Shock absorber lower spring cushion with lift structure

Abstract

The utility model relates to the technical field of automobile suspension systems, and discloses a shock absorber lower spring cushion with a lift structure, which comprises a suspension upper support, a bearing is rotatably connected to the bottom of the suspension upper support, a first spring cushion is sleeved at the top of the outer wall of the bearing, a buffer block is sleeved at the bottom of the outer wall of the bearing, and a second spring cushion is sleeved at the bottom of the outer wall of the buffer block. The buffer block is sleeved with a dustproof cover, the dustproof cover is sleeved with a spring, a second spring cushion is arranged at the bottom of the spring, a tray is arranged at the bottom of the second spring cushion, and a lift structure is arranged in the tray. The contact area between the second spring cushion and the lower end ring of the spring is increased through the protruding part and the groove part arranged in the lift structure, so that the connection stability between the second spring cushion and the lower end ring of the spring is improved, swing and deformation of the spring are reduced in the vehicle running process, the stability of a suspension system is improved, and the lift structure is simple in structure, low in manufacturing cost and suitable for popularization and application. And installation and maintenance are easy, and the practical value is high.

Description

Technical Field

[0001] This utility model relates to the field of automotive suspension system technology, and more specifically to a shock absorber lower spring pad with a lift structure. Background Technology

[0002] The MacPherson strut suspension is a common automotive suspension system that integrates a spring and a shock absorber to support the wheels and the vehicle body. When a MacPherson strut vehicle is in motion, the tire bounces up or down, generating an upward vertical force. Because the shock absorber is not installed vertically but at an angle to the vertical, a lateral force perpendicular to the shock absorber axis is generated. To improve vehicle stability and extend the lifespan of the shock absorber, the MacPherson strut spring needs to be eccentric, generating a lateral spring force to compensate for the lateral force generated by the tire.

[0003] The shortcomings of the existing technology: In the existing MacPherson suspension, the lower spring pad is in direct contact with the spring, and the contact structure between the lower spring pad and the lower end ring of the spring is a planar structure. When the spring moves up and down, it applies a lateral force to the lower spring pad. The lateral force on the lower spring pad is transmitted to the shock absorber tray, generating friction. When the lateral force generated by the spring is greater than the friction between the lower spring pad and the tray, the lower spring pad slips relative to the tray, eventually causing the lower spring pad to flip outward and fail, thus affecting the stability and handling performance of the vehicle. Therefore, it is necessary to design a shock absorber lower spring pad with a lift structure. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a lower spring pad of a shock absorber with a lift structure to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a shock absorber lower spring pad with a lift structure, including a suspension upper support, a bearing rotatably connected to the bottom of the suspension upper support, a first spring pad sleeved on the top of the outer wall of the bearing, a buffer block sleeved on the bottom of the outer wall of the bearing, a dust cover sleeved on the buffer block, a spring sleeved on the dust cover, a second spring pad disposed at the bottom of the spring, a tray disposed at the bottom of the second spring pad, and a lift structure disposed inside the tray.

[0006] Preferably, the first spring washer is adapted to the spring, and the first spring washer is in contact with the upper end coil surface of the spring.

[0007] Preferably, the buffer block is made of polyurethane, the dust cover is made of thermoplastic elastomer, and the cross-section of the dust cover has a wavy structure.

[0008] Preferably, the angle θ of the lifting structure is 45°-90°, the radius of the lifting structure is equal to the radius of the tray, and the height of the lifting structure is 4.5 mmMIN.

[0009] Preferably, the lifting structure has a protrusion and a groove, the outer ring of the protrusion has a groove, the protrusion and the groove are integrally formed, and a second spring pad is embedded in the groove.

[0010] Preferably, the lift structure is adapted to the spring, and the lift structure is in contact with the lower end face of the spring.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. This utility model, by providing a lift structure, utilizes the protrusions and grooves in the lift structure to increase the contact area between the second spring pad and the lower end ring of the spring, thereby improving the connection stability between them. This helps to reduce the swing and deformation of the spring during vehicle operation, improve the stability of the suspension system, help reduce friction and vibration between the spring and the lower end ring, thereby reducing the noise and vibration generated by the suspension system during operation, and can also reduce wear between the spring and the lower end ring, extend service life, and reduce wear and damage caused by friction.

[0013] 2. This utility model, by incorporating a first spring pad, can reduce and absorb vibrations and impacts caused by uneven road surfaces when the vehicle is in motion, thereby improving driving comfort and protecting the spring from external contamination and corrosion, thus extending the service life of the spring.

[0014] 3. This utility model incorporates a buffer block and a dust cover made of elastic rubber, which are flexible and wear-resistant, ensuring the normal operation of the internal components of the shock absorber and extending its service life. It can effectively prevent dust, water and other impurities from entering the shock absorber, while also maintaining the sealing performance of the shock absorber piston to ensure the normal operation of the shock absorber. At the same time, the wave-shaped dust cover has a certain degree of elasticity when subjected to external pressure or stretching. Attached Figure Description

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 This is a schematic diagram of the lift structure in this utility model.

[0017] Figure 3 This is a top view schematic diagram of the lift structure in this utility model.

[0018] The attached figures are labeled as follows: 1. Upper support of suspension; 2. Bearing; 3. First spring pad; 4. Buffer block; 5. Dust cover; 6. Spring; 7. Second spring pad; 8. Tray; 9. Lift structure; 901. Protrusion; 902. Groove. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The lower spring pad of the shock absorber with a lift structure involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] This utility model provides a lower spring pad for a shock absorber with a lift structure. Please refer to [link / reference]. Figure 1-3 As shown, the suspension includes an upper support 1, a bearing 2 rotatably connected to the bottom of the upper support 1, a first spring pad 3 fitted on the top of the outer wall of the bearing 2, a buffer block 4 fitted on the bottom of the outer wall of the bearing 2, a dust cover 5 fitted on the buffer block 4, a spring 6 fitted on the dust cover 5, a second spring pad 7 at the bottom of the spring 6, a tray 8 at the bottom of the second spring pad 7, and a lift structure 9 inside the tray 8.

[0021] Furthermore, the first spring pad 3 is adapted to the spring 6, and the first spring pad 3 contacts the upper end of the spring 6. By setting the first spring pad 3, vibrations and impacts caused by uneven road surfaces can be reduced and absorbed when the vehicle is in motion, thereby improving driving comfort.

[0022] Furthermore, the buffer block 4 is made of polyurethane, and the dust cover 5 is made of thermoplastic elastomer, which has flexibility and wear resistance to ensure the normal operation of the internal components of the shock absorber and extend the service life of the shock absorber. It can effectively prevent dust, water and other impurities from entering the shock absorber, while also maintaining the sealing performance of the shock absorber piston and ensuring the normal operation of the shock absorber. The cross-section of the dust cover 5 is a wavy structure, which allows the dust cover 5 to have a certain degree of extensibility when it encounters external compression or stretching, while maintaining its protective function for the shock absorber piston. This helps to maintain the flexibility of the dust cover 5 when the shock absorber is moving, so as to adapt to different driving conditions and road conditions.

[0023] Furthermore, the angle θ of the lifting structure 9 is 45°-90°, the radius of the lifting structure 9 is equal to the radius of the tray 8, and the height of the lifting structure 9 is 4.5mmMIN. This increases the contact angle between the lower end ring of the spring 6 and the second spring pad 7. That is, during the reciprocating motion of the spring 6, the force-bearing area of ​​the second spring pad 7 increases, and the force perpendicular to the tray 8 increases, thereby increasing the friction between the second spring pad 7 and the tray 8 and thus avoiding the failure of the second spring pad 7 to flip outward under the action of the lateral force of the spring 6.

[0024] Furthermore, the lift structure 9 is provided with a protrusion 901 and a groove 902. The outer ring of the protrusion 901 is provided with the groove 902. The protrusion 901 and the groove 902 are integrally formed. The groove 902 is embedded with a second spring pad 7. The lift structure 9 is added to the contact surface between the second spring pad 7 and the lower end ring of the spring 6, so that the contact angle between the lower end ring of the spring 6 and the second spring pad 7 is increased, that is, the pressure area of ​​the second spring pad 7 is increased, thereby increasing the friction between the second spring pad 7 and the tray 8, thereby avoiding the failure of the second spring pad 7 to flip outward.

[0025] Furthermore, the lift structure 9 is adapted to the spring 6, and the lift structure 9 contacts the lower end ring surface of the spring 6. The protrusions 901 provided in the lift structure 9 can increase the angle and pressure area of ​​the contact surface of the second spring pad 7. The addition of this structure can increase the contact angle between the lower end ring of the spring 6 and the second spring pad 7, thereby improving the friction and reducing the possibility of sliding and flipping.

[0026] The working principle of this utility model is as follows: During vehicle operation, the suspension system is subjected to various impacts and vibrations from the road surface. This utility model effectively improves the stability and driving comfort of the suspension system by setting a lift structure 9. When the vehicle is in motion, the buffer block 4 and dust cover 5 made of elastic rubber can effectively reduce and absorb vibrations and impacts caused by uneven road surfaces, prevent dust, water, and other impurities from entering the shock absorber, maintain the sealing performance of the shock absorber piston, ensure the normal operation of the shock absorber, and extend the service life of the shock absorber. A second spring pad 7 is set at the bottom of the spring 6, and the contact area between the lower end ring of the spring 6 and the second spring pad 7 is increased by the lift structure 9, improving the stability and driving comfort of the suspension system. The stable connection between them increases the force-bearing area of ​​the second spring pad 7 during the reciprocating motion of the spring 6, and increases the force perpendicular to the tray 8, thereby increasing the friction between the second spring pad 7 and the tray 8. This avoids the risk of the second spring pad 7 flipping outward and failing under the action of the lateral force of the spring 6. The protrusion 901 and groove 902 provided in the lift structure 9 optimize the performance of the second spring pad 7, improve the stability and driving comfort of the suspension system, reduce noise and vibration, extend the service life of components, and ensure the normal operation of the shock absorber. In addition, this utility model has a simple structure, low manufacturing cost, and is easy to install and maintain, and has high practical value.

[0027] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0028] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0029] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shock absorber lower spring pad with a lift structure, comprising a suspension upper support (1), characterized in that: The bottom of the suspension support (1) is rotatably connected to a bearing (2). A first spring pad (3) is fitted on the top of the outer wall of the bearing (2). A buffer block (4) is fitted on the bottom of the outer wall of the bearing (2). A dust cover (5) is fitted on the buffer block (4). A spring (6) is fitted on the dust cover (5). A second spring pad (7) is provided at the bottom of the spring (6). A tray (8) is provided at the bottom of the second spring pad (7). A lift structure (9) is provided inside the tray (8).

2. The lower spring pad of a shock absorber with a lift structure according to claim 1, characterized in that: The first spring pad (3) is adapted to the spring (6), and the first spring pad (3) is in contact with the upper end ring surface of the spring (6).

3. The lower spring pad of a vibration damper with a lift structure according to claim 1, characterized in that: The buffer block (4) is made of polyurethane, and the dust cover (5) is made of thermoplastic elastomer. The cross-section of the dust cover (5) is a wavy structure.

4. The lower spring pad of a shock absorber with a lift structure according to claim 1, characterized in that: The angle θ of the lifting structure (9) is 45°-90°, the radius of the lifting structure (9) is equal to the radius of the tray (8), and the height of the lifting structure (9) is 4.5 mmMIN.

5. The lower spring pad of a shock absorber with a lift structure according to claim 1, characterized in that: The lift structure (9) is provided with a protrusion (901) and a groove (902). The outer ring of the protrusion (901) is provided with a groove (902). The protrusion (901) and the groove (902) are integrally formed. A second spring pad (7) is embedded in the groove (902).

6. The lower spring pad of a shock absorber with a lift structure according to claim 1, characterized in that: The lift structure (9) is adapted to the spring (6), and the lift structure (9) is in contact with the lower end ring surface of the spring (6).

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