CN2674422Y - Methane pressure meter - Google Patents
Methane pressure meter Download PDFInfo
- Publication number
- CN2674422Y CN2674422Y CN 200320113334 CN200320113334U CN2674422Y CN 2674422 Y CN2674422 Y CN 2674422Y CN 200320113334 CN200320113334 CN 200320113334 CN 200320113334 U CN200320113334 U CN 200320113334U CN 2674422 Y CN2674422 Y CN 2674422Y
- Authority
- CN
- China
- Prior art keywords
- joint
- housing
- pressure
- casing
- translucent cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a pressure meter for measuring methane or micro-pressure gas pressure, comprising a casing, a translucent cover, an index dial, an indicating needle and a gear transmission mechanism for controlling the indicating needle. A joint is equipped in the casing, and the joint is fixedly equipped with a pressure sensing device and the gear transmisson mechanism. One end of the joint is equipped with hole through one side of the casing, and the other end of the joint is fixed to the bottom of the casing through a screw. The pressure meter has the advantages of simple structure, convenient production, high measurement precision, stable performance, reliable installation, corrosion prevention and long service life, and not only can be used for methane pressure measurements, but also for the micro-pressure measurements in other fields.
Description
Technical field
The utility model belongs to monitoring technical field, relates in particular to a kind of measurement biogas or the tonometric tensimeter of micro pressure gas.
Background technology
At present, the tensimeter volume that the domestic and international application micro pressure gas is measured is all bigger, usually adopt U type glass tube or water column liquid level manometer during the biogas gaging pressure, when reading the pressure indicating value, need read the liquid level difference of U type glass tube two pipes, the value of reading is not directly perceived, and volume is big, its length is one meter to two meters long, and glass tube is easily broken in transportation.A kind of minute-pressure biogas pressure table in the market, its pressure sensor part adopts rubber diaphragm, and diaphragm area is little, measuring accuracy is not high, its accuracy class does not reach manometric the lowest class.Utility model patent number 02230152.6, though overcome the shortcoming of rubber diaphragm precision deficiency, but directly be fixed on running part on the plastic casing, make before the instrument mounting cup and mounting cup after deviation of reading very big, influence the accuracy of calibration, the micro-deformation of housing just causes the variation of instrument indication value.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of precision height, stable performance, reliable, corrosion-resistant, the long-lived biogas pressure table of installation is provided.
The purpose of this utility model is achieved in that and comprises housing, is installed in translucent cover on the housing, is installed in the scale in housing and the translucent cover and the gear drive of pointer and steering needle action, in housing, be provided with joint, on joint, be fixed with pressure transducer and the gear drive that acts on mutually with pressure transducer respectively.One end of joint passes the hole that housing one side has and is packed in this hole, and the other end is fixed on the bottom surface of housing by screw.Adopt the assembling form of annular convex-concave buckle between translucent cover and the housing.
The utlity model has simple in structure, easily manufactured, measuring accuracy is high, stable performance, reliable, corrosion-resistant, the long-lived advantage of installation, except that being used for biogas pressure measures, can also be used for the micro pressure measuring in other field.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a right view of the present utility model.
Fig. 3 is a joint design synoptic diagram of the present utility model.
Fig. 4 is the assembling synoptic diagram between translucent cover of the present utility model and the housing.
Embodiment
As shown in Figure 1, 2, the utility model comprises housing 1, be installed in translucent cover 7 on the housing, be installed in the scale 6 in housing and the translucent cover and the gear drive 4 of pointer 5 and steering needle 5 actions, in housing, be provided with joint 2, be fixed with pressure transducer 3 and the gear drive 4 that acts on mutually with pressure transducer 3 on joint respectively, housing 1 is provided with hangers 8.
Shown in Fig. 1,3, the utility model is provided with joint 2 in housing, on joint, be fixed with pressure transducer 3 and the gear drive 4 that acts on mutually with pressure transducer 3 respectively, joint 2 one ends pass the hole that housing 1 one sides have and are packed in this hole, and the other end is fixed on the bottom surface of housing 1 by screw.Joint 2, pressure transducer 3 and gear drive 4 are coupled to a firm integral body, after the formation gauge pressure transmission system, are installed in the housing 1.The displacement energy that pressure transducer 3 bears the above-below direction that produces behind the pressure changes the rotation of needle pivot exactly into by gear transmission structure 4, show corresponding pressure by pointer 5, can avoid the caused indicating value variation phenomenon of housing distortion, can also avoid before the translucent cover and indicating value variation serious drawback greatly behind the translucent cover.
As shown in Figure 4, adopt the assembling form of annular convex-concave buckle between translucent cover 7 of the present utility model and the housing 1, easy for installation, avoid falling to cover phenomenon in the instrument transportation, to guarantee the service property (quality) of biogas pressure table.
Claims (3)
1, a kind of biogas pressure table, comprise housing (1), be installed in translucent cover (7) on the housing, be installed in the gear drive (4) that scale (6) in housing and the translucent cover and pointer (5) and steering needle (5) move, it is characterized in that: in housing, be provided with joint (2), on joint, be fixed with pressure transducer (3) and the gear drive (4) that acts on mutually with pressure transducer (3) respectively.
2, a kind of biogas pressure table according to claim 1 is characterized in that: an end of joint (2) passes the hole that housing (1) one side has and is packed in this hole, and the other end is fixed on the bottom surface of housing (1) by screw.
3, a kind of biogas pressure table according to claim 1 is characterized in that: the assembling form that adopts annular convex-concave buckle between translucent cover (7) and the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113334 CN2674422Y (en) | 2003-12-02 | 2003-12-02 | Methane pressure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320113334 CN2674422Y (en) | 2003-12-02 | 2003-12-02 | Methane pressure meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674422Y true CN2674422Y (en) | 2005-01-26 |
Family
ID=34475036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320113334 Expired - Fee Related CN2674422Y (en) | 2003-12-02 | 2003-12-02 | Methane pressure meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674422Y (en) |
-
2003
- 2003-12-02 CN CN 200320113334 patent/CN2674422Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |