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Simple one-way breathing valve plate

A breathing valve, a simple technology, applied in safety valves, balance valves, valve devices, etc., can solve problems such as valve port adhesion, achieve the effect of overcoming valve port adhesion, achieving unidirectionality, and ensuring uniformity

Inactive Publication Date: 2019-05-21
BEIJING AEROSPACE CHANGFENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of one-way breathing valve for anesthesia machines to solve the problem of valve port adhesion in view of the problems existing in the current products

Method used

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Embodiment Construction

[0010] like figure 1 , figure 2 , image 3 As shown, a simple one-way breathing valve plate provided by the present invention includes a valve seat 1, the valve seat 1 is provided with a valve chamber 2 and a valve port 3, and the valve port 3 is provided with a valve plate 4; the valve plate 4 It includes a cylindrical body 41 with a sealed upper end and an open lower end. The periphery of the lower end opening of the cylindrical body 41 is provided with an annular flange 42 with a diameter larger than that of the cylindrical body. The wall of the cylindrical body is provided with a spiral Shaped air vent 43; the inner diameter of the valve port 3 of the valve seat 1 is larger than the inner diameter of the valve cavity 2, and an annular step 5 is formed at the connection between the valve port 3 and the valve cavity 2, and the annular flange of the valve plate 4 42 is located on the step 5, and an annular valve cover 6 is screwed to the inner wall of the valve port throug...

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Abstract

The invention provides a simple one-way breathing valve plate. The valve plate comprises a valve seat. The valve seat is provided with a valve cavity and a valve port. A valve plate body is arranged in the valve port and comprises a cylinder with the upper end sealed and the lower end opened. A ring flange with the diameter greater than that of the cylinder is arranged on the periphery of an opening in the lower end of the cylinder. A spiral air vent is formed in the cylinder wall of the cylinder. The inner diameter of the valve port of the valve seat is greater than that of the valve cavity.A ring step is formed in the position where the valve port is connected with the valve cavity. The ring flange of the valve plate body is located on the step. A ring valve cover is in threaded connection with the inner wall of the valve port through threads and tightly presses the flange of the valve plate body to the step.

Description

technical field [0001] The invention belongs to the technical field of medical equipment manufacturing, and relates to a breathing control part of a medical anesthesia machine, in particular to a one-way breathing valve of an anesthesia machine. Background technique [0002] In the anesthesia breathing system, it is necessary to control the airflow direction of the patient's inhalation and exhalation, and the expiratory channel is closed when inhaling, and vice versa. The traditional implementation method is to set a one-way valve on the ventilation pipe, and set an elastic valve plate at the valve port. The valve plate is made of metal steel sheet or plastic sheet. When the flow is reversed, push down the valve plate to close the valve port, so as to realize the single-phase flow of air flow. However, in actual use, due to the moisture contained in the gas, the moisture will condense on the valve plate or the valve port, and the valve plate will stick to the valve port, re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/19
Inventor 尚宇驰刘艳辉刁俊
Owner BEIJING AEROSPACE CHANGFENG CO LTD
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