Valve and valve rod booster

Abstract

The invention relates to a valve and valve rod booster. The valve and valve rod booster comprises a shell, a first fixing part, a second fixing part and a power rod. The shell comprises a bottom plate. The first fixing part and the second fixing part are slidably mounted on the bottom plate in sequence. The opposite sides of the first fixing part and the second fixing part are correspondingly provided with first clamping teeth and second clamping teeth, wherein the shapes of the first clamping teeth and the second clamping teeth are matched. The first clamp teeth and the second clamping teethare matched to clamp a valve rod. A first limiting hole used for being penetrated by the power rod is formed in the shell. The valve and valve rod booster has many functions, besides realization of the function of full opening of valve power, the problem of power opening of a damaged valve is solved, in the opening process, fixing and clamping of a valve handwheel or the valve rod can be achieved,and hidden dangers for equipment or personal safety caused by slippage of a device in the opening process is avoided; and through a trapezoidal thread transmission mechanism, the clamp teeth spacingis adjusted, and the purpose of power opening of valve handwheels of different diameters is achieved.

Description

technical field [0001] The invention relates to the technical field of pressure pipeline equipment, in particular to a valve stem booster. Background technique [0002] Various valves on pipelines and equipment will occur during use due to the harsh operating environment, such as corrosion of the metal surface or interior of the valve under complex working conditions such as the atmosphere or solution, or Improper use methods such as impact or long lever forceful operation lead to damage to the handwheel, handwheel fall off, etc. When these situations occur, it will further cause the valve to be difficult to open, and in more serious cases, the valve cannot be opened, which will seriously affect the flow of the fluid. This has brought hidden dangers to the safe use of industrial valves, and has affected the safe production and economic benefits of various departments. [0003] The existing device for assisting the valve mainly limits the shape and position of the valve hand...

AI Technical Summary

Problems solved by technology

[0002] Various valves on pipelines and equipment will occur during use due to the harsh operating environment, such as corrosion of the metal surface or interior of the valve under complex working conditions such as the atmosphere or solution, or Improper use methods such as impact or long lever forceful operation lead to damage to the handwheel, handwheel fall off, etc. When these situations occur, it will further cause the valve to be difficult to open, and in more serious cases, the valve cannot be opened, which will seriously affect the flow of the fluid. This has brought hidden dangers to the safe use of industrial valves, and has affected the safe production and economic benefits of various departments

[0003] The existing device for assisting the valve mainly limits the shape and position of the valve handwheel by designing a certain structural form, and does not make a good connection between the valve handwheel and the external device. During the process of applying external force , which may cause the device to slip, causing hidden dangers to equipment or personal safety

In addition, none of these devices can be applied to damaged valves, such as the valve handwheel falling off and only the valve stem remaining

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