Seat surface rear end adjusting device of multifunctional automobile seat

Abstract

A seat face rear end adjusting device of a multifunctional automobile seat comprises a front-back moving sliding rail mechanism, a left-right moving sliding rail mechanism, a seat rotating mechanism and a seat framework, the front-back moving sliding rail mechanism is fixed to a compartment bottom plate of an automobile, and the left-right moving sliding rail mechanism is connected with the front-back moving sliding rail mechanism. The seat rotating mechanism is fixed with the left-right moving slide rail mechanism, the seat framework comprises a first side plate and a second side plate, and the seat surface rear end adjusting device comprises a seat surface rear end lifting control mechanism which is hinged between the opposite sides of the first side plate and the second side plate and is used for enabling one ends, facing the side plate rear supporting beam, of the first side plate and the second side plate to be raised upwards or reset downwards; and the seat surface rear end lifting control mechanism is fixed with the seat rotating mechanism at a position corresponding to the upper part of the seat rotating mechanism. The device has the advantages that the structure is simple, manufacturing and mounting are convenient, and multifunctional adjustment of the automobile seat is embodied; the lying comfort is reflected; and excellent strength is guaranteed, and the situation that the cable is prone to damage in the using process is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat technology, specifically relating to a multifunctional automotive seat seat rear adjustment device. Background Technology

[0002] The aforementioned multi-functional car seats at least have functions such as front-to-back, left-to-right adjustment, and rotation. Typical examples of front-to-back and left-to-right adjustment include CN119858491A (car seat slide rail with front-to-back and left-to-right adjustment), and typical examples of rotation include CN220429934U (a car rotating seat), CN222223952U (car seat rotation and locking mechanism), and CN119659431A (car seat disc rotation device), etc. The aforementioned seat back end adjustment device can also be called a car seat cushion back end lifting device.

[0003] The rear adjustment mechanism of the front seat is clearly an extension of the structural system of the car seat, which can significantly improve the user's resting experience, mainly due to its optimization of ergonomic support, pressure distribution, blood circulation, and posture adaptation. Specifically, it optimizes lumbar support, relieves lower back fatigue, improves pressure distribution in the thighs and buttocks, promotes a relaxed posture, and enhances comfort; adapting to diverse human body scenarios.

[0004] When the chair back is adjusted to a flat position relative to the seat, a height difference exists between the rear end of the seat surface and the bottom of the backrest. This height difference creates a gap, which fails to provide adequate support for the human body. Therefore, to ensure comfort in the lumbar and hip area when lying down, a seat back adjustment device with a reasonable design, excellent strength, and the ability to compensate for the height difference between the rear end of the seat surface and the bottom of the backrest when the chair back is reclined is of great importance. Summary of the Invention

[0005] The purpose of this invention is to provide a multifunctional car seat rear adjustment device that helps to simplify the structure for easy manufacturing and installation, ensures excellent strength to prevent collapse during use, and reliably compensates for the height difference between the bottom of the backrest and the rear end of the seat when the backrest is reclined, thereby providing excellent comfort to the reclining occupant.

[0006] The present invention achieves its objective by providing a rear-end adjustment device for a multifunctional car seat. The multifunctional car seat includes a front-to-back sliding rail mechanism, a left-to-right sliding rail mechanism, a seat rotation mechanism, and a seat frame. The front-to-back sliding rail mechanism is fixed to the car's floor in use. The left-to-right sliding rail mechanism is connected to the front-to-back sliding rail mechanism at a position above it. The seat rotation mechanism is fixed to the left-to-right sliding rail mechanism at a position above it. The seat frame includes a first side plate and a second side plate, which are both spaced apart and parallel to each other. The front ends of the first and second side plates are supported and connected by a front support beam, and their rear ends are supported and connected by a rear support beam. The rear-end adjustment device includes a rear-end lifting control mechanism hinged between the front and rear ends of the first and second side plates for raising or lowering the end of the first and second side plates facing the rear support beam. This rear-end lifting control mechanism is fixed to the seat rotation mechanism at a position above it.

[0007] In a specific embodiment of this utility model, the rear end lifting control mechanism of the seat includes a first lifting device for the rear support beam, a second lifting device for the rear support beam, and a lifting device connecting beam. The first lifting device for the rear support beam is hinged to the side of the first side plate facing the second side plate, and the second lifting device for the rear support beam is hinged to the side of the second side plate facing the first side plate and corresponds to the first lifting device for the rear support beam. The first and second lifting devices for the rear support beam are fixed to the seat rotation mechanism at a position above the seat rotation mechanism. The lifting device connecting beam connects the opposing sides of the first and second lifting devices for the rear support beam extending to one end of the front support beam of the side plate.

[0008] In another specific embodiment of this utility model, the structure of the second lifting device of the rear support beam hinged to the side of the second side plate facing the first side plate is the same as the structure of the first lifting device of the rear support beam hinged to the side of the first side plate facing the second side plate. The first lifting device of the rear support beam includes a lifting drive motor, a lifting drive reduction gearbox, a hinged arm plate, a lifting toothed plate, a transition hinged plate, a stop, and a limiting sleeve. The lifting drive motor is fixed to the lifting drive reduction gearbox in a cantilever state and is drively connected to the lifting drive reduction gearbox. The lifting drive reduction gearbox, along with the lifting drive motor, is connected to the hinged arm plate facing the second side plate via a lifting drive reduction gearbox fixing seat. The rear end of one side of the second lifting device of the rear support beam is fixed. The final stage power output shaft of the lifting drive reduction gearbox faces rearward and forms a lifting gear plate. The front end of the hinge arm plate is hinged to the front end of the first side plate facing the second side plate, and the rear end of the hinge arm plate is fixed to the lifting drive reduction gearbox fixing seat. A lifting gear plate clearance hole is opened at the rear end of the hinge arm plate. The hole wall of the lifting gear plate clearance hole cooperates with the hinge arm plate support step seat on the left side of the lifting drive reduction gearbox fixing seat. The final stage power output shaft of the lifting drive reduction gearbox, together with the lifting gear plate, extends... Extending to the left side of the relief hole of the lifting gear plate, the lifting gear plate corresponds to the rear end of the hinge arm plate facing the first side plate. One end of the lifting gear plate is hinged to the hinge arm plate, and a plate edge arc tooth segment is formed on the lower surface of one end of the lifting gear plate. The lifting gear plate engages with the plate edge arc tooth segment after passing through the relief hole of the lifting gear plate. A limiting sleeve insertion cavity penetrating the thickness direction of the lifting gear plate is also provided at one end of the lifting gear plate. The other end of the lifting gear plate is narrowed to form a lifting gear plate hinge arm. The lifting gear plate hinge arm is hinged to one end of the transition hinge plate, and a transition hinge plate rear support beam is formed at the other end of the transition hinge plate. The hinge hole of the transition hinge plate rear support beam is hinged to one end of the side plate rear support beam facing the first side plate. One end of the stop corresponds to the rear side of one end of the lifting tooth plate and is fixed to the lifting drive reduction gearbox fixing seat. The other end of the stop is located at the other end of the lifting tooth plate hinge arm and abuts against the rear right end of the hinge arm plate and is simultaneously fixed to the hinge arm plate and the lifting drive reduction gearbox fixing seat. The end of the final stage power output shaft of the lifting drive reduction gearbox is rotatably supported in the middle of the stop. The limiting sleeve is inserted into the limiting sleeve insertion cavity for sliding cooperation with the limiting sleeve insertion cavity, and the limiting sleeve is also supported on the lifting drive reduction gearbox fixing seat.

[0009] In another specific embodiment of this utility model, the lifting drive motor is a motor with forward and reverse rotation functions; a first screw for the lifting drive gearbox mounting base is provided at the right end of the lifting drive gearbox mounting base, and a second screw for the lifting drive gearbox mounting base is provided at the left end; a compensation screw hole for the lifting drive gearbox mounting base is provided at the lower part of the left end; a first screw through hole for the hinged arm plate is provided at the right end of the hinged arm plate corresponding to the position of the first screw for the lifting drive gearbox mounting base, and a second screw through hole for the hinged arm plate is provided at the position corresponding to the position of the second screw for the lifting drive gearbox mounting base; and a limit sleeve is provided at one end of the stop. A stop bracket connecting screw hole is provided at the insertion cavity position. At the other end of the stop bracket, corresponding to the position of the first screw of the lifting drive gearbox mounting base, a stop bracket fixing screw hole is provided. Above the corresponding stop bracket fixing screw hole, a hinged arm plate stop bracket connecting screw hole is also provided. The first screw of the lifting drive gearbox mounting base passes sequentially through the hinged arm plate first screw through hole and the stop bracket fixing screw hole, and is secured by a lifting drive gearbox mounting base first screw limiting nut screwed to the end of the first screw. The second screw of the lifting drive gearbox mounting base passes sequentially through the hinged arm plate second screw through hole, the central through hole of the limiting sleeve, and the stop bracket connecting screw. The hole is defined by a lifting drive gearbox mounting base second screw limiting nut screwed onto the end of the lifting drive gearbox mounting base second screw. A lifting drive gearbox mounting base reinforcing connecting screw is provided on the right rear side of the hinge arm plate, corresponding to the position of the lifting drive gearbox mounting base compensating screw hole. This lifting drive gearbox mounting base reinforcing connecting screw passes through a screw hole on the right rear side of the hinge arm plate and is screwed into the lifting drive gearbox mounting base compensating screw hole, and is defined by a lifting drive gearbox mounting base reinforcing connecting screw limiting nut screwed onto the end of the lifting drive gearbox mounting base reinforcing connecting screw. On the right end of the hinge arm plate, corresponding to the position of the hinge arm plate stop... A hinged arm plate retainer connecting screw is provided at the position of the frame connecting screw hole. The hinged arm plate retainer connecting screw is screwed into the hinged arm plate retainer connecting screw hole and is limited by the hinged arm plate retainer connecting screw limiting nut screwed to its end. A lifting gear plate pivot half shaft is provided on the right rear side of the hinged arm plate and at the position above and to the left of the lifting drive gearbox fixing seat reinforcing connecting screw. A lifting gear plate pivot support hole is provided at one end of the lifting gear plate and at the position corresponding to the lifting gear plate pivot half shaft. The lifting gear plate hinged arm is hinged to one end of the transition hinge plate through a lifting gear plate hinged arm pin.

[0010] In another specific embodiment of this utility model, a first side plate hinge pin is provided at the front end of the hinge arm plate. The first side plate hinge pin is hinged to the right front end of the first side plate of the seat frame. The bottom front end of the hinge arm plate is folded to the right in a horizontal state to form a lifting device connecting beam fixing edge and a seat rotation mechanism first fixing ear. The bottom rear end of the hinge arm plate is folded forward in a horizontal state to form a seat rotation mechanism second fixing ear. The left end of the lifting device connecting beam is fixed to the lifting device connecting beam fixing edge by a lifting device connecting beam fixing screw. The first fixing ear of the seat rotation mechanism is fixed to the seat rotation mechanism by a seat rotation mechanism first fixing screw. The second fixing ear of the seat rotation mechanism is also fixed to the seat rotation mechanism by a pair of seat rotation mechanism second fixing screws.

[0011] In another specific embodiment of this utility model, a reinforcing tooth plate is fixed on the right side of the rear end of the lifting tooth plate. The reinforcing tooth plate teeth are formed on the downward-facing side of the reinforcing tooth plate. The reinforcing tooth plate teeth are aligned with the teeth on the arc tooth segment of the plate edge. The lifting tooth plate action gear meshes with the reinforcing tooth plate teeth while meshing with the arc tooth segment of the plate edge.

[0012] In a further specific embodiment of this utility model, the seat rotation mechanism includes a left and right sliding rail mechanism fixing base, a fixed plate fixing plate, a gear plate support, a gear plate, a gear plate pressure ring, a gear plate drive device, a drive plate, a support plate, and a seat frame support connecting plate. The left and right sliding rail mechanism fixing base is fixed to the left and right sliding rail mechanism at a position corresponding to the upper part of the left and right sliding rail mechanism. A support plate support seat is formed in the middle of the upward-facing side of the left and right sliding rail mechanism fixing base, which protrudes from the upper surface of the left and right sliding rail mechanism fixing base. A downwardly recessed gear plate support cavity is formed in the central region of the support plate support seat. The gear plate support cavity forms a fixed plate fixing cavity recessed in the surface of the gear plate support cavity. A clearance hole for the gear drive device is provided in the center. A fixed plate is set and fixed in the fixed plate cavity. A drive gear clearance hole is provided on the fixed plate, corresponding to the position of the gear drive device, extending from the upper surface to the lower surface of the fixed plate. The gear plate support is supported in the gear plate support cavity. A gear plate seat cavity is formed on the upward-facing side of the gear plate support. A fixed plate mating cavity is formed in the center of the gear plate seat cavity. The fixed plate extends into the fixed plate mating cavity. The gear plate is supported in the gear plate seat cavity. A set of gear plate bosses is formed on the upward-facing surface of the gear plate and at equal intervals around the circumference of the gear plate. A tooth is formed on the cavity wall of the gear plate cavity and around the circumference of the cavity wall. The drive disc, along with the gear disc pressure ring, is fixed to the gear disc support. A set of roller spacers extending towards the center of the gear disc pressure ring cavity are formed on the cavity wall of the gear disc pressure ring and around its perimeter at equal intervals. A support block is provided on each side of each roller spacer. On the side of each support block facing away from the roller spacer, a roller is provided, supported by the support block on the upward-facing surface of the gear disc. The support blocks, rollers, and roller spacers correspond to the space between two adjacent gear disc bosses in a set of gear disc bosses. A fixed disc is provided within the gear disc pressure ring cavity. An output shaft mating hole is formed on this fixed disc at a position corresponding to the gear disc drive device. The edge of the fixed disc is aligned with the rollers. The fixed plate is secured by spaced-apart fixed plate fixing screws and fixed plate fixing screw holes on the fixed plate. A roller pressure plate is also provided on the upper surface corresponding to the toothed plate pressure ring. The roller pressure plate limits the upper end face of the roller and the support block. The roller pressure plate is fixed to the fixed plate by a set of spaced-apart roller pressure plate fixing screws arranged on the fixed plate. The drive plate is positioned above the roller pressure plate by a drive plate connecting screw located on the toothed plate support, which extends from bottom to top through the toothed plate pressure ring screw hole on the toothed plate pressure ring and the drive plate screw hole on the drive plate, and is locked by a locking nut screwed to the upper end of the drive plate connecting screw. The central area of ​​the drive plate constitutes the drive plate cavity.A support plate is supported and fixed to the support plate bracket by screws. A bearing ring support step ring is formed in the central region of the support plate and around its perimeter. A bearing ring is provided on the upper surface of the bearing ring support step ring. The central region of the bearing ring support step ring is the support plate cavity. The four corners of the seat frame support connecting plate facing downward are rotatably engaged with the four corners of the left and right moving slide rail mechanism fixing base facing upward. A support plate convex ring insertion groove is formed on the seat frame support connecting plate facing downward and corresponding to the support plate convex ring of the support plate. The support plate convex ring inserts into the support plate convex ring insertion groove. A drive plate with the same shape as the drive plate is formed in the central region of the seat frame support connecting plate. The drive disc mating cavity has a drive disc wing corresponding to the lower part of the drive disc wing cavity of the drive disc mating cavity. A drive disc push screw shaft fixing plate is formed between each pair of adjacent drive disc wing cavities. A drive disc push screw shaft is fixed longitudinally on the drive disc push screw shaft fixing plate. When the drive disc rotates, the edge of the drive disc wing supported on the drive disc push screw shaft pushes the drive disc push screw shaft, causing the seat frame support connecting disc to rotate. The gear drive device is fixed to the downward-facing side of the gear disc tray cavity and corresponds to the gear drive device clearance hole. After passing upward through the drive gear clearance hole, the gear drive device enters the gear disc cavity and forms a meshing pair with the gear ring. The top of the gear drive device also extends into the output shaft mating hole.

[0013] In a further specific embodiment of this utility model, the fixed chassis of the left and right moving slide rail mechanism is rectangular in shape, and a moving plate anti-tipping claw fastening plate is fixed to the four corners of the upward-facing side by screws. The end of the moving plate anti-tipping claw fastening plate facing the support plate bracket forms an n-shaped cavity with the opening facing downward. The seat frame support connecting plate is rectangular in shape, and a seat frame support connecting plate fastening plate is fixed to the four corners of the downward-facing side. The position of the seat frame support connecting plate fastening plate corresponds to the moving plate anti-tipping claw fastening plate, and the end of the seat frame support connecting plate fastening plate away from the drive plate mating cavity forms a U-shaped cavity with the opening facing upward. The seat frame support connecting plate fastening plate and the moving plate anti-tipping claw fastening plate fasten together, and the seat frame support... The connecting plate rotates clockwise or counterclockwise relative to the fixed chassis of the left and right moving slide rail mechanism within the length range of the seat frame supporting connecting plate fastening plate; on the upward-facing side of the fixed plate, at intervals corresponding to the positions of the roller pressure plate fixing screws, a screw base support cavity is formed, and the base of the roller pressure plate fixing screw is supported in the screw base support cavity; on the roller pressure plate, at intervals corresponding to the positions of the set of roller pressure plate fixing screws, roller pressure plate fixing screw through holes are provided, and after the set of roller pressure plate fixing screws passes through the roller pressure plate fixing screw through holes from bottom to top, they are locked by roller pressure plate fixing screw locking nuts screwed to the ends of the set of roller pressure plate fixing screws; a fixed plate fixing plate wire passage hole is provided at the center of the fixed plate, and a fixed plate wire passage cavity is provided at the center of the fixed plate, and the drive plate cavity is configured as a drive plate wire cavity.

[0014] In yet another specific embodiment of this utility model, the gear drive device includes a gear drive motor, a gear drive reduction gearbox, a gear drive reduction gearbox mounting bracket, and a gear drive gear. The gear drive motor is fixed to and drives the gear drive reduction gearbox. The gear drive reduction gearbox, along with the gear drive motor, is fixed to the gear drive reduction gearbox mounting bracket. The output shaft of the gear drive reduction gearbox faces upward, and an output shaft gear is provided on the output shaft. The output shaft of the gear drive reduction gearbox, along with the gear drive motor, drives the gear drive reduction gearbox mounting bracket. The shaft gear extends upwards through the clearance hole of the gear drive device and the clearance hole of the drive gear to the top of the fixed plate. The output shaft gear of the gear drive reducer meshes with the inner gear ring of the gear drive gear. The upper end of the output shaft of the gear drive reducer rotatably engages with the output shaft mating hole. The outer gear ring of the gear drive gear meshes with the gear ring of the gear cavity. The gear drive gear drives the gear disk to rotate. The fixed bracket of the gear drive reducer is fixed to the fixed base of the left and right moving slide rail mechanism at a position corresponding to the downward-facing side of the fixed plate cavity.

[0015] In another specific embodiment of this utility model, a fixing screw hole for a gear drive gearbox fixing bracket is provided on the bottom wall of the fixed plate cavity. A bracket fixing screw hole is provided on the fixed plate corresponding to the fixing screw hole for the gear drive gearbox fixing bracket. The gear drive gearbox fixing bracket is fixed to the fixed plate and the left and right moving slide rail mechanism fixing base together by bracket fixing screws passing from bottom to top through the bracket screw hole, the gear drive gearbox fixing bracket fixing screw hole and the bracket fixing screw hole formed on the gear drive gearbox fixing bracket. The gear drive motor is a motor with forward and reverse rotation function.

[0016] The technical advantages of the present invention are as follows: By modularizing the front-to-back sliding rail mechanism, the left-to-right sliding rail mechanism, the seat rotation mechanism, and the seat frame from bottom to top, the structure is simplified for easy manufacturing and installation, while also providing multi-functional adjustment for the car seat. Because the rear end of the seat can be adjusted by the seat rear end lifting control mechanism, which in turn adjusts the rear end of the seat frame accordingly, the height difference between the rear end of the seat and the bottom of the backrest can be compensated when the backrest is adjusted to a flat position relative to the rear end of the seat, thus enhancing reclining comfort. Furthermore, the modular design ensures excellent strength and prevents damage during use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 The diagram shows the structural design of the seat frame and the rear lifting mechanism of the seat seat.

[0019] Figure 3 for Figure 1 and Figure 2 A detailed structural diagram of the first lifting device of the right support beam of the rear lifting mechanism of the seat shown in the diagram;

[0020] Figure 4 for Figure 1 The diagram shows a detailed structural diagram of the seat rotation mechanism.

[0021] In the picture:

[0022] 1. Front and rear sliding rail mechanism; 11. Seat and basin connecting plate; 111. Left and right sliding rail connecting frame;

[0023] 2. Left and right moving slide rail mechanism; 21. Front slide rail assembly; 22. Rear slide rail assembly; 23. Slide rail assembly connecting crossbeam; 24. Moving slide rail left and right displacement drive device;

[0024] 3. Seat rotation mechanism; 31. Left and right moving slide rail mechanism fixed chassis; 311. Support plate bracket; 3111. Gear plate support cavity; 31111. Fixed plate fixing cavity; 31112. Gear plate drive device clearance hole; 31113. Gear plate drive reduction gearbox fixing bracket fixing screw hole; 312. Moving plate anti-tipping claw fastening plate; 3121. Moving plate anti-tipping claw fastening plate screw; 31211. Moving plate anti-tipping claw fastening plate screw locking nut; 3122. Moving plate anti-tipping claw fastening plate n-shaped cavity; 32. Fixed plate fixing plate; 321. Drive gear clearance hole; 322. Fixed plate fixing screw hole; 323. Screw base support. 324. Cavity; 325. Fixed plate wire hole; 33. Bracket fixing screw hole; 34. Gear plate support; 35. Gear plate seat cavity; 36. Fixed plate mating cavity; 37. Drive plate connecting screw; 38. Locking nut; 39. Gear plate; 30. Gear plate boss; 31. Gear plate cavity; 32. Gear ring; 33. Gear plate pressure ring; 34. Gear plate pressure ring cavity; 35. Roller spacer; 36. Roller; 37. Support block; 38. Fixed plate; 39. Output shaft mating hole; 30. Fixed plate rim; 30. Fixed plate fixing screw; 31. Roller pressure plate fixing screw. 35241. Roller pressure plate fixing screw locking nut; 3525. Fixed plate wire guide cavity; 353. Roller pressure plate; 3531. Roller pressure plate fixing screw through hole; 3532. Roller pressure plate wire guide cavity; 354. Gear disc retaining ring screw hole; 36. Gear disc drive device; 361. Gear disc drive motor; 362. Gear disc drive reduction gearbox; 3621. Gear disc drive reduction gearbox output shaft; 36211. Gear disc drive reduction gearbox output shaft gear; 363. Gear disc drive reduction gearbox fixing bracket; 3631. Bracket screw hole; 364. Gear disc drive gear; 3641. Gear disc drive gear internal gear ring; 37. Drive disc; 37 1. Drive disc screw hole; 372. Drive disc cavity; 373. Drive disc wing; 38. Support disc; 381. Bearing ring support stepped ring; 3811. Upper surface of bearing ring support stepped ring; 38111. Bearing ring; 382. Support disc cavity; 383. Support disc convex ring; 39. Seat frame support connecting disc; 391. Support disc convex ring insertion groove; 392. Drive disc mating cavity; 3921. Drive disc wing cavity; 3922. Drive disc push screw shaft fixing plate; 39221. Drive disc push screw shaft; 393. Seat frame support connecting disc fastening plate; 3931. Seat frame support connecting disc fastening plate U-shaped cavity;

[0025] 4. Seat frame; 41. First side panel; 42. Second side panel; 43. Front support beam of side panel; 44. Rear support beam of side panel;

[0026] 5. Rear seat lifting control mechanism; 51. First lifting device for rear support beam; 511. Lifting drive motor; 512. Lifting drive reduction gearbox; 5121. Final stage power output shaft of lifting drive reduction gearbox; 51211. Lifting gear plate action gear; 5122. Lifting drive reduction gearbox mounting base; 51221. Hinge arm plate support step seat; 51222. First screw of lifting drive reduction gearbox mounting base; 51223. Second screw of lifting drive reduction gearbox mounting base; 51224. Compensating screw hole of lifting drive reduction gearbox mounting base; 51225. Limiting screw of first screw of lifting drive reduction gearbox mounting base. Nut, 51226. Second screw limiting nut for lifting drive gearbox mounting base, 513. Hinge arm plate, 5131. Lifting gear plate action gear clearance hole, 5132. First screw through hole for hinge arm plate, 5133. Second screw through hole for hinge arm plate, 5134. Reinforcing connecting screw for lifting drive gearbox mounting base, 51341. Reinforcing connecting screw limiting nut for lifting drive gearbox mounting base, 5135. Hinge arm plate stop bracket connecting screw, 51351. Hinge arm plate stop bracket connecting screw limiting nut, 5136. Lifting gear plate pivot half shaft, 5137a. First side plate hinge pin. 5137b. Lifting device connecting beam fixed edge; 5137c. Seat rotation mechanism first fixed ear; 5137d. Seat rotation mechanism second fixed ear; 5137e. Seat rotation mechanism first fixed screw; 5137f. Seat rotation mechanism second fixed screw; 5137g. Lifting device connecting beam screw hole; 5137h. First side plate hinge screw hole; 5137J. Locking nut; 5137k. Locking nut; 514. Lifting tooth plate; 5141. Plate edge arc tooth section; 5142. Limiting sleeve insertion cavity; 5143. Lifting tooth plate hinge arm; 51431. Lifting tooth plate hinge. 5144. Lifting tooth plate pivot support hole; 515. Transition hinge plate; 5151. Transition hinge plate rear support beam hinge hole; 516. Stop; 5161. Stop plate connecting screw hole; 5162. Stop plate fixing screw hole; 5163. Hinge arm plate stop plate connecting screw hole; 517. Limit sleeve; 5171. Limit sleeve central through hole; 518. Reinforcing tooth plate; 5181. Reinforcing tooth plate tooth; 52. Rear support beam second lifting device; 53. Lifting device connecting crossbeam; 531. Lifting device connecting crossbeam fixing screw; 5311. Lifting device connecting crossbeam fixing screw locking nut. Detailed Implementation

[0027] In order to better understand the technical essence and beneficial effects of this utility model, it will be described in detail below by way of embodiments. However, the description of the embodiments is not a limitation of the present utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be regarded as the protection scope of the technical solution of this utility model.

[0028] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are based on the current position. Figure 1 The location and state of the object are taken as examples, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0029] Please see Figure 1 The diagram illustrates the structural system of a multi-functional car seat, including a front-to-back sliding rail mechanism 1, a left-to-right sliding rail mechanism 2, a seat rotation mechanism 3, and a seat frame 4. The front-to-back sliding rail mechanism 1 is fixed to the car's floor in use. The left-to-right sliding rail mechanism 2 is connected to the front-to-back sliding rail mechanism 1 at a position above it. The seat rotation mechanism 3 is fixed to the left-to-right sliding rail mechanism 2 at a position above it. The seat frame 4 includes a first side plate 41 and a second side plate 42. The first and second side plates 41 and 42 are spaced apart from each other and parallel to each other. The front ends of the first and second side plates 41 and 42 are supported and connected by a front support beam 43, while the rear ends of the first and second side plates 41 and 42 are supported and connected by a rear support beam 44.

[0030] The key technical points of the technical solution provided by this utility model are as follows: the aforementioned seat rear end adjustment device includes a seat rear end lifting control mechanism 5 hinged between the opposing sides of the aforementioned first and second side plates 41 and 42 for raising the first and second side plates 41 and 42 upwards or lowering the end of the first and second side plates 41 and 42 toward the aforementioned side plate rear support beam 44. The seat rear end lifting control mechanism 5 is fixed to the seat rotation mechanism 3 at a position above the aforementioned seat rotation mechanism 3.

[0031] because Figure 1 The structure of the front and rear moving slide rail mechanism 1 shown in this utility model is essentially the same as that of the one published by the applicant under publication number CN119796009A (named: High-strength electric slide rail for automobile seats). The only difference is that a left and right moving slide rail connecting frame 111 is added to each end of the seat basin connecting plate 11 to meet the fixed connection of the left and right moving slide rail mechanism 2. Therefore, the applicant will not elaborate on the aforementioned front and rear moving slide rail mechanism 1.

[0032] And because Figure 1The structure of the left-right moving slide rail mechanism 2 of this utility model is essentially the same as that proposed by the applicant and published in CN119858491A (title: Adjustable front-back and left-right car seat slide rail). More specifically, the left-right moving slide rail mechanism 2 is equivalent to the movable slide rail front-back moving adjustment mechanism involved in the aforementioned CN119858491A. The only difference is that a slide rail assembly connecting beam 23 is added between the left ends of the front slide rail assembly 21 and the rear slide rail assembly 22 in the structural system of the left-right moving slide rail mechanism 2. The movable slide rail left-right displacement driving device 24 is set between the right ends of the front and rear slide rail assemblies 21 and 22. The bottom ends of the front slide rail assembly 21 are respectively connected to... Figure 1 The aforementioned pair of left and right sliding slide rail connecting brackets 111, located at the front, are fixed, while the bottom ends of the rear slide rail assembly 22 are respectively connected to... Figure 1 The aforementioned pair of left-right sliding rail connecting brackets 111, located at the rear, are fixed. In view of the foregoing, the applicant will not elaborate further on the left-right sliding rail mechanism 2. The aforementioned front-back sliding rail mechanism 1 and left-right sliding rail mechanism 2 essentially and undoubtedly refer to the seat's front-back sliding rail mechanism and seat's left-right sliding rail mechanism, respectively.

[0033] The applicant should clarify that although the front-to-back sliding rail mechanism 1 and the left-to-right sliding rail mechanism 2 of this utility model are substantially the same as those in CN119796009A and CN119858491A, this does not mean that they are mandatory structures. Any change to the structure of the front-to-back sliding rail mechanism 1 and the left-to-right sliding rail mechanism 2 should be considered as not deviating from the overall technical solution scope defined by this utility model.

[0034] Please see Figure 2 The aforementioned seat rear end lifting control mechanism 5 includes a rear support beam first lifting device 51, a rear support beam second lifting device 52, and a lifting device connecting beam 53. The rear support beam first lifting device 51 is hinged to the side of the aforementioned first side plate 41 facing the second side plate 42. The rear support beam second lifting device 52 is hinged to the side of the aforementioned second side plate 42 facing the first side plate 41 and corresponds to the rear support beam first lifting device 51. The rear support beam first lifting device 51 and the rear support beam second lifting device 52 are fixed to the seat rotation mechanism 3 at a position corresponding to the upper part of the aforementioned seat rotation mechanism 3. The lifting device connecting beam 53 connects the opposing sides of the rear support beam first and second lifting devices 51 and 52 extending to one end of the aforementioned side plate front support beam 43.

[0035] Please see Figure 3 And combined Figures 1 to 2Since the structure of the second lifting device 52 of the rear support beam, which is hinged to the side of the second side plate 42 facing the first side plate 41, is the same as the structure of the first lifting device 51 of the rear support beam, which is hinged to the side of the first side plate 41 facing the second side plate 42, that is, since the structure of the second lifting device 52 of the rear support beam, which is hinged to the left side of the second side plate 42, is the same as the structure of the first lifting device 51 of the rear support beam, which is hinged to the right side of the first side plate 41, the structures of the first and second lifting devices 51 and 52 of the rear support beam are the same as each other, the applicant will only describe the first lifting device 51 of the rear support beam in detail below. The first lifting device 51 for the rear support beam includes a lifting drive motor 511, a lifting drive reduction gearbox 512, a hinged arm plate 513, a lifting toothed plate 514, a transition hinged plate 515, a stop 516, and a limiting sleeve 517. The lifting drive motor 511 is fixed to the lifting drive reduction gearbox 512 in a cantilever state and is drivenly connected to the lifting drive reduction gearbox 512. The lifting drive reduction gearbox 512, together with the lifting drive motor 511, is fixed to the rear end of the aforementioned hinged arm plate 513 on one side facing the aforementioned second lifting device 52 for the rear support beam via a lifting drive reduction gearbox fixing seat 5122. The lifting drive gearbox 512's final stage power output shaft 5121 faces rearward and is equipped with a lifting gear plate 51211. The front end of the hinge arm plate 513 is hinged to the front end of the aforementioned first side plate 41 facing the aforementioned second side plate 42, while the rear end of the hinge arm plate 513 is fixed to the aforementioned lifting drive gearbox mounting base 5122. A lifting gear plate 5131 clearance hole 5131 is provided at the rear end of the hinge arm plate 513. The wall of the clearance hole 5131 is hinged to the left side of the lifting drive gearbox mounting base 5122. The arm plate support step seat 51221 cooperates with the aforementioned lifting drive reduction gearbox final stage power output shaft 5121, together with the aforementioned lifting gear plate action gear 51211, extending to the left side of the lifting gear plate action gear clearance hole 5131. The lifting gear plate 514 corresponds to the rear end of the hinged arm plate 513 facing the aforementioned first side plate 41. One end of the lifting gear plate 514 is hinged to the aforementioned hinged arm plate 513, and a plate edge arc tooth segment 5141 is formed on the lower surface of one end of the lifting gear plate 514. The aforementioned lifting gear plate action gear 51211 passes through the aforementioned lifting gear plate action gear clearance hole 5131. After 131, it engages with the arc-shaped toothed segment 5141 of the plate edge. A limiting sleeve insertion cavity 5142 penetrating the thickness direction of the lifting toothed plate 514 is also provided at one end of the lifting toothed plate 514. The other end of the lifting toothed plate 514 is narrowed to form a lifting toothed plate hinge arm 5143. The lifting toothed plate hinge arm 5143 is hinged to one end of the transition hinge plate 515. At the other end of the transition hinge plate 515, a transition hinge plate rear support beam hinge hole 5151 is formed. The transition hinge plate rear support beam hinge hole 5151 is hinged to the end of the aforementioned side plate rear support beam 44 facing the aforementioned first side plate 41.One end of the stop 516 corresponds to the rear side of one end of the lifting gear plate 514 and is fixed to the aforementioned lifting drive reduction gearbox mounting base 5122. The other end of the stop 516, at the position corresponding to the other end of the lifting gear plate hinge arm 5143, abuts against the rear right end of the hinge arm plate 513 and is simultaneously fixed to the hinge arm plate 513 and the lifting drive reduction gearbox mounting base 5122. The end of the aforementioned lifting drive reduction gearbox final stage power output shaft 5121 is rotatably supported in the middle of the stop 516. The limiting sleeve 517 is inserted into the aforementioned limiting sleeve insertion cavity 5142 for sliding engagement with the limiting sleeve insertion cavity 5142, and the limiting sleeve 517 is also supported on the aforementioned lifting drive reduction gearbox mounting base 5122.

[0036] Please continue reading Figure 3 And combined Figure 1 and Figure 2In this embodiment, the aforementioned lifting drive motor 511 is a motor with forward and reverse rotation functions; a lifting drive gearbox mounting base 5122 has a first lifting drive gearbox mounting base screw 51222 at its right end and a second lifting drive gearbox mounting base screw 51223 at its left end, and a lifting drive gearbox mounting base compensation screw hole 51224 is provided at the lower part of the left end; a first hinge arm plate screw through hole 5132 is provided at the right end of the aforementioned hinge arm plate 513 at the position corresponding to the first lifting drive gearbox mounting base screw 51222, and a second hinge arm plate screw through hole 5132 is provided at the position corresponding to the second lifting drive gearbox mounting base screw 51223. A screw passes through hole 5133. At one end of the aforementioned stop 516, a stop connecting screw hole 5161 is provided at a position corresponding to the aforementioned limiting sleeve insertion cavity 5142. At the other end of the stop 516, a stop fixing screw hole 5162 is provided at a position corresponding to the aforementioned lifting drive gearbox fixing seat first screw 51222. Above the stop fixing screw hole 5162, a hinged arm plate stop connecting screw hole 5163 is also provided. The aforementioned lifting drive gearbox fixing seat first screw 51222 passes sequentially through the hinged arm plate first screw through hole 5132 and the stop fixing screw hole 5162, and is screwed onto the end of the lifting drive gearbox fixing seat first screw 51222. The lifting drive gearbox mounting base is secured by a first screw limiting nut 51225. The aforementioned second screw 51223 of the lifting drive gearbox mounting base passes sequentially through the second screw through hole 5133 of the hinge arm plate, the central through hole 5171 of the limiting sleeve 517, and the stop bracket connecting screw hole 5161, and is secured by the second screw limiting nut 51226 of the lifting drive gearbox mounting base screw 51223 screwed onto the end of the second screw 51223. A lifting drive gearbox mounting base reinforcing connecting screw 5134 is provided on the right rear side of the aforementioned hinge arm plate 513, corresponding to the aforementioned lifting drive gearbox mounting base compensation screw hole 51224. A connecting screw 5134 passes through a screw hole on the right rear side of the hinge arm plate 513 and is screwed into the lifting drive gearbox mounting base compensation screw hole 51224, and is limited by the lifting drive gearbox mounting base reinforcement connecting screw limiting nut 51341 screwed onto the end of the lifting drive gearbox mounting base reinforcement connecting screw 5134; a hinge arm plate stop connecting screw 5135 is provided at the right end of the aforementioned hinge arm plate 513 and at a position corresponding to the aforementioned hinge arm plate stop connecting screw hole 5163, the hinge arm plate stop connecting screw 5135 is screwed into the aforementioned hinge arm plate stop connecting screw hole 5163 and is limited by the hinge arm plate stop connecting screw limiting nut 51351 screwed onto its end;A lifting gear plate pivot half-shaft 5136 is provided on the rear right side of the aforementioned hinge arm plate 513 and at a position corresponding to the upper left of the aforementioned lifting drive reduction gearbox fixing seat reinforcing connecting screw 5134. A lifting gear plate pivot support hole 5144 is provided at one end of the aforementioned lifting gear plate 514 and at a position corresponding to the lifting gear plate pivot half-shaft 5136. This lifting gear plate pivot support hole 5144 is pivotally mounted on the lifting gear plate pivot half-shaft 5136. The aforementioned lifting gear plate hinge arm 5143 is hinged to one end of the aforementioned transition hinge plate 515 via a lifting gear plate hinge arm pin 51431.

[0037] See key points Figure 3 And combined Figure 2 A first side plate hinge pin 5137a is provided at the front end of the aforementioned hinge arm plate 513, and the first side plate hinge pin 5137a is hinged to the front right side of the first side plate 41 of the aforementioned seat frame 4. Figure 1 As shown, the front bottom of the hinged arm plate 513 is folded horizontally to the right to form a lifting device connecting beam fixed edge 5137b and a seat rotation mechanism first fixed ear 5137c. The rear bottom of the hinged arm plate 513 is folded horizontally forward to form a seat rotation mechanism second fixed ear 5137d. The left end of the aforementioned lifting device connecting beam 53 is fixed to the lifting device connecting beam fixed edge 5137b by the lifting device connecting beam fixed screw 531. The seat rotation mechanism first fixed ear 5137c is fixed to the aforementioned seat rotation mechanism 3 by the seat rotation mechanism first fixed screw 5137e. The aforementioned seat rotation mechanism second fixed ear 5137d is also fixed to the aforementioned seat rotation mechanism 3 by a pair of seat rotation mechanism second fixed screws 5137f.

[0038] Depend on Figure 3 As shown, a lifting device connecting beam screw hole 5137g and a first side plate hinge screw hole 5137h are shown on the first fixing lug 5137c of the aforementioned seat rotation mechanism. The left end of the aforementioned lifting device connecting beam 53 is fixed to the aforementioned first fixing lug 5137c of the seat rotation mechanism by the previously mentioned lifting device connecting beam fixing screw 531 at the position corresponding to the lifting device connecting beam screw hole 5137g. To clearly illustrate the connection relationship, in Figure 1 The image shows the lifting device connecting beam fixing screw 531, which fixes the first fixing lug 5137c of the seat rotation mechanism and the left end of the lifting device connecting beam 53 to the aforementioned seat frame support connecting plate 39. The screw 531 is screwed onto the end of the lifting device connecting beam fixing screw 531. Figure 1 The lifting device at the upper end of the position shown is connected to the crossbeam fixing screw and locking nut 5311. Figure 1 , Figure 2(As shown) Locking. The aforementioned first side plate hinge pin 5137a is a hinge screw and is hinged to the front right side of the first side plate 41 at the position corresponding to the first side plate hinge screw hole 5137h. The aforementioned second fixing lug 5137d of the seat rotation mechanism is also similarly represented by the one shown in the diagram. Figure 1 The second fixing screw 5137f of the seat rotation mechanism is fixed to the seat frame support connecting plate 39 of the structural system of the seat rotation mechanism 3. That is, the second fixing screw 5137f of the seat rotation mechanism fixes the second fixing ear 5137d of the seat rotation mechanism to the seat frame support connecting plate 39 at the position corresponding to the screw hole opened on the second fixing ear 5137d of the seat rotation mechanism, and is locked by the locking nut 5137J at the end of the second fixing screw 5137f of the seat rotation mechanism.

[0039] Please pay attention. Figure 3 A reinforcing tooth plate 518 is fixed on the right rear end of the aforementioned lifting tooth plate 514. A reinforcing tooth plate 5181 is formed on the downward-facing side of the reinforcing tooth plate 518. The reinforcing tooth plate 5181 is aligned with the teeth on the aforementioned plate edge arc tooth segment 5141. The aforementioned lifting tooth plate action gear 51211 meshes with the aforementioned plate edge arc tooth segment 5141 and the aforementioned reinforcing tooth plate 5181 at the same time.

[0040] By operating the electrical controller located at a suitable position on the car seat, the lifting drive motor 511 is activated, which drives the lifting drive reduction gearbox 512. The lifting gear plate action gear 51211 on the final stage power output shaft 5121 of the lifting drive reduction gearbox drives the lifting gear plate 514 and the reinforcing gear plate 518, causing the lifting gear plate 514 and the reinforcing gear plate 518 to rotate around the lifting gear plate pivot half shaft 5136. At the same time, the stop 516 swings upward, driving the transition hinge plate 515 through the lifting gear plate hinge arm pin 51431. Since the transition hinge plate rear support beam hinge hole 5151 on the transition hinge plate 515 is hinged to the side plate rear support beam 44, it drives the side plate rear support beam 44 to lift. The side plate rear support beam 44 drives the rear ends of the first and second side plates 41 and 42 to lift accordingly. In this situation, the height difference between the bottom of the reclined chair back (the bottom refers to the part of the chair back in its upright state) and the rear end of the seat surface, i.e., the rear end of the seat surface, can be compensated. Conversely, after the chair back is returned to its upright position, the aforementioned lifting drive motor 511 rotates in the opposite direction to the aforementioned operating condition.

[0041] Based on professional knowledge, while the rear end of the side plate rear support beam 44 is raised or lowered due to the operation of the aforementioned first lifting device 51 of the rear support beam, the second lifting device 52 of the rear support beam works synchronously with the first lifting device 51 of the rear support beam.

[0042] Please see Figure 4And combined Figure 1The aforementioned seat rotation mechanism 3 includes a left and right sliding rail mechanism fixing base 31, a fixed plate fixing plate 32, a toothed disc support 33, a toothed disc 34, a toothed disc pressure ring 35, a toothed disc drive device 36, a drive plate 37, a support plate 38, and a seat frame support connecting plate 39. The left and right sliding rail mechanism fixing base 31 is fixed to the left and right sliding rail mechanism 2 at a position above the aforementioned left and right sliding rail mechanism 2. A support plate support 311 is formed in the middle of the upward-facing side of the left and right sliding rail mechanism fixing base 31, which protrudes from the upper surface of the left and right sliding rail mechanism fixing base 31. A downwardly recessed toothed disc support cavity 3111 is formed in the central area of ​​the support plate support 311. The toothed disc support cavity 3111 is recessed into the toothed disc. The surface of the disk support cavity 3111 has a fixed disk fixing cavity 31111. A toothed disk drive device clearance hole 31112 is formed in the center of the fixed disk fixing cavity 31111. The fixed disk fixing disk 32 is disposed and fixed in the fixed disk fixing cavity 31111. A drive gear clearance hole 321 is formed on the fixed disk fixing disk 32, corresponding to the position of the toothed disk drive device 36, extending from the upper surface of the fixed disk fixing disk 32 to the lower surface. The toothed disk support 33 is supported in the aforementioned toothed disk support cavity 3111. A toothed disk seat cavity 331 is formed on the upward-facing side of the toothed disk support 33. A fixed disk fixing disk mating cavity 3311 is formed in the center of the toothed disk seat cavity 331. The aforementioned fixed disk fixing disk 32 extends into the fixed disk fixing disk mating cavity 3311. The toothed disc 34 is supported within the toothed disc seat cavity 331. A set of toothed disc bosses 341 are formed on the upward-facing surface of the toothed disc 34 at equal intervals around its circumference. A toothed ring 3421 is formed on the cavity wall of the toothed disc cavity 342 of the toothed disc 34 at equal intervals around its circumference. The drive disc 37, together with the toothed disc pressure ring 35, is fixed to the aforementioned toothed disc support 33. A set of roller spacers 3511 extending towards the center of the toothed disc pressure ring cavity 351 are formed on the cavity wall of the toothed disc pressure ring cavity 351 of the toothed disc pressure ring 35 at equal intervals around its circumference. A support block 3513 is provided on both sides of each roller spacer 3511. On the side of block 3513 facing away from roller spacer 3511, there is a roller 3512 supported on the upward-facing surface of the gear disk 34 along with the support block 3513. The support block 3513, the roller 3512, and the roller spacer 3511 correspond to two adjacent gear disk bosses 341 in a set of gear disk bosses 341. A fixed disk 352 is provided in the aforementioned gear disk pressure ring cavity 351. An output shaft mating hole 3521 is opened on the fixed disk 352 at the position corresponding to the gear disk drive device 36. The fixed disk edge 3522 of the fixed disk 352 is tangent to the aforementioned roller 3512. The fixed disk 352 is fixed to the fixed disk fixing screw hole 322 opened on the fixed disk fixing disk 32 by spaced fixed disk fixing screws 3523.A roller pressure plate 353 is also provided on the upper surface corresponding to the toothed disc pressure ring 35. The roller pressure plate 353 limits the upper end face of the aforementioned roller 3512 and support block 3513. The roller pressure plate 353 is fixed to the fixed disc 352 by a set of roller pressure plate fixing screws 3524 arranged on the aforementioned fixed disc 352 and spaced apart. The drive disc 37 is located above the roller pressure plate 353. The drive disc connecting screw 332 located on the toothed disc support 33 passes from bottom to top through the toothed disc pressure ring screw hole 354 on the toothed disc pressure ring 35 and the drive disc screw hole 371 on the drive disc 37, and extends to the top of the drive disc 37. Locking nut 3321 at the upper end of nail 332 locks the drive disc 37. The central area of ​​the drive disc 37 forms the drive disc cavity 372. The support disc 38 is supported and fixed to the aforementioned support disc bracket 311 by screws. A bearing ring support step ring 381 is formed in the central area of ​​the support disc 38 and around the perimeter of the support disc 38. A bearing ring 38111 is provided on the upper surface 3811 of the bearing ring support step ring 381. The central area of ​​the bearing ring support step ring 381 is the support disc cavity 382. The four corners of the seat frame support connecting disc 39 facing downward are rotatably connected to the four corners of the aforementioned left and right moving slide rail mechanism fixing base 31 facing upward. The corners are fastened together. A support plate convex groove 391 is formed on the seat frame support connecting plate 39 facing downwards, corresponding to the support plate convex ring 383 of the support plate 38. The support plate convex ring 383 extends into the support plate convex ring insertion groove 391. A drive plate mating cavity 392 with the same shape as the aforementioned drive plate 37 is formed in the central region of the seat frame support connecting plate 39. The drive plate wing 373 of the drive plate 37 corresponds slightly below the drive plate wing cavity 3921 of the drive plate mating cavity 392. A drive plate push screw shaft fixing plate 3922 is formed between each pair of adjacent drive plate wing cavities 3921. A longitudinal... A drive disc 37 is fixed in a fixed state, pushing a screw shaft 39221. When the drive disc 37 rotates, the edge of the drive disc wing 373 supported on the drive disc pushing screw shaft 39221 pushes the drive disc pushing screw shaft 39221, causing the aforementioned seat frame support connecting disc 39 to rotate. The gear drive device 36 is fixed to the downward-facing side of the gear disc support cavity 3111 and corresponds to the aforementioned gear drive device clearance hole 31112. After passing upward through the aforementioned drive gear clearance hole 321, the gear drive device 36 enters the aforementioned gear disc cavity 342 and forms a meshing pair with the aforementioned gear ring 3421. The top of the gear drive device 36 also extends into the aforementioned output shaft mating hole 3521.

[0043] Depend on Figure 4As shown, since there are nine toothed disc bosses 341 on the upper surface of the toothed disc 34, spaced apart in a circumferential direction around the upper surface of the toothed disc 34, the number of toothed disc boss spaces formed between each pair of adjacent toothed disc bosses 341 is also nine. The aforementioned roller spacer 3511, two rollers 3512, and two support blocks 3513 constitute a unit or a combination of backlash elimination and impact protection devices. Therefore, based on the applicant's above description and in conjunction with... Figure 4 As can be clearly seen from the illustration, there are nine backlash elimination and impact protection devices, each corresponding to one of the aforementioned gear plate boss spaces. That is, each gear plate boss space is allocated a backlash elimination and impact protection device composed of one roller spacer 3511, two rollers 3512 and two support blocks 3513.

[0044] Depend on Figure 4 As can be seen from the illustration, a support block 3513 is arranged on each side of a roller spacer 3511 in contact with the roller spacer 3511, and a roller 3512 is arranged on the side of each support block 3513 facing away from the roller spacer 3511. However, since the aforementioned quantity is only one embodiment of this utility model, it cannot be considered as a necessary quantity that cannot be reasonably increased or decreased. That is to say, if the number of toothed plate bosses 341 is increased or decreased, and the number of toothed plate boss spaces is changed accordingly, and the number of the aforementioned backlash elimination and anti-impact device composed of one roller spacer 3511, two rollers 3512 and two support blocks 3513 is increased or decreased accordingly, then it should be regarded as a change in form rather than substance, and should be considered as not departing from the technical connotation disclosed in this utility model.

[0045] In this embodiment, the aforementioned support block 3513 is preferably made of rubber, but it can also be made of nylon or other equivalent materials.

[0046] Please continue reading Figure 4In this embodiment, the aforementioned left and right moving slide rail mechanism fixing chassis 31 is rectangular in shape, and a moving plate anti-tipping claw fastening plate 312 is fixed at each of the four corners on the upward side by a moving plate anti-tipping claw fastening plate screw 3121. The end of the moving plate anti-tipping claw fastening plate 312 facing the aforementioned support plate bracket 311 forms a downward-facing n-shaped cavity 3122. The figure shows the moving plate anti-tipping claw fastening plate screw locking nut 31211 screwed onto the end, i.e., the upper end, of the moving plate anti-tipping claw fastening plate screw 3121; the aforementioned seat bone The frame support connecting plate 39 is rectangular in shape, and a seat frame support connecting plate fastening plate 393 is fixed at each of the four corners on the downward-facing side. The position of the seat frame support connecting plate fastening plate 393 corresponds to the aforementioned moving plate anti-tipping claw fastening plate 312. The end of the seat frame support connecting plate fastening plate 393 away from the aforementioned drive plate mating cavity 392 forms a seat frame support connecting plate fastening plate U-shaped cavity 3931 with the cavity opening facing upward. The seat frame support connecting plate fastening plate 393 and the aforementioned moving plate anti-tipping claw fastening plate 312 are fastened together, and the seat frame... The support connecting plate 39 rotates clockwise or counterclockwise relative to the aforementioned left and right moving slide rail mechanism fixing base 31 within the length range of the aforementioned seat frame support connecting plate fastening plate 393; on the upward-facing side of the aforementioned fixed plate 32, and at intervals corresponding to the aforementioned roller pressure plate fixing screws 3524, screw base support cavities 323 are formed, and the base of the roller pressure plate fixing screws 3524 is supported in the screw base support cavities 323; on the aforementioned roller pressure plate 353, which has a roller pressure plate through-hole 3532 at the central position, and on the aforementioned set of rollers... Roller pressure plate fixing screw through holes 3531 are provided at intervals between the roller pressure plate fixing screws 3524. After the aforementioned set of roller pressure plate fixing screws 3524 passes through the roller pressure plate fixing screw through holes 3531 from bottom to top, they are locked by roller pressure plate fixing screw locking nuts 35241 screwed to the end of the set of roller pressure plate fixing screws 3524. A fixed plate fixing plate wire passage hole 324 is provided at the center of the aforementioned fixed plate 352. A fixed plate wire passage cavity 3525 is provided at the center of the aforementioned fixed plate 352. The aforementioned drive plate cavity 372 constitutes a drive plate wire cavity.

[0047] Depend on Figure 1 As shown and with Figure 1 Taking the positional state as an example, the aforementioned seat frame support connecting plate fastening plates 393, located on the left and right sides of the lower front part of the seat frame support connecting plate 39 (i.e., on the side with the corners facing downwards), are each fixed by the aforementioned first fixing screw 5137e of the seat rotation mechanism, and are further fixed by... Figure 1The locking nut 5137k shown is used for locking, and the aforementioned seat frame support connecting plate fastening plates 393, located on the lower rear part of the seat frame support connecting plate 39 (i.e., one on each side with the corners facing downwards), are each fixed by the aforementioned second fixing screw 5137f of the seat rotation mechanism, and are also fixed by... Figure 1 The locking nut 5137J shown is used for locking.

[0048] See you later Figure 4 The aforementioned gear drive device 36 includes a gear drive motor 361, a gear drive reduction gearbox 362, a gear drive reduction gearbox mounting bracket 363, and a gear drive gear 364. The gear drive motor 361 is fixed to and drives the gear drive reduction gearbox 362. The gear drive reduction gearbox 362, together with the gear drive motor 361, is fixed to the gear drive reduction gearbox mounting bracket 363. The output shaft 3621 of the gear drive reduction gearbox 362 faces upward, and an output shaft gear 36211 is provided on the output shaft 3621. The output shaft 3621 and the output shaft gear 36211 move from bottom to top. The aforementioned gear drive device extends to the top of the aforementioned fixed plate 32 via the clearance hole 31112 and the drive gear clearance hole 321. The output shaft gear 36211 of the gear drive gearbox meshes with the inner gear ring 3641 of the gear drive gear 364. The upper end of the output shaft 3621 of the gear drive gearbox rotatably engages with the aforementioned output shaft mating hole 3521. The outer gear ring of the gear drive gear 364 meshes with the gear ring 3421 of the aforementioned gear cavity 342. The gear drive gear 364 drives the gear disk 34 to rotate. The aforementioned gear drive gearbox fixing bracket 363 is fixed to the aforementioned left and right moving slide rail mechanism fixing base 31 at the position corresponding to the downward-facing side of the aforementioned fixed plate fixing cavity 31111.

[0049] Depend on Figure 4 As shown, a toothed disc drive reducer fixing bracket fixing screw hole 31113 is provided on the bottom wall of the aforementioned fixed plate fixing cavity 31111. A bracket fixing screw hole 325 is provided on the aforementioned fixed plate fixing plate 32 at a position corresponding to the toothed disc drive reducer fixing bracket fixing screw hole 31113. The aforementioned toothed disc drive reducer fixing bracket 363 is fixed together with the fixed plate fixing plate 32 and the aforementioned left and right moving slide rail mechanism fixing base 31 by bracket fixing screws passing from bottom to top through the bracket screw hole 3631, the toothed disc drive reducer fixing bracket fixing screw hole 31113 and the bracket fixing screw hole 325 formed on the toothed disc drive reducer fixing bracket 363. In this embodiment, the aforementioned toothed disc drive motor 361 is a motor with forward and reverse rotation function.

[0050] The applicant describes the use of this utility model. Since the electrical controller is set in a reasonable position on the car seat, such as the side, bottom, or even the front side or armrest of the seat, when the car seat, which is based on the seat frame 4, needs to be adjusted forward and backward, the passenger can operate the corresponding button on the electrical controller, such as a touch button. According to the teachings of CN119796009A and / or CN119858491A, the left and right moving slide rail mechanism 2, the seat rotation mechanism 3, the seat rear end lifting control mechanism 5, and the aforementioned car seat based on the seat frame 4 located on the seat rear end lifting control mechanism 5 can be adjusted forward and backward. The positive significance of forward and backward movement adjustment can be seen in the two aforementioned patents.

[0051] When the car seat needs to be adjusted to the left or right position, the aforementioned front-to-back sliding rail mechanism 1 is not activated. Instead, the passenger operates the corresponding touch button according to the instructions in CN119858491A to activate the left-to-right sliding rail mechanism 2. The left-to-right sliding rail mechanism 2 drives or carries the seat rotation mechanism 3, the seat rear lifting control mechanism 5, and the car seat mounted on the seat frame 4 to achieve left-to-right adjustment. For the positive significance of left-to-right adjustment, please refer to CN119858491A.

[0052] Since the working principle of the seat rear lifting control mechanism 5 has been explained above, it will not be repeated here.

[0053] When the aforementioned seat rotation mechanism 3 is to be operated, or to adjust its rotation, the occupant operates the corresponding touch button on the electrical controller to activate the gear drive motor 361 of the gear drive device 36 in the structural system of the seat rotation mechanism 3. The gear drive motor 361 drives the gear drive reduction gearbox 362, and the gear drive reduction gearbox output shaft gear 36211 on the output shaft 3621 of the gear drive reduction gearbox 362 drives the gear drive gear 364. Since the gear drive gear 364 meshes with the gear ring 3421 on the cavity wall of the gear cavity 342 of the gear disk 34, the gear drive gear 364 drives the gear disk 34 to rotate, and the gear disk 34 drives the gear disk pressure ring 35. Because the fixed plate rim 3522, which plays a backlash elimination role, is tangent to the roller 3512, instability caused by backlash during the movement of the aforementioned moving parts can be avoided, and even abnormal noise can be prevented. Since the gear plate support 33, gear plate pressure ring 35, and drive plate 37 are fixedly connected by drive plate connecting screws 332, when the gear plate 34 drives the gear plate pressure ring 35 to rotate, the gear plate support 33 and drive plate 37 also rotate. Thus, the drive plate wings 373 of the drive plate 37, through their action on the drive plate pushing screw shaft 39221, cause the seat frame support connecting plate 39, carrying the seat frame 4 mounted on it, to rotate, thereby rotating the car seat mounted on the seat frame 4. Taking third-row passengers as an example, for instance, the orientation can be changed from forward to rearward to facilitate business negotiations, family interaction, entertainment (such as playing chess or cards), or other activities with fourth-row passengers. When turning from rear to forward, simply operate the touch button in the opposite direction to reverse the operation of the gear plate drive motor 361.

[0054] During the rotation of the aforementioned gear disk 34, the fixed disk edge 3522 of the aforementioned static fixed disk 352 will press against the rollers in the rollers 3512 of the aforementioned backlash elimination and shockproof device structure system located in the rotational direction. The rollers in the rotational direction will squeeze or compress the support blocks in the rotational direction of the support blocks 3513, so that the gear disk pressure ring 35 has sufficient rotational clearance (or "room") to rotate with the gear disk 34. When the gear disk 34 stops rotating, the rollers previously subjected to the rotational direction by the fixed disk 352 are supported in the rotational direction. The ejection block reliably positions the rollers in the aforementioned rotational direction between the fixed plate rim 3522 and the side of the toothed disc retaining ring cavity 351 of the toothed disc retaining ring 35 facing the fixed plate rim 3522. This reliably locks the toothed disc retaining ring 35 together with the toothed disc 34 and eliminates gaps. Simultaneously, due to the action of the toothed disc boss 341 directly formed on the upward-facing side of the toothed disc 34, and the combined action of the rollers 3512 and the support block 3513, the toothed disc 34 is reliably held in the locked position, ultimately achieving the purpose of locking and eliminating gaps in the car seat. In the locked state, there is not even the slightest wobbling. In summary, during rotation, the tangential contact between the fixed plate rim 3522 and the roller 3512 allows the gear ring 35 and gear 34 to rotate freely. In the non-rotating state, the support block 3513 is released, and the roller 3512 reliably locks (positions) the gear ring 35 and gear 34 together. When the vehicle encounters severe bumps, impacts, emergency braking, emergency cornering, or even collisions, the car seat generates torque. When this torque is transmitted to the gear ring 35 and gear 34, they will not rotate because they are locked by the roller 3512, thus ensuring the car seat remains stationary and maximizing safety. Under these conditions, since the gear ring 35 and gear 34 do not rotate, they effectively protect the gear drive reduction gearbox 362 of the gear drive device 36's structural system, ultimately protecting the gear drive motor 361. Furthermore, the applicant's tests show that the rollers 3512 of a set of backlash elimination and shock-absorbing device structures, i.e., the nine pairs of rollers of nine sets or nine units of backlash elimination and shock-absorbing devices, can generate a clamping force greater than 3000 Newtons (3000N) through their coordinated action. The applicant should note that if the aforementioned toothed disc boss 341 and the upward-facing surface of the toothed disc 34 are configured as separate structures, then they should be considered equivalent technical means.

[0055] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A rear end of seat surface adjusting device of a multifunctional automobile seat, said multifunctional automobile seat comprising a front and rear moving slide rail mechanism (1), a left and right moving slide rail mechanism (2), a seat rotating mechanism (3) and a seat framework (4), the front and rear moving slide rail mechanism (1) being fixed to the floor of the automobile in the use state, the left and right moving slide rail mechanism (2) being connected to the front and rear moving slide rail mechanism (1) at a position corresponding to the upper side of the front and rear moving slide rail mechanism (1), the seat rotating mechanism (3) being fixed to the left and right moving slide rail mechanism (2) at a position corresponding to the upper side of the left and right moving slide rail mechanism (2), the seat framework (4) comprising a first side plate (41) and a second side plate (42), the first and second side plates (41, 42) being spaced apart from each other and parallel to each other, and the front ends of the first and second side plates (41, 42) being supported and connected by a side plate front support beam (43) at the side facing each other, and the rear ends of the first and second side plates (41, 42) being supported and connected by a side plate rear support beam (44) at the side facing each other, characterized in that: The chair back end adjusting device comprises a chair back end lifting control mechanism (5) hinged between the opposite sides of the first and second side plates (41, 42) for lifting the first and second side plates (41, 42) upward or resetting them downward toward one end of the side plate rear support beam (44), which is fixed above the seat rotating mechanism (3).

2. The multifunctional automobile seat according to claim 1, wherein: The chair back end lifting control mechanism (5) comprises a rear support beam first lifting device (51) hinged to the side of the first side plate (41) facing the second side plate (42), a rear support beam second lifting device (52) hinged to the side of the second side plate (42) facing the first side plate (41) and corresponding to the rear support beam first lifting device (51), and a lifting device connecting cross beam (53) connected between the opposite sides of the first and second lifting devices (51, 52) extending to one end of the side plate front support beam (43).

3. The back end of the seat surface adjusting device of the multifunctional car seat according to claim 2, characterized in that: The structure of the rear support beam second lifting device (52) hinged to one side of the second side plate (42) facing the first side plate (41) is the same as that of the rear support beam first lifting device (51) hinged to one side of the first side plate (41) facing the second side plate (42), which comprises a lifting drive motor (511), a lifting drive speed reducer (512), a hinged arm plate (513), a lifting tooth plate (514), a transition hinge plate (515), a stop bracket (516) and a limiting sleeve (517). The lifting drive motor (511) is fixed in a cantilever state with the lifting drive speed reducer (512) and is in transmission connection with the lifting drive speed reducer (512). The lifting drive speed reducer (512) is fixed to the rear end of the hinged arm plate (513) on one side of the rear support beam second lifting device (52) through a lifting drive speed reducer fixing seat (5122) together with the lifting drive motor (511). The lifting drive speed reducer final power output shaft (5121) of the lifting drive speed reducer (512) is oriented rearward and is provided with a lifting tooth plate acting gear (51211). The front end of the hinged arm plate (513) is hinged to one side of the front end of the first side plate (41) facing the second side plate (42), while the rear end of the hinged arm plate (513) is fixed with the lifting drive speed reducer fixing seat (5122), and a lifting tooth plate acting gear displacement hole (5131) is formed in the rear end of the hinged arm plate (513). The hole wall of the lifting tooth plate acting gear displacement hole (5131) is matched with the hinged arm plate supporting step seat (51221) provided on the left side of the lifting drive speed reducer fixing seat (5122). The lifting drive speed reducer final power output shaft (5121) together with the lifting tooth plate acting gear (51211) extends to the left side of the lifting tooth plate acting gear displacement hole (5131). The lifting tooth plate (514) is corresponding to the rear end of the hinged arm plate (513) on one side of the first side plate (41). One end of the lifting tooth plate (514) is hinged to the hinged arm plate (513), and a plate edge arc tooth section (5141) is formed on the lower surface of the one end of the lifting tooth plate (514). The lifting tooth plate acting gear (51211) is engaged with the plate edge arc tooth section (5141) after passing through the lifting tooth plate acting gear displacement hole (5131). A limiting sleeve placement cavity (5142) penetrating through the thickness direction of the lifting tooth plate (514) is formed in the other end of the lifting tooth plate (514). The other end of the lifting tooth plate (514) is narrowed to form a lifting tooth plate hinged arm (5143), which is hinged to one end of the transition hinge plate (515). A transition hinge plate rear support beam hinge hole (5151) is formed on the other end of the transition hinge plate (515), which is hinged to one end of the side plate rear support beam (44) facing the first side plate (41).One end of the stop bracket (516) corresponds to the rear side of one end of the lifting gear (514) and is fixed with the lifting drive reduction box fixing seat (5122), the other end of the stop bracket (516) abuts against the rear side of the right end of the articulated arm plate (513) at a position corresponding to the other end of the lifting gear articulated arm (5143) and is fixed with the articulated arm plate (513) and the lifting drive reduction box fixing seat (5122) at the same time, the terminal end of the lifting drive reduction box final power output shaft (5121) is rotatably supported in the middle of the stop bracket (516), the limiting sleeve (517) is placed in the limiting sleeve placing cavity (5142) to be slidably fitted with the limiting sleeve placing cavity (5142), and the limiting sleeve (517) is also supported on the lifting drive reduction box fixing seat (5122).

4. The multifunctional automobile seat according to claim 3, wherein: The lifting drive motor (511) is a motor with forward and reverse rotation function; a lifting drive reduction box fixing seat first screw (51222) is arranged at the right end of the lifting drive reduction box fixing seat (5122), a lifting drive reduction box fixing seat second screw (51223) is arranged at the left end, and a lifting drive reduction box fixing seat compensation screw hole (51224) is formed at the lower part of the left end; a hinged arm plate first screw through hole (5132) is formed at the right end of the hinged arm plate (513) and corresponds to the position of the lifting drive reduction box fixing seat first screw (51222), a hinged arm plate second screw through hole (5133) is formed at the position corresponding to the lifting drive reduction box fixing seat second screw (51223), a stop frame connecting screw hole (5161) is formed at one end of the stop frame (516) and corresponds to the position of the limiting sleeve insertion cavity (5142), a stop frame fixing screw hole (5162) is formed at the other end of the stop frame (516) and corresponds to the position of the lifting drive reduction box fixing seat first screw (51222), and a hinged arm plate stop frame connecting screw hole (5163) is also formed at the position above the stop frame fixing screw hole (5162); the lifting drive reduction box fixing seat first screw (51222) sequentially passes through the hinged arm plate first screw through hole (5132) and the stop frame fixing screw hole (5162) and is limited by a lifting drive reduction box fixing seat first screw limiting nut (51225) screwed at the end of the lifting drive reduction box fixing seat first screw (51222); the lifting drive reduction box fixing seat second screw (51223) sequentially passes through the hinged arm plate second screw through hole (5133), the limiting sleeve central through hole (5171) of the limiting sleeve (517), and the stop frame connecting screw hole (5161), and is limited by a lifting drive reduction box fixing seat second screw limiting nut (51226) screwed at the end of the lifting drive reduction box fixing seat second screw (51223); a lifting drive reduction box fixing seat reinforcing connecting screw (5134) is arranged at the rear side of the right end of the hinged arm plate (513) and corresponds to the position of the lifting drive reduction box fixing seat compensation screw hole (51224); the lifting drive reduction box fixing seat reinforcing connecting screw (5134) passes through the screw hole on the hinged arm plate (513) from the rear side of the right end of the hinged arm plate (513), is screwed into the lifting drive reduction box fixing seat compensation screw hole (51224), and is limited by a lifting drive reduction box fixing seat reinforcing connecting screw limiting nut (51341) screwed at the end of the lifting drive reduction box fixing seat reinforcing connecting screw (5134).At the right end of the articulated arm plate (513) and at the position corresponding to the articulated arm plate fender connecting screw hole (5163), an articulated arm plate fender connecting screw (5135) is arranged, which is screwed into the articulated arm plate fender connecting screw hole (5163) and is defined by an articulated arm plate fender connecting screw defining nut (51351) screwed at the end thereof; at the right end of the articulated arm plate (513) and at the position corresponding to the upper left of the lifting drive reduction box fixing seat reinforcing connecting screw (5134), a lifting tooth plate pivot half shaft (5136) is arranged, at one end of the lifting tooth plate (514) and at the position corresponding to the lifting tooth plate pivot half shaft (5136), a lifting tooth plate pivot bearing hole (5144) is opened, which is pivoted on the lifting tooth plate pivot half shaft (5136); the lifting tooth plate articulated arm (5143) is articulated with one end of the transition articulated plate (515) through the lifting tooth plate articulated arm pin shaft (51431).

5. The multifunctional automobile seat according to claim 3, wherein: A first side plate hinge pin (5137a) is arranged at the front end of the hinge arm plate (513) and hinged to the right side of the front end of the first side plate (41) of the seat framework (4). The front end bottom of the hinge arm plate (513) is folded rightward in a horizontal state to form a lifting device connecting cross beam fixing edge (5137b) and a seat rotating mechanism first fixing ear (5137c). The rear end bottom of the hinge arm plate (513) is folded forward in a horizontal state to form a seat rotating mechanism second fixing ear (5137d). The left end of the lifting device connecting cross beam (53) is fixed to the lifting device connecting cross beam fixing edge (5137b) by a lifting device connecting cross beam fixing screw (531). The seat rotating mechanism first fixing ear (5137c) is fixed to the seat rotating mechanism (3) by a seat rotating mechanism first fixing screw (5137e). The seat rotating mechanism second fixing ear (5137d) is also fixed to the seat rotating mechanism (3) by a pair of seat rotating mechanism second fixing screws (5137f).

6. The multifunctional automobile seat according to claim 3, wherein: A reinforcing tooth plate (518) is fixed to the right side of the rear end of the lifting tooth plate (514). A reinforcing tooth plate tooth (5181) is formed on the side of the reinforcing tooth plate (518) facing downward. The reinforcing tooth plate tooth (5181) is aligned with the teeth on the plate edge arc tooth segment (5141). The lifting tooth plate action gear (51211) engages with the plate edge arc tooth segment (5141) and the reinforcing tooth plate tooth (5181) at the same time.

7. The multifunctional automobile seat according to claim 5, wherein: The seat rotating mechanism (3) comprises a left-right moving slide rail mechanism fixed base plate (31), a fixed disc (32), a gear disc supporting basin (33), a gear disc (34), a gear disc pressing ring (35), a gear disc driving device (36), a driving disc (37), a supporting disc (38) and a seat framework support connecting disc (39). The left-right moving slide rail mechanism fixed base plate (31) is fixed with the left-right moving slide rail mechanism (2) at a position above the left-right moving slide rail mechanism (2). A supporting disc supporting seat (311) is formed in the middle of the upper side of the left-right moving slide rail mechanism fixed base plate (31). A gear disc supporting basin cavity (3111) is formed in the central area of the supporting disc supporting seat (311). The gear disc supporting basin cavity (3111) comprises a fixed disc fixing cavity (31111) formed in the surface of the gear disc supporting basin cavity (3111). A gear disc driving device accommodation hole (31112) is formed in the central position of the fixed disc fixing cavity (31111). The fixed disc (32) is arranged and fixed in the fixed disc fixing cavity (31111). A driving gear accommodation hole (321) is formed in the upper surface of the fixed disc (32) and extends to the lower surface. The gear disc supporting basin (33) is supported in the gear disc supporting basin cavity (3111). A gear disc seat cavity (331) is formed in the upper side of the gear disc supporting basin (33). A fixed disc fitting cavity (3311) is formed in the central position of the gear disc seat cavity (331). The fixed disc (32) is arranged in the fixed disc fitting cavity (3311). The gear disc (34) is supported in the gear disc seat cavity (331). A group of gear disc bosses (341) are formed in the upper side surface of the gear disc (34) and are equidistantly spaced around the circumference of the gear disc (34). A gear ring (3421) is formed in the cavity wall of the gear disc cavity (342) of the gear disc (34) and around the circumference of the cavity wall. The driving disc (37) is fixed with the gear disc supporting basin (33) and the gear disc pressing ring (35). A group of roller barriers (3511) extending towards the center of the gear disc pressing ring cavity (351) are formed in the gear disc pressing ring cavity (351) cavity wall of the gear disc pressing ring cavity (351) and are equidistantly spaced around the circumference of the gear disc pressing ring cavity (351). A support block (3513) is arranged on each side of each roller barrier (3511) in the group of roller barriers (3511). A roller (3512) is arranged on the side of each support block (3513) opposite to the roller barrier (3511) and is supported with the support block (3513) on the upper side surface of the gear disc (34). The support block (3513) and the roller (3512) are arranged corresponding to two adjacent gear disc bosses (341) in the group of gear disc bosses (341) and the roller barrier (3511).A certain disc (352) is arranged in the tooth disc pressing ring cavity (351), an output shaft matching hole (3521) is arranged on the certain disc (352) and at a position corresponding to the tooth disc driving device (36), a certain disc disc rim (3522) of the certain disc (352) is tangent to the roller (3512), and the certain disc (352) is fixed with the certain disc fixing disc (32) through certain disc fixing screws (3523) which are distributed at intervals and are arranged in certain disc fixing screw holes (322) of the certain disc fixing disc (32), a roller pressing disc (353) is further arranged at a position corresponding to an upper surface of the tooth disc pressing ring (35), the roller (3512) and an upper end surface of the support block (3513) are limited by the roller pressing disc (353), and the roller pressing disc (353) is fixed with the certain disc (352) through a group of roller pressing disc fixing screws (3524) which are arranged on the certain disc (352) and are distributed at intervals, the driving disc (37) is arranged at a position above the roller pressing disc (353), extends to above the driving disc (37) through the driving disc connecting screw (332) located on the tooth disc supporting basin (33), the tooth disc pressing ring screw hole (354) arranged on the tooth disc pressing ring (35) and the driving disc screw hole (371) of the driving disc (37), and is locked by the locking nut (3321) which is screwed on an upper end of the driving disc connecting screw (332), a central region of the driving disc (37) is a driving disc cavity (372), the support disc (38) is supported and fixed on the support disc supporting seat (311) through screws, a bearing ring supporting step ring (381) is arranged at a middle region of the support disc (38) and around four corners of the support disc (38), a bearing ring (38111) is arranged on a bearing ring supporting step ring upper surface (3811) of the bearing ring supporting step ring (381), a central region of the bearing ring supporting step ring (381) is a support disc cavity (382), four corners of a side of the seat framework supporting connecting disc (39) facing downward are rotatably buckled with four corners of a side of the left and right moving slide rail mechanism fixed bottom disc (31) facing upward, a support disc convex ring probe-in groove (391) is arranged at a position corresponding to the support disc convex ring (383) of the support disc (38) and facing downward of the seat framework supporting connecting disc (39), the support disc convex ring (383) probes into the support disc convex ring probe-in groove (391), a driving disc matching cavity (392) which has the same shape as the driving disc (37) is arranged at a central region of the seat framework supporting connecting disc (39), driving disc wings (373) of the driving disc (37) correspond to positions below driving disc wing cavities (3921) of the driving disc matching cavity (392), a driving disc pushing screw shaft fixing plate (3922) is arranged between each two adjacent driving disc wing cavities (3921), a driving disc pushing screw shaft (39221) is fixed on the driving disc pushing screw shaft fixing plate (3922) in a longitudinal state, when the driving disc (37) rotates,The edge part of the driving disc wing (373) supported on the driving disc push screw shaft (39221) pushes the driving disc push screw shaft (39221) to rotate the seat framework support connecting disc (39), the gear disc driving device (36) is fixed to the side of the gear disc supporting cavity (3111) facing downward, and is correspondingly positioned to the gear disc driving device positioning hole (31112). After passing through the driving gear positioning hole (321) upward, the gear disc driving device (36) enters the gear disc cavity (342) and forms a meshing pair with the gear ring (3421), and the top of the gear disc driving device (36) also penetrates into the output shaft matching hole (3521).

8. The multifunctional automobile seat according to claim 7, wherein: The left and right moving slide rail mechanism fixed chassis (31) shape is rectangular body and in the direction of the four corners of the upper side of the anti-expansion claw buckle plate screw (3121) fixed with a dynamic plate anti-expansion claw buckle plate (312), the dynamic plate anti-expansion claw buckle plate (312) towards the end of the support disc holder (311) constitutes a cavity downward dynamic plate anti-expansion claw buckle plate n-shaped cavity (3122); The shape of the seat framework support connecting disc (39) is rectangular body and in the direction of the four corners of the lower side fixed with a seat framework support connecting disc buckle plate (393), the position of the seat framework support connecting disc buckle plate (393) corresponding to the dynamic plate anti-expansion claw buckle plate (312), and the seat framework support connecting disc buckle plate (393) away from the end of the driving disc matching cavity (392) constitutes a cavity upward seat framework support connecting disc buckle plate u-shaped cavity (3931), seat framework support connecting disc buckle plate (393) and the dynamic plate anti-expansion claw buckle plate (312) are buckled with each other, and the seat framework support connecting disc (39) relative to the left and right moving slide rail mechanism fixed chassis (31) in the length range of the seat framework support connecting disc buckle plate (393) clockwise or counterclockwise rotation; In the direction of the upper side of the fixed disc fixed disc (32) and in the position corresponding to the interval of the roller pressure disc fixed screw (3524) constitutes a screw base support recess (323), the base of the roller pressure disc fixed screw (3524) is supported in the screw base support recess (323); On the roller pressure disc (353) and in the position corresponding to the interval of the group of roller pressure disc fixed screw (3524) is provided with roller pressure disc fixed screw through hole (3531), the group of roller pressure disc fixed screw (3524) is locked by the roller pressure disc fixed screw locking nut (35241) rotated and matched at the end of the group of roller pressure disc fixed screw (3524) after passing through the roller pressure disc fixed screw through hole (3531) from bottom to top; The central position of the fixed disc fixed disc (32) is provided with a fixed disc fixed disc wire hole (324), and the central position of the fixed disc (352) is provided with a fixed disc wire cavity (3525), and the driving disc cavity (372) is constituted by a driving disc wire cavity.

9. The multifunctional automobile seat according to claim 7, wherein: The tooth disc driving device (36) comprises a tooth disc driving motor (361), a tooth disc driving reduction gearbox (362), a tooth disc driving reduction gearbox fixing support (363) and a tooth disc driving gear (364). The tooth disc driving motor (361) is fixed with the tooth disc driving reduction gearbox (362) and is in transmission cooperation with the tooth disc driving reduction gearbox (362). The tooth disc driving reduction gearbox (362) is fixed with the tooth disc driving reduction gearbox fixing support (363) together with the tooth disc driving motor (361). The tooth disc driving reduction gearbox output shaft (3621) of the tooth disc driving reduction gearbox (362) faces upward and is provided with a tooth disc driving reduction gearbox output shaft gear (36211) on the tooth disc driving reduction gearbox output shaft (3621). The tooth disc driving reduction gearbox output shaft (3621) together with the tooth disc driving reduction gearbox output shaft gear (36211) extends to the top of the fixed disc fixing disc (32) via the tooth disc driving device accommodation hole (31112) and the driving gear accommodation hole (321) from bottom to top. The tooth disc driving reduction gearbox output shaft gear (36211) is in mesh with the tooth disc driving gear inner gear ring (3641) of the tooth disc driving gear (364). The upper end of the tooth disc driving reduction gearbox output shaft (3621) is rotatably connected with the output shaft accommodation hole (3521). The outer gear ring of the tooth disc driving gear (364) is in mesh with the gear ring (3421) of the tooth disc cavity (342). The tooth disc (34) is driven to rotate by the tooth disc driving gear (364). The tooth disc driving reduction gearbox fixing support (363) is fixed with the left and right moving slide rail mechanism fixing base plate (31) at a position corresponding to the side of the fixed disc fixing cavity (31111) facing downward.

10. The multifunctional automobile seat according to claim 9, wherein: A tooth disc driving reduction gearbox fixing support fixing screw hole (31113) is formed on the cavity bottom wall of the fixed disc fixing cavity (31111). A support fixing screw hole (325) is formed on the fixed disc fixing disc (32) at a position corresponding to the tooth disc driving reduction gearbox fixing support fixing screw hole (31113). The tooth disc driving reduction gearbox fixing support (363) is fixed with the fixed disc fixing disc (32) and the left and right moving slide rail mechanism fixing base plate (31) by the support fixing screw from bottom to top via the support screw hole (3631) formed on the tooth disc driving reduction gearbox fixing support (363), the tooth disc driving reduction gearbox fixing support fixing screw hole (31113) and the support fixing screw hole (325) in sequence. The tooth disc driving motor (361) is a motor with forward and reverse rotation function.

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