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Flow adjustable duckbill valve

An adjustable duckbill valve technology, applied in the field of valve manufacturing, can solve problems such as valve mouth deformation, achieve the effects of prolonging service life, improving purification efficiency, and increasing microbial activity

Active Publication Date: 2016-06-29
ZHEJIANG LIANCHI WATER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a flow-adjustable duckbill valve that can prevent deformation of the valve mouth caused by long-term use.

Method used

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  • Flow adjustable duckbill valve

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Embodiment Construction

[0016] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0017] Such as figure 1 As shown, a flow-adjustable duckbill valve includes a valve body 1 and a flow regulator arranged in the valve body 1. The valve body 1 sequentially includes an inlet section 11, an elastic flat-conical transition section 12 and an elastic flat-shaped Outlet section 13, the flow regulator includes an outer tube 2 and an inner tube 3 that are nested in each other, and the lower end of the inner tube 3 has a connecting section 31 covered by the outer tube 2; There is a gap 23 for medium circulation. Specifically, the inner wall of the outer tube 2 is in contact with the connecting section 31 (that is, the outer end of the outer tube), and a ring 25 is pro...

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Abstract

The invention discloses a flow-adjustable duckbill valve, which comprises a valve body and a flow regulator arranged in the valve body. The valve body successively includes an inlet section, an elastic flat-conical transition section and an elastic flat-shaped outlet section. The flow regulator includes an outer tube and an inner tube that are nested with each other; a gap for medium circulation is provided between the inner wall of the outer tube and the outer wall of the connecting section, and at least one diverter hole communicating with the gap is provided on the side wall of the connecting section; The lower end of the tube is provided with an outlet hole for the medium to flow out, and the outlet hole is placed in the transition section 12; the lower end of the connecting section has a plugging end for blocking the outlet hole. The flow rate can be adjusted according to the needs to adapt to different working environments; 2. Through the flow regulator installed in the valve body, the flow path of the medium is changed, so that the gap at the valve mouth will not be deformed by the large area of ​​medium flow, Extended service life.

Description

technical field [0001] The invention relates to the field of valve manufacturing, in particular to an adjustable flow duckbill valve. Background technique [0002] The existing flexible duckbill check valve is a valve that only allows the medium to flow in one direction, and is widely used in the transportation of various media such as water and air; it is made of elastic material, and the flat valve mouth has a Gap, when the medium is pressed through the valve body, the gap opens, and the medium passes through the valve body smoothly; when the valve body stops working, the internal and external pressure of the valve body is balanced or the external pressure is greater than the internal pressure, the gap depends on the elastic force and external pressure The bottom is closed to prevent the medium from flowing back into the valve body to achieve the function of non-return. [0003] In recent years, the duckbill check valve has been used in the aeration tank of sewage treatme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/00F16K27/00F16K47/02
CPCF16K1/02F16K1/36F16K47/08F16K15/1825
Inventor 池万青
Owner ZHEJIANG LIANCHI WATER EQUIP
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