CN2132052Y - 真空气路安全阀 - Google Patents

真空气路安全阀 Download PDF

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Publication number
CN2132052Y
CN2132052Y CN 92223467 CN92223467U CN2132052Y CN 2132052 Y CN2132052 Y CN 2132052Y CN 92223467 CN92223467 CN 92223467 CN 92223467 U CN92223467 U CN 92223467U CN 2132052 Y CN2132052 Y CN 2132052Y
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China
Prior art keywords
dung
safety valve
gas circuit
triplet
circuit safety
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Expired - Fee Related
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CN 92223467
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English (en)
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张兴
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Individual
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Individual
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Priority to CN 92223467 priority Critical patent/CN2132052Y/zh
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Abstract

一种真空气路安全阀,是由三通、阀杆、托座、复 位簧等组成,三通的另两端分别安装在吸粪车的气路 管道上,一端接粪缸,另一端接真空泵。由于吸粪车 上采用这种安全阀,使粪车在吸粪时遇有吸粪管堵塞 不会导致粪缸吸瘪,及使真空泵损坏,延长吸粪车的 使用寿命,减轻清洁工人的劳动强度,这种阀结构简 单、成本低。

Description

本实用新型涉及一种真空气路安全阀,特别是吸粪车上使用的真空气路安全阀。
现有技术中使用的真空吸粪车,均设有安全阀,在吸粪过程中,凭人眼观察井内吸粪情况,因井内杂物很多,当肉眼观察不到时,经常造成吸粪管堵塞,导致车上粪缸被吸瘪,机器损坏。
本实用新型的目的,是在真空吸粪车上增加安全阀。
为了实现上述目的,本实用新型为吸粪车设计了一种真空气路安全阀,将这种阀安装在粪缸外的气路上,控制吸粪过程中粪缸中的压力,当吸粪管被堵时,安全阀自动开始工作,这时外界空气通过安全阀进入真空泵,以使粪缸内无法形成负压而不再吸粪。当吸粪管正常工作时,安全阀关闭,整个气路回路封闭,在泵的作用下,粪通过吸粪管吸到粪缸中。
这种真空气路安全阀,结构简单,便于制作,由于这种安全阀的使用,为吸粪车延长了使用寿命,减轻了清洁工人的劳动强度,为国家节省开支,避免了不必要的损失。
下面结合实施例说明:
图中给出的是真空气路安全阀的剖面图,三通(10)两端,一端接吸粪缸管(12),另一端接真空泵管(11),中间端接托座(7)和阀杆(2)、压簧(5)控制阀杆的位移和复位,托座(7)上带有孔(6),其孔(6)与三通相通,(8)为密封垫,当粪缸工作时,阀杆(2)将托座(7)与三通(10)相通之孔(6)堵死,安全阀不工作,当吸粪管堵死,缸内负压增大,超过缸内的正常压力,压簧(5)开始工作,带动阀杆(2)位移,使外界空气通过托座(7)上的孔(6)进到三通(10)内,减少缸内负压,(1)为外罩,其上开有孔,保证空气进入,(3)为锁母,(4)为调整母,(9)为双丝接头。

Claims (2)

1、一种真空气路安全阀,其特征在于:三通的中间端接阀杆和带孔托座,阀杆上有复位簧,组成安全阀。
2、根据权利要求1所述的安全阀,其特征在于:三通的两端,一端接粪缸管,另一端接真空泵管。
CN 92223467 1992-06-06 1992-06-06 真空气路安全阀 Expired - Fee Related CN2132052Y (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 92223467 CN2132052Y (zh) 1992-06-06 1992-06-06 真空气路安全阀

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 92223467 CN2132052Y (zh) 1992-06-06 1992-06-06 真空气路安全阀

Publications (1)

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CN2132052Y true CN2132052Y (zh) 1993-05-05

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CN 92223467 Expired - Fee Related CN2132052Y (zh) 1992-06-06 1992-06-06 真空气路安全阀

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CN (1) CN2132052Y (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871317A (zh) * 2010-06-07 2010-10-27 三一重型装备有限公司 一种锚杆钻机

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101871317A (zh) * 2010-06-07 2010-10-27 三一重型装备有限公司 一种锚杆钻机

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