Automobile seat backrest adjusting and putting-down structure

Abstract

The utility model relates to the technical field of automobile seat backrests, in particular to an automobile seat backrest adjusting and putting-down structure which comprises a seat framework, a backrest framework, a first rotating shaft and an adjusting assembly, the adjusting assembly comprises a handle rod, a linkage piece, a pull wire and an unlocking component, the linkage piece is rotationally connected with the first rotating shaft, and the handle rod is fixedly connected with the linkage piece. One end of the pull wire is connected with the linkage piece, the other end of the pull wire is connected with the unlocking component, and the unlocking component is located on the side, away from the first rotating shaft, of the backrest framework. When a person sits on the seat, the angle between the backrest and the seat is adjusted through the weight of the body of the person, so that the person can sit on the seat more comfortably, the structure is simple, the operation is convenient, and the practicability is high. And the cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat backrests, in particular to an automobile seat backrest adjustment and reclining structure. Background Art

[0002] Unlocking and folding the backrest frame in the trunk position is one of the new functions of the rear seat of the car, and its folding action is mainly realized by the unlocking mechanism in the trunk position. The unlocking mechanism of the backrest in the trunk position is related to the convenience and comfort of the owner's operation.

[0003] The existing announcement number CN215663065U discloses an automatic folding mechanism for a car backrest frame, including a backrest frame and an outer hinge bracket fixed to the vehicle body, an outer rotating shaft and an inner rotating shaft are respectively installed on both sides of the lower part of the backrest frame, the outer rotating shaft is rotatably connected to the outer hinge bracket and a coil spring is installed between the two, a backrest lock and a backrest lock buckle hand connected to the backrest lock are installed on one side of the upper part of the backrest frame, the backrest lock buckle hand is rotatably installed on the backrest frame, a reset torsion spring is arranged between the backrest lock buckle hand and the backrest frame, the backrest lock is switched on and off with the rotation of the backrest lock buckle hand, a zipper motor is installed on the backrest frame, and the zipper motor and the backrest lock buckle hand are connected by a cable. The zipper motor controls the rotation of the backrest lock buckle hand to complete the unlocking of the backrest lock, and the one-key folding function of the backrest frame is conveniently and quickly realized.

[0004] However, the automatic folding mechanism of the above-mentioned automobile backrest frame has a relatively complex structure, a large number of parts and components, and a high cost. Utility Model Content

[0005] The utility model aims to provide a car seat backrest adjustment and folding structure, which solves the problems of the existing car backrest frame automatic folding mechanism having a complex structure, a large number of parts and a high cost.

[0006] To achieve the above-mentioned purpose, the utility model provides a car seat backrest adjustment and reclining structure, comprising a seat frame, a backrest frame and a first rotating shaft, one end of the backrest frame is connected to the seat frame through the first rotating shaft, and also includes an adjustment component;

[0007] The adjustment assembly includes a handle rod, a linkage, a pull wire and an unlocking member. The linkage is rotatably connected to the first rotating shaft and is located on the outside of the seat frame. The handle rod is fixedly connected to the linkage and is located on a side of the linkage away from the first rotating shaft. One end of the pull wire is connected to the linkage, and the other end of the pull wire is connected to the unlocking member. The unlocking member is located on a side of the backrest frame away from the first rotating shaft.

[0008] Wherein, the unlocking component includes an adjuster, a connecting piece and a second rotating shaft, the adjuster is connected to the seat frame and is located on the side of the seat frame away from the first rotating shaft; the connecting piece is connected to the adjuster and connected to the pull wire; the second rotating shaft is connected to the adjuster and fixedly connected to the backrest frame.

[0009] Wherein, the adjustment component also includes a reset spring, one end of which is connected to the seat frame, and the other end of which is connected to the linkage member.

[0010] Wherein, the adjustment component further includes a reset leaf spring, one end of which is connected to the second rotating shaft; and the other end of which is in contact with the seat frame.

[0011] Among them, the automobile seat backrest adjustment and folding structure also includes a limit assembly, which includes a handle limit block and an adjustment limit block. The handle limit block is fixedly connected to the seat frame and is located on the side of the seat frame close to the linkage member; the number of the adjustment limit blocks is two, and the two adjustment limit blocks are respectively detachably connected to the backrest frame and are respectively located on both sides of the backrest frame.

[0012] The utility model provides a car seat back adjustment and folding structure. The handle rod is pulled to drive the linkage member to rotate, and the pull wire is pulled. The pull wire pulls the unlocking component to unlock the backrest frame. Then the backrest frame is rotated along the seat frame through the first rotating shaft to realize the backrest folding. When a person sits on the seat, the angle between the backrest and the seat is adjusted by the weight of the person's body, making the ride more comfortable. The utility model has a simple structure, is easy to operate, and is conducive to reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of the automobile seat backrest adjustment and folding structure.

[0015] Figure 2 It is a structural schematic diagram of the unlocking component of the utility model.

[0016] Figure 3 The utility model Figure 2 Enlarged view of point A.

[0017] Figure 4 It is a structural schematic diagram of the limit assembly of the utility model.

[0018] Figure 5 The utility model is a schematic diagram of the front use state of the folding backrest frame of the automobile seat backrest adjustment and folding structure.

[0019] Figure 6 The utility model is a schematic diagram of the folding backrest frame state of the automobile seat backrest adjustment and folding structure.

[0020] Figure 7 The utility model is a schematic diagram of the automobile seat backrest adjustment and folding structure after the backrest frame is folded and used.

[0021] In the figure: 101-seat frame, 102-backrest frame, 103-first rotating shaft, 104-handle rod, 105-linkage member, 106-pull wire, 107-adjuster, 108-connector, 109-second rotating shaft, 110-reset tension spring, 111-reset leaf spring, 201-handle limit block, 202-adjustment limit block. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0023] The first embodiment of the present application is:

[0024] See also Figures 1 to 7 ,in, Figure 1 The utility model is a schematic diagram of the overall structure of the automobile seat backrest adjustment and folding structure. Figure 2 It is a structural schematic diagram of the unlocking component of the utility model. Figure 3 The utility model Figure 2 Enlarged view of point A. Figure 4 It is a structural schematic diagram of the limit assembly of the utility model. Figure 5 The utility model is a schematic diagram of the front use state of the folding backrest frame of the automobile seat backrest adjustment and folding structure. Figure 6 The utility model is a schematic diagram of the folding backrest frame state of the automobile seat backrest adjustment and folding structure. Figure 7 The utility model provides a car seat back adjustment and folding structure: comprising a seat frame 101, a back frame 102 and a first rotating shaft 103, the adjustment assembly comprises a handle bar 104, a linkage 105, a pull line 106, an unlocking member, a reset tension spring 110 and a reset leaf spring 111, and the unlocking member comprises a regulator 107, a connecting member 108 and a second rotating shaft 109.

[0025] According to this specific embodiment, one end of the backrest frame 102 is connected to the seat frame 101 through the first rotating shaft 103, and the first rotating shaft 103 is fixed on one side of the seat frame 101. The backrest frame 102 can rotate on the seat frame 101 through the first rotating shaft 103, and the filling material is coated on the backrest frame 102 and the seat frame 101 to form an overall car seat backrest for use.

[0026] The linkage 105 is rotatably connected to the first rotating shaft 103 and is located outside the seat frame 101. The handle bar 104 is fixedly connected to the linkage 105 and is located on a side of the linkage 105 away from the first rotating shaft 103. One end of the pull wire 106 is connected to the linkage 105, and the other end of the pull wire 106 is connected to the unlocking member, and the unlocking member is located on a side of the backrest frame 102 away from the first rotating shaft 103. The linkage 105 rotates on the first rotating shaft 103, one end of which is connected to the handle bar 104, and the handle bar 104 is used for manual application, and the other end is connected to the pull wire 106, and the other end of the pull wire 106 is connected to the unlocking member.

[0027] Secondly, the adjuster 107 is connected to the seat frame 101 and is located at a side of the seat frame 101 away from the first rotating shaft 103; the connector 108 is connected to the adjuster 107 and is connected to the pull wire 106; the second rotating shaft 109 is connected to the adjuster 107 and is fixedly connected to the backrest frame 102. The adjuster 107 is installed at a side of the seat frame 101 away from the first rotating shaft 103 and is connected to the second rotating shaft 109. The adjuster 107 controls the rotation of the second rotating shaft 109. The connector 108 is connected to the adjuster 107 and is used to control the unlocking of the adjuster 107. The side of the backrest frame 102 away from the first rotating shaft 103 is fixedly connected to the second rotating shaft 109 and rotates on the seat frame 101 through the second rotating shaft 109.

[0028] At the same time, one end of the return spring 110 is connected to the seat frame 101, and the other end of the return spring 110 is connected to the linkage 105. The two ends of the return spring are respectively connected to the seat frame 101 and the linkage 105, and when the linkage 105 loses its tension, the elastic force of the return spring resets the linkage 105.

[0029] In addition, one end of the reset leaf spring 111 is connected to the second rotating shaft 109; the other end of the reset leaf spring 111 abuts against the seat frame 101. The two ends of the reset leaf spring 111 are respectively connected to the seat frame 101 and the second rotating shaft 109. After the adjuster 107 is unlocked and the backrest frame 102 is not exerting force, the elastic force of the reset leaf spring 111 causes the backrest frame 102 to tilt forward.

[0030] When the backrest angle of a car seat is adjusted and reclined using the present embodiment, the handle bar 104 is manually pulled to drive the linkage member 105 to rotate and pull the pull wire 106. The other end of the pull wire 106 works the connecting member 108 to cause the adjuster 107 to rotate and unlock. The second rotating shaft 109 is rotatable. At this time, force is applied to the backrest frame 102, and the backrest frame 102 rotates on the seat frame 101 through the first rotating shaft 103 and the second rotating shaft 109. When the backrest frame 102 is not applied with force, the elastic force of the reset leaf spring 111 causes the backrest frame 102 to tilt forward and fold directly on the seat frame 101. It is easy to use. After the adjustment is completed, the handle bar 104 is released. The elastic force of the reset tension spring 110 causes the linkage member 105 to reset, and then the adjuster 107 is reset. The backrest frame 102 is fixed. The structure is simple, easy to use, and conducive to reducing costs.

[0031] The second embodiment of the present application is:

[0032] Based on the first embodiment, please refer to Figure 4 ,in, Figure 4 The structure diagram of the limit assembly of the utility model is shown in FIG. 2. The car seat backrest adjustment and folding structure of the present embodiment further includes a limit assembly, and the limit assembly includes a handle limit block 201 and an adjustment limit block 202 .

[0033] According to this specific embodiment, the handle limit block 201 is fixedly connected to the seat frame 101 and is located on one side of the seat frame 101 close to the linkage member 105; there are two adjustment limit blocks 202, which are detachably connected to the backrest frame 102 and are located on both sides of the backrest frame 102. The handle limit block 201 is fixed to the seat frame 101 to limit the rotation of the limit member so that it can only rotate within a set range. The two adjustment limit blocks 202 are fixed to the backrest frame 102 by bolts. The seat frame 101 has a protrusion relative to the two adjustment limit blocks 202, so that the adjustment limit blocks 202 can only rotate the backrest frame 102 within a set range.

[0034] Using the automobile seat backrest adjustment and folding structure of this embodiment, the handle limit block 201 limits the rotation range of the linkage member 105, and the adjustment limit block 202 limits the rotation range of the backrest frame 102, so that it is suitable for use in the vehicle interior space.

[0035] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A car seat backrest adjustment and folding structure, comprising a seat frame, a backrest frame and a first rotating shaft, wherein one end of the backrest frame is connected to the seat frame through the first rotating shaft, characterized in that: Also included are adjustment components; The adjustment assembly includes a handle rod, a linkage, a pull wire and an unlocking member. The linkage is rotatably connected to the first rotating shaft and is located on the outside of the seat frame. The handle rod is fixedly connected to the linkage and is located on a side of the linkage away from the first rotating shaft. One end of the pull wire is connected to the linkage, and the other end of the pull wire is connected to the unlocking member. The unlocking member is located on a side of the backrest frame away from the first rotating shaft.

2. The vehicle seat backrest adjustment and folding structure according to claim 1, characterized in that: The unlocking component includes an adjuster, a connecting piece and a second rotating shaft. The adjuster is connected to the seat frame and is located on a side of the seat frame away from the first rotating shaft. The connecting piece is connected to the adjuster and is connected to the pull wire. The second rotating shaft is connected to the adjuster and is fixedly connected to the backrest frame.

3. The vehicle seat backrest adjustment and folding structure according to claim 1, characterized in that: The adjustment assembly also includes a reset spring, one end of which is connected to the seat frame, and the other end of which is connected to the linkage member.

4. The vehicle seat backrest adjustment and folding structure according to claim 2, characterized in that: The adjustment component also includes a reset leaf spring, one end of which is connected to the second rotating shaft; and the other end of which is in contact with the seat frame.

5. The vehicle seat backrest adjustment and folding structure according to claim 1, characterized in that: The automobile seat backrest adjustment and folding structure also includes a limit assembly, which includes a handle limit block and an adjustment limit block. The handle limit block is fixedly connected to the seat frame and is located on the side of the seat frame close to the linkage member; the number of the adjustment limit blocks is two, and the two adjustment limit blocks are respectively detachably connected to the backrest frame and are respectively located on both sides of the backrest frame.

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