一种预强化气盾坝用支撑气囊
The multi-layered composite structure of the support airbag solves the air leakage problem caused by traditional bolt anchoring, achieving high sealing and creep resistance of the airbag and preventing backward displacement and failure of the airbag.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI HENGYANG ENG EQUIP CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-17
AI Technical Summary
The air leakage problem of the airbag support in the air shield dam caused by the traditional bolt anchoring method is mainly due to the decrease in anchoring force and the backward displacement of the airbag caused by the bolt installation damaging the continuity of the rubber and creep deformation.
The support airbag adopts a multi-layer composite structure, including an anchoring section formed by co-vulcanization of a metal reinforcing plate and a cord-reinforced rubber layer. The through-hole design and rubber sealing layer cover form a constant annular gap and a continuous force transmission path, which suppresses plastic deformation and crack propagation.
It significantly improves the sealing performance of the anchoring area, prevents air leakage, maintains stable bolt tightening force, reduces the risk of systemic air leakage, and enhances tear resistance.
Smart Images
Figure CN224514158U_ABST
Abstract
Claims
1. A pre-stressed air shield dam support air bag, characterized by, The support airbag comprises an integrally formed cavity section and an anchoring section, wherein the anchoring section adopts a multi-layer composite structure; the composite structure is formed by co-vulcanizing and solidifying alternating metal reinforcing plates and cord-reinforced rubber layers, and the number of layers is configured according to the design load-bearing parameters and is not less than two layers; the cavity section has a rubber matrix.
2. The pre-stressed supporting air bag for air dam according to claim 1, wherein The metal reinforcing plate is provided with an array of through holes, the distribution of which matches the design coordinates of the anchor bolts, and the diameter of the through holes is larger than the diameter of the corresponding bolts to form a constant annular gap.
3. The pre-stressed airbag for supporting an air shield according to claim 1, wherein The entire outer surface of the metal reinforcing plate, including the inner wall of the through hole, is completely covered by a rubber sealing layer. This rubber sealing layer has a uniform thickness and is seamlessly connected to the cord-reinforced rubber layer. The cord-reinforced rubber layer comprises a cured and bonded warp cord array and a rubber matrix. In the anchoring section section, the cord-reinforced rubber layer completely covers the outer contour of the adjacent rubber sealing layer, and its cord direction extends parallel to the anchoring plane. The cavity section maintains a continuous cord array, and the rubber matrix of the cavity section and the co-vulcanized interface of the anchoring section transition continuously.