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Clamping butterfly valve body

A clamp butterfly valve and valve body technology, which is applied to the valve details, valve device, valve shell structure, etc., can solve the problems of butterfly valve body and valve plate assembly difficulties, excessive valve operating torque, valve plate wear, etc., to achieve High bi-directional pressure bearing capacity, good sealing performance and long service life

Inactive Publication Date: 2012-10-24
杨元亭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve inner cavity of this butterfly valve is generally a straight-through type, which forms a cylindrical seal with the valve plate. The assembly of the butterfly valve body and the valve plate is difficult. During use, due to the compression and sealing of the rubber wrapped by the valve plate, it is easy to cause excessive operating torque of the valve. , The valve plate is worn, and only the low-pressure sealing effect can be guaranteed

Method used

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  • Clamping butterfly valve body
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with the accompanying drawings.

[0012] Such as Figure 1-3 As shown, the valve body 1 inner chamber of the present invention is respectively provided with shaft holes 3 of the valve column up and down. An arc-shaped sealing surface 4 is formed around the two bosses, and a widened boss 5 is provided at the position where the arc-shaped sealing surface intersects with the shaft hole of the valve column.

[0013] In the clamp butterfly valve body of the present invention, since both sides of the inner peripheral surface where the inner cavity of the valve body fits with the valve plate are made into bosses and processed into arc surfaces, when assembling, the valve plate is installed in the arc with special valve plate assembly In the type sealing band, the rotation makes the end of the valve body match the end of the valve plate, making the assembly easier and more convenient. The widened boss se...

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Abstract

The invention discloses a clamping butterfly valve body. The upper part and the lower part of a cavity of the valve body are respectively provided with a rotating shaft hole of a valve column, two peripheral edges of the inner peripheral surface of the cavity of the valve body matched with a valve plate are provided with a boss respectively, the inner peripheral surface and the peripheral edges of the two bosses form an arc-shaped sealing surface, and crossing parts of the arc-shaped sealing surface and the rotating shaft holes of the valve column are provided with a widened boss. Since the two edges of the inner peripheral surface of the cavity of the valve body matched with the valve plate are provided with the bosses and are processed into the arc-shaped surface, the valve plate is assembled into an arc-shaped sealing strip via a special valve plate assembly tool during assembly and is then rotated until the end of the valve body is matched with the end of the valve plate, and the assembly is easier and more convenient. Due to sealing of the arc-shaped surface, the sealing surface is matched better.

Description

technical field [0001] The invention relates to the field of valves, in particular to a clamp butterfly valve body. Background technique [0002] Clamp butterfly valve is a valve used for cutting off or regulating pipelines in fire protection, water supply and drainage, ventilation, petroleum, chemical industry, medicine, steel, etc. It is generally composed of a valve body and a valve plate. Rotating shaft, the rotating shaft of the valve plate is installed in the rotating shaft hole of the spool of the valve body, and one end of the rotating shaft protrudes from the rotating shaft hole of the valve body, and a driving device controls the rotation of the valve plate, thereby controlling the opening and closing of the butterfly valve. This butterfly valve is installed on the pipeline by connecting the valve body and the clamp groove on the pipeline through a clamp. The valve inner cavity of this butterfly valve is generally a straight-through type, which forms a cylindrical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/02
Inventor 杨元亭
Owner 杨元亭
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