An anti-mis-opening and mis-closing manual ball valve

A manual ball valve, mis-closed technology, applied in the field of anti-mis-opening and mis-closing manual ball valves, can solve the problems of preventing misoperation, increasing operation complexity, mis-opening or mis-closing, etc., to increase convenience, The effect of reducing the loss of anti-misoperation function and facilitating operation and use

Active Publication Date: 2018-10-09
JIANGSU XUTANG POWER GENERATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the operation between fully closed and fully open is only 90° (1 / 4 turn), it is easy to cause it to be opened or closed by mistake and it is not easy to be detected, resulting in accidents
[0003] In the prior art, the method of installing the positioning piece on the valve handle of the ball valve is often used, and the positioning piece at the switch position is perforated to insert a pin or lock. Although the safety is guaranteed, the complexity of the operation is increased. If the pin and the lock during use If it is lost, it cannot prevent misoperation

Method used

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  • An anti-mis-opening and mis-closing manual ball valve
  • An anti-mis-opening and mis-closing manual ball valve

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Embodiment Construction

[0026] The present invention is described in further detail now in conjunction with accompanying drawing. The drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0027] A manual ball valve preventing mis-opening and mis-closing, including a valve body 9, a valve stem 6, a switch position restriction piece 5 connected to the valve stem, and fully-open positioning bolts 4 and fully-close positioning bolts 1 arranged on both sides of the valve stem 6 , wherein the middle part of one side of the switch position constraining piece 5 is provided with an outwardly protruding shut-off limit lug 7 and an open-stop limit lug 8, and a stop slide parallel to the shut-off limit lug 7 is provided at the same time 2 and / or the stop slide 3 parallel to the opening and stopping limit lug 8, the stop slide is installed on the switch posit...

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PUM

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Abstract

The invention discloses a manual ball valve preventing mistaken opening and closing. The manual ball valve comprises a valve body, a valve rod, an opening-closing position restraining piece connected with the valve rod, and locating bolts arranged on the two sides of the valve rod, wherein limiting sliding pieces used for preventing the ball valve from being mistakenly opened or mistakenly closed are arranged on the opening-closing position restraining piece. Through the device, the opening-closing state of the ball valve in the working state is maintained, the maintaining of the opening-closing state of the ball valve requires to be manually unlocked, the mistaken touch prevention function can be further shielded under the condition that accessories are not changed and disassembled, and the utilization convenience in the debugging maintenance state is achieved; and the manual ball valve is reasonable in structure, easy and convenient to operate, high in safety and applicable to popularization and utilization.

Description

technical field [0001] The invention relates to a ball valve, in particular to a mis-opening and mis-closing prevention type manual ball valve. Background technique [0002] Ball valve is a common valve in industrial production and daily life. The closing part is a sphere, and the sphere rotates around the center line of the valve body to achieve the purpose of opening and closing. It has small fluid resistance, simple structure, small size, light weight and reliability. High performance, easy operation, etc., are widely used. Because the operation between its fully closed and fully opened only has 90° (1 / 4 circle), and it is easy to cause its mis-opening or mis-closing and is difficult to be detected, thereby causing accidents. [0003] In the prior art, the method of installing the positioning piece on the valve handle of the ball valve is often used, and the positioning piece at the switch position is perforated to insert a pin or lock. Although the safety is guaranteed,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K35/02
CPCF16K35/025
Inventor 王翔
Owner JIANGSU XUTANG POWER GENERATION
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