Automobile seat with backrest capable of being adjusted in multi-stage mode

Abstract

The utility model relates to the technical field of automobile seats, in particular to an automobile seat with a backrest capable of being adjusted in a multi-stage mode. Comprising a seat body, a mounting seat, a backrest body and an adjusting mechanism, the adjusting mechanism comprises a motor seat, a driving motor, a bearing seat, a screw rod, a moving block, a connecting rod, a guide device and a detection device, when the angle of the backrest body needs to be adjusted, the driving motor is controlled to rotate forwards and backwards to drive the screw rod to rotate, and the screw rod is in threaded fit with the moving block; meanwhile, the moving block is in sliding fit with the guide device, so that the screw rod can drive the moving block to horizontally move to achieve position change after rotating, then the angle of the connecting rod is changed when the position of the moving block is changed, and therefore angle adjustment of the backrest body is achieved, and the detection device is used for detecting the position of the moving block to achieve limiting treatment during adjustment. Therefore, the problem that the angle of a backrest cannot be adjusted when an existing automobile seat is used can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, especially to a backrest multistage adjustment's automobile seat. BACKGROUND

[0002] With the improvement of people's living standards, more and more families are equipped with cars. In the driving process, some harmful gases such as exhaust gas will flow into the car through the window, in addition, the phenomenon of smoking in the car is also more and more common, and such an air environment in the car may cause some health hazards. However, the existing automobile seat has single function and does not have the function of air purification in the car.

[0003] The prior art CN215850648U discloses an automobile seat, which comprises an automobile seat body and an automobile seat backrest, the automobile seat backrest is provided with a cavity, one side of the automobile seat backrest is provided with a hollow part in communication with the cavity; a smoke purification device, a smoke absorption device and a translation mechanism are arranged in the cavity, the smoke purification device is located below the smoke absorption device and the translation mechanism, the smoke absorption device is in communication with the smoke purification device through a hose; the smoke absorption device is connected with the translation mechanism through a rotating disc, and the smoke absorption device is translated out of the automobile seat backrest through the translation mechanism to realize smoke absorption. The utility model discloses an automobile seat, which is designed skillfully, and the smoke purification device, the smoke absorption device and the translation mechanism are arranged in the automobile seat backrest, the smoke absorption device is translated out of the automobile seat backrest through the translation mechanism to realize smoke absorption, so that the air in the car is purified.

[0004] However, the backrest of the above-mentioned automobile seat cannot be adjusted in angle during use, which is inconvenient to use. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a backrest multistage adjustment's automobile seat, which aims at solving the problem that the backrest of the existing automobile seat cannot be adjusted in angle during use.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a backrest multistage adjustment's automobile seat, which comprises a seat body, a backrest body is rotatably installed on the rear side of the seat body through a fixedly installed mounting seat, and further comprises an adjusting mechanism.

[0007] The adjusting mechanism comprises a motor base, a driving motor, a bearing base, a screw rod, a moving block, a connecting rod, a guide device and a detection device, the motor base is fixed on the bottom of the seat body, the driving motor is electrically connected with the vehicle electric control system and is fixed on the motor base and is provided with a band brake mechanism, the bearing base is fixedly connected with the seat body and is located on the side of the seat body close to the motor base and is provided with two bearing bases at intervals, the screw rod is rotatably connected with the bearing base and is connected with the output shaft of the driving motor through a shaft coupling, the moving block is threadedly connected with the screw rod and is slidably connected with the guide device and is arranged between the bearing bases, the connecting rod is rotatably connected with the moving block and the back body through mounting pins, the guide device is arranged between the bearing bases, and the detection device is arranged on the side of the seat body close to the moving block.

[0008] The seat body side is provided with a control button group for adjusting the back body, and the control button group is electrically connected with the vehicle electric control system.

[0009] The guide device comprises a guide rod and a fixed disc, the guide rod is slidably connected with the bearing base and the moving block, and the fixed disc is integrally formed with the guide rod and is fixedly connected with the rear bearing base.

[0010] The detection device comprises a first switch frame and a second switch frame, the first switch frame is electrically connected with the vehicle electric control system and is arranged on the side of the seat body close to the moving block, and the second switch frame is electrically connected with the vehicle electric control system and is arranged on the side of the seat body away from the first switch frame.

[0011] The top of the back body is provided with a hanging column, and the hanging columns are symmetrically arranged.

[0012] The back body angle adjusting automobile seat of the utility model, when the back body angle needs to be adjusted, the driving motor is controlled to rotate reversely to drive the screw rod to rotate, the screw rod is threadedly connected with the moving block, and the moving block is slidably connected with the guide device, so that the screw rod can drive the moving block to move horizontally after rotating to change the position, then the angle of the connecting rod will change when the position of the moving block changes, thereby realizing the angle adjustment of the back body, and the detection device is used for detecting the position of the moving block to realize the limit position processing during adjustment, thereby solving the problem that the back body of the existing automobile seat cannot be adjusted in angle during use. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.

[0014] Figure 1It is the whole structure schematic diagram of the back multi-stage adjustment automobile seat of the first embodiment of the utility model.

[0015] Figure 2 It is the structure schematic diagram of the moving block of the first embodiment of the utility model.

[0016] Figure 3 It is the structure schematic diagram of the mounting pin of the first embodiment of the utility model.

[0017] Figure 4 It is the whole structure schematic diagram of the back multi-stage adjustment automobile seat of the second embodiment of the utility model.

[0018] In the figure: 101-seat body, 102-mounting seat, 103-back body, 104-motor seat, 105-driving motor, 106-bearing seat, 107-screw rod, 108-moving block, 109-connecting rod, 110-mounting pin, 111-control button group, 112-guide rod, 113-fixed disc, 114-first switch frame, 115-second switch frame, 201-hanging column. DETAILED DESCRIPTION

[0019] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the utility model, and can not be understood as the limitation of the utility model.

[0020] Embodiment one:

[0021] As shown in the figure, wherein Figures 1 to 3 It is the whole structure schematic diagram of the back multi-stage adjustment automobile seat, Figure 1 It is the structure schematic diagram of the moving block 108, Figure 2 It is the structure schematic diagram of the mounting pin 110, the utility model provides a kind of back multi-stage adjustment automobile seat: including seat body 101, mounting seat 102, back body 103 and adjusting mechanism, the adjusting mechanism includes motor seat 104, driving motor 105, bearing seat 106, screw rod 107, moving block 108, connecting rod 109, guide device and detection device, the guide device includes guide rod 112 and fixed disc 113, the detection device includes first switch frame 114 and second switch frame 115.It can solve the problem that backrest cannot be angle adjusted when using the existing automobile seat by the foregoing scheme, it can be understood that the foregoing scheme can realize automobile seat backrest angle adjustment. Figure 3

[0022] ​In the embodiment, the seat body 101 rear side is rotatably installed with a backrest body 103 through a fixedly installed mounting seat 102, both sides of the backrest body 103 are respectively installed on the mounting seat 102 through rotating bearings, and the mounting seat 102 is fixed on the seat body 101 through bolts.

[0023] The motor seat 104 is fixed at the bottom of the seat body 101, the driving motor 105 is electrically connected with the vehicle electronic control system and is fixed on the motor seat 104, and has a band brake mechanism, the bearing seat 106 is fixedly connected with the seat body 101 and is located on the side of the seat body 101 close to the motor seat 104, and two are spaced apart, the screw rod 107 is rotatably connected with the bearing seat 106 and is connected with the output shaft of the driving motor 105 through a shaft coupling, the moving block 108 is threadedly connected with the screw rod 107 and is slidably matched with the guide device, and is arranged between the bearing seats 106, the connecting rod 109 is rotatably connected with the moving block 108 and the backrest body 103 through mounting pins 110, the guide device is arranged between the bearing seats 106, and the detection device is arranged on the side of the seat body 101 close to the moving block 108. The motor seat 104 is fixed through bolts, the driving motor 105 is fixed on the motor seat 104 through bolts and is electrically connected with the vehicle electronic control system through a power line, the two bearing seats 106 are respectively fixed through bolts, the screw rod 107 is rotatably connected with the bearing seats 106 arranged in front of and behind the seat body 101, and the front end of the screw rod 107 is connected with the output shaft of the driving motor 105 through a shaft coupling, the moving block 108 is provided with a threaded hole and is drivingly matched with the screw rod 107, the guide device is used for linear movement of the moving block 108, the connecting rod 109 is fixed on the moving block 108 and the backrest body 103 through mounting pins 110 on both sides to realize fixation and rotation, and the detection device is used for detecting the position of the moving block 108 during adjustment, so as to facilitate limiting treatment.

[0024] Secondly, the seat body 101 side is provided with a control key group 111 for adjusting the backrest body 103, and the control key group 111 is electrically connected with the vehicle electronic control system. The control key group 111 is used for angle adjustment control of the backrest body 103, mainly for controlling forward and reverse rotation of the driving motor 105.

[0025] Then, the guide rod 112 is slidably connected to the bearing seat 106 and the moving block 108 respectively; the fixed plate 113 is integrally formed with the guide rod 112 and fixedly connected to the rear bearing seat 106. The guide rod 112 can be directly inserted into the round holes of the two bearing seats 106, and a sliding hole is provided on the moving block 108 to cooperate with the guide rod 112. The fixed plate 113 is fixed by bolts and integrally formed with the guide rod 112 to form a T-shaped structure to ensure stability.

[0026] Finally, the first switch frame 114 is electrically connected to the vehicle's electronic control system and is located on the side of the seat body 101 near the movable block 108; the second switch frame 115 is electrically connected to the vehicle's electronic control system and is located on the side of the seat body 101 away from the first switch frame 114. The first switch frame 114 and the second switch frame 115 are each equipped with a detection switch for detecting the forward and backward movement position of the movable block 108. The detection switches are electrically connected to the vehicle's electronic control system via power lines. When one detection switch detects a signal from the movable block 108, the movable block 108 moves to its maximum position on that side. Then, the drive motor 105 can be reversed via the control button group 111, causing the movable block 108 to move to the other side for further adjustment.

[0027] When using this invention to solve the problem of existing car seats where the backrest angle cannot be adjusted during use, and when the angle of the backrest body 103 needs to be adjusted, the control button group 111 controls the forward and reverse rotation of the drive motor 105, thereby driving the screw 107 to rotate. The screw 107 is threadedly engaged with the moving block 108, and the moving block 108 is slidably engaged with the guide rod 112. This allows the screw 107 to rotate and drive the moving block 108 to move horizontally, changing its position. When the position of the moving block 108 changes, the angle of the connecting rod 109 will change accordingly, thereby achieving the angle adjustment of the backrest body 103. The detection device is used to detect the position of the moving block 108, implement limit processing during adjustment, and can be used to set the adjustment range, thus solving the problem of existing car seats where the backrest angle cannot be adjusted during use.

[0028] Example 2:

[0029] like Figure 4 As shown, where Figure 4 This is a schematic diagram of the overall structure of a car seat with multi-level adjustable backrest. Based on the first embodiment, this utility model provides a car seat with multi-level adjustable backrest. The backrest body 103 is provided with a hanging column 201 on the top, and the hanging columns 201 are symmetrically arranged.

[0030] In the present embodiment, by symmetrically arranging the hanging columns 201 on the top of the backrest body 103, the rear side of the seat body 101 can be used for hanging and placing articles by the person sitting on it.

[0031] The above disclosure is only one or more preferred embodiments of the present application, and cannot limit the scope of the rights of the present application. Those skilled in the art can understand that the implementation of all or part of the above embodiments, and the equivalent changes made according to the claims of the present application, still belong to the scope covered by the present application.

Claims

1. A car seat with multi-level adjustable backrest, comprising a seat body, wherein a backrest body is rotatably mounted on the rear side of the seat body via a fixed mounting seat, characterized in that: It also includes adjustment mechanisms; The adjustment mechanism includes a motor mount, a drive motor, a bearing mount, a screw, a moving block, a connecting rod, a guide device, and a detection device. The motor mount is fixed to the bottom of the seat body. The drive motor is electrically connected to the vehicle's electronic control system and fixed to the motor mount, and has a brake mechanism. The bearing mount is fixedly connected to the seat body and located on the side of the seat body near the motor mount, with two bearing mounts spaced apart. The screw is rotatably connected to the bearing mount and connected to the output shaft of the drive motor via a coupling. The moving block is threadedly connected to the screw and slidably engaged with the guide device, and is located between the bearing mounts. The connecting rod is rotatably connected to the moving block and the backrest body respectively via mounting pins. The guide device is located between the bearing mounts. The detection device is located on the side of the seat body near the moving block.

2. The car seat with multi-level adjustable backrest as described in claim 1, characterized in that: The side of the seat body is provided with a control button group for adjusting the backrest body, and the control button group is electrically connected to the vehicle's electronic control system.

3. The car seat with multi-level adjustable backrest as described in claim 1, characterized in that: The guiding device includes a guide rod and a fixed plate. The guide rod is slidably connected to the bearing seat and the moving block, respectively. The fixed plate is integrally formed with the guide rod and is fixedly connected to the bearing seat on the rear side.

4. The car seat with multi-level adjustable backrest as described in claim 1, characterized in that: The detection device includes a first switch frame and a second switch frame. The first switch frame is electrically connected to the vehicle's electronic control system and is disposed on the side of the seat body near the moving block. The second switch frame is electrically connected to the vehicle's electronic control system and is disposed on the side of the seat body away from the first switch frame.

5. The car seat with multi-level adjustable backrest as described in claim 1, characterized in that... : The backrest body is provided with hanging posts at the top, and the hanging posts are arranged symmetrically.

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