Special-shaped spring

Abstract

The utility model belongs to the technical field of special-shaped springs, and particularly relates to a special-shaped spring which comprises a spring body which is composed of three sections including a uniform straight spiral section, a circular spiral enlarging section fixedly connected with the upper end of the uniform straight spiral section and a square spiral enlarging section fixedly connected with the lower end of the uniform straight spiral section. And one end of the circular spiral enlarging section and one end of the square spiral enlarging section are fixedly connected with a connecting rod which is close to the center. According to the utility model, a three-section structure is adopted, and the uniform straight spiral section provides basic support to prevent the seat from excessively sinking; the circular spiral enlarged section is attached to a hip curve to disperse pressure; the square spiral enlarged section provides precise support for the waist, maintains the natural curve of the spine and relieves waist fatigue, meanwhile, the tie bar spring and the main spring work cooperatively, when a vehicle vibrates during driving, vibration energy can be rapidly absorbed, the quiet and comfortable feeling of riding is improved, and the strict requirements of modern automobile seats for comfort and ergonomics are met in an all-round mode.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of special-shaped springs, in particular to a special-shaped spring. BACKGROUND

[0002] In the field of automotive interiors, the comfort of the seat plays a crucial role in the driving experience, and the spring is one of the key components that determines the comfort of the seat.

[0003] Early car seats mostly use ordinary straight cylinder springs. At that time, the function of the car was focused on basic travel needs, and people had relatively low requirements for comfort. However, with the improvement of living standards, consumers have higher expectations for the comfort of car seats.

[0004] On the one hand, when the human body sits, the pressure distribution is not uniform, and the pressure distribution of different parts such as the hips, waist, and legs is different. Traditional standard springs are difficult to adjust the spring force flexibly according to the complex pressure curve of the human body, and long-term sitting can easily lead to local fatigue. And special-shaped springs, such as springs with a unique three-section structure (uniform spiral section, circular spiral increasing section, and square spiral increasing section), can better adapt to the pressure distribution of the human body. The uniform spiral section can provide basic support to ensure that the seat does not sink too much; the circular spiral increasing section gradually increases in diameter from bottom to top, corresponding to the key pressure-bearing areas such as the ischial tuberosities of the hips, and can gradually buffer the spring force when under pressure, conforming to the human body curve and dispersing the pressure; the square spiral increasing section increases in diameter from top to bottom, which is aimed at the support needs of the waist, and provides just the right amount of spring force when the human body leans back, maintaining the natural curve of the spine and reducing the burden on the waist.

[0005] On the other hand, it is inevitable that vibrations will occur during driving, especially when the road conditions are poor. Conventional springs have limited filtering effect on vibrations, and vibrations can easily be transmitted directly to the human body, affecting the comfort of the ride. The new type of car seat special-shaped spring, with the ingenious design of connecting the link to the hook and ring connecting the spring, quickly responds to the spring when encountering slight vibrations, and cooperates with the main spring to further absorb the vibration energy, keeping the seat stable at all times and greatly improving the sense of quietness and comfort of the ride, fully meeting the stringent requirements of modern car seats for comfort and ergonomics. SUMMARY

[0006] (I) Technical problems solved

[0007] In view of the deficiencies of the prior art, the utility model provides a special-shaped spring, which solves the problems raised in the above background.

[0008] (II) Technical solutions

[0009] The utility model discloses in order to realize above-mentioned purpose specifically adopts following technical scheme:

[0010] The special-shaped spring comprises a spring body, which is composed of three sections, including a straight spiral section, a circular spiral increasing section fixedly connected with the upper end of the straight spiral section, and a square spiral increasing section fixedly connected with the lower end of the straight spiral section, one end head of the circular spiral increasing section and the square spiral increasing section is fixedly connected with a connecting rod which is close to the center, one end of the connecting rod is fixedly connected with a hook ring, and a tensile spring is hung between the two hook rings.

[0011] Further, the spiral diameter of the circular spiral increasing section increases from bottom to top.

[0012] Further, the spiral diameter of the square spiral increasing section increases from top to bottom.

[0013] Further, the diameter of the tensile spring is smaller than the diameter of the straight spiral section.

[0014] Further, the diameter of the tensile spring is the same.

[0015] Further, the connecting rods are in the same plane.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the special-shaped spring has the following beneficial effects:

[0018] The special-shaped spring has the following beneficial effects: the three-section structure is adopted, the straight spiral section provides basic support to prevent the seat from sinking excessively, the circular spiral increasing section is attached to the hip curve to disperse pressure, the square spiral increasing section provides precise support for the waist to maintain the natural curve of the spine and reduce waist fatigue, the tensile spring and the main spring work cooperatively to quickly absorb vibration energy when the vehicle is running, and the quietness and comfort of riding are improved, and the strict requirements of modern automobile seats on comfort and ergonomics are met in all directions. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is a side view structure schematic diagram of the utility model.

[0021] In the drawing: 1, straight spiral section; 2, circular spiral increasing section; 3, square spiral increasing section; 4, connecting rod; 5, hook ring; 6, tensile spring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Embodiment

[0024] As Figures 1-2 shown, one embodiment of the utility model provides a special-shaped spring, including spring main part, the spring main part is by three segments constitutes, including uniform helical segment 1, with uniform helical segment 1 upper end fixed connection's circular helical increase segment 2, with uniform helical segment 1 lower end fixed connection's square helical increase segment 3;

[0025] Spring main part is by uniform helical segment 1, circular helical increase segment 2 and square helical increase segment 3 constitute.Uniform helical segment 1 provides basic support force, guarantees that seat will not excessively sink, maintains the basic shape and support strength of seat.Circular helical increase segment 2 from below to above helical diameter increases in turn, fits the key pressure-bearing area such as ischial tuberosity of human body, can gradually change elastic buffering when being pressed, effectively disperses hip pressure, improves the comfort of hip.Square helical increase segment 3 increases in diameter from top to bottom, when human body leans back, can provide just right springback force for waist, maintains the natural curvature of spine, reduces the burden of waist, plays a good supporting role to waist;

[0026] One end of the circular helical increase segment 2 and the square helical increase segment 3 is fixedly connected with a connecting rod 4 that approaches the center, one end of the connecting rod 4 is fixedly connected with a hook ring 5;

[0027] The connecting rod 4 plays a connecting and force transmitting role, connects the circular helical increase segment 2 and the square helical increase segment 3, so that the whole spring structure becomes a stable whole, and can transmit and disperse force between different parts when stressed. The hook ring 5 is used for hanging a tension spring 6, providing a connecting point for the tension spring 6, ensuring that the tension spring 6 can work cooperatively with the main spring;

[0028] The two hook rings 5 are hung with the tension spring 6, which can pinch and fix the hook rings 5 after being hung;

[0029] When vibration occurs during driving, the tension spring 6 responds quickly and cooperates with the main spring to further absorb vibration energy. When encountering slight vibration, the tension spring 6 deforms elastically to buffer and filter the vibration, reducing the transmission of vibration to the human body, keeping the seat stable at all times, and greatly improving the quietness and comfort of riding;

[0030] The working principle of the special-shaped spring is as follows: when the special-shaped spring is installed on a car seat, the uniform spiral segment 1 first provides a basic supporting force to prevent the seat from sinking excessively. The circular spiral increasing segment 2 has a gradually increasing spiral diameter from bottom to top, and the gradually changing structure thereof makes the elastic force gradually change when the circular spiral increasing segment 2 is pressed. The square spiral increasing segment 3 has a gradually increasing diameter from top to bottom, and provides a suitable elastic force. When the car is running and vibration occurs, the pull spring 6 plays a role. The pull spring 6 is connected with the main spring through the connecting rod 4 and the hook ring 5. When slight vibration occurs, the pull spring 6 quickly responds, cooperates with the uniform spiral segment 1, the circular spiral increasing segment 2 and the square spiral increasing segment 3 to further absorb vibration energy, keeps the car seat stable, and improves the quietness and comfort of the car seat.

[0031] As shown in Figure 2 some embodiments, the circular spiral increasing segment 2 has a gradually increasing spiral diameter from bottom to top. When the circular spiral increasing segment 2 is pressed, the lower part with a smaller diameter is first subjected to a smaller pressure, and as the pressure increases, the upper part with a larger diameter gradually participates in bearing. This special structure enables the bottom part with a smaller diameter to provide a certain buffer when the circular spiral increasing segment 2 is subjected to vibration impact, and then as the impact energy is transmitted, the part with a gradually increasing diameter can gradually increase the buffer intensity, thereby more effectively absorbing and dispersing vibration energy.

[0032] As shown in Figure 2 some embodiments, the square spiral increasing segment 3 has a gradually increasing spiral diameter from top to bottom. When the square spiral increasing segment 3 is subjected to external force, the lower part with a larger supporting area and stronger elastic force can better resist shaking and displacement.

[0033] As shown in Figure 2 some embodiments, the diameter of the pull spring 6 is smaller than the diameter of the uniform spiral segment 1, and the pull spring 6 does not affect installation and use.

[0034] As shown in Figure 2 some embodiments, the diameter of the pull spring 6 is the same, and the uniformity of the elastic force can be directly ensured.

[0035] As shown in Figure 1 some embodiments, the connecting rod 4 is in the same plane, which facilitates positioning, installation and design.

[0036] Finally, it should be noted that the above description is only preferred embodiments of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A non-standard spring, comprising a spring body, characterized in that: The spring body consists of three sections, including a uniform straight spiral section (1), a circular spiral enlargement section (2) fixedly connected to the upper end of the uniform straight spiral section (1), and a square spiral enlargement section (3) fixedly connected to the lower end of the uniform straight spiral section (1). A connecting rod (4) is fixedly connected to one end of the circular spiral enlargement section (2) and the square spiral enlargement section (3) and moves towards the center. A hook (5) is fixedly connected to one end of the connecting rod (4), and a tension spring (6) is hung between the two hooks (5).

2. The irregularly shaped spring according to claim 1, characterized in that: The diameter of the circular spiral increasing section (2) increases sequentially from bottom to top.

3. The irregularly shaped spring according to claim 1, characterized in that: The diameter of the square spiral increasing section (3) increases sequentially from top to bottom.

4. The irregularly shaped spring according to claim 1, characterized in that: The diameter of the tension spring (6) is smaller than the diameter of the uniform straight helical segment (1).

5. A non-circular spring according to claim 4, characterized in that: The tension springs (6) have the same diameter.

6. A non-circular spring according to claim 1, characterized in that: The connecting rod (4) is on the same plane.

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