Locking device for mounting automobile seat

By designing a locking device for car seat installation, and utilizing structures such as locking blocks, rotating plates, and ropes to enhance the stability of the seat, the problem of the seat loosening or flipping during a collision or sudden braking is solved, thereby improving the stability and comfort of the seat.

CN223982437UActive Publication Date: 2026-03-10XIANGYANG HENGJI MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing car seats may loosen or flip during a vehicle collision or sudden braking, causing passengers to lose support, increasing the risk of injury, and potentially affecting the normal functioning of airbags and seat belts.

Method used

A locking device for installing a car seat is designed. Through the combination structure of locking blocks, rotating plates, ropes and fixing brackets for the backrest and seat, the friction is increased to ensure a stable connection between the backrest and seat. The stability and comfort of the seat are improved through support components and adjustment components.

Benefits of technology

It effectively prevents the seat from sliding or flipping during a collision or sudden braking, ensuring passenger stability, improving seat safety and riding comfort, reducing vibration, and providing a stable riding platform.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a locking device for installation of an automobile seat, belongs to the technical field of automobile seats, and aims to solve the problems that when an existing automobile is collided or suddenly braked, a loose seat can slide or turn over, so that the body of a passenger loses support, and the injury risk is increased. The backrest serves as a back supporting part of the seat, the position of the seat plate is moved, so that the seat plate is oppositely inserted into the backrest, the rotating plate can freely rotate around the fixing shaft, the backrest and the seat plate are assembled, a clamping block on one side of the backrest is aligned with and clamped with a clamping groove in the rotating plate, and a rope in the fixing assembly is wound around the rotating plate; the fixing frame is fixed through the protrusions on the fixing frame, the friction force between the fixing frame and the rope can be increased through the protrusions, the locking stability is improved, it is ensured that the rotating plate is firmly fixed, then the backrest and the seat plate are stably connected, the multiple sets of supporting assemblies act jointly, the weight of the seat plate and the weight of a passenger are borne, and the stability of the seat is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile seat, especially to a locking device for automobile seat installation. BACKGROUND

[0002] A locking device for automobile seat installation refers to a mechanical device specially designed to firmly fix the automobile seat on the vehicle chassis or body structure. Its main function is to ensure that the automobile seat remains in the predetermined position during vehicle driving, preventing the seat from shifting, shaking or loosening, and providing a stable seating platform for the driver and passengers. In emergency situations such as vehicle collision or sudden braking, the device can withstand and transmit various forces exerted on the seat, firmly securing the seat and ensuring that the driver and passengers remain in a safe position relative to the seat.

[0003] Chinese patent authorization announcement number CN214929150U discloses a locking structure for automobile seat. By moving the sliding plate forward and backward along the sliding groove, the front and rear positions of the cushion are adjusted. When the sliding plate moves forward and backward, the connecting rod and the fixed block move forward and backward along the sliding port. Then the fixed block inserts the insertion rod into the corresponding clamping hole, thereby locking the front and rear positions of the cushion. When the angle of the back cushion needs to be adjusted, the hand wheel is rotated to drive the driving gear. Since the driving gear is engaged with the driven gear, the driving gear rotates to drive the driven gear, the rotating rod and the back cushion, thereby adjusting the angle of the back cushion.

[0004] The above-mentioned prior art solution has the following disadvantages: when the vehicle collides or brakes suddenly, the loose seat may slide or overturn, causing the passenger's body to lose support and increasing the risk of injury such as lumbar injury and head impact. The seat displacement may hinder the normal deployment of the airbag or affect the restraint effect of the safety belt. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of overcoming the defect that the loose seat may slide or overturn when the vehicle collides or brakes suddenly, causing the passenger's body to lose support and increasing the risk of injury. The utility model provides a locking device for automobile seat installation.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of a locking device for automobile seat installation, which includes a backrest, a seat plate connected to one side of the backrest, a support assembly at the lower end of the seat plate for supporting the seat plate, and multiple support assemblies.

[0007] A locking block is provided on one side of the backrest, and multiple sets of locking blocks are provided. A fixed shaft is provided on one side of the seat, and a rotating plate is rotatably connected to the outer surface of the fixed shaft. A locking groove is provided on one side of the rotating plate. A fixing component for fixing the rotating plate is provided on one side of the backrest. The fixing component includes a rope provided on one side of the backrest, a fixing frame provided on one side of the backrest, and a protrusion provided on one side of the fixing frame.

[0008] Preferably, the support assembly includes a hook disposed on one side of the seat, a spring A engaged with one side of the hook, and a telescopic rod sleeved inside the spring A.

[0009] Preferably, a protective ring is fitted on the outer surface of the telescopic rod. The protective ring is a component made of polycarbonate material. A limit ring is provided at the lower end of the protective ring, and a shock-absorbing damping device is provided at the lower end of the telescopic rod.

[0010] Preferably, the outer surface of the seat has ventilation holes, and the upper part of the seat has a cushion made of memory foam.

[0011] Preferably, the lower end of the backrest is provided with an adjustment component for adjusting the support area. The adjustment component includes a slide rail provided at the lower end of the backrest, a guide block provided inside the slide rail, a slider slidably connected to the upper end of the guide block, and the slider being fixedly connected to the seat plate.

[0012] Preferably, a spring B is provided at the upper end of the seat plate, and two sets of springs B are provided. A cushioning pad is provided at the upper end of the two sets of springs B. The cushioning pad is a component made of polystyrene foam material.

[0013] Compared with the prior art, the beneficial effects of this utility model include: through the arrangement of the backrest, rotating plate, rope, protrusion, and seat, the backrest serves as the back support of the seat. By moving the position of the seat, the seat is inserted into the backrest, allowing the rotating plate to rotate freely around a fixed axis. The backrest and seat are assembled, aligning and engaging the locking block on one side of the backrest with the locking groove on the rotating plate. The rope in the fixing assembly is looped around the rotating plate and fixed by the protrusion on the fixing frame. The protrusion increases the friction between the fixing frame and the rope, improving the locking stability and ensuring that the rotating plate is firmly fixed. This, in turn, makes the connection between the backrest and the seat stable. Multiple sets of support components work together to bear the weight of the seat and the passenger, ensuring the stability of the seat. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 The schematic diagram illustrates the overall structure of a locking device for mounting a car seat according to one embodiment of the present invention. Figure 1 ;

[0016] Figure 2 The schematic diagram illustrates the overall structure of a locking device for mounting a car seat according to one embodiment of the present invention. Figure 2 ;

[0017] Figure 3 The schematic diagram shows a structural schematic of an adjusting assembly for a locking device for mounting a car seat according to one embodiment of the present invention;

[0018] Figure 4 The diagram illustrates the structure of a fixing assembly for mounting a car seat according to one embodiment of the present invention.

[0019] The following components are labeled in the diagram: 1. Backrest; 11. Engaging block; 2. Rotating plate; 21. Engaging groove; 3. Fixing component; 31. Rope; 32. Fixing frame; 33. Protrusion; 4. Support component; 41. Hook; 42. Spring A; 43. Protective ring; 44. Telescopic rod; 45. Limiting ring; 46. Shock absorption damping; 5. Adjustment component; 51. Slide rail; 52. Guide block; 53. Slider; 6. Seat plate; 61. Fixed shaft; 62. Vent hole; 7. Spring B; 71. Cushion pad; 8. Seat cushion. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods without changing the essential spirit of this utility model. Therefore, the following specific embodiments and accompanying drawings are merely exemplary descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction on the technical solution of this utility model.

[0021] According to one embodiment of the present invention, in conjunction with Figure 1 As shown. A locking device for installing a car seat includes: a backrest 1, a seat plate 6 that is engaged with one side of the backrest 1, and a support assembly 4 for supporting the seat plate 6 at the lower end of the seat plate 6, wherein multiple sets of support assemblies 4 are provided.

[0022] Example 1:

[0023] In this embodiment, please refer to Figure 1 and Figure 4 A locking block 11 is provided on one side of the backrest 1, and multiple sets of locking blocks 11 are provided. A fixing shaft 61 is provided on one side of the seat plate 6. A rotating plate 2 is rotatably connected to the outer surface of the fixing shaft 61. A locking groove 21 is provided on one side of the rotating plate 2. A fixing component 3 for fixing the rotating plate 2 is provided on one side of the backrest 1. The fixing component 3 includes a rope 31 provided on one side of the backrest 1. A fixing frame 32 is provided on one side of the backrest 1. A protrusion 33 is provided on one side of the fixing frame 32.

[0024] Specifically, the backrest 1 serves as the back support of the seat. The position of the seat 6 is moved so that the seat 6 is inserted into the backrest 1, allowing the rotating plate 2 to rotate freely around the fixed axis 61. The backrest 1 and the seat 6 are assembled, and the locking block 11 on one side of the backrest 1 is aligned and locked with the locking groove 21 on the rotating plate 2. The rope 31 in the fixing component 3 is passed around the rotating plate 2 and fixed by the protrusion 33 on the fixing frame 32. The protrusion 33 can increase the friction between the fixing frame 32 and the rope 31, improve the locking stability, and ensure that the rotating plate 2 is firmly fixed, thereby making the connection between the backrest 1 and the seat 6 stable. Multiple sets of support components 4 work together to bear the weight of the seat and the passenger, ensuring the stability of the seat.

[0025] Example 2:

[0026] In this embodiment, please refer to Figures 1-3 The support component 4 includes a hook 41 on one side of the seat plate 6, a spring A42 engaged on one side of the hook 41, a telescopic rod 44 inside the spring A42, a protective ring 43 on the outer surface of the telescopic rod 44, the protective ring 43 being a component made of polycarbonate material, a limit ring 45 at the lower end of the protective ring 43, a shock-absorbing damping 46 at the lower end of the telescopic rod 44, a ventilation hole 62 on the outer surface of the seat plate 6, a seat cushion 8 at the upper end of the seat plate 6, the seat cushion 8 being a component made of memory foam, an adjustment component 5 for adjusting the support area at the lower end of the backrest 1, the adjustment component 5 including a slide rail 51 at the lower end of the backrest 1, a guide block 52 inside the slide rail 51, a slider 53 slidably connected to the upper end of the guide block 52, the slider 53 being fixedly connected to the seat plate 6, a spring B7 at the upper end of the seat plate 6, two sets of springs B7, a buffer pad 71 at the upper end of the two sets of springs B7, the buffer pad 71 being a component made of polystyrene foam material.

[0027] Specifically, when riding, the memory foam seat cushion 8 conforms to the body, providing a comfortable feel. The cushioning pad 71 further cushions body pressure under the action of spring B7. To adjust the support area between the backrest 1 and the seat 6, the backrest 1 can be pushed to make the slider 53 slide along the slide rail 51 on the guide block 52 until it is adjusted to the appropriate position. During vehicle operation, the spring A42, telescopic rod 44, and shock-absorbing damper 46 of the support assembly 4 work together to absorb vibrations. The protective ring 43 protects the telescopic rod 44 and reduces the impact of the spring A42's extension on the telescopic rod. The friction damage caused by 44 limits the spring A42. The seat cushion 8 is made of memory foam and is located at the top of the seat plate 6, providing a comfortable riding experience. The seat cushion 8 can be pulled out in hot weather. The ventilation hole 62 helps air circulation and improves riding comfort. The backrest 1 provides support for the back. The cushion 71 made of polystyrene foam is lightweight, has good heat insulation, and has a certain cushioning capacity, which can reduce the overall weight of the seat and provide a certain cushioning protection for passengers. The elasticity of the spring B7 can provide support and absorb vibration to reduce the feeling of vibration.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A locking device for installing a car seat, characterized in that, Include: The backrest is clamped and connected on one side of the seat plate, and the lower end of the seat plate is provided with a support assembly for supporting the seat plate, and the support assembly is provided with multiple groups; The backrest is provided with a clamping block on one side, the clamping block is provided with multiple groups, the seat plate is provided with a fixed shaft on one side, the outer surface of the fixed shaft is rotatably connected with a rotating plate, the rotating plate is provided with a clamping groove on one side, the backrest is provided with a fixing assembly for fixing the rotating plate, the fixing assembly includes a rope provided on one side of the backrest, and the backrest is provided with a fixing frame on one side, and the fixing frame is provided with a protrusion on one side.

2. The locking device for mounting a seat of an automobile according to claim 1, wherein The support assembly includes a hook provided on one side of the seat plate, the hook is clamped and connected with a spring A on one side, and the spring A is sleeved with a telescopic rod inside.

3. The locking device for mounting a seat of an automobile according to claim 2, wherein The outer surface of the telescopic rod is sleeved with a protective ring, the protective ring is a member made of polycarbonate material, the lower end of the protective ring is provided with a limiting ring, and the lower end of the telescopic rod is provided with a shock absorbing damping.

4. The locking device for mounting a seat of an automobile according to claim 1, wherein The outer surface of the seat plate is provided with a ventilation hole, and the upper end of the seat plate is provided with a seat cushion, which is a member made of memory foam.

5. The locking device for mounting a seat of an automobile according to claim 1, wherein The lower end of the backrest is provided with an adjusting assembly for adjusting the support area, the adjusting assembly includes a sliding rail provided on the lower end of the backrest, the sliding rail is provided with a guide block inside, the guide block is slidably connected with a sliding block on the upper end, and the sliding block is fixedly connected with the seat plate.

6. The locking device for mounting a seat of an automobile according to claim 1, wherein The upper end of the seat plate is provided with a spring B, the spring B is provided with two groups, and the upper end of the two groups of spring B is provided with a buffer pad, which is a member made of polystyrene foam material.