is provided with a clearance eliminating support frame top panel, an oblique side plate and a vertical side plate, friction plates are arranged on the oblique side plate and the vertical side plate of the clearance eliminating support frame, and the friction plates are attached to and contacted with the inner side wall of the lower sliding rail. The upper sliding rail is smooth and stable when sliding, the smoothness during movement is guaranteed, and the riding comfort is improved; eliminating the clearance and preventing abnormal sound; the running stability is improved.

Description

Automobile seat slide rail device capable of sliding smoothly

Technical Field

The utility model belongs to the technical field of the car seat accessory, concretely relates to smooth and easy car seat slide rail device slides.

Background

With the continuous development of the existing economic society, people put higher and higher requirements on the comfort of vehicle riding, and the most intuitive feeling influencing the comfort of passengers is the comfort of the passengers when the passengers sit on the seats in the process of driving or riding the automobiles. The automobile seat slide rail device has the functions of changing the front and rear positions of the seat and locking, can improve the space size of the front part of the seat, effectively improves the comfort and the operation convenience of the seat, and facilitates passengers to enter the automobile. With the continuous progress of the electric technology, the position adjusting mode of the vehicle seat is also changed from a manual adjusting mode to an electric adjusting mode which is more convenient in technology. The existing electric vehicle seat slide rail generally comprises an upper slide rail, a lower slide rail and a driving mechanism, wherein the upper slide rail is connected with a slide seat or a slide frame fixed with a vehicle seat framework, the upper slide rail is wrapped in the lower slide rail and can slide relative to the lower slide rail, the lower slide rail is fixed on a vehicle body floor, and the upper slide rail is driven by the driving mechanism to move back and forth to drive the slide seat and the seat to move together. However, in the prior art, the upper slide rail mostly moves on the lower slide rail directly in the moving process, and no corresponding part for guiding and supporting the upper slide rail to move is arranged on the upper slide rail, so that the upper slide rail is easy to shake and bump in the moving process, especially in the starting process, and the running stability cannot be guaranteed; in addition, inevitably can have the clearance between last slide rail and the lower slide rail in the operation, if can not eliminate in time and reduce the clearance, will lead to going up the slide rail and shake occasionally sliding to along with abnormal sound and noise, can't ensure the smooth and easy nature of slip operation.

In view of the above, there is a need for a vehicle seat slide rail device with a reasonable design that can effectively solve the above problems. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rational in infrastructure, can reduce vibrations and noise, thereby be favorable to promoting the travelling comfort and the smooth and easy guarantee comfort level of operation through set up the sliding support that has the gyro wheel on last slide rail, help connecting the friction disc the clearance elastic support frame with this will descend the reliable stable elimination in clearance between slide rail and the last slide rail through setting up, thereby have the smooth and easy car seat slide rail device of slip that is convenient for set independent driving motor on single slide rail set spare and effectively promotes drive efficiency.

The utility model aims to achieve the purpose that the automobile seat slide rail device which slides smoothly comprises two lower slide rails which are correspondingly arranged and are arranged on the bottom plate of the automobile body, wherein the two lower slide rails have the same structure and are internally provided with a lower slide rail inner cavity, and the lower slide rails are also provided with a lower slide rail bottom plate; the screw rod is fixedly arranged in the inner cavity of the lower slide rail along the length direction of the lower slide rail; the gear box is arranged in the inner cavity of the lower sliding rail and penetrates through the screw rod, the gear box is in transmission connection with the screw rod through a gear transmission assembly in the gear box, and a gear box fixing support is fixedly sleeved on the gear box; the connecting frame plate is vertically arranged above the lower slide rail and is fixedly connected with the automobile seat; the driving motor is fixedly arranged at the middle part of the connecting frame plate and is connected with a transmission shaft, and the transmission shaft extends downwards and extends into the inner cavity of the lower sliding rail to be in transmission connection with a transmission assembly in the gear box; the upper sliding rail is arranged at the upper part of the lower sliding rail and is in sliding connection with the lower sliding rail, and the upper sliding rail is arranged at the lower position of the connecting frame plate in a matching way and is fixedly connected with the gear box fixing support; the sliding supports are respectively fixed at the positions, close to the end parts, of the front end and the rear end of the upper slide rail in the length direction in a state of forming a group by two, are supported on the bottom panel of the lower slide rail and can roll on the bottom panel of the lower slide rail in a reciprocating manner; the anti-backlash elastic support frame is also fixed at the end parts of the front end and the rear end of the upper sliding rail in the length direction respectively in a state of being in a group of two pairs, and is provided with an anti-backlash support frame top panel which is fixed with the upper sliding rail through a fastener, the left side and the right side of the bottom of the anti-backlash elastic support frame are respectively provided with an anti-backlash support frame inclined side plate and an anti-backlash support frame vertical side plate, friction plates are respectively arranged on the anti-backlash support frame inclined side plate and the anti-backlash support frame vertical side plate of the anti-backlash elastic support frame through fasteners, and the friction plates are tightly attached and contacted with the inner side wall of the lower sliding rail.

The utility model discloses a concrete embodiment on the last slide rail body and set up a plurality of last slide rail locking grooves that run through its thickness direction in the position department that corresponds the connection frame plate, and the bottom of connection frame plate and protruding the establishing of position department corresponding to a plurality of last slide rail locking grooves have a plurality of connection frame plate locking pieces, and a plurality of connection frame plate locking pieces all with the cooperation of the last slide rail locking groove that corresponds separately install together to the fixed connection of slide rail and connection frame plate is gone up in the realization.

In another specific embodiment of the present invention, an upper slide rail bending portion is formed at each of the left and right side edge portions in the length direction of the upper slide rail, and the cross section of the upper slide rail bending portion is a U-shaped structure with an upward opening; the lower slide rail is of a square tube structure, the lower slide rail is provided with a lower slide rail open slot extending along the length direction of the lower slide rail open slot, the lower slide rail is also provided with lower slide rail side panels forming two sides of the bottom panel of the lower slide rail, the top edge parts of the two lower slide rail side panels are respectively provided with a lower slide rail bending part, the cross section of the lower slide rail bending part is of an inverted U-shaped structure with a downward opening, and the upper slide rail bending parts on two sides of the upper slide rail are respectively matched with the corresponding lower slide rail bending parts respectively and realize the sliding matching of the upper slide rail and the lower slide rail.

In another specific embodiment of the present invention, the cross section of the sliding bracket is configured in a shape similar to a "convex" shape, the two side plates of the sliding bracket body are respectively provided with a rolling bearing pin extending along the horizontal direction, and a rolling bearing is rotatably mounted on the rolling bearing pin, and the rolling bearing is supported on the bottom plate of the lower slide rail and can roll back and forth thereon.

In another specific embodiment of the present invention, a lower slide rail inclined plate is further formed between the lower slide rail side plate of the lower slide rail and the lower slide rail bending portion, and the lower slide rail inclined plate is arranged corresponding to the anti-backlash support frame inclined side plate; and a plurality of friction plates arranged on the oblique side plate of the anti-backlash support frame and the vertical side plate of the anti-backlash support frame are tightly contacted with the side plate of the lower slide rail and the inner side wall of the oblique plate of the lower slide rail.

In still another specific embodiment of the present invention, a dust-proof strip assembly is further disposed on the upper portion of the lower slide rail, and the dust-proof strip assembly includes a pair of main dust-proof strips, a pair of dust-proof strip reinforcing frames and a plurality of dust-proof strip brackets; the two dustproof strip reinforcing frames are of L-shaped plate structure structures and are respectively arranged on the lower sliding rail bending portions corresponding to the dustproof strip reinforcing frames in a matched mode, a dustproof strip reinforcing frame supporting seat is further arranged at the position below the end portions of the two ends of the two dustproof strip reinforcing frames in the length direction, the dustproof strip reinforcing frame supporting seat is installed on the lower sliding rail bottom surface plate of the lower sliding rail in a positioned mode, the two main dustproof strips are respectively arranged on the two dustproof strip reinforcing frames, each main dustproof strip comprises a main dustproof strip transverse plate horizontally arranged and a main dustproof strip vertical plate formed at the bottom of the main dustproof strip transverse plate, the main dustproof strip transverse plates of the two main dustproof strips are arranged on the upper portion of a lower sliding rail open slot and shield the lower sliding rail open slot together, the dustproof strip supports are arranged on the lower sliding rail side plates on the left side and the right side of the lower sliding rail body at intervals and are arranged along the vertical direction, and the top end portions of the dustproof strip supports are connected with the corresponding main dustproof strips respectively, so that the main dustproof strips and the lower sliding rail body are installed in a positioned mode.

In yet another specific embodiment of the present invention, a front lead screw support and a rear lead screw support are respectively disposed at front and rear positions of the lead screw in the length direction, front and rear ends of the lead screw in the length direction respectively penetrate through the front lead screw support and the rear lead screw support, and the front lead screw support and the rear lead screw support are both fixedly mounted on the bottom plate of the lower slide rail through a fastener; and the rod body of the screw rod is also provided with a screw rod guide sleeve.

In a more specific embodiment of the present invention, the gear box fixing bracket of the gear box has a gear box fixing bracket bottom panel and a pair of gear box fixing bracket side panels which form the front and rear sides of the gear box fixing bracket bottom panel, the gear box is installed in the bearing cavity formed by the common enclosing structure of the gear box fixing bracket bottom panel and the gear box fixing bracket side panels, and two gear box fixing bracket connecting protrusions are formed at the top of the pair of gear box fixing bracket side panels, and the upper sliding rail is provided with upper sliding rail positioning grooves corresponding to the positions of the gear box fixing bracket connecting protrusions, and the gear box fixing bracket connecting protrusions are all installed in the corresponding upper sliding rail positioning grooves, so as to realize the positioning connection between the gear box fixing bracket and the upper sliding rail body.

The utility model discloses a still and then a concrete embodiment still wear to be equipped with the lower slide rail locking bolt that a plurality of can realize the rigid coupling with vehicle body floor on the lower slide rail bottom panel of lower slide rail a locking bolt groove of stepping down has still been seted up to the bottom position department of gear box fixed bolster, installs in the removal process of gear box fixed bolster the nut of lower slide rail locking bolt on the lower slide rail bottom panel can pass this locking bolt groove of stepping down.

In yet another specific embodiment of the present invention, a transmission shaft cover plate is fixedly installed on a side surface of the connecting frame plate and at a position corresponding to a lower portion of the driving motor, a transmission shaft positioning protection sleeve is further convexly installed at a middle portion of the transmission shaft cover plate, and a transmission shaft of the driving motor is sleeved in the transmission shaft positioning protection sleeve; the top of the end parts of the two ends in the length direction of the connecting frame plate is provided with a connecting frame plate connecting nut, and the connecting frame plate is fixedly connected with the automobile seat through the two connecting frame plate connecting nuts.

The utility model discloses owing to adopted above-mentioned structure, compare with prior art, the beneficial effect who has: firstly, sliding supports capable of sliding on a bottom panel of a lower sliding rail are arranged on the front side and the rear side of an upper sliding rail, and four rolling bearings are arranged on one upper sliding rail to form four groups of sliding pairs, so that the upper sliding rail is smooth and stable when sliding, the smoothness of the automobile seat during front and rear movement is guaranteed, and the riding comfort is effectively improved; secondly, the anti-backlash elastic support frames are arranged on the front side and the rear side of the upper sliding rail, friction plates are arranged between the anti-backlash elastic support frames and the inner side wall of the lower sliding rail, the friction plates are always closely attached to the inner side wall of the lower sliding rail in the movement process of the upper sliding rail, and the gap between the lower sliding rail and the upper sliding rail can be effectively eliminated under the elastic action of the anti-backlash elastic support frames, so that the sliding smoothness of the upper sliding rail is further ensured, abnormal noise generated in the operation process is prevented, the riding comfort is further improved, the service life is prolonged, and the use experience is greatly optimized; finally, the independent driving motor is arranged on the single lower sliding rail, the upper sliding rail can move back and forth together with the gear box under the driving of the driving motor, the internal structure is simple and compact, the output of larger power and torque can be realized, the device is suitable for various different severe working conditions, the running stability and safety of the sliding rail are improved more and more, the running noise is reduced, and the comfort is improved.

Drawings

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

Fig. 2 is an exploded perspective view of the embodiment shown in fig. 1.

Fig. 3 is a schematic perspective view of the upper slide rail in the embodiment shown in fig. 1.

Fig. 4 is a plan view of the internal structure of an embodiment of the present invention.

In the figure: 1. the dustproof structure comprises a lower slide rail, 11 lower slide rail inner cavities, 12 lower slide rail bottom panels, 121 lower slide rail locking bolts, 13 lower slide rail open slots, 14 lower slide rail side panels, 15 lower slide rail bending parts, 16 lower slide rail inclined panels, 17 dustproof strip assemblies, 171 main body dustproof strips, 1711 main body dustproof strip transverse panels, 1712 main body dustproof strip vertical panels, 172 dustproof strip reinforcing frames, 1721 dustproof strip reinforcing frame supporting seats and 173 dustproof strip supports; 2. the screw rod, 21, a front screw rod support, 22, a rear screw rod support, 23 and a screw rod guide sleeve; 3. the gearbox comprises a gearbox, 31, a gearbox fixing support, 311, a bottom panel of the gearbox fixing support, 312, a side panel of the gearbox fixing support, 313, a connecting protrusion of the gearbox fixing support, 314 and a locking bolt abdicating groove; 4. the transmission shaft positioning device comprises a connecting frame plate, 41 connecting frame plate locking blocks, 42 transmission shaft cover plates, 421 transmission shaft positioning protective sleeves and 43 connecting frame plate connecting nuts; 5. a drive motor 51. A transmission shaft; 6. an upper slide rail, 61. An upper slide rail locking groove, 62. An upper slide rail bending part, 63. An upper slide rail positioning groove; 7. a sliding bracket, 71, a rolling bearing, 72, a rolling bearing pin; 8. the anti-backlash device comprises an anti-backlash elastic support frame, 81, an anti-backlash support frame top panel, 82, anti-backlash support frame inclined side plates, 83 and anti-backlash support frame vertical side plates; 9. a friction plate.

Detailed Description

In order to clearly understand the technical essence and advantages of the present invention, the following embodiments are described in detail, but the description of the embodiments is not intended to limit the technical solution of the present invention, and any equivalent changes made according to the present invention, which are only formal and not essential, should be considered as the technical solution 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 shown in the corresponding fig. 1, and thus, should not be interpreted as a specific limitation to the technical solution provided by the present invention.

Referring to fig. 1 to 4, a sliding mechanism of a seat slide rail of an automobile is shown, which includes two lower slide rails 1 correspondingly disposed and installed on a vehicle body bottom plate, the two lower slide rails 1 have the same structure and are internally formed with a lower slide rail inner cavity 11, and the lower slide rail 1 further includes a lower slide rail bottom panel 12; the screw rod 2 is fixedly arranged in the inner cavity 11 of the lower slide rail along the length direction of the lower slide rail 1; a gear box 3, which is arranged in the inner cavity of the lower slide rail 11 and is arranged on the screw rod 2 in a penetrating way, the gear box 3 realizes the transmission connection with the screw rod 2 through a gear transmission component in the gear box 3, and a gear box fixing bracket 31 is fixedly sleeved on the gear box 3; the connecting frame plate 4 is vertically arranged above the lower slide rail 1, and the connecting frame plate 4 is fixedly connected with the automobile seat; the driving motor 5 is fixedly arranged at the middle position of the connecting frame plate 4 and is connected with a transmission shaft 51, and the transmission shaft 51 extends downwards and extends into the inner cavity 11 of the lower slide rail to realize transmission connection with a transmission assembly inside the gear box 3; the upper sliding rail 6 is arranged at the upper part of the lower sliding rail 1 and is in sliding connection with the lower sliding rail 1, and the upper sliding rail 6 is arranged at the lower part of the connecting frame plate 4 in a matching way and is in fixed connection with the gear box fixing bracket 31; sliding brackets 7, which are fixed in a group of two in pairs at the positions close to the ends of the front and rear ends of the upper slide rail 6 in the length direction, respectively, the sliding brackets 7 are supported on the bottom plate 12 of the lower slide rail and can roll on the top surface in a reciprocating manner; the anti-backlash elastic support frame 8 is also fixed at the front end and the rear end of the upper slide rail 6 in the length direction respectively in a state of forming a group of two anti-backlash elastic support frames 8, each anti-backlash elastic support frame 8 is provided with an anti-backlash support frame top panel 81, the anti-backlash support frame top panel 81 is fixed with the upper slide rail 6 through a fastener so as to realize the connection of the anti-backlash elastic support frame 8 and the upper slide rail 6, the anti-backlash support frame inclined side plate 82 and the anti-backlash support frame vertical side plate 83 are respectively formed at the left side and the right side of the bottom of the anti-backlash elastic support frame 8, the anti-backlash support frame inclined side plate 82 and the anti-backlash support frame vertical side plate 83 of the anti-backlash elastic support frame 8 are respectively provided with a friction plate 9 through fasteners, and the friction plates 9 are tightly contacted with the inner side wall of the lower slide rail 1.

Please refer to fig. 2 and 3 in combination with fig. 4, a plurality of upper rail locking grooves 61 penetrating through the thickness direction of the upper rail 6 are formed on the upper rail 6 at positions corresponding to the connecting frame plate 4, a plurality of connecting frame plate locking blocks 41 are convexly formed at positions corresponding to the upper rail locking grooves 61 at the bottom of the connecting frame plate 4, and the connecting frame plate locking blocks 41 are all matched and mounted with the corresponding upper rail locking grooves 61, so as to realize the fixed connection between the upper rail 6 and the connecting frame plate 4.

In this embodiment, an upper rail bending portion 62 is formed at each of the left and right side edge portions in the length direction of the upper rail 6, and the cross section of the upper rail bending portion 62 has a U-shaped structure with an upward opening; the lower slide rail 1 is of a square tube structure, the lower slide rail 1 is provided with a lower slide rail open slot 13 extending along the length direction, the lower slide rail 1 is further provided with lower slide rail side panels 14 formed on two sides of a lower slide rail bottom panel 12, and top edge parts of the two lower slide rail side panels 14 are further respectively provided with a lower slide rail bending part 15, the cross section of the lower slide rail bending part 15 is of an inverted U-shaped structure with a downward opening, and the upper slide rail bending parts 62 on two sides of the upper slide rail 6 are respectively matched with the corresponding lower slide rail bending parts 15 to realize the sliding matching of the upper slide rail 6 and the lower slide rail 1.

Further, the cross section of the slide holder 7 is formed in a convex-like shape, a rolling bearing pin 72 extending in the horizontal direction is provided on each of both side plates of the slide holder 7 body, a rolling bearing 71 is rotatably mounted on the rolling bearing pin 72, and the rolling bearing 71 is supported on the lower rail bottom plate 12 so as to be capable of reciprocating rolling thereon.

Further, a lower slide rail inclined plate 16 is formed between the lower slide rail side panel 14 of the lower slide rail 1 and the lower slide rail bending part 15, and the lower slide rail inclined plate 16 is arranged corresponding to the gap eliminating support frame inclined side plate 82; and a plurality of friction plates 9 arranged on the oblique side plate 82 of the anti-backlash support frame and the vertical side plate 83 of the anti-backlash support frame are all closely contacted with the inner side walls of the lower slide rail side plate 14 and the lower slide rail oblique plate 16.

Referring to fig. 2 and 4, a dust-proof bar assembly 17 is further disposed on the upper portion of the lower slide rail 1, and the dust-proof bar assembly 17 includes a pair of main body dust-proof bars 171, a pair of dust-proof bar reinforcing frames 172, and a plurality of dust-proof bar brackets 173; the two dustproof strip reinforcing frames 172 are of an L-shaped plate structure and are respectively arranged on the corresponding lower slide rail bending parts 15 in a matched manner, a dustproof strip reinforcing frame supporting seat 1721 is further arranged at the lower position of the end parts of the two ends of the two dustproof strip reinforcing frames 172 in the length direction, the dustproof strip reinforcing frame supporting seat 1721 is positioned and installed on the lower slide rail bottom surface plate 12 of the lower slide rail 1, the two main dustproof strips 171 are respectively arranged on the two dustproof strip reinforcing frames 172, the two main dustproof strips 171 respectively comprise a main dustproof strip transverse plate 1711 which is horizontally arranged and a main dustproof strip vertical plate 1712 which is formed at the bottom of the main dustproof strip transverse plate 1711, the main dustproof strip transverse plates 1711 of the two main dustproof strips 171 are arranged at the upper part of the lower slide rail open slot 13 and jointly shield the lower slide rail open slot 13, a plurality of the dustproof strip supports 173 are arranged on the lower slide rail 14 at the left side and the right side of the body of the lower slide rail 1 at intervals and are arranged along the vertical direction, and the top end parts of the dustproof strip supports 173 are connected with the corresponding main bodies 173, so as to realize the connection of the lower slide rail bending parts 171; it should be noted that, the dust-proof strip assembly 17 has a compact structure and can realize reliable positioning connection with the lower slide rail 1, when the lower slide rail 1 is laid in the vehicle body floor, dust and other foreign matters are effectively prevented from entering into the lower slide rail 1, and the main body dust-proof strip 171 can make the vehicle body floor have a large plane structure, thereby increasing the practicability and the aesthetic property.

In this embodiment, a front screw support 21 and a rear screw support 22 are respectively disposed at front and rear two side positions in the length direction of the screw 2, front and rear end portions in the length direction of the screw 2 are respectively inserted into the front screw support 21 and the rear screw support 22, and the front screw support 21 and the rear screw support 22 are both fixedly mounted on the lower slide rail bottom panel 12 through a fastener; a screw rod guide sleeve 23 is also arranged on the rod body of the screw rod 2.

Furthermore, the gear box fixing bracket 31 of the gear box 3 includes a gear box fixing bracket bottom panel 311 and a pair of gear box fixing bracket side panels 312 formed on the front and rear sides of the gear box fixing bracket bottom panel 311, the gear box 3 is installed in a supporting cavity formed by the gear box fixing bracket bottom panel 311 and the gear box fixing bracket side panel 312, two gear box fixing bracket connecting protrusions 313 are formed on the top of the gear box fixing bracket side panel 312, the upper slide rail 6 is provided with upper slide rail positioning grooves 63 at positions corresponding to the gear box fixing bracket connecting protrusions 313, and the plurality of gear box fixing bracket connecting protrusions 313 are installed in the corresponding upper slide rail positioning grooves 63 in a matching manner, so that the gear box fixing bracket 31 and the upper slide rail 6 body are positioned and connected.

It should be noted that, because the upper slide rail 6 is directly connected with the gear box 3 through the gear box fixing support 31, the top of the gear box fixing support 31 has a fixed connection point with the upper slide rail 6, and the gear box fixing support 31 has a cubic structure, the gear box fixing support 31 is uniformly stressed and does not shake or deform under the action of external force or under the condition of collision, so that the condition that the screw rod 2 penetrating through the gear box fixing support 31 does not distort is ensured, and the operation safety is improved.

Preferably, a plurality of lower slide rail locking bolts 121 capable of being fixedly connected with a vehicle body bottom plate are further arranged on the lower slide rail bottom panel 12 of the lower slide rail 1 in a penetrating manner, a locking bolt abdicating groove 314 is further arranged at the bottom part of the gear box fixing bracket 31, and a nut of the lower slide rail locking bolt 121 mounted on the lower slide rail bottom panel 12 can pass through the locking bolt abdicating groove 314 in the moving process of the gear box fixing bracket 31.

The gear box 3 is transversely arranged, the transmission shaft 51 is vertically arranged, the upper end part of the transmission shaft 51 is in transmission connection with the output end of the driving motor 5, the lower end of the transmission shaft 51 is inserted into an upper round hole of the gear box 3, meanwhile, the screw rod 2 is connected with a gear transmission assembly in the gear box 3, the driving motor 5 drives the gear box fixing support 31 and the upper sliding rail 6 to move back and forth on the screw rod 2 through the driving transmission shaft 51 and the gear box 3 in transmission connection with the driving transmission shaft, and the transmission mode is simple and reliable; and because the gear box 3 is transversely arranged and forms the locking bolt abdicating groove 314, a vacant space exists in the lower slide rail inner cavity 11 in the lower slide rail 1, when the lower slide rail 1 is installed, the locking bolt 121 connected with the vehicle body bottom plate can be directly arranged between the lower slide rail bottom plates 12, so that the installation of the lower slide rail 1 and the vehicle body bottom plate is facilitated, and the production cost can be saved while the assembly is facilitated.

Further, a transmission shaft cover plate 42 is fixedly installed on one side surface of the connecting frame plate 4 and at a position corresponding to the lower portion of the driving motor 5, a transmission shaft positioning protection sleeve 421 is convexly installed at the middle portion of the transmission shaft cover plate 42, and the transmission shaft 51 of the driving motor 5 is sleeved in the transmission shaft positioning protection sleeve 421; a connecting frame plate connecting nut 43 is installed on the top of the end part of the two ends of the connecting frame plate 4 in the length direction, and the connecting frame plate 4 is fixedly connected with the automobile seat through the two connecting frame plate connecting nuts 43.

Referring to fig. 1 to 4, the applicant briefly describes the working principle of the technical solution provided by the present invention: firstly, during assembly, two corresponding lower slide rails 1 are fixedly mounted on a vehicle body bottom plate through locking bolts 121, then a gear box 3 and an upper slide rail 6 with a sliding support 7 and an anti-backlash elastic support frame 8 are arranged in the lower slide rails 1, then a screw rod 2 and a driving motor 5 are arranged, transmission connection of a transmission shaft 51 and the gear box 3 is realized, then a dustproof strip assembly 17 is mounted, and finally an automobile seat is placed on a connecting frame plate 4 and is fixedly mounted through a connecting frame plate connecting nut 42; when a driver and an occupant carry out front-and-back movement operation on the seat according to actual riding experience requirements, the external controller is operated to control the driving motor 5 to work, the transmission shafts 51 of the driving motors 5 on the lower sliding rails 1 on the two sides drive the transmission gear components inside the gear box 3 to work, so that the gear box 3 is driven to move on the screw rod 2 in a front-and-back manner, the gear box fixing support 31 of the gear box 3 drives the upper sliding rail 6 to move in a front-and-back manner, finally, the vehicle seat connected with the upper sliding rail 6 is driven to move in a front-and-back manner, the rolling bearings 71 on the front portion and the rear portion of the upper sliding rail 6 roll stably on the lower sliding rail bottom panel 12, reliable and stable operation of the upper sliding rail 6 is ensured, and comfortable adjustment of the front-and-back positions of the seat is realized.

To sum up, the technical solution provided by the present invention overcomes the shortcomings 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 smooth and easy car seat slide rail device which characterized in that: the sliding rail structure comprises two lower sliding rails (1) which are correspondingly arranged and installed on a vehicle body bottom plate, wherein the two lower sliding rails (1) have the same structure, a lower sliding rail inner cavity (11) is formed in the two lower sliding rails (1), and the lower sliding rail (1) is also provided with a lower sliding rail bottom plate (12); the screw rod (2) is fixedly arranged in the inner cavity (11) of the lower slide rail along the length direction of the lower slide rail (1); the gear box (3) is arranged in the lower sliding rail inner cavity (11) and penetrates through the screw rod (2), the gear box (3) is in transmission connection with the screw rod (2) through a gear transmission assembly in the gear box, and a gear box fixing support (31) is fixedly sleeved on the gear box (3); the connecting frame plate (4) is vertically arranged above the lower slide rail (1), and the connecting frame plate (4) is fixedly connected with the automobile seat; the driving motor (5) is fixedly arranged at the middle position of the connecting frame plate (4) and is connected with a transmission shaft (51), and the transmission shaft (51) extends downwards and extends into the inner cavity (11) of the lower slide rail to realize transmission connection with a transmission assembly inside the gear box (3); the upper sliding rail (6) is arranged at the upper part of the lower sliding rail (1) and is in sliding connection with the lower sliding rail (1), and the upper sliding rail (6) is installed at the lower position of the connecting frame plate (4) in a matched mode and is fixedly connected with the gear box fixing support (31); the sliding supports (7) are respectively fixed at the positions close to the end parts at the front end and the rear end of the upper slide rail (6) in the length direction in a state of forming a group by two, and the sliding supports (7) are supported on a bottom panel (12) of the lower slide rail and can roll on the bottom panel in a reciprocating manner; the anti-backlash elastic support frame (8) is also fixed at the front end and the rear end of the upper sliding rail (6) in the length direction in a group of two-by-two mode respectively, the anti-backlash elastic support frame (8) is provided with an anti-backlash support frame top panel (81), the anti-backlash support frame top panel (81) is fixed with the upper sliding rail (6) through a fastener, the anti-backlash support frame oblique side plate (82) and the anti-backlash support frame vertical side plate (83) are further formed at the left side and the right side of the bottom of the anti-backlash elastic support frame (8) respectively, friction plates (9) are mounted on the anti-backlash support frame oblique side plate (82) and the anti-backlash support frame vertical side plate (83) of the anti-backlash elastic support frame (8) through fasteners, and the friction plates (9) are tightly attached to and contacted with the inner side wall of the lower sliding rail (1).

2. The slide rail device for a vehicle seat sliding smoothly according to claim 1, wherein: go up slide rail (6) body and seted up a plurality of upper slide rail closure grooves (61) that run through its thickness direction in the position department that corresponds connection frame plate (4), and the bottom of connection frame plate (4) and protruding the constitution of establishing in the position department that corresponds a plurality of upper slide rail closure grooves (61) have a plurality of connection frame plate closure pieces (41), and a plurality of connection frame plate closure pieces (41) all with respectively corresponding upper slide rail closure groove (61) cooperation are installed together to realize going up slide rail (6) and the fixed connection of connection frame plate (4).

3. The slide rail device for a vehicle seat sliding smoothly according to claim 1, wherein: the left and right side edge parts in the length direction of the upper slide rail (6) are respectively formed into an upper slide rail bending part (62), and the cross section of the upper slide rail bending part (62) is in a U-shaped structure with an upward opening; the lower slide rail (1) is of a square pipe structure, the lower slide rail (1) is provided with a lower slide rail open slot (13) extending along the length direction of the lower slide rail open slot, the lower slide rail (1) is also provided with lower slide rail side panels (14) forming two sides of a lower slide rail bottom panel (12), top edge parts of the two lower slide rail side panels (14) are respectively provided with a lower slide rail bending part (15), the cross section of the lower slide rail bending part (15) is of an inverted U-shaped structure with a downward opening, and upper slide rail bending parts (62) at two sides of the upper slide rail (6) are respectively matched with the corresponding lower slide rail bending parts (15) together to realize the sliding matching of the upper slide rail (6) and the lower slide rail (1).

4. The slide rail device for a vehicle seat sliding smoothly according to claim 1, wherein: the cross section of the sliding support (7) is in a structure with a shape similar to a Chinese character 'tu', rolling bearing pins (72) extending along the horizontal direction are arranged on two side plates of the sliding support (7) body, a rolling bearing (71) is rotatably arranged on each rolling bearing pin (72), and each rolling bearing (71) is supported on the bottom plate (12) of the lower slide rail and can roll on the bottom plate in a reciprocating mode.

5. The slide rail device for a vehicle seat sliding smoothly according to claim 3, wherein: a lower slide rail inclined plate (16) is further formed between the lower slide rail side panel (14) of the lower slide rail (1) and the lower slide rail bending part (15), and the lower slide rail inclined plate (16) is arranged corresponding to the anti-backlash support frame inclined side panel (82); and a plurality of friction plates (9) arranged on the oblique side plate (82) of the anti-backlash support frame and the vertical side plate (83) of the anti-backlash support frame are tightly contacted with the side plate (14) of the lower slide rail and the inner side wall of the oblique plate (16) of the lower slide rail.

6. The slide rail device for a vehicle seat sliding smoothly according to claim 3, wherein: the upper part of the lower sliding rail (1) is also provided with a dustproof strip assembly (17), and the dustproof strip assembly (17) comprises a pair of main dustproof strips (171), a pair of dustproof strip reinforcing frames (172) and a plurality of dustproof strip brackets (173); two dust strip reinforcing frames (172) are of an L-shaped plate structure and are respectively arranged on corresponding lower sliding rail bending parts (15) in a matched mode, dust strip reinforcing frame supporting seats (1721) are further arranged at positions below the end parts of the two ends of the two dust strip reinforcing frames (172) in the length direction, the dust strip reinforcing frame supporting seats (1721) are arranged on lower sliding rail bottom panels (12) of the lower sliding rails (1) in a positioned mode, the two main body dust strips (171) are respectively arranged on the two dust strip reinforcing frames (172), the two main body dust strips (171) comprise main body dust strip transverse plates (1711) horizontally arranged and main body dust strip vertical plates (1712) forming the bottoms of the main body dust strip transverse plates (1711), the main body dust strip transverse plates (1711) of the two main body dust strips (171) are arranged on the upper portions of the lower sliding rails (13) and jointly cover the lower sliding rails (13), the dust strip supporting seats (173) are arranged on the left side panel and right side panels (173) of the lower sliding rail (1) at intervals, and the main body dust strip supporting seats (173) are arranged on the left side panel (173) of the lower sliding rail (173) and right side panels (173), and the main body dust strip supporting seats (171) are arranged, and the main body dust strip supporting seats are arranged along the vertical side panels (173) and the vertical side panels (173) of the lower sliding rail (173) so that the main body dust strip supporting seats are arranged.

7. The slide rail device for a vehicle seat sliding smoothly according to claim 1, wherein: a front screw rod support (21) and a rear screw rod support (22) are respectively arranged at the front side and the rear side of the screw rod (2) in the length direction, the front end and the rear end of the screw rod (2) in the length direction respectively penetrate through the front screw rod support (21) and the rear screw rod support (22), and the front screw rod support (21) and the rear screw rod support (22) are fixedly arranged on the bottom plate (12) of the lower slide rail through a fastener; and a screw rod guide sleeve (23) is also arranged on the rod body of the screw rod (2).

8. The slide rail device for a vehicle seat sliding smoothly according to claim 1, wherein: the gearbox fixing support (31) of the gearbox (3) is provided with a gearbox fixing support bottom panel (311) and a pair of gearbox fixing support side panels (312) formed on the front side and the rear side of the gearbox fixing support bottom panel (311), the gearbox (3) is installed in a bearing cavity formed by the gearbox fixing support bottom panel (311) and the gearbox fixing support side panels (312) in a shared surrounding mode, two gearbox fixing support connecting protrusions (313) are formed at the top parts of the pair of gearbox fixing support side panels (312), an upper sliding rail positioning groove (63) is formed in the position, corresponding to the gearbox fixing support connecting protrusions (313), on the upper sliding rail (6), a plurality of gearbox fixing support connecting protrusions (313) are installed in the corresponding upper sliding rail positioning grooves (63) in a matched mode, and therefore the positioning connection between the gearbox fixing support (31) and the upper sliding rail (6) body is achieved.

9. The slide rail device for a vehicle seat sliding smoothly according to claim 8, wherein: still wear to be equipped with lower slide rail locking bolt (121) that a plurality of can realize the rigid coupling with the vehicle body bottom plate on lower slide rail bottom panel (12) of lower slide rail (1) the bottom position department of gear box fixed bolster (31) has still seted up a locking bolt groove of stepping down (314), installs at the removal in-process of gear box fixed bolster (31) the nut of lower slide rail locking bolt (121) on lower slide rail bottom panel (12) can pass this locking bolt groove of stepping down (314).

10. The slide rail device for a vehicle seat sliding smoothly according to claim 1, wherein: a transmission shaft cover plate (42) is fixedly arranged on the surface of one side of the connecting frame plate (4) and at a position corresponding to the lower part of the driving motor (5), a transmission shaft positioning protective sleeve (421) is convexly arranged in the middle of the transmission shaft cover plate (42), and a transmission shaft (51) of the driving motor (5) is sleeved in the transmission shaft positioning protective sleeve (421); the top of the end parts of the two ends of the connecting frame plate (4) in the length direction is provided with a connecting frame plate connecting nut (43), and the connecting frame plate (4) is fixedly connected with the automobile seat through the two connecting frame plate connecting nuts (43).