Automobile seat disc type rotating device

Abstract

The utility model discloses a disc type rotating device of an automobile seat, and belongs to the technical field of automobile seats. Comprising a lower chassis; the group of lower gaskets are arranged on the upward side of the lower chassis; the rotating disc is supported on the group of lower gaskets and is provided with a rotating disc centering mechanism abdicating hole; the rotating disc centering mechanism is fixed with the lower chassis; the rotating disc driving mechanism is used for driving the rotating disc to rotate; the structure is characterized in that a gear ring plate is directly formed in the middle area of the lower chassis, a lower chassis center hole is formed in the center area of the gear ring plate, and a gear ring is formed on the wall body of the side, facing the lower chassis center hole, of the gear ring plate; the rotating disc centering mechanism is fixed to the lower chassis, a rotating disc locking and unlocking executing mechanism is arranged on the rotating disc, and a lock shaft traction connecting mechanism is arranged on the rotating disc driving mechanism. The device has the advantages of compact structure and convenience in manufacturing and assembling; the stable effect tending to be gapless when the rotating disc rotates can be fully guaranteed; the safety is embodied; the requirements for flattening and light weight can be met, and the adaptability to different vehicles is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive seat technology, specifically relating to an automotive seat disc rotating device. Background Technology

[0002] The aforementioned rotating car seat mechanism, which can be simply referred to as a car seat rotating mechanism, offers numerous advantages, not limited to the following: Increased comfort, as it can be adjusted to suit the passenger's height and build, providing a more comfortable riding experience. For example, passengers can adjust the seat to their most comfortable position for better visibility and ease of operation. It meets various application scenarios, allowing the seat to rotate to facilitate face-to-face business meetings within the vehicle. It facilitates getting in and out of the vehicle, for example, by rotating the seat to face the door for easier entry and exit, which is particularly considerate for passengers with mobility issues. It enhances safety, as the rotating mechanism's structural design ensures the seat remains stable during rotation, preventing sudden movement due to external forces, which is highly beneficial for passenger safety. It facilitates multi-person configurations, such as creating a five-person meeting and entertainment setup (three non-rotating rear seats and two rotating single seats in the front), etc. In short, rotating car seats are widely popular in both commercial vehicles and family cars.

[0003] Technical information related to car seat rotation devices can be found in publicly available Chinese patent documents, such as CN220429943U, which recommends "a car rotating seat," and CN222223952U, which provides "a rotating and locking mechanism for a car seat." A typical example is CN109017460A, which describes "a car seat rotation mechanism." This patent addresses the shortcomings of rotating devices such as ball bearings. Specifically, in paragraph 0002 of its specification, it states: "When using components such as ball bearings to achieve the rotation function, as the ball bearings roll, the seat may shift longitudinally relative to the car floor, which in severe cases may cause the seat to collide with other components inside the vehicle."

[0004] The positive significance of CN109017460A is described in paragraph 0015 of the specification: "The upper rotating part and the lower fixed part adopt a nested and clamping structure, so that when the upper rotating disk rotates, it drives the clamping disk to rotate together, and the clamping disk will not shift laterally because it is constrained by the fixed disk." However, through interpretation of the specification of this patent, the following shortcomings are found: Because it fixes the fixed disk with an annular toothed ring at the center position to the non-rotating lower base plate by fasteners spaced around the circumference of the fixed disk, and because the clamping sleeve with a C-shaped or U-shaped cross-section is embedded in the receiving space of the clamping disk while clamping the edge of the fixed disk, the aforementioned fixed disk and lower base plate form independent structural components, and the clamping sleeve and fixed disk also form independent structural components. Therefore, there are many parts, and the structure is complex. The loose structure is not only unfavorable for manufacturing and assembly, but also uneconomical. Because it must accommodate the engagement of two upper limit protrusions at the bottom of the upper rotating plate (which can be called the "rotating plate") with a lower limit protrusion fixed to the upper surface of the lower chassis, and also the engagement of the upper tensile fixing groove fixed to the lower surface of the upper rotating plate with the Z-shaped lower tensile fixing seat fixed to the lower chassis, the structural complexity of the upper rotating plate is significantly increased. The patent does not provide technical guidance on locking the upper rotating plate to the lower chassis (which acts as a fixing plate) in the normal state when the rotating plate is not in use, such as when the seat is facing forward in the direction of vehicle travel, to prevent even the slightest abnormal independent rotation that could cause fear in the occupant. Since the thickness of the entire mechanism is the sum of the thicknesses of the lower chassis, the clamping plate, and the upper rotating plate, it lacks flatness and lightweight design. In view of the foregoing, improvements are necessary, and the technical solution described below arose in this context. Utility Model Content

[0005] The objective of this invention is to provide an automotive seat disc rotating device that facilitates the direct integration of the gear ring onto the lower chassis, thereby eliminating the need for a clamping sleeve, significantly reducing the number of parts and achieving a compact structure, facilitating manufacturing and assembly, and demonstrating good economic efficiency. It also eliminates the need for a rotation limiting mechanism composed of upper and lower limiting protrusions respectively located on the rotating disc and the lower chassis, significantly reducing the stringent requirements on the rotating disc and lower chassis structure, ensuring a near-clearance smooth rotation of the rotating disc, enabling the rotating disc to be locked to the lower chassis in non-use states for safety, and facilitating flattening and lightweighting requirements to improve adaptability to different vehicles.

[0006] The present invention achieves its objective as follows: a rotating disc device for an automobile seat includes a chassis; a set of lower pads disposed on the upward-facing side of the chassis; a rotating disc rotatably supported on the lower pads on its downward-facing side, with a centering hole formed in the center of the disc; a centering mechanism fixed to the chassis at a position corresponding to the centering hole, and simultaneously limiting the area surrounding the centering hole; and a rotating disc drive mechanism disposed on the upward-facing side of the disc. The features are as follows: a gear ring plate is directly formed in the middle region of the lower chassis, the central region of which forms the lower chassis center hole. A gear ring is formed on the wall of the gear ring plate facing the lower chassis center hole and in the circumferential direction around the hole wall of the lower chassis center hole. The rotary disk drive mechanism meshes with the gear ring. The rotary disk centering mechanism is fixed to the lower chassis at a position corresponding to the gear ring plate. A rotary disk locking and unlocking actuator is provided on the rotary disk for locking or unlocking the rotary disk to the lower chassis. A locking shaft traction connection mechanism is provided on the rotary disk drive mechanism and is connected to the rotary disk locking and unlocking actuator.

[0007] In a specific embodiment of this utility model, a recessed lower pad receiving cavity with a width adapted to the width of the lower pad is formed around the circumference of the lower chassis on the upward-facing side of the lower chassis and at the position corresponding to the set of lower pads. The set of lower pads is disposed in the lower pad receiving cavity. On the upward-facing side of the set of lower pads, at least a pair of lower pad bosses protruding from the surface of the lower pads and spaced apart from each other are formed. The upper surface of the lower pad boss protrudes from the upper surface of the lower pad receiving cavity. The space between two adjacent lower pad bosses forms a lower pad recess. The downward-facing side of the rotating disk is rotatably supported on the lower pad bosses. The shape of the set of lower pads is C-shaped, and two, three, or four of them are connected end to end to form an integral annular structure.

[0008] In another specific embodiment of this utility model, a lower chassis outer boss with a cross-sectional shape of ︹ is formed on the upward-facing side of the lower chassis and around the outer periphery of the lower gasket receiving cavity; a certain center disk support cavity is formed on the upward-facing side of the rotating disk and around the clearance hole of the rotating disk centering mechanism; and moving disk seat fixing screws are provided at intervals on the periphery of the rotating disk, which are fixed to the car seat in use; the rotating disk centering mechanism, which is fixed to the lower chassis at the position corresponding to the gear ring plate, is supported on the bottom wall of the centering disk support cavity; the rotating disk drive mechanism, together with the locking shaft traction connection mechanism, is arranged on the rotating disk in a state of being suspended on the upward-facing side of the rotating disk; the rotating disk locking and unlocking actuator locks or unlocks the lower chassis at the position corresponding to the lower chassis outer boss.

[0009] In another specific embodiment of this utility model, the rotating disk centering mechanism includes a centering locking disk and a set of upper washers. A centering locking disk hole is formed at the center of the centering locking disk. A centering locking disk stack is formed around the centering locking disk hole on one upward-facing side. A centering locking disk fixing groove is formed on the outer side of the centering locking disk stack, recessed into the surface of the centering locking disk. A gear ring plate screw is provided at intervals on the gear ring plate at positions corresponding to the centering locking disk fixing groove. The upper end of the gear ring plate screw protrudes into the centering locking disk fixing groove through a gear ring plate screw hole formed on the bottom wall of the centering locking disk fixing groove, and is locked by a nut within the centering locking disk fixing groove. The base of the gear ring plate screw is located on the downward-facing side of the gear ring plate. On the centering locking disc and around the perimeter of the centering locking disc fixing groove, there are upper washer inserting flange protrusion holes spaced in pairs, with the number equal to the number of a set of upper washers. Each upper washer has a pair of upper washer inserting flanges on its upper surface and a pair of upper washer supporting bosses on its lower surface. Each upper washer has an inclined baffle at one end facing the centering locking disc fixing groove. The pair of upper washer inserting flanges fit into the upper washer inserting flange protrusion holes. The pair of upper washer supporting bosses are supported on the bottom wall of the centering disc support cavity, and the inclined baffles are in contact with the outer wall of the centering locking disc fixing groove.

[0010] In another specific embodiment of this utility model, a first fixing screw and a second fixing screw for a motor mounting bracket are provided on the rotating disk. The first and second fixing screws are spaced 180° apart from each other around the circumference of the rotating disk. The rotating disk drive mechanism includes a motor mounting bracket, a rotating disk drive motor, a rotating disk drive reduction gearbox, a reduction gearbox fixing bracket, and a gear ring meshing gear. A left fixing ear for the motor mounting bracket extends from the left end of the motor mounting bracket, and the first fixing screw is fixed to the left fixing ear. A right fixing ear for the motor mounting bracket extends from the right end of the motor mounting bracket, and the second fixing screw is fixed to the right fixing ear. The right fixed ear is fixed, and the middle part of the motor mounting bracket is in an airborne state corresponding to the top of the rotating disk. The rotating disk drive motor is set in a horizontal state. The rotating disk drive motor is connected to the rotating disk drive reduction gearbox and is fixed to the reduction gearbox fixing bracket along with the rotating disk drive motor. The reduction gearbox fixing bracket is fixed to the downward-facing side of the motor mounting bracket. The gear ring meshing gear is fixed on the rotating disk drive reduction gearbox shaft and meshes with the gear ring at a position corresponding to the center hole of the lower chassis. The locking shaft traction connection mechanism, which is connected to the rotating disk locking and unlocking actuator set on the rotating disk, is set on the downward-facing side of the left end of the motor mounting bracket.

[0011] In another specific embodiment of this utility model, the locking shaft traction connection mechanism includes a pull rope reel drive motor, a pull rope reel, and a pull rope. The pull rope reel drive motor is arranged in a horizontal position. The pull rope reel drive motor is connected to the pull rope reel and is fixed to the left end of the motor mounting bracket facing downwards. One end of the pull rope facing the pull rope reel is connected to the pull rope reel, and the other end of the pull rope facing the rotating disc locking and unlocking actuator is connected to the rotating disc locking and unlocking actuator. The pull rope is movably disposed within a pull rope outer sheath.

[0012] In a further specific embodiment of this utility model, the rotary disk drive motor and the pull cord drive motor are motors with forward and reverse rotation functions; a lead tube is fixed in the middle of the motor mounting bracket in a longitudinal cantilever state, and a lead seat fixing flange is formed on the periphery of the bottom of the outer wall of the lead tube. A lead seat is fixed on the lead seat fixing flange by a pair of lead seat fixing screws. The lead seat has a lead seat cavity corresponding to the lead tube cavity of the lead tube. A bushing hole is opened on the upward side of the lead seat at a position corresponding to the shaft of the rotary disk drive gearbox. A bushing is provided in the bushing hole, and the end of the rotary disk drive gearbox shaft cooperates with the bushing.

[0013] In a further specific embodiment of this utility model, a locking tongue hole is provided on the outer protrusion of the lower chassis at a position corresponding to the locking and unlocking mechanism of the rotating disk. When the locking and unlocking mechanism of the rotating disk is in a state of engaging with the locking tongue hole, the rotating disk and the lower chassis are locked together. When the locking and unlocking mechanism of the rotating disk is in a state of disengaging from the locking tongue hole, the rotating disk and the lower chassis are unlocked.

[0014] In yet another specific embodiment of this utility model, a pair of locking shaft support seats are formed on the rotating disk at positions corresponding to the locking and unlocking actuators of the rotating disk. The space between the pair of locking shaft support seats forms a locking tongue clearance cavity. When the rotating disk and the lower chassis are in a locked state, the locking tongue clearance cavity corresponds to the locking tongue hole. An anti-impact protection mechanism is provided on the rotating disk and the lower chassis as carriers. The number of the anti-impact protection mechanisms is at least a pair arranged at intervals, and each includes a pull-down seat and an upper pull-up seat. The pull-down seat is located at the outer edge of the lower chassis and is secured by a pull-down seat screw. The upper pull seat is fixed to the lower chassis and located on the outer edge of the rotating disk. It is fixed to the rotating disk by upper pull seat screws. The upper pull seat and the lower pull seat are mutually restraining and cooperating. The cross-sectional shape of the lower pull seat is 1 / 2-shaped, while the cross-sectional shape of the upper pull seat is L-shaped and extends into the lower pull seat cavity. In use, the lower pull seat screws are also fixed to the chassis fixing plate located below the lower chassis. Chassis fixing plate fixing screws are also provided at intervals around the circumference of the lower chassis on the lower chassis and on the outer side of the lower chassis outer boss. In use, the upper pull seat screws are also fixed to the car seat.

[0015] In another specific embodiment of this utility model, the rotary disc locking and unlocking actuator includes a locking shaft, a locking shaft traction arm, a locking tongue, a return torsion spring, and an outer sheath fixing plate. The middle part of the locking shaft rests on a pair of locking shaft support seats formed on the rotary disc. Both ends of the locking shaft are rotatably supported on locking shaft pivot seats formed on the rotary disc and located on either side of the pair of locking shaft support seats. The locking shaft traction arm is sleeved on the end of the locking shaft facing the outer sheath fixing plate and is limited by traction arm limiting clips located on either side of the locking shaft traction arm. The end of the pull cord facing the rotary disc locking and unlocking actuator is fixed to the locking shaft traction arm, and the pull cord outer sheath... The outer sheath fixing plate is fixed to the upward-facing side of the rotating disk. The latch has a latch sleeve, which is fitted onto the lock shaft at a position corresponding to the latch clearance cavity. The latch sleeve is limited by a limiting foot located on the lock shaft at a position corresponding to the limiting foot groove opened on the latch sleeve. When the latch is inserted into the latch hole, the rotating disk is locked to the lower base. When the latch is withdrawn from the latch hole, the rotating disk is released from the lock shaft. A return torsion spring is fitted onto the lock shaft. The first torsion spring foot of the return torsion spring abuts against the downward-facing side of the rotating disk, and the second torsion spring foot abuts against the torsion spring foot stop screw fixed on the lock shaft.

[0016] One of the technical advantages of the present invention is that, since the gear ring plate is directly formed on the lower chassis, the clamping sleeve is eliminated compared to the prior art, significantly reducing the number of components required. This results in a compact structure, convenient manufacturing and assembly, and good economic efficiency. Secondly, the concentricity of the rotating disk and the lower chassis is ensured by the rotating disk centering mechanism, which is fixed to the lower chassis and simultaneously limits the surrounding area of ​​the rotating disk centering mechanism's clearance hole. This significantly reduces the stringent manufacturing requirements on the rotating disk and lower chassis structure and ensures a smooth, gapless rotation of the rotating disk. Thirdly, the addition of a rotating disk locking and unlocking actuator and a locking shaft traction connection mechanism reliably locks the rotating disk to the lower chassis when the rotating disk is in a non-rotating operating state, enhancing safety. Fourthly, since the overall thickness is only the sum of the thicknesses of the lower chassis and the rotating disk, it meets the requirements of flattening and lightweighting, and improves adaptability to different vehicles. Attached Figure Description

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

[0018] Figure 2 for Figure 1 A bottom view of the rotary disk drive mechanism and the locking shaft traction connection mechanism shown;

[0019] Figure 3 for Figure 1 The diagram shows a detailed structure of the locking shaft traction arm, locking tongue, and reset torsion spring mounted on the rotating shaft of the rotary disc locking and unlocking actuator.

[0020] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the rotating disk and the lower chassis. Detailed Implementation

[0021] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0022] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on... Figure 1 The current position shown is a baseline and should not be construed as a specific limitation on the technical solution provided by this utility model.

[0023] Please see Figure 1 The diagram shows a chassis 1; a set of lower pads 2 disposed on the upward-facing side of the chassis 1; a rotating disk 3 rotatably supported on the lower pads 2 on the downward-facing side, with a centering hole 31 formed in the center of the rotating disk 3; a centering mechanism 4 fixed to the chassis 1 at a position corresponding to the centering hole 31, and simultaneously limiting the area around the centering hole 31; and a rotating disk drive mechanism 5 for rotating the rotating disk 3, disposed on the upward-facing side of the rotating disk 3.

[0024] The key technical points of the technical solution provided by this utility model are as follows: A gear plate 11 is directly formed in the middle region of the aforementioned lower chassis 1. The central region of the gear plate 11 forms the lower chassis center hole 12 of the lower chassis 1. A gear ring 111 is formed on the wall of the gear plate 11 facing the lower chassis center hole 12 and in the circumferential direction around the hole wall of the lower chassis center hole 12. The aforementioned rotary disk drive mechanism 5 meshes with the gear ring 111. The aforementioned rotary disk centering mechanism 4 is fixed to the aforementioned lower chassis 1 at the position corresponding to the gear plate 11. A rotary disk locking and unlocking execution mechanism 6 is provided on the aforementioned rotary disk 3 for locking or unlocking the rotary disk 3 and the lower chassis 1. A locking shaft traction connection mechanism 7 is provided on the aforementioned rotary disk drive mechanism 5. The locking shaft traction connection mechanism 7 is connected to the aforementioned rotary disk locking and unlocking execution mechanism 6.

[0025] Please see Figure 4 And combined Figure 1 On the upward-facing side of the aforementioned lower chassis 1, and at the position corresponding to the aforementioned set of lower pads 2, a downwardly recessed lower pad receiving cavity 13 is formed around the circumference of the lower chassis 1, and the width of the lower pad is adapted to the width of the set of lower pads 2. The aforementioned set of lower pads 2 is disposed in the lower pad receiving cavity 13. On the upward-facing side of the set of lower pads 2, a pair of lower pad bosses 21 protruding from the surface of the lower pad 2 and spaced apart from each other are formed. The upper surface of the lower pad bosses 21 protrudes from the upper surface of the lower pad receiving cavity 13. The space between two adjacent lower pad bosses 21 forms a lower pad recess 22. The downward-facing side of the aforementioned rotating disk 3 is rotatably supported on the lower pad bosses 21. In this embodiment, the aforementioned set of lower pads 2 are each C-shaped, and four of them are connected end to end (also called "connected") to form an integral ring structure. Of course, the number of lower pads 2 in a set can also be two or three of the same length (arc length).

[0026] In this embodiment, the number of the aforementioned lower gasket protrusions 21 is one pair, but this should not be taken as a necessary number; for example, it could be three or four. Although four are mentioned as the number of a set of lower gaskets 2, it could also be two or three, etc. Therefore, the present invention cannot be limited by the number of the aforementioned components. The aforementioned set of lower gaskets 2 preferably uses gaskets made of self-lubricating materials, such as polytetrafluoroethylene, ceramic, or copper-based inlaid self-lubricating materials, etc. However, if gaskets with stable friction, isolation, sealing, and elasticity, such as those made of metal, rubber, or asbestos, are used, these should be considered equivalent technical means and still fall within the scope of the technical content disclosed in this invention.

[0027] Depend on Figure 1 As shown, lower chassis retaining holes 15 are provided at intervals in the aforementioned lower gasket receiving cavity 13 and around the circumference of the lower gasket receiving cavity 13. The function of the lower chassis retaining holes 15 is: when the lower chassis 1 of this utility model is installed with the separately equipped lower chassis fixing plate with retaining feet 9 (not shown in the figure), the lower chassis retaining holes 15 and retaining feet 9 are engaged, that is, the retaining feet 9 are inserted into the lower chassis retaining holes 15.

[0028] The aforementioned lower chassis 1 can be installed on the vehicle in at least three ways, but not limited to the following: First, a lower chassis mounting plate is installed (i.e., fixed) on the vehicle floor, with the aforementioned locking feet 9 formed on the lower chassis mounting plate. The lower chassis 1 is mounted on the lower chassis mounting plate through the lower chassis locking foot holes 15 at positions corresponding to the locking feet 9, and simultaneously fixed to the lower chassis mounting plate by chassis mounting plate screws 16 and pull-down seat screws 811 (mentioned below). Second, a pair of parallel car seat stationary slide rails (i.e., fixed slide rails) are installed on the vehicle's passenger compartment floor, and a pair of car seat moving slide rails forming a sliding pair with the car seat stationary slide rails are installed on the lower chassis mounting plate. The lower chassis 1 is mounted on the lower chassis mounting plate in the first manner described above. Third, the aforementioned locking feet are directly installed on the vehicle's passenger compartment floor, and the lower chassis 1 is fixed to the lower chassis mounting plate through the lower chassis locking foot holes 15 on them. In the second manner described above, considering the structure of the slide rails, the lower chassis mounting plate is a rectangular plate. Of course, the installation methods mentioned above are just examples and should not be interpreted as being limited to these methods.

[0029] On the upward-facing side of the aforementioned lower chassis 1 and around the outer periphery of the aforementioned lower gasket receiving cavity 13, there is an arched lower chassis outer boss 14 with a cross-sectional shape of ︹; on the upward-facing side of the aforementioned rotating disk 3 and around the aforementioned rotating disk centering mechanism clearance hole 31, there is a fixed center disk support cavity 32; and at intervals, moving disk seat fixing screws 36 are provided on the periphery of the rotating disk 3. In use, the moving disk seat fixing screws 36 are fixed to the car seat. The aforementioned rotating disk centering mechanism 4, which is fixed to the aforementioned lower chassis 1 at the position corresponding to the aforementioned gear ring plate 11, is supported on the bottom wall of the aforementioned centering disk support cavity 32; the aforementioned rotating disk drive mechanism 5, together with the aforementioned locking shaft traction connection mechanism 7, is provided on the rotating disk 3 in a state of being suspended on the upward-facing side of the rotating disk 3; the aforementioned rotating disk locking and unlocking execution mechanism 6 is locked or unlocked with the aforementioned lower chassis 1 at the position corresponding to the aforementioned lower chassis outer boss 14.

[0030] See you later Figure 2 and Figure 4The aforementioned rotating disk centering mechanism 4 includes a centering locking disk 41 and a set of upper washers 42. A centering locking disk hole 411 is formed at the center of the centering locking disk 41. A centering locking disk stack ring 4111 is formed on the upward-facing side surrounding the centering locking disk hole 4111. A centering locking disk fixing groove 43, recessed into the surface of the centering locking disk 41, is formed on the outer side of the centering locking disk stack ring 4111. A gear ring plate screw 112 is provided at intervals on the aforementioned gear ring plate 11 at positions corresponding to the centering locking disk fixing groove 43. The upper end of the gear ring plate screw 112 extends into the centering locking disk fixing groove 43 through a gear ring plate screw hole 431 formed in the bottom wall of the centering locking disk fixing groove 43 and is locked by a gear ring plate screw locking nut 1121 located within the centering locking disk fixing groove 43. The base of 112 is located on the downward-facing side of the gear plate 11. On the centering locking disc 41 and around the periphery of the aforementioned centering locking disc fixing groove 43, there are upper gasket embedding flange protrusion holes 44 arranged in pairs, with the number equal to the number of a set of upper gaskets 42. Each set of upper gaskets 42 has a pair of upper gasket embedding flanges 421 on its upper surface and a pair of upper gasket support bosses 422 on its lower surface. Each set of upper gaskets 42 has an inclined baffle 423 at one end facing the aforementioned centering locking disc fixing groove 43. The aforementioned pair of upper gasket embedding flanges 421 are fitted with the aforementioned upper gasket embedding flange protrusion holes 44. The aforementioned pair of upper gasket support bosses 422 are supported on the cavity bottom wall of the aforementioned centering disc support cavity 32, and the aforementioned inclined baffle 423 is in contact with the outer wall 432 of the centering locking disc fixing groove 43. The material of the set of upper gaskets 42 mentioned above is the same as that of the set of lower gaskets 2.

[0031] A first fixing screw 33a and a second fixing screw 33b for a motor mounting bracket are provided on the aforementioned rotating disk 3. The first fixing screw 33a and the second fixing screw 33b for a motor mounting bracket are 180° apart from each other in the circumferential direction of the rotating disk 3.

[0032] Please see Figure 2 And combined Figure 1The aforementioned rotary disk drive mechanism 5 includes a motor mounting bracket 51, a rotary disk drive motor 52, a rotary disk drive reduction gearbox 53, a reduction gearbox fixing bracket 54, and a gear ring meshing gear 55. A left fixing lug 511 extends from the left end of the motor mounting bracket 51, and a left fixing lug hole 5111 is formed on the left fixing lug 511. The aforementioned first fixing screw 33a of the motor mounting bracket is fixed to the left fixing lug 511 at a position corresponding to the left fixing lug hole 5111 and is locked by a left locking nut 33c. A right fixing lug 512 extends from the right end of the motor mounting bracket 51, and a right fixing lug hole 5121 is formed on the right fixing lug 512. The aforementioned second fixing screw 33b of the motor mounting bracket is fixed to the right fixing lug 512 and is locked by a right locking nut 33c. Locking nut 33d locks the motor mounting bracket 51 in a free state above the rotating disk 3. The rotating disk drive motor 52 is horizontally mounted and is connected to the rotating disk drive reduction gearbox 53. The rotating disk drive reduction gearbox 53, together with the rotating disk drive motor 52, is fixed to the reduction gearbox fixing bracket 54. The reduction gearbox fixing bracket 54 is fixed to the downward-facing side of the motor mounting bracket 51. The gear ring meshing gear 55 is fixed to the rotating disk drive reduction gearbox shaft 531 of the rotating disk drive reduction gearbox 53 by a flat key or by a locking screw and meshes with the gear ring 111 at the position corresponding to the aforementioned lower chassis center hole 12. The aforementioned locking shaft traction connection mechanism 7, which is connected to the aforementioned rotating disk locking and unlocking actuator 6 mounted on the aforementioned rotating disk 3, is located on the downward-facing side of the left end of the aforementioned motor mounting bracket 51.

[0033] The aforementioned locking shaft traction connection mechanism 7 includes a cable reel drive motor 71, a cable reel 72, and a cable 73. The cable reel drive motor 71 is horizontally mounted and is connected to the cable reel 72. The cable reel 72 and the cable reel drive motor 71 are fixed together on the downward-facing left side of the aforementioned motor mounting bracket 51. One end of the cable 73 facing the cable reel 72 is connected to the cable reel 72, and the other end of the cable 73 facing the aforementioned rotary disc locking and unlocking actuator 6 is connected to the rotary disc locking and unlocking actuator 6. The cable 73 is movably disposed within a cable outer sheath 731. The cable 73 with the cable outer sheath 731 is similar in structure to the throttle cable of a motorcycle.

[0034] The aforementioned cable reel 72, also known as a wire rope reel, is driven by the aforementioned cable reel drive motor 71. Its working principle is roughly as follows: The cable reel drive motor 71 provides power to the cable reel 72. That is, when the cable reel drive motor 71 is powered on, it begins to rotate. The rotation of the motor is transmitted to the drive wheel through a transmission device such as gears, belts, or chains. The drive wheel is usually located at the bottom of the cable reel 72 and directly contacts the working surface. The drive wheel drives the cable rope 73 to move, that is, it moves along the working surface. When the bottom of the cable reel 72 contacts the object that needs to be rotated, the cable rope 73 pulls the object that needs to be rotated.

[0035] In this embodiment, the aforementioned rotary disk drive motor 52 and the pull cord drive motor 71 are motors with forward and reverse rotation functions. A lead tube 513 is fixed in the middle of the aforementioned motor mounting bracket 51 in a longitudinal cantilever state. A lead seat fixing flange edge 5132 is formed on the periphery of the bottom of the outer wall of the lead tube 513. A lead seat 10 is fixed on the lead seat fixing flange edge 5132 by a pair of lead seat fixing screws 102. The lead seat 10 has a lead seat cavity 101 with a generally U-shaped shape corresponding to the lead tube cavity 5131 of the lead tube 513. A bushing hole 103 is opened on the upward side of the lead seat 10 at the position corresponding to the aforementioned rotary disk drive gearbox shaft 531. A bushing 1031 is provided in the bushing hole 103. The end of the aforementioned rotary disk drive gearbox shaft 531 cooperates with the bushing 1031. The power cord is led sequentially through the lead wire seat cavity 101 and the lead wire tube cavity 5131 to the aforementioned rotary disk drive motor 52 and the pull cord reel drive motor 71. The power supply referred to here is the vehicle power supply.

[0036] Depend on Figure 1 As shown, a locking tongue hole 141 is provided on the aforementioned lower chassis outer protrusion 14 and at the position corresponding to the aforementioned rotary disc locking and unlocking actuator 6. When the rotary disc locking and unlocking actuator 6 is in the state of engaging with the locking tongue hole 141, the aforementioned rotary disc 3 and the aforementioned lower chassis 1 are locked to each other. When the rotary disc locking and unlocking actuator 6 is in the state of disengaging from the locking tongue hole 141, the rotary disc 3 and the lower chassis 1 are unlocked.

[0037] See you later Figure 1 On the aforementioned rotating disk 3, and at a position corresponding to the aforementioned rotating disk locking and unlocking actuator 6, a pair of locking shaft support seats 34 are formed. The space between the pair of locking shaft support seats 34 forms a latch clearance cavity 341. When the aforementioned rotating disk 3 and the aforementioned lower base 1 are in the locked state, the latch clearance cavity 341 corresponds to the aforementioned latch hole 141, that is, it extends into the latch hole 341; Figure 1As shown, an impact protection mechanism 8 is provided on the aforementioned rotating disk 3 and lower chassis 1 as carriers. There is at least one pair of impact protection mechanisms 8 spaced apart, each including a pull-down seat 81 and an upper pull-down seat 82. The pull-down seat 81 is located at the outer edge of the lower chassis 1 and is fixed to the lower chassis 1 by a pull-down seat screw 811. The upper pull-down seat 82 is located at the outer edge of the rotating disk 3 and is fixed to the rotating disk 3 by an upper pull-down seat screw 821. The upper pull-down seat 82 and the pull-down seat 81 are mutually restraining and engaging (mutually interlocking). The cross-sectional shape of the pull-down seat 81 is []-shaped, while the cross-sectional shape of the upper pull-down seat 82 is L-shaped and extends into the pull-down seat cavity 812 of the pull-down seat 81. In this embodiment, there is a pair of impact protection mechanisms 8, each consisting of a pull-down seat 81 and an upper pull-down seat 82. When the vehicle encounters a severe impact, the engaging of the upper pull-down seat 82 and the pull-down seat 81 ensures that the rotating disk 3 and the lower chassis 1 are in a good fit. As mentioned above, in use, the pull-down screw 811 is also fixed to the chassis mounting plate located below the lower chassis 1; chassis mounting plate fixing screws 16 are also provided at intervals around the lower chassis 1 on the lower chassis 1 and on the outer side of the aforementioned lower chassis outer boss 14, for fixing to the aforementioned lower chassis mounting plate, while the aforementioned pull-up screw 821 is also fixed to the car seat in use.

[0038] Please see Figure 3 And combined Figure 1The aforementioned rotary disc locking and unlocking mechanism 6 includes a locking shaft 61, a locking shaft traction arm 62, a locking tongue 63, a return torsion spring 64, and an outer sheath fixing plate 65. The middle part of the locking shaft 61 rests on a pair of locking shaft support seats 34 formed on the aforementioned rotary disc 3. Both ends of the locking shaft 61 are rotatably supported on locking shaft pivot seats 35 formed on the rotary disc 3 and located on both sides of the pair of locking shaft support seats 34. The locking shaft traction arm 62 is sleeved on one end of the locking shaft 61 facing the outer sheath fixing plate 65 and is limited by traction arm limiting clips 613 provided on the locking shaft 61 and located on both sides of the locking shaft traction arm 62. The aforementioned pull cord 73 is fixed to the locking shaft traction arm 62 at one end facing the rotary disc locking and unlocking mechanism 6, and the aforementioned pull cord outer sheath 731 is fixed to the outer sheath fixing plate 65. 5. The locking tongue 63 is fixed to the upward-facing side of the aforementioned rotating disk 3. The locking tongue 63 has a locking tongue sleeve 631. The locking tongue sleeve 631 is sleeved on the locking shaft 61 at the position corresponding to the aforementioned locking tongue relief cavity 341. The locking tongue sleeve 631 is limited by the limiting foot 611 located on the locking shaft 61 at the position corresponding to the limiting foot groove 6311 opened on the locking tongue sleeve 631. When the locking tongue 63 is inserted into the aforementioned locking tongue hole 141, the aforementioned rotating disk 3 is locked with the aforementioned lower base plate 1. When the locking tongue 63 is withdrawn from the locking tongue hole 141, the aforementioned rotating disk 3 is released from the aforementioned lower base plate 1. The return torsion spring 64 is sleeved on the locking shaft 61. The first torsion spring foot 641 of the return torsion spring 64 abuts against the downward-facing side of the aforementioned rotating disk 3, and the second torsion spring foot 642 of the return torsion spring 64 abuts against the torsion spring foot blocking screw 612 fixed on the locking shaft 61.

[0039] Based on professional knowledge, car seats are fixed on rotating disc 3, meaning that... Figure 1The rotating disc seat fixing screw 36, shown and mentioned above, secures the car seat. When the rotating disc 3 is to rotate the car seat mounted on it by an angle, for example, to rotate the car seat from the front corresponding to the direction of travel to the rear of the car, the passenger operates the pull cord drive motor 71 by operating the button switch installed on the side of the seat or other reasonable location. The pull cord drive motor 71 drives the pull cord 73, which in turn pulls the locking shaft traction arm 62 of the rotating disc locking and unlocking actuator 6. The locking shaft traction arm 62 rotates by an angle against the reaction force of the return torsion spring 64, causing the locking tongue sleeve 631 and the locking tongue 63 to move upward out of the locking tongue hole 141. Next, the corresponding button switch is operated to activate the rotary disk drive motor 52 of the rotary disk drive mechanism 5. The rotary disk drive motor 52 drives the rotary disk drive reduction gearbox 53, and the rotary disk drive reduction gearbox shaft 531 of the rotary disk drive reduction gearbox 53 drives the gear ring meshing gear 55 to move along the gear ring 111 until the occupant on the seat changes from facing the direction of vehicle travel to facing away from the direction of vehicle travel (the adjustment method for other angle positions is the same and will not be described again). When the aforementioned latch 63 corresponds to the latch hole 141, it indicates that the occupant is exactly facing the front of the vehicle travel.

[0040] In summary, the technical solution provided by this utility model makes up for the shortcomings of the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. A car seat disc type rotating device comprising a lower base plate (1), a set of lower gaskets (2) provided on the upward side of the lower base plate (1), a rotating disc (3) rotatably supported on the set of lower gaskets (2) on the downward side thereof and having a rotating disc centering mechanism accommodation hole (31) formed in the central position thereof, a rotating disc centering mechanism (4) fixed to the lower base plate (1) at a position corresponding to the rotating disc centering mechanism accommodation hole (31) and simultaneously limiting the area around the rotating disc centering mechanism accommodation hole (31), and a rotating disc driving mechanism (5) for rotating the rotating disc (3) provided on the upward side of the rotating disc (3), characterized in that: In the middle region of the lower chassis (1) is directly formed a gear ring plate (11), the central region of the gear ring plate (11) is formed as the lower chassis central hole (12) of the lower chassis (1), on the wall of the gear ring plate (11) towards the lower chassis central hole (12) side and around the circumference of the hole wall of the lower chassis central hole (12) is formed a gear ring (111), the rotating disc driving mechanism (5) is engaged with the gear ring (111); the rotating disc centering mechanism (4) is fixed with the lower chassis (1) at the position corresponding to the gear ring plate (11), a rotating disc locking and unlocking execution mechanism (6) for locking or unlocking the rotating disc (3) and the lower chassis (1) is arranged on the rotating disc (3), a lock shaft traction connection mechanism (7) is arranged on the rotating disc driving mechanism (5), which is connected with the rotating disc locking and unlocking execution mechanism (6).

2. The automotive seat swivel device according to claim 1, characterized by: On the side of the lower chassis (1) towards the upper side and around the circumference of the lower chassis (1) at the position corresponding to the group of lower gaskets (2) is formed a downwardly recessed lower gasket accommodating cavity (13) with a width adapted to the width of the group of lower gaskets (2), the group of lower gaskets (2) is arranged in the lower gasket accommodating cavity (13), each of the group of lower gaskets (2) is formed with at least one pair of lower gasket bosses (21) protruding from the surface of the lower gasket (2) and spaced from each other on the side of the group of lower gaskets (2) towards the upper side, the upper surface of the lower gasket boss (21) protrudes out of the upper surface of the lower gasket accommodating cavity (13), the space between two adjacent lower gasket bosses (21) is formed as a lower gasket recess (22), the side of the rotating disc (3) towards the lower side is rotatably supported on the lower gasket boss (21); the shape of each of the group of lower gaskets (2) is C-shaped, and is formed as an annular body with two, three or four pieces connected in a head-to-tail manner.

3. The automotive seat swivel device according to claim 2, characterized by: On the side of the lower chassis (1) towards the upper side and around the outside of the lower gasket accommodating cavity (13) is formed a lower chassis outer boss (14) with a cross-sectional shape of a inverted T; on the side of the rotating disc (3) towards the upper side and around the centering disc supporting cavity (32) is formed a centering disc supporting cavity (32), and the dynamic disc seat fixing screws (36) are arranged in a spaced state on the peripheral edge of the rotating disc (3), in the use state, the dynamic disc seat fixing screws (36) are fixed with the automobile seat; the rotating disc centering mechanism (4) fixed with the lower chassis (1) at the position corresponding to the gear ring plate (11) is supported on the cavity bottom wall of the centering disc supporting cavity (32); the rotating disc driving mechanism (5) together with the lock shaft traction connection mechanism (7) is arranged on the rotating disc (3) in a state of being empty on the side of the rotating disc (3) towards the upper side; the rotating disc locking and unlocking execution mechanism (6) is locked or unlocked with the lower chassis (1) at the position corresponding to the lower chassis outer boss (14).

4. The automotive seat swivel device according to claim 3, characterized by: The rotating disc centering mechanism (4) comprises a center locking disc (41) and a set of upper shims (42). The center locking disc (41) is provided with a center locking disc hole (411) in the center position. A center locking disc stack ring (4111) is provided on the upper side around the center locking disc hole (411). A center locking disc fixing groove (43) recessed from the surface of the center locking disc (41) is provided on the outer side around the center locking disc stack ring (4111). A gear ring plate screw (112) is provided on the gear ring plate (11) in a spaced state at a position corresponding to the center locking disc fixing groove (43). The upper end of the gear ring plate screw (112) penetrates into the center locking disc fixing groove (43) through the gear ring plate screw hole (431) opened on the groove bottom wall of the center locking disc fixing groove (43) and is locked by the gear ring plate locking nut (1121) located in the center locking disc fixing groove (43). The base of the gear ring plate screw (112) is located on the lower side of the gear ring plate (11). A number of upper shim embedding flange penetration holes (44) equal to the number of the set of upper shims (42) are provided in pairs and spaced on the outer side of the center locking disc fixing groove (43) around the center locking disc (41). The upper surface of each upper shim (42) is provided with a pair of upper shim embedding flanges (421), and the lower surface is provided with a pair of upper shim supporting bosses (422). An inclined stop edge (423) is provided on the end of each upper shim (42) facing the center locking disc fixing groove (43). The pair of upper shim embedding flanges (421) is embedded with the upper shim embedding flange penetration hole (44). The pair of upper shim supporting bosses (422) is supported on the cavity bottom wall of the center disc supporting cavity (32). The inclined stop edge (423) abuts against the center locking disc fixing groove outer wall (432) of the center locking disc fixing groove (43).

5. The automotive seat swivel device according to claim 3, wherein: A motor mounting frame first fixing screw (33a) and a motor mounting frame second fixing screw (33b) are arranged on the rotating disc (3), and the motor mounting frame first fixing screw (33a) and the motor mounting frame second fixing screw (33b) are separated from each other by 180° around the circumferential direction of the rotating disc (3); the rotating disc driving mechanism (5) comprises a motor mounting frame (51), a rotating disc driving motor (52), a rotating disc driving reduction box (53), a reduction box fixing frame (54) and a gear ring meshing gear (55), a motor mounting frame left fixing lug (511) is extended from the left end of the motor mounting frame (51), the motor mounting frame first fixing screw (33a) is fixed with the motor mounting frame left fixing lug (511), a motor mounting frame right fixing lug (512) is extended from the right end of the motor mounting frame (51), the motor mounting frame second fixing screw (33b) is fixed with the motor mounting frame right fixing lug (512), the middle part of the motor mounting frame (51) is in a vacant state corresponding to the upper part of the rotating disc (3), the rotating disc driving motor (52) is arranged in a lying state, the rotating disc driving motor (52) is in transmission connection with the rotating disc driving reduction box (53) and is fixed with the reduction box fixing frame (54) together with the rotating disc driving motor (52) and the reduction box fixing frame (54) is fixed with the downward side of the motor mounting frame (51), the gear ring meshing gear (55) is fixed on the rotating disc driving reduction box shaft (531) of the rotating disc driving reduction box (53) and is in meshing connection with the gear ring (111) at the position corresponding to the lower chassis center hole (12); The lock shaft traction connection mechanism (7) connected with the rotating disc locking and unlocking execution mechanism (6) arranged on the rotating disc (3) is arranged on the left end of the downward side of the motor mounting frame (51).

6. The automotive seat swivel device according to claim 5, wherein: The lock shaft traction connection mechanism (7) comprises a zipper pull cord driving motor (71), a zipper pull cord (72) and a zipper pull cord (73), the zipper pull cord driving motor (71) is arranged in a lying state, the zipper pull cord driving motor (71) is in transmission connection with the zipper pull cord (72) and is fixed on the left end of the downward side of the motor mounting frame (51) together with the zipper pull cord (72) and the zipper pull cord driving motor (71), one end of the zipper pull cord (73) towards the zipper pull cord (72) is connected with the zipper pull cord (72), and the other end of the zipper pull cord (73) towards the rotating disc locking and unlocking execution mechanism (6) is connected with the rotating disc locking and unlocking execution mechanism (6), wherein the zipper pull cord (73) is movably arranged in a zipper pull cord outer sheath (731).

7. The automotive seat swivel device according to claim 6, characterized by: The rotating disc driving motor (52) and the zipper cable disc driving motor (71) are motors with forward and reverse rotation functions; a lead tube (513) is fixed in a longitudinal cantilever state in the middle part of the motor mounting frame (51), a lead seat fixing flange (5132) is formed around the edge part of the bottom of the outer wall of the lead tube (513), a lead seat (10) is fixed on the lead seat fixing flange (5132) through a pair of lead seat fixing screws (102), the lead seat (10) has a lead seat cavity (101) corresponding to the lead tube cavity (5131) of the lead tube (513), a shaft sleeve hole (103) is opened on the side of the lead seat (10) facing upwards and at the position corresponding to the rotating disc driving reduction box shaft (531), a shaft sleeve (1031) is arranged in the shaft sleeve hole (103), and the end of the rotating disc driving reduction box shaft (531) is matched with the shaft sleeve (1031).

8. The automotive seat swivel device of claim 6, wherein: A lock tongue hole (141) is opened on the lower chassis outer boss (14) and at the position corresponding to the rotating disc locking and unlocking actuating mechanism (6), when the rotating disc locking and unlocking actuating mechanism (6) is in the state of being matched with the lock tongue hole (141), the rotating disc (3) and the lower chassis (1) are locked with each other, and when the rotating disc locking and unlocking actuating mechanism (6) is in the state of being matched with the lock tongue hole (141), the rotating disc (3) and the lower chassis (1) are unlocked.

9. The automotive seat swivel device of claim 8, wherein: On the rotating disc (3) and in the position corresponding to the rotating disc locking and unlocking actuator (6), there is a pair of lock shaft supporting seats (34), the space between the lock shaft supporting seats (34) is the lock tongue displacement cavity (341), when the rotating disc (3) and the lower chassis (1) are in the locked state, the lock tongue displacement cavity (341) corresponds to the lock tongue hole (141); The rotating disc (3) and the lower chassis (1) are provided with an anti-impact protection mechanism (8), the number of the anti-impact protection mechanism (8) is at least a pair of intervals and each includes a lower pull seat (81) and an upper pull seat (82), the lower pull seat (81) is located at the outer edge of the lower chassis (1) and is fixed with the lower chassis (1) by the lower pull seat screw (811), the upper pull seat (82) is located at the outer edge of the rotating disc (3) and is fixed with the rotating disc (3) by the upper pull seat screw (821), the upper pull seat (82) and the lower pull seat (81) are mutually restrained and matched, the cross-sectional shape of the lower pull seat (81) is L-shaped, and the cross-sectional shape of the upper pull seat (82) is L-shaped and is inserted into the lower pull seat cavity (812) of the lower pull seat (81); In the use state, the lower pull seat screw (811) is also fixed with the chassis fixing plate located below the lower chassis (1); On the lower chassis (1) and outside the lower chassis outer boss (14), the chassis fixing plate fixing screw (16) is also arranged at intervals around the circumference of the lower chassis (1), and the upper pull seat screw (821) is also fixed with the automobile seat in the use state.

10. The automotive seat swivel device of claim 9, wherein: The rotating disc locking and unlocking actuator (6) comprises a lock shaft (61), a lock shaft traction arm (62), a lock tongue (63), a reset torsion spring (64) and an outer sheath fixing plate (65), the middle part of the lock shaft (61) is rested on the pair of lock shaft supporting seats (34) formed on the rotating disc (3), the two ends of the lock shaft (61) are rotatably supported on the lock shaft pivot seats (35) formed on the rotating disc (3) and respectively located on the two sides of the pair of lock shaft supporting seats (34), the lock shaft traction arm (62) is sleeved on one end of the lock shaft (61) towards the outer sheath fixing plate (65) and is limited by the traction arm limiting pieces (613) arranged on the lock shaft (61) and respectively located on the two sides of the lock shaft traction arm (62), one end of the zipper pull rope (73) towards the rotating disc locking and unlocking actuator (6) is fixed with the lock shaft traction arm (62), the zipper pull rope outer sheath (731) is fixed with the outer sheath fixing plate (65), and the outer sheath fixing plate (65) is fixed with the upper side of the rotating disc (3), the lock tongue (63) has a lock tongue sleeve (631) which is sleeved on the lock shaft (61) at the position corresponding to the lock tongue accommodation cavity (341) and is limited by the limiting feet (611) arranged on the lock shaft (61) at the position corresponding to the limiting feet grooves (6311) opened on the lock tongue sleeve (631), when the lock tongue (63) is inserted into the lock tongue hole (141), the rotating disc (3) is locked with the lower chassis (1), and when the lock tongue (63) is withdrawn from the lock tongue hole (141), the rotating disc (3) is unlocked with the lower chassis (1), the reset torsion spring (64) is sleeved on the lock shaft (61), the first torsion spring foot (641) of the reset torsion spring (64) abuts against the lower side of the rotating disc (3), and the second torsion spring foot (642) of the reset torsion spring (64) abuts against the torsion spring foot resisting screw (612) fixed on the lock shaft (61).

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