Check valve device and pump structure thereof

A technology of check valve and air pump, which is applied in the direction of pumps, pump components, variable-capacity pump components, etc. It can solve the problem that the opening pressure and reverse airtightness of the air outlet valve are not easy to control, and the forward opening and reverse closing of the air outlet are not easy Control and other issues

Pending Publication Date: 2022-01-28
XIAMEN CONJOIN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the head-shaped air outlet valve, only the neck of the head is connected with the body, the head is directly covered on the air hole of the valve seat, and the head swings around the neck to realize the switch. The opening pressure and reverse airtightness of the air outlet valve are not easy to control
Umbrella-shaped air outlet valve, the umbrella handle is directly inserted into the air hole of the valve seat, the umbrella cover is covered on the edge of the air hole of the valve seat, the umbrella is turned up to open, the opening pressure and reverse airtightness of the air outlet valve are not easy to control
Like this, because the air outlet valve of the existing diaphragm pump is directly covered at the air hole of the valve seat, the forward opening and reverse closing of the air outlet are not easy to control, and there is indeed a need for improvement.

Method used

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  • Check valve device and pump structure thereof
  • Check valve device and pump structure thereof
  • Check valve device and pump structure thereof

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] Such as Figures 1 to 3 A check valve device shown includes a channel 21 for fluid entry, an air outlet cavity 61 for fluid outflow, and a bowl-shaped diaphragm 1, and is characterized in that it also includes a convex valve that cooperates with the bowl-shaped diaphragm 1 Platform 2, the bowl-shaped diaphragm 1 is set as a hollow cylindrical body that is concave in the middle to form a bowl-shaped groove surface 12, and the middle bottom of the bowl-shaped groove surface 12 is provided with a through hole 11, and the boss 2 It is set opposite to the bowl bottom through hole 11 of the bowl-shaped diaphragm 1, and the edge of the through hole 11 of the bowl-shaped diaphragm 1 is placed on the boss 2; wherein, the passage opening of the passage 21 faces The grooved surface 12 of the bowl-shaped diaphragm 1 is provided.

[0041] Such as ...

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PUM

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Abstract

The invention relates to a check valve device and a pump structure thereof. The check valve device is provided with a bowl-shaped diaphragm and a boss, the periphery of the bowl-shaped diaphragm is high, the middle of the bowl-shaped diaphragm is low, a through hole is formed in the bowl bottom of the bowl-shaped diaphragm, the boss is arranged below the bowl bottom, and the edge of the through hole is lapped on the boss. The pressure during forward opening is easier to control, and reverse sealing is better guaranteed.

Description

technical field [0001] The invention relates to a non-return and one-way fluid valve structure device, in particular to a non-return valve device used in a micro-pump body structure, in particular to a non-return valve device and its pump structure. Background technique [0002] In the micropump industry, the existing one-way check valves for fluid outlets generally adopt man-shaped valves or umbrella valves. Such as the air outlet check valve: the air outlet valve of the Chinese invention patent "CN201820369020.X automatic silencer pump" is an umbrella valve, the air outlet valve of the Chinese invention patent "CN202020990995.1 quick pressure relief valve assembly" is in the shape of a human head, and the Chinese invention patent "CN201520022172 .9 A kind of air outlet valve of a kind of " miniature water pump " that three-bell-shaped conjoined diaphragm is housed is human head shape. Among them, the head-shaped air outlet valve, only the neck of the head is connected wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B39/10F04B45/047
CPCF04B39/10F04B45/047
Inventor 颜宏
Owner XIAMEN CONJOIN ELECTRONICS TECH
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