Rear backrest framework welding assembly

Abstract

The utility model provides a rear backrest framework welding assembly, which relates to the technical field of rear backrest frameworks and comprises a base framework component, two fixing blocks are fixedly mounted on one side of the outer wall of the base framework component, limiting holes are formed in one sides of the outer walls of the two fixing blocks, and one side of the outer wall of the base framework component is in contact with a connecting plate. According to the rear backrest framework assembly, when the rear backrest framework needs to be installed in a seat after being welded, the connecting plate is arranged on the two fixing blocks in a sleeved mode through the two inserting holes, the connecting plate is made to abut against the base framework assembly, then the limiting strip penetrates through the limiting holes in the two fixing blocks, and after the limiting strip penetrates through the limiting holes for a proper distance, the connecting plate is fixed. The two fixing pieces penetrate through the limiting strips and are in threaded connection with the interiors of the two fixing holes, and then the connecting plate is limited to one side of the base framework assembly, so that a positioning effect is achieved when the rear backrest framework is installed, workers do not need to spend time in positioning and installation, and the efficiency of installing the rear backrest framework in a seat after welding is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a rear backrest frame, in particular to a rear backrest frame welding assembly. Background Art

[0002] The backrest frame refers to the rear support structure of a chair or seat. It is usually made of metal or plastic material, has a frame shape, and is connected to the seat part of the chair. The backrest frame plays a key supporting and stabilizing role in the chair or seat, and has an important impact on the user's comfort and posture. Through reasonable design and manufacturing, the backrest frame can provide good back support, improve sitting posture, increase stability, and bring a comfortable and safe use experience to users.

[0003] In the prior art, the rear back frame is usually directly installed inside the rear back when manufacturing the chair or seat after being welded, but it cannot be accurately positioned before installation, so it cannot be installed in the correct position, which reduces the efficiency of the installation of the rear back frame after welding. Utility Model Content

[0004] The utility model aims to solve the problem that the existing equipment cannot be accurately positioned before installation and thus cannot be installed at an accurate position when in use, and proposes a rear backrest frame welding assembly.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rear backrest frame welding assembly, including a base frame component, two fixed blocks are fixedly installed on one side of the outer wall of the base frame component, and limiting holes are provided on one side of the outer wall of the two fixed blocks. One side of the outer wall of the base frame component contacts with a connecting plate, and one side of the outer wall of the connecting plate is provided with a rear backrest frame body, one side of the outer wall of the rear backrest frame body is provided with two insertion holes, and the outer walls of the two fixed blocks are movably inserted into the inside of the two insertion holes, and a limiting strip is movably inserted between the inner walls of the two limiting holes.

[0006] Preferably, fixing holes are formed on the tops of the two fixing blocks.

[0007] Preferably, the inner walls of the two fixing holes are both threadedly connected with fixing pieces, and the outer walls of the two fixing pieces are both movably inserted inside the limiting strip.

[0008] Preferably, a plurality of shock-absorbing springs are fixedly mounted on the other side of the outer wall of the connecting plate.

[0009] Preferably, a plurality of shock-absorbing dampers are fixedly mounted on the other side of the outer wall of the connecting plate, and the outer walls of the plurality of shock-absorbing dampers are all connected to the interior of the plurality of shock-absorbing springs.

[0010] Preferably, a backing plate is fixedly installed between one side of the outer walls of the plurality of shock absorbing springs, and one side of the outer wall of the backing plate is fixedly connected to one side of the outer walls of the plurality of shock absorbing dampers.

[0011] Preferably, a plurality of limit rods are fixedly mounted on one side of the outer wall of the back plate, a plurality of circular holes are opened on the other side of the outer wall of the connecting plate, and the outer walls of the plurality of limit rods are movably inserted into the plurality of circular holes.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] In the utility model, when the rear backrest frame needs to be installed in the seat after welding, the connecting plate is sleeved on the two fixing blocks through the two plug holes, and the connecting plate is placed close to the base frame assembly, and then the limiting strip is passed through the limiting holes on the two fixing blocks. After passing through a suitable distance, the two fixing parts are passed through the limiting strip and threadedly connected in the two fixing holes, and then the connecting plate is limited to one side of the base frame assembly, thereby achieving a positioning effect when installing the rear backrest frame, and the staff does not need to spend time on positioning and installation, thereby improving the efficiency of installing the rear backrest frame in the seat after welding.

[0014] In the utility model, through the effects of multiple shock-absorbing springs and multiple shock-absorbing dampers, and each shock-absorbing damper is respectively located inside each shock-absorbing spring, and then multiple fixing rods are movably inserted inside multiple circular holes, thereby playing a shock-absorbing and buffering role for people leaning on the backboard, improving comfort, thereby improving the effect of the rear backrest frame being installed in the seat after welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of a rear backrest frame welding assembly is proposed for the utility model;

[0016] Figure 2 A disassembled diagram of a rear backrest frame welding assembly is proposed for the utility model;

[0017] Figure 3 A partial disassembled diagram of a rear backrest frame welding assembly is proposed for the utility model;

[0018] Figure 4 The utility model provides a partial front view of a rear backrest frame welding assembly.

[0019] Legend:

[0020] 1. Base frame assembly; 2. Fixing block; 3. Limiting hole; 4. Connecting plate; 5. Rear backrest frame body; 6. Plug hole; 7. Limiting strip; 8. Fixing hole; 9. Fixing piece; 10. Shock-absorbing spring; 11. Shock-absorbing damping; 12. Back plate; 13. Limiting rod; 14. Round hole. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described below in conjunction with the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 4 As shown, the utility model provides a rear backrest frame welding assembly, including a base frame component 1, two fixing blocks 2 are fixedly installed on one side of the outer wall of the base frame component 1, and limiting holes 3 are provided on one side of the outer walls of the two fixing blocks 2. One side of the outer wall of the base frame component 1 contacts with a connecting plate 4, and a rear backrest frame body 5 is arranged on one side of the outer wall of the connecting plate 4. Two insertion holes 6 are provided on one side of the outer wall of the rear backrest frame body 5, and the outer walls of the two fixing blocks 2 are movably inserted into the inside of the two insertion holes 6, and a limiting strip 7 is movably inserted between the inner walls of the two limiting holes 3, and the tops of the two fixing blocks 2 are provided with fixing holes 8, the inner walls of the two fixing holes 8 are threadedly connected with fixing parts 9, and the outer walls of the two fixing parts 9 are movably inserted into the inside of the limiting strip 7.

[0024] The effect achieved by the entire embodiment 1 is that when the rear backrest frame body 5 is welded and needs to be installed inside the seat, it is first installed on the connecting plate 4. Since two insertion holes 6 are provided on the connecting plate 4, two fixing blocks 2 are installed on one side of the outer wall of the base frame assembly 1, and then the connecting plate 4 is sleeved on the two fixing blocks 2 through the two insertion holes 6 and is close to the base frame assembly 1. Since limiting holes 3 are provided on the two fixing blocks 2, and the limiting strip 7 is passed through the two limiting holes 3 to a suitable place, and at this time, one side of the outer wall of the limiting strip 7 contacts the opposite side of the outer wall of the connecting plate 4, and then since fixing holes 8 are provided on the tops of the two fixing blocks 2, and two fixing members 9 are simultaneously passed through the limiting strip 7 and then threadedly connected in the two fixing holes 8, and then the limiting strip 7 is fixed and limited in the two fixing blocks 2, thereby limiting the connecting plate 4 and the rear backrest frame body 5 in one place, achieving a positioning effect, and the installation process is simple and quick, and the staff does not need to spend more time on positioning and installation, thereby improving the efficiency of the rear backrest frame being installed in the seat after welding.

[0025] Embodiment 2, as Figure 2-Figure 4As shown, a plurality of shock-absorbing springs 10 are fixedly installed on the other side of the outer wall of the connecting plate 4, a plurality of shock-absorbing dampers 11 are fixedly installed on the other side of the outer wall of the connecting plate 4, and the outer walls of the plurality of shock-absorbing dampers 11 are all connected with the interior of the plurality of shock-absorbing springs 10, a backing plate 12 is fixedly installed between one side of the outer walls of the plurality of shock-absorbing springs 10, and one side of the outer wall of the backing plate 12 is fixedly connected with one side of the outer wall of the plurality of shock-absorbing dampers 11, a plurality of limiting rods 13 are fixedly installed on one side of the outer wall of the backing plate 12, a plurality of circular holes 14 are opened on the other side of the outer wall of the connecting plate 4, and the outer walls of the plurality of limiting rods 13 are all movably inserted into the interior of the plurality of circular holes 14.

[0026] The effect achieved by the entire embodiment 2 is that, since multiple shock-absorbing springs 10 and multiple shock-absorbing dampers 11 are installed on the other side of the outer wall of the connecting plate 4, and each shock-absorbing damper 11 is respectively located inside each shock-absorbing spring 10, and then a backing plate 12 is installed between one side of the outer wall of the multiple shock-absorbing springs 10, and then multiple limiting rods 13 are installed on one side of the outer wall of the backing plate 12, and multiple circular holes 14 are opened on the other side of the outer wall of the connecting plate 4, and the outer walls of the multiple limiting rods 13 are movably inserted into the multiple circular holes 14, thereby playing a shock-absorbing and buffering role for people leaning on the backing plate 12, improving the comfort, thereby improving the effect of the rear backrest frame being installed in the seat after welding.

[0027] Working principle: First, after the rear backrest frame body 5 is welded, it is then installed on the connecting plate 4. Since two fixing blocks 2 are installed on one side of the outer wall of the base frame assembly 1, two insertion holes 6 are opened on one side of the outer wall of the connecting plate 4, and the connecting plate 4 is sleeved on the two fixing blocks 2 through the two insertion holes 6 and is close to the base frame assembly 1. Since limiting holes 3 are opened on one side of the outer wall of the two fixing blocks 2, the limiting strips 7 are passed through the two limiting holes 3 to the appropriate place, and the two fixing parts 9 are passed through the limiting strips 7, and then threadedly connected to the fixing holes 8 opened on the top of the two fixing blocks 2. Since the limiting strips 7 are inserted into the two limiting holes 3, they are also close to the connecting plate 4, thereby connecting the connecting plate 4 and the rear backrest. The backrest frame body 5 is limited in one place, which plays a positioning effect, and the installation process is simple and quick, and the staff does not need to spend more time on positioning and installation. Secondly, multiple shock-absorbing springs 10 and shock-absorbing dampers 11 are installed between the connecting plate 4 and the back plate 12, and multiple limiting rods 13 installed on one side of the outer wall of the back plate 12 are movably inserted in multiple circular holes 14 opened on the other side of the outer wall of the back plate 12, thereby playing a shock-absorbing and buffering role for people leaning on the back plate 12, thereby improving comfort. In general, after the rear backrest frame is welded, it is limited in a specific position, which has a positioning effect, and then it can be installed in an accurate position, thereby improving the efficiency of the installation of the rear backrest frame after welding.

[0028] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A rear backrest frame welding assembly, comprising a base frame assembly (1), characterized in that: Two fixing blocks (2) are fixedly mounted on one side of the outer wall of the base frame assembly (1), and a limiting hole (3) is provided on one side of the outer wall of the two fixing blocks (2). One side of the outer wall of the base frame assembly (1) contacts a connecting plate (4), and a rear backrest frame body (5) is provided on one side of the outer wall of the connecting plate (4). Two insertion holes (6) are provided on one side of the outer wall of the rear backrest frame body (5), and the outer walls of the two fixing blocks (2) are movably inserted into the inside of the two insertion holes (6), and a limiting strip (7) is movably inserted between the inner walls of the two limiting holes (3).

2. A rear backrest frame welding assembly according to claim 1, characterized in that: The tops of the two fixing blocks (2) are each provided with a fixing hole (8).

3. A rear backrest frame welding assembly according to claim 2, characterized in that: The inner walls of the two fixing holes (8) are both threadedly connected with fixing pieces (9), and the outer walls of the two fixing pieces (9) are both movably inserted into the interior of the limiting strip (7).

4. A rear backrest frame welding assembly according to claim 3, characterized in that: A plurality of shock-absorbing springs (10) are fixedly mounted on the other side of the outer wall of the connecting plate (4).

5. The rear backrest frame welding assembly according to claim 4, characterized in that: A plurality of shock absorbing dampers (11) are fixedly mounted on the other side of the outer wall of the connecting plate (4), and the outer walls of the plurality of shock absorbing dampers (11) are all in communication with the interior of the plurality of shock absorbing springs (10).

6. The rear backrest frame welding assembly according to claim 5, characterized in that: A backing plate (12) is fixedly mounted between one side of the outer walls of the plurality of shock absorbing springs (10), and one side of the outer wall of the backing plate (12) is fixedly connected to one side of the outer walls of the plurality of shock absorbing dampers (11).

7. The rear backrest frame welding assembly according to claim 6, characterized in that: A plurality of limiting rods (13) are fixedly mounted on one side of the outer wall of the backing plate (12), a plurality of circular holes (14) are opened on the other side of the outer wall of the connecting plate (4), and the outer walls of the plurality of limiting rods (13) are movably inserted into the plurality of circular holes (14).

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