A universal seat rotation mechanism

Abstract

The invention discloses a universal seat rotation mechanism, comprising a base, a motor fixed inside the base, a motor shaft passing through the base, a locker mounted on the motor shaft, a synchronizer mounted in cooperation with the locker, a slip ring connector and a turntable mounted on the base, an adapter bracket fixed on the turntable, the locker comprising a dynamic locker and a fixed locker, the dynamic locker being placed on the fixed locker and matched by a groove and a protrusion, the synchronizer and the dynamic locker being matched by a special-shaped concave-convex structure, the turntable comprising a fixed connecting ring and a dynamic connecting cylinder, the fixed connecting ring being sleeved in a concave ring of the dynamic connecting cylinder, the fixed connecting ring being fixed to the outer edge of the base, the adapter bracket being fixed to the dynamic connecting cylinder, and the locker being exposed through a hollow area on the adapter bracket. The base is allowed to be non-coaxial with the rotating parts of the car seat, manufacturing and assembly errors can be compensated, and the selection of the locker type is increased.

Description

Technical Field

[0001] The invention relates to a car seat rotating mechanism, in particular to a universal seat rotating mechanism. Background Art

[0002] Existing automobile seat rotation mechanisms, such as: Patent No. 201911059372.0, patent name "Automobile seat and electric seat rotation mechanism", discloses a base and a turntable rotatably connected to the base, a turntable drive device and a locking device for locking the turntable and the base, the turntable drive device includes a drive motor, an arc-shaped rack and a drive shaft, wherein the drive motor is fixedly arranged on the turntable, the arc-shaped rack is fixedly arranged on the base, the drive shaft is connected to the output end of the drive motor and extends to the arc-shaped rack, and the drive shaft is provided with a drive gear meshing with the arc-shaped rack.

[0003] Problems with this structure:

[0004] (1) Low anti-overturning moment;

[0005] (2) The product is not modular, and sub-functions cannot be applied independently or changed individually;

[0006] (3) Complex structure and large number of parts.

[0007] (4) Assembly performance can only be ensured by improving manufacturing and assembly accuracy;

[0008] (5) There should be no wiring harness between the rotating moving part and the fixed part;

[0009] (6) The rotating moving part and the fixed part need to be coaxial;

[0010] (7) It can only bear load at specific angles / positions, and its application is limited. Summary of the invention

[0011] The purpose of the present invention is to solve the above deficiencies in the prior art and provide a universal seat rotation mechanism.

[0012] In order to achieve the above objectives, the following technical solutions are provided:

[0013] A universal seat rotation mechanism comprises a base, a motor is fixed inside the base, the motor shaft passes through the base, a locker is installed on the motor shaft, a synchronizer is installed in cooperation with the locker, a slip ring connector and a turntable are installed on the base, and an adapter bracket is fixed on the turntable, the locker comprises a dynamic lock and a fixed lock, the dynamic lock is placed on the fixed lock and cooperates through a groove and a protrusion, the synchronizer and the dynamic lock cooperate through a special-shaped concave-convex structure, the turntable comprises a fixed connecting ring and a dynamic connecting cylinder, the fixed connecting ring is sleeved in the concave ring of the dynamic connecting cylinder, the fixed connecting ring is fixed to the outer edge of the base, the adapter bracket is fixed on the dynamic connecting cylinder, and the locker is exposed through a hollow area on the adapter bracket.

[0014] Preferably, the synchronizer includes a middle block, an upper block placed in the upper strip groove of the middle block and a lower block placed in the lower strip groove of the middle block, a matching piece is fixed to the lower part of the lower block, the inner ring shape of the matching piece is irregular, and the upper part of the dynamic lock is a irregular protrusion that matches the inner ring shape of the matching piece.

[0015] Preferably, it also includes a slip ring connector, which includes a fixed ring and a moving cylinder, the fixed ring is sleeved outside the moving cylinder, the fixed ring is fixed in the base, the moving cylinder is sleeved outside the locker and the synchronizer, and the moving connecting cylinder is sleeved outside the moving cylinder.

[0016] Preferably, the motor shaft is a spline shaft, and the fixed lock includes an inner spline cylindrical cylinder, which cooperates with the spline shaft to rotate, and the inner spline cylindrical cylinder has a groove on the outside. The dynamic lock includes an inner hole, and the inner hole includes a protrusion. The inner spline cylindrical cylinder cooperates with the inner hole, and the groove and the protrusion cooperate to realize that the fixed lock drives the dynamic lock to rotate.

[0017] Preferably, the fixed ring is provided with connecting ears outside, and the connecting ears are fixed on the base.

[0018] Preferably, a connector is fixed outside the movable cylinder, a boss is provided at the lower part of the movable cylinder, and the fixed ring is sleeved on the boss.

[0019] Beneficial effects:

[0020] (1) Allowing the base and the rotating parts of the car seat to be non-coaxial, compensating for manufacturing and assembly errors, and increasing the choice of lock types.

[0021] (2) The coordination of various components is simple and can be flexibly adjusted according to environmental requirements;

[0022] (3) The problem of wiring harness arrangement between the turntable and the base is solved by a slip ring connector, achieving the effect of no angle restriction.

[0023] (4) Modular design, each component is relatively independent and can be changed in size according to needs without affecting the overall performance;

[0024] (5) The turntable structure has a high anti-overturning torque capacity, can adapt to harsh working conditions, and has no restrictions on the position of use (the load-bearing capacity is the same over the entire circumference). BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The exploded diagram of the seat rotation mechanism with infinite locking;

[0026] Figure 2 It is a schematic diagram of the overall structure of the stepless locking seat rotation mechanism;

[0027] Figure 3 It is a schematic diagram of the dynamic locking structure;

[0028] Figure 4 is a schematic diagram of a fixed locking structure;

[0029] Figure 5 This is the exploded view of the synchronizer;

[0030] Figure 6 It is a schematic diagram of the synchronizer structure;

[0031] Figure 7 This is the exploded view of the slip ring connector;

[0032] Figure 8 It is the top view of the fixed ring;

[0033] Fig. 9 A top view of the seat rotation mechanism with stepless locking;

[0034] Fig.10 For along Fig. 9 Section view along cutting direction AA. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0036] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0037] In addition, in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figure 1-2 A universal seat rotation mechanism shown in the figure comprises a base 10, a motor is fixed inside the base 10, the motor shaft passes through the base 10, a locker 20 installed on the motor shaft 11, a synchronizer 30 installed in cooperation with the locker 20, a turntable 50 installed on the base 10, and an adapter bracket 60 fixed on the turntable 50, as shown in FIG. Figure 3-4 The locker 20 shown includes a dynamic locker 22 and a fixed locker 21, the dynamic locker 22 is placed on the fixed locker 21, and cooperates with the groove 206 and the protrusion 204, the synchronizer 30 cooperates with the dynamic locker 22 through a special-shaped concave-convex structure, the turntable 50 includes a fixed connecting ring 52 and a dynamic connecting cylinder 51, the fixed connecting ring 52 is sleeved in the concave ring of the dynamic connecting cylinder 51, the fixed connecting ring 52 is fixed to the outer edge of the base 10, the adapter bracket 60 is fixed on the dynamic connecting cylinder 51, and the locker 20 is exposed through the hollow area on the adapter bracket 60. Mainly, the upper block is exposed.

[0039] like Figure 5-6 The synchronizer 30 shown includes a middle block 32, an upper block 33 placed in an upper strip groove 35 of the middle block 32, and a lower block 31 placed in a lower strip groove 34 of the middle block 32. A matching piece 301 is fixed to the lower part of the lower block 31, and the inner ring shape of the matching piece 301 is irregular. The upper part of the dynamic lock 22 is a special-shaped protrusion 205 that matches the inner ring shape of the matching piece 301.

[0040] like Figure 7The figure also includes a slip ring connector 40, which includes a fixed ring 41 and a moving cylinder 42. The fixed ring 41 is sleeved outside the moving cylinder 42, the fixed ring 41 is fixed in the base 10, the moving cylinder 42 is sleeved outside the locker 20 and the synchronizer 30, and the moving connecting cylinder 51 is sleeved outside the moving cylinder 42. A connector 402 is fixed outside the moving cylinder 42, a boss 401 is provided at the lower part of the moving cylinder 42, and the fixed ring 41 is sleeved on the boss 401. The connector 402 is connected to the electrical connection line, and can drive the moving connecting cylinder 51 to rotate at will.

[0041] The motor shaft 11 is a spline shaft, and the fixed lock 21 includes an inner spline cylindrical barrel 202, which rotates in cooperation with the spline shaft, and the inner spline cylindrical barrel 202 has a groove 206 on the outside. The dynamic lock 22 includes an inner hole, and the inner hole includes a protrusion 204. The inner spline cylindrical barrel 202 cooperates with the inner hole, and the groove 206 cooperates with the protrusion 204 to achieve the fixed lock 21 driving the dynamic lock 22 to rotate.

[0042] like Figure 8 The fixed ring 402 shown has a connecting ear 402 outside, and the connecting ear 402 is fixed on the base 10.

[0043] Working principle: the fixed lock 21 of the motor shaft with the fixed lock rotates, the fixed lock 21 drives the dynamic lock 22 to rotate, the dynamic lock 22 drives the lower block 31 of the synchronizer to rotate through the special-shaped protrusion 205, and the lower block 31 drives the upper block 33 to rotate through the middle block 32.

[0044] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A universal seat rotation mechanism, characterized in that: It includes a base, a motor is fixed inside the base, the motor shaft passes through the base, a locker installed on the motor shaft, a synchronizer installed in cooperation with the locker, a slip ring connector and a turntable installed on the base, and an adapter bracket fixed on the turntable, wherein the locker includes a dynamic locker and a fixed locker, the dynamic locker is placed on the fixed locker, and cooperates with the groove and the protrusion, the synchronizer and the dynamic locker cooperate with each other through a special-shaped concave-convex structure, the turntable includes a fixed connecting ring and a dynamic connecting cylinder, the fixed connecting ring is sleeved in the concave ring of the dynamic connecting cylinder, the fixed connecting ring is fixed to the outer edge of the base, the adapter bracket is fixed on the dynamic connecting cylinder, and the upper block is exposed through the hollow area of ​​the adapter bracket; The synchronizer comprises a middle block, an upper block placed in an upper strip groove of the middle block and a lower block placed in a lower strip groove of the middle block, a matching piece is fixed to the lower part of the lower block, the inner ring shape of the matching piece is a special shape, and the upper part of the dynamic lock is a special shape protrusion matching the inner ring shape of the matching piece; The slip ring connector includes a fixed ring and a moving cylinder. The fixed ring is sleeved outside the moving cylinder, the fixed ring is fixed in the base, the moving cylinder is sleeved outside the locker and the synchronizer, the moving connecting cylinder is sleeved outside the moving cylinder, a wiring connector is fixed outside the moving cylinder, a boss is provided at the bottom of the moving cylinder, the fixed ring is sleeved on the boss, the wiring connector is connected to the electrical connecting wire, and can drive the moving connecting cylinder to rotate at will.

2. A universal seat rotation mechanism according to claim 1, characterized in that: The motor shaft is a spline shaft, and the fixed lock includes an inner spline cylindrical cylinder, which cooperates with the spline shaft to rotate, and the inner spline cylindrical cylinder has a groove on the outside. The dynamic lock includes an inner hole, and the inner hole includes a protrusion. The inner spline cylindrical cylinder cooperates with the inner hole, and the groove and the protrusion cooperate to realize that the fixed lock drives the dynamic lock to rotate.

3. A universal seat rotation mechanism according to claim 1, characterized in that: A connecting ear is arranged outside the fixed ring, and the connecting ear is fixed on the base.

4. A universal seat rotation mechanism according to claim 1, characterized in that: A wiring connector is fixed outside the moving cylinder, a boss is arranged at the lower part of the moving cylinder, and a fixed ring is sleeved on the boss.

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