Electric turntable for car seat

Abstract

An electric turntable for a car seat includes a fixed base assembly; a rotating disk assembly, which is rotatably mounted on the fixed base assembly, including a rotating upper and lower disk; a wire take-up disk, including a wire take-up base and a positioning sleeve; a power output plate, which is arranged above the positioning sleeve, and its two ends are fixed to the rotating upper and lower disks; an output gear member, which is arranged below the middle of the power output plate and connected thereto; a stepless transmission mechanism, which is arranged in the positioning sleeve through-hole portion of the positioning sleeve and connected to the output gear member; a motor assembly, which is arranged above the rotating disk assembly, and is connected to the stepless transmission mechanism and can drive the stepless transmission mechanism to make eccentric motion; a linkage reversing mechanism, which is arranged below the stepless transmission mechanism and connected thereto, and is hinged to the fixed base assembly, and the linkage reversing mechanism is connected in coordination with the output gear member. The structure is compact, high in strength, reliable and durable, ensuring that the seat will not shake at will, improving riding comfort, realizing the regular storage of the wire harness, and ensuring stable rotation.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile parts and specifically relates to an electric turntable for automobile seats. Background Art

[0002] At present, with the continuous improvement of the intelligence level of the automobile industry and the rapid development of unmanned driving technology, the rotating seats that originally only existed in some large luxury commercial vehicles have become increasingly the focus of current intelligent car research and development; as a rotating seat that can change the sitting direction of the passengers and enrich the passengers' various sitting postures in the car, the rotating seat can realize the functions of passengers talking and entertainment, resting and sleeping, and easy entry, and is therefore becoming more and more popular. Swivel seats are generally divided into manual and electric swivel seats; manual swivel seats are quicker to adjust in rotation, but require the occupant to manually unlock the handle and rotate it by itself, which is more laborious. At the same time, the swivel mechanism of the manual swivel seat generally rotates in the form of a swivel shaft, which has a short service life and is unreliable after a person sits on it and bears weight. The swivel shaft is easily offset and damaged when it rotates. The electric swivel seat is driven by a motor for rotation adjustment, which is convenient and quick. It has become the mainstream in the current wave of vehicle intelligence. The rotation of the electric swivel seat is mostly achieved through a turntable mechanism and a motor assembly. The turntable mechanism includes a fixed plate and a moving plate that are installed together in cooperation with each other. The fixed plate is fixedly connected to the car seat track or support, and the moving plate is rotatably installed on the fixed plate, and the moving plate is fixedly connected to the car seat frame. The moving plate is driven by the motor assembly to achieve convenient rotation of the car seat.

[0003] There is no lack of technical information on the electric rotating mechanism of automobile seats in Chinese patent documents, and a few examples are: CN215204542U (electric rotating plate), CN113276734A (an electric seat rotating mechanism and automobile seat), CN213619472U (an electric rotating plate mechanism for automobile seats) and CN110626231A (an electric seat rotating mechanism), etc. The above technical documents have various advantages recorded therein, but still have the same common disadvantages: First, in the automobile seats currently using rotating mechanisms, there are more or less gaps inside the rotating mechanism, which leads to more or less gaps in the rotation direction of the seat. The gap will also be magnified by the force arm, causing the seat to shake, which not only greatly affects the riding comfort of the occupants, but also increases safety hazards; secondly, with the development of the current trend of automobile intelligence and electrification, more electrical devices will be installed in the car, and many electronic devices such as ventilation and heating parts, occupancy sensors, etc. will be installed on the car seats, which requires a large number of electronic wiring harnesses, but the existing car seat rotation mechanism is often unable to reasonably accommodate or classify these electronic wiring harnesses. During the rotation of the car seat, the rotating mechanism has the possibility of driving multiple strands of electronic wiring harnesses and making them entangled, which brings a series of subsequent problems.

[0004] In view of the above situation, it is necessary to reasonably improve the electric rotating device of the existing vehicle seat. For this reason, the applicant has made a useful design, and the technical solution to be introduced below is produced under this background. Summary of the invention

[0005] The task of the present invention is to provide a compact structure, high strength, reliable and durable stepless transmission component, which is conducive to the use of a recliner-like structure and ensures that there is no gap between the outer gear plate and the power output plate when it is engaged, thereby ensuring that the seat will not shake at will and preventing vibration to improve the comfort during riding, and is conducive to the provision of a wire take-up drum that can be used to accommodate the wire harness to achieve regular storage of the wire harness and prevent the line from being entangled, and is convenient for converting the eccentric motion of the stepless transmission component into concentric rotation within itself by setting a linkage reversing mechanism and finally achieving concentric rotation of the power output plate and the car seat to ensure smooth rotation of the electric turntable for the car seat.

[0006] The task of the present invention is accomplished in this way: an electric turntable for a car seat comprises a fixed base assembly fixedly mounted on a car bracket or a seat slide rail; a rotating disk assembly, which is fixedly and rotatably mounted on the fixed base assembly with the car seat, and the rotating disk assembly comprises a rotating lower disk and a rotating upper disk installed together; a wire take-up disk, comprising a wire take-up base and a positioning sleeve rotatably arranged on the wire take-up base, the wire take-up base is a circular disk structure and the circumferential edge of the wire take-up base is fixedly mounted on the fixed base assembly, and the positioning sleeve is hollow inside and its lower end is open, and a positioning sleeve through hole is formed at the central position of the positioning sleeve; a power output plate, which is fixedly sleeved at the upper position of the positioning sleeve, and the power output plate is extended in a state parallel to the radial direction of the rotating upper disk, and both end portions of the power output plate in the length direction are fixedly mounted with the rotating upper disk and the rotating lower disk; an output gear a gear assembly, which is arranged at a lower position in the middle of the power output plate and is connected with the power output plate; a stepless transmission mechanism, which is arranged in the positioning sleeve through-hole portion of the positioning sleeve, is positioned at a lower position in the middle part of the length direction of the power output plate, and is connected with the output gear member in a transmission manner; a motor assembly, which is arranged at an upper position of the rotating disk assembly, and is connected with the stepless transmission mechanism through a driving rod extending downward and can drive the stepless transmission mechanism to make an eccentric movement; a linkage reversing mechanism, which is arranged at a lower position of the stepless transmission mechanism and is connected with the stepless transmission mechanism in a transmission manner, the linkage reversing mechanism extends downward and is hingedly connected to the fixed base assembly, and the linkage reversing mechanism is connected with the output gear member in a transmission manner and converts the eccentric output of the stepless transmission mechanism into a concentric output through the linkage reversing mechanism and realizes the concentric rotation of the output gear member.

[0007] In a specific embodiment of the present invention, the fixed base assembly includes a fixed lower plate and a fixed upper plate combined together; the fixed lower plate has a fixed lower plate edge ring plate, a fixed lower plate oblique ring portion and a fixed lower plate connecting ring plate, and a plurality of fixed lower plate fasteners extending downward are arranged on the fixed lower plate edge ring plate, and the fixed lower plate oblique ring portion is a conical ring structure with a small upper portion and a large lower portion and is formed on the inner circumferential edge of the fixed lower plate edge ring plate, and the fixed lower plate oblique ring portion extends obliquely inwardly, and the fixed lower plate connecting ring plate is formed on the inner circumferential edge of the fixed lower plate oblique ring portion, and a plurality of through-holes are spaced apart on the fixed lower plate connecting ring plate. The fixed upper plate has a fixed lower plate connecting hole in the thickness direction; the fixed upper plate has a fixed upper plate hook plate portion, a fixed upper plate oblique ring portion and a fixed upper plate connecting ring plate, the fixed upper plate hook plate portion is a U-shaped hook plate structure with an opening facing downward and formed with a downward groove, and the fixed upper plate oblique ring portion is a conical ring structure with a larger upper portion and a smaller lower portion and is formed on the inner circumferential edge of the fixed upper plate hook plate portion, and the fixed upper plate oblique ring portion is extended and inclined inwardly, and the fixed upper plate connecting ring plate is formed on the inner circumferential edge of the fixed upper plate oblique ring portion, and a plurality of fixed upper plate connecting holes that run through its thickness direction are opened on the fixed upper plate connecting ring plate and at positions corresponding to the fixed lower plate connecting holes.

[0008] In another specific embodiment of the present invention, the rotating disk assembly includes a rotating lower disk and a rotating upper disk that are combined together, and a plurality of rotating disk fasteners are inserted on the rotating lower disk, and the rotating disk fasteners pass through the rotating lower disk and the rotating upper disk and are connected to the car seat; the rotating lower disk is provided with a rotating lower disk edge ring plate, a rotating lower disk oblique ring portion and a rotating lower disk vertical ring plate, and a plurality of rotating lower disk connecting holes are spaced apart on the rotating lower disk edge ring plate, and the rotating lower disk oblique ring portion is a conical ring structure with a larger upper portion and a smaller lower portion and is formed on the inner circumferential edge of the rotating lower disk edge ring plate, and the rotating lower disk oblique ring portion is inclined and extended inwardly and is arranged corresponding to the fixed lower disk oblique ring portion, and the rotating lower disk vertical ring plate is formed on the inner circumferential edge of the rotating lower disk oblique ring portion and extends downward; the rotating upper disk is provided with a rotating upper A disc edge ring plate, a rotating upper disc oblique ring portion and a rotating upper disc vertical ring plate, a plurality of rotating upper disc connecting holes are also opened on the rotating upper disc edge ring plate and at positions corresponding to the rotating lower disc connecting holes, and a connecting fastener passing through the rotating lower disc connecting holes is arranged in each of the plurality of rotating upper disc connecting holes, and the connecting fastener is fixedly connected to the car seat, thereby realizing the fixed connection between the rotating lower disc, the rotating upper disc and the car seat, and the rotating upper disc oblique ring portion is a conical ring structure with a small upper portion and a large lower portion and is formed on the inner circumferential edge of the rotating upper disc edge ring plate, and the rotating upper disc oblique ring portion is extended obliquely inwardly and is arranged corresponding to the fixed upper disc oblique ring portion, and the rotating upper disc vertical ring plate is formed on the inner circumferential edge of the rotating upper disc oblique ring portion and extends upward, and the rotating upper disc vertical ring plate is accommodated in the groove of the fixed upper disc hook plate portion.

[0009] In another specific embodiment of the present invention, a power output plate matching hole is formed at the central position of the power output plate body in the length direction, and a power output plate connecting seat extending downward is formed at both end portions in the length direction of the power output plate. The power output plate connecting seat is fixedly installed with the rotating lower plate and a rotating upper plate by fasteners, thereby realizing the connection and fixation of the power output plate and the rotating plate assembly.

[0010] In another specific embodiment of the present invention, the wire take-up base of the wire take-up reel is provided with a wire take-up base connecting ring plate, a wire take-up base main body ring plate and a wire take-up base vertical partition plate, the wire take-up base connecting ring plate is formed at the outer peripheral side edge position of the wire take-up base, and a plurality of wire take-up base connecting holes are formed on the wire take-up base connecting ring plate and at the position corresponding to the fixed upper disk connecting hole, and a connecting fastener passing through the fixed upper disk connecting hole and the fixed lower disk connecting hole is provided in each of the plurality of wire take-up base connecting holes, so as to realize the connection and fixation of the wire take-up base with the fixed upper disk and the fixed lower disk, and a wire take-up base step is formed at the connection between the wire take-up base connecting ring plate and the wire take-up base main body ring plate, and the wire take-up base vertical partition plate is a cylindrical plate structure and is vertically formed on the wire take-up base main body ring plate; and the positioning sleeve of the wire take-up reel also has a positioning sleeve outer edge cylinder plate and a positioning sleeve upper connecting plate, the The outer cylinder plate of the positioning sleeve is a cylindrical plate structure and the outer cylinder plate of the positioning sleeve is arranged at a position corresponding to the step of the wire taking-up base, the upper connecting plate of the positioning sleeve is formed in the upper part of the outer cylinder plate of the positioning sleeve and the positioning sleeve through hole portion is arranged at the central position of the upper connecting plate of the positioning sleeve, and a positioning sleeve inner cavity is formed inside the positioning sleeve and corresponding to the positioning sleeve through hole portion and the outer cylinder plate of the positioning sleeve, the vertical partition plate of the wire taking-up base extends into the inner cavity of the positioning sleeve, and a plurality of positioning sleeve upper connecting plate engaging feet are formed on the upper side surface of the positioning sleeve upper connecting plate, and a plurality of power output plate engaging holes are also provided on the power output plate and at positions corresponding to the plurality of positioning sleeve upper connecting plate engaging feet, and the plurality of positioning sleeve upper connecting plate engaging feet are all engaged with the corresponding power output plate engaging holes, thereby realizing the connection and fixation of the positioning sleeve and the power output plate.

[0011] In another specific embodiment of the present invention, the output gear member has an output gear member mating portion and an internal gear plate formed at the lower part of the output gear member mating portion, and the output gear member mating portion is mounted together with the mating hole of the power output plate to achieve a transmission connection between the output gear member and the power output plate, the outer peripheral side surface of the internal gear plate is formed as a smooth outer surface of the internal gear plate, and an inner gear ring is formed inside the internal gear plate, and the output gear member also includes an output gear member convex ring formed at the center position of the circle and extending downward, and a shaft sleeve is also sleeved in the output gear member convex ring.

[0012] In a further specific embodiment of the present invention, the stepless transmission mechanism includes a cam member, a transmission gear cylinder, a bushing, a pair of anti-backlash blocks and a retaining spring; the cam member has a cam disc body with a disc-shaped structure and a camshaft, the camshaft is convexly arranged at the center position of the cam disc body, the camshaft is inserted in the output gear member convex ring of the output gear member and the shaft sleeve is sleeved on the camshaft, the camshaft is also connected with the driving rod of the motor assembly, a convex baffle is convexly arranged at the edge position of the outer edge of the upper side surface of the cam disc body, and a retaining spring accommodating groove is also concave downwardly provided on the cam disc body; the transmission gear cylinder has a transmission gear cylinder body with a cylindrical structure and an outer gear disc, the upper and lower ends of the transmission gear cylinder body are open and hollow inside and form a transmission gear cylinder hollow cavity, the cam member is arranged inside the transmission gear cylinder hollow cavity, and the output The cam of the output gear member of the gear member extends into the hollow cavity of the transmission gear cylinder, and the outer gear disk is formed at the upper part of the transmission gear cylinder body, and the outer peripheral part of the outer gear disk is formed with an outer gear ring, which is differentially meshed with the inner gear ring of the output gear member, and the output gear member is placed on the outer gear disk; the bushing is snugly arranged at the upper position of the inner peripheral side wall of the hollow cavity in the transmission gear cylinder; a pair of the anti-backlash blocks are symmetrically arranged on both sides of the convex baffle along the outer circumferential direction of the cam disk body of the cam member, and the outer peripheral side surfaces of the pair of anti-backlash blocks arranged between the cam of the output gear member and the bushing are in contact with the inner side wall of the bushing; and the retaining spring is received in the retaining spring accommodating groove of the cam member, and two retaining spring feet are formed at the two open ends of the retaining spring and at the positions corresponding to the middle of the two anti-backlash blocks, and the two retaining spring feet protrude out of the retaining spring accommodating groove and are respectively hooked on the opposite end portions of the two anti-backlash blocks.

[0013] In a further specific embodiment of the present invention, one end portion of the two anti-backlash blocks is formed with an anti-backlash block stop surface, and the other end portion of the two anti-backlash blocks is formed with a retaining spring foot matching groove, the two retaining spring feet are fitted and installed in their respective corresponding retaining spring foot matching grooves, and the inner side surface of the anti-backlash block is formed as an anti-backlash surface matching the outer side wall of the output gear member convex ring, and the outer side surface of the anti-backlash block is formed as an outer working surface of the anti-backlash block matching the inner side wall of the bushing, and the anti-backlash surface and the outer working surface of the anti-backlash block are both inclined wedge-shaped profiles and are eccentrically designed between the two.

[0014] In a further specific embodiment of the present invention, the linkage reversing mechanism includes a transmission connecting plate, a cross transmission plate, a transition rotating plate, a three-fork arm plate, three connecting rods and a concentric guard ring; the transmission connecting plate is a circular plate-like structure and is arranged at a lower position of the transmission gear cylinder, and a plurality of transmission connecting plate convex circles are convexly arranged on the upper side surface of the transmission connecting plate, and the plurality of transmission connecting plate convex circles penetrate into the transmission gear cylinder cavity of the transmission gear cylinder and contact each other with the inner side wall of the cavity of the transmission gear cylinder, and a plurality of transmission connecting plate convex circles are convexly arranged on the lower side surface of the transmission connecting plate A pair of transmission connecting plate matching blocks are formed; the cross transmission plate is in the form of a cross plate structure and is composed of two vertically arranged long strip plates, and a cross transmission plate matching groove is provided at the four end positions of the cross transmission plate, and the two transmission connecting plate matching blocks are respectively matched and installed in the cross transmission plate matching grooves at the two ends of a long strip plate of the cross transmission plate; the transition rotating plate is in the form of a disc structure, the transition rotating plate is arranged at the lower position of the cross transmission plate, and a pair of transition rotating plate matching blocks are convexly provided on the upper side surface of the transition rotating plate, and the pair of transition rotating plate matching blocks are respectively matched The connecting rods are mounted in the matching grooves of the cross transmission plate at both ends of another long strip plate of the cross transmission plate, and a plurality of transition rotating plate connecting holes penetrating the thickness direction of the transition rotating plate are also provided on the transition rotating plate; the three-fork arm plate is arranged at a position below the transition rotating plate, and a plurality of three-fork arm plate connecting holes are provided on the three-fork arm plate and at positions corresponding to the transition rotating plate connecting holes, and the plurality of three-fork arm plate connecting holes are all provided with connecting fasteners passing through the transition rotating plate connecting holes, thereby realizing the connection between the three-fork arm plate and the transition rotating plate; one end of the three connecting rods in the length direction is respectively hinged to the three outer end parts of the three-fork arm plate The concentric guard ring is in the shape of a cylindrical structure and is hollow inside. The lower part of the concentric guard ring is sleeved on the outer peripheral part of the transition rotating plate, and the upper part of the concentric guard ring is sleeved on the outer surface of the inner gear plate of the inner gear plate to realize the positioning of both the transition rotating plate and the inner gear plate. A concentric guard ring folding edge extending inward is also formed at the lower end of the concentric guard ring. The transition rotating plate and the three-fork arm plate are respectively installed at the upper and lower sides of the concentric guard ring folding edge.

[0015] In yet another specific embodiment of the present invention, the cam disc body of the cam member and the camshaft form an integral structure, and the cam member is an integrally formed member.

[0016] After adopting the above structure, the present invention has the following technical effects: first, by adopting a stepless transmission mechanism of a recliner-like structure and adopting a structure in which a pair of anti-backlash blocks and a retaining spring are mutually locked, it can be ensured that there is no gap between the outer gear disk of the transmission gear cylinder and the power output plate when the outer gear disk is engaged with the power output plate, thereby ensuring that the seat will not shake at will and ensuring the comfort during riding. In addition, the structure of the pair of anti-backlash blocks and the retaining spring is simple, which not only reduces the manufacturing difficulty, but also greatly reduces the overall internal volume, which helps to reduce the production cost. In addition, since the inner and outer sides of the anti-backlash blocks are both composed of inclined wedge-shaped profiles to form relative wedge-shaped The first aspect has the function of eliminating gaps during the locking action to ensure smooth rotation; secondly, by providing a take-up reel that can be used to accommodate the wiring harness, the structure is compact, and the take-up base and the positioning sleeve that are fitted together can be used to neatly store the wiring harness and prevent the wiring from being entangled; in addition, by providing a linkage reversing mechanism, the eccentric motion of the transmission gear barrel of the stepless transmission mechanism is converted into the concentric rotation of the transition rotating plate, the concentric guard ring and the three-fork arm plate within itself, and finally the concentric rotation of the power output plate is realized, thereby finally making the concentric rotation of the car seat and ensuring smooth rotation during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0018] Figure 2 It is a three-dimensional structural exploded view of an embodiment of the present invention.

[0019] Figure 3 It is a structural cross-sectional view of an embodiment of the present invention.

[0020] Figure 4 It is a three-dimensional structural exploded view of the continuously variable transmission mechanism and the linkage reversing mechanism in the present invention.

[0021] In the figure: 1. Fixed base assembly, 11. Fixed lower plate, 111. Fixed lower plate edge ring plate, 112. Fixed lower plate oblique ring portion, 113. Fixed lower plate connecting ring plate, 114. Fixed lower plate fastener, 115. Fixed lower plate connecting hole, 12. Fixed upper plate, 121. Fixed upper plate hook plate portion, 122. Fixed upper plate oblique ring portion, 123. Fixed upper plate connecting ring plate, 124. Fixed upper plate connecting hole; 2. Rotating plate assembly, 21. Rotating lower plate, 211. Rotating lower plate edge ring plate, 212. Rotating lower plate oblique ring portion, 213. Rotating lower plate vertical ring plate, 214. Rotating lower plate connecting hole, 22. Rotating upper plate, 221 . Rotating upper disk edge ring plate, 222. Rotating upper disk oblique ring portion, 223. Rotating upper disk vertical ring plate, 224. Rotating upper disk connecting hole, 23. Rotating disk fastener; 3. Take-up disk, 31. Take-up base, 311. Take-up base connecting ring plate, 312. Take-up base main ring plate, 313. Take-up base vertical partition, 314. Take-up base connecting hole, 315. Take-up base step, 32. Positioning sleeve, 321. Positioning sleeve through hole, 322. Positioning sleeve outer edge cylinder plate, 323. Positioning sleeve upper connecting plate, 3231. Positioning sleeve upper connecting plate fitting foot, 324. Positioning sleeve inner cavity; 4. Power output plate, 4 1. Power output plate matching hole, 42. Power output plate connecting seat, 43. Power output plate fitting hole; 5. Output gear member, 51. Output gear member matching portion, 52. Internal gear plate, 521. External surface of internal gear plate, 522. Internal gear ring, 53. Output gear member convex ring, 54. Shaft sleeve; 6. Stepless transmission mechanism, 61. Cam member, 611. Cam plate body, 612. Camshaft, 613. Convex baffle, 614. Circlip accommodating groove, 62. Transmission gear cylinder, 621. Transmission gear cylinder body, 622. External gear plate, 6221. External gear ring, 623. Transmission gear cylinder hollow cavity, 63. Bushing, 64. Anti-backlash block , 641. anti-backlash block stop surface, 642. retaining spring foot matching groove, 643. anti-backlash surface, 644. anti-backlash block outer working surface, 65. retaining spring, 651. retaining spring foot; 7. motor assembly, 71. driving rod; 8. linkage reversing mechanism, 81. transmission connecting plate, 811. transmission connecting plate convex circle, 812. transmission connecting plate matching block, 82. cross transmission plate, 821. cross transmission plate matching groove, 83. transition rotating plate, 831. transition rotating plate matching block, 832. transition rotating plate connecting hole, 84. three-fork arm plate, 841. three-fork arm plate connecting hole, 85. connecting rod, 86. concentric guard ring, 861. concentric guard ring folding edge. DETAILED DESCRIPTION

[0022] In order to more clearly understand the technical essence and beneficial effects of the present invention, it will be described in detail in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0023] In the following description, all concepts related to up, down, left, right, front and back directions or orientations are based on Figure 1 The position state is taken as a reference, and thus it cannot be understood as a special limitation on the technical solution provided by the present invention.

[0024] See also Figures 1 to 4, shows an electric turntable for a car seat, including a fixed base assembly 1 fixedly mounted on a car bracket or a seat slide rail; shows a rotating disk assembly 2, which is fixedly and rotatably mounted on the aforementioned fixed base assembly 1 with the car seat, and the rotating disk assembly 2 includes a rotating lower disk 21 and a rotating upper disk 22 installed together; shows a wire take-up disk 3, including a wire take-up base 31 and a positioning sleeve 32 rotatably arranged on the wire take-up base 31, the aforementioned wire take-up base 31 is a circular disk structure and the circumferential edge of the wire take-up base 31 is fixedly mounted on the aforementioned The fixed base assembly 1 is provided, and the interior of the aforementioned positioning sleeve 32 is hollow and its lower end is open, and a positioning sleeve through hole portion 321 is formed at the central position of the positioning sleeve 32, and the space between the wire-collecting base 31 and the positioning sleeve 32 can be used to accommodate the wire harness; a power output plate 4 is shown, which is fixedly sleeved at the upper position of the aforementioned positioning sleeve 32, and the power output plate 4 is extended in a state parallel to the radial direction of the aforementioned rotating upper disk 22, and the two end portions of the power output plate 4 in the length direction are fixedly installed with the rotating upper disk 22 and the rotating lower disk 21 ; an output gear member 5 is shown, which is arranged at a lower position in the middle of the aforementioned power output plate 4 and is matched with the power output plate 4; a stepless transmission mechanism 6 is shown, which is similar to the structure of a car seat adjuster and is arranged in the positioning sleeve through hole portion 321 of the aforementioned positioning sleeve 32. The stepless transmission mechanism 6 is positioned and arranged at a lower position in the middle part of the length direction of the aforementioned power output plate 4, and the stepless transmission mechanism 6 is connected to the aforementioned output gear member 5 in transmission; a motor assembly 7 is shown, which is arranged at an upper position of the aforementioned rotating disk assembly 2, and the motor assembly 7 is connected through A driving rod 71 extending downward is connected to the aforementioned continuously variable transmission mechanism 6 and can drive the continuously variable transmission mechanism 6 to perform eccentric movement; a linkage reversing mechanism 8 is shown, which is arranged at a lower position of the aforementioned continuously variable transmission mechanism 6 and is connected to the continuously variable transmission mechanism 6, and the linkage reversing mechanism 8 extends downward and is hingedly connected to the aforementioned fixed base assembly 1, and the linkage reversing mechanism 8 is connected to the output gear member 5 and converts the eccentric output of the aforementioned continuously variable transmission mechanism 6 into a concentric output through the linkage reversing mechanism 8 and realizes the concentric rotation of the aforementioned output gear member 5.

[0025] In the present embodiment, the fixed base assembly 1 comprises a fixed lower plate 11 and a fixed upper plate 12 which are combined together; the fixed lower plate 11 comprises a fixed lower plate edge ring plate 111, a fixed lower plate oblique ring portion 112 and a fixed lower plate connecting ring plate 113, a plurality of fixed lower plate fasteners 114 extending downward are arranged on the fixed lower plate edge ring plate 111, and the fixed lower plate oblique ring portion 112 is a conical ring structure which is larger at the top and smaller at the bottom and is formed on the inner circumferential edge of the fixed lower plate edge ring plate 111, and the fixed lower plate oblique ring portion 112 is extended obliquely inwardly, and the fixed lower plate connecting ring plate 113 is formed on the inner circumferential edge of the fixed lower plate oblique ring portion 112, and a plurality of fixing members 114 which penetrate the thickness of the fixed lower plate connecting ring plate 113 are arranged at intervals on the fixed lower plate connecting ring plate 113. The fixed lower plate connecting hole 115 is directed toward the fixed upper plate 12; the fixed upper plate 12 is provided with a fixed upper plate hook plate portion 121, a fixed upper plate bevel ring portion 122 and a fixed upper plate connecting ring plate 123, the fixed upper plate hook plate portion 121 is a U-shaped hook plate structure with an opening facing downward and formed with a downward groove, and the fixed upper plate bevel ring portion 122 is a conical ring structure with a small upper portion and a large lower portion and is formed on the inner circumferential edge of the fixed upper plate hook plate portion 121, and the fixed upper plate bevel ring portion 122 is extended and inclined toward the inside, the fixed upper plate connecting ring plate 123 is formed on the inner circumferential edge of the fixed upper plate bevel ring portion 122, and a plurality of fixed upper plate connecting holes 124 are provided on the fixed upper plate connecting ring plate 123 and at positions corresponding to the fixed lower plate connecting holes 115, which run through the thickness direction thereof.

[0026] Furthermore, the aforementioned rotating disk assembly 2 includes a rotating lower disk 21 and a rotating upper disk 22 which are combined together, and a plurality of rotating disk fasteners 23 are provided on the aforementioned rotating lower disk 21, and the rotating disk fasteners 23 pass through the aforementioned rotating lower disk 21 and the rotating upper disk 22 and are connected to the car seat; the aforementioned rotating lower disk 21 has a rotating lower disk edge ring plate 211, a rotating lower disk oblique ring portion 212 and a rotating lower disk vertical ring plate 213, and a plurality of rotating lower disk edge ring plates 211 are provided at intervals. The rotating lower plate has a connecting hole 214, and the rotating lower plate oblique ring portion 212 is a conical ring structure with a small upper portion and a large lower portion and is formed on the inner circumferential edge of the rotating lower plate edge ring plate 211, and the rotating lower plate oblique ring portion 212 is inclined and extends inwardly and is arranged corresponding to the fixed lower plate oblique ring portion 112, and the rotating lower plate vertical ring plate 213 is formed on the inner circumferential edge of the rotating lower plate oblique ring portion 212 and extends downward; the rotating upper plate 22 has a rotating upper plate edge ring plate 221, a rotating upper plate oblique ring portion 222 and a rotating upper plate vertical ring plate 223, a plurality of rotating upper plate connecting holes 224 are also provided on the aforementioned rotating upper plate edge ring plate 221 and at positions corresponding to the aforementioned rotating lower plate connecting holes 214, and a connecting fastener passing through the rotating lower plate connecting holes 214 is provided in each of the plurality of rotating upper plate connecting holes 224, and the connecting fastener is fixedly connected to the car seat, thereby realizing the fixed connection between the rotating lower plate 21, the rotating upper plate 22 and the car seat, The aforementioned rotating upper plate bevel ring portion 222 is a conical ring structure that is larger at the top and smaller at the bottom and is formed on the inner circumferential edge of the rotating upper plate edge ring plate 221, and the rotating upper plate bevel ring portion 222 is inclined and extends inwardly and is arranged corresponding to the aforementioned fixed upper plate bevel ring portion 122, while the aforementioned rotating upper plate vertical ring plate 223 is formed on the inner circumferential edge of the rotating upper plate bevel ring portion 222 and extends upward, and the rotating upper plate vertical ring plate 223 is accommodated in the groove of the aforementioned fixed upper plate hook plate portion 121.

[0027] Please continue to see Figures 1 to 3 A power output plate matching hole 41 is formed at the central position of the length direction of the power output plate 4 body, and a power output plate connecting seat 42 extending downward is formed at both end portions in the length direction of the power output plate 4. The power output plate connecting seat 42 is fixedly installed together with the aforementioned rotating lower plate 21 and a rotating upper plate 22 by fasteners to achieve the connection and fixation of the power output plate 4 and the rotating plate assembly 2.

[0028] Furthermore, the wire take-up base 31 of the aforementioned wire take-up reel 3 is provided with a wire take-up base connecting ring plate 311, a wire take-up base main body ring plate 312 and a wire take-up base vertical partition plate 313, the aforementioned wire take-up base connecting ring plate 311 is formed at the outer peripheral side edge position of the wire take-up base 31, and a plurality of wire take-up base connecting holes 314 are formed on the wire take-up base connecting ring plate 311 and at the position corresponding to the aforementioned fixed upper disk connecting hole 124, and a plurality of wire take-up base connecting holes 314 are each provided with a hole that passes through the aforementioned fixed upper disk connecting hole 124 and the fixed lower disk connecting hole 11 5 connecting fasteners to achieve the connection and fixation of the take-up base 31 with the fixed upper disc 12 and the fixed lower disc 11, a take-up base step 315 is formed at the connection between the aforementioned take-up base connecting ring plate 311 and the take-up base main body ring plate 312, the aforementioned take-up base vertical partition plate 313 is a cylindrical plate structure and is vertically formed on the aforementioned take-up base main body ring plate 312, and the aforementioned take-up base main body ring plate 312 is also provided with a plurality of clearance holes for the wire harness to pass through; and the positioning sleeve 32 of the aforementioned take-up reel 3 also has a positioning sleeve outer edge cylinder plate 322 and a positioning The sleeve upper connecting plate 323, the outer edge cylinder plate 322 of the positioning sleeve is a cylindrical plate structure and the outer edge cylinder plate 322 of the positioning sleeve is arranged at a position corresponding to the line take-up base step 315, the aforementioned positioning sleeve upper connecting plate 323 is formed at the upper part of the outer edge cylinder plate 322 of the positioning sleeve and the aforementioned positioning sleeve through hole portion 321 is arranged at the central position of the positioning sleeve upper connecting plate 323, and a positioning sleeve inner cavity 324 is formed inside the positioning sleeve 32 and corresponding to the aforementioned positioning sleeve through hole portion 321 and the outer edge cylinder plate 322 of the positioning sleeve, the aforementioned The vertical partition 313 of the wire-reeling base extends into the inner cavity 324 of the positioning sleeve, and a plurality of positioning sleeve upper connecting plate engaging feet 3231 are formed on the upper surface of the aforementioned positioning sleeve upper connecting plate 323. A plurality of power output plate engaging holes 43 are also provided on the aforementioned power output plate 4 at positions corresponding to the plurality of positioning sleeve upper connecting plate engaging feet 3231. The plurality of positioning sleeve upper connecting plate engaging feet 3231 are all engaged with their respective corresponding power output plate engaging holes 43, thereby realizing the connection and fixation between the positioning sleeve 32 and the power output plate 4.

[0029] Please continue to see Figures 1 to 3 Please combine Figure 4The output gear member 5 has an output gear member mating portion 51 and an inner gear plate 52 formed at the lower part of the output gear member mating portion 51. The output gear member mating portion 51 is mounted together with the power output plate mating hole 41, thereby realizing the transmission connection between the output gear member 5 and the power output plate 4. The outer peripheral side surface of the inner gear plate 52 is formed as a smooth inner gear plate outer surface 521, and an inner gear ring 522 is formed inside the inner gear plate 52. The output gear member 5 also includes an output gear member convex ring 53 formed at the center position of the circle and extending downward, and a shaft sleeve 54 is also sleeved in the output gear member convex ring 53.

[0030] In this embodiment, the stepless transmission mechanism 6 includes a cam member 61, a transmission gear cylinder 62, a bushing 63, a pair of backlash elimination blocks 64 and a retaining spring 65; the cam member 61 has a cam disc body 611 with a disc-shaped structure and a cam shaft 612, the cam shaft 612 is convexly arranged at the center of the cam disc body 611, the cam shaft 612 is inserted into the output gear member convex ring 53 of the output gear member 5 and the shaft sleeve 54 is sleeved on the cam shaft 612, and the cam shaft 612 is also connected to the driving rod 71 of the motor assembly 7. The cam plate body 611 is connected together with a convex baffle 613 convexly provided at the outer edge of the upper side surface of the cam plate body 611, and a retaining spring receiving groove 614 is concavely provided downwardly on the cam plate body 611; the transmission gear cylinder 62 comprises a transmission gear cylinder body 621 of cylindrical structure and an outer gear plate 622, the upper and lower ends of the transmission gear cylinder body 621 are open and hollow inside to form a transmission gear cylinder hollow cavity 623, the cam member 61 is arranged inside the transmission gear cylinder hollow cavity 623, The output gear member convex ring 53 of the output gear member 5 is inserted into the hollow cavity 623 of the transmission gear cylinder, and the outer gear plate 622 is formed on the upper part of the transmission gear cylinder body 621, and the outer peripheral part of the outer gear plate 622 is formed with an outer gear ring 6221, and the outer gear ring 6221 is differentially meshed with the inner gear ring 522 of the output gear member 5; the bushing 63 is fittedly arranged at the upper position of the inner peripheral side wall of the hollow cavity 623 of the transmission gear cylinder; a pair of the aforementioned anti-backlash blocks 64 are arranged along the outer side of the cam plate body 611 of the cam member 61. The pair of clearance-eliminating blocks 64 are symmetrically arranged on both sides of the convex baffle 613 in the circumferential direction, and the outer circumferential side surfaces of the pair of clearance-eliminating blocks 64 arranged between the convex ring 53 of the output gear member and the bushing 63 are in contact with the inner wall of the bushing 63; the aforementioned retaining spring 65 is received in the retaining spring accommodating groove 614 of the aforementioned cam member 61, and two retaining spring feet 651 are formed at the two open ends of the retaining spring 65 and at the positions corresponding to the middle of the two clearance-eliminating blocks 64, and the two retaining spring feet 651 protrude out of the aforementioned retaining spring accommodating groove 614 and are respectively hooked on the opposite end portions of the two clearance-eliminating blocks 64.

[0031] Furthermore, one end portion of the two aforementioned anti-backlash blocks 64 is formed with a backlash block stop surface 641, and the other end portion of the two anti-backlash blocks 64 is formed with a retaining spring foot matching groove 642, the two aforementioned retaining spring feet 651 are fitted and installed in their respective corresponding retaining spring foot matching grooves 642, and the inner side surface of the anti-backlash block 64 is formed as an anti-backlash surface 643 matching the outer side wall of the aforementioned output gear member convex ring 53, and the outer side surface of the anti-backlash block 64 is formed as an anti-backlash block outer working surface 644 matching the inner side wall of the aforementioned bushing 63, and the aforementioned anti-backlash surface 643 and the anti-backlash block outer working surface 644 are both inclined wedge-shaped profiles and are eccentrically designed between the two.

[0032] In the present embodiment, the linkage reversing mechanism 8 comprises a transmission connecting plate 81, a cross transmission plate 82, a transition rotating plate 83, a three-fork arm plate 84, three connecting rods 85 and a concentric retaining ring 86; the transmission connecting plate 81 is a circular plate structure and is arranged at a lower position of the transmission gear cylinder 62, and a plurality of transmission connecting plate convex circles 811 are convexly arranged on the upper side surface of the transmission connecting plate 81, and the plurality of transmission connecting plate convex circles 811 penetrate into the transmission gear cylinder cavity 623 of the transmission gear cylinder 62 and contact each other with the inner side wall of the transmission gear cylinder cavity 623, and a pair of transmission connecting plate convex circles 811 are convexly arranged on the lower side surface of the transmission connecting plate 81. The movable connecting plate matching block 812; the aforementioned cross transmission plate 82 is a cross plate structure and is composed of two vertically arranged long strip plates, and a cross transmission plate matching groove 821 is provided at the four end positions of the cross transmission plate 82, and the two aforementioned transmission connecting plate matching blocks 812 are respectively matched and installed in the cross transmission plate matching grooves 821 at both ends of a long strip plate of the aforementioned cross transmission plate 82; the aforementioned transition rotating plate 83 is a disc-shaped structure, and the transition rotating plate 83 is arranged at a lower position of the aforementioned cross transmission plate 82, and a pair of transition rotating plate matching blocks 831 are convexly provided on the upper side surface of the transition rotating plate 83, and the pair of transition rotating plate matching blocks 831 are respectively matched and installed in the aforementioned cross The cross transmission plate matching grooves 821 at both ends of the other long strip plate of the transmission plate 82, and a plurality of transition rotating plate connecting holes 832 penetrating the thickness direction of the transition rotating plate 83 are also provided on the transition rotating plate 83; the aforementioned three-pronged arm plate 84 is arranged at a lower position of the aforementioned transition rotating plate 83, and a plurality of three-pronged arm plate connecting holes 841 are provided on the three-pronged arm plate 84 and at positions corresponding to the aforementioned transition rotating plate connecting holes 832, and connecting fasteners passing through the transition rotating plate connecting holes 832 are provided in the plurality of three-pronged arm plate connecting holes 841 to realize the connection between the three-pronged arm plate 84 and the transition rotating plate 83; one end of the three aforementioned connecting rods 85 in the length direction is respectively hinged at the three outer end positions of the three-pronged arm plate 84, and the three The other end of each connecting rod 85 in the length direction is connected to the aforementioned fixed lower plate edge ring plate 111 and the fixed upper plate hook plate 121; the aforementioned concentric guard ring 86 is a cylindrical structure with a hollow interior, the lower portion of the aforementioned concentric guard ring 86 is sleeved on the outer peripheral side of the aforementioned transition rotating plate 83, and the upper portion of the concentric guard ring 86 is fixedly connected to the inner gear plate outer surface 521 of the aforementioned inner gear plate 52 and realizes the positioning of both the transition rotating plate 83 and the inner gear plate 52, and a concentric guard ring folded edge 861 extending toward the inside is also formed at the lower end of the concentric guard ring 86, and the aforementioned transition rotating plate 83 and the three-fork arm plate 84 are respectively installed at the upper and lower sides of the concentric guard ring folded edge 861.

[0033] Preferably, the cam disc body 611 and the cam shaft 612 of the cam member 61 are formed into an integral structure, and the cam member 61 is an integrally formed member.

[0034] See also Figures 1 to 4 The applicant briefly describes the working principle of the technical solution provided by the present invention: the fixed base assembly 1 is fixedly installed on the bottom frame of the car or the seat slide rail, and the aforementioned rotating disk assembly 2 is installed together with the car seat. Under normal circumstances, when the motor assembly 7 is not working, that is, when no external force acts on the cam member 61 of the continuously variable transmission mechanism 6, the retaining spring 65 inside the continuously variable transmission mechanism 6 applies an outward tension to the anti-backlash block 64, and the anti-backlash block 64 applies an outward force to the bushing 63 and the transmission gear cylinder 62, so that there is no gap between the transmission gear cylinder 62 and the output gear member 5, ensuring the tightness of the meshing between the two, and ensuring that the driver and passengers sitting on the seat will not shake when the car is driving, ensuring the riding comfort; when the passengers need to adjust the overall horizontal angle of the seat to rotate, first, the driving motor of the motor assembly 7 is operated through the external control component, and the output synchronization rod of the driving motor drives the cam member 61 to rotate, and one of the pair of anti-backlash blocks 64 is in the cam member 61 The convex baffle plate 613 starts to rotate under the drive of the convex baffle plate 613, and the retaining spring 65 is compressed under the action of the clearance eliminating block 64 and drives the other clearance eliminating block 64 to rotate, so that the two clearance eliminating blocks 64 and the retaining spring 65 are finally rotated in the same direction, and further drive the transmission gear barrel 62 to rotate eccentrically inside the internal gear plate 52 of the output gear member 5. Since the transmission connecting plate convex circle 811 on the transmission connecting plate 81 of the linkage reversing mechanism 8 penetrates into the transmission gear barrel 62 and touches its inner wall, the transmission connecting plate 81 is driven to rotate regularly during the movement of the transmission gear barrel 62. The transmission connecting plate 81 drives the cross transmission plate 82 to move and realizes the concentric rotation of the transition rotating plate 83, the concentric retaining ring 86 and the three-fork arm plate 84 relative to the aforementioned fixed lower plate 11, and finally changes the movement mode of the power output plate 4 into concentric rotation. Since the output gear member 5 is connected to the rotating disk assembly 2 through the power output plate 4, the rotating disk assembly 2 rotates concentrically and realizes the concentric rotation of the car seat.

[0035] 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 stated by the applicant in the technical effect column above.

Claims

1. An electric turntable for a car seat, characterized in that: The invention comprises a fixed base assembly (1) fixedly mounted on a vehicle support or a seat slide rail; a rotating disk assembly (2) fixedly mounted on the fixed base assembly (1) with the vehicle seat and rotatably mounted thereon, and the rotating disk assembly (2) comprises a rotating lower disk (21) and a rotating upper disk (22) mounted thereon; a wire take-up disk (3) comprising a wire take-up base (31) and a positioning sleeve (32) rotatably arranged on the wire take-up base (31), the wire take-up base (31) being of a circular disk structure and the circumferential edge of the wire take-up base (31) being fixedly mounted on the fixed base. The seat assembly (1) is provided with a positioning sleeve (32) having a hollow interior and an open lower end, and a positioning sleeve through hole (321) is formed at a central position of the positioning sleeve (32); a power output plate (4) is fixedly sleeved at an upper position of the positioning sleeve (32), and the power output plate (4) is extended in a state parallel to the radial direction of the rotating upper plate (22), and both ends of the power output plate (4) in the length direction are fixedly installed together with the rotating upper plate (22) and the rotating lower plate (21); an output gear member (5) is arranged on the power output plate (4) The output plate (4) is located at a lower middle position and is in mating connection with the power output plate (4); a stepless transmission mechanism (6) is arranged in a positioning sleeve through hole (321) of the positioning sleeve (32), the stepless transmission mechanism (6) is positioned at a lower middle position of the power output plate (4) in the length direction, and the stepless transmission mechanism (6) is in transmission connection with the output gear member (5); a motor assembly (7) is arranged at an upper position of the rotating disk assembly (2), and the motor assembly (7) is connected to the output gear member (5) through a driving rod (71) extending downward. The continuously variable transmission mechanism (6) is in transmission connection with the continuously variable transmission mechanism (6) and is capable of driving the continuously variable transmission mechanism (6) to make eccentric motion; a linkage reversing mechanism (8) is arranged at a lower position of the continuously variable transmission mechanism (6) and is in transmission connection with the continuously variable transmission mechanism (6); the linkage reversing mechanism (8) extends downward and is hingedly connected to the fixed base assembly (1); the linkage reversing mechanism (8) is cooperatively connected with the output gear member (5) and converts the eccentric output of the continuously variable transmission mechanism (6) into a concentric output through the linkage reversing mechanism (8) and realizes the concentric rotation of the output gear member (5).

2. The electric turntable for a car seat according to claim 1, characterized in that The fixed base assembly (1) comprises a fixed lower plate (11) and a fixed upper plate (12) which are combined together; the fixed lower plate (11) comprises a fixed lower plate edge ring plate (111), a fixed lower plate oblique ring portion (112) and a fixed lower plate connecting ring plate (113); a plurality of fixed lower plate fasteners (114) extending downward are arranged on the fixed lower plate edge ring plate (111); the fixed lower plate oblique ring portion (112) is a conical ring structure with a small upper portion and a large lower portion and is formed on the inner circumferential edge of the fixed lower plate edge ring plate (111); the fixed lower plate oblique ring portion (112) is extended obliquely inward; the fixed lower plate connecting ring plate (113) is formed on the inner circumferential edge of the fixed lower plate oblique ring portion (112); and a plurality of fixed lower plate fasteners (114) extending in the thickness direction of the fixed lower plate connecting ring plate (113) are spaced apart on the fixed lower plate connecting ring plate (113). The fixed lower plate connecting hole (115); the fixed upper plate (12) is provided with a fixed upper plate hook plate portion (121), a fixed upper plate bevel ring portion (122) and a fixed upper plate connecting ring plate (123); the fixed upper plate hook plate portion (121) is a U-shaped hook plate structure with an opening facing downward and a groove facing downward, and the fixed upper plate bevel ring portion (122) is a conical ring structure with a larger upper portion and a smaller lower portion and is formed on the inner circumferential edge of the fixed upper plate hook plate portion (121), and the fixed upper plate bevel ring portion (122) is inclined and extends inward, and the fixed upper plate connecting ring plate (123) is formed on the inner circumferential edge of the fixed upper plate bevel ring portion (122), and a plurality of fixed upper plate connecting holes (124) penetrating the thickness direction of the fixed upper plate connecting ring plate (123) are opened at positions corresponding to the fixed lower plate connecting hole (115).

3. The electric turntable for a car seat according to claim 2, characterized in that The rotating disk assembly (2) comprises a rotating lower disk (21) and a rotating upper disk (22) which are combined together. A plurality of rotating disk fasteners (23) are provided on the rotating lower disk (21). The rotating disk fasteners (23) pass through the rotating lower disk (21) and the rotating upper disk (22) and are connected to the car seat. The rotating lower disk (21) comprises a rotating lower disk edge ring plate (211), a rotating lower disk oblique ring portion (212) and a rotating lower disk vertical ring plate (213), which are spaced apart on the rotating lower disk edge ring plate (211). A plurality of rotating lower plate connection holes (214) are provided, and the rotating lower plate oblique ring portion (212) is a conical ring structure with a larger upper portion and a smaller lower portion and is formed on the inner circumferential edge of the rotating lower plate edge ring plate (211), and the rotating lower plate oblique ring portion (212) is inclined and extends inward and is arranged corresponding to the fixed lower plate oblique ring portion (112), and the rotating lower plate vertical ring plate (213) is formed on the inner circumferential edge of the rotating lower plate oblique ring portion (212) and extends downward; the rotating upper plate (22) is provided with a rotating upper plate edge ring plate (221), a rotating upper plate oblique ring portion (222) and a rotating upper plate vertical ring plate (223), a plurality of rotating upper plate connecting holes (224) are also provided on the rotating upper plate edge ring plate (221) and at positions corresponding to the rotating lower plate connecting holes (214), and a connecting fastener passing through the rotating lower plate connecting holes (214) is provided in each of the plurality of rotating upper plate connecting holes (224), and the connecting fastener is fixedly connected to the car seat, thereby achieving the fixing of the rotating lower plate (21), the rotating upper plate (22) and the car seat. The rotating upper plate oblique ring portion (222) is a conical ring structure that is smaller at the top and larger at the bottom and is formed on the inner circumferential edge of the rotating upper plate edge ring plate (221), and the rotating upper plate oblique ring portion (222) is inclined and extends inward and is arranged corresponding to the fixed upper plate oblique ring portion (122), and the rotating upper plate vertical ring plate (223) is formed on the inner circumferential edge of the rotating upper plate oblique ring portion (222) and extends upward, and the rotating upper plate vertical ring plate (223) is accommodated in the groove of the fixed upper plate hook plate portion (121).

4. The electric turntable for a car seat according to claim 3, characterized in that A power output plate matching hole (41) is formed at the central position of the power output plate (4) body in the length direction, and a power output plate connecting seat (42) extending downward is formed at both end portions in the length direction of the power output plate (4). The power output plate connecting seat (42) is fixedly mounted together with the rotating lower plate (21) and a rotating upper plate (22) by fasteners, thereby realizing the connection and fixation of the power output plate (4) and the rotating plate assembly (2).

5. The electric turntable for a car seat according to claim 2, characterized in that The wire take-up base (31) of the wire take-up reel (3) comprises a wire take-up base connecting ring plate (311), a wire take-up base main body ring plate (312) and a wire take-up base vertical partition plate (313); the wire take-up base connecting ring plate (311) is formed at the outer peripheral side edge position of the wire take-up base (31), and a plurality of wire take-up base connecting holes (314) are formed on the wire take-up base connecting ring plate (311) and at positions corresponding to the fixed upper disk connecting holes (124); each of the plurality of wire take-up base connecting holes (314) is provided with a connecting hole that passes through the fixed upper disk connecting hole (124) and connects to the fixed lower disk. The connecting fastener of the connecting hole (115) is used to connect and fix the wire take-up base (31) with the fixed upper disk (12) and the fixed lower disk (11). A wire take-up base step (315) is formed at the connection between the wire take-up base connecting ring plate (311) and the wire take-up base main body ring plate (312). The wire take-up base vertical partition plate (313) is a cylindrical plate structure and is vertically formed on the wire take-up base main body ring plate (312). The positioning sleeve (32) of the wire take-up disk (3) also has a positioning sleeve outer edge cylinder plate (322) and a positioning sleeve upper connecting plate (323). The positioning sleeve The outer edge cylinder plate (322) of the cylinder is a cylindrical plate structure and the outer edge cylinder plate (322) of the positioning sleeve is arranged at a position corresponding to the step (315) of the take-up base, the positioning sleeve upper connecting plate (323) is formed on the upper part of the outer edge cylinder plate (322) of the positioning sleeve and the positioning sleeve through hole portion (321) is arranged at the central position of the positioning sleeve upper connecting plate (323), and a positioning sleeve inner cavity (324) is formed inside the positioning sleeve (32) and corresponding to the positioning sleeve through hole portion (321) and the outer edge cylinder plate (322) of the positioning sleeve, and the take-up base is vertically spaced The plate (313) is inserted into the inner cavity (324) of the positioning sleeve, and a plurality of positioning sleeve upper connecting plate engaging feet (3231) are formed on the upper surface of the positioning sleeve upper connecting plate (323), and a plurality of power output plate engaging holes (43) are also provided on the power output plate (4) at positions corresponding to the plurality of positioning sleeve upper connecting plate engaging feet (3231). The plurality of positioning sleeve upper connecting plate engaging feet (3231) are all engaged with the corresponding power output plate engaging holes (43) to achieve connection and fixation between the positioning sleeve (32) and the power output plate (4).

6. The electric turntable for a car seat according to claim 5, characterized in that The output gear member (5) comprises an output gear member mating portion (51) and an inner gear plate (52) formed at the lower part of the output gear member mating portion (51). The output gear member mating portion (51) is matingly mounted with the power output plate mating hole (41) to realize the transmission connection between the output gear member (5) and the power output plate (4). The outer peripheral side surface of the inner gear plate (52) is formed as a smooth inner gear plate outer surface (521), and an inner gear ring (522) is formed inside the inner gear plate (52). The output gear member (5) also comprises an output gear member convex ring (53) formed at the center of the circle and extending downward, and a shaft sleeve (54) is sleeved inside the output gear member convex ring (53).

7. The electric turntable for a car seat according to claim 6, characterized in that The stepless transmission mechanism (6) comprises a cam member (61), a transmission gear cylinder (62), a bushing (63), a pair of clearance eliminating blocks (64) and a retaining spring (65); the cam member (61) comprises a cam disc body (611) in a disc-shaped structure and a cam shaft (612); the cam shaft (612) is convexly arranged at the center position of the cam disc body (611); the cam shaft (612) is inserted into the output gear member convex ring (53) of the output gear member (5) and the shaft sleeve (54) is sleeved on the cam shaft (612); the cam shaft (612) is also connected to the driving rod (71) of the motor assembly (7) in cooperation with the driving rod (71) of the motor assembly (7). The cam plate body (611) is connected together, and a convex baffle (613) is convexly provided at a position near the outer edge of the upper side surface of the cam plate body (611), and a retaining spring accommodating groove (614) is also concavely provided on the cam plate body (611); the transmission gear cylinder (62) has a transmission gear cylinder body (621) with a cylindrical structure and an outer gear plate (622), the upper and lower ends of the transmission gear cylinder body (621) are open and hollow inside to form a transmission gear cylinder hollow cavity (623), the cam member (61) is arranged inside the transmission gear cylinder hollow cavity (623), and the output gear of the output gear member (5) is The convex ring (53) of the output gear member (5) is inserted into the hollow cavity (623) of the transmission gear cylinder, and the outer gear plate (622) is formed on the upper part of the transmission gear cylinder body (621), and the outer peripheral part of the outer gear plate (622) is formed with an outer gear ring (6221), and the outer gear ring (6221) is differentially meshed with the inner gear ring (522) of the output gear member (5), and the output gear member (5) is placed on the outer gear plate (622); the bushing (63) is closely arranged at the upper position of the inner peripheral side wall of the hollow cavity (623) of the transmission gear cylinder; a pair of anti-backlash blocks (64) are arranged along the cam plate body (61) of the cam member (61) The outer circumferential direction of the cam member (611) is symmetrically arranged on both sides of the convex baffle (613), and the outer circumferential side surfaces of the pair of anti-backlash blocks (64) arranged between the convex ring (53) of the output gear member and the bushing (63) are in contact with the inner wall of the bushing (63); the retaining spring (65) is received in the retaining spring receiving groove (614) of the cam member (61), and two retaining spring feet (651) are formed at two open ends of the retaining spring (65) and at positions corresponding to the middle of the two anti-backlash blocks (64), and the two retaining spring feet (651) protrude out of the retaining spring receiving groove (614) and are respectively hooked on the opposite ends of the two anti-backlash blocks (64).

8. The electric turntable for a car seat according to claim 7, characterized in that One end portion of the two anti-backlash blocks (64) is formed with an anti-backlash block stop surface (641), and the other end portion of the two anti-backlash blocks (64) is formed with a retaining spring foot matching groove (642), the two retaining spring feet (651) are fitted in their respective corresponding retaining spring foot matching grooves (642), and the inner side surface of the anti-backlash block (64) is formed as an anti-backlash surface (643) matching the outer side wall of the output gear member convex ring (53), and the outer side surface of the anti-backlash block (64) is formed as an anti-backlash block outer working surface (644) matching the inner side wall of the bushing (63), and the anti-backlash surface (643) and the anti-backlash block outer working surface (644) are both inclined wedge-shaped profiles and are eccentrically designed between the two.

9. The electric turntable for a car seat according to claim 7, characterized in that The linkage reversing mechanism (8) comprises a transmission connecting plate (81), a cross transmission plate (82), a transition rotating plate (83), a three-fork arm plate (84), three connecting rods (85) and a concentric retaining ring (86); the transmission connecting plate (81) is a quasi-circular plate structure and is arranged below the transmission gear cylinder (62), and a plurality of transmission connecting plate convex circles (811) are convexly arranged on the upper side surface of the transmission connecting plate (81), and the plurality of transmission connecting plate convex circles (811) are inserted into the transmission gear cylinder hollow cavity (623) of the transmission gear cylinder (62) and are connected to the transmission gear cylinder (62). The inner side walls of the hollow cavity (623) in the moving gear cylinder are in contact with each other, and a pair of transmission connecting plate matching blocks (812) are convexly formed on the downward side surface of the transmission connecting plate (81); the cross transmission plate (82) is in a cross plate structure and is composed of two vertically arranged long strips, and a cross transmission plate matching groove (821) is provided at the four end positions of the cross transmission plate (82), and the two transmission connecting plate matching blocks (812) are respectively matched and installed in the cross transmission plate matching grooves (821) at the two ends of a long strip of the cross transmission plate (82); the transition rotating plate (83) is disc-shaped The transition rotating plate (83) is arranged at a lower position of the cross transmission plate (82), and a pair of transition rotating plate matching blocks (831) are convexly arranged on the upper side surface of the transition rotating plate (83), and the pair of transition rotating plate matching blocks (831) are respectively matched and installed in the cross transmission plate matching grooves (821) at the two ends of the other long strip plate of the cross transmission plate (82), and a plurality of transition rotating plate connecting holes (832) penetrating the thickness direction of the transition rotating plate (83) are also opened on the transition rotating plate (83); the three-fork arm plate (84) is arranged at a lower position of the transition rotating plate (83), and the three-fork arm plate (84) is provided on the transition rotating plate (83). A plurality of three-fork arm plate connection holes (841) are provided on the plate (84) at positions corresponding to the transition rotating plate connection holes (832), and each of the plurality of three-fork arm plate connection holes (841) is provided with a connection fastener that passes through the transition rotating plate connection holes (832), thereby realizing the connection between the three-fork arm plate (84) and the transition rotating plate (83); one end of the three connecting rods (85) in the length direction is hinged at the three outer end positions of the three-fork arm plate (84), respectively, and the other end of the three connecting rods (85) in the length direction is connected to the fixed lower plate edge ring plate (111) and the fixed upper plate hook plate portion (121);The concentric guard ring (86) is a cylindrical structure with a hollow interior. The lower portion of the concentric guard ring (86) is mounted on the outer peripheral portion of the transition rotating plate (83), and the upper portion of the concentric guard ring (86) is mounted on the inner gear plate outer surface (521) of the inner gear plate (52) to achieve positioning of the transition rotating plate (83) and the inner gear plate (52). A concentric guard ring fold (861) extending inward is also formed at the lower end of the concentric guard ring (86). The transition rotating plate (83) and the three-fork arm plate (84) are respectively installed at the upper and lower sides of the concentric guard ring fold (861).

10. The electric turntable for a car seat according to claim 7, characterized in that The cam disc body (611) and the cam shaft (612) of the cam member (61) form an integral structure, and the cam member (61) is an integrally formed member.

Images