A shock absorber for dust-proof device with no abnormal noise and wear resistance

Abstract

The present invention discloses a dust-proof device shock absorber with no abnormal noise and wear resistance, including a shock absorber, a dust-proof air bag is arranged on the outside of the shock absorber, a first fixed block is arranged in the inner cavity of the dust-proof air bag, and second limit blocks are fixedly connected to both sides of the outside of the first fixed block. In the present invention, a first shock-absorbing spring is sleeved on the outside of the hydraulic oil cylinder, so that the pressure of the second fixed block to the hydraulic oil cylinder has a certain buffer, thereby reducing the friction of the hydraulic oil cylinder, and a second shock-absorbing spring is installed between the first limit plate and the second limit plate. The setting of the second shock-absorbing spring reduces the wear of the hydraulic oil cylinder when it is under pressure, so that the pressure has a certain buffer. The setting of the first limit plate and the second limit plate greatly improves the wear resistance of the shock absorber. The two second fixed blocks are symmetrically distributed with respect to the horizontal center line of the first fixed block, because the effects are mutual, and the design of the symmetrical structure greatly increases the pressure resistance of the shock absorber and greatly improves the practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of shock absorbers, and in particular relates to a dust-proof device shock absorber which is free of abnormal noise and resistant to wear. Background Art

[0002] Shock absorbers are used to suppress the vibration caused by the rebound of the spring after absorbing shock and the impact from the road. From the perspective of damping materials, there are mainly two types of shock absorbers: hydraulic and pneumatic. There is also a variable damping shock absorber. The shock absorber and the elastic element are responsible for buffering impact and shock absorption. If the damping force is too large, the elasticity of the suspension will deteriorate and even the shock absorber connector will be damaged. Therefore, it is necessary to adjust the contradiction between the elastic element and the shock absorber. Shock absorbers are widely used in automobiles to accelerate the attenuation of frame and body vibrations to improve the driving smoothness of the car. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road, the spring itself will still have reciprocating motion, and the shock absorber is used to suppress this spring jump.

[0003] However, the existing shock absorbers, first of all, have a complex structure, and the wear noise between the shock absorber structures and long-term wear directly affect the service life of the shock absorbers, and the abnormal noise cannot be eliminated, which in turn affects the use of users. Secondly, the existing shock absorbers have low pressure resistance, which leads to serious damage to the shock absorbers and reduces the service life of the shock absorbers. Finally, the existing shock absorbers do not have a dust-proof effect, which affects the cleanliness of the shock absorbers. Summary of the invention

[0004] The purpose of the present invention is to provide a dustproof device shock absorber which is wear-resistant and has no abnormal noise in order to solve the problems that the shock absorber is not wear-resistant, pressure-resistant and dust-proof.

[0005] The technical solution adopted by the present invention is as follows: a dust-proof device shock absorber with no abnormal noise and wear resistance, including a shock absorber, a dust-proof airbag is arranged on the outside of the shock absorber, a first fixed block is arranged in the inner cavity of the dust-proof airbag, second limit blocks are fixedly connected to the two sides of the outside of the first fixed block, the top and bottom of the first fixed block are fixedly connected to the first limit plate, the top and bottom of the first fixed block are provided with a second fixed block, the side of the second fixed block close to the first fixed block is fixedly connected to the second limit plate, the first limit blocks are fixedly connected to the two sides of the outside of the second fixed block, a rubber pad is fixedly connected between the first limit block and the second limit block, a hydraulic cylinder is installed between the first limit plate and the second limit plate, and a second shock-absorbing spring is installed between the first limit plate and the second limit plate.

[0006] Wherein, grooves for cooperating with the rubber pad are provided on the top and bottom of the second limit block.

[0007] There are two hydraulic cylinders in total, and the first shock absorbing spring is sleeved on the outside of the two hydraulic cylinders.

[0008] There is one first fixing block in total, and the first fixing block is located at the horizontal center of the dustproof airbag.

[0009] There are four rubber pads in total, and all of the rubber pads are located between the first limiting block and the second limiting block.

[0010] There are eight second shock absorbing springs in total, and the horizontal center lines of the eight second shock absorbing springs are collinear with the diagonal line of the first fixing block.

[0011] Wherein, the vertical cross-sections of the first limiting plate and the second limiting plate are in an eight-shaped structure.

[0012] There are two second fixing blocks in total, and the two second fixing blocks are fixedly connected to support columns on one side away from the first fixing block. The two support columns penetrate the dustproof airbag, and the extending ends are fixedly connected to pressure plates.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0014] 1. In the present invention, a first shock-absorbing spring is sleeved on the outside of the hydraulic cylinder. The setting of the first shock-absorbing spring allows the pressure of the second fixed block to be buffered to a certain extent, thereby reducing the friction of the hydraulic cylinder and thereby increasing the service life of the shock absorber. A second shock-absorbing spring is installed between the first limit plate and the second limit plate. The setting of the second shock-absorbing spring reduces the wear of the hydraulic cylinder when it is under pressure, thereby allowing a certain buffer when under pressure. The setting of the first limit plate and the second limit plate reduces the abnormal noise caused by the misaligned installation and improves the practicality of the shock absorber. A rubber pad is arranged between the first limit block and the second limit block. The setting of the rubber pad protects the stability of the second shock-absorbing spring and has a certain shock-absorbing and buffering effect, which greatly reduces friction and thus increases wear resistance.

[0015] 2. In the present invention, second fixed blocks are provided on the top and bottom of the first fixed block, and the two second fixed blocks are symmetrically distributed about the horizontal center line of the first fixed block. The first fixed block transmits pressure to the second fixed block at the bottom which is symmetrically structured about the horizontal center line of the first fixed block, and to the hydraulic cylinder and the second shock-absorbing spring at the bottom. Because the force is mutual, the second shock-absorbing spring and the hydraulic cylinder at the bottom of the first fixed block rebound the pressure to the second shock-absorbing spring and the hydraulic cylinder at the top of the first fixed block. The design of the symmetrical structure greatly reduces the pressure transmitted to the pressure plate at the bottom of the dust-proof airbag, thereby greatly increasing the pressure resistance of the shock absorber and greatly improving the practicality.

[0016] 3. In the present invention, the support column is slidably connected to the dustproof airbag. The provision of the dustproof airbag not only plays a role in sound insulation and noise reduction, but also prevents the shock absorber from accumulating dust, which greatly facilitates later cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a dust-proof device shock absorber with no abnormal noise and wear resistance according to the present invention;

[0018] Figure 2 It is a side schematic diagram of the present invention;

[0019] Figure 3 It is a schematic top view of AA in the present invention.

[0020] Markings in the figure: 1. shock absorber; 2. dustproof airbag; 3. support column; 4. pressure plate; 5. first fixed block; 6. first limit plate; 7. hydraulic cylinder; 8. first shock-absorbing spring; 9. second fixed block; 10. second limit plate; 11. first limit block; 12. rubber pad; 13. second shock-absorbing spring; 14. second limit block. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Reference Figure 1-3A dust-proof device shock absorber with no abnormal sound and wear resistance comprises a shock absorber 1, and a dust-proof airbag 2 is arranged on the outside of the shock absorber 1. The arrangement of the dust-proof airbag 2 not only plays the role of sound insulation and noise reduction on the one hand, but also prevents the shock absorber 1 from accumulating dust, which greatly facilitates later cleaning. A first fixed block 5 is arranged in the inner cavity of the dust-proof airbag 2, and the second limiting blocks 14 are fixedly connected to the two sides of the outside of the first fixed block 5, and the first limiting plate 6 is fixedly connected to the top and bottom of the first fixed block 5. A second fixed block 9 is arranged on the top and bottom of the first fixed block 5, and the second limiting plate 10 is fixedly connected to the side of the second fixed block 9 close to the first fixed block 5. The first limiting blocks 11 are fixedly connected to the two sides of the outside of the second fixed block 9, and a rubber pad 12 is fixedly connected between the first limiting block 11 and the second limiting block 14. A hydraulic cylinder 7 is installed between the first limiting plate 6 and the second limiting plate 10, and a second shock-absorbing spring 13 is installed between the first limiting plate 6 and the second limiting plate 10.

[0024] Furthermore, grooves for cooperating with the rubber pad 12 are provided on the top and bottom of the second limiting block 14 , which is more conducive to the coordinated use of the rubber pad 12 .

[0025] Furthermore, there are two hydraulic cylinders 7, and the first shock-absorbing spring 8 and the second shock-absorbing spring 13 are sleeved on the outside of the two hydraulic cylinders 7, which reduces the wear of the hydraulic cylinder 7 when it is under pressure, so that the pressure is buffered to a certain extent.

[0026] Furthermore, there is only one first fixing block 5 , and the first fixing block 5 is located at the horizontal center of the dustproof airbag 2 . The setting of the first fixing block 5 is conducive to the setting of a symmetrical structure and improves the compressive energy resistance of the shock absorber 1 .

[0027] Furthermore, there are four rubber pads 12 in total, and all of the rubber pads 12 are located between the first limiting block 11 and the second limiting block 14. The provision of the rubber pads 12 not only protects the stability of the second shock-absorbing spring 13, but also has a certain shock-absorbing and buffering effect.

[0028] Furthermore, there are eight second shock-absorbing springs 13, and the horizontal center lines of the eight second shock-absorbing springs 13 are collinear with the diagonal line of the first fixed block 5. The provision of the second shock-absorbing springs 13 reduces the wear of the hydraulic cylinder 7 when it is under pressure, so that the pressure is buffered to a certain extent.

[0029] Furthermore, the vertical cross-sections of the first limiting plate 6 and the second limiting plate 10 are in an eight-shaped structure. The arrangement of the first limiting plate 6 and the second limiting plate 10 reduces abnormal noise caused by misaligned installation and improves the practicality of the shock absorber 1.

[0030] Furthermore, two second fixing blocks 9 are provided, and the two second fixing blocks 9 are fixedly connected to the support column 3 on one side away from the first fixing block 5. The two support columns 3 penetrate the dustproof airbag 2, and the extended ends are fixedly connected to the pressure plate 4, which improves the stability of the shock absorber 1.

[0031] Working principle: When in use, when the top pressure plate 4 of the shock absorber 1 is compressed, the support column 3 at the bottom will be squeezed, and the support column 3 is slidably connected with the dust-proof airbag 2. The setting of the dust-proof airbag 2 not only plays a role in sound insulation and noise reduction, but also prevents the shock absorber 1 from accumulating dust, which greatly facilitates later cleaning. The support column 3 squeezes the second fixed block 9 and the first limit blocks 11 at both ends of the second fixed block 9. The first fixed block 5 is arranged at the center of the dust-proof airbag 2, and a hydraulic cylinder 7 is fixedly connected between the first fixed block 5 and the second fixed block 9. The first damping spring 8 is sleeved on the outside of the hydraulic cylinder 7. The first damping spring 8 is set so that the pressure of the second fixed block 9 on the hydraulic cylinder 7 has a certain buffer, thereby reducing the friction of the hydraulic cylinder 7, thereby improving the service life of the shock absorber 1. The pressure of the second fixed block 9 is transmitted to the first fixed block 5 through the hydraulic cylinder 7, and the top and bottom of the first fixed block 5 are fixedly connected to the first limit plate 6, and the second fixed block 9 is fixedly connected to the side close to the first fixed block 5. The first limit plate 6 and the second limit plate 10 are fixedly connected. A second shock-absorbing spring 13 is installed between the first and second limit blocks 11 and 14. The second shock-absorbing spring 13 reduces the wear of the hydraulic cylinder 7 when it is under pressure, so that the pressure has a certain buffer. The first limit plate 6 and the second limit plate 10 reduce the abnormal noise caused by the misaligned installation and improve the practicality of the shock absorber 1. A rubber pad 12 is arranged between the first limit block 11 and the second limit block 14. The arrangement of the rubber pad 12 not only protects the stability of the second shock-absorbing spring 13, but also has a certain shock-absorbing and buffering effect. When the pressure is transmitted to the first fixed block 5, the first fixed block The fixed block 5 then transmits the pressure to the second fixed block 9 at the bottom which is symmetrical with the horizontal center line of the first fixed block 5, as well as the hydraulic cylinder 7 and the second shock-absorbing spring 13 at the bottom. Because the force is mutual, the second shock-absorbing spring 13 and the hydraulic cylinder 7 at the bottom of the first fixed block 5 rebound the pressure to the second shock-absorbing spring 13 and the hydraulic cylinder 7 at the top of the first fixed block 5. The design of the symmetrical structure greatly reduces the pressure transmitted to the pressure plate 4 at the bottom of the dust-proof airbag 2, thereby greatly increasing the pressure resistance of the shock absorber 1 and greatly improving its practicality.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust-proof device shock absorber with no abnormal noise and wear resistance, comprising a shock absorber (1), characterized in that: The shock absorber (1) is provided with a dustproof airbag (2) on the outside, and a first fixed block (5) is provided in the inner cavity of the dustproof airbag (2). Second limit blocks (14) are fixedly connected to both sides of the outside of the first fixed block (5). First limit plates (6) are fixedly connected to the top and bottom of the first fixed block (5). Second fixed blocks (9) are provided on the top and bottom of the first fixed block (5). A second limit plate (10) is fixedly connected to the side of the second fixed block (9) close to the first fixed block (5). First limit blocks (11) are fixedly connected to both sides of the outside of the second fixed block (9). A rubber pad (12) is fixedly connected between the first limit block (11) and the second limit block (14). A hydraulic cylinder (7) is installed between the first limit plate (6) and the second limit plate (10). A second shock-absorbing spring (13) is installed between the first limit plate (6) and the second limit plate (10). The top and bottom of the second limit block (14) are both provided with grooves for use with the rubber pad (12); There are two hydraulic cylinders (7) in total, and the first damping spring (8) is sleeved on the outside of the two hydraulic cylinders (7); There is a total of one first fixing block (5), and the first fixing block (5) is located at the horizontal center position of the dustproof airbag (2); A total of four rubber pads (12) are provided, and the rubber pads (12) are all located between the first limit block (11) and the second limit block (14); A total of eight second shock absorbing springs (13) are provided, and the horizontal center lines of the eight second shock absorbing springs (13) are collinear with the diagonal line of the first fixing block (5); The vertical cross-sections of the first limiting plate (6) and the second limiting plate (10) are in an eight-shaped structure; Two second fixing blocks (9) are provided in total, and the two second fixing blocks (9) are fixedly connected to a support column (3) on one side away from the first fixing block (5); the two support columns (3) penetrate the dustproof airbag (2), and the extended ends are fixedly connected to a pressure plate (4).

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