CN2517936Y - 清洗机安全阀 - Google Patents

清洗机安全阀 Download PDF

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Publication number
CN2517936Y
CN2517936Y CN 01274135 CN01274135U CN2517936Y CN 2517936 Y CN2517936 Y CN 2517936Y CN 01274135 CN01274135 CN 01274135 CN 01274135 U CN01274135 U CN 01274135U CN 2517936 Y CN2517936 Y CN 2517936Y
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valve
unloading
water
high pressure
hole
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CN 01274135
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陈吉明
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Abstract

清洗机安全阀,有清洗机泵头,泵头中制有出水口,在泵头内又制有卸荷阀室,卸荷阀室中安装阀座,阀座内有阀芯,阀芯有相配合的弹簧,弹簧与阀帽相配合,在阀座中制有卸荷孔和回水孔,卸荷孔通高压水腔。在清洗机喷枪打开时,高压水从高压进水口到出水口,再经喷枪喷出,不会使高压造成损失;但当喷枪关闭后,压力超过工作压力时,弹簧受压缩,卸荷阀芯动作,高压水经卸荷孔至卸荷回水孔进行卸荷,压力迅速下降,保护了阀门和泵腔,免受喷管反冲水的损坏。

Description

清洗机安全阀
                         技术领域
本实用新型涉及阀门,主要适用于清洗机或电动喷雾器等一类产品配套的卸荷阀门。
                         背景技术
清洗机等一类产品,在使用时经常要突然停止喷水,但作为送水动力的电动泵又不利于频繁开关,因此在喷枪突然关闭的情况下,水会从喷管反冲到阀门和泵腔,容易造成设备损坏。
                         发明内容
本实用新型为了克服已有技术的缺陷,提供一种清洗机的安全阀。其所述清洗机安全阀的技术方案是:清洗机泵头,泵头中制有出水口,其特征在于泵头内制有卸荷阀室,卸荷阀室中安装阀座,阀座内有阀芯,阀芯有相配合的弹簧,弹簧与阀帽相配合,在阀座中制有卸荷孔和回水孔,卸荷孔通高压水腔。本安全阀当喷水枪关闭后,出水口停止出水,高压水腔压力增大,顶开卸荷孔阀芯,弹簧受压缩,高压水从进水口进入后经卸荷孔和回水孔到泵进水管,使泵内水循环而卸荷。
                        附图说明
图1是本实用新型清洗机安全阀结构示意图。
1、泵头;2、卸荷阀芯;3、弹簧;4、卸荷阀帽;5、回水孔;6、阀座;7、卸荷孔;8、高压进水口;9、出水口;10、高压水腔。
                     具体实施方式
本实用新型涉及清洗机的安全阀,安全阀制在泵头1内,与泵头的出水口9和高压进水口8的高压水腔10相通。在卸荷阀室中安装阀座6,阀座内安有卸荷阀芯2,阀芯2与弹簧3相配合,弹簧3的另一头顶在阀帽4上,在阀座6中制有卸荷孔7和回水孔5,卸荷孔5通高压水腔10。在清洗机喷枪打开正常冲洗时,卸荷阀芯2在弹簧3力的作用下与阀座6中的卸荷孔7密封,从泵腔来的水经高压进水口8到出水口9,再从出水口连接水管从喷枪喷出,不会使高压水从卸荷孔7排出,此时不会使高压造成损失现象;而当喷枪关闭后,压力超过工作压力(弹簧力)时,弹簧3受压缩,卸荷阀芯2动作,高压水经卸荷孔7至卸荷阀芯小孔到卸荷回水孔5进行卸荷,压力迅速下降,但高压区保持一定的压力,回水孔5出去的水回到泵低压进水口,使泵内之水循环卸荷。

Claims (1)

1、清洗机安全阀,有清洗机泵头,泵头中制有出水口,其特征在于泵头内制有卸荷阀室,卸荷阀室中安装阀座(6),阀座内有阀芯(2),阀芯有相配合的弹簧(3),弹簧与阀帽(4)相配合,在阀座(6)中制有卸荷孔(7)和回水孔(5),卸荷孔通高压水腔(10)。
CN 01274135 2001-12-09 2001-12-09 清洗机安全阀 Expired - Lifetime CN2517936Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01274135 CN2517936Y (zh) 2001-12-09 2001-12-09 清洗机安全阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01274135 CN2517936Y (zh) 2001-12-09 2001-12-09 清洗机安全阀

Publications (1)

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CN2517936Y true CN2517936Y (zh) 2002-10-23

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Family Applications (1)

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CN 01274135 Expired - Lifetime CN2517936Y (zh) 2001-12-09 2001-12-09 清洗机安全阀

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CN (1) CN2517936Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407207A (zh) * 2011-08-26 2012-04-11 宁波李氏实业有限公司 一种喷枪压力保护机构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102407207A (zh) * 2011-08-26 2012-04-11 宁波李氏实业有限公司 一种喷枪压力保护机构

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Expiration termination date: 20111209

Granted publication date: 20021023