The invention discloses a pressure relief valve, which comprises a valve body and a floating ball arranged in the valve body. One end of the valve body is the air inlet end, the cross section shape of the air inlet end is isosceles trapezoid, the inner wall of the air inlet end is provided with a rubber pad, the inner part of the valve body is fixed with a metal mesh, which is located under the floating ball. Connecting the pressure relief valve to the water pipe can realize the connection between the water pipe and the outside atmosphere, balance the air pressure inside and outside the water pipe, and prevent the siphon effect. The pressure relief valve can prevent the water pipe from overflowing. If the pressure in the water pipe suddenly increases, the floating ball moves up under the pressure and is blocked at the air inlet end, so as to prevent the water in the water pipe from overflowing. When the floating ball is blocked at the air inlet end, the rubber pad on the inner wall of the air inlet end can closely conflict with the floating ball to improve the sealing performance, so as to better prevent water pipe overflow. The metal net is located under the floating ball, which can prevent the floating ball from sinking into the water pipe, so as to ensure that the pressure relief valve plays a stable and effective role.
【技术实现步骤摘要】
一种泄压阀
本专利技术涉及泄压阀
,具体来说涉及一种应用于水管的泄压阀。
技术介绍
泄压阀是当设备或管道内压力超过泄压阀设定压力时,即自动开启泄压,保证设备和管道内介质压力在设定压力之下,保护设备和管道,防止发生意外,是流体输送系统中的控制部件,具有截止、调节、导流、防止逆流、稳压、分流或溢流泄压等功能,涉及诸多领域,在日常生活和工作中得到越来越广泛的应用。传统的泄压阀结构较简单,泄压口不对称,流体推动浮球会产生侧向力,在侧向力的作用下,浮球底部会卡滞在泄压口或者卡在水管与泄压阀连接的开口处。
技术实现思路
本专利技术的目的在于提供一种泄压阀,以解决现有泄压阀的浮球易卡在水管与泄压阀连接的开口处的缺陷。为此,本专利技术提供了一种泄压阀,包括阀体和设置于所述阀体内的浮球,所述阀体的一端为进气端,所述进气端的截面形状为等腰梯形,所述进气端的内壁上设有胶垫;所述阀体内部固定有金属网,所述金属网位于所述浮球下方。优选的,所述金属网的边缘焊接在所述阀体内壁上。优选的,所述阀体的另一端外壁上设有螺纹。与现有技术相比,本专利技术的优点和积极效果是:本专利技术提供了一种泄压阀,包括阀体和设置于所述阀体内的浮球,所述阀体的一端为进气端,所述进气端的截面形状为等腰梯形,所述进气端的内壁上设有胶垫;所述阀体内部固定有金属网,所述金属网位于所述浮球下方。将本专利技术的泄压阀连接到水管上,可以实现水管与外界大气的连通,使得水管内外气压平衡,从而可以预防虹吸效应的发生。而且,本专利技术的 ...
【技术保护点】
1.一种泄压阀,包括阀体和设置于所述阀体内的浮球,其特征在于,/n所述阀体的一端为进气端,/n所述进气端的截面形状为等腰梯形,所述进气端的内壁上设有胶垫;/n所述阀体内部固定有金属网,所述金属网位于所述浮球下方。/n
【技术特征摘要】
1.一种泄压阀,包括阀体和设置于所述阀体内的浮球,其特征在于,
所述阀体的一端为进气端,
所述进气端的截面形状为等腰梯形,所述进气端的内壁上设有胶垫;
所述阀体内部固定有金属网,所述金属网位于所述浮球下...
【专利技术属性】
技术研发人员:李大臣,刘丽君,盛文刚,麻哲,张明顺,王爱斐,战韦鹏,齐凯,张本超,闵玉强,
申请(专利权)人:中车四方车辆有限公司,
类型:发明
国别省市:山东;37
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