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CN-224214626-U - Dustproof cover cap for shock absorber for protecting oil seal lip

CN224214626UCN 224214626 UCN224214626 UCN 224214626UCN-224214626-U

Abstract

The utility model relates to the technical field of shock absorbers for vehicles, in particular to a dust cover for a shock absorber for protecting an oil seal lip, which comprises a piston rod, an oil storage cylinder and a dust cover, wherein the oil storage cylinder is nested at the outer side of the piston rod, and the dust cover is nested at the outer side of the oil storage cylinder; when the shock absorber is wholly compressed to the limit state, the protruding part protruding to the outer side of the dust-proof cover cap can form a certain safety distance between the oil storage cylinder and the dust-proof cover cap, so that the mutual contact of the dust-proof cover cap and the oil seal lip at the end part of the oil storage cylinder can be avoided, the phenomenon that the oil seal lip loses the sealing effect on the working cavity and the oil storage cavity due to the extrusion deformation of the dust-proof cover cap is prevented, the dust-proof cover cap in the shock absorber is identical to the dust-proof cover cap processing technology on the existing shock absorber in the processing technology, stamping parts are adopted, the cost is not increased in the processing process, and the assembly procedure of the shock absorber production process is effectively reduced, and the manufacturing cost is effectively saved.

Inventors

  • CAO RENHUI

Assignees

  • 隆昌山川机械有限责任公司

Dates

Publication Date
20260508
Application Date
20250609

Claims (6)

  1. 1. The utility model provides a protection is dust cover for shock absorber of oil blanket lip, includes piston rod (1), oil storage jar (2) and dust cover (3), its characterized in that, oil storage jar (2) nest is in the outside of piston rod (1), dust cover (3) nest are in the outside of oil storage jar (2), the one end fixedly connected with dust cover (4) of dust cover (3), the one end of piston rod (1) with the inner wall fixed connection of dust cover (4), oil storage jar (2) constitute bilayer structure by the oil storage chamber (6) that are located inboard working chamber (5) and are located the outside, the tip of oil storage jar (2) is provided with oil blanket lip (7), be provided with protruding bellying (8) to the outside on dust cover (4).
  2. 2. The dust cover for a shock absorber protecting an oil seal lip according to claim 1, wherein an oil seal (9) is fixed on the inner side of the end part of the oil storage cylinder (2), the oil seal lip (7) is a part of the oil seal (9), the oil seal (9) is tightly pressed by the oil storage cylinder (2) through a flanging seal, and the sealing lip (7) is higher than the plane of the oil storage cylinder (2) after sealing.
  3. 3. The dust cover for the shock absorber for protecting the oil seal lip according to claim 1, wherein a guide seat (10) is further arranged at the end part of the oil storage cylinder (2), and the guide seat (10) is matched with the outer wall of the piston rod (1).
  4. 4. The dust cap for a damper protecting an oil seal lip according to claim 1, wherein an end edge of the oil reservoir (2) and an inner wall edge of the dust cap (4) are both rounded structures.
  5. 5. The dust cover for the shock absorber for protecting the oil seal lip according to claim 1, wherein the two sides of the shock absorber are provided with hanging rings (11), and the hanging rings (11) are fixedly connected to the end positions of the dust cover (4) and the oil storage cylinder (2) respectively.
  6. 6. The dust cover for a damper for protecting an oil seal lip according to claim 1, wherein the dust cover (3) and the dust cover (4) are made of metal materials, and the outer surfaces of the dust cover (3) and the dust cover (4) are provided with an electroplating corrosion-resistant layer.

Description

Dustproof cover cap for shock absorber for protecting oil seal lip Technical Field The utility model relates to the technical field of shock absorbers for vehicles, in particular to a dust-proof cover cap for a shock absorber for protecting an oil seal lip. Background The shock absorber for the double-suspension-ring vehicle is a component for an automobile suspension system, and has the main effects of inhibiting vibration and impact from a road surface when a spring bounces after absorbing the vibration, thereby improving the running smoothness of the automobile. The conventional shock absorber for the vehicle with the double-suspension-ring structure is shown in fig. 1, and comprises a piston rod and an oil storage cylinder which can slide relatively, a dust cover is designed for protecting the piston rod from erosion of silt and rainwater, a part for fixing the dust cover is commonly called as a dust cover, the dust cover is required to be fixed, the dust cover is required to be pressed against an oil seal lip by the dust cover when the shock absorber is compressed to the shortest limit stroke, an oil seal guard plate is arranged between the oil seal lip and the end part of the oil storage cylinder or a top cover is additionally arranged for protecting the oil seal lip when the shock absorber is sealed, so that the oil leakage failure of the shock absorber is prevented due to the pressing of the oil seal lip, and the processing and welding of the oil seal guard plate or the top cover are increased, so that the special dust cover is required to be designed for achieving the purposes of protecting the oil seal lip and saving the cost. Disclosure of utility model The utility model provides a dustproof cover cap for a shock absorber for protecting an oil seal lip, which solves the technical problems that in the prior art, an oil seal guard plate is arranged between the oil seal lip and the end part of an oil storage cylinder or a top cover is added to protect the oil seal lip when the shock absorber is sealed, and the parts and the process cost for manufacturing the shock absorber are increased. In view of the above problems, the technical scheme provided by the utility model is as follows: The utility model provides a protection is dust cover for shock absorber of oil blanket lip, includes piston rod, oil storage jar and dust cover, the oil storage jar nestification is in the outside of piston rod, the dust cover nestification is in the outside of oil storage jar, the one end fixedly connected with dust cover of dust cover, the one end of piston rod with the inner wall fixed connection of dust cover, the oil storage jar comprises bilayer structure by the oil storage chamber that is located inboard and the oil storage chamber that is located the outside, the tip of oil storage jar is provided with the oil blanket lip, be provided with outside convex bellying on the dust cover lid. Further, an oil seal is fixed on the inner side of the end part of the oil storage cylinder, the lip of the oil seal is a part of the oil seal, the oil storage cylinder tightly presses the oil seal through flanging sealing, and the lip of the oil seal is higher than the plane of the oil storage cylinder after sealing. Furthermore, a guide seat is further arranged at the end part of the oil storage cylinder, and the guide seat is matched with the outer wall of the piston rod. Furthermore, the end edge of the oil storage cylinder and the inner wall edge of the dust cover cap are of round corner structures. Further, rings are arranged on two sides of the shock absorber, and are fixedly connected to the end positions of the dustproof cover cap and the oil storage cylinder respectively. Further, the dust cover and the dust cover are made of metal, and an electroplating anti-corrosion layer is arranged on the outer surfaces of the dust cover and the dust cover. Compared with the prior art, the shock absorber has the beneficial effects that in the use process, when the shock absorber is wholly compressed to the limit state, the protruding part protruding to the outer side of the dust-proof cover can form a certain safety distance between the oil storage cylinder and the dust-proof cover, so that the dust-proof cover and the oil seal lip at the end part of the oil storage cylinder can be prevented from being contacted with each other, the oil seal lip is prevented from being extruded and deformed by the dust-proof cover to cause losing the sealing effect on the working cavity and the oil storage cavity, the dust-proof cover in the shock absorber is the same as the dust-proof cover on the existing shock absorber in the processing process, the cost is not increased in the processing process, and the assembly procedure of the shock absorber in the production process is effectively reduced, so that the manufacturing cost is effectively saved. Drawings The accompanying drawings are included to provide a further understanding of the application