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Multi-curved surface diaphragm protective plate

A technology of sheet protective film and multi-curved surface, applied in the field of multi-curved diaphragm protective film, can solve the problems of reduced displacement accuracy, easy damage of composite diaphragm, etc., to reduce elastic deformation, prolong life, and reduce sliding friction. Effect

Active Publication Date: 2012-10-31
杭州大潮泵业制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional mechanical diaphragm support plate has some defects. When there is a slight overpressure, the composite diaphragm in the mechanical diaphragm support plate is easily damaged, because the composite diaphragm is deformed under pressure and will slide between the diaphragm support plate friction, and the composite diaphragm is deformed under pressure, which will also reduce the displacement accuracy

Method used

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  • Multi-curved surface diaphragm protective plate
  • Multi-curved surface diaphragm protective plate
  • Multi-curved surface diaphragm protective plate

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Embodiment Construction

[0023] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0024] figure 1 Among them, the multi-curved membrane sheet pellicle plate includes a membrane supporting plate 2 that works in cooperation with the composite membrane 1, and the composite membrane 1 and the membrane supporting plate 2 have opposite planar parts, and the composite membrane 1 is in contact with the membrane There are convex curved surface parts at the junctions of the edges of the film supporting plate 2 , and the edges of the diaphragm supporting plate 2 have a concave curved surface structure matched with the convex curved surface parts of the composite diaphragm 1 . The surface curvature of the concave curved surface structure on the edge of the diaphragm supporting plate 2 is 44° to 47°, and the concave curved surface can effectively reduce the elastic deformation of the composite diaphragm 1, so that the gap between the comp...

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Abstract

The invention discloses a diaphragm protective plate component for a mechanical diaphragm metering pump, in particular relating to a multi-curved surface diaphragm protective plate. The multi-curved surface diaphragm protective plate comprises a diaphragm supporting plate matched with a composite diaphragm in working; the composite diaphragm and the diaphragm supporting plate are provided with opposite plane parts, and a projecting curved surface portion is formed at the joint of the edges of the composite diaphragm and the diaphragm supporting plate; and the edge of the diaphragm supporting plate is provided with a concave curved surface structure matched with the projecting curved surface portion of the composite diaphragm. The multi-curved surface diaphragm protective plate is capable of reducing sliding friction between the composite diaphragm and the diaphragm supporting plate, thereby reducing the abrasion of the composite diaphragm and prolonging the service life of the composite diaphragm; furthermore, the multi-curved surface diaphragm protective plate is capable of effectively reducing elastic deformation of the composite diaphragm and improving the displacement accuracy.

Description

technical field [0001] The present invention relates to the membrane shield plate parts of mechanical diaphragm metering pumps, in particular to a multi-curved membrane shield whose edge has a concave curved surface structure matched with the convex curved surface of the composite diaphragm. Diaphragm. Background technique [0002] Mechanical diaphragm metering pumps are widely used due to their simple structure, superior anti-corrosion performance, good sealing performance, and low cost. The mechanical diaphragm support plate is used for mechanical diaphragm metering pumps. The mechanical diaphragm support plate generally has two structures, one is made of pure PTFE after molding, and the other is bonded and compounded by PTFE and rubber. It is formed, and the steel liner is embedded inside. In comparison, the latter structure has a wider range of applications. [0003] However, the traditional mechanical diaphragm support plate has some defects. When there is a slight ov...

Claims

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Application Information

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IPC IPC(8): F04B53/00F04B43/02
Inventor 杨树东
Owner 杭州大潮泵业制造有限公司
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