Reliable sealing structure, shock absorber and vehicle

Abstract

The utility model provides a reliable sealing structure, shock absorber and vehicle, relates to shock absorber technical field, reliable sealing structure includes liquid reservoir, guider subassembly and oil seal subassembly, guider subassembly installs in liquid reservoir, liquid reservoir end portion has flanging structure, guider subassembly is provided with buckle riveting groove, liquid reservoir is provided with buckle riveting portion, oil seal subassembly is provided with the oil seal subassembly. The oil seal assembly comprises a sealing oil seal and a dustproof oil seal, the sealing oil seal and the dustproof oil seal are arranged on the two sides of the guider assembly respectively, and the flanging structure abuts against the dustproof oil seal. The sealing reliability of the product is improved through the flanging and riveting mode, the risk of oil leakage of an original structure can be reduced due to the fact that the dustproof oil seal is additionally arranged, the sealing performance is further improved, and external dust and foreign matter are isolated to the maximum extent; and meanwhile, the pulling-out force of the guider is enhanced in a flanging and riveting mode, and the service life of the shock absorber is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbers, in particular to a reliable sealing structure, a shock absorber and a vehicle. Background Art

[0002] Oil seals play a vital role in shock absorbers. The reasons for oil seal failure during the use of shock absorbers are also very complicated, and there are many influencing factors: materials, structures, design and manufacturing, and assembly quality, etc. There are currently two ways to package shock absorbers. In the old-fashioned flanging structure, the guide needs to cooperate with the working cylinder. The length of the working cylinder will affect the length of the product flanging. The clamping force and the amount of flanging during flanging will affect the sealing of the product. The sealing reliability is not high. The guide and liquid storage cylinder of the single-cylinder structure are assembled by riveting. The guide will directly contact the piston rod buffer block. The force on the buffer block during the movement of the shock absorber will directly act on the guide, which is easy to cause seal failure and reduce the life of the shock absorber. In addition, the traditional sealing structure generally has only one oil seal, the sealing effect is average, and the dustproof effect is poor. In view of the above defects, this application is proposed. Utility Model Content

[0003] The utility model aims to provide a reliable sealing structure, a shock absorber and a vehicle, an oil seal is added to the outside of the original single-cylinder shock absorber oil seal, and a flanging structure and a riveted buckle combination are adopted to increase the sealing performance of the product.

[0004] To solve the above problems, the utility model provides a reliable sealing structure, including a liquid storage cylinder, a guide assembly and an oil seal assembly, the guide assembly is installed in the liquid storage cylinder, the end of the liquid storage cylinder has a flange structure, the guide assembly is provided with a rivet groove, the liquid storage cylinder is provided with a rivet part, the rivet part is riveted into the rivet groove, the oil seal assembly includes a sealing oil seal and a dustproof oil seal, the sealing oil seal and the dustproof oil seal are respectively arranged on both sides of the guide assembly, and the flange structure presses the dustproof oil seal.

[0005] According to an embodiment of the utility model, a dust cover is provided on one side of the liquid storage cylinder having the flange structure.

[0006] According to an embodiment of the utility model, a piston rod buffer block is arranged on the outer side of the dust cover.

[0007] According to an embodiment of the utility model, the riveting portion adopts an eight-point riveting structure.

[0008] According to an embodiment of the utility model, an oil seal installation groove is provided on the guide assembly, and the oil seal assembly is installed in the oil seal installation groove.

[0009] A shock absorber comprises the above-mentioned reliable sealing structure.

[0010] According to an embodiment of the utility model, a floating piston is arranged in the liquid storage cylinder.

[0011] According to an embodiment of the utility model, the shock absorber further includes a solenoid valve assembly.

[0012] According to an embodiment of the utility model, the shock absorber further includes a loading portion.

[0013] A vehicle comprises the above-mentioned shock absorber.

[0014] The beneficial effect of the utility model is that the reliability of product sealing is improved by means of flanging and riveting, because the addition of a dustproof oil seal can reduce the risk of oil leakage in the original structure, further improve the sealing, and isolate external dust and foreign matter to the greatest extent; at the same time, the flanging and riveting methods enhance the pull-out force of the guide, which helps to increase the service life of the shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the overall structure of the shock absorber;

[0017] Figure 2 Schematic diagram of a reliable sealing structure. DETAILED DESCRIPTION

[0018] The following description is only used to disclose the utility model so that those skilled in the art can implement the utility model. The embodiments described below are only for example, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other solutions that do not deviate from the spirit and scope of the utility model.

[0019] [Example 1]

[0020] A reliable sealing structure such as Figure 1 , Figure 2 , including a liquid storage cylinder 1, a guide assembly 6 and an oil seal assembly 7, the guide assembly 6 is installed in the liquid storage cylinder 1, the end of the liquid storage cylinder 1 has a flange structure 11, the guide assembly 6 is provided with a rivet groove 62, the liquid storage cylinder 1 is provided with a rivet portion 12, the rivet portion 12 is riveted into the rivet groove 62, the oil seal assembly 7 includes a sealing oil seal 72 and a dustproof oil seal 71, the sealing oil seal 72 and the dustproof oil seal 71 are respectively arranged on both sides of the guide assembly 6, specifically, as Figure 2Oil seal mounting grooves 63 are provided on both sides of the guide assembly 6 , and the sealing oil seal 72 and the dustproof oil seal 71 are respectively installed in the oil seal mounting grooves 63 on both sides, and the flange structure 11 presses the dustproof oil seal 71 .

[0021] The main structure of the oil seal generally includes a vulcanized rubber part, wherein the dustproof oil seal 71 may also include a pressing structure to press the rubber part onto the piston rod.

[0022] During installation, first install the piston rod sealing oil seal 72 on the guide assembly 6, and then use the oil seal cover to fix the sealing oil seal 72 on the guide assembly 6. Next, on the single-cylinder machine, first rivet the assembled guide assembly 6 on the liquid storage cylinder 1, and then install the dustproof oil seal 71 on the upper end of the guide assembly 6. After the flanging structure 11 is formed on the liquid storage cylinder 1 by a flanging machine, the dustproof oil seal 71 is pressed and formed.

[0023] A dust cover 52 is provided on one side of the liquid storage cylinder 1 having the flange structure 11 .

[0024] A piston rod buffer block 51 is arranged outside the dust cover 52 .

[0025] Because an external oil seal (dustproof oil seal 71) is added, the risk of oil leakage in the original structure can be reduced; another reason is that the added external oil seal can have better sealing performance and isolate external dust and foreign matter to the greatest extent; and because a shock absorber flange structure 11 is added to the outside of the newly added oil seal, the pull-out force of the guide is structurally enhanced; the guide of the original structure will directly contact the piston rod buffer block, and the force exerted on the buffer block during the movement of the shock absorber will directly act on the guide, while the mouth of the new structure liquid storage cylinder is a flanged structure, and the force of the buffer block acts on the liquid storage cylinder of the shock absorber, reducing the buffering force of the guide, thereby increasing the service life of the shock absorber.

[0026] Preferably, the riveting portion 12 adopts an eight-point riveting structure.

[0027] Preferably, a sealing ring groove 61 is provided on the guide assembly, and a sealing ring 8 is installed in the sealing ring groove 61 .

[0028] A shock absorber includes the above-mentioned reliable sealing structure, and the reliable sealing structure is preferably used on a single-cylinder shock absorber.

[0029] The specific structure of the shock absorber in this embodiment is as follows Figure 1 A piston valve assembly 21, a piston rod 22 and a floating piston 9 are arranged in the liquid storage cylinder 1, a solenoid valve assembly 3 is connected to the liquid storage cylinder 1, a bottom cover is installed at one end of the liquid storage cylinder 1, and a loading part 4 is installed outside the bottom cover, and the loading part 4 is generally a loading lifting ring.

[0030] A vehicle comprises the above-mentioned shock absorber.

[0031] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed and modified in any way.

Claims

1. A reliable sealing structure, characterized in that: The invention comprises a liquid storage cylinder (1), a guide assembly (6) and an oil seal assembly (7), wherein the guide assembly (6) is installed in the liquid storage cylinder (1), the end of the liquid storage cylinder (1) has a flange structure (11), the guide assembly (6) is provided with a rivet groove (62), the liquid storage cylinder (1) is provided with a rivet portion (12), the rivet portion (12) is riveted into the rivet groove (62), the oil seal assembly (7) comprises a sealing oil seal (72) and a dustproof oil seal (71), the sealing oil seal (72) and the dustproof oil seal (71) are respectively arranged on both sides of the guide assembly (6), and the flange structure (11) presses against the dustproof oil seal (71).

2. The reliable sealing structure according to claim 1, characterized in that: A dust cover (52) is provided on one side of the liquid storage cylinder (1) having the flange structure (11).

3. The reliable sealing structure according to claim 2, characterized in that: A piston rod buffer block (51) is arranged outside the dust cover (52).

4. The reliable sealing structure according to any one of claims 1 to 3, characterized in that: The riveting portion (12) adopts an eight-point riveting structure.

5. The reliable sealing structure according to any one of claims 1 to 3, characterized in that: The guide assembly (6) is provided with an oil seal installation groove (63), and the oil seal assembly (7) is installed in the oil seal installation groove (63).

6. A shock absorber, characterized in that: The shock absorber includes the reliable sealing structure described in any one of claims 1-5.

7. The shock absorber according to claim 6, characterized in that: A floating piston (9) is arranged in the liquid storage cylinder (1).

8. The shock absorber according to claim 7, characterized in that: The shock absorber also includes a solenoid valve assembly (3).

9. The shock absorber according to any one of claims 6 to 8, characterized in that: The shock absorber further comprises a loading portion (4).

10. A vehicle, characterized in that: The vehicle comprises the shock absorber according to any one of claims 6 to 9.

Images