Tilted plate type shifting butterfly valve

A slanting plate type, butterfly valve technology, applied in the direction of lifting valves, valve devices, engine components, etc., can solve the problems of small opening and closing torque, butterfly plate vibration, unreliable sealing, etc., and achieve reliable two-way sealing, light action, and convenient processing. Effect

Inactive Publication Date: 2005-03-23
JIANGSU SHENTONG VALVE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of the existing metal-sealed butterfly valve, such as large opening and closing torque, discontinuous sealing line, unreliable sealing, uneven disengagement distance when the low-torque butterfly valve is opened, and vibration of the butterfly plate, the present invention provides a slant plate type translational butterfly valve, The sealing surface of the inclined plate translational butterfly valve is a positive cone, the sealing line is continuous, and the sealing is reliable; when it moves, it first translates and then rotates, and the opening and closing torque is small

Method used

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  • Tilted plate type shifting butterfly valve
  • Tilted plate type shifting butterfly valve
  • Tilted plate type shifting butterfly valve

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Embodiment Construction

[0010] Such as figure 1 , 2 As shown, the driving device (1) and the valve body (7) are connected through the bracket (2), one end of the upper valve shaft (10) is connected to the driving device (1) through a key, and the other end extends into the butterfly plate (11) In the U-shaped groove shaft seat, the sealing ring (16) is installed on the butterfly plate (11) through the pressure plate (17), the butterfly plate (11) is installed in the valve body (7) at an angle of β, and the lower valve shaft (12) One end is installed in the valve body (7), the other end extends into the U-shaped groove shaft seat of the butterfly plate (11), and the upper valve shaft (10) and the lower valve shaft (12) extend into the shaft seat of the butterfly plate (11). A part of one end is symmetrically milled to match the U-shaped groove of the butterfly plate, and a chute is symmetrically milled, such as image 3 shown. The threaded positioning pin shaft (9) is screwed in from the side of th...

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PUM

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Abstract

The invention offers a ramp type translation butterfly valve. It is made up of drive unit, bear frame, valve body, butterfly plate, seal ring, clamping plate, bearing, filler, gland, up valve shaft, down valve shaft, axle sleeve, filling piece, locating pin shaft, cap nut, end cover, and so on. Its feature is that the butterfly plate is equipped in the valve body with the angle of beta. Axle seat of the butterfly plate is U shape chase. One end of the up valve shaft and down valve shaft which are embedded into the axle seat is milled into plane with skewed slot. The butterfly plate is connected to the up valve shaft and the down valve shaft by the locating pin shaft with helical burr. The advantage of the invention is that the butterfly plate is rotated after the clearance translates when it's make and break; the action is portability; sealing surface is right cone; manufacture is convenient. It can realize the reliable seal; the unique outpost type axial direction fix position make the valve can be equipped at random angle; full mechanical type self locking pretension seal can realize the reliable two way seal.

Description

Technical field [0001] The invention relates to a slant plate type translational butterfly valve for cutting off a medium on a pipeline, which is a valve device. Background technique [0002] At present, all kinds of metal-sealed butterfly valves used in metallurgy, petrochemical, municipal and other fields, the butterfly plate only rotates around the valve shaft when opening and closing, the friction torque is large when the valve is opening and closing, and the sealing pair is an inclined cone, and the processing is intermittent Cutting, the sealing line is disconnected, and the sealing is not reliable. In addition, the Chinese Patent Gazette disclosed a low-torque butterfly valve with a patent application number of 00119105.5 on January 2, 2002. The valve seat is disengaged, and then rotates to realize the opening of the valve. However, due to the swing, the disengagement distance of the sealing surface is uneven. The board vibrates. Contents of the invention [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/22
Inventor 张逸芳陆平
Owner JIANGSU SHENTONG VALVE
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