A rotary quick-plug three-way valve
A three-way valve and handle technology, applied in the field of medical equipment, can solve the problems of inconvenient plugging and unplugging of the three-way valve, and the atomization interface is easily used as an oxygen outlet, etc., to achieve the effect of convenient operation, avoiding safety hazards, and quick conversion
Active Publication Date: 2016-04-13
WUHAN W E O SCI & TECH DEV
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Problems solved by technology
[0004] The invention provides a rotary quick-insert three-way valve, which aims to solve the problem that the three-way valve is inconvenient to be removed and inserted in the existing respiratory therapy, and the atomization interface is easily used as an oxygen outlet.
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[0017] refer to figure 1 , a rotary quick-plug three-way valve, including a base 1, a handle 2, a connecting seat 3, a slider 4, a torsion spring 5, a quick-plug O-ring 6, a sealing O-ring 7 and a pressure relief valve 8.
[0018] refer to figure 2 , the base 1 includes a chute 11, a card slot 12 and a column 13, the chute 11 is set on the axis of the base 1, and has a limit structure 111, the middle part of the base 1 is a hollow structure, the card slot 12 is perpendicular to the chute 11, and the column The outer wall of 13 is provided with the locking tooth 131 that prevents the torsion spring 5 from ejecting, and the outer wall of the column 13 is a screw thread, a locking groove or a smooth structure, figure 2 The thread structure is given in .
[0019] refer to figure 2 , The handle 2 includes a card groove 21 and a guide groove 22, the guide groove 22 is arranged on the axis of the handle 2, and the card groove 21 and the guide groove 22 form a perpendicular angl...
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The invention designs a rotary quick-plugging three-way valve comprising a base, a rotary handle, a connecting block, a slider, a torsion spring, a quick-plugging O-shaped ring, a seal O-shaped ring, and a relief valve. The base and the connecting block are connected by means of thread screwing-in, groove fastening, and bonding or welding. Each of the base and the rotary handle is provided with a fastening groove. The torsion spring sleeves a vertical post of the base, one end of an extension of the torsion spring is fastened to the fastening groove of the base, and the other end of the extension of the torsion spring is fastened to the fastening groove of the rotary handle, and the base and the rotary handle are movably connected through the torsion spring. The quick-plugging O-shaped ring is disposed in the vertical post of the base. The slider is movably disposed along the axis of the base. The seal O-shaped ring is arranged at the bottom of a flowmeter connector of the connecting block. The relief valve is disposed in a relief valve hole on one side of the connecting block. The rotary quick-plugging three-way valve has the advantages that atomizing and wetting can be quickly switched, one air way is used for both atomizing and wetting, potential safety hazards caused by nursing staff mistaking an atomizing connector as an oxygen outlet can also be avoided, and operation by rotational plugging is convenient and easier.
Description
technical background [0001] The invention belongs to the field of medical equipment, and in particular relates to a rotary quick-insert three-way valve. Background technique [0002] In clinical respiratory therapy, oxygen inhalation therapy and nebulization therapy often need to be carried out alternately. Oxygen inhalation therapy requires nebulization treatment, while nebulization therapy does not need humidification treatment. The two cannot be flexibly switched. In order to solve this problem, the application A special quick-plug three-way valve for oxygen inhalation has been disclosed (publication number: CN202263277U). In the clinical use of this invention, it is found that the quick-plug humidification device interface is not easy to pull out after being connected to the humidification device, which increases the labor intensity of nurses, and the atomization interface is easily mistaken for the oxygen outlet, resulting in misoperation. [0003] In view of the above...
Claims
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IPC IPC(8): A61M16/20
Inventor 黄超杨建利吴其玉
Owner WUHAN W E O SCI & TECH DEV