Sealing structure for shock absorber and shock absorber including same
A sealing structure and shock absorber technology, which is applied in the direction of shock absorber, shock absorber, spring/shock absorber, etc., can solve the problems of dust sealing lip structure damage, contact area reduction, connecting rod and oil seal oil leakage, etc. Achieve the effect of preventing dust and debris, improving the effect of dust prevention and improving the working environment
Active Publication Date: 2017-11-28
天纳克(常州)减振系统有限公司
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Problems solved by technology
Among them, the sealing structure of the shock absorber has only one dust-proof lip structure, that is, the dust-seal lip of the oil seal, when it is eroded by external dust and debris, it is easy to cause damage to the structure of the dust-seal lip, thus losing the protection of the shock absorber. dust effect
In addition, when the shock absorber is subjected to high lateral force at low temperature, the best sealing effect cannot be ensured because the contact area between the oil seal and the connecting rod is significantly reduced
[0005] The top cover assembly process usually adopts a press-fitting process. During the press-fitting process, in order to avoid cracking of the top cover due to excessive pressure in the local area inside the top cover caused by air compression, a vent is usually designed in the top cover structure. During the press-fitting process, the air between the top cover and the liquid storage cylinder will flow out through the vent between the top cover and the outer wall of the liquid storage cylinder. This design can ensure the circulation of the internal air, but in terms of dust-proof effect, sundries and Dust can easily flow into the upper area of the top cover from the bottom air vent, block the air vent, and even affect the cleanliness of the oil seal, which causes oil leakage at the junction of the connecting rod and the oil seal, and causes the connecting rod of the shock absorber to wear
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[0029] The following description is merely exemplary in nature and is not intended to limit the invention, application and uses. It should be understood that throughout the several drawings, corresponding reference numerals indicate like or corresponding parts and features.
[0030] It should be noted that this embodiment is only used to illustrate the present invention and not to limit the technical solution described in the present invention, for example, for "front", "rear", "left", "right", "upper", "lower" The definition of isodirectionality, although this specification has described the present invention in detail with reference to the above-mentioned embodiments, those of ordinary skill in the art should understand that those skilled in the art can still make modifications or equivalent replacements to the present invention, All technical solutions and improvements thereof that do not deviate from the spirit and scope of the present invention shall be covered by the cla...
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Disclosed are a sealing structure for a vibration damper and the vibration damper with the sealing structure. The sealing structure comprises a liquid storing barrel, a top cover, a connecting rod, an oil seal and a sealing part, wherein the liquid storing barrel is provided with an inner cavity; the top cover is arranged at one end of the liquid storing barrel and provided with an opening formed in the approximately central position; at least part of the connecting rod is arranged in the liquid storing barrel and penetrates through the opening in the top cover; the oil seal seals the liquid storing barrel, and the connecting rod penetrates through the oil seal; an airtight protective cavity is defined by the liquid storing barrel, the connecting rod and the sealing part, the connecting rod penetrates through the sealing part, and the oil seal is located in the protective cavity, so that dust and other things are prevented from entering the oil seal.
Description
technical field [0001] The present invention relates to a sealing structure for a shock absorber and a shock absorber including the same, and more particularly to a sealing structure for a shock absorber in a vehicle suspension and a shock absorber including the same. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] In a vehicle, generally, vibration or impact force received by the vehicle during operation is absorbed by a suspension including a shock absorber. The top cover of the liquid storage tank is an important sealing part and load-bearing part in the shock absorber. On the one hand, through its cooperation with the shock absorber liquid storage tank and the dust cover, excessive dust and debris can be prevented from entering the inside of the top cover, avoiding Reduced oil seal cleanliness leads to oil leakage from the shock absorber; on th...
Claims
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IPC IPC(8): F16F9/36
Inventor 宋振江王伟李娜杨志峰
Owner 天纳克(常州)减振系统有限公司