CN104864930A - Elliptical diaphragm for machine core of diaphragm type gas meter - Google Patents
Elliptical diaphragm for machine core of diaphragm type gas meter Download PDFInfo
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- CN104864930A CN104864930A CN201510191196.1A CN201510191196A CN104864930A CN 104864930 A CN104864930 A CN 104864930A CN 201510191196 A CN201510191196 A CN 201510191196A CN 104864930 A CN104864930 A CN 104864930A
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- diaphragm
- gas meter
- elliptical
- type gas
- core
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Abstract
The invention discloses an elliptical diaphragm for a machine core of a diaphragm type gas meter. A whole diaphragm is made into an elliptical truncated cone-shaped diaphragm of which the depth, area and volume are the same as those of an original general diaphragm, so that all obtained cyclic volume doses are the same. Compared with a square truncated cone-shaped diaphragm, the elliptical diaphragm provided by the invention is easier to turn over as the elliptical truncated cone-shaped diaphragm is connected through a major arc, the mechanical pressure loss is smaller, the turnover convex curve is smaller, and the measurement accuracy, durability and stability are improved; the elliptical diaphragm provided by the invention can be applied to a gas meter without large change in other accessories of the gas meter, therefore, the applicability of the elliptical diaphragm is high.
Description
Technical field
The present invention relates to measuring instrument technical field, particularly relate to the oval diaphragm of core of membrane type gas meter of movement permanance.
Background technology
Core of membrane type gas meter diaphragm generally adopts round truncated cone shape or square truncated cone shape.Long, high identical time, the area of circle is little, and the area of side is large, identical for realizing solid of revolution accumulated amount, needs the length, the high size that increase circle truncated cone shape diaphragm, causes whole table body profile to increase, simultaneously also serious waste material, increase cost.Because diaphragm can only be shaped in direction adding man-hour, square truncated cone shape diaphragm greatly not easily overturns in the circular arc position curvature at angle, has depression during upset, and straight line position is long simultaneously, can affect diaphragm upset sizing, thus affect metered volume.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of analogy truncated cone shape diaphragm more easily to overturn, mechanical crushing is little, and upset convex line is little, effectively can improve the oval diaphragm of core of membrane type gas meter of measuring accuracy and useful life longevity, stability, applicability.
The technical scheme adopted is:
The oval diaphragm of core of membrane type gas meter is that whole diaphragm is made elliptical cross section cone diaphragm, identical with former general diaphragm height, area is identical, and then volume is identical, makes each solid of revolution accumulated amount of obtaining identical.
Above-mentioned elliptical cross section cone diaphragm, position, intermediate portion is provided with fixing parallel plate hole and flap axle bed hole.
Above-mentioned elliptical cross section cone diaphragm, is provided with the multiple holes be fixed on core body around it.
Elliptical cross section cone diaphragm of the present invention comparatively suppose that truncated cone shape diaphragm easily overturns, and elliptical cross section cone diaphragm is connected with large arc, and more easily overturn, mechanical crushing is little, and upset convex line is little, improves measuring accuracy and permanance and stability.
Accompanying drawing explanation
Fig. 1 is embodiments of the invention structural representations.
Fig. 2 is the A-A sectional view of Fig. 1.
Embodiment
The oval diaphragm of core of membrane type gas meter, seeing Fig. 1, Fig. 2, is that whole diaphragm is made elliptical cross section cone diaphragm 1, and in the middle of elliptical cross section cone diaphragm, reserved two apertures 2, are used for fixing parallel-plate and flap axle bed.Around elliptical cross section cone diaphragm, reserved 14 apertures 3, are used for diaphragm to be fixed on core body.Elliptical cross section cone diaphragm is identical with former general diaphragm height, area is identical, and then volume is identical, makes each solid of revolution accumulated amount of obtaining identical.Other annexes of gas meter, flow meter can apply the present invention without the need to doing larger change, and applicability is strong.
Claims (3)
1. the oval diaphragm of core of membrane type gas meter, it is characterized in that whole diaphragm to make elliptical cross section cone diaphragm, identical with former general diaphragm height, area is identical, and then volume is identical, makes each solid of revolution accumulated amount of obtaining identical.
2. the oval diaphragm of core of membrane type gas meter according to claim 1, it is characterized in that described elliptical cross section cone diaphragm, position, intermediate portion is provided with fixing parallel plate hole and flap axle bed hole.
3. the oval diaphragm of core of membrane type gas meter according to claim 1, is characterized in that described elliptical cross section cone diaphragm, is provided with the multiple holes be fixed on core body around it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191196.1A CN104864930A (en) | 2015-04-22 | 2015-04-22 | Elliptical diaphragm for machine core of diaphragm type gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191196.1A CN104864930A (en) | 2015-04-22 | 2015-04-22 | Elliptical diaphragm for machine core of diaphragm type gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104864930A true CN104864930A (en) | 2015-08-26 |
Family
ID=53910921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510191196.1A Pending CN104864930A (en) | 2015-04-22 | 2015-04-22 | Elliptical diaphragm for machine core of diaphragm type gas meter |
Country Status (1)
| Country | Link |
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| CN (1) | CN104864930A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645062A (en) * | 2004-01-19 | 2005-07-27 | 小野田元 | Diaphragm gas meter |
| CN201569459U (en) * | 2009-12-28 | 2010-09-01 | 重庆市山城燃气设备有限公司 | Novel film-type gas meter |
| US20120164018A1 (en) * | 2009-08-03 | 2012-06-28 | Zhejiang University | Metering pump with special-shaped cavity |
| CN203479347U (en) * | 2013-09-27 | 2014-03-12 | 浙江松川仪表科技股份有限公司 | Measuring chamber of film-type gas meter |
| CN204612775U (en) * | 2015-04-22 | 2015-09-02 | 沈阳市航宇星仪表有限责任公司 | The oval diaphragm of core of membrane type gas meter |
-
2015
- 2015-04-22 CN CN201510191196.1A patent/CN104864930A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645062A (en) * | 2004-01-19 | 2005-07-27 | 小野田元 | Diaphragm gas meter |
| US20120164018A1 (en) * | 2009-08-03 | 2012-06-28 | Zhejiang University | Metering pump with special-shaped cavity |
| CN201569459U (en) * | 2009-12-28 | 2010-09-01 | 重庆市山城燃气设备有限公司 | Novel film-type gas meter |
| CN203479347U (en) * | 2013-09-27 | 2014-03-12 | 浙江松川仪表科技股份有限公司 | Measuring chamber of film-type gas meter |
| CN204612775U (en) * | 2015-04-22 | 2015-09-02 | 沈阳市航宇星仪表有限责任公司 | The oval diaphragm of core of membrane type gas meter |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |