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Bottle valve for air respirator

A technology for gas cylinder valves and respirators, which is applied in the direction of respiratory protection devices, lifting valves, safety valves, etc., and can solve problems such as increased carrying load, large fluctuations, and large volume

Inactive Publication Date: 2004-09-08
钮静江
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the decompression valve in this structure only relies on the balance of the spring force acting on the piston to control the overflow and achieve the purpose of decompression, but there are deficiencies such as unstable air supply and air pressure, and large fluctuations. It cannot well meet the requirements of the human body for balanced breathing; on the other hand, because the bottle head switch valve and the pressure reducing valve of this structure adopt the traditional split structure, both of them have their own independent valve body, piston, spring and The sealing device has a complex structure and a large volume, which not only increases the carrying load, but also directly affects the user's operation and use

Method used

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  • Bottle valve for air respirator
  • Bottle valve for air respirator
  • Bottle valve for air respirator

Examples

Experimental program
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Embodiment Construction

[0009] figure 1 , figure 2 As shown in the air respirator gas cylinder valve, the valve body 1 is connected to the bottle mouth of the high-pressure gas cylinder through threads, and a high-pressure air hole 12 runs through the center of the valve body 1. Correspondingly, the valve body 1 is also provided with a reducing The air pressure hole 13 is fixedly sleeved with the piston sleeve 8 on the top of the valve body 1 . The handle 2 is connected to the outer side of the piston sleeve 8 through an O-shaped sealing sleeve, and is screwed with the piston sleeve through an adjustment thread, so as to realize the sealing adjustment of the handle position. Piston 5 is housed in piston sleeve 8, and this piston 5 upper section is garden platform shape, and middle and lower sections are the garden column shape that diameter differs respectively, and the garden column diameter of lower section is less than middle section diameter; The side of the column leads to the top of the pist...

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Abstract

The bottle valve for air respirator includes valve body and handle. The valve body is connected to the handle via piston sleeve, and the piston inside the piston sleeve has its lower end corresponding to the high pressure air hole and decompression air hole in position. The piston core has ventilation hole, the movable bolt is inserted between the push rod and the handle, and some spring is set between the valve body and the piston. The bottle valve has light weight, small volume, convenient carrying about and simple operation, as well as stable decompression effect, homogeneous air flow and comfortable use.

Description

Technical field: [0001] The invention relates to an air respirator for personal protection, in particular to the improvement of the cylinder valve of the air respirator. Background technique: [0002] The air respirator is a personal respiratory protection device for personnel working on the scene of fire, dust, toxic and harmful gases, etc. After opening the on-off valve, the high-pressure gas is decompressed by the pressure-relief valve and supplied to the user through the mask. On the one hand, the decompression valve in this structure only relies on the balance of the spring force acting on the piston to control the overflow and achieve the purpose of decompression, but there are deficiencies such as unstable air supply and air pressure, and large fluctuations. It cannot well meet the requirements of the human body for balanced breathing; on the other hand, because the bottle head switch valve and the pressure reducing valve of this structure adopt the traditional split...

Claims

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Application Information

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IPC IPC(8): A62B9/02F16K1/00F16K17/04F16K17/16F17C13/04G05D16/06
Inventor 钮静江
Owner 钮静江
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