CN2202808Y - 打气筒限压阀 - Google Patents

打气筒限压阀 Download PDF

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Publication number
CN2202808Y
CN2202808Y CN 93234446 CN93234446U CN2202808Y CN 2202808 Y CN2202808 Y CN 2202808Y CN 93234446 CN93234446 CN 93234446 CN 93234446 U CN93234446 U CN 93234446U CN 2202808 Y CN2202808 Y CN 2202808Y
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pressure
limit valve
steel ball
pump
inflator
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CN 93234446
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彭忠贤
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Individual
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Abstract

在打气筒上加装一个限压阀,使之能方便地给轮 胎充入适量的气体。上述限压阀是通过一个弹簧压 住一个堵在泄气孔上的钢球来控制气筒内气压。这 样打气时就不用担心轮胎内气压会偏高或偏低,以致 使轮胎爆裂或疲软。

Description

本实用新型涉及打气筒上的限压装置,更具体地说是涉及加装在打气筒上的限压阀。
现有的打气筒上没有气压表,也没有限压装置,给轮胎打气的多少,是用手捏一下轮胎来凭感觉粗略估计,这样难免使轮胎内气压过高或过低;过高了会降低车轮的防震性能,甚至使轮胎爆裂;过低会增加车轮的滚动阻力,轮胎在疲软状态下工作也会缩短使用寿命,而且,打气时如果打几下,就停下来用手捏一下经常与地面接触的车胎,既麻烦,又不卫生。
本实用新型的目的在于提供一种打气筒限压阀,它能使打气筒方便地给轮胎充入适量的气体,不必用手捏轮胎来粗略估计,同时有效地避免因充气过或过少而影响轮胎的防震性能和使用寿命。
该限压阀通过一个一端有螺栓一端有螺孔的上下连通的导气管道加装于打气筒上的导气胶管与打气筒主体的连接处,这样对原气筒的各部件不需任何改装,把限压阀直接加装上去即可。当轮胎内充气达到所需气压时,限压阀自动打开,使气筒内的压缩气体泄放到大气中,而不能充入轮胎内,从而达到限压的目的,本实用新型是这样实现的:在所述的导气管道一侧开有一个泄气孔,通过一个弹簧压住一个堵在所述一泄气孔上的钢球,再用一个调节螺丝来调节弹簧的压力,这样使得气筒内压缩气体的预定压强在钢球上产生的压力与弹簧对钢球产生的压力达到平衡,以所述钢球为界,在与所述泄气孔相对的另一侧有一个与大气相通的排气孔,它可以开口于所述的调节螺丝中,也可以开口于调节螺丝所处的螺孔附近。在所述的排气孔中装有一片类似口琴中用来发声的金属膜片,当有气流通过排孔时,金属膜片发出声音,告知气已充满。
现有打气筒通过加装限压阀后,就能弥补它的不足,方便地给轮胎充入适量的气体,而不用担心充得过多或过少带来不良后果。
下面将叙述本实用新型的具体实例,叙述中参阅的附图有下列两幅:
图1、表示本实用新型一种形状的全剖视图;
图2、表示本实用新型在打气筒上的位置。
如图1所示,限压阀10内气流方向从右向左,在气流通道中有一个泄气孔1,钢球2堵在泄气孔上,压缩弹簧3压在钢球上,调节弹簧对钢球的压力的是调节螺丝4,调节螺丝中有一个排气孔5,参说图2限压阀在打气筒上的情况把现有的打气筒上的导气管8从打气筒底坐9上拧下来,再把限压阀上的螺栓6旋入打气筒中,最后把导气管旋入限压阀上的螺孔7中。

Claims (3)

1、一种用于限制打气筒内气压的限压阀,其特征在于它有一根侧壁上开有泄气孔的导气管道,一个堵在所述泄气孔上的钢球,一个压在所述钢球上的压缩弹簧,一个调节所述压缩弹簧压力的调节螺丝和一个以所述钢球为界在与所述泄气孔相对一侧的与大气相通的排气孔。
2、根据权利要求1所述的限压阀,其特征是所述的排气孔开口于所述的调节螺丝中,在所述的排气孔中装有一片用来感受气流冲击而发声的金属膜片。
3、根据权利要求1或2所述的限压阀,其特征是所述的导气管道一端是螺栓,另一端是螺孔,通过所述的螺栓和螺孔将限压阀加装于打气筒的导气管与打气筒主体之间。
CN 93234446 1993-08-02 1993-08-02 打气筒限压阀 Expired - Fee Related CN2202808Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 93234446 CN2202808Y (zh) 1993-08-02 1993-08-02 打气筒限压阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 93234446 CN2202808Y (zh) 1993-08-02 1993-08-02 打气筒限压阀

Publications (1)

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CN2202808Y true CN2202808Y (zh) 1995-07-05

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CN 93234446 Expired - Fee Related CN2202808Y (zh) 1993-08-02 1993-08-02 打气筒限压阀

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111394985A (zh) * 2020-03-25 2020-07-10 长园装备制造有限公司 一种裁剪机机头用刀盘组件及搭载其的裁剪机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111394985A (zh) * 2020-03-25 2020-07-10 长园装备制造有限公司 一种裁剪机机头用刀盘组件及搭载其的裁剪机

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