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a valve

A technology of valves and valve knives, applied in the field of knife gate valves, can solve problems such as valve clogging and affecting sewage discharge efficiency, and achieve the effects of saving installation space, saving working space, and saving axial working space

Active Publication Date: 2017-06-13
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because sewage often contains solid waste, valve clogging often occurs in the prior art
Once the valve is blocked, it will seriously affect the sewage discharge efficiency

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings. It should be pointed out that the specific examples are only used to illustrate the technical solution of the present invention, and should not be construed as limiting the present invention.

[0024] Such as figure 1 , 2 A specific embodiment of the invention is shown. In this embodiment, the valve knife 1 is installed in the valve body 2. In addition to the valve knife hole, the valve knife 1 also has a rectangular cutout at the connection between the valve knife 1 and the first threaded screw rod 5 and the first valve knife connecting seat 4. Such as figure 2 shown. The joints between the valve body 2 and the first screw support frame 3 and the second screw support frame 7 are designed in the width direction of the valve body. The valve knife 1 is connected with the first threaded screw rod 5 through the first valve knife connecting seat 4 , and the through hole...

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PUM

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Abstract

The invention discloses a valve comprising a valve body and a valve knife. The valve knife is arranged in the valve body; one end of the valve knife is provided with a rectangular notch; a first valve knife connection base is used for connecting the valve knife and a first thread screw rod; the first thread screw rod is radially fixed to a first valve knife screw rod support frame; the thread screw rod drives the valve knife to carry out reciprocating motion in the valve knife connection base through thread transmission; the other end of the valve knife is provided with a valve hole and a second valve knife connection base; the cross section of the valve hole is a cosine waveform cross section; the second valve knife connection base is used for connecting the valve knife and a second thread screw rod; the second thread screw rod is radially fixed to a second valve knife screw rod support frame; and the second thread screw rod drives the valve knife to carry out reciprocating motion in the second valve knife connection base through thread transmission. The valve is convenient to clean and can improve fluid transmission efficiency.

Description

technical field [0001] The invention relates to a valve, in particular to an improved knife gate valve which can be used in a sewage treatment vehicle. Background technique [0002] Compared with the installation space, the valves currently on the market have many disadvantages, such as large volume, large work space occupation, and poor fluid flow through the valve. During the working process of the valve, the movement of the valve stem requires a lot of space, and the valve is prone to blockage and other problems. If the installation space is limited and the stability of the work is guaranteed, a knife gate valve with a small footprint, no need for additional space and stable work is required. At the same time, the structure of the valve knife in the prior art is a straight wall cylindrical structure, which is used in the occasion where the fluid flow rate is high. When the fluid flows through the valve knife, there is a gap between the valve knife and the cylinder wall, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/02F16K3/314
CPCF16K3/0209F16K3/314
Inventor 华林苏卓宇李奕慈李晚霞徐杨坤
Owner WUHAN UNIV OF TECH