Internally-arranged tapered rubber check valve

A check valve and rubber cone technology, applied in the direction of control valves, valve devices, functional valve types, etc., can solve the problems of poor sealing and residents' troubles, achieve small opening force, reliable sealing, and prevent the escape of odorous gases Effect

Inactive Publication Date: 2014-10-22
WUHAN SHENGYU DRAINING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The non-return equipment at the outlet of the existing sewage pipe is installed at the pipe outlet or the mouth of the flow channel and is exposed to the outside. Therefore, to a certain extent, defects such as poor sealing are common, resulting in sewage backflow, insects or small animals entering the pipe body, and odorous gases. Due to the backflow of sewage and the discharge of odorous gas, nearby residents are troubled

Method used

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  • Internally-arranged tapered rubber check valve
  • Internally-arranged tapered rubber check valve

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Embodiment Construction

[0011] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clear understanding of the present invention, but they do not limit the present invention.

[0012] like figure 1 , figure 2 As shown, the present invention includes a pipe body 1, and a tapered rubber membrane 2 of the sealing and non-return pipe body 1 is fixed inside the pipe body 1 . The tapered rubber mold 2 includes a side wall 2.1 that fits the inner wall of the pipe body 1. The longitudinal center section of the side wall 2.1 is a trapezoidal structure with a long top and a short bottom. One end of the side wall 2.1 is sealed and connected with an inclined The water retaining surface 2.2, the other end of the side wall 2.1 is an open end, and the water retaining surface 2.2 is arranged facing the flow direction of the water flow in the pipe body 1 in a forward direction. The top of the side wall 2.1 of the tape...

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Abstract

The invention relates to an internally-arranged tapered rubber check valve, and belongs to the technical field of water supply and drainage equipment. The internally-arranged tapered rubber check valve comprises a pipe body. A tapered rubber film sealing and stopping the pipe body is fixed inside the pipe body. According to the internally-arranged tapered rubber check valve, back flow of sewage is effectively prevented, and smelly gas is better prevented from being escaping due to the fact that the check valve is arranged inside a pipeline. The check valve is opened or closed mainly by bending the lower portion of the tapered rubber film, the opening force is small, and sealing is reliable.

Description

technical field [0001] The invention belongs to the technical field of water supply and drainage equipment, and in particular relates to a built-in rubber cone check valve. Background technique [0002] The non-return equipment at the outlet of the existing sewage pipe is installed at the pipe outlet or the mouth of the flow channel and is exposed to the outside. Therefore, to a certain extent, defects such as poor sealing are common, resulting in sewage backflow, insects or small animals entering the pipe body, and odorous gases. The escape of sewage caused troubles to nearby residents due to the backflow of sewage and the discharge of odorous gas. Contents of the invention [0003] The object of the present invention is to provide a built-in rubber cone check valve for the defects of the prior art. [0004] The technical solution adopted in the present invention is: comprising a pipe body, the inside of which is fixed with a tapered rubber membrane for sealing and non-r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/14
CPCF16K15/144
Inventor 周超
Owner WUHAN SHENGYU DRAINING SYST
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