CN203532954U

CN203532954U - Vacuum valve

Info

Publication number: CN203532954U
Application number: CN201320668828.5U
Authority: CN
Inventors: 许洪才; 丁正亮; 陈实
Original assignee: YANGZHOU SHUANGLIANG VALVE CO Ltd
Current assignee: YANGZHOU SHUANGLIANG VALVE CO Ltd
Priority date: 2013-10-24
Filing date: 2013-10-24
Publication date: 2014-04-09
Anticipated expiration: 2023-10-24

Abstract

The utility model discloses a vacuum valve, relates to a valve and solves the problem that traditional vacuum valve corrugated pipes are easy to damage. The vacuum valve mainly comprises a corrugated pipe welded assembly, a bonnet, a valve rod and a handle. The valve rod is fixedly connected with the handle through a pin, the top of the corrugated pipe welded assembly is fixedly connected with the bonnet through a screw A, three threaded holes are formed and uniformly distributed in the bottom of the bonnet, and the interval between every two threaded holes is 120 degrees. By means of the vacuum valve, the damage rate is greatly reduced, the product service life is effectively prolonged, and the vacuum valve can be widely applied to places in need of vacuum valves.

Description

A kind of vacuum valve

Technical field

The utility model relates to a kind of valve, specifically, relates in particular to a kind of vacuum valve.

Background technique

Traditional vacuum valve valve gap bottom only has a screw for fixedly valve gap and valve body; the phenomenon that usually there will be valve gap to follow handle together to rotate in use for some time; during valve gap rotation, will drive inner bellows and then to rotate; and bellows can only axially move, once the bellows that rotates will damage.

Summary of the invention

The utility model discloses a kind of vacuum valve, for solving the bellows of traditional vacuum valve, hold flimsy problem.

The utility model is achieved through the following technical solutions:

A kind of vacuum valve, comprise bellows group welding piece, valve gap, valve rod, handle, described valve rod is fixedly connected with handle by pin, described bellows group welding piece top is fixedly connected with valve gap by screw first, three tapped holes are offered in valve gap bottom, described three tapped holes are distributed in valve gap bottom, between two 120 °, interval between tapped hole.

Described and the matching used screw of tapped hole is for B-mode number M4.

Compared with prior art, the beneficial effects of the utility model are:

1. the utility model has significantly reduced the spoilage of component bellowss, has effectively extended the working life of product;

2. the utility model is simple in structure, and low cost of manufacture only need be changed slightly on traditional vacuum valve;

3. the utility model applied range, can be widely used in needing the place of vacuum valve.

Accompanying drawing explanation

Accompanying drawing is structural representation of the present utility model.

In figure: 1, bellows group welding piece; 2, valve gap; 3, valve rod; 4, pin; 5, handle; 6, screw first; 7. tapped hole; 8. screw second.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further illustrated:

As shown in the figure, the utility model comprises bellows group welding piece 1, valve gap 2, valve rod 3, handle 5, described valve rod 3 is fixedly connected with handle 5 by pin 4, described bellows group welding piece 1 top is fixedly connected with valve gap 2 by screw first 6, three tapped holes 7 are offered in valve gap 2 bottoms, described three tapped holes 7 are distributed in valve gap 2 bottoms, between two 120 °, interval between tapped hole 7.

Described and matching used screw second 8 models of tapped hole 7 are M4.

Bellows-welding forms bellows group welding piece 1 on assembling valve body and flap, valve rod 3 is threaded with bellows group welding piece 1, valve rod 3 is threaded with valve gap 2 simultaneously, valve gap 2 is also threaded with assembling valve body, screw first 6 is arranged between valve gap and bellows group welding piece 1, prevent that valve rod 3 from driving bellowss rotation, valve gap 2 bottoms are drilled with the tapped hole at 120 °, 3 intervals, for the valve body in fixedly valve gap 2 and bellows group welding piece 1.When rotatable handle 5, because valve gap 2 is fixedly connected with valve body, bellows can only be sat axial motion, can not follow valve gap rotation, has significantly reduced the spoilage of component bellowss, thereby reach, extends the product object in working life.

In sum, it is only preferred embodiment of the present utility model, not be used for limiting the scope that the utility model is implemented, all equalizations of doing according to the shape described in the utility model claim scope, structure, feature and spirit change and modify, and all should be included within the scope of claim of the present utility model.

Claims

1. a vacuum valve, comprise bellows group welding piece (1), valve gap (2), valve rod (3), handle (5), described valve rod (3) is fixedly connected with handle (5) by pin (4), described bellows group welding piece (1) top is fixedly connected with valve gap (2) by screw first (6), it is characterized in that: three tapped holes (7) are offered in valve gap (2) bottom, described three tapped holes (7) are distributed in valve gap (2) bottom, between two 120 °, interval between tapped hole (7).

2. a kind of vacuum valve according to claim 1, is characterized in that: with the matching used screw second of described tapped hole (7) (8) model be M4.