CN201903422U - Double-pointer memory type gas pressure gauge - Google Patents
Double-pointer memory type gas pressure gauge Download PDFInfo
- Publication number
- CN201903422U CN201903422U CN2010206768727U CN201020676872U CN201903422U CN 201903422 U CN201903422 U CN 201903422U CN 2010206768727 U CN2010206768727 U CN 2010206768727U CN 201020676872 U CN201020676872 U CN 201020676872U CN 201903422 U CN201903422 U CN 201903422U
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- pointer
- memory
- pressure
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- real
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- Expired - Fee Related
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Abstract
The utility model relates to a double-pointer memory type gas pressure gauge which consists of a real-time pressure measurement part and a memory pressure measurement part, wherein the real-time pressure measurement part is consistent with a common pressure gauge; a check valve is arranged between an air inlet pipe of the memory pressure measurement part and a lower C-shaped Bourdon tube; and a sealing screw is arranged between the check valve and the lower C-shaped Bourdon tube. Under the action of leading the fluid to unidirectionally flow by utilizing the check valve, the backflow of the gas in the C-shaped Bourdon tube can be avoided, so that the purpose of keeping the peak value pressure is achieved. The double-pointer memory type gas pressure gauge basically solves the problem that the peak value pressure can not be recorded in the pressure measurement process and ensures the measurement accuracy of gas pressure in the coal and gas prominent identification.
Description
Technical field
The utility model relates to two pointer memory-type gas pressure gauges, is particularly useful for indicating and writing down in the pressure measurement process pressure of coal-bed gas.
Background technology
At present, known tensimeter structure by pressure guiding system (comprising joint, Bourdon tube, current limliting screw etc.), gear drive, look counting apparatus and shell is formed.By the elastic deformation of the sensitive element Bourdon tube in showing, the throw-over gear by movement in the table conducts to pointer with pressure deformation again, causes that pointer rotates to show pressure.But because the cranny development of country rock with the restriction of the sealing effectiveness of boring, often can pass through the crack pressure release after pressure reaches maximal value, it is less than normal than actual pressure to cause resulting pressure to look number, the outstanding evaluation work of coal supply and gas brings hidden danger in the pressure measurement process.
Summary of the invention
The purpose of this utility model is the weak point that overcomes in the prior art, provide a kind of compact conformation, easy to operate, can show the two accurately pointer memory-type gas pressure tables of gas pressure, pressure measurement in real time.
For achieving the above object, of the present utility model pair of pointer memory-type gas pressure table, comprise joint, be located at the last draft tube and the lower inlet duct that link to each other side by side with joint in the dial plate, be provided with non-return valve in the lower inlet duct, last draft tube and lower inlet duct are connected with C type Bourdon tube and following C type Bourdon tube side by side through connector, the connector bottom is provided with △ type sealed screw, the head of last C type Bourdon tube, following C type Bourdon tube is respectively equipped with top guide bar and lower guide rod, and top guide bar and lower guide rod are hinged with the last plectrum and the following plectrum that are fixed on the dial plate middle part respectively; Last plectrum connects real-time needle pivot, and following plectrum connects the memory pointer axle, and needle pivot is provided with real-time pointer in real time, and the memory pointer axle is provided with and memory pointer, and dial plate is provided with real-time pointer and the shared scale of memory pointer.
Described non-return valve is that little resistance speed is closed non-return valve; Described △ type sealed screw is made with brass.
Beneficial effect: the utility model can show gas real-time pressure and surge pressure easily in coal-mine gas piezometry process, simple in structure.The sealed screw head adopts special shape, needs specific purpose tool just can open, and has avoided artificial deliberately pressure release.The tensimeter pressure peak that can't under inclement condition situation under the coal mine, occur in the accurate recording pressure measurement process, the utility model provides a kind of tensimeter, this tensimeter can not only show the real-time pressure of gas pressure, and the pressure peak that occurs in the energy accurate recording pressure measurement process, it is simple in structure, and pressure measurement is accurate, and is easy to operate, effective, have utility model widely.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the utility model A-A sectional view.
Among the figure: 1-joint, the last draft tube of 2-, 3-lower inlet duct, the 4-gas admittance valve that commutates, 5-connector, 6-△ type sealed screw, the last C type of 7-Bourdon tube, C type Bourdon tube under the 8-, 9-top guide bar, the 10-lower guide rod, the last plectrum of 11-, plectrum under the 12-, the real-time needle pivot of 13-, 14-memory pointer axle, the real-time pointer of 15-, the 16-memory pointer, the 17-dial plate.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in Figure 1, of the present utility model pair of pointer memory-type gas pressure table, mainly comprise real-time pressure measurement and memory pressure measurement two partly, the part of pressure measurement in real time is consistent with ordinarily manometer, and the memory pressure measurement partly comprises joint 1, is located at the last draft tube 2 and the lower inlet duct 3 that link to each other side by side with joint 1 in the dial plate 17, is provided with non-return valve 4 in the lower inlet duct 3, non-return valve 4 adopts little resistance speed to close non-return valve, inside nominal diameter 0.8mm, opening pressure 0.1bar, connected mode is welding.Last draft tube 2 is connected with C type Bourdon tube 7 and following C type Bourdon tube 8 with lower inlet duct 3 side by side through connector 5, last C type Bourdon tube 7 communicates with last draft tube 2, following C type Bourdon tube 8 communicates with lower inlet duct 3, connector 5 bottoms are provided with △ type sealed screw 6, and △ type sealed screw 6 usefulness brass are made.Last C type Bourdon tube 7, down the head of C type Bourdon tube 8 is respectively equipped with top guide bar 9, lower guide rod 10, and top guide bar 9, lower guide rod 10 are hinged with the last plectrum 11 that is fixed on dial plate 17 middle parts, time plectrum 12 respectively; Last plectrum 11 connects real-time needle pivot 13, following plectrum 12 connects memory pointer axle 14, memory pointer axle 14 connecting links pass real-time needle pivot 13 centers, on the needle pivot 13 real-time pointer 15 is housed in real time, be equipped with on the memory pointer axle 14 and memory pointer 16, be furnished with the shared scale of real-time pointer 15 and memory pointer 16 on the dial plate 17.
The course of work: tighten sealed screw 6 earlier before the pressure measurement, make the memory pressure measurement partly have memory function.When methane gas enters tensimeter, divide two-way to enter the pressure measurement part, a route of memory pressure measurement part is in the effect of non-return valve 4, when gas pressure reduces, non-return valve 4 moves rapidly, and the gas in the following C type Bourdon tube 8 can not reflux the pressure in the time of still keeping peak value; Pressure measurement by gas in sealed screw 6 free lists, makes tensimeter be returned to original state after finishing, and finishes a pressure measurement.
Claims (3)
1. two pointer memory-type gas pressure table, it is characterized in that: it comprises joint (1), be located at the last draft tube (2) and the lower inlet duct (3) that link to each other side by side with joint (1) in the dial plate (17), be provided with non-return valve (4) in the lower inlet duct (3), last draft tube (2) is connected with C type Bourdon tube (7) and following C type Bourdon tube (8) with lower inlet duct (3) side by side through connector (5), connector (5) bottom is provided with △ type sealed screw (6), the head of last C type Bourdon tube (7) and following C type Bourdon tube (8) is respectively equipped with top guide bar (9) and lower guide rod (10), and top guide bar (9) and lower guide rod (10) are hinged with the last plectrum (11) and the following plectrum (12) that are fixed on dial plate (17) middle part respectively; Last plectrum (11) connects real-time needle pivot (13), following plectrum (12) connects memory pointer axle (14), needle pivot (13) is provided with real-time pointer (15) in real time, memory pointer axle (14) is provided with and memory pointer (16), and dial plate (17) is provided with real-time pointer (15) and the shared scale of memory pointer (16).
2. according to claim 1 pair of pointer memory-type gas pressure table, it is characterized in that: described non-return valve (4) closes non-return valve for little resistance speed.
3. according to claim 1 pair of pointer memory-type gas pressure table, it is characterized in that: described △ type sealed screw (6) is made with brass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206768727U CN201903422U (en) | 2010-12-23 | 2010-12-23 | Double-pointer memory type gas pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206768727U CN201903422U (en) | 2010-12-23 | 2010-12-23 | Double-pointer memory type gas pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201903422U true CN201903422U (en) | 2011-07-20 |
Family
ID=44274016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206768727U Expired - Fee Related CN201903422U (en) | 2010-12-23 | 2010-12-23 | Double-pointer memory type gas pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201903422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308249A (en) * | 2013-06-26 | 2013-09-18 | 姚朝阳 | Pressure gauge |
| EP2947443A1 (en) * | 2014-05-22 | 2015-11-25 | Hans Sasserath GmbH & Co. KG. | Manometer system |
-
2010
- 2010-12-23 CN CN2010206768727U patent/CN201903422U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308249A (en) * | 2013-06-26 | 2013-09-18 | 姚朝阳 | Pressure gauge |
| EP2947443A1 (en) * | 2014-05-22 | 2015-11-25 | Hans Sasserath GmbH & Co. KG. | Manometer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |