CN2046575U - 力车胎气门芯 - Google Patents

力车胎气门芯 Download PDF

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Publication number
CN2046575U
CN2046575U CN 89201200 CN89201200U CN2046575U CN 2046575 U CN2046575 U CN 2046575U CN 89201200 CN89201200 CN 89201200 CN 89201200 U CN89201200 U CN 89201200U CN 2046575 U CN2046575 U CN 2046575U
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core
core body
tyre
valve
spring
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CN 89201200
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王林
王宝胜
韩发瑞
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GONGZHULING VALVE INSIDE FACTORY
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GONGZHULING VALVE INSIDE FACTORY
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Priority to CN 89201200 priority Critical patent/CN2046575U/zh
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Abstract

力车胎气门芯,是由中间呈孔状的芯体,孔中装有芯杆,芯杆上套有限位垫圈、弹簧、芯座,芯座上端面凹状孔中装有密封垫,密封垫与芯体下端面形成气门,当充气时,压缩气体推动密封垫及芯杆下移使气体进入胎中;停止充气时,在弹簧的推动下,气门封闭,这种气门芯有性能可靠,尤其适合寒冷气候条件下的使用。

Description

属气阀类。
现有的自行车、三轮车等力车胎气门芯,是在阀体下部的锥面上套有一个弹性胶管,作为单向气阀。这种气门芯,因胶管易老化,尤其是在寒冷气候条件下胶管的弹性明显减弱,经常出现跑气及失效的现象。
本实用新型的目的是:设计出性能可靠、耐严寒气候的气门芯。
本实用新型的技术方案是:将气门芯的芯体中间加工成通孔,在通孔中装置一个芯杆,芯杆上套有限位垫圈、弹簧,下端部套有芯座,芯座上部凹形孔中装有密封垫,在弹簧的作用下,密封垫将芯体下端口封闭。
图1是本实用新型的结构示意图,图中10是防尘帽;9是卡圈,它可以与上芯体8加工成一体,也可胶接在上芯体的外缘上;下芯体3与上芯体8胶接为一体,上芯体8和下芯体3合称为芯体,在芯体中部的内孔壁上有一个凹形的环槽,在芯体下部外部有一个凹形环槽,环槽中套有密封圈4,在气门芯帽的压力下,密封圈4与车胎的带咀配合封闭气体。在芯体内装有一个芯杆6,上面套有限位垫圈7,它封在芯体内孔壁的凹形环槽中,在芯杆6上端的冲出凸起阻挡下,垫圈7不能从芯杆6上端脱出。垫圈7的下面,芯杆6上套有弹簧5,弹簧5的下端面受芯体孔中的弹簧座台支承,在芯体的下端,芯杆6上套有芯座1,芯座1的上端有凹状的密封垫孔,孔中装有环形的密封垫2,芯杆6的下端冲有突起,使芯座1不能脱出。
当向胎中充气时,气压克服弹簧5的弹力,将密封垫2向下推开,气体经芯体下端面进入胎中。停止充气时,芯杆6在弹簧5的推动上,带动芯杆6及芯座1一起向上运动,密封垫2将芯体下端口封住。图中12是力车胎气门芯座,11是压帽。

Claims (1)

1、一种力车胎气门芯,是由芯体、防尘帽构成的,其特征是:
a芯体是由上芯体和下芯体构成的,芯体中部的内孔壁上有一个凹形的环槽,在芯体下部外面有一个可套入密封圈的凹形环槽,芯体下部的内孔中有弹簧座台;
b在芯体中装有一个芯杆,芯杆上套有限位垫圈、弹簧、芯座;
c芯座上端凹形孔中装有与芯体下端口相接触的密封垫。
CN 89201200 1989-01-25 1989-01-25 力车胎气门芯 Withdrawn CN2046575U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89201200 CN2046575U (zh) 1989-01-25 1989-01-25 力车胎气门芯

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89201200 CN2046575U (zh) 1989-01-25 1989-01-25 力车胎气门芯

Publications (1)

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CN2046575U true CN2046575U (zh) 1989-10-25

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CN 89201200 Withdrawn CN2046575U (zh) 1989-01-25 1989-01-25 力车胎气门芯

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CN (1) CN2046575U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100418797C (zh) * 2003-08-08 2008-09-17 太平洋工业株式会社 轮胎阀门

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100418797C (zh) * 2003-08-08 2008-09-17 太平洋工业株式会社 轮胎阀门

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