Integrated decagonal-shaft pin-free butterfly valve

An integrated, ten-sided technology, used in valve lifters, valve devices, engine components, etc., can solve problems such as valve loss, increase product quality instability, etc., and achieve the effect of accurate center position, simple and reliable connection, and stable rotation.

Inactive Publication Date: 2016-12-14
BENSV VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the valve stem and valve plate rely on the pin to drive, once the pin is damaged, the valve will lose its function, and the pin hole must be sealed, which will increase the instability of product quality

Method used

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  • Integrated decagonal-shaft pin-free butterfly valve

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0014] Such as figure 1 As shown, an integrated ten-axis pinless butterfly valve includes a valve body 1, a valve plate 4, a valve stem 9 and a valve seat 2. The valve seat 2 is set on the inner circle of the valve body 1, and the valve plate 4 is rotatably fixed on the middle part of the valve seat 2, the middle part of the valve plate 4 is provided with a through hole, and the lower part of the through hole is decagonal, and the valve stem 9 is inserted into the valve body through the upper part of the valve body 1 and the through hole of the valve plate 4 1 lower part, the part of the valve stem 9 in contact with the decagon at the lower part of the through hole of the valve plate 4 is a decagon of a size that can be engaged, the bottom of the valve body 1 is provided with a bottom end cover 11, and the upper part of the valve body 1 and Two upper shaft s...

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PUM

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Abstract

The invention provides an integrated decagonal-shaft pin-free butterfly valve. The integrated decagonal-shaft pin-free butterfly valve comprises a valve body, a valve plate, a valve rod and a valve seat; the valve seat sleeves the inner circle of the valve body; the valve plate is rotatably fixed in the middle of the valve seat; a through hole is formed in the middle of the valve plate; the lower part of the through hole is of a decagonal shape; the valve rod penetrates through the upper part of the valve body and the through hole of the valve plate to be inserted into the lower part of the valve body; one part, which is in contact with the decagonal shape of the lower part of the through hole of the valve plate, of the valve rod is of a decagonal shape with an occludable size; a bottom end cover is arranged at the bottom of the valve body; two upper shaft sleeves are arranged between the upper part of the valve body and the valve rod; OV sealing rings are arranged between the two upper shaft sleeves; the top of the valve rod is of a square shape and is connected with a driving device; the valve rod is integrated, has high strength and can accurately and stably rotate; the valve rod and the valve plate are in pin-free connection, and the decagonal shapes on the valve rod and the valve plate are occluded to realize transmission, so that the central position of the valve plate is more accurate; and the top of the valve rod is of the square shape, so that the connection between the valve rod and the driving device of the valve is simple and reliable and the rotation is stable.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to an integrated ten-axis pinless butterfly valve. Background technique [0002] Butterfly valve, also known as flap valve, is a regulating valve with simple structure. The flow of this type of fluid mainly plays the role of cutting and throttling on the pipeline. The opening and closing part of the butterfly valve is a disc-shaped butterfly plate that rotates around its own axis in the valve body to achieve the purpose of opening and closing or adjustment. [0003] The traditional butterfly valve stem is divided into upper and lower parts, and the valve stem and valve plate are connected by pins, so that the valve stem drives the valve plate to rotate. Since the valve stem and the valve plate are driven by pins, once the pins are damaged, the valve will lose its function, and the pin holes must be sealed, which will also increase the instability of product quality. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/22F16K1/48
CPCF16K1/221F16K1/482
Inventor 刘振新王东辉王荣辉王东福王天彪洪炳达
Owner BENSV VALVE CO LTD
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