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Automatic spraying valve

A spray valve and automatic technology, which is applied in safety devices, mining equipment, earthwork drilling and mining, etc., can solve the problems of spray water and hydraulic emulsion leakage, leaking, leakage, and liquid leakage, so that it is not easy to escape, drip, leakage, and liquid leakage. Good sealing effect

Inactive Publication Date: 2011-10-19
李慧岭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the flaws in the structural design, the sealing ring will be cut to varying degrees during the movement of the valve core, causing spray water and hydraulic emulsion to escape, leak, leak and flow

Method used

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Embodiment Construction

[0007] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but does not constitute any limitation to the present invention. figure 1 As shown, the present invention includes a valve body 1 and a valve core. The center of the valve body 1 is provided with a conventional valve hole, and the two ends of the valve hole are respectively screwed with a joint seat 2 and a joint seat 2 4. The valve body 1 The side is screwed with joint seat three 3, and this joint seat three 3 communicates with the valve hole. The valve hole is a stepped hole, and the back ring 9 is packed into the bottom of the hole with a larger diameter in the stepped hole, then the sealing ring-5 is packed into, and finally screwed into the joint seat-2. The purpose of setting the retaining ring 9 is to position the sealing ring one 5 and the valve stem 8, improve the strength of the sealing ring one 5 and apply a force to the spring 7 at t...

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PUM

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Abstract

The invention discloses an automatic spraying valve which is not easy to cause leaking and liquid mixing phenomena, and comprises a valve body and a valve core; two ends of a valve hole are respectively screwed with a joint seat I and a joint seat II, and a joint seat III is communicated with the valve hole; a ring washer is arranged at the bottom of a hole with larger diameter in stepped holes, and a sealing ring I is arranged between the ring washer and the joint seat I; the diameter of the middle section of a valve rod is large than the diameters of the front section and the rear section of the valve rod; the rear section of the valve rod penetrates through in sequence and is in sliding matching with the ring washer, the sealing ring Iand the joint seat I; the front section of the valve rod is provided with a spring; the inner end of the joint seat II is provided with a sealing ring II; the diameter of the front section of the valve rod is larger than the inner diameter of the sealing ring II; and the front end surface of the valve rod is directly applied on the sealing ring II so that the sealing ring II bears the pressing action, and the sealing I wraps the rear section of the valve rod all the time according to the elasticity, so that the sealing effect is good.

Description

technical field [0001] The present invention relates to a valve. Background technique [0002] Coal dust will fall from the top of the hydraulic support in the fully mechanized coal mining face when it moves. In order to reduce the resulting coal dust, automatic spraying devices are generally installed in all mines in order to achieve the purpose of dust reduction. The device is mainly composed of automatic spray valve, nozzle and pipeline. In order to realize the automatic water spraying function, the closing and opening actions of the spray valve are automatically activated by using the lifting state of the hydraulic support. The specific solution is to use the oil supply conversion between the upper and lower chambers of the oil cylinder when the hydraulic support is lifted, and to realize the on-off of the waterway by hydraulically pushing the spool of the spray valve to move. However, due to defects in the structural design, the sealing ring will be cut to varying deg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F5/04
Inventor 李慧岭
Owner 李慧岭
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