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A bottle head valve and its working method

A bottle head valve and valve body technology, used in respiratory protection devices, life-saving equipment, etc., can solve problems such as safety, hidden dangers, and user suffocation, and achieve the effect of easy operation and enhanced balance.

Active Publication Date: 2021-12-24
JIANGSU HUAYAN MARINE EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Only through the cooperation of the lock tongue and the spring, the handwheel locking caused by unintentional touch can be avoided. However, once the handwheel is locked due to misuse or unintentional touch, the bottle head valve cannot be reset, which will still cause the user Suffocation occurs inside the hood, which poses a safety hazard

Method used

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  • A bottle head valve and its working method
  • A bottle head valve and its working method
  • A bottle head valve and its working method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] like Figure 1-5 The bottle head valve of the present embodiment includes a valve body 9 and a locking apparatus, and the valve body 9 is provided with the valve body 9 opening and closing, a plum-shaped handwheel 1, and the lower end of the hand wheel 1 is provided in the lower end of the handwheel 1. The rotation is over, the positioning member 2 fixed to the top of the valve body 2, the lower side of the hand wheel 1 and the inner side of the positioning member 2 are provided with penetration annular groove 6, and the inner top wall of the annular groove 6 is inverted 11, hand There is also a ribbon on the side wall of the wheel 1; the locking device includes a movable return 4, the latch 3, and the spring 5, and the movable return 4 is provided in the annular groove 6, which is ringing The shape is provided with a guide groove, and the guide rail is disposed in the wall of the wall of the annular groove, so that the movable return 4 can only be displaced along the valve ...

Embodiment 2

[0027] On the basis of the first embodiment, the present embodiment exists, and the movable return 4 is arranged in a square, wherein the center is provided with a circular vias such that the movable return 4 can only be along the ring groove 6. The body is displaced to prevent the active stop 4 from rotating.

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Abstract

The invention relates to a bottle-head valve and its working method. The bottle-head valve includes a valve body and a locking device. The valve body is provided with a handwheel. The lower end of the handwheel is provided with a positioning part. The lower side of the handwheel is provided with an opening. The downward annular groove has inverted teeth on the inner top wall; the locking device includes a movable check piece, a latch and a spring that can move axially along the valve body. The movable check piece is arranged in the annular groove, and the movable check piece The outer wall of the return piece is provided with a through hole, and the spring is in a compressed state when the latch pin is passed through the through hole. The top surface of the movable non-return member is also provided with non-return teeth for meshing with the inverted teeth. After the hand wheel moves upward to the preset position, the latch is pulled out, the movable non-return member moves upward, and the non-return teeth mesh with the inverted teeth. The bottle head valve of the present invention utilizes the cooperation of the spring and the movable check member, and the inverted teeth and the check teeth engage with each other to prevent the bottle head valve from being closed due to the rotation of the handwheel, thereby avoiding the danger of suffocation.

Description

Technical field [0001] The present invention relates to the technical field of emergency respiratory devices, in particular a bottle head valve for emergency respiratory devices and its working methods. Background technique [0002] The emergency escape respiratory device is an escape equipment used in the fire. When using the user often because of tension, panic, it is easy to operate or unconsciously touch the obstacle shutdown, so that the emergency respiratory device cannot work properly. The chance of escape. [0003] China Patent No. CN201220322682.4, a bottle head valve having a locking device with a compact escape respiratory device, which has a bottle head valve having a locking device, including a valve body and a locking device, and the valve body is provided. There is a hand wheel for controlling the valve body opening and closing, the inner end of the handwheel having an axial extended projection; the locking device comprises: a compression cover, a latch and a sprin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62B9/02
Inventor 顾磊
Owner JIANGSU HUAYAN MARINE EQUIP