CN102758771B - Multi-curved surface diaphragm protective plate - Google Patents
Multi-curved surface diaphragm protective plate Download PDFInfo
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- CN102758771B CN102758771B CN201210251078.1A CN201210251078A CN102758771B CN 102758771 B CN102758771 B CN 102758771B CN 201210251078 A CN201210251078 A CN 201210251078A CN 102758771 B CN102758771 B CN 102758771B
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- diaphragm
- support plate
- diaphragm support
- film sheet
- compound film
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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
The invention relates to the diaphragm protective plate member of mechanical diaphragm type metering pump, particularly a kind of edge of diaphragm support plate has many curved surfaces diaphragm protective plate of the recessed curved-surface structure matched with the convex curvature position of compound film sheet.
Background technique
Mechanical diaphragm type metering pump because of structure simple, antiseptic property is superior, good seal performance, and low cost and other advantages is applied widely.Mechanical diaphragm supporting plate is used for mechanical diaphragm type metering pump, mechanical diaphragm supporting plate generally has two kinds of structures, one is that pure teflon forms through sizing mold pressing, another kind of structure is that teflon and rubber bound are composited, inner pre-buried steel liner plate, comparatively speaking, rear a kind of structure using scope is wider.
But traditional mechanical diaphragm supporting plate has some defects, when slightly superpressure, the compound film sheet in mechanical diaphragm supporting plate easily damages, because compound film sheet pressurized produces deformation, and produce sliding friction between meeting and diaphragm support plate, and compound film sheet is because of compressive deformation, and discharge capacity precision also can be made to reduce.
Summary of the invention
Main purpose of the present invention is to overcome deficiency of the prior art, provides a kind of wearing and tearing that can reduce compound film sheet, makes many curved surfaces diaphragm protective plate that discharge capacity precision is more stable.For solving the problems of the technologies described above, solution of the present invention is:
A kind of many curved surfaces diaphragm protective plate is provided, comprise the diaphragm support plate with compound film sheet cooperating, described compound film sheet and diaphragm support plate have relative planar section, and compound film sheet has at the side edge place with diaphragm support plate in protruding curved portion, the edge of described diaphragm support plate has the recessed curved-surface structure matched with the convex curvature position of compound film sheet.
As further improvement, the surface curve radian of the recessed curved-surface structure at described diaphragm support plate edge is 44 ° ~ 47 °.
As further improvement, be smooth curve transition between the recessed curved-surface structure at described diaphragm support plate edge and the planar section of diaphragm support plate.
As further improvement, the radian of described smooth curve is 44 ° ~ 47 °.
As further improvement, be smooth curve transition between the recessed curved-surface structure at described diaphragm support plate edge and the vertical side edge of diaphragm support plate.
As further improvement, the radian of described smooth curve is 19 ° ~ 20 °.
As further improvement, between the recessed curved-surface structure at described diaphragm support plate edge and the vertical side edge of diaphragm support plate, there is an inclined-plane, recessed curved-surface structure and be smooth curve transition between vertical side edge and this inclined-plane.
As further improvement, the radian of described smooth curve is 60 ° ~ 70 °.
As further improvement, through hole is established in the center of described diaphragm support plate, and intermediate bar is sheathed in this hole; One end of intermediate bar is connected to the center of the diaphragm iron core being located at compound film sheet inside, and the other end is bolted in the screw in crosshead; Sheathed bullet pad on intermediate bar between diaphragm support plate and crosshead.
As further improvement, the diameter of described diaphragm iron core and the diameter ratio of compound film sheet are 0.40 ~ 0.45, and the diameter of diaphragm iron core and the diameter ratio of diaphragm support plate are 0.54 ~ 0.60.
Compared with prior art, the invention has the beneficial effects as follows:
1, make that there is between compound film sheet and diaphragm support plate less sliding friction, greatly reduce the wearing and tearing of compound film sheet, thus extend the life-span of compound film sheet.
2, effectively can reduce the elastic deformation amount of compound film sheet, improve discharge capacity precision.
Accompanying drawing explanation
Fig. 1 is the present invention's many curved surfaces diaphragm protective plate structural drawing.
Fig. 2 is former diaphragm protective plate structural drawing.
Fig. 3 is the enforcement illustration of the present invention's many curved surfaces diaphragm protective plate.
Fig. 4 is the concave surface curved-surface structure partial enlarged drawing of the present invention's many curved surfaces diaphragm protective plate.
Reference character in figure is: 1 compound film sheet; 2 diaphragm support plates; 3 diaphragm iron cores; 4 bullet pads; 5 intermediate bars; 6 crossheads; 7 one-way valves; 8 pump heads; 9 media cavity.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
In Fig. 1, many curved surfaces diaphragm protective plate comprises the diaphragm support plate 2 with compound film sheet 1 cooperating, described compound film sheet 1 has relative planar section with diaphragm support plate 2, and compound film sheet 1 has at the side edge place with diaphragm support plate 2 in protruding curved portion, the edge of described diaphragm support plate 2 has the recessed curved-surface structure matched with the convex curvature position of compound film sheet 1.The surface curve radian of the recessed curved-surface structure at described diaphragm support plate 2 edge is 44 ° ~ 47 °, concave surface curved surface effectively can reduce the elastic deformation amount of compound film sheet 1, sliding friction between compound film sheet 1 and diaphragm support plate 2 is reduced, so greatly reduce the wearing and tearing of compound film sheet 1, extend the working life of compound film sheet 1, simultaneously also because compound film sheet 1 amount of deformation reduces, improve discharge capacity precision.
Be smooth curve transition between the recessed curved-surface structure at described diaphragm support plate 2 edge and the planar section of diaphragm support plate 2, the radian of this smooth curve is 44 ° ~ 47 °.Be smooth curve transition between the recessed curved-surface structure at described diaphragm support plate 2 edge and the vertical side edge of diaphragm support plate 2, the radian of this smooth curve is 19 ° ~ 20 °.Have an inclined-plane between the recessed curved-surface structure at described diaphragm support plate 2 edge and the vertical side edge of diaphragm support plate 2, recessed curved-surface structure and be smooth curve transition between vertical side edge and this inclined-plane, the radian of this smooth curve is 60 ° ~ 70 °.
Through hole is established in the center of described diaphragm support plate 2, and intermediate bar 5 is sheathed in this hole; One end of intermediate bar 5 is connected to the center of the diaphragm iron core 3 being located at compound film sheet 1 inside, and the other end is bolted in the screw in crosshead 6; Sheathed bullet pad 4 on intermediate bar 5 between diaphragm support plate 2 and crosshead 6.
The diameter of described diaphragm iron core 3 and the diameter ratio of compound film sheet 1 are 0.40 ~ 0.45, and the diameter of diaphragm iron core 3 and the diameter ratio of diaphragm support plate 2 are 0.54 ~ 0.60.
In Fig. 2, during the work of many curved surfaces diaphragm protective plate, when the unlatching of 7 one, one-way valve, when another is closed, liquid enters media cavity 9 and pressure raises, compound film sheet 1 produces elastic strain to diaphragm support plate 2 under the effect of the pressure, and the convex surface of compound film sheet 1 is adjacent to the concave surface curved sections in diaphragm support plate 2.When original one-way valve 7 opened is closed, when original one-way valve 7 of closing is opened, discharge liquid, media cavity 9 pressure reduces, and compound film sheet 1 produces elastic strain to away from diaphragm support plate 2 under the effect of the pressure, then this process of reciprocation cycle.
Certainly, this many curved surfaces diaphragm protective plate is not only for use and mechanical diaphragm type metering pump, and just a specific embodiment, also can be used in other device.Such conversion all drops within protection scope of the present invention.
Claims (1)
1. curved surface diaphragm protective plate more than a kind, comprise the diaphragm support plate with compound film sheet cooperating, described compound film sheet and diaphragm support plate have relative planar section, and compound film sheet has in protruding curved portion at the side edge place with diaphragm support plate, it is characterized in that, the edge of described diaphragm support plate has the recessed curved-surface structure matched with the convex curvature position of compound film sheet;
The surface curve radian of the recessed curved-surface structure at described diaphragm support plate edge is 44 ° ~ 47 °;
Be smooth curve transition between the recessed curved-surface structure at described diaphragm support plate edge and the planar section of diaphragm support plate, the radian of this smooth curve is 44 ° ~ 47 °;
Be smooth curve transition between the recessed curved-surface structure at described diaphragm support plate edge and the vertical side edge of diaphragm support plate, the radian of this smooth curve is 19 ° ~ 20 °;
Have an inclined-plane between the recessed curved-surface structure at described diaphragm support plate edge and the vertical side edge of diaphragm support plate, recessed curved-surface structure and be smooth curve transition between vertical side edge and this inclined-plane, the radian of this smooth curve is 60 ° ~ 70 °;
Through hole is established in the center of described diaphragm support plate, and intermediate bar is sheathed in this hole; One end of intermediate bar is connected to the center of the diaphragm iron core being located at compound film sheet inside, and the other end is bolted in the screw in crosshead; Sheathed bullet pad on intermediate bar between diaphragm support plate and crosshead; The diameter of described diaphragm iron core and the diameter ratio of compound film sheet are 0.40 ~ 0.45, and the diameter of diaphragm iron core and the diameter ratio of diaphragm support plate are 0.54 ~ 0.60.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210251078.1A CN102758771B (en) | 2012-04-08 | 2012-07-19 | Multi-curved surface diaphragm protective plate |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210099392 | 2012-04-08 | ||
| CN201210099392.2 | 2012-04-08 | ||
| CN201210251078.1A CN102758771B (en) | 2012-04-08 | 2012-07-19 | Multi-curved surface diaphragm protective plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102758771A CN102758771A (en) | 2012-10-31 |
| CN102758771B true CN102758771B (en) | 2015-01-28 |
Family
ID=47053365
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220352437 Expired - Fee Related CN202746177U (en) | 2012-04-08 | 2012-07-19 | Multiple-curved-surface membrane protection plate |
| CN201210251078.1A Active CN102758771B (en) | 2012-04-08 | 2012-07-19 | Multi-curved surface diaphragm protective plate |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220352437 Expired - Fee Related CN202746177U (en) | 2012-04-08 | 2012-07-19 | Multiple-curved-surface membrane protection plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN202746177U (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202746177U (en) * | 2012-04-08 | 2013-02-20 | 杭州大潮石化设备有限公司 | Multiple-curved-surface membrane protection plate |
| CN103711683A (en) * | 2014-01-17 | 2014-04-09 | 沈阳工程学院 | Diaphragm sheet for supercritical diaphragm pump |
| CN105089986A (en) * | 2014-05-20 | 2015-11-25 | 蔡应麟 | Improved balance wheel structure of five-booster-cavity diaphragm pump |
| TWI588365B (en) * | 2014-10-20 | 2017-06-21 | 徐兆火 | Eccentric roundel structure for four-booster chamber diaphragm pump |
| TWI588364B (en) * | 2014-10-20 | 2017-06-21 | 徐兆火 | Eccentric roundel structure for three-compressing-chamber diaphragm pump |
| CN105736327A (en) * | 2014-12-10 | 2016-07-06 | 西安航空动力控制科技有限公司 | Novel oil cavity diaphragm for fuel diaphragm pump |
| CN106438304A (en) * | 2016-08-29 | 2017-02-22 | 邢天宜 | Metal corrugated pipe type membrane for membrane pump and membrane pump provided with membrane |
| CN108521784B (en) * | 2017-09-28 | 2021-10-08 | 深圳市大疆创新科技有限公司 | Pump device and plant protection unmanned aerial vehicle with same |
| CN208950819U (en) * | 2018-09-30 | 2019-06-07 | 深圳市大疆软件科技有限公司 | Diaphragm pump and agriculture unmanned plane |
| CN111520312A (en) * | 2020-04-03 | 2020-08-11 | 利穗科技(苏州)有限公司 | Alternating sanitary diaphragm pump and filtering device thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4238992A (en) * | 1978-10-30 | 1980-12-16 | Wilden Pump & Engineering Co. | Pump diaphragm |
| US5074757A (en) * | 1989-09-21 | 1991-12-24 | Lewa Herbert Ott Gmbh & Co. | Diaphragm pump with mechanically driven diaphragm |
| US5145336A (en) * | 1990-03-13 | 1992-09-08 | Knf Neuberger Gmbh | Diaphragm pump with reinforced diaphragm |
| CN2491620Y (en) * | 2001-07-31 | 2002-05-15 | 李雄 | Efficiency metering diaphragm pump |
| US6655257B1 (en) * | 1999-02-16 | 2003-12-02 | Knf Flodos Ag | Diaphragm pump |
| CN201003477Y (en) * | 2007-01-30 | 2008-01-09 | 上海江浪流体机械制造有限公司 | Diaphragm pump baffle plate |
| CN202746177U (en) * | 2012-04-08 | 2013-02-20 | 杭州大潮石化设备有限公司 | Multiple-curved-surface membrane protection plate |
-
2012
- 2012-07-19 CN CN 201220352437 patent/CN202746177U/en not_active Expired - Fee Related
- 2012-07-19 CN CN201210251078.1A patent/CN102758771B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4238992A (en) * | 1978-10-30 | 1980-12-16 | Wilden Pump & Engineering Co. | Pump diaphragm |
| US5074757A (en) * | 1989-09-21 | 1991-12-24 | Lewa Herbert Ott Gmbh & Co. | Diaphragm pump with mechanically driven diaphragm |
| US5145336A (en) * | 1990-03-13 | 1992-09-08 | Knf Neuberger Gmbh | Diaphragm pump with reinforced diaphragm |
| US6655257B1 (en) * | 1999-02-16 | 2003-12-02 | Knf Flodos Ag | Diaphragm pump |
| CN2491620Y (en) * | 2001-07-31 | 2002-05-15 | 李雄 | Efficiency metering diaphragm pump |
| CN201003477Y (en) * | 2007-01-30 | 2008-01-09 | 上海江浪流体机械制造有限公司 | Diaphragm pump baffle plate |
| CN202746177U (en) * | 2012-04-08 | 2013-02-20 | 杭州大潮石化设备有限公司 | Multiple-curved-surface membrane protection plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102758771A (en) | 2012-10-31 |
| CN202746177U (en) | 2013-02-20 |
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Effective date of registration: 20200319 Address after: 311401 No.9, No.7 Road, Dongzhou industrial function zone, Dongzhou street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: DACHAO PUMP INDUSTRY MFG Co.,Ltd. Address before: 310017, Zhejiang, Hangzhou province Jianggan District Peng town five fort village seven sets Patentee before: HANGZHOU DACHAO PETROCHEMICAL EQUIPMENT Co.,Ltd. |