Anti-impact locking automobile seat rotating device and automobile seat thereof

Abstract

The utility model discloses an anti-impact locking automobile seat rotating device and an automobile seat thereof. The anti-impact locking automobile seat rotating device comprises a chassis, the rotating disc and the supporting disc correspond to each other up and down; the seat mounting disc is fixed with the rotary disc; a seat mounting disc driving mechanism comprises an output gear driving device, an output gear, a lower movable disc, a fixed disc, a fluted disc supporting basin, a fluted disc, a fluted disc pressing ring, an upper movable disc and a supporting disc driving disc, and is characterized in that a group of anti-backlash anti-impact devices are arranged on the surface of one upward side of the fluted disc at intervals; a group of fluted disc pressing ring supporting block partitions extend from the cavity wall of the fluted disc pressing ring cavity, the group of fluted disc pressing ring supporting block partitions are matched with the space between every two adjacent anti-backlash anti-impact devices in the group of anti-backlash anti-impact devices, and the disc edge of the upper movable disc and the inward sides of the group of anti-backlash anti-impact devices form a gapless anti-impact rotating pair. The anti-backlash locking device has the advantages that a good anti-backlash effect and an excellent locking function are achieved, and the increasingly stringent requirement for the anti-backlash effect of a high-precision and dynamic intelligent automobile is met.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to an anti-impact locking automotive seat rotation device, and also to an automotive seat. Background Technology

[0002] Eliminating gaps and ensuring reliable locking are crucial factors in the structural system of a car seat rotation mechanism. Regarding gap elimination: gaps can cause uneven rotation and play in the seat, resulting in abnormal noises or slight wobbling even after locking. For example, even after the seat is rotated to its locked position, a slight, uncomfortable, or even annoying wobbling or "clicking" sound may occur when gently pushed or moved slightly. Therefore, eliminating minute gaps between rotating components obviously improves stability and overall feel, enhances comfort, reduces or even eliminates wear, and reduces adjustment effort. Regarding locking reliability: if the locking mechanism of the rotating disc that drives the seat rotation is unreliable, the dynamic stability of the car seat rotation will be severely affected. For example, during vehicle acceleration, emergency braking, cornering, or collisions, the seat may rotate on its own, causing the driver or passenger to lose balance; safety is reduced, for example, by exacerbating displacement during a collision. Especially in an accident, a seat that lacks reliable locking may rotate, causing the seat belt to lose its restraint (such as the shoulder strap slipping off), thus aggravating the injury; increased wear between mechanical parts may cause abnormal noises or vibrations, etc.

[0003] Based on the above factors, it is of positive significance to explore and strive to design an automotive seat rotation device that can achieve both good backlash elimination and ideal locking (i.e., "locking") reliability. Utility Model Content

[0004] The primary objective of this invention is to provide a car seat rotation device that combines excellent gap elimination with superior locking function, thereby meeting the increasingly stringent requirements for gap elimination in high-precision and dynamic intelligent vehicles, and ideally locking the seat in the adjusted angle position without causing it to rotate on its own under conditions such as sudden acceleration, emergency braking and turning, or collision impacts, thus ensuring safety.

[0005] Another objective of this invention is to provide an impact-resistant locking mechanism for car seats that optimizes space utilization, saves radial dimensions, and is free from interference from other components while also providing concealment and self-protection.

[0006] Another objective of this invention is to provide a car seat that fully and accurately reflects the technical effects of an impact-resistant locking car seat rotation device.

[0007] To fulfill the primary objective of this utility model, the technical solution provided is as follows: an anti-impact locking car seat rotation device, comprising a chassis having a chassis cavity; a turntable and a support plate that are vertically corresponding to and fixed to each other, the turntable and support plate forming a rotating pair with the bottom wall of the chassis cavity at positions corresponding to the chassis cavity; a seat mounting plate fixed to the turntable at a position above the turntable; and a seat mounting plate driving mechanism. The system includes an output gear drive device, an output gear, a lower moving plate, a fixed plate, a gear plate support, a gear plate, a gear plate pressure ring, an upper moving plate, and a support plate drive plate. The output gear drive device is fixed to the lower moving plate and forms an internal meshing gear transmission pair with the output gear, as well as being connected to the upper moving plate. The output gear forms a meshing pair with the gear plate. The lower moving plate is located below the upper moving plate and is fixed to it. The fixed plate is fixed to the chassis via spaced-apart fixed plate brackets. The central area of ​​the fixed plate forms a gear plate support cavity. The toothed disc is positioned on the fixed plate at a location corresponding to the toothed disc support cavity. The toothed disc has a toothed disc cavity. A toothed disc pressure ring is fitted onto the toothed disc and fixed to the toothed disc support and the fixed plate. The upper moving disc is positioned within the toothed disc pressure ring cavity and fixed to the support disc drive disc at a position below it. The support disc drive disc is fixed to the support disc via a set of spaced-apart drive disc feet. The feature is that on the upward-facing surface of the toothed disc and around the toothed disc… A set of backlash-eliminating and shock-resistant devices are spaced apart along the circumference of the disc. On the cavity wall of the toothed disc pressure ring cavity and extending toward the center of the toothed disc pressure ring cavity, there is a set of toothed disc pressure ring support blocks, the number of which is equal to the number of the set of backlash-eliminating and shock-resistant devices. The space between the set of toothed disc pressure ring support blocks and each pair of adjacent backlash-eliminating and shock-resistant devices in the set of backlash-eliminating and shock-resistant devices is matched. The upper moving disc edge and the inward-facing side of the set of backlash-eliminating and shock-resistant devices form a backlash-free shock-resistant rotating pair.

[0008] To fulfill another objective of this utility model, the technical solution provided by this utility model is as follows: an inner gear ring is formed on the cavity wall of the gear disk cavity and around the circumference of the cavity wall. The output gear enters the gear disk cavity and meshes with the inner gear ring, thereby forming an internal meshing relationship between the output gear and the gear disk.

[0009] In a specific embodiment of this utility model, a set of worm gear reducer mounting screw holes are provided on the lower moving plate at intervals corresponding to the position of the output gear drive device; a worm gear shaft transmission connection hole is provided on the upper moving plate at the same position corresponding to the output gear drive device; the output gear drive device includes a motor, a worm gear reducer, and a worm gear reducer mounting base, the motor is horizontally connected to the worm gear reducer, and the worm gear reducer connects the motor and the worm gear reducer. The fixed base is fixed, and the worm gear reducer fixed base is located below the lower moving plate and is fixed to the set of worm gear reducer base fixing screw holes by a set of spaced worm gear reducer base fixing screws. The worm wheel shaft of the worm gear reducer extends upward to the outside of the worm gear reducer housing, and the upper end of the worm wheel shaft is connected to the worm wheel shaft transmission connection hole. A worm wheel shaft gear is formed on the shaft body in the middle of the worm wheel shaft and around the worm wheel shaft. The worm wheel shaft gear and the output gear form an internal meshing transmission pair.

[0010] In another specific embodiment of this utility model, an output gear bushing support hole is formed on the lower moving plate at a position corresponding to the output gear and the worm gear shaft. An output gear rotating support sleeve extends from the lower part of the output gear and rotates with the output gear bushing support hole. A worm gear shaft gear insertion hole is formed at the center of the output gear and passes through the output gear rotating support sleeve. An output gear internal gear ring is formed longitudinally on the hole wall of the worm gear shaft gear insertion hole and around the hole wall. The worm gear shaft gear and the output gear internal gear ring form a meshing transmission pair in the worm gear shaft gear insertion hole.

[0011] In another specific embodiment of this utility model, lower moving plate screw fixing holes are provided at intervals on the lower moving plate and around its circumference, and lower moving plate fixing screws are provided in the lower moving plate screw fixing holes; upper moving plate screw fixing holes are provided on the upper moving plate at positions corresponding to the lower moving plate screw fixing holes, and the lower moving plate is fixed to the upper moving plate at a position below the upper moving plate by the lower moving plate fixing screws at positions corresponding to the upper moving plate screw fixing holes. A lower moving plate wire passing hole is provided on the lower moving plate body, penetrating the thickness direction of the lower moving plate body, and a similar upper moving plate wire passing hole is provided on the upper moving plate at a position corresponding to the lower moving plate wire passing hole, penetrating the thickness direction of the upper moving plate body.

[0012] In another specific embodiment of this utility model, mounting holes for mounting brackets are provided in pairs around the circumference of the mounting plate and at positions corresponding to the mounting bracket. Mounting bracket screws are fitted into these mounting holes. A pair of mounting bracket screw holes are provided at the end of the mounting bracket facing the mounting plate. The mounting bracket screws pass through the mounting bracket screw holes and the mounting bracket screw holes sequentially from top to bottom to fix the mounting plate to the end of the mounting bracket facing the mounting plate. The middle of the mounting bracket is recessed downwards to form a support cavity for the mounting plate. A base mounting connection hole is provided at the end of the mounting bracket away from the mounting plate. A chassis fixing screw hole is formed on the chassis at a position corresponding to the chassis fixing connection hole. A chassis fixing screw is fitted into the chassis fixing screw hole, and the chassis fixing screw fixes the fixed plate fixing frame to the chassis at the positions corresponding to the chassis fixing screw hole and the chassis fixing connection hole. A bearing cavity is formed on the cavity wall of the chassis cavity and around the circumference of the cavity wall. A support bearing is provided in the bearing cavity. A turntable bearing support mating surface is formed on the outer wall of the turntable in the circumferential direction. A support plate bearing support mating surface is formed on the outer wall of the support plate and around the circumference of the support plate. At the bottom of the turntable bearing support mating surface and around the bottom... A turntable fixing edge is formed around the turntable cavity. Turntable fixing holes are spaced apart on this fixing edge and around its circumference. Support plate fixing holes, corresponding to the turntable fixing edge fixing holes, are spaced apart on the upper surface of the support plate and around its circumference. The turntable fixing edge fixing holes and support plate fixing holes are fixed together by screws. A set of seat mounting plate fixing connectors extends outward from the upper edge of the turntable, each with a seat mounting plate fixing screw hole. A seat mounting plate is positioned on the seat mounting plate corresponding to the seat mounting plate fixing screw holes. The seat mounting plate is fixed to a set of seat mounting plate fixing connectors by screw holes corresponding to the seat mounting plate fixing screw holes. Seat mounting screw holes are spaced apart on the seat mounting plate and around the seat mounting plate cavity. A set of drive plate free-standing supports are fixed on the support plate drive plate and spaced apart around the circumference of the support plate drive plate. The end of the drive plate free-standing support away from the support plate drive plate is fixedly connected to the support plate support foot fixing screw holes on the support plate, so that the turntable bearing support mating surface and the support plate bearing support mating surface are in a state of vertical correspondence with each other and together form a rotating pair with the support bearing.

[0013] In another specific embodiment of this utility model, a set of screw tail support cavities are formed at the edge of the upward-facing side surface of the lower moving plate and at intervals around the circumference of the lower moving plate; a set of drive plate connecting screw holes are provided at intervals around the circumference of the upper moving plate body on the upper moving plate, the set of drive plate connecting screw holes corresponding to the set of screw tail support cavities, and a drive plate connecting screw is provided at each position corresponding to the set of drive plate connecting screw holes; a set of support plate drive plate screw holes are provided at intervals on the support plate drive plate and at positions corresponding to the drive plate connecting screw holes; the drive plate connecting screw passes through the drive plate connecting screw holes and the support plate drive plate screw holes sequentially from the lower part of the upper moving plate upward and is locked by a locking nut screwed on the upper end of the drive plate connecting screw, and the tail of the drive plate connecting screw is supported on the set of screw tail support cavities.

[0014] In a further specific embodiment of this utility model, a toothed disc retaining lug extends at intervals along the circumference of the toothed disc retaining lug at its edge. A toothed disc retaining lug screw hole is provided on each retaining lug, and this screw hole corresponds to and coincides with the screw hole on the fixed disc. A toothed disc retaining ring retaining lug extends along the circumference of the toothed disc retaining ring and at a position corresponding to the toothed disc retaining lug. A toothed disc retaining ring retaining lug is provided on each retaining ring retaining lug. There is a toothed disc retaining ring fixing lug screw, which is screwed into the toothed disc support retaining lug screw hole and the fixed disc screw hole from top to bottom and extends to the bottom of the fixed disc and is locked by the toothed disc retaining ring fixing lug screw locking nut screwed on the lower end of the toothed disc retaining ring fixing lug screw; a downwardly recessed toothed disc receiving cavity is formed on the inner side of the toothed disc support and around the toothed disc support; the toothed disc is set on the side of the toothed disc support facing upward at the position corresponding to the toothed disc receiving cavity; the central area of ​​the toothed disc support forms the toothed disc support center cavity.

[0015] In a further specific embodiment of this utility model, each of the set of backlash elimination and impact protection devices includes a toothed disc boss, a pair of rollers, and a pair of support blocks. The toothed disc boss is directly formed on the upward-facing side of the toothed disc, and the pair of rollers and the pair of support blocks are placed on the upward-facing side of the toothed disc. One of the rollers is longitudinally positioned between one side of the toothed disc boss and one of the longitudinally positioned support blocks, while the other roller is longitudinally positioned between the other side of the toothed disc boss and the other longitudinally positioned support block. The space between any two adjacent backlash elimination and impact protection devices in the set is configured as follows: The support block spacer is fitted into the cavity, and the space between each pair of adjacent support block spacers of the toothed disc pressure ring is configured as an anti-impact device limiting cavity. The anti-impact device limiting cavity defines the backlash-free anti-impact device, and the shape of the anti-impact device limiting cavity is adapted to the shape formed by the toothed disc boss, a pair of rollers, and a pair of support blocks arranged in an arc on the upward-facing side of the toothed disc. After the upper moving disc is placed in the toothed disc pressure ring cavity of the toothed disc pressure ring, the edge of the upper moving disc and the side of the pair of rollers facing the toothed disc pressure ring cavity form a backlash-free anti-impact rotating pair. The pair of support blocks are made of rubber or nylon.

[0016] To further fulfill the purpose of this utility model, the technical solution provided by this utility model is: a car seat having the aforementioned anti-impact locking car seat rotation device.

[0017] The technical solution provided by this utility model has a set of backlash elimination and anti-impact devices arranged on the upward-facing side surface of the toothed disc in the structural system of the seat mounting disc drive mechanism, and the toothed disc pressure ring cavity is fitted outside the set of backlash elimination and anti-impact devices. Therefore, the upper moving disc can rotate freely during the rotation of the upper moving disc. When the upper moving disc is in the adjusted position, the backlash elimination and anti-impact devices can lock the edge of the upper moving disc. This helps to achieve both good backlash elimination effect and excellent locking function, thus meeting the increasingly stringent requirements of high-precision and dynamic intelligent vehicles for backlash elimination effect. It also ideally locks the car seat in the adjusted angle position and prevents abnormal autonomous rotation when the vehicle encounters situations such as sudden acceleration, deceleration, emergency braking, turning, or collision impact, thereby fully ensuring safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0019] Figure 2 for Figure 1The exploded three-dimensional view of the seat mounting plate drive mechanism is shown.

[0020] Figure 3 for Figure 1 The diagram shows a support bearing located in the bearing cavity of the chassis cavity.

[0021] Figure 4 for Figure 2 The diagram shows the structure of the lower moving plate, toothed plate, toothed plate pressure ring, upper moving plate, and the toothed plate pressure ring in conjunction with the backlash elimination and anti-impact device.

[0022] Figure 5 This is a schematic diagram of the completed assembly of this utility model. Detailed Implementation

[0023] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0024] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on... Figure 1 The current position is taken as a baseline and therefore should not be construed as a specific limitation on the technical solution provided by this utility model. Furthermore, the term "barrier" as used below refers to a combination of separation and obstruction.

[0025] Please see Figure 1 and Figure 2 This shows a chassis 1 having a chassis cavity 11, that is, the space in the central region of the chassis 1 is configured as the chassis cavity 11, which is composed of... Figure 1As shown, a set (i.e., "two pairs") of chassis mounting ears 13 are formed on the chassis 1. The set of chassis mounting ears 13 has four (but is not limited to four) and is spaced 90° apart from each other around the circumference of the chassis 1. In use, they are fixed to a car seat slide rail or similar device by screws at positions corresponding to the chassis mounting ear holes 131 on the chassis mounting ears 13. A turntable 2 and a support plate 3 are shown, forming a vertically corresponding relationship and fixed to each other. The turntable 2 and support plate 3 form a rotating pair with the bottom wall of the chassis cavity 11 at positions corresponding to the aforementioned chassis cavity 11. A seat mounting plate 4 is shown, positioned above the aforementioned turntable 2 and... The turntable 2 is fixed, and in use, the car seat is fixed to the seat mounting plate 4. A seat mounting plate drive mechanism 5 is shown, which includes an output gear drive device 51, an output gear 52, a lower moving plate 53, a fixed plate 54, a gear plate support 55, a gear plate 56, a gear plate pressure ring 57, an upper moving plate 58, and a support plate drive plate 59. The output gear drive device 51 is fixed to the lower moving plate 53 and forms an internal meshing gear transmission pair with the output gear 52, and is also connected to the upper moving plate 58. The output gear 52 forms a meshing pair with the gear plate 56. The lower moving plate 53 is located below the upper moving plate 58 and is fixed to the upper moving plate 58. The fixed plate 54 is provided by a spaced distribution of... Figure 1 The fixed plate bracket 541 shown is fixed to the aforementioned base plate 1. The central area of ​​the fixed plate 54 forms a toothed disc support cavity. The toothed disc support 55 is placed on the fixed plate 54 at a position corresponding to the toothed disc support cavity. The toothed disc 56 is disposed on the toothed disc support 55, and the toothed disc 56 forms a toothed disc cavity 561. The toothed disc pressure ring 57 is sleeved on the toothed disc 56. Specifically, the toothed disc pressure ring 57 is placed on the upper surface of the toothed disc 56 and fixed to the toothed disc support 55 and the fixed plate 54. The upper moving disc 58 is disposed in the toothed disc pressure ring cavity 571 of the toothed disc pressure ring 57 and is fixed to the support disc drive disc 59 at a position corresponding to the lower position of the support disc drive disc 59. The support disc drive disc 59 is fixed to the aforementioned support plate 3 through a set of spaced drive disc free-standing support feet 592.

[0026] The key technical points of the present invention are as follows: a set of backlash elimination and anti-impact devices 562 are provided at equal intervals on the upward-facing side surface of the aforementioned toothed disc 56 and around the circumference of the toothed disc 56. A set of toothed disc pressure ring support blocks 572 are provided at equal intervals on the cavity wall of the toothed disc pressure ring cavity 571 of the aforementioned toothed disc pressure ring 57 and towards the center of the toothed disc pressure ring cavity 571. The number of such blocks is equal to the number of the set of backlash elimination and anti-impact devices 562. The space between the set of toothed disc pressure ring support blocks 572 and each pair of adjacent backlash elimination and anti-impact devices 562 in the set of backlash elimination and anti-impact devices 562 is matched. The upper moving disc edge 581 of the aforementioned upper moving disc 58 and the inward-facing side of the aforementioned set of backlash elimination and anti-impact devices 562 form a backlash-free anti-impact rotating pair.

[0027] As can be seen from the above definition of a set of backlash-free anti-impact rotating pairs, a set of backlash-eliminating and anti-impact devices 562 can not only eliminate backlash in the upper moving plate 58, but also effectively lock the upper moving plate 58 and demonstrate excellent locking effect. This will be described in detail below.

[0028] Depend on Figure 2 As shown, an inner toothed ring 5611 is formed on the cavity wall of the aforementioned toothed disc cavity 561 and in the circumferential direction surrounding the cavity wall of the toothed disc cavity 561. The aforementioned output gear 52 enters the aforementioned toothed disc cavity 561 and meshes with the inner toothed ring 5611, so that the output gear 52 and the aforementioned toothed disc 56 form an internal meshing relationship.

[0029] Since the output gear 52 extends into the toothed disc cavity 561 and meshes with the toothed ring 5611 inside the toothed disc cavity, it is highly advantageous for optimizing space utilization, reducing (i.e. saving) radial dimensions, and avoiding interference from other components while also exhibiting concealment and self-protection. However, if the aforementioned toothed ring 5611 inside the toothed disc cavity is replaced with an external toothed ring formed on the edge of the toothed disc 56, then the meshing mode between the output gear 52 and the external toothed ring is an external meshing relationship, thus lacking the aforementioned advantages of the structure of this application. Furthermore, if the rotational speed of the upper moving disc 58 is changed according to the requirements of the automotive seat manufacturer, this utility model can meet the requirement of changing the rotational speed of the upper moving disc 58 simply by adaptively changing or reasonably modifying the outer diameter and the number of teeth of the output gear 52.

[0030] Depend on Figure 2As shown, a set of worm gear reducer mounting screw holes 531 are provided on the lower moving plate 53 at intervals corresponding to the positions of the aforementioned output gear drive device 51; a worm gear shaft transmission connection hole 582 is provided on the aforementioned upper moving plate 58 at positions corresponding to the positions of the aforementioned output gear drive device 51; the aforementioned output gear drive device 51 includes a motor 511, a worm gear reducer 512, and a worm gear reducer mounting base 513. The motor 511 is horizontally connected to the worm gear reducer 512 and is fixed to the worm gear reducer mounting base 513 by the worm gear reducer 512 together with the motor 511. The worm gear reducer mounting base 513 is located below the aforementioned lower moving plate 53 and is fixed to the aforementioned set of worm gear reducer mounting base screw holes 531 by a set of spaced-apart worm gear reducer mounting base screws 5131. The worm gear shaft 5121 of the worm gear reducer 512 extends upward outside the worm gear reducer housing, and the upper end of the worm gear shaft 5121 is connected to the aforementioned worm gear shaft transmission connection hole 582. A worm gear shaft gear 51211 is formed on the shaft body in the middle of the worm gear shaft 5121 and around the worm gear shaft 5121. The worm gear shaft gear 51211 and the aforementioned output gear 52 form an internal meshing transmission pair.

[0031] In this embodiment, the aforementioned motor is a servo motor with forward and reverse rotation functions, but a stepper motor can also be used.

[0032] See you later Figure 2 An output gear bushing support hole 532 is provided on the aforementioned lower moving plate 53 at a position corresponding to the aforementioned output gear 52 and worm gear shaft 5121. An output gear rotating support sleeve 521 extends from the lower part of the aforementioned output gear 52 and is rotatably engaged with the output gear bushing support hole 532. A worm gear shaft gear insertion hole 522 is formed at the center of the output gear 52. The worm gear shaft gear insertion hole 522 passes through the aforementioned output gear rotating support sleeve 521. An output gear internal gear ring 5221 is formed longitudinally on the hole wall of the worm gear shaft gear insertion hole 522 and around the hole wall. The aforementioned worm gear 51211 and the aforementioned output gear internal gear ring 5221 form a meshing transmission pair in the aforementioned worm gear shaft gear insertion hole 522, that is, an internal meshing transmission pair is formed.

[0033] Lower moving plate 53 is provided with lower moving plate screw fixing holes 533 at intervals around its circumference, and lower moving plate fixing screws 5331 are provided in the lower moving plate screw fixing holes 533. Upper moving plate 58 is provided with upper moving plate screw fixing holes 583 at positions corresponding to the lower moving plate screw fixing holes 533. The lower moving plate 53 is fixed to the upper moving plate 58 at a position below the upper moving plate 58 by the lower moving plate fixing screws 5331 at positions corresponding to the upper moving plate screw fixing holes 583. A lower moving plate wire passing hole 534 is provided on the lower moving plate body of the lower moving plate 53, penetrating the thickness direction of the lower moving plate body of the lower moving plate 53. Similarly, an upper moving plate wire passing hole 584 is provided on the upper moving plate 58 at a position corresponding to the lower moving plate wire passing hole 534, penetrating the thickness direction of the upper moving plate body of the upper moving plate 58. The circuit, which is electrically connected to the vehicle power supply, passes through the electrical controller installed on the vehicle seat and then through the support disk drive disk wire hole 591, the upper drive disk wire hole 584 and the lower drive disk wire hole 534 located in the center of the support disk drive disk 59, and is electrically connected to the aforementioned motor 511.

[0034] See you later Figure 2 And combined Figure 1 On the aforementioned fixed plate 54, around the circumference of the fixed plate 54 and at positions corresponding to the aforementioned fixed plate fixing bracket 541, fixed plate fixing bracket screw holes 542 are provided in pairs at intervals. Fixed plate fixing bracket screws 5421 are fitted into the fixed plate fixing bracket screw holes 542. Figure 1 The aforementioned plate fixing bracket 541 shown has a pair of plate fixing bracket screw holes 5411 at the end facing the plate 54, i.e., the inward end. The aforementioned plate fixing bracket screws 5421 pass through the plate fixing bracket screw holes 542 and 5411 sequentially from top to bottom, thus fixing the plate 54 to the end of the plate fixing bracket 541 facing the plate 54. Figure 1As shown, the center of the plate fixing bracket 541 is recessed downward to form a support plate support cavity 5412. A base plate fixing connection hole 5413 is provided at the end of the plate fixing bracket 541 away from the plate 54, i.e., the outward end. A base plate fixing screw hole 12 is provided on the aforementioned base plate 1 at the position corresponding to the base plate fixing connection hole 5413. A base plate fixing screw 121 is provided in the base plate fixing screw hole 12, and the plate fixing bracket 541 is fixed to the base plate 1 by the base plate fixing screw 12 at the position corresponding to the base plate fixing screw hole 12 and the base plate fixing connection hole 5413. On the cavity wall of the aforementioned base plate cavity 11, and around the circumference of the cavity wall... A bearing cavity 111 is formed in the direction of the bearing 2, and a support bearing 1111 is disposed in the bearing cavity 111. A turntable bearing support mating surface 22 is formed on the outer wall of the turntable 2 in the circumferential direction. A support bearing support mating surface 31 is formed on the outer wall of the support disk 3 and around the circumference of the support disk 3. A turntable fixing edge 23 is formed at the bottom of the turntable bearing support mating surface 22 and around the bottom in the direction of the turntable cavity 21 of the turntable 2. A turntable fixing edge fixing hole 231 is provided on the turntable fixing edge 23 and spaced around the circumference of the turntable fixing edge 23. On the upper surface of the support disk 3 and around the circumference of the support disk 3, there is a bearing cavity 111, and a support bearing 1111 is disposed in the bearing cavity 1111. A support bearing 1111 is disposed on the upper surface of the support disk 3 and around the circumference of the support disk 3. Support plate fixing holes 33 are spaced apart in the direction of the turntable fixing edge fixing holes 231, and the turntable fixing edge fixing holes 231 and the support plate fixing holes 33 are fixed to each other by screws. A set of seat mounting plate fixing connectors 24 extends outward from the upper edge of the turntable 2 at intervals, and each of these seat mounting plate fixing connectors 24 has a seat mounting plate fixing screw hole 241. Seat mounting plate screw holes 42 are provided on the seat mounting plate 4 at positions corresponding to the seat mounting plate fixing screw holes 241, and seat mounting plate screws 421 are used to connect the seat mounting plate 4 to the set of seat mounting plate fixing connectors 231 at positions corresponding to the seat mounting plate fixing screw holes 241. The chair mounting plate is fixed with a connecting seat 24. Seat mounting plate 4 is provided with seat fixing screw holes 43 spaced around the seat mounting plate cavity 41 of the mounting plate 4. A set of the aforementioned drive plate free-standing supports 592 are fixed on the aforementioned support plate drive plate 59 and spaced around the circumference of the support plate drive plate 59. The end of the drive plate free-standing supports 592 away from the support plate drive plate 59 is fixedly connected to the support plate support foot fixing screw holes 32 opened on the support plate 3, so that the aforementioned turntable bearing support mating surface 22 and the aforementioned support plate bearing support mating surface 31 are in a state of corresponding vertically to each other and together with the aforementioned support bearing 1111 to form a rotating pair.

[0035] In this utility model, the aforementioned set of plate fixing brackets 541 comprises four pieces, and these four plate fixing brackets 541 are distributed at equal intervals. However, the number of plate fixing brackets 541 in this set is obviously not limited to the four shown in the figure. Any increase or decrease in the number of plate fixing brackets 541 in this set should be considered as not departing from the technical scope disclosed in this utility model. Furthermore, by Figure 1 and Figure 2 Although the number of three drive disc free-standing supports 592, which are generally Z-shaped or zigzag-shaped, is not limited to this number, as specifically described in the description of a set of fixed disc brackets 541.

[0036] Depend on Figure 2 As shown, a set of drive disc free-standing support feet 592 face one end of the support disc drive disc 59. Figure 2 The upper end of each of the indicated positions is fixed to the support disk drive disk 59 by screws through screw holes 5921 corresponding to a pair of drive disk free-standing supports 592. The end of the drive disk free-standing support 592 facing the aforementioned support disk 3 is... Figure 2 The lower end of the position shown corresponds to a drive disk levitation support foot fixing screw hole 5922 on the drive disk levitation support foot 592 and a support disk support foot fixing screw hole 32 on the aforementioned support disk 3. According to professional knowledge, the support disk support foot fixing screw hole 32 can actually be regarded as the support disk fixing hole 33, only they are different reference numerals because they need to be fixed by the drive disk levitation support foot 592.

[0037] Please see Figure 3 And combined Figure 1 As a non-limiting but relatively preferred approach, the structure of the aforementioned support bearing 1111 is composed of... Figure 3 As detailed, it consists of three bearing units 11111 and three arc-shaped limiting strips 11112. The three bearing units 11111 are arranged circumferentially around the bearing cavity 111 and spaced 120° apart with respect to the center of the chassis cavity 11. Adjacent bearing units 11111 are defined by the aforementioned arc-shaped limiting strips 1112. Figure 3 As shown, each bearing unit 11111 includes a horizontal roller 11113 located in the center and a pair (two) of longitudinal rollers 11114 located on both sides of the horizontal roller 11113. The aforementioned turntable bearing support mating surface 22 and the upper part of the longitudinal and horizontal rollers 11114 and 11113 facing the chassis cavity 11 form a rolling pair (also called a "rotational pair"). The support plate bearing support mating surface 31 and the lower part of the longitudinal and horizontal rollers 11114 and 11113 facing the chassis cavity 11 form a rolling pair (also called a "rotational pair"). As can be seen from the foregoing description, the entire turntable 2 and support plate 3 rotate around the support bearing 1111.

[0038] Please see Figure 2 and Figure 4 A set of screw tail support cavities 535 are formed at intervals along the circumference of the aforementioned lower moving plate 53 on the edge of its upward-facing surface. A set of drive plate connecting screw holes 585 are formed at intervals along the circumference of the upper moving plate body on the aforementioned upper moving plate 58. These drive plate connecting screw holes 585 correspond to the aforementioned set of screw tail support cavities 535, and a drive plate connecting screw 58 is provided at each position corresponding to the set of drive plate connecting screw holes 585. 51. On the aforementioned support disk drive disk 59, a set of support disk drive disk screw holes 593 are provided at intervals corresponding to the drive disk connecting screw holes 585. The drive disk connecting screw 5851 passes through the drive disk connecting screw holes 585 and the support disk drive disk screw holes 593 sequentially from the lower part of the upper drive disk 58 and is locked by the locking nut 58511 screwed on the upper end of the drive disk connecting screw 5851. The tail of the drive disk connecting screw 5851 is supported on the aforementioned set of screw tail support cavities 535.

[0039] Depend on Figure 2 and Figure 4 As shown, a recessed platform 536 is formed on the upper surface of the aforementioned lower moving plate 53, in the region located or corresponding to the aforementioned output gear 52. The height difference between the surface of the recessed platform 536 and the top surface (i.e., the upper surface) of the lower moving plate 53 is exactly the thickness of the output gear 52. The aforementioned recessed platform 536 is essentially a region where the thickness of the lower moving plate 53 decreases.

[0040] Gear plate holder fixing ears 551 extend at intervals along the circumference of the aforementioned gear plate holder 55 at its edge. Gear plate holder fixing ears 551 have screw holes 5511 that correspond to and coincide with the screw holes on the aforementioned fixed plate 54. Gear plate pressure ring 57 has fixing ears 573 extending along its circumference and corresponding to the aforementioned gear plate holder fixing ears 551. Gear plate pressure ring fixing ears 573 are fitted with gear plate pressure ring fixing ear screws 5731. The toothed disc retaining ring fixing lug screw 5731 is screwed into the toothed disc tray retaining lug screw hole 5511 and the aforementioned fixed disc screw hole from top to bottom, extending to the bottom of the fixed disc 54 and locked by the toothed disc retaining ring fixing lug screw locking nut 57311 screwed onto the lower end of the toothed disc retaining ring fixing lug screw 5731; a downwardly recessed toothed disc receiving cavity 552 is formed on the inner side of the aforementioned toothed disc tray 55 and around the toothed disc tray 55; the aforementioned toothed disc 56 is set on the upward-facing side of the toothed disc tray 55 at the position corresponding to the toothed disc receiving cavity 552; the central area of ​​the toothed disc tray 55 is formed as the toothed disc tray central cavity 553.

[0041] See you later Figure 2 and Figure 4Each of the aforementioned set of backlash-eliminating and impact-resistant devices 562 includes a toothed disc boss 5621, a pair of rollers 5622, and a pair of support blocks 5623. The toothed disc boss 5621 is directly formed on the upward-facing side of the aforementioned toothed disc 56. The pair of rollers 5622 and the pair of support blocks 5623 are placed on the upward-facing side of the toothed disc 56. One of the rollers 5622 is located longitudinally between one side of the toothed disc boss 5621 and one of the longitudinally positioned support blocks 5623, while the other roller is located longitudinally between the other side of the toothed disc boss 5621 and the other longitudinally positioned support block 5623. The space between each pair of two adjacent backlash-eliminating and impact-resistant devices in the set of backlash-eliminating and impact-resistant devices 562 is formed as a support block partition cavity 563. The aforementioned toothed disc pressure ring support block partition 572 The space between the support block spacer 572 and the space between each pair of adjacent toothed disc pressure ring support block spacers 573 is configured as an anti-impact device limiting cavity 5721. The anti-impact device limiting cavity 5721 limits the aforementioned backlash-free anti-impact device 562. The shape of the anti-impact device limiting cavity 5721 is adapted to the shape formed by the aforementioned toothed disc boss 5621, a pair of rollers 5622 and a pair of support blocks 5623 arranged in an arc on the side of the aforementioned toothed disc 56 facing upward. After the aforementioned upper moving disc 58 is disposed in the toothed disc pressure ring cavity 571 of the aforementioned toothed disc pressure ring 57, the aforementioned upper moving disc edge 581 of the upper moving disc 58 and the aforementioned pair of rollers 5622 on the side facing the aforementioned toothed disc pressure ring cavity 571 form a backlash-free anti-impact rotating pair. In this embodiment, the aforementioned pair of support blocks 5623 are made of rubber, but support blocks 5623 made of nylon or other equivalent materials can also be used.

[0042] The applicant should clarify that although the number of a set of gap-eliminating and impact-resistant devices 562 exemplified in this embodiment is nine (also referred to as "nine sets"), the number of corresponding gear disc pressure ring support block partitions 572 and gap-eliminating and impact-resistant device limiting cavities 5721 formed between each pair of adjacent gear disc pressure ring support block partitions 572 are also nine. However, this number is not limited. For example, by increasing or decreasing the size of the corresponding components, the number of gap-eliminating and impact-resistant devices 562 can be reduced or increased accordingly.

[0043] Please see Figure 5 ,Should Figure 5 It indicated Figure 1 The situation after assembly is completed.

[0044] This utility model also provides a car seat having the aforementioned anti-impact locking car seat rotation device.

[0045] Applicant combined Figures 1 to 5The working principle of this utility model is described as follows: In use, the chassis 1 is fixed to the car seat slide rail via the chassis fixing lug holes 131 on the aforementioned chassis fixing lugs 13 (four, i.e., two pairs), or fixed to the car floor or to a bracket (also called a "frame") set on the car floor via the chassis fixing lugs 13 and chassis mounting bolt holes 14 opened at other positions on the chassis 1; the car seat is fixed to the seat mounting plate 4. Furthermore, based on the above description, it can be determined without a doubt that the fixed plate 54, gear plate support 55, gear plate 56, and gear plate pressure ring 57 of the structural system of chassis 1 and seat mounting plate drive mechanism 5 are static, i.e., do not rotate, while the output gear drive device 51, upper moving plate 58, lower moving plate 53, output gear 52, and support plate drive plate 59 of the structural system of turntable 2, support plate 3, seat mounting plate 4, and seat mounting plate drive mechanism 5 are rotating. The motor 511 is powered by the vehicle's power supply (electrically connected via wiring). The controller for controlling the output gear drive device 51 of the seat mounting plate drive mechanism 5 is located in a reasonable position on the car seat. It is called a reasonable position because different vehicles have different choices of installation position. For example, some are located on the left side or side of the seat, some are located on the front side of the seat, and so on.

[0046] When the passenger needs to adjust the seat angle, they simply operate the corresponding button on the aforementioned controller, such as a touch button or similar operating element such as a knob or push switch, to activate the motor 511. The motor 511 drives the worm in the worm gear box 512, which in turn drives the worm wheel. The worm wheel shaft 5121 drives the upper moving plate 58, and simultaneously, the worm wheel shaft gear 51211 on the worm wheel shaft 5121 drives the output gear 52, causing the output gear 52 to move around the gear ring 5611 on the toothed plate cavity wall of the toothed plate cavity 561 of the toothed plate 56. During the aforementioned process, the upper and lower moving plates 58 and 53, as well as the support plate drive plate 59, move together. During the movement and rotation of the support plate drive plate 59, a set of drive plate lifting feet 592 drives the aforementioned support plate 3 to rotate. Since the support plate 3 and the turntable 2 are fixedly connected, the support plate 3 and the turntable 2 rotate together in a state where the support plate bearing support mating surface 31 and the turntable bearing support mating surface 22 form a rotating pair with the aforementioned support bearing 1111. Furthermore, since the seat mounting plate 4 is fixed to the seat mounting plate fixing screw hole 241 of the seat mounting plate fixing connection seat 24 of the turntable 2 via seat mounting plate screws 421, the turntable 2 drives the seat mounting plate 4 to rotate when it rotates. Also, since the car seat is fixed to the seat mounting plate 4, the seat mounting plate 4, along with the car seat fixed to it, rotates. The direction of rotation of the car seat, whether clockwise or counterclockwise, depends on the forward or reverse rotation of the aforementioned motor 511. When the seat mounting plate 4 drives the car seat to rotate to the angle desired by the occupant, the operation of the aforementioned controller is released, thereby keeping the car seat at the desired angle position.

[0047] During the rotation of the upper moving disk 58, the upper moving disk edge 581 pushes the roller in the rotational direction of one of the pair of rollers 5622 in the structure of the backlash elimination and shockproof device 562. This roller in the rotational direction squeezes or compresses the support block in the rotational direction of one of the pair of support blocks 5623, allowing the upper moving disk 58 sufficient rotational clearance (or "room") to rotate. When the upper moving disk 58 stops rotating, the roller in the rotational direction previously pushed by the upper moving disk 58 is ejected by the support block in the rotational direction, allowing the aforementioned rotational direction to... The upward-facing rollers are reliably positioned between the upper moving plate rim 581 and the cavity wall of the toothed disc pressure ring cavity 571 on the side facing the upper moving plate rim 581, thereby reliably locking the upper moving plate 58 and eliminating clearance. Simultaneously, due to the action of the toothed disc boss 5621 within the structure of the clearance-eliminating and shock-resistant device 562 directly formed on the upward-facing side of the toothed disc 56, and the combined action of the pair of rollers 5622 and the pair of support blocks 5623, the toothed disc 56 is held in the locked position, ultimately achieving the purpose of locking and eliminating clearance in the car seat. In the locked state, there is not even the slightest wobble. In summary, the upper moving plate 58 can rotate freely during rotation because its edge 581 contacts the roller 5622. In the non-rotating state, the support block 5623 is released, and the roller 5622 reliably locks (positions) the edge 581 of the upper moving plate. When the vehicle encounters severe bumps, impacts, emergency braking, emergency turns, or even collisions, the car seat will generate torque. When the torque is transmitted to the upper moving plate 58, it will not rotate because the upper moving plate 58 is locked by the roller 5622. The same applies to the gear plate 56, thus ensuring that the car seat does not rotate, fully demonstrating safety. Under the aforementioned factors, since the upper moving plate 58 will not rotate, it can effectively protect the worm gear shaft 5121 of the output gear drive device 51's structural system, and ultimately protect the worm gear box 512 and the motor 511. Furthermore, the applicant's tests show that the rollers 5622 of a set of backlash elimination and shock-absorbing devices 562, i.e., the nine pairs of rollers 5622 of nine sets or nine units of backlash elimination and shock-absorbing devices 562, can generate a clamping force greater than 3000 Newtons (3000N) on the upper moving plate 58 through their coordinated action. The applicant should note that if the aforementioned toothed plate boss 5621 and the upward-facing surface of the toothed plate 56 are configured as separate structures, then they should be considered equivalent technical means.

[0048] 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 accurately realizes the technical effects described by the applicant in the above-mentioned technical effects column.

Claims

1. An anti-impact locking car seat rotation device, comprising a chassis (1) having a chassis cavity (11); a turntable (2) and a support plate (3) that are vertically corresponding to each other and fixed to each other, the turntable (2) and the support plate (3) forming a rotating pair with the bottom wall of the chassis cavity (11) at a position corresponding to the chassis cavity (11); a seat mounting plate (4) fixed to the turntable (2) at a position above the turntable (2); a seat mounting plate drive The seat mounting plate drive mechanism (5) includes an output gear drive device (51), an output gear (52), a lower moving plate (53), a fixed plate (54), a gear plate support (55), a gear plate (56), a gear plate pressure ring (57), an upper moving plate (58), and a support plate drive plate (59). The output gear drive device (51) is fixed to the lower moving plate (53) and forms an internal meshing gear transmission pair with the output gear (52), and is also connected to the upper moving plate (58). 2) The lower moving plate (53) is positioned below the upper moving plate (58) and fixed to it. The fixed plate (54) is fixed to the base plate (1) by spaced fixed plate fixing brackets (541). The central area of ​​the fixed plate (54) forms a toothed plate support cavity. The toothed plate support (55) is placed on the fixed plate (54) at a position corresponding to the toothed plate support cavity. The toothed plate (56) is disposed on the toothed plate support (55), and the toothed plate (56) constitutes a meshing pair with the toothed plate (56). There is a toothed disc cavity (561), a toothed disc pressure ring (57) is sleeved on the toothed disc (56) and fixed to the toothed disc support (55) and the fixed disc (54). The upper moving disc (58) is disposed in the toothed disc pressure ring cavity (571) of the toothed disc pressure ring (57) and is fixed to the support disc drive disc (59) at a position corresponding to below the support disc drive disc (59). The support disc drive disc (59) is fixed to the support disc (3) by a set of spaced drive disc free-standing supports (592). The feature is that: A set of backlash-eliminating and anti-impact devices (562) are provided on the upward-facing side surface of the toothed disc (56) and at intervals around the circumference of the toothed disc (56). On the cavity wall of the toothed disc pressure ring cavity (571) of the toothed disc pressure ring (57) and extending towards the center of the toothed disc pressure ring cavity (571), there is a set of toothed disc pressure ring support block partitions (572) in number equal to the set of backlash-eliminating and anti-impact devices (562). The space between the set of toothed disc pressure ring support block partitions (572) and each pair of adjacent backlash-eliminating and anti-impact devices (562) in the set of backlash-eliminating and anti-impact devices (562) is matched. The upper moving disc edge (581) of the upper moving disc (58) and the inward-facing side of the set of backlash-eliminating and anti-impact devices (562) form a backlash-free anti-impact rotating pair.

2. The anti-shock locking automobile seat rotating device according to claim 1, characterized in that: A toothed ring (5611) is formed on the cavity wall of the toothed disc cavity (561) and around the cavity wall in the circumferential direction. The output gear (52) enters the toothed disc cavity (561) and meshes with the toothed ring (5611) to form an internal meshing relationship between the output gear (52) and the toothed disc (56).

3. The anti-shock locking automobile seat rotating device according to claim 1, characterized in that: A set of worm gear reducer mounting screw holes (531) are provided on the lower moving plate (53) at intervals corresponding to the position of the output gear drive device (51); a worm gear shaft transmission connection hole (582) is provided on the upper moving plate (58) at the same position corresponding to the position of the output gear drive device (51); the output gear drive device (51) includes a motor (511), a worm gear reducer (512) and a worm gear reducer mounting base (513). The motor (511) is horizontally connected to the worm gear reducer (512) and is fixed to the worm gear reducer mounting base (513) by the worm gear reducer (512) together with the motor (511). The worm gear reducer mounting base (513) is located below the lower moving plate (53) and is fixed to the set of worm gear reducer mounting base screw holes (531) by a set of spaced worm gear reducer mounting base screws (5131). The worm gear shaft (5121) of the worm gear reducer (512) extends upward to the outside of the worm gear reducer housing, and the upper end of the worm gear shaft (5121) is connected to the worm gear shaft transmission connection hole (582). A worm gear shaft gear (51211) is formed on the shaft body in the middle of the worm gear shaft (5121) and around the worm gear shaft (5121). The worm gear shaft gear (51211) and the output gear (52) form an internal meshing transmission pair.

4. The anti-shock locking automobile seat rotating device according to claim 3, characterized in that: An output gear bushing support hole (532) is provided on the lower moving plate (53) at a position corresponding to the output gear (52) and the worm gear shaft (5121). An output gear rotating support sleeve (521) extends from the lower part of the output gear (52) and is rotatably engaged with the output gear bushing support hole (532). A worm gear shaft probing hole (522) is formed at the center of the output gear (52) and passes through the output gear rotating support sleeve (521). An output gear internal gear ring (5221) is formed longitudinally on the hole wall of the worm gear shaft probing hole (522) and around the hole wall. The worm gear shaft gear (51211) and the output gear internal gear ring (5221) form a meshing transmission pair in the worm gear shaft probing hole (522).

5. The anti-shock locking automobile seat rotating device according to claim 1, characterized in that: Lower moving plate (53) has screw fixing holes (533) spaced apart on its circumference, and lower moving plate fixing screws (5331) are provided in the screw fixing holes (533). Upper moving plate (58) has screw fixing holes (583) at positions corresponding to the lower moving plate screw fixing holes (533). The lower moving plate (53) is fixed below the upper moving plate (58) by the lower moving plate screw fixing holes (583). The fixed screw (5331) is fixed to the upper moving plate (58) at the position corresponding to the upper moving plate screw fixing hole (583), and a lower moving plate wire hole (534) is opened on the lower moving plate body of the lower moving plate (53) through the thickness direction of the lower moving plate body. Similarly, an upper moving plate wire hole (584) is opened on the upper moving plate (58) at the position corresponding to the lower moving plate wire hole (534) through the thickness direction of the upper moving plate body.

6. The anti-shock locking automobile seat rotating device according to claim 1, characterized in that: On the fixed plate (54), around the circumference of the fixed plate (54) and at positions corresponding to the fixed plate fixing frame (541), there are fixed plate fixing frame screw holes (542) spaced apart in pairs. Fixed plate fixing frame screws (5421) are provided in the fixed plate fixing frame screw holes (542). A pair of fixed plate fixing frame screw holes (5411) are provided at the end of the fixed plate fixing frame (54) facing the fixed plate (54). The fixed plate fixing frame screws (5421) pass through the fixed plate fixing frame screw holes (542) and the fixed plate fixing frame screw holes (5411) from top to bottom, thereby connecting the fixed plate (54) and the fixed plate fixing frame (541). The plate fixing bracket (541) is fixed at one end facing the plate (54). The middle part of the plate fixing bracket (541) is recessed downward to form a support plate support cavity (5412). A base fixing connection hole (5413) is opened at the end of the plate fixing bracket (541) away from the plate (54). A base fixing screw hole (12) is opened on the base (1) at the position corresponding to the base fixing connection hole (5413). A base fixing screw (121) is provided in the base fixing screw hole (12). The plate fixing bracket (541) is fixed by the base fixing screw (121) at the position corresponding to the base fixing screw hole (12) and the base fixing connection hole (5413). Fixed to the chassis (1); a bearing cavity (111) is formed on the cavity wall of the chassis cavity (11) of the chassis (1) and around the circumference of the cavity wall, and a support bearing (1111) is provided in the bearing cavity (111); a turntable bearing support mating surface (22) is formed on the outer wall of the turntable (2) in the circumference direction; a support plate bearing support mating surface (31) is formed on the outer wall of the support plate (3) and around the circumference of the support plate (3); a turntable fixing edge (23) is formed at the bottom of the turntable bearing support mating surface (22) and around the bottom towards the turntable cavity (21) of the turntable (2), in The turntable fixing edge (23) is provided with turntable fixing edge fixing holes (231) spaced apart in the circumferential direction around the turntable fixing edge (23). On the upper surface of the support plate (3) and in the circumferential direction around the support plate (3), support plate fixing holes (33) are provided at positions corresponding to the turntable fixing edge fixing holes (231). The turntable fixing edge fixing holes (231) and the support plate fixing holes (33) are fixed to each other by screws. A set of seat mounting plate fixing connecting seats (24) extends outward from the upper edge of the turntable (2). Each of the set of seat mounting plate fixing connecting seats (24) has a seat mounting plate fixing screw hole (241).Seat mounting plate screw holes (42) are provided on the seat mounting plate (4) at positions corresponding to the seat mounting plate fixing screw holes (241). The seat mounting plate (4) is fixed to a set of seat mounting plate fixing connectors (24) by seat mounting plate screws (421) at positions corresponding to the seat mounting plate fixing screw holes (241). Seat fixing screw holes (43) are provided on the seat mounting plate (4) and around the seat mounting plate cavity (41) of the seat mounting plate (4) at intervals. A set of drive disk free-standing supports (592) are fixedly fixed on the moving disk (59) and at intervals around the circumference of the support disk drive disk (59). The end of each drive disk free-standing support (592) away from the support disk drive disk (59) is fixedly connected to the support disk support fixing screw hole (32) on the support disk (3), so that the turntable bearing support mating surface (22) and the support disk bearing support mating surface (31) are in a vertically corresponding state to each other and together form a rotating pair with the support bearing (1111).

7. The anti-shock locking automobile seat rotating device according to claim 1, characterized in that: A set of screw tail support cavities (535) is formed at the edge of the upward-facing surface of the lower moving plate (53) and at intervals around the circumference of the lower moving plate (53); a set of drive plate connecting screw holes (585) is provided on the upper moving plate (58) and at intervals around the circumference of the upper moving plate body of the upper moving plate (58). The set of drive plate connecting screw holes (585) corresponds to the set of screw tail support cavities (535), and a drive plate connecting screw (5851) is provided at each position corresponding to the set of drive plate connecting screw holes (585). On the support disk drive disk (59), a set of support disk drive disk screw holes (593) are provided at intervals corresponding to the drive disk connecting screw holes (585). The drive disk connecting screw (5851) passes through the drive disk connecting screw holes (585) and the support disk drive disk screw holes (593) sequentially from the lower part of the upper drive disk (58) and is locked by the locking nut (58511) screwed on the upper end of the drive disk connecting screw (5851). The tail of the drive disk connecting screw (5851) is supported on the set of screw tail support cavities (535).

8. The anti-shock locking automobile seat rotating device according to claim 1, characterized in that: Gear plate holder fixing ears (551) extend at intervals along the edge of the gear plate holder (55) and around its circumference. Gear plate holder fixing ears (551) have screw holes (5511) that correspond to and coincide with the screw holes on the fixed plate (54). Gear plate pressure ring (57) has fixing ears (573) extending around its circumference and corresponding to the fixing ears (551). Gear plate pressure ring fixing ears (573) are fitted with screws (5731). The toothed disc retaining ring fixing lug screw (5731) is screwed into the toothed disc tray fixing lug screw hole (5511) and the fixed disc screw hole from top to bottom, extending to the bottom of the fixed disc (54) and locked by the toothed disc retaining ring fixing lug screw locking nut (57311) screwed on the lower end of the toothed disc retaining ring fixing lug screw (5731); a downwardly recessed toothed disc receiving cavity (552) is formed on the inner side of the toothed disc tray (55) and around the toothed disc tray (55); the toothed disc (56) is set on the side of the toothed disc tray (55) facing upward at the position corresponding to the toothed disc receiving cavity (552); the central area of ​​the toothed disc tray (55) is formed as the toothed disc center cavity (553).

9. The anti-shock locking automobile seat rotating device according to claim 1, characterized in that: Each of the set of backlash elimination and impact protection devices (562) includes a toothed disc boss (5621), a pair of rollers (5622), and a pair of support blocks (5623). The toothed disc boss (5621) is directly formed on the upward-facing side of the toothed disc (56). The pair of rollers (5622) and the pair of support blocks (5623) are placed on the upward-facing side of the toothed disc (56). One of the rollers (5622) is located longitudinally between one side of the toothed disc boss (5621) and one of the longitudinally positioned support blocks (5623), while the other roller is located longitudinally between the other side of the toothed disc boss (5621) and the other longitudinally positioned support block (5623). The space between each pair of two adjacent backlash elimination and impact protection devices in the set of backlash elimination and impact protection devices (562) forms a support block partition cavity (563). The toothed disc pressure ring support block spacer (572) is fitted into the support block spacer embedding cavity (563), and the space between each pair of adjacent toothed disc pressure ring support block spacers (572) constitutes an anti-impact device limiting cavity (5721). The anti-impact device limiting cavity (5721) limits the backlash-eliminating anti-impact device (562), and the cavity shape of the anti-impact device limiting cavity (5721) is consistent with that of the toothed disc boss (5621), a pair of rollers (5622), and a... The support blocks (5623) are arranged in an arc shape on the upward side of the toothed disc (56); after the upper moving disc (58) is placed in the toothed disc pressure ring cavity (571) of the toothed disc pressure ring (57), the upper moving disc edge (581) of the upper moving disc (58) and the pair of rollers (5622) on the side facing the toothed disc pressure ring cavity (571) form a backlash-free impact-resistant rotating pair; the pair of support blocks (5623) are made of rubber or nylon.

10. An automotive seat characterized by A car seat rotation device with anti-impact locking as described in claim 1.

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