Unlock instant, AI-driven research and patent intelligence for your innovation.

Gate valve

A gate valve and valve plate technology, which is applied in the field of invention and manufacturing, can solve problems such as the decline of sealing performance, and achieve the effect of eliminating the decline of sealing performance and strengthening the sealing effect.

Inactive Publication Date: 2017-01-11
BOHAI VALVE GRP CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a gate valve to solve the sealing performance degradation caused by the angle deviation and slight wear of the sealing surface during production. use environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Gate valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a gate valve which comprises a valve body. The valve body is provided with an inlet, a gate inserting cavity and an outlet in the horizontal direction. The upper portion of the valve body is provided with a hand wheel through a connecting seat. The hand wheel controls a valve plate to rotate through a valve rod. The valve plate rotates to control the opening and closing state of the gate inserting cavity. The outer side of the valve rod is further provided with a pressing sleeve. The pressing sleeve downwards and spirally moves to downwards extrude an abutting sleeve. The abutting sleeve limits and locks the valve plate through an upper sealing strip. The upper sealing strip is connected with the valve body and has elasticity. The gate valve has the following beneficial effects that the sealing effect of the valve plate is enhanced under the cooperation of the independently arranged pressing sleeve, the abutting sleeve and the upper sealing strip, the problem of sealing performance reduction caused by angle deviation and slight wear of the sealing face of the valve plate is solved, the valve plate can be locked through a locking switch, operation cannot be conducted even through the hand wheel, and the gate valve is particularly suitable for use environments where the gate valve needs to be closed for a long term.

Description

technical field [0001] The invention belongs to the technical field of invention and manufacture, and in particular relates to a gate valve. Background technique [0002] The gate valve is a valve plate of the opening and closing part. The movement direction of the valve plate is perpendicular to the direction of the fluid. Usually, the gate valve can only be fully opened and fully closed. When the gate valve is closed, the sealing surface is sealed by the medium pressure. Angle deviation will occur during the processing, which will lead to reduced sealing effect and shortened service life due to angle deviation and wear of the sealing surface during long-term use. Therefore, there are defects in the existing technology, and further improvement and perfection are needed. Contents of the invention [0003] In view of this, the present invention aims to propose a gate valve to solve the sealing performance degradation caused by the angle deviation and slight wear of the seal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/22F16K1/226F16K35/00
CPCF16K1/22F16K1/2261F16K35/00
Inventor 陈利义
Owner BOHAI VALVE GRP CO LTD