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] The invention belongs to the technical field of automobile parts, and particularly relates to a car seat turntable structure. Background Art

[0002] As consumers' demands for vehicle versatility and seating flexibility continue to rise, the rotation function of car seats has become an essential factor in meeting user needs. This is especially true for SUVs, MPVs / commercial vehicles, the Buick GL8, the Ideal L9, and new energy vehicles. The demand for a "one vehicle for multiple uses"—such as cargo, camping, family travel, business, and interaction—is forcing car seat developers, designers, and manufacturers to continuously innovate seat structures.

[0003] In summary, the positive significance of being able to rotate car seats, especially those in the third row, is at least in the following aspects: easier getting in and out of the car; optimized space flexibility; enhanced comfort; family and childcare-friendly, such as making it easier to feed infants and young children; business and multi-functional uses, such as rotating the front seats to form a face-to-face space with the back seats, accommodating passenger conversations and interactions, business negotiations, and even entertainment such as playing chess or cards; safety assistance, etc.

[0004] As is known in the industry, the structural system of a car seat turntable is invariably equipped with a gear drive mechanism consisting of a gear drive motor, a gear drive reduction gearbox, etc. for driving the gear disk to rotate. However, since the gear drive mechanism in the prior art rotates with the rotating component, for example, when it is set on a seat support connecting plate serving as an 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 sprocket drive mechanism, which rotates with the seat support disc, exhibits the following drawbacks during actual use: increased complexity, as frequent rotation of electrical wires, sensor cables, and other components cannot be avoided, leading to entanglement or twisting of cables; detrimental to electrical system stability, as the sprocket drive motor, which rotates with the seat support disc, is difficult or impossible to connect to the power supply and controller via fixed wiring, resulting in poor contact, signal delays, or even interruptions; impacts precision control, placing relatively stringent control requirements on the sprocket drive motor, which rotates with the seat support disc, causing its own vibrations or micro-vibrations to be superimposed on the movement of the vehicle seat, compromising the smooth rotation of the vehicle seat; and, to a certain extent, insufficient safety and durability, as the sprocket drive motor rotates with the seat support disc, generating centrifugal force during rotation. Although the rotation speed is relatively slow and the centrifugal force is relatively small, long-term and frequent rotation can lead to fatigue damage. Given the aforementioned issues, reasonable improvements are necessary, and the technical solutions described below were developed in this context. Summary of the Invention

[0005] The task of the present invention is to provide a car seat turntable structure that helps to avoid complexity, is beneficial to ensuring the stability of the electrical system, is beneficial to meeting the expected precision control requirements, and is convenient for satisfying the passengers' requirements for a good experience.

[0006] The task of the present invention is accomplished in this way: a car seat turntable structure includes a turntable assembly, which includes a chassis, a fixed plate, a gear plate support, a gear plate, a gear plate, a gear plate pressure ring, a gear plate drive device, a drive plate, a support plate and a seat support connecting plate. The chassis does not rotate and is fixed to the car seat slide rail, the car's car floor or a chassis fixing seat arranged on the car floor when in use. The fixed plate fixing plate is arranged at the central position of the upper side of the chassis, the gear plate support is supported on the upper side of the chassis, and a gear plate seat cavity is formed on the upper side of the gear plate support, and a certain The disc fixing disc cooperates with the cavity, the fixed disc fixing disc extends into the fixed disc fixing disc cooperation cavity, the gear disc is supported in the gear disc seat cavity, and a gear ring is formed on the cavity wall of the gear disc cavity and around the circumferential direction of the cavity wall. The driving disc is fixed to the gear disc support basin together with the gear disc pressure ring, and the seat support connecting disc is supported on the upward side of the chassis, and the downward side of the seat support connecting disc is rotatably matched with the upward side of the chassis and forms a rotating pair with the upward side of the support disc, which is characterized in that: the gear disc drive device is fixed to the central position of the downward side of the chassis and extends above the chassis to form a meshing pair with the gear ring.

[0007] In a specific embodiment of the present invention, a support disc holder protruding from the upper surface of the chassis is formed in the middle of the upper side of the chassis, a gear disc support basin cavity recessed downward is formed in the central area of ​​the support disc holder, the gear disc support basin cavity is formed with a fixed disc fixing cavity recessed in the surface of the gear disc support basin cavity, a gear disc drive device clearance hole is provided at the central position of the fixed disc fixing cavity, and a drive gear clearance hole is provided on the fixed disc fixing disc at a position corresponding to the gear disc drive device, extending from the upper surface of the fixed disc fixing disc to the lower surface. The fixed gear disc support basin is supported in the gear disc support basin cavity; a group of gear disc bosses are formed on the upper side surface of the gear disc and around the circumference of the gear disc at equal distances; a group of roller baffles extending toward the center direction of the gear disc pressure ring cavity are formed on the gear disc pressure ring cavity wall of the gear disc pressure ring and around the gear disc pressure ring cavity wall at equal distances, and a support block is provided on both sides of each roller baffle in the group of roller baffles, and a roller is provided on the side of each support block facing away from the roller baffle, which is supported on the upper side surface of the gear disc together with the support block, the support block and the roller and the roller baffle correspond to two adjacent gear disc bosses in a group of gear disc bosses, and a fixed disc is provided in the gear disc pressure ring cavity, and an output shaft matching hole is provided on the fixed disc and at a position corresponding to the gear disc drive device, the fixed disc edge of the fixed disc is tangent to the roller, and the fixed disc is connected to the fixed disc fixing screw provided on the fixed disc fixing disc by intervals. The cam is fixed with a fixed screw hole, and a roller pressure plate is also provided on the upper surface corresponding to the gear disc pressure ring. The roller pressure plate limits the upper end face of the roller and the support block, and the roller pressure plate is fixed to the fixed plate by a group of roller pressure plate fixing screws arranged on the fixed plate and spaced apart. The driving plate is extended from bottom to top through the gear disc pressure ring screw hole and the driving plate screw hole on the driving plate at a position corresponding to the upper part of the roller pressure plate by the driving plate connecting screw located on the gear disc support basin, and is locked by a locking nut screwed on the upper end part of the driving plate connecting screw. The central area of ​​the driving plate constitutes a driving plate cavity; the support plate is supported and fixed to the upper side of the support plate bracket by screws, and a bearing ring supporting step ring is formed in the middle area of ​​the support plate and around the support plate, and a bearing ring is provided on the upper surface of the bearing ring supporting step ring of the bearing ring supporting step ring. The central area of ​​the bearing ring supporting step ring is the supporting plate cavity.

[0008] In another specific embodiment of the present invention, the chassis is of rectangular structure, and the seat support connecting plate is also of rectangular structure, and the four corners of the seat support connecting plate facing downward are rotatably fastened to the four corners of the chassis facing upward.

[0009] In another specific embodiment of the present invention, a support plate convex ring is formed on the upper edge of the support plate and around the circumferential direction of the support plate, and a support plate convex ring insertion groove is formed at the position of the support plate convex ring facing downward and corresponding to the support plate convex ring of the support plate, and the support plate convex ring is inserted into the support plate convex ring insertion groove. A drive plate matching cavity with the same shape as the drive plate is formed in the central area of ​​the seat support connecting plate, and the drive plate wings of the drive plate correspond to the lower part of the drive plate wing cavity of the drive plate matching cavity, and a drive plate wing cavity is formed between each two adjacent drive plate wing cavities. There is a driving disc pushing screw shaft fixing plate, on which a driving disc pushing screw shaft fixing plate is fixed in a longitudinal state. When the driving disc rotates, the edge of the driving disc wing supported on the driving disc pushing screw shaft pushes the driving disc pushing screw shaft to rotate the seat support connecting disc. The toothed disc driving device corresponds to the toothed disc driving device clearance hole. The toothed disc driving device enters the toothed disc cavity after passing through the driving gear clearance hole upward and forms a meshing pair with the gear ring. The top of the toothed disc driving device also extends into the output shaft matching hole.

[0010] In another specific embodiment of the present invention, a moving disc anti-flipping claw fastening plate is fixed to each of the four corners on the upward side of the chassis by a moving disc anti-flipping claw fastening plate screw, and the moving disc anti-flipping claw fastening plate forms an N-shaped cavity of a moving disc anti-flipping claw fastening plate with a cavity opening facing downward at one end thereof facing the support plate bracket; a seat support connecting plate fastening plate is fixed to the four corners on the downward side of the seat support connecting plate, the position of the seat support connecting plate fastening plate corresponds to the moving disc anti-flipping claw fastening plate, and the seat support connecting plate fastening plate forms a U-shaped cavity of a seat support connecting plate fastening plate with a cavity opening facing upward at one end thereof away from the driving plate matching cavity, the seat support connecting plate fastening plate and the moving disc anti-flipping claw fastening plate are fastened to 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 the present invention, a screw base supporting cavity is formed on the upward side of the fixed plate 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 supporting cavity.

[0012] In a more specific embodiment of the present invention, roller pressure plate fixing screw through holes are provided on the roller pressure plate and at intervals at positions corresponding to the group of roller pressure plate fixing screws. After the group of roller pressure plate fixing screws pass 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 on the ends of the group of roller pressure plate fixing screws. A fixed plate fixing plate wire passing hole is provided at the central position of the fixed plate, and a fixed plate wire passing cavity is provided at the central position of the fixed plate, and the drive plate cavity is constituted as a drive plate wire passing cavity.

[0013] In a further specific embodiment of the present invention, the gear drive device includes a gear drive motor, a gear drive reduction box, a gear drive reduction box fixing bracket and a gear drive gear, the gear drive motor is fixed to the gear drive reduction box and cooperates with the gear drive reduction box transmission, the gear drive reduction box together with the gear drive motor and the gear drive reduction box fixing bracket is fixed, the gear drive reduction box output shaft of the gear drive reduction box faces upward and is provided with a gear drive reduction box output shaft gear, the gear drive reduction box output shaft together with the gear drive reduction box is fixed to the gear drive motor and the gear drive reduction box fixing bracket, the gear drive reduction box output shaft faces upward and is provided with a gear drive reduction box output shaft gear, the gear drive reduction box output shaft together with the gear drive reduction box is fixed to the gear drive motor and the gear drive reduction box fixing bracket, the gear drive reduction box output shaft faces upward and is provided with a gear drive reduction box output shaft gear, the gear drive reduction box output shaft The output shaft gear of the gearbox extends from bottom to top through the gear plate drive device clearance hole and the drive gear clearance hole to the top of the fixed plate, and the gear plate drives the output shaft gear of the reduction gear box to mesh with the gear plate drive gear inner gear ring of the gear plate drive gear, and the upper end portion of the gear plate drive reduction gear box output shaft is rotatably matched with the output shaft matching hole, and the outer gear ring of the gear plate drive gear is meshed with the gear ring of the gear plate cavity, and the gear plate is driven by the gear plate drive gear to rotate, and the gear plate drive reduction gear box fixing bracket is fixed to the chassis at a position corresponding to the downward side of the fixed plate fixing cavity.

[0014] In a more specific embodiment of the present invention, a sprocket drive reducer fixing bracket fixing screw hole 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 sprocket drive reducer fixing bracket fixing screw hole. The sprocket drive reducer 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 sprocket drive reducer fixing bracket fixing screw hole and the bracket fixing screw hole formed on the sprocket drive reducer fixing bracket from bottom to top.

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

[0016] The technical effect of the technical solution provided by the present invention is: since the technical bias in the existing technology is overcome and the gear drive device with a gear drive motor is arranged on the downward side of the non-rotating chassis, the complexity of the structure is avoided, which is not only conducive to ensuring the stability of the electrical system and meeting the desired precision control requirements, but also facilitates meeting the passengers' good experience requirements. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure: 1. Turntable assembly, 11. Chassis, 111. Support plate, 1111. Sprocket plate support cavity, 11111. Fixed plate fixing cavity, 11112. Sprocket drive mechanism clearance hole, 11113. Sprocket drive reducer fixing bracket fixing screw holes, 112. Rotating plate anti-flip claw fastening plate, 1121. Rotating plate anti-flip claw fastening plate screws, 11211. Locking nut for the anti-flip claw fastening plate of the dynamic disc, 1122. N-shaped cavity for the anti-flip claw fastening plate of the dynamic disc, 12. Fixed disc fixing plate, 121. Drive gear clearance hole, 122. Fixed disc fixing screw hole, 123. Screw base support cavity, 124. Fixed disc fixing plate threading hole, 125. Bracket fixing screw hole, 13. Toothed disc support basin, 131. Toothed disc seat cavity, 1311. Fixed disc fixing disc mating cavity, 132. Drive disc connecting screw, 1321. Locking nut, 14. Toothed disc, 141. Toothed disc boss, 142. Ring gear cavity, 1421. Ring gear, 15. Toothed disc pressure ring, 151. Sprocket pressure ring cavity, 1511. Roller spacer, 1512. Roller, 1513. Support block, 152. Fixed plate, 1521. Output shaft matching hole, 1522. Fixed plate rim, 1523. Fixed plate fixing screw, 1524. Roller pressure plate fixing screw, 15241. Roller pressure plate fixing screw lock nut, 1525. Fixed plate wire cavity, 153. Roller pressure plate, 1531. Roller pressure plate fixing screw hole, 1532. Roller pressure plate wire cavity, 154. Sprocket pressure ring screw hole, 16. Sprocket drive unit, 161. Sprocket drive motor, 162. Sprocket drive reduction gearbox, 1621. Sprocket drive reduction gearbox output shaft, 16211. Sprocket drive reduction gearbox output shaft gear, 163. Sprocket drive reduction gearbox fixing bracket, 1631. Bracket screw hole, 164. Sprocket drive gear, 1641. Sprocket drive gear inner ring, 17. Drive plate, 171. Drive plate screw hole, 172. Drive plate cavity, 173. Drive plate wing, 18. Support plate, 181. Bearing ring support step ring, 1811. Bearing ring support step ring upper surface, 18111. Bearing ring, 182. Support plate cavity, 183. Support plate boss, 19. Seat support connecting plate, 191. Support plate boss insertion groove, 192. Drive plate mating cavity, 1921. Drive plate wing cavity, 1922. Drive plate push screw shaft fixing plate, 19221. Drive plate push screw shaft, 193. Seat support connecting plate buckle plate, 1931. Seat support connecting plate buckle plate U-shaped cavity. DETAILED DESCRIPTION

[0019] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments does not limit the scheme of the present invention. Any equivalent transformation that is merely formal and not substantial based on the concept of the present invention should be regarded as within the scope of the technical scheme of the present invention.

[0020] In the following description, all concepts related to directionality or orientation, such as up, down, left, right, front and back, are based on Figure 1 The current position state is used as a reference, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0021] See Figure 1The aforementioned turntable assembly 1 includes a chassis 11, a fixed plate 12, a geared disc support 13, a geared disc 14, a geared disc pressure ring 15, a geared disc drive 16, a drive disc 17, a support disc 18, and a seat support connection disc 19. The chassis 11 does not rotate, that is, it is static. In use, the chassis 11 can be fixedly connected to the upper rail (also called the "movable rail") of the vehicle seat rail structure, directly to the vehicle's floor, or even to a chassis fixing seat provided on the vehicle floor, depending on actual needs. In view of the foregoing, the present invention does not require a single limitation on the specific fixing method of the chassis 11. A support disc holder 111 protruding from the upper surface of the chassis 11 is formed in the middle portion of the upper side of the chassis 11. A gear disc support basin cavity 1111 recessed downward is formed in the central area of ​​the support disc holder 111. The gear disc support basin cavity 1111 is formed with a fixed disc fixing cavity 11111 recessed in the surface of the gear disc support basin cavity 1111. A gear disc drive device clearance hole 11112 is provided at the central position of the fixed disc fixing cavity 11111. The fixed disc fixing disc 12 is arranged and fixed in the fixed disc fixing cavity 11111. A drive gear clearance hole 121 is provided on the fixed disc fixing disc 12 and at a position corresponding to the gear disc drive device 16, which passes from the upper surface of the fixed disc fixing disc 12 to the lower surface. The gear disc support basin 13 is supported in the aforementioned gear disc support basin cavity 1111, and a gear disc seat cavity 131 is formed on the upward side of the gear disc support basin 13, and a fixed disc fixed disc matching cavity 1311 is formed at the central position of the gear disc seat cavity 131. The aforementioned fixed disc fixed disc 12 penetrates into the fixed disc fixed disc matching cavity 1311, and the gear disc 14 is supported in the gear disc seat cavity 131. A group of gear disc bosses 141 are formed at equal distances on the surface of the side of the gear disc 14 facing upward and around the circumferential direction of the gear disc 14, and a gear ring 1421 is formed on the cavity wall of the gear disc cavity 142 of the gear disc 14 and around the circumferential direction of the cavity wall. The driving disc 17 is fixed to the aforementioned gear disc support basin 13 together with the gear disc pressure ring 15, and on the gear disc pressure ring cavity wall of the gear disc pressure ring cavity 151 of the gear disc pressure ring 15 and around A group of roller baffles 1511 extending toward the center of the gear disc pressure ring cavity 151 are formed in an equidistant gap state around the cavity wall of the gear disc pressure ring cavity. A support block 1513 is provided on both sides of each roller baffle in the group of roller baffles 1511. A roller 1512 is provided on the side of each support block 1513 facing away from the roller baffle 1511 and supported on the upward side surface of the gear disc 14 together with the support block 1513. The support block 1513 and the roller 1512, together with the roller baffle 1511, correspond to two adjacent gear disc bosses 141 in a group of gear disc bosses 141. A fixed disk 152 is provided in the aforementioned gear disc pressure ring cavity 151. An output shaft matching hole 1521 is provided on the fixed disk 152 and at a position corresponding to the gear disc drive device 16.The fixed disk edge 1522 of the fixed disk 152 is tangent to the aforementioned roller 1512, and the fixed disk 152 is fixed to the fixed disk fixing screw hole 122 opened on the fixed disk fixing disk 12 by fixed disk fixing screws 1523 distributed at intervals. A roller pressure plate 153 is also provided on the upper surface corresponding to the gear plate pressure ring 15, and the roller pressure plate 153 limits the upper end surface of the aforementioned roller 1512 and the support block 1513, and the roller pressure plate 153 is fixed to the fixed disk 152 by a group of roller pressure plate fixing screws 1524 provided on the aforementioned fixed disk 152 and distributed at intervals. The drive disk 17 passes through from bottom to top at a position corresponding to the upper side of the roller pressure plate 153 through the drive disk connecting screw 132 located on the gear plate support basin 13. The gear disc pressure ring screw hole 154 provided on the gear disc pressure ring 15 and the drive disc screw hole 171 on the drive disc 17 extend to the top of the drive disc 17 and are locked by a locking nut 1321 screwed on the upper end of the drive disc connecting screw 132. The central area of ​​the drive disc 17 is constituted as a drive disc cavity 172, and the support disc 18 is supported and fixed to the aforementioned support disc bracket 111 by screws. A bearing ring supporting step ring 181 is constituted in the central area of ​​the support disc 18 and around the support disc 18. A bearing ring 18111 is provided on the upper surface 1811 of the bearing ring supporting step ring of the bearing ring supporting step ring 181. The central area of ​​the bearing ring supporting step ring 181 is the support disc cavity 182. The seat support The four corners of the downward side of the supporting connecting plate 19 are rotatably fastened to the four corners of the upward side of the aforementioned chassis 11, and a support plate convex ring insertion groove 191 is formed at the position of the seat support connecting plate 19 facing downward and corresponding to the support plate convex ring 183 of the support plate 18, and the support plate convex ring 183 is inserted into the support plate convex ring insertion groove 191. A drive plate matching cavity 192 with the same shape as the aforementioned drive plate 17 is formed in the central area of ​​the seat support connecting plate 19, and the drive plate wing 173 of the drive plate 17 corresponds to the drive plate wing cavity 1921 below the drive plate matching cavity 192, and a drive plate pushing screw shaft fixing plate 1922 is formed between each two adjacent drive plate wing cavities 1921. A drive disc push screw shaft 19221 is longitudinally fixed to the disc push screw shaft fixing plate 1922. When the drive disc 17 rotates, the edge of the drive disc wing 173 supported on the drive disc push screw shaft 19221 pushes the drive disc push screw shaft 19221, causing the seat support connecting disc 19 to rotate. The gear disc drive device 16 is fixed to the downward side of the gear disc support basin cavity 11111 and corresponds to the gear disc drive device clearance hole 11112. After passing upward through the drive gear clearance hole 121, the gear disc drive device 16 enters the gear disc cavity 141 and forms a meshing pair with the ring gear 1421. The top of the gear disc drive device 16 also extends into the output shaft matching hole 1521.

[0022] Depend on Figure 1 As shown, since the number of the set of toothed disc bosses 141 on the upper surface of the toothed disc 14 is nine and spaced apart around the upper surface of the toothed disc 14 in the circumferential direction, the number of toothed disc boss spaces formed between two 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 combined anti-backlash and anti-impact device. Therefore, through the above description and in combination with the applicant's Figure 1 From the diagram, it can be determined without a doubt that there are nine aforementioned anti-backlash and anti-impact devices, which correspond to the aforementioned toothed disc boss spaces, that is, each toothed disc boss space is allocated an anti-backlash and anti-impact device composed of a 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, with the roller spacer 1511 in contact with the support block 1513, 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 number pertains to only one embodiment of the present invention, it cannot be considered a mandatory number that cannot be reasonably increased or decreased. In other words, if the number of sprocket bosses 141 is increased or decreased, thereby correspondingly changing the number of sprocket boss spaces, and the number of the aforementioned anti-backlash and anti-impact devices composed of a roller spacer 1511, two rollers 1512, and two support blocks 1513 is also increased or decreased accordingly, then this should be considered a change in form rather than substance, and should be considered to be within the technical scope of the present invention.

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

[0025] Please continue to see Figure 1In this embodiment, the aforementioned chassis 11 is in the shape of a rectangular body and is fixed with a movable disc anti-flipping claw fastening plate 112 at the four corners on the upward side by movable disc anti-flipping claw fastening plate screws 1121. The movable disc anti-flipping claw fastening plate 112 is formed with an N-shaped movable disc anti-flipping claw fastening plate cavity 1122 with a cavity opening facing downward at one end of the movable disc anti-flipping claw fastening plate 112 facing the aforementioned support disc bracket 111. The figure shows the movable disc anti-flipping claw screwed on the end of the movable disc anti-flipping claw fastening plate screw 1121, that is, the upper end. The seat support connecting plate 19 is in the shape of a rectangular body and is fixed with a seat support connecting plate fastening plate 193 at the four corners on the downward side. The position of the seat support connecting plate fastening plate 193 corresponds to the aforementioned dynamic plate anti-flipping claw fastening plate 112, and the end of the seat support connecting plate fastening plate 193 away from the aforementioned driving plate matching cavity 192 forms a seat support connecting plate fastening plate U-shaped cavity 1931 with the cavity opening facing upward. The seat support connecting plate snap plate 193 is snapped with the aforementioned dynamic plate anti-flipping claw snap plate 112, and the seat support connecting plate 19 is rotated clockwise or counterclockwise relative to the aforementioned chassis 11 within the length range of the aforementioned seat support connecting plate snap plate 193; a screw base supporting cavity 123 is formed on the upper side of the aforementioned fixed plate 12 and at a position corresponding to the aforementioned roller pressure plate fixing screw 1524, and the base of the roller pressure plate fixing screw 1524 is supported in the screw base supporting cavity 123; the aforementioned roller pressure plate 153 having a roller pressure plate through-line cavity 1532 at the central position Roller pressure plate fixing screw through holes 1531 are provided on the top and at positions corresponding to the aforementioned group of roller pressure plate fixing screws 1524. After the aforementioned group of roller pressure plate fixing screws 1524 pass 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 on the ends of the group of roller pressure plate fixing screws 1524. A fixed plate fixing plate wire passing hole 124 is provided at the central position of the aforementioned fixed plate fixing plate 12, and a fixed plate wire passing cavity 1525 is provided at the central position of the aforementioned fixed plate 152. The aforementioned drive plate cavity 172 constitutes a drive plate wire cavity.

[0026] See you next time Figure 1The aforementioned sprocket drive device 16 includes a sprocket drive motor 161, a sprocket drive reduction box 162, a sprocket drive reduction box fixing bracket 163 and a sprocket drive gear 164. The sprocket drive motor 161 is fixed to the sprocket drive reduction box 162 and cooperates with the sprocket drive reduction box 162 in transmission. The sprocket drive reduction box 162, together with the sprocket drive motor 161, is fixed to the sprocket drive reduction box fixing bracket 163. The sprocket drive reduction box output shaft 1621 of the sprocket drive reduction box 162 faces upward and is provided with a sprocket drive reduction box output shaft gear 16211 on the sprocket drive reduction box output shaft 1621. The sprocket drive reduction box output shaft 1621, together with the sprocket drive reduction box output shaft gear 16211, It extends from bottom to top through the aforementioned gear drive device clearance hole 11112 and the drive gear clearance hole 121 to the top of the aforementioned fixed plate fixed plate 12, and the gear drive reduction box output shaft gear 16211 is engaged with the gear drive gear inner ring 1641 of the gear drive gear 164, and the upper end portion of the gear drive reduction box output shaft 1621 is rotatably matched with the aforementioned output shaft matching hole 1521, and the outer ring gear of the gear drive gear 164 is engaged with the ring gear 1421 of the aforementioned gear cavity 142, and the gear drive gear 164 drives the gear disc 14 to rotate, and the aforementioned gear drive reduction box fixing bracket 163 is fixed to the aforementioned chassis 11 at a position corresponding to the downward side of the aforementioned fixed plate fixing cavity 11111.

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

[0028] The applicant describes the use of the present invention. Since the electrical controller is set at a reasonable position of the car seat, such as the side, bottom or even the front side or armrest of the car seat, etc., when the aforementioned turntable assembly 1 is to be operated or rotationally adjusted, the passenger operates the corresponding touch button on the electrical controller to operate the sprocket drive motor 161 of the sprocket drive device 16 of the structural system of the turntable assembly 1, and the sprocket drive motor 161 drives the sprocket drive reducer 162, and the sprocket drive reducer output shaft gear 16211 on the sprocket drive reducer output shaft 1621 of the sprocket drive reducer 162 drives the sprocket drive gear 164. Since the sprocket drive gear 164 is engaged with the ring gear 1421 on the cavity wall of the ring gear cavity 142 of the sprocket 14, the sprocket drive gear 164 drives the sprocket 14 to rotate, and the sprocket 14 drives the sprocket pressure ring 15. The tangency of the backlash-eliminating fixed plate edge 1522 and roller 1512 prevents instability and even unusual noises caused by backlash during the movement of the aforementioned moving parts. Because the geared disc support 13, geared disc pressure ring 15, and drive disc 17 are fixedly connected by drive disc connecting screws 132, the geared disc support 13 and drive disc 17 rotate simultaneously with the geared disc pressure ring 15. Consequently, the drive disc wings 173 of drive disc 17, acting on the drive disc push screw shaft 19221, cause the seat support connecting disc 19, carrying the car seat mounted thereon, to rotate, for example, from a forward orientation to a rearward orientation for business negotiations or other activities. To reverse the direction from rear to front, simply operate the touch button in reverse, causing the geared disc drive motor 161 to operate in the reverse direction.

[0029] During the rotation of the toothed disc 14, the fixed disc edge 1522 of the static fixed disc 152 will squeeze the rollers 1512 of the structural system of the anti-backlash and anti-impact device in the direction of rotation, and the rollers in the direction of rotation will be squeezed or compressed by the rollers in the direction of rotation of the support block 1513, so that the toothed disc pressure ring 15 has enough rotation clearance (or "room") to rotate with the toothed disc 14. When the toothed disc 14 stops rotating, the rollers previously acted on in the direction of rotation by the fixed disc 152 are squeezed by the support block 1513 in the direction of rotation. The block pops out, reliably positioning the roller in the aforementioned rotational direction between the fixed disc edge 1522 and the side of the sprocket pressure ring cavity 151 of the sprocket pressure ring 15 that faces the fixed disc edge 1522. This reliably locks the sprocket pressure ring 15 and the sprocket 14 together and eliminates backlash. Simultaneously, the sprocket boss 141, directly formed on the upward side of the sprocket 14, works in conjunction with the roller 1512 and support block 1513 to reliably maintain the sprocket 14 in the locked position, ultimately achieving the purpose of locking the car seat and eliminating backlash. In the locked state, even the slightest wobble is nonexistent. In summary, during rotation, the tangential contact between fixed plate rim 1522 and roller 1512 allows sprocket pressure ring 15 and sprocket 14 to rotate freely. In the non-rotating state, support block 1513 is released, and roller 1512 securely locks (positions) sprocket pressure ring 15 and sprocket 14 together. When the vehicle encounters severe jolts, impacts, emergency braking, tight turns, or even collisions, the car seat generates torque. When this torque is transmitted to sprocket pressure ring 15 and sprocket 14, they are locked by roller 1512 and thus prevent rotation of the car seat, effectively ensuring safety. Under these conditions, since sprocket pressure ring 15 and sprocket 14 do not rotate, they effectively protect the sprocket drive reduction gearbox 162 of the sprocket drive device 16, and ultimately, the sprocket drive motor 161. Furthermore, the applicant's testing has shown that the synergistic effect of rollers 1512 in a set of anti-backlash and anti-impact devices, i.e., nine sets or units of anti-backlash and anti-impact devices, can generate a clamping force exceeding 3000 Newtons (3000N). The applicant would like to clarify that if the aforementioned toothed disc boss 141 and the upward-facing surface of the toothed disc 14 are formed as separate structures, this would be considered an equivalent technical solution.

[0030] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the technical effect column above.

Claims

1. A car seat turntable structure, comprising a turntable assembly (1), the turntable assembly (1) comprising a chassis (11), a fixed plate (12), a toothed disc support basin (13), a toothed disc (14), a toothed disc pressure ring (15), a toothed disc driving device (16), a driving disc (17), a support disc (18) and a seat support connecting disc (19), the chassis (11) is non-rotatable and is fixed to a car seat slide rail, a car compartment floor or a chassis fixing seat arranged on the car compartment floor in a use state, the fixed plate (12) is arranged at a central position on an upward side of the chassis (11), the toothed disc support basin (13) is supported on the upward side of the chassis (11), and a toothed disc seat cavity (131) is formed on the upward side of the toothed disc support basin (13) ), a fixed disc and fixed disc matching cavity (1311) is formed at the central position of the toothed disc seat cavity (131), the fixed disc and fixed disc (12) extends into the fixed disc and fixed disc matching cavity (1311), the toothed disc (14) is supported in the toothed disc seat cavity (131), a gear ring (1421) is formed on the cavity wall of the toothed disc cavity (142) of the toothed disc (14) and around the circumferential direction of the cavity wall, the driving disc (17) together with the toothed disc pressure ring (15) are fixed to the toothed disc support basin (13), the seat support connecting disc (19) is supported on the upper side of the chassis (11), the lower side of the seat support connecting disc (19) is rotatably matched with the upper side of the chassis (11) and forms a rotating pair with the upper side of the support disc (18), and is characterized in that: The toothed disc drive device (16) is fixed to the central position of the lower side of the chassis (11) and extends above the chassis (11) to form a meshing pair with the gear ring (1421).

2. The car seat turntable structure according to claim 1, characterized in that: A support disc holder (111) protruding from the upper surface of the chassis (11) is formed in the middle of the upper side of the chassis (11), a gear disc support basin cavity (1111) recessed downward is formed in the central area of ​​the support disc holder (111), the gear disc support basin cavity (1111) is formed with a fixed disc fixing cavity (11111) recessed in the surface of the gear disc support basin cavity (1111), a gear disc drive device clearance hole (11112) is provided at the central position of the fixed disc fixing cavity (11111), and a drive gear clearance hole (121) is provided on the fixed disc fixing disc (12) at a position corresponding to the gear disc drive device (16), which passes from the upper surface of the fixed disc fixing disc (12) to the lower surface. The fixed toothed disc support basin (13) is supported in the toothed disc support basin cavity (1111); a group of toothed disc bosses (141) are formed on the upward side surface of the toothed disc (14) and around the circumference of the toothed disc (14) at equal intervals;A group of roller baffles (1511) extending toward the center of the gear disc pressure ring cavity (151) is formed on the wall of the gear disc pressure ring cavity (151) of the gear disc pressure ring (15) and around the wall of the gear disc pressure ring cavity in an equidistant gap state. A support block (1513) is provided on both sides of each roller baffle in the group of roller baffles (1511). A roller (1512) supported on the upward side surface of the gear disc (14) together with the support block (1513) is provided on the side of each support block (1513) facing away from the roller baffle (1511). The support block (1513) and the roller (1512) and together with the roller baffle ( 1511) corresponds to between two adjacent toothed disc bosses (141) in a set of toothed disc bosses (141), a fixed disc (152) is provided in the toothed disc pressure ring cavity (151), an output shaft matching hole (1521) is provided on the fixed disc (152) and at a position corresponding to the toothed disc driving device (16), a fixed disc edge (1522) of the fixed disc (152) is tangent to the roller (1512), and the fixed disc (152) is fixed to the fixed disc fixing screw hole (122) provided on the fixed disc fixing disc (12) by fixed disc fixing screws (1523) distributed at intervals, and a roller pressure disc (1521) is also provided on the upper surface corresponding to the toothed disc pressure ring (15). 53), the roller pressure plate (153) limits the upper end surface of the roller (1512) and the support block (1513), and the roller pressure plate (153) is fixed to the fixed plate (152) by a group of roller pressure plate fixing screws (1524) arranged on the fixed plate (152) and distributed at intervals, and the driving plate (17) is extended from the bottom to the upper part of the driving plate (17) by the driving plate connecting screw (132) located on the gear plate support basin (13) through the gear plate pressure ring screw hole (154) provided on the gear plate pressure ring (15) and the driving plate screw hole (171) on the driving plate (17) at a position corresponding to the upper part of the roller pressure plate (153). The drive disc (17) is locked by a locking nut (1321) screwed on the upper end of the drive disc connecting screw (132). The central area of ​​the drive disc (17) is formed as a drive disc cavity (172); the support disc (18) is supported and fixed to the upper side of the support disc bracket (111) by screws. A bearing ring support step ring (181) is formed in the central area of ​​the support disc (18) and around the support disc (18). A bearing ring (18111) is provided on the upper surface (1811) of the bearing ring support step ring of the bearing ring support step ring (181). The central area of ​​the bearing ring support step ring (181) is the support disc cavity (182).

3. The car seat turntable structure according to claim 1, characterized in that: The chassis (11) is of rectangular structure, and the seat support connecting plate (19) is also of rectangular structure. The four corners of the seat support connecting plate (19) facing downward are rotatably fastened to the four corners of the chassis (11) facing upward.

4. The car seat turntable structure according to claim 2, characterized in that: A support disc convex ring (183) is formed on the upper edge of the support disc (18) and around the circumferential direction of the support disc (18); a support disc convex ring insertion groove (191) is formed at the position of the support disc convex ring (183) facing downward and corresponding to the support disc (18); the support disc convex ring (183) is inserted into the support disc convex ring insertion groove (191); a drive disc matching cavity (192) having the same shape as the drive disc (17) is formed in the central area of ​​the seat support connecting disc (19); the drive disc wing (173) of the drive disc (17) corresponds to the drive disc wing cavity (1921) of the drive disc matching cavity (192) slightly below; and a drive disc push screw shaft is fixed between each two adjacent drive disc wing cavities (1921). A drive disc pushing screw shaft (19221) is fixed in a longitudinal state on the drive disc pushing screw shaft fixing plate (1922). When the drive disc (17) rotates, the edge of the drive disc wing (173) supported on the drive disc pushing screw shaft (19221) pushes the drive disc pushing screw shaft (19221) to rotate the seat support connecting disc (19). The toothed disc driving device (16) corresponds to the toothed disc driving device clearance hole (11112). The toothed disc driving device (16) enters the toothed disc cavity (141) after passing through the drive gear clearance hole (121) upward and forms a meshing pair with the gear ring (1421). The top of the toothed disc driving device (16) also penetrates into the output shaft matching hole (1521).

5. The car seat turntable structure according to claim 3, characterized in that: A dynamic disc anti-flipping claw fastening plate (112) is fixed to each of the four corners on the upward side of the chassis (11) through a dynamic disc anti-flipping claw fastening plate screw (1121), and the dynamic disc anti-flipping claw fastening plate (112) is formed with an N-shaped dynamic disc anti-flipping claw fastening plate cavity (1122) with a cavity opening facing downward at one end thereof facing the support disc bracket (111); a seat support connecting plate fastening plate (193) is fixed to the four corners on the downward side of the seat support connecting plate (19), and the position of the seat support connecting plate fastening plate (193) corresponds to the dynamic disc anti-flipping claw fastening plate (112), and the end of the seat support connecting plate fastening plate (193) facing away from the drive disc matching cavity (192) is formed with a U-shaped seat support connecting plate fastening plate cavity (1931) with a cavity opening facing upward. The seat support connecting plate buckling plate (193) and the movable plate anti-flipping claw buckling plate (112) are buckled with each other, 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 buckling plate (193).

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

7. The automobile seat turntable structure according to claim 6, characterized in that: Roller pressure plate fixing screw through holes (1531) are provided on the roller pressure plate (153) at intervals corresponding to the positions of the group of roller pressure plate fixing screws (1524). After the group of roller pressure plate fixing screws (1524) pass 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 on the ends of the group of roller pressure plate fixing screws (1524). A fixed plate fixing plate wire hole (124) is provided at the central position of the fixed plate fixing plate (12), and a fixed plate wire cavity (1525) is provided at the central position of the fixed plate (152). The drive plate cavity (172) is configured as a drive plate wire cavity.

8. The automobile seat turntable structure according to claim 4, characterized in that: The toothed disc drive device (16) comprises a toothed disc drive motor (161), a toothed disc drive reduction box (162), a toothed disc drive reduction box fixing bracket (163) and a toothed disc drive gear (164). The toothed disc drive motor (161) is fixed to the toothed disc drive reduction box (162) and is in transmission cooperation with the toothed disc drive reduction box (162). The toothed disc drive reduction box (162) is fixed to the toothed disc drive reduction box fixing bracket (163) together with the toothed disc drive motor (161). The toothed disc drive reduction box output shaft (1621) of the toothed disc drive reduction box (162) faces upward and is provided with a toothed disc drive reduction box output shaft gear (16211). The toothed disc drive reduction box output shaft (1621) together with the toothed disc drive reduction box output shaft gear (16211) The gear drive device extends upward through the gear wheel drive device clearance hole (11112) and the drive gear clearance hole (121) to the top of the fixed plate fixed plate (12), and the gear wheel drive reduction box output shaft gear (16211) is meshed with the gear wheel drive gear inner ring gear (1641) of the gear wheel drive gear (164), and the upper end portion of the gear wheel drive reduction box output shaft (1621) is rotatably matched with the output shaft matching hole (1521), and the outer ring gear of the gear wheel drive gear (164) is meshed with the ring gear (1421) of the gear wheel cavity (142), and the gear wheel drive gear (164) drives the gear wheel (14) to rotate, and the gear wheel drive reduction box fixing bracket (163) is fixed to the chassis (11) at a position corresponding to the side of the fixed plate fixed cavity (11111) facing downward.

9. The automobile seat turntable structure according to claim 8, characterized in that: A toothed disc drive reduction box fixing bracket fixing screw hole (11113) is provided on the bottom wall of the fixed disc fixing cavity (11111), and a bracket fixing screw hole (125) is provided on the fixed disc fixing disc (12) at a position corresponding to the toothed disc drive reduction box fixing bracket fixing screw hole (11113). The toothed disc drive reduction box fixing bracket (163) is fixed to the chassis (11) together with the fixed disc fixing disc (12) by the bracket fixing screw, which passes through the bracket screw hole (1631) formed on the toothed disc drive reduction box fixing bracket (163), the toothed disc drive reduction box fixing bracket fixing screw hole (11113), and the bracket fixing screw hole (125) from bottom to top.

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

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