The invention discloses a valve core of an explosion-proof tire. The valve core comprises a core rod, a pressure relief sealing gasket, a pressure relief spring and a bracket, wherein the pressure relief sealing gasket is mounted on the core rod in an interference fit manner and can slide along the core rod under the action of external force; the bracket is arranged on the core rod and located below the pressure relief sealing gasket; the pressure relief spring is mounted on the core rod and applies force to a pressure relief sealing piece to enable the pressure relief sealing gasket to be inclose contact with the bracket. Automatic air leakage can be realized when the tire pressure exceeds the upper limit, the valve core can be automatically closed when the tire pressure returns to normal pressure, normal operation of the tire is guaranteed, tire burst is prevented, and the safety is improved; and the sealing effect of the valve core can be improved, and the sealing gasket is effectively prevented from falling off.
本发明公开了一种防爆轮胎气门芯,包括芯杆、泄压密封垫、泄压弹簧以及托座,泄压密封垫过盈配合安装在芯杆上并能够在外力作用下沿芯杆滑移,所述托座设置在芯杆上且位于泄压密封垫的下方,所述泄压弹簧安装在芯杆上,所述泄压弹簧对泄压密封件施加力使泄压密封垫与托座紧密接触;本发明可以实现轮胎胎压超过上限时自动泄气,恢复到正常压力自动关闭,保证轮胎的正常运行,防止轮胎爆胎现象的发生,提高安全性;可以提高气门芯的密封效果,且有效避免密封垫脱落。
Valve core of explosion-proof tire
一种防爆轮胎气门芯
2021-02-02
Patent
Electronic Resource
Chinese
EXPLOSION-PROOF TIRE HUB, EXPLOSION-PROOF TIRE, AND MOVING TOOL
European Patent Office | 2021
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