Automobile seat cushion spring

Abstract

The utility model discloses a kind of automobile seat seat spring, including cushion support framework and connecting frame, the front end surface of cushion support framework equidistantly installed with fixed seat, and the fixed rod outer wall connected with extension spring is arranged in the inboard of fixed seat, the other end of extension spring is connected with cross bar, the outer wall equidistantly installed with spring wire of cross bar, the other end of spring wire is fixedly connected with the connecting frame.The support system of multiple-point uniform stress of the utility model makes pressure transmission more balanced, the elastic recovery of spring wire and the buffer effect of polyurethane protective layer are matched, shock-absorbing effect is greatly enhanced, and ride experience is improved;Meanwhile, the adjustment allowance design of waist type mounting hole improves the assembly compatibility with different vehicle models seats, and anti-skid thread avoids the loosening of bolt caused by vehicle driving vibration, both reduces the possibility of abnormal sound generation, and simplifies installation process, and both practicality and convenience are taken into account.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat components technology, specifically an automotive seat spring. Background Technology

[0002] Car seat springs are the core load-bearing components of car seats, and their performance directly affects the comfort and lifespan of the seat. In existing technology, car seat springs typically use steel wire as a skeleton, and a plastic sleeve is wrapped around the steel wire through an integral injection molding process to achieve the purposes of cushioning, noise reduction, and protection of the steel wire.

[0003] However, the existing seat spring structure has obvious defects in actual use. When the seat spring is stressed and sinks, the steel wire and the plastic sleeve will rotate relative to each other. This relative movement causes friction noise at the joint, which seriously affects the quietness of the car interior and the user's riding experience.

[0004] Therefore, it is necessary to provide a car seat spring to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automotive seat spring to solve the problems existing in the background technology. The technical solution of this utility model addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car seat spring, comprising a seat cushion support frame and a connecting frame, wherein a fixed seat is equidistantly installed on the front end face of the seat cushion support frame, and a tension spring is connected to the outer wall of a fixed rod provided on the inner side of the fixed seat; the other end of the tension spring is connected to a crossbar; spring steel wires are equidistantly installed on the outer wall of the crossbar; and the other end of the spring steel wires is fixedly connected to the connecting frame.

[0007] Preferably, the spring steel wire is made of SUS304 steel wire.

[0008] Preferably, the fixing seat and the seat support frame are integrally injection molded structures, and the inner wall of the fixing seat is provided with a groove that matches the fixing rod.

[0009] Preferably, the outer wall of the spring steel wire is wrapped with an elastic polyurethane protective layer, and the thickness of the protective layer is 0.3mm-0.5mm.

[0010] Preferably, the outer wall of the connecting frame is provided with a waist-shaped mounting hole, and the inner wall of the mounting hole is provided with anti-slip threads.

[0011] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The fixed base and seat support frame of this utility model are firmly connected by an integral injection molding, and the matching design of the fixed rod and the groove effectively eliminates the risk of the fixed base loosening and falling off; the corrosion resistance and high mechanical strength of SUS304 steel wire, combined with the wear-resistant and rust-proof function of the elastic polyurethane protective layer, not only extends the service life of the spring steel wire, but also avoids structural failure caused by component wear during long-term use, ensuring that the seat spring maintains stable support performance for a long time; 2. The multi-point uniform force support system of this utility model makes the pressure transmission more balanced. Combined with the elastic recovery of the spring steel wire and the buffering effect of the polyurethane protective layer, it greatly enhances the shock absorption effect and improves the riding experience. At the same time, the adjustment margin design of the waist-shaped mounting hole improves the assembly compatibility with seats of different models, and the anti-slip thread avoids the loosening of bolts caused by vehicle vibration. This reduces the possibility of abnormal noise and simplifies the installation process, taking into account both practicality and convenience. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Seat cushion support frame; 2. Connecting frame; 3. Fixing base; 4. Tension spring; 5. Crossbar; 6. Spring steel wire; 7. Groove; 8. Mounting hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0017] Please see Figure 1-3 A car seat spring includes a seat cushion support frame 1 and a connecting frame 2. Fixed seats 3 are equidistantly mounted on the front end face of the seat cushion support frame 1. A tension spring 4 is connected to the outer wall of a fixed rod disposed inside the fixed seat 3. A crossbar 5 is connected to the other end of the tension spring 4. Spring steel wires 6 are equidistantly mounted on the outer wall of the crossbar 5. The other end of the spring steel wires 6 is fixedly connected to the connecting frame 2. Through the coordinated connection structure of the seat cushion support frame, connecting frame, fixed seats, tension springs, crossbars, and spring steel wires, a multi-point uniform force-bearing support system is formed. This allows for more balanced force transmission of the seat spring, avoids localized stress concentration, and improves the overall load-bearing stability and cushioning effect of the seat spring. Furthermore, this assembly structure is simple, facilitating production, assembly, and subsequent maintenance and component replacement.

[0018] like Figure 1-3 As shown, the spring steel wire 6 is made of SUS304 steel wire. SUS304 steel wire has excellent corrosion resistance and oxidation resistance, which can effectively resist the influence of the humid environment or slightly corrosive substances inside the car seat and extend the service life of the spring steel wire. At the same time, it has high mechanical strength and good elastic recovery, which can ensure that the seat spring can maintain good elastic performance after long-term use and is not prone to permanent deformation, thus ensuring the comfortable support effect of the seat.

[0019] like Figure 1-3As shown, the fixing seat 3 and the seat support frame 1 are integrally injection molded structures, and the inner wall of the fixing seat 3 is provided with a groove 7 that matches the fixing rod. The integral injection molding structure makes the connection between the fixing seat and the seat support frame more secure, the overall structure stronger, and can prevent the fixing seat from loosening or falling off during use, thereby improving the stability of the seat spring structure.

[0020] like Figure 1-3 As shown, the outer wall of the spring steel wire 6 is wrapped with an elastic polyurethane protective layer, and the thickness of the protective layer is 0.3mm-0.5mm. The elastic polyurethane protective layer has good elasticity and cushioning performance, which can further enhance the shock absorption effect of the seat spring and improve riding comfort; at the same time, it can effectively isolate the spring steel wire from direct friction with the outside world, avoid wear and rust on the steel wire, and extend its service life.

[0021] like Figure 1-3 As shown, the outer wall of the connecting frame 2 is provided with a waist-shaped mounting hole 8, and the inner wall of the mounting hole 8 is provided with anti-slip threads. The mounting hole 8 is designed to provide a certain adjustment margin for the assembly of the seat spring and the car seat, which is convenient for fine-tuning the position according to actual installation needs and improving the assembly adaptability. The anti-slip threads on the inner wall of the mounting hole can increase the friction with the mounting bolt, effectively preventing the bolt from loosening due to vibration during vehicle operation, ensuring the connection stability between the seat spring and the seat, and avoiding abnormal noise or structural failure caused by loose connection.

[0022] Working Principle: During operation, the basic installation support system is constructed through the seat cushion support frame 1 and the connecting frame 2. After the fixed seat 3 is integrally formed with the seat cushion support frame 1, the fixed rod is precisely positioned by the groove 7 on its inner wall. One end of the tension spring 4 is connected to the fixed rod, and the other end is connected to the crossbar 5. Together with the spring steel wires 6 evenly distributed between the crossbar 5 and the connecting frame 2, a multi-point synergistic force-bearing elastic support structure is formed. When the seat is subjected to pressure, the spring steel wires 6 deform based on the excellent elastic recovery of SUS304 steel wire. At the same time, the tension springs 4 expand and contract synchronously to buffer the pressure. The two work together to disperse the pressure and avoid local stress concentration. The elastic polyurethane protective layer on the outer wall of the spring steel wires 6 can absorb the frictional impact force during the deformation process, reducing the direct friction between the steel wires and between the steel wires and other components. The waist-shaped mounting hole 8 of the connecting frame 2 is stably connected to the seat through anti-slip threads, ensuring that the entire seat spring structure remains firmly connected under stress deformation, vehicle driving vibration and other conditions, achieving a synergistic effect of balanced load bearing and smooth buffering.

[0023] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A car seat spring, comprising a seat cushion support frame (1) and a connecting frame (2), characterized in that: The front end face of the seat support frame (1) is equidistantly equipped with a fixed seat (3), and the outer wall of the fixed rod provided on the inner side of the fixed seat (3) is connected with a tension spring (4). The other end of the tension spring (4) is connected with a crossbar (5). The outer wall of the crossbar (5) is equidistantly equipped with spring steel wires (6), and the other end of the spring steel wires (6) is fixedly connected to the connecting frame (2).

2. The car seat spring according to claim 1, characterized in that: The spring steel wire (6) is made of SUS304 steel wire.

3. The car seat spring according to claim 1, characterized in that: The fixing seat (3) and the seat support frame (1) are integrally injection molded structures, and the inner wall of the fixing seat (3) is provided with a groove (7) that is compatible with the fixing rod.

4. A car seat spring according to claim 1, characterized in that: The outer wall of the spring steel wire (6) is wrapped with an elastic polyurethane protective layer, and the thickness of the protective layer is 0.3mm-0.5mm.

5. A car seat spring according to claim 1, characterized in that: The outer wall of the connecting frame (2) is provided with a waist-shaped mounting hole (8), and the inner wall of the mounting hole (8) is provided with anti-slip threads.

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