Anti-locking seat angle adjuster

Abstract

The utility model discloses an anti-jamming seat angle adjuster, which belongs to the technical field of seat angle adjusters and comprises a base framework, a connecting rod mechanism, a driving mechanism and a collision detection mechanism, the connecting rod mechanism comprises connecting plates, fixed discs and a rotary seat, the connecting plates are fixedly assembled at two ends of the base framework, the fixed discs are assembled on the connecting plates, and the rotary seat is fixedly assembled on the base framework. The driving mechanism comprises side rotating arms, a guide groove and a shaft connecting rod, the two side rotating arms are rotationally assembled on the base framework, shaft holes are formed in the tail ends of the side rotating arms, driven teeth are rotationally assembled on the shaft holes, a rotating shaft rod is arranged between the shaft holes, and the rotating shaft rod is in linkage connection with the two driven teeth. The driving mechanism capable of movably unlocking is arranged between the connecting rod mechanisms connected with the two groups of backrest frameworks, so that when a vehicle is collided, the unlocking action can be quickly performed through the collision detection mechanism, the situation that the connecting rod structures are bent and stuck due to collision is prevented, and personnel can conveniently evacuate or rescue.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat angle adjusters, and in particular relates to an anti-stuck seat angle adjuster. Background Art

[0002] The seat recliner is a very important component of the seat, which is used to adjust the posture of the seat back. The recliner is generally installed in the area where the seat back and the seat cushion are connected. It consists of a seat back connecting plate, a seat connecting plate, a core component, a handwheel or an adjustment handle, a return spring and other parts.

[0003] Referring to a large amount of automobile collision accident data, when a vehicle collision accident occurs, the external impact invades the space inside the vehicle, which can easily cause the vehicle seat to absorb energy, thereby causing the internal connecting rod structure to deform and cause structural jamming, which not only makes it difficult for passengers to evacuate the space inside the vehicle, but also affects the rescue process of rescue personnel. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the embodiments of the present utility model is to provide an anti-stuck seat recliner to solve the problems in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An anti-stuck seat recliner includes a base assembly, wherein the base assembly includes a base frame, and the anti-stuck seat recliner also includes:

[0007] A connecting rod mechanism, the connecting rod mechanism comprises a connecting plate, a fixed disk and a swivel seat, two groups of connecting plates are fixedly assembled at both ends of the base frame, and the connecting plate is fixedly assembled with a fixed disk, and the other end of the fixed disk is also rotatably assembled with a swivel seat, and the end of the swivel seat is connected with a transmission gear;

[0008] A driving mechanism, the driving mechanism comprising a side rotating arm, a guide groove and an axial connecting rod, one end of the two groups of side rotating arms is rotatably assembled on the base frame, and the other end is arranged near one side of the transmission gear, a guide groove is arranged in the middle of the side rotating arm, an axial hole is arranged at the end of the side rotating arm, a driven gear is rotatably assembled on the axial hole, an axial connecting rod is also arranged between the two groups of axial holes, two ends of the axial connecting rod are respectively fixedly connected with the two groups of side rotating arms, a rotating shaft rod is rotatably assembled inside the axial connecting rod, and the rotating shaft rod is respectively linked and connected with the two groups of driven gears; and

[0009] A collision detection mechanism is arranged in the base frame and is used to drive the rotation of the side rotating arm.

[0010] As a further solution of the utility model, the base assembly also includes a guide rod and an elastic member, the guide rod is fixedly assembled at the bottom of the base frame and slidably arranged in the guide groove, and the elastic member is movably assembled between the side swivel arm and the base frame.

[0011] As a further solution of the utility model, the driving mechanism also includes a mounting plate, a driver and a synchronous belt. The mounting plate is arranged in the middle part of the side swivel arm. The driver is fixedly installed between the two groups of mounting plates. The driver is equipped with a synchronous belt, and the synchronous belt is linked to the rotating shaft rod.

[0012] As a further solution of the utility model, the driving mechanism also includes a limiting groove, which is arranged on the side rotating arm and is arranged close to one side of the base frame.

[0013] As a further solution of the utility model, the collision detection mechanism includes an electric push rod, a driving arm and a collision sensor. The electric push rod is rotatably assembled in the base frame and a driving arm is arranged at the end thereof. The driving arm is limitedly slidably assembled in the limiting groove, and the electric push rod is electrically connected to the collision sensor.

[0014] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0015] The utility model provides a movable unlocking driving mechanism between the connecting rod mechanisms connecting the two groups of backrest frames, so that when a vehicle collides, the unlocking action can be quickly performed through the collision detection mechanism to prevent the connecting rod structure from bending and getting stuck due to the collision, which can facilitate the evacuation of personnel or rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of an anti-stuck seat recliner provided in one embodiment of the utility model.

[0017] Figure 2 The present invention is a schematic structural diagram of an anti-stuck seat recliner provided in one embodiment of the present invention.

[0018] Figure 3 The figure is a schematic side structural diagram of an anti-stuck seat recliner provided in one embodiment of the utility model.

[0019] Figure 4 The present invention is a three-dimensional structural schematic diagram of a driving mechanism in an anti-stuck seat recliner provided in an embodiment of the present invention.

[0020] Figure markings: 1-base assembly, 101-base frame, 102-guide rod, 103-elastic member, 2-connecting rod mechanism, 201-connecting plate, 202-fixed plate, 203-swivel seat, 204-transmission gear, 3-driving mechanism, 301-side rotating arm, 302-limiting groove, 303-mounting plate, 304-axial hole, 305-guide groove, 306-axial connecting rod, 307-rotating shaft rod, 308-driven gear, 309-driver, 310-synchronous belt, 4-collision detection mechanism, 401-electric push rod, 402-driving arm, 403-collision sensor, 5-backrest frame. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figure 1-4 As shown, an anti-stuck seat angle adjuster in an embodiment of the utility model includes a base assembly 1, the base assembly 1 includes a base frame 101, and the anti-stuck seat angle adjuster also includes: a connecting rod mechanism 2, the connecting rod mechanism 2 includes a connecting plate 201, a fixed disk 202 and a swivel seat 203, two groups of the connecting plates 201 are fixedly assembled at both ends of the base frame 101, and the connecting plates 201 are fixedly assembled with fixed disks 202, and the other end of the fixed disk 202 is also rotatably assembled with a swivel seat 203, and the end of the swivel seat 203 is connected with a transmission tooth 204; a driving mechanism 3, the driving mechanism 3 includes a side swivel arm 301, a guide groove 305 and an axial connecting rod 306, and the two groups of the side swivel arms 30 One end of the side rotating arm 301 is rotatably mounted on the base frame 101, and the other end is arranged near the side of the transmission gear 204. A guide groove 305 is arranged in the middle of the side rotating arm 301, and an axial hole 304 is arranged at the end of the side rotating arm 301. A driven tooth 308 is rotatably mounted on the axial hole 304. A shaft connecting rod 306 is also arranged between the two groups of the axial holes 304. The two ends of the shaft connecting rod 306 are respectively fixedly connected with the two groups of side rotating arms 301. A rotating shaft rod 307 is rotatably mounted inside the shaft connecting rod 306. The rotating shaft rod 307 is respectively linked and connected with the two groups of driven teeth 308; and a collision detection mechanism 4, which is arranged in the base frame 101 and is used to drive the rotation of the side rotating arm 301.

[0023] In actual application of this embodiment, when the anti-stuck seat recliner is working, the backrest frame 5 is fixedly assembled on the swivel seat 203 and rotates relative to the fixed plate 202. When the seat is in normal working condition, the driven teeth 308 at the ends of the two sets of side rotating arms 301 are respectively pressed on the two sets of transmission teeth 204 and meshed with the two sets of transmission teeth 204. When the seat angle needs to be adjusted, it is only necessary to drive the two sets of driven teeth 308 to rotate in the same direction to drive the two sets of transmission teeth 204 to rotate in a directional manner, so that the backrest frame 5 is tilted and rotated. When the vehicle is driving, During the process, if the vehicle suffers a lateral or longitudinal collision, the collision detection mechanism 4 can monitor the collision information of the vehicle and control the side swivel arm 301 to rotate toward the side away from the transmission tooth 204, so that the driven tooth 308 and the transmission tooth 204 are disengaged from the lock. At this time, a cavity is left between the two sets of transmission teeth 204 to reserve a collision space, so that the backrest frame 5 can rotate freely on one side of the connecting plate 201, which can effectively prevent the seat from being stuck due to the bending of the internal connecting rod after a collision, so that the seat back can be quickly unlocked, which is convenient for personnel to evacuate or rescue.

[0024] like Figure 2 As shown, in a preferred embodiment of the utility model, the base assembly 1 also includes a guide rod 102 and an elastic member 103, the guide rod 102 is fixedly assembled at the bottom of the base frame 101 and slidably arranged in the guide groove 305, and the elastic member 103 is movably assembled between the side swivel arm 301 and the base frame 101.

[0025] In actual application of this embodiment, the guide rod 102 is slidably arranged in the guide groove 305, and can be elastically abutted against the side rotating arm 301 through the elastic member 103 sleeved outside the guide rod 102, so that the driven tooth 308 is elastically pressed against the transmission tooth 204 under normal working conditions, thereby maintaining the meshing state.

[0026] like Figure 3 As shown, in a preferred embodiment of the utility model, the driving mechanism 3 also includes a mounting plate 303, a driver 309 and a synchronous belt 310. The mounting plate 303 is arranged in the middle of the side rotating arm 301. The driver 309 is fixedly installed between the two groups of the mounting plates 303. The driver 309 is equipped with a synchronous belt 310, and the synchronous belt 310 is linked to the rotating shaft rod 307.

[0027] In actual application of this embodiment, the driver 309 fixedly installed between the two groups of mounting plates 303 can be linked to the rotating shaft rod 307 through the synchronous belt 310, and the driven teeth 308 at both ends of the rotating shaft rod 307 can be driven to rotate by controlling the rotation of the driver 309, and the driven teeth 308 are engaged to drive the transmission teeth 204 to rotate, thereby realizing transmission, and the rotation angle of the backrest frame 5 can be freely adjusted.

[0028] like Figure 2 and Figure 4 As shown, in a preferred embodiment of the present embodiment, the driving mechanism 3 also includes a limit groove 302, and the limit groove 302 is arranged on the side rotating arm 301 and is arranged close to the side of the base frame 101, and the collision detection mechanism 4 includes an electric push rod 401, a driving arm 402 and a collision sensor 403, the electric push rod 401 is rotatably assembled in the base frame 101 and a driving arm 402 is arranged at the end thereof, the driving arm 402 is limitedly slidably assembled in the limit groove 302, and the electric push rod 401 is electrically connected to the collision sensor 403.

[0029] In actual application of this embodiment, the electric push rod 401 is rotatably assembled in the base frame 101, and the driving arm 402 at its end can be slidably mounted in the limit groove 302. When the collision sensor 403 detects the signal generated by the collision, the driving arm 402 at one end of the electric push rod 401 can be controlled to extend forward quickly, thereby pushing the side rotating arm 301 to move clockwise around the fixed axis, so that the driven tooth 308 moves toward the side away from the transmission tooth 204 to complete the unlocking.

[0030] The above-mentioned embodiment of the utility model provides an anti-stuck seat recliner, which is provided with a movable unlocking driving mechanism 3 between the connecting rod mechanism 2 connected with two sets of backrest frames 5. When a vehicle collides, the collision detection mechanism 4 can quickly perform an unlocking action to prevent the connecting rod structure from bending due to the collision and causing jamming, which can facilitate the evacuation of personnel or rescue.

[0031] In the description of the present invention, it should be understood that the terms "upper", "one side", "inside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the anti-stuck seat recliner or component referred to must have a specific orientation, be constructed and operated in a specific orientation. In addition, it should be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "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; it can be the internal connection of two components or the interaction relationship between two components. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-stuck seat recliner, comprising a base assembly, wherein the base assembly comprises a base frame, characterized in that: The anti-stuck seat angle adjuster also includes: A connecting rod mechanism, the connecting rod mechanism comprises a connecting plate, a fixed disk and a swivel seat, two groups of connecting plates are fixedly assembled at both ends of the base frame, and the connecting plate is fixedly assembled with a fixed disk, and the other end of the fixed disk is also rotatably assembled with a swivel seat, and the end of the swivel seat is connected with a transmission gear; A driving mechanism, the driving mechanism comprising a side rotating arm, a guide groove and an axial connecting rod, one end of the two groups of side rotating arms is rotatably assembled on the base frame, and the other end is arranged near one side of the transmission gear, a guide groove is arranged in the middle of the side rotating arm, an axial hole is arranged at the end of the side rotating arm, a driven gear is rotatably assembled on the axial hole, an axial connecting rod is also arranged between the two groups of axial holes, two ends of the axial connecting rod are respectively fixedly connected with the two groups of side rotating arms, a rotating shaft rod is rotatably assembled inside the axial connecting rod, and the rotating shaft rod is respectively linked and connected with the two groups of driven gears; and A collision detection mechanism is arranged in the base frame and is used to drive the rotation of the side rotating arm.

2. The anti-stuck seat recliner according to claim 1, characterized in that: The base assembly also includes a guide rod and an elastic member. The guide rod is fixedly assembled at the bottom of the base frame and slidably arranged in the guide groove. The elastic member is movably assembled between the side rotating arm and the base frame.

3. The anti-stuck seat recliner according to claim 1, characterized in that: The driving mechanism also includes a mounting plate, a driver and a synchronous belt. The mounting plate is arranged in the middle of the side rotating arm. The driver is fixedly installed between the two groups of mounting plates. The driver is equipped with a synchronous belt, and the synchronous belt is linked to the rotating shaft rod.

4. The anti-stuck seat recliner according to claim 1, characterized in that: The driving mechanism further comprises a limiting groove, which is arranged on the side rotating arm and close to one side of the base frame.

5. The anti-stuck seat recliner according to claim 4, characterized in that: The collision detection mechanism includes an electric push rod, a driving arm and a collision sensor. The electric push rod is rotatably assembled in the base frame and a driving arm is arranged at the end thereof. The driving arm is limitedly slidably assembled in the limiting groove. The electric push rod is electrically connected to the collision sensor.

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