Multi-curved surface diaphragm protective plate
A sheet membrane and multi-curved surface technology, which is applied in the field of multi-curved membrane sheet membrane panels, can solve the problems of easy damage of composite membranes and reduced displacement accuracy, and achieve the effects of reducing elastic deformation, prolonging life, and reducing wear
Active Publication Date: 2015-01-28
杭州大潮泵业制造有限公司
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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
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[0023] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:
[0024] figure 1 Among them, the multi-curved membrane protective membrane plate includes a membrane support plate 2 that works in cooperation with the composite membrane 1. The composite membrane 1 and the membrane support plate 2 have opposite flat portions, and the composite membrane 1 is in contact with the membrane. The edge joint of the film support plate 2 has a convex curved surface part, and the edge of the film support plate 2 has a concave curved surface structure matching the convex curved surface part of the composite diaphragm 1. The surface curvature of the concave curved structure at the edge of the diaphragm support plate 2 is 44°~47°, and the concave curved surface can effectively reduce the elastic deformation of the composite diaphragm 1, so that the composite diaphragm 1 and the diaphragm support plate 2 The sliding friction betwe...
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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 a diaphragm protective film plate component of a mechanical diaphragm metering pump, and particularly relates to a multi-curved diaphragm protective plate whose edge of a diaphragm support plate has a concave curved surface structure matched with the convex curved surface of a 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. Mechanical diaphragm pallets are used for mechanical diaphragm metering pumps. Mechanical diaphragm pallets generally have two structures, one is pure PTFE through molding and molding, and the other structure is PTFE and rubber bonded composite In comparison, the latter structure has a wider application range. [0003] However, the traditional mechanical diaphragm pallet has some defects. When there is a slight overpressure, the compos...
Claims
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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