Turntable structure of automobile seat

Abstract

An automobile seat rotating disc structure comprises a rotating disc assembly, the rotating disc assembly comprises a chassis, a fixed disc fixing disc, a fluted disc supporting basin, a fluted disc, a fluted disc pressing ring, a fluted disc driving device, a driving disc, a supporting disc and a seat bearing connecting disc, the chassis is not rotatable, and the fixed disc fixing disc is arranged in the center of the upward side of the chassis; the fluted disc supporting basin is supported on the upward side of the base plate, a fluted disc seat cavity is formed on the upward side of the fluted disc supporting basin, the fluted disc is supported in the fluted disc seat cavity, a gear ring is formed on the cavity wall of the fluted disc cavity, the driving disc and the fluted disc supporting basin are fixed together, and the seat supporting connecting disc is supported on the upward side of the base plate. The downward side of the seat supporting connecting disc is matched with the upward side of the chassis, and the fluted disc driving device is fixed to the center of the downward side of the chassis and extends to the position above the chassis to form a meshing pair with the gear ring. The structure is simple, the stability of an electrical system is guaranteed, and the expected precision control requirement and the good experience requirement of a passenger are met.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a car seat turntable structure. Background Technology

[0002] As consumers increasingly demand more versatility and seating flexibility in vehicles, the swivel function of car seats has become an indispensable factor in meeting user needs. Especially in SUVs, MPVs / commercial vehicles, Buick GL8, Li Auto L9, and new energy vehicles, users' demands for "one car for multiple uses" such as cargo carrying, camping, family travel, business, and interaction are driving car seat developers, designers, and manufacturers to continuously innovate car seat structures.

[0003] In summary, the positive benefits of swivel car seats, especially third-row seats, include at least the following: easier entry and exit; optimized space flexibility; enhanced comfort; family and child-friendly features such as easier feeding of infants and toddlers; business and multi-functional uses, such as rotating the front seats to create a face-to-face space with the rear seats, accommodating passenger conversation and interaction, business negotiations, and even entertainment such as playing chess or cards; safety assistance, and so on.

[0004] As is known in the industry, the structure of a car seat turntable is invariably equipped with a gear drive mechanism consisting of a gear drive motor, a gear drive gearbox, etc., to drive the gear drive mechanism to rotate. However, since the gear drive mechanism in the prior art rotates with the rotating parts, for example, when it is set on the seat support connecting plate (which serves as the upper rotating plate for setting the car seat), the gear drive mechanism will rotate with the rapid rotation of the seat support connecting plate. Therefore, this type of gear drive mechanism, which rotates with the seat support connecting plate, reveals the following shortcomings in actual use: It increases complexity because during operation, it's impossible to avoid cable tangling or twisting (interlocking) caused by frequent rotation of components such as wires and sensor wires; it negatively impacts the stability of the electrical system because the gear drive motor rotating with the seat support connecting plate is difficult or even impossible to connect to the power supply and controller via fixed wiring, easily leading to poor contact, signal delays, or even interruptions; it affects precision control, requiring relatively stringent precision control because the gear drive motor's vibration or micro-motions, caused by rotating with the seat support connecting plate, superimpose their own vibrations or micro-motions onto the car seat's movement, negatively affecting the seat's stability during rotation; and it is insufficient to guarantee safety and durability to a certain extent because the gear drive motor generates centrifugal force during rotation. Although the rotation speed is relatively slow and the centrifugal force is relatively small, long-term frequent rotation can cause fatigue damage. In view of the foregoing, reasonable improvements are necessary, and the technical solution described below arose in this context. Utility Model Content

[0005] The objective of this invention is to provide a car seat turntable structure that helps avoid complexity, ensures the stability of the electrical system, meets the desired precision control requirements, and facilitates a good experience for passengers.

[0006] The present invention achieves its objective as follows: a car seat turntable structure includes a turntable assembly comprising a chassis, a fixed plate, a geared disc support, a geared disc, a geared disc pressure ring, a geared disc drive device, a drive disc, a support disc, and a seat support connecting disc. The chassis is non-rotating and, in use, is fixed to a car seat slide rail, a car floor, or a chassis mounting base mounted on the car floor. The fixed plate is positioned at the center of the upward-facing side of the chassis. The geared disc support is supported on the upward-facing side of the chassis, and a geared disc seat cavity is formed on this upward-facing side. A [missing information - likely a component or element] is formed at the center of the geared disc seat cavity. A fixed plate and a fixed plate mating cavity are provided, the fixed plate and the fixed plate protruding into the fixed plate and fixed plate mating cavity. The gear plate is supported in the gear plate seat cavity. A gear ring is formed on the cavity wall of the gear plate cavity and around the cavity wall in the circumferential direction. The drive plate together with the gear plate pressure ring is fixed to the gear plate support. The seat support connecting plate is supported on the side of the chassis facing upward. The side of the seat support connecting plate facing downward rotatably engages with the side of the chassis facing upward and forms a rotating pair with the side of the support plate facing upward. The characteristic is that the gear plate drive device is fixed at the central position of the side of the chassis facing downward and extends above the chassis to form a meshing pair with the gear ring.

[0007] In a specific embodiment of this utility model, a support plate bracket protruding from the upper surface of the chassis is formed in the middle of the side of the chassis facing upward. A downwardly recessed gear plate support cavity is formed in the central region of the support plate bracket. The gear plate support cavity forms a fixed plate fixing cavity recessed in the surface of the gear plate support cavity. A gear plate drive device clearance hole is formed in the center of the fixed plate fixing cavity. A drive gear clearance hole is formed on the fixed plate, corresponding to the position of the gear plate drive device, extending from the upper surface of the fixed plate to the lower surface. The toothed disc support is supported within the toothed disc support cavity; a set of toothed disc bosses are formed at equal intervals on the upward-facing surface of the toothed disc and around its circumference; a set of roller spacers extending towards the center of the toothed disc pressure ring cavity are formed at equal intervals on the cavity wall of the toothed disc pressure ring cavity and around its perimeter; a support block is provided on both sides of each roller spacer in the set of roller spacers; a roller is provided on the side of each support block opposite to the roller spacer, and the support block, roller, and roller spacer are supported on the upward-facing surface of the toothed disc along with the support block; the support block, roller, and roller spacer correspond to the space between two adjacent toothed disc bosses in the set of toothed disc bosses; a fixed disc is provided within the toothed disc pressure ring cavity; an output shaft mating hole is provided on the fixed disc at a position corresponding to the toothed disc drive device; the edge of the fixed disc is tangent to the roller; and the fixed disc is fixed by spaced-distributed fixed disc fixing screws and fixed disc fixing screws provided on the fixed disc. The hole is fixed, and a roller pressure plate is also provided on the upper surface corresponding to the toothed disc 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 roller pressure plate fixing screws arranged on the fixed plate and distributed at intervals. The drive plate is located above the roller pressure plate. The drive plate extends from bottom to top through the toothed disc pressure ring screw hole on the toothed disc pressure ring and the drive plate screw hole on the drive plate, and is locked by the 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. The support plate supports and is fixed to the upward-facing side of the support plate support by screws. A bearing ring support step ring is formed in the middle area of ​​the support plate and around the support plate. A bearing ring is provided on the upper surface of the bearing ring support step ring. The central area of ​​the bearing ring support step ring is the support plate cavity.

[0008] In another specific embodiment of this utility model, the chassis has a rectangular body structure, and the seat support connecting plate also has a rectangular body structure. The four corners of the seat support connecting plate facing downward are rotatably engaged with the four corners of the chassis facing upward.

[0009] In another specific embodiment of this utility model, a support plate convex ring is formed along the upper edge of the support plate and around its circumference. A support plate convex ring insertion groove is formed on the seat support connecting plate facing downwards and corresponding to the support plate convex ring of the support plate. The support plate convex ring inserts into the groove. A drive plate mating cavity with the same shape as the drive plate is formed in the central region of the seat support connecting plate. The drive plate wing of the drive plate corresponds slightly below the drive plate wing cavity of the drive plate mating cavity. A certain distance exists between two adjacent drive plate wing cavities. A drive disc push screw shaft fixing plate is formed, and 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, thereby causing the seat support connecting disc to rotate. The gear drive device corresponds to the gear drive device clearance hole. After passing through the drive gear clearance hole upward, the gear drive device enters the gear 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.

[0010] In another specific embodiment of this utility model, a movable disc anti-rollover claw fastening plate is fixed to each of the four corners of the chassis facing upward by a movable disc anti-rollover claw fastening plate screw. The end of the movable disc anti-rollover claw fastening plate facing the support plate bracket forms an n-shaped cavity with the cavity opening facing downward. A seat support connecting plate fastening plate is fixed to each of the four corners of the seat support connecting plate facing downward. The position of the seat support connecting plate fastening plate corresponds to the movable disc anti-rollover claw fastening plate, and the end of the seat support connecting plate fastening plate away from the drive disc mating cavity forms a U-shaped cavity with the cavity opening facing upward. The seat support connecting plate fastening plate and the movable disc anti-rollover claw fastening plate fasten each other, and the seat support connecting plate rotates clockwise or counterclockwise relative to the chassis within the length range of the seat support connecting plate fastening plate.

[0011] In another specific embodiment of this utility model, a screw base support cavity is formed on the side of the fixed plate facing upward and at a position corresponding to the roller pressure plate fixing screw, and the base of the roller pressure plate fixing screw is supported in the screw base support cavity.

[0012] In a further specific embodiment of this utility model, roller pressure plate is provided with roller pressure plate fixing screw through holes at intervals corresponding to the positions of the set of roller pressure plate fixing screws. 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. The drive plate cavity is configured as a drive plate wire passage cavity.

[0013] In a further 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 the gear drive reduction gearbox and engages in transmission with it. 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, is engaged in transmission with the gear drive reduction gear. The gearbox output 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 gearbox output shaft gear meshes with the inner gear ring of the gear drive gear. The upper end of the gearbox output shaft rotatably engages with the output shaft mating hole. The outer gear ring of the gear drive gear meshes with the gear ring of the gearbox cavity. The gear drive gear drives the gearbox to rotate. The gearbox fixing bracket is fixed to the chassis at a position corresponding to the downward-facing side of the fixed plate cavity.

[0014] In a further 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 fixing cavity, and a bracket fixing screw hole is provided on the fixed plate fixing plate at a position corresponding to the fixing screw hole for the gear drive gearbox fixing bracket. The gear drive gearbox fixing bracket is fixed to the chassis together with the fixed plate fixing plate by the bracket fixing screw passing 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 from bottom to top.

[0015] In yet another specific embodiment of this utility model, the gear drive motor is a motor with forward and reverse rotation functions.

[0016] The technical effect of the technical solution provided by this utility model is as follows: by overcoming the technical bias in the prior art, the toothed drive device with the toothed drive motor is set on the side of the non-rotating chassis facing downward, thus avoiding structural complexity. This not only helps to ensure the stability of the electrical system and meet the expected precision control requirements, but also facilitates meeting the requirements of a good experience for passengers. Attached Figure Description

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

[0018] In the diagram: 1. Turntable assembly; 11. Chassis; 111. Support plate bracket; 1111. Gear plate support cavity; 11111. Fixed plate fixing cavity; 11112. Gear plate drive device clearance hole; 11113. Gear plate drive reduction gearbox fixing bracket fixing screw hole; 112. Moving plate anti-tipping claw fastening plate; 1121. Moving plate anti-tipping claw fastening plate screw; 11211. 1122. Moving disc anti-tipping claw snap-fit ​​plate screw locking nut; 12. Moving disc anti-tipping claw snap-fit ​​plate n-shaped cavity; 13. Fixed disc fixing plate; 14. Drive gear clearance hole; 15. Fixed disc fixing screw hole; 16. Screw base support cavity; 17. Fixed disc fixing plate wire passage hole; 18. Bracket fixing screw hole; 19. Gear disc support plate; 10. Gear disc seat cavity; 11. Fixed disc fixing plate mating cavity; 12. Drive disc connecting screw; 13. Locking nut; 14. Gear disc; 15. Gear disc pressure ring; 16. Gear disc; 17. Gear disc boss; 18. Gear disc cavity; 19. Gear ring; 10. Gear disc pressure ring; 11. Gear disc; 11. Fixed disc fixing plate n-shaped cavity; 12. Fixed disc fixing plate; 13. Drive disc fixing plate; 14. Gear disc fixing plate screw locking nut; 15. Gear disc fixing nut screw locking nut screw; 16. Gear disc fixing nut screw locking nut screw; 17. Gear disc fixing nut screw locking nut screw; 18. Gear disc fixing nut screw locking nut screw; 19. Gear disc fixing nut screw locking nut screw; 10. Gear disc fixing nut screw locking nut screw; 11. Gear disc fixing nut screw locking ... locking nut screw; 11. Gear disc fixing nut screw locking nut screw locking nut screw locking nut screw; 11. Gear disc fixing nut screw locking nut screw locking nut screw locking nut screw locking nut screw locking nut screw locking nut screw locking nut screw 1511. Gear disc pressure ring cavity; 1512. Roller spacer; 1513. Roller; 1514. Support block; 152. Fixed disc; 1525. Output shaft mating hole; 1526. Fixed disc rim; 1527. Fixed disc fixing screw; 1528. Roller pressure plate fixing screw; 15241. Roller pressure plate fixing screw locking nut; 1529. Fixed disc wire passage cavity; 153. Roller pressure plate; 1531. Roller pressure plate fixing screw through hole; 1532. Roller pressure plate wire passage cavity; 154. Gear disc pressure ring screw hole; 16. Gear disc drive device; 161. Gear disc drive motor; 162. Gear disc drive reduction gearbox; 1621. Gear disc drive reduction gearbox output shaft; 16211. Gear disc drive reduction gearbox output shaft gear; 163. Gearbox drive gearbox mounting bracket, 1631. Bracket screw hole, 164. Gearbox drive gear, 1641. Gearbox drive gear internal gear ring, 17. Drive disc, 171. Drive disc screw hole, 172. Drive disc cavity, 173. Drive disc wing, 18. Support disc, 181. Bearing ring support stepped ring, 1811. Upper surface of bearing ring support stepped ring, 18111. Bearing ring, 182. Support disc cavity, 183. Support disc convex ring, 19. Seat support connecting disc, 191. Support disc convex ring insertion groove, 192. Drive disc mating cavity, 1921. Drive disc wing cavity, 1922. Drive disc push screw shaft fixing plate, 19221. Drive disc push screw shaft, 193. Seat support connecting disc fastening plate, 1931. Seat support connecting disc fastening plate U-shaped cavity. Detailed Implementation

[0019] 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.

[0020] 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 the baseline, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0021] Please see Figure 1The aforementioned turntable assembly 1 includes a chassis 11, a fixed plate 12, a gear plate support 13, a gear plate 14, a gear plate pressure ring 15, a gear plate drive device 16, a drive plate 17, a support plate 18, and a seat support connecting plate 19. The chassis 11 does not rotate, meaning it is static. In use, depending on actual needs, the chassis 11 can be fixedly connected to the upper slide rail (also called the "moving slide rail") of the car seat slide rail system, directly fixed to the car's floor, or even fixed to a chassis mounting bracket installed on the car's floor. Therefore, this utility model does not require a single limitation on the specific fixing method of the chassis 11. A support plate holder 111 protrudes from the upper surface of the chassis 11 at the center of the upward-facing side. A downward-recessed gear plate holder cavity 1111 is formed in the central region of the support plate holder 1111. A fixed plate fixing cavity 11111 is recessed into the surface of the gear plate holder cavity 11111. A gear plate drive device clearance hole 11112 is formed at the center of the fixed plate fixing cavity 11111. The fixed plate fixing plate 12 is disposed and fixed within the fixed plate fixing cavity 11111. A drive gear clearance hole 121, extending from the upper surface to the lower surface of the fixed plate fixing plate 12, is formed on the fixed plate fixing plate 12 at a position corresponding to the gear plate drive device 16. The toothed disc support 13 is supported within the aforementioned toothed disc support cavity 1111. A toothed disc seat cavity 131 is formed on the upward-facing side of the toothed disc support 13. A fixed disc mating cavity 1311 is formed at the center of the toothed disc seat cavity 131. The aforementioned fixed disc 12 extends into the fixed disc mating cavity 1311. The toothed disc 14 is supported within the toothed disc seat cavity 131. A set of toothed disc bosses 141 are formed on the upward-facing surface of the toothed disc 14 and at equal intervals around the circumference of the toothed disc 14. A toothed ring 1421 is formed on the cavity wall of the toothed disc cavity 142 of the toothed disc 14 and around the circumference of the cavity wall. The drive disc 17, together with the toothed disc pressure ring 15, is fixed to the aforementioned toothed disc support 13. A toothed ring 1421 is formed on the cavity wall of the toothed disc pressure ring cavity 151 of the toothed disc pressure ring 15 and around the circumference of the cavity wall. The perimeter of the toothed disc pressure ring cavity is formed by a set of roller spacers 1511 extending toward the center of the toothed disc pressure ring cavity 151 with equal spacing. A support block 1513 is provided on both sides of each roller spacer 1511. On the side of each support block 1513 facing away from the roller spacer 1511, a roller 1512 is provided, supporting the upward-facing surface of the toothed disc 14. The support blocks 1513, rollers 1512, and roller spacers 1511 correspond to the space between two adjacent toothed disc bosses 141 in the set of toothed disc bosses 141. A fixed plate 152 is provided within the aforementioned toothed disc pressure ring cavity 151. An output shaft mating hole 1521 is formed on the fixed plate 152 at a position corresponding to the toothed disc drive device 16.The fixed plate 152 has its rim 1522 tangent to the roller 1512, and is fixed to the fixed plate 152 by spaced-apart fixed plate fixing screws 1523 and fixed plate fixing screw holes 122 on the fixed plate 12. A roller pressure plate 153 is also provided on the upper surface corresponding to the toothed disc pressure ring 15, which limits the upper end face of the roller 1512 and the support block 1513. The roller pressure plate 153 is fixed to the fixed plate 152 by a set of spaced-apart roller pressure plate fixing screws 1524 arranged on the fixed plate 152. The drive disc 17 passes from bottom to top through the drive disc connecting screw 132 located on the toothed disc tray 13 at a position above the roller pressure plate 153. The toothed disc retaining ring screw hole 154 on the toothed disc retaining ring 15 and the drive disc screw hole 171 on the drive disc 17 extend above the drive disc 17 and are locked by a locking nut 1321 screwed onto the upper end of the drive disc connecting screw 132. The central region of the drive disc 17 forms the drive disc cavity 172. The support disc 18 is supported and fixed to the aforementioned support disc bracket 111 by screws. A bearing ring support step ring 181 is formed in the central region of the support disc 18 and around the perimeter of the support disc 18. A bearing ring 18111 is provided on the upper surface 1811 of the bearing ring support step ring 181. The central region of the bearing ring support step ring 181 is the support disc cavity 182. The four corners of the seat support connecting plate 19 facing downwards are rotatably engaged with the four corners of the aforementioned chassis 11 facing upwards. A support plate protrusion groove 191 is formed on the seat support connecting plate 19 facing downwards, corresponding to the support plate protrusion 183 of the support plate 18. The support plate protrusion 183 extends into the support plate protrusion groove 191. A drive plate mating cavity 192 with the same shape as the aforementioned drive plate 17 is formed in the central region of the seat support connecting plate 19. The drive plate wing 173 of the drive plate 17 corresponds slightly below the drive plate wing cavity 1921 of the drive plate mating cavity 192. A drive plate push screw shaft fixing plate 1922 is formed between each pair of adjacent drive plate wing cavities 1921. A drive disc drive screw shaft 19221 is longitudinally fixed on the disc drive screw shaft fixing plate 1922. When the drive disc 17 rotates, the edge of the drive disc wing 173 supported on the drive disc drive screw shaft 19221 pushes the drive disc drive screw shaft 19221, causing the aforementioned seat support connecting disc 19 to rotate. The gear drive device 16 is fixed to the downward-facing side of the gear disc support cavity 11111 and corresponds to the aforementioned gear drive device clearance hole 11112. After passing upward through the aforementioned drive gear clearance hole 121, the gear drive device 16 enters the aforementioned gear disc cavity 142 and forms a meshing pair with the aforementioned gear ring 1421. The top of the gear drive device 16 also extends into the aforementioned output shaft mating hole 1521.

[0022] Depend on Figure 1 As shown, since there are nine toothed disc bosses 141 on the upper surface of the toothed disc 14, spaced apart around the circumference of the upper surface, the number of toothed disc boss spaces formed between each pair of adjacent toothed disc bosses 141 is also nine. The aforementioned roller spacer 1511, two rollers 1512, and two support blocks 1513 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 1 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 1511, two rollers 1512 and two support blocks 1513.

[0023] Depend on Figure 1 As can be seen from the diagram, a support block 1513 is provided on each side of a roller spacer 1511 in contact with the roller spacer 1511, and a roller 1512 is provided on the side of each support block 1513 facing away from the roller spacer 1511. 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 141 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 1511, two rollers 1512 and two support blocks 1513 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.

[0024] In this embodiment, the aforementioned support block 1513 is preferably made of rubber, but it can also be made of nylon or other equivalent materials.

[0025] Please continue reading Figure 1In this embodiment, the aforementioned chassis 11 is rectangular in shape, and a movable disc anti-tipping claw fastening plate 112 is fixed to the four corners of the upward-facing side by a movable disc anti-tipping claw fastening plate screw 1121. The end of the movable disc anti-tipping claw fastening plate 112 facing the aforementioned support plate bracket 111 forms an n-shaped cavity 1122 with the cavity opening facing downward. The figure shows the movable disc anti-tipping claw screw screwed to the end, i.e., the upper end, of the movable disc anti-tipping claw. The locking nut 11211 is a locking plate screw; the aforementioned seat support connecting plate 19 is rectangular in shape and has a seat support connecting plate locking plate 193 fixed at each of the four corners on the downward-facing side. The position of the seat support connecting plate locking plate 193 corresponds to the aforementioned moving plate anti-tipping claw locking plate 112, and the end of the seat support connecting plate locking plate 193 away from the aforementioned drive plate mating cavity 192 forms a seat support connecting plate locking plate U-shaped cavity 1931 with the cavity opening facing upward. The seat support connecting plate 193 is fastened to the aforementioned moving plate anti-tipping claw fastening plate 112, and the seat support connecting plate 19 rotates clockwise or counterclockwise relative to the aforementioned chassis 11 within the length range of the aforementioned seat support connecting plate 193; on the upward-facing side of the aforementioned fixed plate 12, and at intervals corresponding to the aforementioned roller pressure plate fixing screw 1524, a screw base support cavity 123 is formed, and the base of the roller pressure plate fixing screw 1524 is supported in the screw base support cavity 123; the aforementioned roller pressure plate 153 has a roller pressure plate thread passage cavity 1532 at the central position. Furthermore, roller pressure plate fixing screw through holes 1531 are provided at intervals corresponding to the aforementioned set of roller pressure plate fixing screws 1524. After the aforementioned set of roller pressure plate fixing screws 1524 passes through the roller pressure plate fixing screw through holes 1531 from bottom to top, they are locked by roller pressure plate fixing screw locking nuts 15241 screwed to the ends of the set of roller pressure plate fixing screws 1524. A fixed plate fixing plate wire passage hole 124 is provided at the center of the aforementioned fixed plate 12, and a fixed plate wire passage cavity 1525 is provided at the center of the aforementioned fixed plate 152. The aforementioned drive plate cavity 172 constitutes a drive plate wire cavity.

[0026] See you later Figure 1The aforementioned gear drive device 16 includes a gear drive motor 161, a gear drive reduction gearbox 162, a gear drive reduction gearbox mounting bracket 163, and a gear drive gear 164. The gear drive motor 161 is fixed to and drives the gear drive reduction gearbox 162. The gear drive reduction gearbox 162, together with the gear drive motor 161, is fixed to the gear drive reduction gearbox mounting bracket 163. The output shaft 1621 of the gear drive reduction gearbox 162 faces upward, and an output shaft gear 16211 is provided on the output shaft 1621. The output shaft 1621 and the output shaft gear 16211... The gear extends upwards through the aforementioned gear drive device clearance hole 11112 and drive gear clearance hole 121 to the top of the aforementioned fixed plate 12. The gear output shaft gear 16211 of the gear drive gearbox meshes with the inner gear ring 1641 of the gear drive gear 164. The upper end of the gear drive gearbox output shaft 1621 rotatably meshes with the aforementioned output shaft mating hole 1521. The outer gear ring of the gear drive gear 164 meshes with the gear ring 1421 of the aforementioned gear cavity 142. The gear drive gear 164 drives the gear disk 14 to rotate. The aforementioned gear drive gearbox fixing bracket 163 is fixed to the aforementioned chassis 11 at the position corresponding to the downward-facing side of the aforementioned fixed plate fixing cavity 11111.

[0027] Depend on Figure 1 As shown, a toothed disc drive gearbox fixing bracket fixing screw hole 11113 is provided on the bottom wall of the aforementioned fixed plate fixing cavity 11111. A bracket fixing screw hole 125 is provided on the aforementioned fixed plate fixing plate 12 at a position corresponding to the toothed disc drive gearbox fixing bracket fixing screw hole 11113. The aforementioned toothed disc drive gearbox fixing bracket 163 is fixed to the aforementioned chassis 11 together with the fixed plate fixing plate 12 by bracket fixing screws passing from bottom to top through the bracket screw hole 1631, the toothed disc drive gearbox fixing bracket fixing screw hole 11113 and the bracket fixing screw hole 125 formed on the toothed disc drive gearbox fixing bracket 163. In this embodiment, the aforementioned toothed disc drive motor 161 is a motor with forward and reverse rotation functions.

[0028] 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, etc., when the aforementioned turntable assembly 1 is to be operated or rotated for adjustment, the passenger operates the corresponding touch button on the electrical controller to make the gear drive motor 161 of the gear drive device 16 of the turntable assembly 1 work. The gear drive motor 161 drives the gear drive reduction gearbox 162. The gear drive reduction gearbox output shaft gear 16211 on the gear drive reduction gearbox output shaft 1621 of the gear drive reduction gearbox 162 drives the gear drive gear 164. Since the gear drive gear 164 meshes with the gear ring 1421 on the cavity wall of the gear cavity 142 of the gear plate 14, the gear drive gear 164 drives the gear plate 14 to rotate, and the gear plate 14 drives the gear plate pressure ring 15. Because the fixed plate rim 1522, which eliminates backlash, is tangent to the roller 1512, instability and even abnormal noise caused by backlash during the movement of the aforementioned moving parts can be avoided. Since the gear plate support 13, gear plate pressure ring 15, and drive plate 17 are fixedly connected by drive plate connecting screws 132, when the gear plate 14 drives the gear plate pressure ring 15 to rotate, the gear plate support 13 and drive plate 17 also rotate. Thus, the drive disc wing 173 of the drive plate 17, through its action on the drive plate pushing screw shaft 19221, causes the seat support connecting plate 19, carrying the car seat mounted on it, to rotate, for example, from facing forward to facing backward, for business negotiations or other activities. When turning from rear to front, simply operate the touch button in the opposite direction to reverse the operation of the gear plate drive motor 161.

[0029] During the rotation of the aforementioned gear disk 14, the fixed disk edge 1522 of the aforementioned static fixed disk 152 will press against the rollers in the rollers 1512 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 1513, so that the gear disk pressure ring 15 has sufficient rotational clearance (or "room") to rotate with the gear disk 14. When the gear disk 14 stops rotating, the rollers previously subjected to the rotational direction by the fixed disk 152 are supported in the rotational direction. The ejection block reliably positions the rollers in the aforementioned rotational direction between the fixed plate rim 1522 and the side of the toothed disc retaining ring cavity 151 of the toothed disc retaining ring 15 directly opposite the fixed plate rim 1522. This reliably locks the toothed disc retaining ring 15 together with the toothed disc 14 and eliminates gaps. Simultaneously, due to the action of the toothed disc boss 141 directly formed on the upward-facing side of the toothed disc 14, and the combined action of the rollers 1512 and the support block 1513, the toothed disc 14 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 1522 and the roller 1512 allows the gear ring 15 and gear 14 to rotate freely. In the non-rotating state, the support block 1513 is released, and the roller 1512 reliably locks (positions) the gear ring 15 and gear 14 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 15 and gear 14, they will not rotate because they are locked by the roller 1512, thus ensuring the car seat remains stationary and enhancing safety. Under these conditions, since the gear ring 15 and gear 14 do not rotate, they effectively protect the gear drive reduction gearbox 162 of the gear drive device 16 structure, ultimately protecting the gear drive motor 161. Furthermore, the applicant's tests show that the rollers 1512 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 141 and the upward-facing surface of the toothed disc 14 are configured as separate structures, then they should be considered equivalent technical means.

[0030] 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 car seat turntable structure, comprising a turntable assembly (1), the turntable assembly (1) comprising a chassis (11), a fixed plate fixing plate (12), a gear plate support plate (13), a gear plate (14), a gear plate pressure ring (15), a gear plate drive device (16), a drive plate (17), a support plate (18), and a seat support connecting plate (19), wherein the chassis (11) is non-rotating and, in use, is fixed to a car seat slide rail, a car floor, or a chassis fixing seat mounted on the car floor, the fixed plate fixing plate (12) is located at the center of the side of the chassis (11) facing upwards, the gear plate support plate (13) is supported on the side of the chassis (11) facing upwards, and a gear plate seat cavity (131) is formed on the side of the gear plate support plate (13) facing upwards. A fixed plate fixing plate mating cavity (1311) is formed at the center of the toothed disc seat cavity (131). The fixed plate fixing plate (12) extends into the fixed plate fixing plate mating cavity (1311). The toothed disc (14) is supported in the toothed disc seat cavity (131). A toothed ring (1421) is formed on the cavity wall of the toothed disc cavity (142) of the toothed disc (14) and around the circumference of the cavity wall. The drive disc (17) together with the toothed disc pressure ring (15) is fixed to the toothed disc tray (13). The seat support connecting plate (19) is supported on the side of the chassis (11) facing upward. The side of the seat support connecting plate (19) facing downward rotatably mates with the side of the chassis (11) facing upward and forms a rotating pair with the side of the support disc (18) facing upward. The characteristic is that: The gear drive device (16) is fixed to the center position of the chassis (11) on the downward-facing side and extends above the chassis (11) to form a meshing pair with the gear ring (1421).

2. The automotive seat turntable structure according to claim 1, characterized in that: A support plate holder (111) protruding from the upper surface of the chassis (11) is formed in the middle of the upward-facing side of the support plate holder (111). A downward-recessed gear plate holder cavity (1111) is formed in the central region of the support plate holder (1111). A fixed plate fixing cavity (11111) recessed in the surface of the gear plate holder cavity (11111) is formed. A gear plate drive device clearance hole (11112) is formed in the center of the fixed plate fixing cavity (11111). A drive gear clearance hole (121) is formed on the fixed plate (12) and at the position corresponding to the gear plate drive device (16), extending from the upper surface of the fixed plate fixing plate (12) to the lower surface. The toothed disc support (13) is supported in the toothed disc support cavity (1111); a set of toothed disc bosses (141) are formed on the upward-facing side surface of the toothed disc (14) and around the circumference of the toothed disc (14) at equal intervals.On the cavity wall of the toothed disc pressure ring cavity (151) of the toothed disc pressure ring (15) and around the cavity wall of the toothed disc pressure ring cavity (15), a set of roller spacers (1511) extending toward the center of the toothed disc pressure ring cavity (151) are formed at equal intervals. On each side of each roller spacer (1511), a support block (1513) is provided. On the side of each support block (1513) facing away from the roller spacer (1511), a roller (1512) is provided and supported on the upward-facing side surface of the toothed disc (14) along with the support block (1513). The support block (1513) and the roller (1512) together with the roller spacers (1511) 1511) Between two adjacent gear disc bosses (141) in a set of gear disc bosses (141), a fixed plate (152) is provided in the gear disc pressure ring cavity (151). An output shaft mating hole (1521) is opened on the fixed plate (152) at a position corresponding to the gear disc drive device (16). The fixed plate edge (1522) of the fixed plate (152) is tangent to the roller (1512). The fixed plate (152) is fixed to the fixed plate fixing screw hole (122) opened on the fixed plate fixing plate (12) by spaced fixed plate fixing screws (1523). A roller pressure plate (1511) is also provided on the upper surface corresponding to the gear disc pressure ring (15). 53) The roller pressure plate (153) limits the upper end face of the roller (1512) and the support block (1513), and the roller pressure plate (153) is fixed to the fixed plate (152) by a set of roller pressure plate fixing screws (1524) arranged on the fixed plate (152) and spaced apart. The drive plate (17) is positioned above the roller pressure plate (153) and extends from bottom to top through the drive plate connecting screw (132) on the toothed plate tray (13) through the toothed plate pressure ring screw hole (154) on the toothed plate pressure ring (15) and the drive plate screw hole (171) on the drive plate (17). The drive disk (17) is locked by a locking nut (1321) screwed onto the upper end of the drive disk connecting screw (132). The central region of the drive disk (17) forms the drive disk cavity (172). The support disk (18) is supported and fixed by screws to the upward-facing side of the support disk bracket (111). A bearing ring support step ring (181) is formed in the central region of the support disk (18) and around the perimeter of the support disk (18). A bearing ring (18111) is provided on the upper surface (1811) of the bearing ring support step ring (181). The central region of the bearing ring support step ring (181) is the support disk cavity (182).

3. The automotive seat turntable structure according to claim 1, characterized in that: The chassis (11) has a rectangular body structure, and the seat support connecting plate (19) also has a rectangular body structure. The four corners of the seat support connecting plate (19) facing downward are rotatably engaged with the four corners of the chassis (11) facing upward.

4. The automotive seat turntable structure according to claim 2, characterized in that: A support plate convex ring (183) is formed along the upper edge of the support plate (18) and around its circumference. A support plate convex ring insertion groove (191) is formed on the seat support connecting plate (19) facing downwards and corresponding to the support plate convex ring (183) of the support plate (18). The support plate convex ring (183) extends into the support plate convex ring insertion groove (191). A drive plate mating cavity (192) with the same shape as the drive plate (17) is formed in the central region of the seat support connecting plate (19). The drive plate wing (173) of the drive plate (17) corresponds slightly below the drive plate wing cavity (1921) of the drive plate mating cavity (192). A drive plate push screw shaft is formed between each two adjacent drive plate wing cavities (1921) for fixing. A drive disk push screw shaft (19221) is fixed longitudinally on the drive disk push screw shaft fixing plate (1922). When the drive disk (17) rotates, the drive disk push screw shaft (19221) is pushed by the edge of the drive disk wing (173) supported on the drive disk push screw shaft (19221), causing the seat support connecting plate (19) to rotate. The gear drive device (16) corresponds to the gear drive device clearance hole (11112). The gear drive device (16) enters the gear cavity (142) after passing through the drive gear clearance hole (121) and forms a meshing pair with the gear ring (1421). The top of the gear drive device (16) also extends into the output shaft mating hole (1521).

5. The automotive seat turntable structure according to claim 4, characterized in that: At each of the four corners of the chassis (11) facing upward, a movable disc anti-rollover claw fastening plate (112) is fixed by a movable disc anti-rollover claw fastening plate screw (1121). The end of the movable disc anti-rollover claw fastening plate (112) facing the support plate bracket (111) forms an n-shaped cavity (1122) with the cavity opening facing downward. At each of the four corners of the seat support connecting plate (19) facing downward, a seat support connecting plate fastening plate (193) is fixed. The position of the seat support connecting plate fastening plate (193) corresponds to the movable disc anti-rollover claw fastening plate (112), and the end of the seat support connecting plate fastening plate (193) away from the drive plate mating cavity (192) forms a U-shaped cavity (1931) with the cavity opening facing upward. The seat support connecting plate (193) is fastened to the moving plate anti-tipping claw fastening plate (112), and the seat support connecting plate (19) rotates clockwise or counterclockwise relative to the chassis (11) within the length range of the seat support connecting plate (193).

6. The automotive seat turntable structure according to claim 2, characterized in that: On the upward-facing side of the fixed plate (12) and at a position corresponding to the roller pressure plate fixing screw (1524), a screw base support cavity (123) is formed, and the base of the roller pressure plate fixing screw (1524) is supported in the screw base support cavity (123).

7. The automotive seat turntable structure according to claim 6, characterized in that: Roller pressure plate (153) is provided with roller pressure plate fixing screw through holes (1531) at intervals corresponding to the positions of the set of roller pressure plate fixing screws (1524). After the set of roller pressure plate fixing screws (1524) passes through the roller pressure plate fixing screw through holes (1531) from bottom to top, they are locked by roller pressure plate fixing screw locking nuts (15241) screwed to the ends of the set of roller pressure plate fixing screws (1524). A fixed plate fixing plate wire passage hole (124) is provided at the center of the fixed plate fixing plate (12), and a fixed plate wire passage cavity (1525) is provided at the center of the fixed plate (152). The drive plate cavity (172) is configured as the drive plate wire passage cavity.

8. The automotive seat turntable structure according to claim 4, characterized in that: The aforementioned gear drive device (16) includes a gear drive motor (161), a gear drive reduction gearbox (162), a gear drive reduction gearbox fixing bracket (163), and a gear drive gear (164). The gear drive motor (161) is fixed to the gear drive reduction gearbox (162) and engages in transmission with it. The gear drive reduction gearbox (162), together with the gear drive motor (161), is fixed to the gear drive reduction gearbox fixing bracket (163). The output shaft (1621) of the gear drive reduction gearbox (162) faces upward, and a gear drive reduction gearbox output shaft gear (16211) is provided on the output shaft (1621). The output shaft (1621) of the gear drive reduction gearbox, together with the gear drive reduction gearbox output shaft gear (16211), forms a gear drive reduction gearbox output shaft gear. The gear extends upward through the clearance hole (11112) of the gear drive device and the clearance hole (121) of the drive gear to the top of the fixed plate (12). The output shaft gear (16211) of the gear drive gearbox meshes with the inner gear ring (1641) of the gear drive gear (164). The upper end of the output shaft (1621) of the gear drive gearbox rotatably meshes with the output shaft mating hole (1521). The outer gear ring of the gear drive gear (164) meshes with the gear ring (1421) of the gear disk cavity (142). The gear drive gear (164) drives the gear disk (14) to rotate. The fixed bracket (163) of the gear drive gearbox is fixed to the chassis (11) at the position corresponding to the downward-facing side of the fixed plate cavity (11111).

9. The automotive seat turntable structure according to claim 8, characterized in that: A fixing screw hole (11113) for fixing the gear drive gearbox fixing bracket is provided on the bottom wall of the fixed plate fixing cavity (11111). A bracket fixing screw hole (125) is provided on the fixed plate fixing plate (12) at a position corresponding to the fixing screw hole (11113) for fixing the gear drive gearbox fixing bracket. The gear drive gearbox fixing bracket (163) is fixed to the base plate (11) together with the fixed plate fixing plate (12) by the bracket fixing screw passing from bottom to top through the bracket screw hole (1631), the gear drive gearbox fixing bracket fixing screw hole (11113) and the bracket fixing screw hole (125) formed on the gear drive gearbox fixing bracket (163).

10. The automotive seat turntable structure according to claim 8, characterized in that: The gear drive motor (161) is a motor with forward and reverse rotation functions.

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