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A butterfly valve with high precision adjustment function

A high-precision, functional technology, applied in the direction of valve lift, valve detail, valve device, etc., can solve the problems of difficult-to-rotate angle control, small flow resistance, etc., and achieve the effect of precise angle

Active Publication Date: 2022-07-15
ZHEJIANG DECA CONTROL VALVE METER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When some traditional butterfly valves are adjusted, the butterfly valve is generally adjusted by manual rotation. When the butterfly valve is fully opened, it has a small flow resistance. Flow control, so in the field of large-diameter regulation, the application of butterfly valves is very common, but the traditional rotation adjustment method is difficult to accurately control the rotation angle

Method used

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  • A butterfly valve with high precision adjustment function
  • A butterfly valve with high precision adjustment function
  • A butterfly valve with high precision adjustment function

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Experimental program
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Effect test

Embodiment

[0042] see figure 1 , 3 And 6-8, a butterfly valve with high-precision adjustment function, comprising a valve pipe casing 1, the inner wall of the valve pipe casing 1 is rotatably connected with a rectangular cavity connecting rod 2, and the outer circumferential surface of the rectangular cavity connecting rod 2 is fixedly connected with a For the shut-off butterfly 3, the upper end of the rectangular cavity connecting rod 2 is rotatably connected with a rectangular cavity connecting rod 4, the upper end of the rectangular cavity connecting rod 4 is fixedly connected with a rectangular cavity gear 5, and the outer circumferential surface of the valve pipe shell 1 is fixedly connected There is a connecting shell 6, the rectangular cavity gear 5 is located in the inner cavity of the connecting shell 6, the upper end of the rectangular cavity gear 5 is rotatably connected with the inner top of the connecting shell 6, and the front surface of the connecting shell 6 is cut with a...

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Abstract

The invention discloses a butterfly valve with high-precision adjustment function, belonging to the field of butterfly valves, and a butterfly valve with high-precision adjustment function. Cavity, rotating the rotating disc and then matching the isolation rod, it can skip the rectangular cavity gear and directly rotate the rectangular cavity connecting rod, and can directly close the butterfly valve. In this way, when there is no angle adjustment requirement, the butterfly valve can be closed and opened faster. The initial condition of its precise adjustment needs to pull the rotating disk upwards, release the extrusion of the linkage rectangular rod, and lower the lever arm rod. During the pressing process, the annular air bag is expanded by the elastic air bag and the connecting hose, and the expanded annular air bag squeezes and clamps the rotating rod to maintain the stability of the rotating disk.

Description

technical field [0001] The invention relates to the field of butterfly valves, and more particularly, to a butterfly valve with a high-precision adjustment function. Background technique [0002] Butterfly valve, also known as flap valve, is a kind of regulating valve with simple structure, which can be used for on-off control of low-pressure pipeline medium. It is used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media, and it mainly plays the role of cutting and throttling on the pipeline. The disc-shaped butterfly plate rotates around its own axis in the valve body, so as to achieve the purpose of opening and closing or adjustment. Valves and butterfly valves not only have simple structure, small size, light weight, low material consumption, small installation size, small driving torque, simple and rapid operation, but also have good flow regulation function and closing sealing c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/22F16K1/36F16K1/32F16K27/02F16K31/60F16K31/53
CPCF16K1/22F16K1/36F16K1/32F16K27/0218F16K31/60F16K31/53
Inventor 康健王文胜王中琳叶锋黄建伟程启涛林伟
Owner ZHEJIANG DECA CONTROL VALVE METER
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