Connection structure for ball valve handle

A connection structure and handle technology, which is applied in the direction of valve operation/release device, valve details, valve device, etc., can solve the problems of loose nut, low mechanical strength, and handle falling off, etc., and achieve simple connection structure and long service life , the effect of not easy to rust

Inactive Publication Date: 2007-09-26
曾茂生
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. Since the handle of the ball valve is frequently pulled during use, it is easy to cause the nut to loosen and cause the handle to fall off, which affects the normal use of the ball valve
[0004] 2. The connecting part of the valve stem and the handle is exposed outside, often exposed to rainwater and other external substances, and it is easy to rust and break after a period of use
[0005] 3. In the existing ball valve, the handle is made of metal sheet, its mechanical strength is not high, and it may be bent or even broken during use

Method used

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  • Connection structure for ball valve handle
  • Connection structure for ball valve handle
  • Connection structure for ball valve handle

Examples

Experimental program
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Effect test

Embodiment Construction

[0020] As shown in FIGS. 1 to 5 , the ball valve with the handle connection structure includes a valve body 2 , a valve core 4 , a valve stem 3 , a pin shaft 5 and a handle 1 . The handle 1 is mounted on the outside of the valve body 2 and connected with the valve stem 3 . A sealing ring 7 for sealing is provided between the valve body 2 and the valve stem 3 .

[0021] As shown in Figure 1, in the connecting structure of the ball valve handle, the handle 1 is composed of a handle body 12 and a handle 11, wherein the handle body 12 is cylindrical, and the handle 11 is bar-shaped. In this embodiment, there are two handles 11 in the handle 1 , which are respectively located on two sides of the handle body 12 . This structure is convenient to turn the handle 1.

[0022] As shown in FIG. 3 , the handle body 12 is connected with the handle 11 as a whole and formed at one time. The handle 1 of the present invention can be made of plastics, and can also be made of metal materials. ...

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PUM

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Abstract

This invention relates to ball valve connection structure in valve technique field. The structure is located on the ball valve and handle connection area and the valve lever stretches out the valve connected to the handle, which is composed of cylinder handle and bar handle connected and has one hole through handle and the hand head. The valve lever outer end is set with connection hole. One bolt axis goes through the hand hole and the valve lever connection hole. The valve is set with block edge to limit the handle rotation angle.

Description

technical field [0001] The invention belongs to the technical field of valves and relates to a connection structure of a ball valve handle. Background technique [0002] At present, ball valves are widely used in various water, oil, gas and other pipelines. In the existing ball valve, the handle is sleeved on the outer end of the valve stem, and the two are firmly connected together by pressing the nut. This connection between the handle and the valve stem causes many problems during use, mainly in: [0003] 1. Since the handle of the ball valve is frequently pulled during use, it is easy to cause the nut to loosen and cause the handle to fall off, which affects the normal use of the ball valve. [0004] 2. The connecting part of the valve stem and the handle is exposed outside, often exposed to external substances such as rainwater, and it is easy to rust and break after a period of use. [0005] 3. In the existing ball valve, the handle is made of sheet metal, which has...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/60F16K5/08
Inventor 应金多
Owner 曾茂生
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