CN215928393U

CN215928393U - Vacuum valve

Info

Publication number: CN215928393U
Application number: CN202122028675.5U
Authority: CN
Inventors: 汪文
Original assignee: Beijing Valve Longxing Electromechanical Equipment Co ltd
Current assignee: Beijing Valve Longxing Electromechanical Equipment Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-03-01
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a vacuum valve which comprises a valve body, an air cylinder and a sealing element, wherein the valve body is connected with an output shaft of the air cylinder through the sealing element, the sealing element is provided with a groove corresponding to the valve body, and fluororubber is filled in the groove; the sealing element is in threaded connection with the output shaft of the cylinder. In this embodiment, the fluororubber is melted and dissolved in the groove of the groove by one-step molding. The groove shape of the groove can avoid the falling of the sealing element, and the fluororubber is filled in the groove, so that the elasticity of the sealing material can be kept, zero leakage is realized, and the sealing property is greatly enhanced; meanwhile, the sealing element is in threaded connection with the output shaft of the air cylinder, so that the sealing element is convenient to detach and replace.

Description

Vacuum valve

Technical Field

The utility model relates to the technical field of valves, in particular to a vacuum valve.

Background

The vacuum valve refers to a vacuum system component used for changing the direction of air flow, adjusting the magnitude of air flow and cutting off or connecting a pipeline in a vacuum system.

However, the vacuum valves used at present mainly have the following problems:

1) the sealing surface is plane sealing, the sealing element is prefabricated and formed, no sealing groove is formed, and great leakage risk exists in the using process; 2) the valve cylinder shaft and the sealing element are welded or integrally processed, so that the valve cylinder shaft and the sealing element are inconvenient to disassemble and replace; 3) the existing valve sealing material and the sealing element are unreasonable in joint and easy to fall off to cause leakage.

Therefore, it is an urgent problem to provide a vacuum valve with good sealing effect.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a vacuum valve, which can enhance the sealing effect.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a vacuum valve comprises a valve body, an air cylinder and a sealing element, wherein the valve body is connected with an output shaft of the air cylinder through the sealing element, the sealing element is provided with a groove corresponding to the valve body, and fluororubber is filled in the groove; the sealing element is in threaded connection with the output shaft of the cylinder.

By adopting the scheme, the utility model has the beneficial effects that:

1) the groove shape can avoid the falling off of the sealing element, and the fluororubber is filled in the groove, so that the elasticity of the sealing material can be kept, zero leakage is realized, and the sealing property is greatly enhanced;

2) the sealing element is in threaded connection with the output shaft of the cylinder, and is convenient to detach and replace.

Further, the groove is a trapezoidal groove; the trapezoid groove comprises an upper bottom, a lower bottom and a waist, and the length of the upper bottom is smaller than that of the lower bottom; the angle of inclination of the waist is 45 degrees.

The beneficial effect who adopts above-mentioned further technical scheme to produce does, avoids droing of sealing member, guarantees sealed effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a vacuum valve provided by the present invention;

fig. 2 is an enlarged schematic structural diagram of a point a in fig. 1 according to the present invention.

In the figure: 1-valve body, 2-cylinder, 3-sealing element, 4-fluororubber, 21-output shaft and 31-groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the embodiment of the utility model discloses a vacuum valve, which comprises a valve body 1, a cylinder 2 and a sealing element 3, wherein the valve body 1 is connected with an output shaft 21 of the cylinder 2 through the sealing element 3, the sealing element 3 is provided with a groove 31 corresponding to the valve body 1, and the groove 31 is filled with fluororubber 4; the seal 3 is screwed to the output shaft 21 of the cylinder 2. In this embodiment, the fluororubber 4 is dissolved in the groove 31 by one-step molding using a glue melting process.

The shape of the groove 31 can avoid the falling off of the sealing element 3, and the fluorine rubber 4 is filled in the groove, so that the elasticity of the sealing material can be kept, zero leakage is realized, and the sealing property is greatly enhanced; meanwhile, the sealing element 3 is in threaded connection with the output shaft 21 of the cylinder 2, so that the sealing element is convenient to detach and replace.

Specifically, the groove 31 is a trapezoidal groove; the trapezoid groove comprises an upper bottom, a lower bottom and a waist, and the length of the upper bottom is smaller than that of the lower bottom; the angle of inclination of the waist is 45 degrees.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vacuum valve comprises a valve body, an air cylinder and a sealing element, wherein the valve body is connected with an output shaft of the air cylinder through the sealing element; the sealing element is in threaded connection with the output shaft of the cylinder.

2. The vacuum valve according to claim 1, wherein said groove is a trapezoidal groove; the trapezoid groove comprises an upper bottom, a lower bottom and a waist, and the length of the upper bottom is smaller than that of the lower bottom; the angle of inclination of the waist is 45 degrees.