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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, reducing production costs, and increasing microbial activity

Active Publication Date: 2014-01-01
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. The flux-adjustable duckbill valve comprises a valve body and a flow regulator arranged in the valve body, wherein the valve body sequentially comprises an inlet section, an elastic flat-cone-shaped transition section and an elastic tabular outlet section; the flow regulator comprises an outer pipe and an inner pipe which are sleeved with each other, a gap for media to flow is formed between the inner wall of the outer pipe and the outer wall of the connecting section, at least one shunting hole communicated with the gap is formed in the side wall of the connecting section, an outlet hole for the media to flow out is formed in the lower end part of the outer pipe and is located in the transition section (12), and a blocking end for blocking the outlet hole is arranged at the lower end part of the connecting section. The flow-adjustable duckbill valve has the advantage of being suitable for different working environments through regulating the flow according to requirements; the circulation tracks of the media are changed through the flow regulator arranged in the valve body, so that the gap at a valve mouth cannot be deformed due to the large-area circulation of the media, and the service life is prolonged.

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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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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