Automobile seat backrest framework

Abstract

The utility model discloses an automobile seat backrest framework and relates to the technical field of backrest frameworks. The automobile seat backrest framework comprises two sets of main framework rods, a supporting back plate and fixing blocks, and connecting supports are fixedly installed on the adjacent side walls of the two sets of main framework rods. According to the automobile seat backrest framework, through the arrangement of the fixed blocks and the movable framework rods, when one set of fixed blocks or movable framework rods are damaged, the damaged fixed blocks or movable framework rods can be rapidly replaced, the maintenance time of workers can be shortened, and meanwhile the maintenance cost of the framework can be reduced; the supporting effect of the framework can be improved, the front sides of the supporting back plates are arranged in an arc shape, the supporting back plates can support the back of a user and improve the comfort degree during supporting, the supporting back plates can be tightly attached to the back of the user according to different users due to the arrangement of the multiple sets of supporting back plates, and the practicability of the device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of backrest skeletons, and particularly relates to an automobile seat backrest skeleton. Background Art

[0002] For an automobile seat backrest skeleton in Chinese Patent Document CN221585220U, a U-shaped rod, a honeycomb panel, etc. are arranged in an arc shape, so that the backrest skeleton has a certain radian. Compared with the existing flat-shaped backrest skeleton, the utility model can better fit the back of an occupant, provide a supporting force for the back of the occupant, conform to ergonomics, and effectively improve the riding comfort; moreover, by arranging a first support wire and a second support wire in a grid support structure, the backrest skeleton has better support for the back of the occupant, further improving the riding comfort. The structure is simple. The metal honeycomb panel of the existing backrest skeleton is replaced with a honeycomb panel made of PP material, which can effectively reduce the weight of the automobile seat while ensuring the overall strength of the seat backrest skeleton, and also reduce the manufacturing cost. By arranging a noise reduction plate between the honeycomb panel and the wire assembly, the noise generated by the wire assembly hitting and rubbing against the honeycomb panel during riding can be reduced, improving the riding comfort.

[0003] For the above-mentioned automobile seat backrest skeleton, during installation, an integrated design is adopted. In this way, when a certain part of the backrest skeleton is damaged, it is difficult to replace it, which is not only inconvenient for workers to repair, but also increases the repair cost of the skeleton. Content of the Utility Model

[0004] The purpose of the utility model is to provide an automobile seat backrest skeleton, which can solve the problems that when a certain part of the backrest skeleton is damaged, it is difficult to replace it, which is not only inconvenient for workers to repair, but also increases the repair cost of the skeleton.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an automobile seat backrest skeleton, including main skeleton rods, a support backboard and fixing blocks. The number of the main skeleton rods is two groups, and connecting brackets are fixedly installed on the adjacent side walls of the two groups of main skeleton rods;

[0006] The front side of the support backboard is arranged in an arc shape;

[0007] Two groups of movable skeleton rods are arranged on the fixing blocks.

[0008] Preferably, threaded holes are formed in the main skeleton rods. Installation support rods are arranged on the adjacent side walls of the two groups of main skeleton rods. Threaded holes are formed inside the installation support rods. Connecting bolts are arranged on the main skeleton rods. The connecting bolts are threadedly installed in the threaded holes on the main skeleton rods and the installation support rods. The main skeleton rods and the installation support rods are connected by the connecting bolts.

[0009] Preferably, openings are formed on both sides of the fixed block. A limiting spring is fixedly installed on one inner wall of the opening. A sliding square block is fixedly installed on one side of the limiting spring. An active skeleton rod is fixedly installed on one side of the sliding square block. A groove for the active skeleton rod to move is formed on one side of the main skeleton rod. One end of the active skeleton rod extends into the groove on the main skeleton rod.

[0010] Preferably, a buffer spring and a telescopic rod are fixedly installed on the front side of the fixed block. The telescopic rod is located inside the buffer spring. A support back plate is fixedly installed on the front side of the buffer spring. The rear side of the support back plate is fixedly installed with the free end of the telescopic rod.

[0011] Preferably, a square opening is formed inside the fixed block. A reinforcing main rod is slidably installed on the inner wall of the square opening. A stabilizing opening is formed inside the active skeleton rod. A reinforcing sub-rod is slidably installed on the inner wall of the stabilizing opening.

[0012] Preferably, the bottoms and tops of the reinforcing main rod and the reinforcing sub-rod are respectively in contact with the top of the connecting bracket and the bottom of the mounting support rod without being fixed.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: For the backbone of the car seat backrest, through the arrangement of the fixed block and the active skeleton rod, the backbone can be disassembled. In this way, when one set of the fixed block or the active skeleton rod is damaged, it can be quickly replaced, which can not only reduce the maintenance time of workers, but also reduce the maintenance cost of the backbone. Furthermore, through the arrangement of the support back plate, the support effect of the backbone can be increased. The front side of the support back plate is arc-shaped, which can support the user's back and increase the comfort during support. The arrangement of multiple support back plates can make the support back plate fit closely to the user's back according to different users, further increasing the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0015] Figure 1 is a three-dimensional view of the present utility model;

[0016] Figure 2 is a rear view of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the fixed block of the present utility model.

[0018] Reference numerals: 1, main skeleton rod; 2, connecting bracket; 3, mounting support rod; 4, connecting bolt; 5, fixed block; 6, limiting spring; 7, sliding square block; 8, active skeleton rod; 9, buffer spring; 10, telescopic rod; 11, support back plate; 12, reinforcing main rod; 13, reinforcing sub-rod. Detailed implementation manners

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0020] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: an automobile seat backrest skeleton, including a main skeleton rod 1, a support backboard 11 and a fixing block 5. The number of the main skeleton rods 1 is two groups. Connecting brackets 2 are fixedly installed on the adjacent side walls of the two groups of main skeleton rods 1. The front side of the support backboard 11 is arc-shaped; two groups of movable skeleton rods 8 are provided on the fixing block

[0021] Further, threaded holes are formed in the main skeleton rod 1. Mounting support rods 3 are provided on the adjacent side walls of the two groups of main skeleton rods 1. Threaded holes are formed inside the mounting support rods 3. Connecting bolts 4 are provided on the main skeleton rod 1. The connecting bolts 4 are threadedly installed in the threaded holes on the main skeleton rod 1 and the mounting support rods 3. The main skeleton rod 1 and the mounting support rods 3 are connected by the connecting bolts 4.

[0022] Furthermore, openings are formed on both sides of the fixing block 5. A limiting spring 6 is fixedly installed on one inner wall of the opening. A sliding square block 7 is fixedly installed on one side of the limiting spring 6. A movable skeleton rod 8 is fixedly installed on one side of the sliding square block 7. A groove for the movable skeleton rod 8 to move is formed on one side of the main skeleton rod 1. One end of the movable skeleton rod 8 extends into the groove on the main skeleton rod 1. Such a setting can disassemble the skeleton. In this way, when one of the fixing blocks 5 or the movable skeleton rods 8 is damaged, it can be quickly replaced, which can not only reduce the maintenance time of workers, but also reduce the maintenance cost of the skeleton.

[0023] Furthermore, a buffer spring 9 and a telescopic rod 10 are fixedly installed on the front side of the fixed block 5. The telescopic rod 10 is located inside the buffer spring 9. A support backplate 11 is fixedly installed on the front side of the buffer spring 9. The rear side of the support backplate 11 is fixedly installed with the free end of the telescopic rod 10. A square opening is formed inside the fixed block 5. A reinforcing main rod 12 is slidably installed on the inner wall of the square opening. A stable opening is formed inside the movable skeleton rod 8. A reinforcing sub-rod 13 is slidably installed on the inner wall of the stable opening. The bottom and top of the reinforcing main rod 12 and the reinforcing sub-rod 13 are respectively in contact with the top of the connecting bracket 2 and the bottom of the mounting support rod 3 without being fixed. Such a setting can increase the support effect of the skeleton. The front side of the support backplate 11 is arc-shaped, which can support the user's back and increase the comfort during support. The setting of multiple groups of support backplates 11 can make the support backplate 11 closely adhere to the user's back according to different users, further increasing the practicality of the device.

[0024] Working principle: During installation, first move the movable skeleton rod 8, then align the movable skeleton rod 8 with the groove on the main skeleton rod 1, and release the movable skeleton rod 8. It can rebound through the limit spring 6 to insert the movable skeleton rod 8 into the groove on the main skeleton rod 1. Then insert the reinforcing main rod 12 into the square opening on the fixed block 5. After inserting the reinforcing sub-rod 13 into the stable opening on the movable skeleton rod 8, connect the main skeleton rod 1 and the mounting support rod 3 through the connecting bolt 4 to complete the installation.

[0025] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the knowledge scope of those of ordinary skill in the art in the technical field, various changes can be made without departing from the purpose of the present invention.

Claims

1. An automobile seat backrest skeleton, characterized in that, Comprising: Main framework rods (1), the number of the main framework rods (1) is two groups, and connecting brackets (2) are fixedly installed on the adjacent side walls of the two groups of main framework rods (1); Support backboard (11), the front side of the support backboard (11) is arc-shaped; Fixed block (5), and two groups of movable framework rods (8) are arranged on the fixed block (5).

2. The automotive seat backrest frame according to claim 1, wherein: Threaded holes are formed in the main framework rods (1), mounting support rods (3) are arranged on the adjacent side walls of the two groups of main framework rods (1), threaded holes are formed in the interiors of the mounting support rods (3), connecting bolts (4) are arranged on the main framework rods (1), and the connecting bolts (4) are threadedly installed in the threaded holes in the main framework rods (1) and the mounting support rods (3), and the main framework rods (1) and the mounting support rods (3) are connected by the connecting bolts (4).

3. The automotive seat backrest frame according to claim 2, characterized in that: Openings are formed on both sides of the fixed block (5), a limiting spring (6) is fixedly installed on one inner wall of the opening, a sliding square block (7) is fixedly installed on one side of the limiting spring (6), a movable framework rod (8) is fixedly installed on one side of the sliding square block (7), a groove for the movable framework rod (8) to move is formed on one side of the main framework rod (1), and one end of the movable framework rod (8) extends into the groove on the main framework rod (1).

4. The automotive seat backrest frame according to claim 3, characterized in that: A buffer spring (9) and a telescopic rod (10) are fixedly installed on the front side of the fixed block (5), the telescopic rod (10) is located inside the buffer spring (9), a support backboard (11) is fixedly installed on the front side of the buffer spring (9), and the rear side of the support backboard (11) is fixedly installed with the free end of the telescopic rod (10).

5. The automotive seat backrest frame according to claim 4, characterized in that: A square opening is formed in the fixed block (5), a reinforcing main rod (12) is slidably installed on the inner wall of the square opening, a stabilizing opening is formed in the movable framework rod (8), and a reinforcing auxiliary rod (13) is slidably installed on the inner wall of the stabilizing opening.

6. The automotive seat backrest frame according to claim 5, wherein: The bottoms and tops of the reinforcing main rod (12) and the reinforcing auxiliary rod (13) are respectively in contact with the top of the connecting bracket (2) and the bottom of the mounting support rod (3) and are not fixed.

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