Shock absorber convenient to maintain

Abstract

The utility model relates to a shock absorber convenient to maintain, which belongs to the technical field of shock absorbers and comprises a shock absorber piston cylinder, a dustproof sleeve, a positioning strap and a fixing bolt, the shock absorber piston cylinder is provided with a piston rod, the piston rod is sleeved with a damping spring, the shock absorber piston cylinder is fixedly provided with a lower connecting plate, and the piston rod is fixedly provided with an upper connecting plate. The two ends of the dustproof sleeve are fixedly connected with rubber clamping sleeves. The dustproof sleeve with the zipper type opening and closing structure is arranged, and the two ends of the dustproof sleeve are connected with the shock absorber through the clamping structures, so that silt, dust, gravels and the like can be effectively prevented from invading a gap between a piston rod of the shock absorber and an oil seal, a sealing piece is prevented from being abraded or scratched, ultraviolet rays are isolated, and aging of oil seal rubber is delayed; when maintenance is needed, the dustproof sleeve can be detached without detaching the shock absorber from equipment, and therefore the dustproof sleeve can be replaced conveniently, and lubricating oil can be smeared conveniently to maintain the shock absorber.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shock absorber, especially to a shock absorber convenient to maintain. BACKGROUND

[0002] Shock absorber is used to restrain the shock and impact from the road when the spring rebounds after absorbing the shock, and is widely used in automobiles to accelerate the attenuation of the vibration of the frame and the body, so as to improve the driving smoothness of the automobile, and the shock absorber needs to be detected after long time use.

[0003] Through the search, the existing Chinese patent with the publication number CN202322346552.5 discloses a kind of automobile shock absorber convenient to maintain, by rubber protective sleeve, plug-in rod, limiting plate and first spring, when using, rubber protective sleeve is installed between first connecting seat and second connecting seat, plug-in rod is pulled outward, so that the two ends of rubber protective sleeve are embedded into the inside of first connecting seat and second connecting seat respectively, when plug-in rod is pulled, the first spring of the outer end of plug-in rod will be deformed, the first spring of deformation will generate a force to the inside of plug-in rod, when plug-in rod is released, plug-in rod will penetrate the inner wall of rubber protective sleeve to fix rubber protective sleeve, so as to facilitate the replacement of rubber protective sleeve, while avoiding stone or rain to reduce the service life of shock absorber.

[0004] The above technical scheme has the following defects, the dust cover in the structure of shock absorber is fixed by plug-in rod, so as to facilitate disassembly and replacement, but in actual use, the two ends of shock absorber are usually connected with automobile, and the dust cover needs to be disassembled when maintenance is carried out, in order to facilitate the disassembly and replacement of dust cover of shock absorber, a kind of shock absorber convenient to maintain is proposed, dust cover with zipper opening and closing structure is arranged, and the two ends are connected with shock absorber through clamping structure, so as to effectively prevent mud, dust, gravel and other things from invading the gap between shock absorber piston rod and oil seal, avoid sealing element wear or scratch, isolate ultraviolet light to delay the aging of oil seal rubber, when maintenance is needed, dust cover can be disassembled without removing shock absorber from equipment, so as to facilitate the replacement of dust cover and the application of lubricating oil for shock absorber maintenance.

[0005] Therefore, the present application improves the above problems and solves them by means of deep research and application of theories.

[0006] The information disclosed in the background section of this document is only intended to deepen the understanding of the overall background of the utility model, and should not be regarded as acknowledging or implying in any form that the information constitutes prior art known to those skilled in the art. UTILITY MODEL CONTENT

[0007] The utility model provides a shock absorber convenient to maintain, has solved the problem of above -mentioned background, can effectively prevent silt, dust, gravel etc. Invade the gap between shock absorber piston rod and oil seal, avoid sealing element abrasion or scratch, insulate ultraviolet light and delay the ageing of oil seal rubber, when needing maintenance, can take off the dustproof cover without the shock absorber from the equipment to tear down, thereby being convenient for replacing dustproof cover and smearing lubricating oil to carry out shock absorber maintenance.

[0008] The utility model discloses a shock absorber convenient to maintain, including shock absorber piston cylinder, dustproof cover, positioning hoop, fixed bolt, shock absorber piston cylinder is provided with piston rod, the piston rod outer cover is equipped with damping spring, shock absorber piston cylinder fixedly installed lower -positioned connecting plate, the piston rod fixedly installed is positioned upper connecting plate, both ends of dustproof cover all are fixedly connected with rubber clamp sleeve, and the one side of dustproof cover and rubber clamp sleeve all is provided with opening, the opening of dustproof cover is provided with waterproof zipper, the rubber clamp sleeve can be connected with lower -positioned connecting plate and positioned upper connecting plate through positioning hoop.

[0009] On the basis of above-mentioned technical scheme, the utility model can also make the following improvement.

[0010] Further, the opening of the dustproof cover is provided with a protective baffle, the protective baffle shields the waterproof zipper, and the protective baffle can further shield the waterproof zipper, thereby reducing the external dust attached to the waterproof zipper and affecting the service life.

[0011] Further, the dustproof cover and the protective baffle are both made of rubber cloth material.

[0012] Further, the positioning hoop is provided with a bolt hole corresponding to the fixed bolt, and the positioning hoop can position the rubber clamp sleeve through the fixed bolt.

[0013] Further, the lower-positioned connecting plate and the positioned upper connecting plate are both provided with a heat dissipation hole, and a dust filter screen is fixedly installed on the inner wall of the heat dissipation hole, when the shock absorber is stretched or contracted, the air in the dustproof cover can be compressed, the gas can enter and exit from the heat dissipation hole to assist heat dissipation, and the dust filter screen can prevent dust from entering during heat dissipation.

[0014] Further, the lower-positioned connecting plate and the positioned upper connecting plate are both provided with an annular groove corresponding to the rubber clamp sleeve, the rubber clamp sleeve is provided with a concave cross section matched with the annular groove, so that the rubber clamp sleeve can be stably attached to the lower-positioned connecting plate and the positioned upper connecting plate for installation, and the protective effect of the dustproof cover at both ends is ensured.

[0015] Further, the rubber clamp sleeve is provided with a hoop groove corresponding to the positioning hoop, and the positioning hoop is installed at the hoop groove through the fixed bolt, so that the positioning hoop can be uniformly attached to the rubber clamp sleeve for installation.

[0016] Further, two ends of the damping spring are connected with the lower connecting plate and the upper connecting plate respectively, and the damping spring can be stably stretched and contracted under the limiting action of the piston rod.

[0017] The shock absorber provided by the utility model has the following advantages:

[0018] 1. When the shock absorber needs to be lubricated, the shock absorber piston cylinder and the piston rod do not need to be disassembled from the equipment, the waterproof zipper can be opened by pushing away the protective strip, the opening of the dust cover can be opened, and then the inner part can be added with lubricating oil, and the waterproof zipper can be closed after use, so that the shock absorber does not need to be disassembled, and maintenance is more convenient.

[0019] 2. When the shock absorber needs to be further maintained and repaired, the fixing bolt at the position of the positioning hoop can be disassembled, and the positioning hoop can be taken off from the rubber sleeve, so that the dust cover and the rubber sleeve can be separated from the shock absorber at the opening, and then the shock absorber piston cylinder, the piston rod and the damping spring can be maintained and repaired, and if necessary, the shock absorber piston cylinder and the piston rod can be disassembled, and if the shock absorber piston cylinder and the piston rod do not need to be disassembled, the cleaned or new dust cover can be installed after maintenance.

[0020] 3. The dust cover is sleeved on the outer wall of the piston rod, the rubber sleeves on the two sides can be arranged in the annular grooves of the lower connecting plate and the upper connecting plate respectively, and then the rubber sleeves can be fixed, the waterproof zipper can be pulled up to close the opening of the dust cover, and the rubber sleeves and the dust cover can wrap the piston rod and the damping spring to protect them.

[0021] 4. When the damping spring is stretched and contracted, the dust cover is synchronously stretched and contracted, and the air in the dust cover can also be stretched and contracted, so that the air can flow through the heat dissipation holes, thereby assisting the shock absorber in heat dissipation, and the dust screen can filter dust from the air holes, thereby ensuring the heat dissipation function and preventing dust from entering.

[0022] 5. The shock absorber has the dust cover with the zipper type opening and closing structure, and the two ends are connected with the shock absorber through the clamping structure, so that the shock absorber piston rod and the oil seal can be effectively prevented from being invaded by mud, dust and gravel, and the sealing element can be prevented from being worn or scratched, and the aging of the oil seal rubber can be delayed by isolating ultraviolet rays, and when maintenance is needed, the dust cover can be disassembled without disassembling the shock absorber from the equipment, so that the dust cover can be replaced and the shock absorber can be maintained by lubricating the oil.

[0023] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, and the utility model can be implemented according to the content of the specification, and the following will be described in detail in combination with the preferred embodiments of the utility model and the drawings. The specific implementation of the utility model is given in detail by the following embodiments and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0025] Figure 1 A structure schematic view of the shock absorber convenient to maintain provided by one embodiment of the present application;

[0026] Figure 2 A front view of the shock absorber convenient to maintain provided by one embodiment of the present application;

[0027] Figure 3 A structure schematic view of the dust cover in the shock absorber convenient to maintain provided by one embodiment of the present application;

[0028] Figure 4 A top view of the dust cover in the shock absorber convenient to maintain provided by one embodiment of the present application.

[0029] In the drawings, the component list represented by each sign is as follows:

[0030] 1, shock absorber piston cylinder; 2, piston rod; 3, shock absorbing spring; 4, lower connecting plate; 5, upper connecting plate; 6, dust cover; 7, rubber sleeve; 8, waterproof zipper; 9, protective baffle; 10, positioning hoop; 11, fixing bolt; 12, heat dissipation hole; 13, dust filter screen; 14, annular groove; 15, hoop groove. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings. Figures 1-4 The principles and features of the present application are described, the examples are only used to explain the present application, and are not used to limit the scope of the present application. In the following paragraphs, the present application is described in more detail with reference to the accompanying drawings. The advantages and features of the present application will be more apparent according to the following description and claims. It should be noted that the drawings are very simplified and use non-precise proportions, only to facilitate, clear and assist the purpose of explaining the embodiments of the present application.

[0032] It should be noted that when the component is referred to as "fixed to" another component, it can be directly on another component or there can be a middle component. When a component is considered to be "connected" to another component, it can be directly connected to another component or there can be a middle component. When a component is considered to be "provided on" another component, it can be directly provided on another component or there can be a middle component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1-4 As shown, a shock absorber that is easy to maintain includes a shock absorber piston cylinder 1, a dust cover 6, a positioning band 10, and fixing bolts 11. The shock absorber piston cylinder 1 is provided with a piston rod 2, and a shock absorber spring 3 is sleeved on the piston rod 2. A lower connecting plate 4 is fixedly installed on the shock absorber piston cylinder 1, and an upper connecting plate 5 is fixedly installed on the piston rod 2. Rubber sleeves 7 are fixedly connected to both ends of the dust cover 6. An opening is provided on one side of both the dust cover 6 and the rubber sleeves 7. A waterproof zipper 8 is provided at the opening of the dust cover 6. The rubber sleeves 7 can be connected to the lower connecting plate 4 and the upper connecting plate 5 through the positioning band 10.

[0035] Preferably, the opening of the dust cover 6 is provided with a protective strip 9, which covers the waterproof zipper 8. The protective strip 9 can further cover and protect the waterproof zipper 8, thereby reducing the amount of external dust adhering to the waterproof zipper 8 and affecting its service life.

[0036] Preferably, both the dust cover 6 and the protective strip 9 are made of rubber cloth.

[0037] Preferably, the positioning band 10 has bolt holes corresponding to the fixing bolts 11, and the positioning band 10 can be used to position the rubber sleeve 7 through the fixing bolts 11.

[0038] Preferably, both the lower connecting plate 4 and the upper connecting plate 5 are provided with heat dissipation holes 12. A dust filter 13 is fixedly installed on the inner wall of the heat dissipation hole 12. When the shock absorber extends or retracts, the air inside the dust cover 6 can be compressed, and the gas can enter and exit through the heat dissipation hole 12 to assist in heat dissipation. The dust filter 13 can prevent dust from entering during heat dissipation.

[0039] Preferably, both the lower connecting plate 4 and the upper connecting plate 5 have annular grooves 14 corresponding to the rubber sleeve 7. The rubber sleeve 7 is configured with a concave cross section that matches the annular groove 14, so that the rubber sleeve 7 can stably fit the lower connecting plate 4 and the upper connecting plate 5 for installation, and ensure the protective effect at both ends of the dust cover 6.

[0040] Preferably, the rubber sleeve 7 has a band groove 15 corresponding to the positioning band 10, and the positioning band 10 is installed in the band groove 15 by fixing bolts 11, so that the positioning band 10 can be evenly fitted to the rubber sleeve 7 for installation.

[0041] Preferably, the two ends of the damping spring 3 are connected with the lower connecting plate 4 and the upper connecting plate 5 respectively, and the damping spring 3 can be stretched and contracted stably under the limiting action of the piston rod 2.

[0042] The specific working principle and use method of the utility model are as follows: when the shock absorber needs to be maintained, the shock absorber piston cylinder 1 and the piston rod 2 do not need to be disassembled from the equipment, the waterproof zipper 8 can be opened by pushing away the protective baffle 9, the opening of the dustproof sleeve 6 can be opened, the fixing bolt 11 at the position of the positioning hoop band 10 is dismounted, the positioning hoop band 10 can be taken off from the rubber clamping sleeve 7, the dustproof sleeve 6 and the rubber clamping sleeve 7 can be separated from the shock absorber at the opening, and then the shock absorber piston cylinder 1, the piston rod 2 and the damping spring 3 can be lubricated and other maintenance and repair can be carried out, if necessary, the shock absorber piston cylinder 1 and the piston rod 2 are dismounted, if the shock absorber piston cylinder 1 and the piston rod 2 do not need to be dismounted and the maintenance is completed, the cleaned or new dustproof sleeve 6 can be installed, the dustproof sleeve 6 is sleeved on the outer wall of the piston rod 2, the rubber clamping sleeves 7 on both sides can be respectively arranged in the annular grooves 14 of the lower connecting plate 4 and the upper connecting plate 5, and then fixed after the sleeving is completed, the opening of the dustproof sleeve 6 can be closed by pulling up the waterproof zipper 8, the positioning hoop band 10 is sleeved on the waterproof zipper 8 of the rubber clamping sleeve 7 by the fixing bolt 11, and the rubber clamping sleeves 7 on both sides are positioned at the positions of the lower connecting plate 4 and the upper connecting plate 5, the rubber clamping sleeves 7 on both sides and the dustproof sleeve 6 can wrap the piston rod 2 and the damping spring 3 for protection, the dustproof sleeve 6 can be stretched and contracted synchronously when the damping spring 3 is stretched and contracted, the air in the dustproof sleeve 6 can also be stretched and contracted, air can flow through the heat dissipation holes 12, and then the shock absorber is assisted to dissipate heat, the dust filter screen 13 can filter dust of the heat dissipation air holes, and the heat dissipation function is ensured while dust is prevented from entering.

[0043] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form; any ordinary technical personnel in the industry can implement the utility model according to the drawings and the above description; however, any equivalent changes, modifications and evolution of the above embodiment made by the technical personnel familiar with the professional without departing from the technical scheme of the utility model are equivalent embodiments of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiment made according to the essential technology of the utility model are still within the protection scope of the technical scheme of the utility model.

Claims

1. A shock absorber of easy maintenance type comprising a shock absorber piston cylinder (1), a dust boot (6), a positioning band (10), a fixing bolt (11), characterized in that: The shock absorber piston cylinder (1) is provided with a piston rod (2), the piston rod (2) is provided with a shock absorbing spring (3), the shock absorber piston cylinder (1) is fixedly installed with a lower connecting plate (4), the piston rod (2) is fixedly installed with an upper connecting plate (5), both ends of the dust cover (6) are fixedly connected with rubber clamping sleeves (7), one side of the dust cover (6) and the rubber clamping sleeve (7) is provided with an opening, the opening of the dust cover (6) is provided with a waterproof zipper (8), the rubber clamping sleeve (7) can be connected with the lower connecting plate (4) and the upper connecting plate (5) through the positioning hoop band (10).

2. The easy maintenance shock absorber according to claim 1, wherein The opening of the dust cover (6) is provided with a protective baffle (9), and the protective baffle (9) shields the waterproof zipper (8).

3. The easy maintenance shock absorber according to claim 2, wherein The dust cover (6) and the protective baffle (9) are both rubber cloth materials.

4. The easy maintenance shock absorber of claim 1 wherein, The positioning hoop band (10) is provided with a bolt hole corresponding to the fixing bolt (11).

5. The easy maintenance shock absorber of claim 1, wherein The lower connecting plate (4) and the upper connecting plate (5) are both provided with a heat dissipation hole (12), and the inner wall of the heat dissipation hole (12) is fixedly installed with a dust filter net (13).

6. The easy maintenance shock absorber of claim 1, wherein The lower connecting plate (4) and the upper connecting plate (5) are both provided with an annular groove (14) corresponding to the rubber clamping sleeve (7), and the rubber clamping sleeve (7) is provided with a concave cross section matched with the annular groove (14).

7. The easy maintenance shock absorber of claim 1 wherein, The rubber clamping sleeve (7) is provided with a hoop band groove (15) corresponding to the positioning hoop band (10), and the positioning hoop band (10) is installed at the hoop band groove (15) through the fixing bolt (11).

8. The easy maintenance shock absorber of claim 1, wherein The shock absorbing spring (3) is connected with the lower connecting plate (4) and the upper connecting plate (5) respectively.

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