Shock absorber structure suitable for miniature electric vehicle

Abstract

The shock absorber structure suitable for the miniature electric vehicle comprises the shock absorber body and the spring tray unit arranged on the shock absorber body, the shock absorber spring can be conveniently assembled through the spring tray unit, the structure is simple, the assembly cost of the shock absorber spring is reduced, and meanwhile the shock absorber structure suitable for the miniature electric vehicle is convenient to use. According to the shock absorber structure suitable for the miniature electric vehicle, the requirement for the pre-tightening force when the shock absorption spring is assembled can be met, the reliability of the structure is improved, the requirement for the pre-tightening force when the shock absorption spring is assembled can be met, the assembly cost of the shock absorption spring can be reduced, and the reliability of the structure can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of automobile shock absorber, concretely, the utility model relates to a shock absorber structure suitable for micro electric vehicle. BACKGROUND

[0002] With the continuous development of the field of automobile, the helical spring in the shock absorber of micro electric vehicle meets the requirements of bearing and comfort in design, and also meets the installation pre-tightening force requirements of the helical spring, wherein the pre-tightening force of the helical spring during the assembly of the shock absorber meets the design requirement of being equal to or greater than 1200N, so as to avoid the problems of helical spring following rotation and abnormal sound during steering, the two ends of the helical spring are connected with upper and lower trays, and the pre-tightening force requirement cannot be met due to the limitation of space, vehicle load and stiffness.

[0003] In order to solve the above problems, the patent document 204372020U discloses a suspension spring shock absorber, which comprises a cylinder, a suspension spring and a piston rod, the lower part of the cylinder is provided with a mounting seat, the piston rod is upwardly movable and passes through the upper end of the cylinder, the suspension spring is arranged on the upper part of the cylinder, characterized in that: the part of the cylinder connected with the mounting seat is provided with at least three stamping protrusions for the pressure connection and fixation of the mounting seat, the stamping protrusions are arranged along the circumference of the outer wall of the cylinder, the upper and lower end faces of the suspension spring are supported by upper and lower supports, the upper support is fixedly connected with the top end of the piston rod, the lower support is screwed on the outer threaded sleeve, and the outer threaded sleeve is point-welded and fixed after being sleeved on the outer circle of the upper part of the cylinder, but the above problems cannot be solved. SUMMARY

[0004] The utility model is to solve the above problems, the purpose is to provide a kind of shock absorber structure suitable for micro electric vehicle, which can meet the pre-tightening force requirement of shock absorbing spring assembly, can be beneficial to reduce shock absorbing spring assembly cost, can improve structural reliability, to achieve the above purpose, the technical scheme that the utility model adopts is as follows:

[0005] The utility model provides a kind of shock absorber structure suitable for micro electric vehicle, with such characteristics, including shock absorber body and spring tray unit being set on shock absorber body.

[0006] In the shock absorber structure suitable for micro electric vehicle provided by the utility model, the spring tray unit can also have the following characteristics: the spring tray unit includes spring lower tray and spring upper tray, the spring lower tray and the spring upper tray are arranged on the shock absorber body, and the spring upper tray is located above the spring lower tray.

[0007] In the shock absorber structure suitable for the micro electric vehicle provided by the utility model, the spring lower tray comprises a tray body, a limiting sleeve and a supporting flange, the limiting sleeve is arranged at the bottom of the tray body, and the supporting flange is arranged at the bottom of the limiting sleeve.

[0008] In the shock absorber structure suitable for the micro electric vehicle provided by the utility model, the spring lower tray comprises a tray body, a limiting sleeve and a supporting flange, the limiting sleeve is arranged at the bottom of the tray body, and the supporting flange is arranged at the bottom of the limiting sleeve.

[0009] In the shock absorber structure suitable for the micro electric vehicle provided by the utility model, the spring lower tray comprises a tray body, a limiting sleeve and a supporting flange, the limiting sleeve is arranged at the bottom of the tray body, and the supporting flange is arranged at the bottom of the limiting sleeve.

[0010] In the shock absorber structure suitable for the micro electric vehicle provided by the utility model, the spring lower tray comprises a tray body, a limiting sleeve and a supporting flange, the limiting sleeve is arranged at the bottom of the tray body, and the supporting flange is arranged at the bottom of the limiting sleeve.

[0011] In the shock absorber structure suitable for the micro electric vehicle provided by the utility model, the spring lower tray comprises a tray body, a limiting sleeve and a supporting flange, the limiting sleeve is arranged at the bottom of the tray body, and the supporting flange is arranged at the bottom of the limiting sleeve.

[0012] In the shock absorber structure suitable for the micro electric vehicle provided by the utility model, the spring lower tray comprises a tray body, a limiting sleeve and a supporting flange, the limiting sleeve is arranged at the bottom of the tray body, and the supporting flange is arranged at the bottom of the limiting sleeve.

[0013] The shock absorber structure suitable for the micro electric vehicle provided by the utility model has the following technical effects: the shock absorber structure suitable for the micro electric vehicle comprises a shock absorber body and a spring tray unit arranged on the shock absorber body, the spring disc is designed as a structure without lift, that is, a flat structure is formed at the spring contact part, so that the spring is matched and contacted, the contact circle number is greater than or equal to 3 / 4, the pre-tightening force requirement of the spring can be met under a lower pre-pressure, the stepped structure of the spring disc plays a limiting role on the inner diameter of the coil spring and prevents the spring from moving, and three holes are punched on the spring disc to play the role of exhaust noise reduction.

[0014] Therefore, the shock absorber structure suitable for the micro electric vehicle provided by the utility model can meet the pre-tightening force requirement during the assembly of the damping spring, can be beneficial to reducing the assembly cost of the damping spring and can be beneficial to improving the structural reliability. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present specification includes the following drawings, and the shown contents are as follows:

[0016] Figure 1 is a structural schematic view of the shock absorber structure suitable for the micro electric vehicle in the embodiment of the utility model.

[0017] Figure 2 is a structure schematic view of the shock absorber body in the embodiment of the utility model;

[0018] Figure 3 is a structure schematic view of the spring lower tray in the embodiment of the utility model.

[0019] Marked in the figure: shock absorber body-10, spring tray unit-20, spring lower tray-21, tray body-211, limit sleeve-212, support flange-213, exhaust noise reduction hole-214, spring upper tray-22, damping spring-30, dustproof buffer cover-40, vibration isolation block assembly-50, shock absorber connecting unit-60, shock absorber connecting plate-61, connecting nut-62. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application are further described in detail below with reference to the drawings, and the purpose is to help the skilled in the art to have more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present application, and to help its implementation.

[0021] Figure 1 is a structure schematic view of the shock absorber structure suitable for the micro electric vehicle in the embodiment of the utility model; Figure 2 is a structure schematic view of the shock absorber body in the embodiment of the utility model.

[0022] As Figure 1 and Figure 2 shown, the shock absorber structure suitable for the micro electric vehicle provided by the utility model comprises a shock absorber body 10 and a spring tray unit 20 arranged on the shock absorber body 10, and the spring tray unit 20 can facilitate the assembly of the damping spring 30, the structure is simple, the assembly cost of the damping spring 30 is reduced, at the same time, the requirement of pre-tightening force during the assembly of the damping spring 30 can be met, the reliability of the structure is improved, so that the shock absorber structure suitable for the micro electric vehicle provided by the utility model can meet the requirement of pre-tightening force during the assembly of the damping spring 30, can be beneficial to reduce the assembly cost of the damping spring 30, and be beneficial to improve the structural reliability.

[0023] The spring tray unit 20 comprises a spring lower tray 21 and a spring upper tray 22, the spring lower tray 21 and the spring upper tray 22 are arranged on the shock absorber body 10, the spring upper tray 21 is located above the spring lower tray 22, and the damping spring 30 is arranged between the spring lower tray 21 and the spring upper tray 22.

[0024] Figure 3 is a structure schematic view of the spring lower tray in the embodiment of the utility model.

[0025] AsFigure 3 As shown, the spring lower tray 21 comprises a tray body 211, a limiting sleeve 212 and a support flange 213, the tray body 211 is connected with the shock absorber body 10 by welding, the structural strength between the tray body 211 and the shock absorber body 10 is enhanced, the limiting sleeve 212 is in a cylindrical shape, is arranged at the bottom of the tray body 211, can ensure that the damping spring 30 is sleeved on the limiting sleeve 212, and is favorable for limiting the damping spring 30; the support flange 213 is arranged at the bottom of the limiting sleeve 212, the support flange 213 is in an annular shape, the support flange 213 can increase the contact area between the damping spring 30 and the spring lower tray 21, ensure that the contact area between the damping spring 30 and the spring lower tray 21 is greater than or equal to 3 / 4 of a circle of the damping spring 30, and the pre-tightening force requirement of the damping spring 30 can be met under lower pre-pressure.

[0026] The tray body 211 is provided with exhaust noise reduction holes 214, three exhaust noise reduction holes 214 are uniformly arranged on the tray body 211, the exhaust noise reduction holes 214 can exhaust the gas generated by the dustproof buffer cover 40 through the exhaust noise reduction holes 214 when the damping spring 30 is in an upper limit state, and play a role in exhaust noise reduction.

[0027] The shock absorber structure suitable for the micro electric vehicle provided by the utility model still comprises a dustproof buffer cover 40, the dustproof buffer cover 40 is sleeved on the shock absorber body 10, the dustproof buffer cover 40 is located in the damping spring 30, the dustproof buffer cover 40 can isolate dust and other impurities, prevents dust and other impurities from entering the shock absorber body 10, and improves the service life of the shock absorber body 10.

[0028] The shock absorber structure suitable for the micro electric vehicle provided by the utility model still comprises a dustproof buffer cover 40, the dustproof buffer cover 40 is sleeved on the shock absorber body 10, the dustproof buffer cover 40 is located in the damping spring 30, the dustproof buffer cover 40 can isolate dust and other impurities, prevents dust and other impurities from entering the shock absorber body 10, and improves the service life of the shock absorber body 10.

[0029] Effects of the embodiment

[0030] The shock absorber structure suitable for the miniature electric vehicle provided by the utility model comprises a shock absorber body 10 and a spring tray unit 20 arranged on the shock absorber body 10, the spring tray unit 20 can conveniently assemble the damping spring 30, the structure is simple, the assembly cost of the damping spring 30 is reduced, meanwhile, the requirement of pre-tightening force during the assembly of the damping spring 30 can be met, the reliability of the structure is improved, so that the shock absorber structure suitable for the miniature electric vehicle provided by the utility model can meet the requirement of pre-tightening force during the assembly of the damping spring 30, can be beneficial to reducing the assembly cost of the damping spring 30 and be beneficial to improving the reliability of the structure.

[0031] The tray body 211 is connected with the shock absorber body 10 in a welding mode, the structural strength between the tray body 211 and the shock absorber body 10 is enhanced, the limiting sleeve 212 is in a cylindrical shape and is arranged at the bottom of the tray body 211, the damping spring 30 can be sleeved on the limiting sleeve 212, and the damping spring 30 is limited; the supporting flange 213 is arranged at the bottom of the limiting sleeve 212, the supporting flange 213 is in an annular shape, the supporting flange 213 can increase the contact area between the damping spring 30 and the spring lower tray 21, the contact area between the damping spring 30 and the spring lower tray 21 is ensured to be greater than or equal to 3 / 4 of the circle of the damping spring 30, and the requirement of pre-tightening force of the damping spring 30 can be met under a lower pre-pressure.

[0032] The utility model has been described above in connection with the drawings. Obviously, the specific implementation of the utility model is not limited by the above mode. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, or the above-mentioned concept and technical scheme of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A shock absorber structure suitable for micro electric vehicles, characterized in that, It includes a damper body (10) and a spring tray unit (20) disposed on the damper body (10).

2. The shock absorber structure for micro electric vehicles according to claim 1, characterized in that, The spring tray unit (20) includes a lower spring tray (21) and an upper spring tray (22), which are disposed on the damper body (10), with the upper spring tray (22) located above the lower spring tray (21).

3. The shock absorber structure for micro electric vehicles according to claim 2, characterized in that, The spring-loaded lower tray (21) includes a tray body (211), a limiting sleeve (212), and a supporting flange (213). The limiting sleeve (212) is located at the bottom of the tray body (211), and the supporting flange (213) is located at the bottom of the limiting sleeve (212).

4. The shock absorber structure for micro electric vehicles according to claim 3, characterized in that, The tray body (211) is provided with exhaust noise reduction holes (214), which are evenly arranged on the tray body (211).

5. The shock absorber structure for micro electric vehicles according to claim 2, characterized in that, A damping spring (30) is provided between the upper spring tray (22) and the lower spring tray (21).

6. The shock absorber structure for micro electric vehicles according to claim 4, characterized in that, It also includes a dustproof buffer cover (40), which is fitted onto the shock absorber body (10).

7. The shock absorber structure for micro electric vehicles according to claim 6, characterized in that, It also includes a vibration damping block assembly (50), which is disposed on the upper tray (22) of the spring.

8. The shock absorber structure for micro electric vehicles according to claim 7, characterized in that, It also includes a damper connection unit (60), which includes a damper connection plate (61) and a connection nut (62) connected to the damper connection plate (61). The damper connection plate (61) is disposed on the vibration isolation block assembly (50).

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