Improved shock absorber

Abstract

The utility model discloses an improved shock absorber, and relates to the technical field of shock absorbers, the improved shock absorber comprises two piston rods and a piston plate, the two piston rods are movably arranged in the shock absorption cylinder, and the opposite ends of the two piston rods penetrate out of the ends of the shock absorption cylinder correspondingly; piston plates are fixed to the opposite ends of the two piston rods and located in the damping cylinder, an inner damping spring is fixed between the two piston plates, and the portions, located outside the damping cylinder, of the two piston rods are movably sleeved with outer damping springs. The damping device further comprises a protection assembly, the protection assembly comprises two protection cylinders, one ends of the two protection cylinders are arranged at the ends of the outer sides of the damping cylinders in a sliding and sleeving mode respectively, and one ends of the piston rods are arranged in the protection cylinders in a sleeving mode. The problems that in the prior art, for outdoors with poor road conditions, flying stones are splashed and ejected to a rubber corrugated pipe dust cover, the dust cover is damaged, a shock absorber is polluted, and the shock absorption effect and the service life of the shock absorber are affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to an improved shock absorber. Background Art

[0002] A shock absorber is used to suppress the oscillation after the spring absorbs shock and the impact from the road surface. It is widely used in automobiles to accelerate the attenuation of the vibration of the vehicle frame and the body, so as to improve the ride comfort of the automobile.

[0003] During the driving process of an automobile, the automobile shock absorber is generally exposed outside, which will cause dust and sediment to deposit on the spring and the piston rod during the driving process of the automobile, resulting in corrosion and aging of the automobile shock absorber. Moreover, the dust attached to the piston rod will enter the inside of the shock absorber along with the movement of the shock absorber, thus affecting the performance of the shock absorber. A common solution is to sleeved a rubber corrugated pipe dust cover on the shock absorber. However, for the outdoor with relatively poor road conditions, flying stones will splash and eject onto the rubber corrugated pipe dust cover, causing damage to the dust cover, polluting the shock absorber, and affecting the shock absorption effect and service life of the shock absorber. Content of the Utility Model

[0004] By providing an improved shock absorber in the embodiment of the present application, the problem in the prior art that for the outdoor with relatively poor road conditions, flying stones will splash and eject onto the rubber corrugated pipe dust cover, causing damage to the dust cover, polluting the shock absorber, and affecting the shock absorption effect and service life of the shock absorber is solved.

[0005] The embodiment of the present application provides an improved shock absorber, which includes a shock absorber cylinder, piston rods and piston plates. There are two piston rods, and the two piston rods are movably arranged inside the shock absorber cylinder. The opposite ends of the two piston rods respectively penetrate through the ends of the shock absorber cylinder. Piston plates are fixed at the opposite ends of the two piston rods inside the shock absorber cylinder. An inner shock spring is fixed between the two piston plates. Outer shock springs are movably sleeved on the two piston rods outside the shock absorber cylinder;

[0006] The shock absorber further includes a protection assembly. The protection assembly includes two protection cylinders. One ends of the two protection cylinders are respectively slidably sleeved on the outer ends of the shock absorber cylinder. One end of the piston rod is sleeved inside the protection cylinder, and the end of the piston rod is fixedly connected to the top end of the inner wall of the same-side protection cylinder;

[0007] One end of the outer shock spring is fixedly connected to the shock absorber cylinder, and the other end of the outer shock spring is fixedly connected to the top end of the inner wall of the protection cylinder.

[0008] Preferably, the central axes of the shock absorber cylinder, the protection cylinder, the piston rods and the piston plates are on the same straight line.

[0009] Preferably, a horizontal plate is fixed on one side surface of the outer shock-absorbing spring close to the top end of the inner wall of the protection cylinder, and the other end of the horizontal plate is fixedly connected to the inner side wall of the protection cylinder.

[0010] Preferably, the horizontal plate is in a horizontal state.

[0011] Preferably, connecting plates are fixed to one ends of the two protection cylinders away from the inner shock-absorbing spring, and mounting seats are fixed to the other ends of the connecting plates.

[0012] Preferably, limiting plates are fixed to both sides of the bottom end of the protection cylinder, limiting grooves adapted to the limiting plates are formed on both sides of the outside of the shock-absorbing cylinder, and the limiting plates are slidably connected in the limiting grooves.

[0013] Preferably, one end of the protection cylinder close to the inner shock-absorbing spring is sleeved on the outside of the shock-absorbing cylinder, and the protection cylinder is slidably connected to the shock-absorbing cylinder;

[0014] The inner wall of the protection cylinder is in sliding fit with the outer wall of the shock-absorbing cylinder.

[0015] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0016] By adopting the inner shock-absorbing spring and the outer shock-absorbing spring, the shock-absorbing effect can be enhanced. By adopting the protection component and the protection cylinder, the outer shock-absorbing spring can be protected, preventing external dust from polluting the outer shock-absorbing spring and also avoiding the situation in the prior art where the dust-proof rubber sleeve is damaged by flying stones and pollutes the shock absorber, indirectly improving the service life of the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of an improved shock absorber of the present utility model;

[0018] Figure 2 is a schematic internal structure diagram of the protection cylinder of the improved shock absorber of the present utility model;

[0019] Figure 3 is a schematic enlarged partial structure diagram at A of the improved shock absorber of the present utility model;

[0020] Figure 4 is a schematic enlarged partial structure diagram at B of the improved shock absorber of the present utility model;

[0021] Figure 5 is a schematic front sectional structure diagram of the improved shock absorber of the present utility model;

[0022] Figure 6 is a schematic structural diagram of the horizontal plate of the improved shock absorber of the present utility model;

[0023] Figure 7Schematic structural view of the limiting plate of the shock absorber which is an improved type of the present utility model;

[0024] Figure 8 Bottom view structural view of the protective cylinder of the shock absorber which is an improved type of the present utility model;

[0025] Figure 9 Stereo structural view of the horizontal plate of the shock absorber which is an improved type of the present utility model.

[0026] In the figure: 100, shock absorber cylinder; 110, piston rod; 120, piston plate; 200, inner shock-absorbing spring; 300, outer shock-absorbing spring; 400, protective component; 410, protective cylinder; 420, horizontal plate; 430, limiting plate; 440, limiting groove; 500, mounting seat. Detailed implementation manners

[0027] For the convenience of understanding the present utility model, the present application will be described more comprehensively with reference to the relevant attached drawings; the attached drawings show the preferred implementation manners of the present utility model. However, the present utility model can be implemented in many different forms and is not limited to the implementation manners described herein; on the contrary, the purpose of providing these implementation manners is to make the disclosure of the present utility model understood more thoroughly and comprehensively.

[0028] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation manner.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs; the terms used in the description of the present utility model in this specification are only for the purpose of describing specific implementation manners and are not intended to limit the present utility model; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0030] As Figures 1 to 9 shown, the present application provides an improved shock absorber, including a shock absorber cylinder 100, a piston rod 110 and a piston plate 120. There are two piston rods 110, and the two piston rods 110 are movably arranged inside the shock absorber cylinder 100. The opposite ends of the two piston rods 110 respectively penetrate through the ends of the shock absorber cylinder 100. Piston plates 120 are fixed at the opposite ends of the two piston rods 110 located inside the shock absorber cylinder 100. An inner shock-absorbing spring 200 is fixed between the two piston plates 120. Outer shock-absorbing springs 300 are movably sleeved on the two piston rods 110 located outside the shock absorber cylinder 100;

[0031] It further includes a protection component 400, and the protection component 400 includes two protection cylinders 410. The two protection cylinders 410 correspond to the two piston rods 110. One ends of the two protection cylinders 410 are respectively sleeved on the outer ends of the shock-absorbing cylinder 100 in a sliding manner. One end of the piston rod 110 is sleeved inside the protection cylinder 410, and the end of the piston rod 110 is fixedly connected to the top end of the inner wall of the protection cylinder 410 on the same side;

[0032] One end of the outer shock-absorbing spring 300 is fixedly connected to the shock-absorbing cylinder 100, and the other end of the outer shock-absorbing spring 300 is fixedly connected to the top end of the inner wall of the protection cylinder 410.

[0033] Specifically, the central axes of the shock-absorbing cylinder 100, the protection cylinder 410, the piston rod 110, and the piston plate 120 are on the same straight line.

[0034] Specifically, a horizontal plate 420 is fixedly arranged on one side surface of the outer shock-absorbing spring 300 close to the top end of the inner wall of the protection cylinder 410, and the other end of the horizontal plate 420 is fixedly connected to the inner side wall of the protection cylinder 410.

[0035] Further specific description: Due to the design of the horizontal plate 420, the outer shock-absorbing spring 300 is fixedly connected to the protection cylinder 410. When the horizontal plate 420 moves up and down together with the protection cylinder 410, it can drive one end of the outer shock-absorbing spring 300 to move up and down stably, and can prevent the outer shock-absorbing spring 300 from being twisted left and right during the movement, thereby ensuring that the outer shock-absorbing spring 300 moves up and down stably in the vertical direction, reducing the damage to the outer shock-absorbing spring 300, and improving the service life of the outer shock-absorbing spring 300.

[0036] Specifically, the horizontal plate 420 is in a horizontal shape.

[0037] Further specific description: There are three horizontal plates 420 corresponding to the end of each outer shock-absorbing spring 300, and the three horizontal plates 420 are respectively fixedly connected to different positions of the end of the outer shock-absorbing spring 300.

[0038] Specifically, connecting plates are fixedly arranged at one ends of the two protection cylinders 410 far away from the inner shock-absorbing spring 200, and mounting seats 500 are fixedly arranged at the other ends of the connecting plates.

[0039] Specifically, limiting plates 430 are fixedly arranged on both sides at the bottom end of the protection cylinder 410, limiting grooves 440 adapted to the limiting plates 430 are formed on both sides of the outside of the shock-absorbing cylinder 100, and the limiting plates 430 are slidably connected in the limiting grooves 440.

[0040] Further specific description: There are two limiting plates 430 on the same protection cylinder 410, and the two limiting plates 430 are symmetrically arranged;

[0041] Specifically, one end of the protective cylinder 410 close to the inner shock-absorbing spring 200 is sleeved outside the shock-absorbing cylinder 100, and the protective cylinder 410 is slidably connected to the shock-absorbing cylinder 100;

[0042] The inner wall of the protective cylinder 410 and the outer wall of the shock-absorbing cylinder 100 are in sliding fit.

[0043] Further specific explanation: The structural design of the protective cylinder 410 and the shock-absorbing cylinder 100 protects the outer shock-absorbing spring 300 through the protective cylinder 410, avoiding external dust from polluting the outer shock-absorbing spring 300, and also avoiding the situation in the prior art where the dust-proof rubber sleeve is damaged by flying stones and pollutes the shock absorber, indirectly improving the service life of the shock absorber.

[0044] When the improved shock absorber of the embodiment of the present application is actually used: the shock absorber is installed on the vehicle through the mounting seat 500; during use, the inner shock-absorbing spring 200 and the outer shock-absorbing spring 300 can achieve a double shock-absorbing effect and can quickly reset during shock absorption, greatly improving the shock-absorbing function; in addition, during the up-and-down movement of the piston rod 110, the protective cylinder 410 also moves up and down accordingly. The protective cylinder 410 protects the outer shock-absorbing spring 300, avoiding external dust from polluting the outer shock-absorbing spring 300, and also avoiding the situation in the prior art where the dust-proof rubber sleeve is damaged by flying stones and pollutes the shock absorber, indirectly improving the service life of the shock absorber; the design of the limiting plate 430 and the limiting groove 440 enables the protective cylinder 410 to move up and down stably. The protective cylinder 410 drives the end of the outer shock-absorbing spring 300 to move up and down through the horizontal plate 420, ensuring the stability of the up-and-down movement of the outer shock-absorbing spring 300 and avoiding the situation where the outer shock-absorbing spring 300 is twisted left and right, causing damage and reducing the service life of the outer shock-absorbing spring 300.

[0045] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An improved shock absorber, comprising a shock absorber cylinder (100), a piston rod (110) and a piston plate (120). There are two piston rods (110). The two piston rods (110) are movably arranged inside the shock absorber cylinder (100). The opposite ends of the two piston rods (110) respectively penetrate through the ends of the shock absorber cylinder (100). Piston plates (120) are fixed at the opposite ends of the two piston rods (110) inside the shock absorber cylinder (100). It is characterized in that, An inner shock-absorbing spring (200) is fixed between two piston plates (120), and outer shock-absorbing springs (300) are movably sleeved on the outer sides of the shock-absorbing cylinder (100) on both of the two piston rods (110). It further includes a protection assembly (400). The protection assembly (400) includes two protection cylinders (410). One ends of the two protection cylinders (410) are respectively slidably sleeved on the outer ends of the shock-absorbing cylinder (100). One end of the piston rod (110) is sleeved inside the protection cylinder (410), and the end of the piston rod (110) is fixedly connected to the top end of the inner wall of the protection cylinder (410) on the same side. One end of the outer shock-absorbing spring (300) is fixedly connected to the shock-absorbing cylinder (100), and the other end of the outer shock-absorbing spring (300) is fixedly connected to the top end of the inner wall of the protection cylinder (410).

2. The improved shock absorber according to claim 1, characterized in that, The central axes of the shock-absorbing cylinder (100), the protection cylinder (410), the piston rod (110), and the piston plate (120) are on the same straight line.

3. The improved shock absorber according to claim 1, characterized in that, A horizontal plate (420) is fixedly connected to the surface of the outer shock-absorbing spring (300) on the side close to the top end of the inner wall of the protection cylinder (410), and the other end of the horizontal plate (420) is fixedly connected to the inner side wall of the protection cylinder (410).

4. The improved shock absorber according to claim 3, wherein, The horizontal plate (420) is in a horizontal state.

5. The improved shock absorber according to claim 1, characterized in that, Connecting plates are fixedly connected to the ends of the two protection cylinders (410) far away from the inner shock-absorbing spring (200), and mounting seats (500) are fixedly connected to the other ends of the connecting plates.

6. The improved shock absorber according to claim 1, wherein, Limit plates (430) are fixedly connected to both sides of the bottom end of the protection cylinder (410), and limit grooves (440) adapted to the limit plates (430) are formed on both sides of the outside of the shock-absorbing cylinder (100). The limit plates (430) are slidably connected in the limit grooves (440).

7. The improved shock absorber according to claim 1, wherein, The end of the protection cylinder (410) close to the inner shock-absorbing spring (200) is sleeved on the outside of the shock-absorbing cylinder (100), and the protection cylinder (410) is slidably connected to the shock-absorbing cylinder (100). The inner wall of the protection cylinder (410) is in sliding fit with the outer wall of the shock-absorbing cylinder (100).

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