CN2483695Y - Sampling apparatus used for megnatic sensed pulse signal of counter in gas meter (gas, natural gas) - Google Patents
Sampling apparatus used for megnatic sensed pulse signal of counter in gas meter (gas, natural gas) Download PDFInfo
- Publication number
- CN2483695Y CN2483695Y CN 01206898 CN01206898U CN2483695Y CN 2483695 Y CN2483695 Y CN 2483695Y CN 01206898 CN01206898 CN 01206898 CN 01206898 U CN01206898 U CN 01206898U CN 2483695 Y CN2483695 Y CN 2483695Y
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- CN
- China
- Prior art keywords
- counter
- gas
- wheel
- tongue tube
- sensor
- 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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- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
A gas meter (coal gas, natural gas) counter magnetic sensing pulse signal sampling device comprises a counter wheel, a counter sensor and a tile-shape permanent magnet; the tile-shape permanent magnet (2) is embedded on the counter wheel (8), the counter sensor (4) is arranged on a mechanical counter frame (1), the double dry reed tube structure which comprises a dry reed tube K <1> (3) and a dry reed tube K <2> (5) is applied; a resistor R <1> (12) is in parallel connection on the dry reed tube K <1> (3), a resistor R <2> (13) is in parallel connection on the dry reed tube K <2> (5); the switch pulse and the triggering pulse are sent out by a three-core cable (7) through the B, C end and the A, C end of the wire; the utility model is suitable for sampling and transmitting metering pulse of various pipe gas meters (coal gas, natural gas).
Description
The utility model relates to the gas meter, flow meter sensor for countering, particularly a kind of gas meter, flow meter (coal gas, natural gas) counter magnetic sensing pulse signal sampling device.
The counting gauge outfit of common gas meter in the prior art just shows by digit wheel to consume continuous data, can not transmit switching value pulse remote transfer signal.Present domestic great majority adopt active devices (as Hall element, photoelectric device etc.) sampling gauge outfit pulse signals, and this active device complex circuit designs, power supply power consumption are higher relatively, can not well satisfy the technical requirement of practical product.
The purpose of this utility model is: a kind of gas meter, flow meter (coal gas, natural gas) counter magnetic sensing pulse signal sampling device is provided, and it adopts double dry-reed pipe structure, tongue tube K
1Be used for the counting sampling, tongue tube K
2Be used for anti-external magnetic field and disturb, be applicable to the sampling and the transmission of gasometer of pipeline gas metrical pulse, realize the purpose that outdoor centralized intelligence is checked meter.
Formation of the present utility model: by the mechanical counter framework, counter wheel, the counting wheel shaft, power wheel, power axle, sensor for countering and watt shape permanent magnet are formed, counter wheel (8) and power wheel (10) are installed in the mechanical counter framework (1) by counting wheel shaft (9) and power axle (11) respectively, power wheel (10) and counter wheel (8) cooperatively interact, go up setting-in watt shape permanent magnet (2) at counter wheel (8), go up installation sensor for countering shell (6) at the mechanical counter framework (1) of counter wheel (8) one sides, counter sensor (4) is arranged in counter sensor shell (6), adopt the double dry-reed pipe structure, the leading portion of sensor for countering (4) is tongue tube K
1(3), back segment is tongue tube K
2(5), at tongue tube K
1(3) go up parallel resistance R
1(12), at tongue tube K
2(5) go up parallel resistance R
2(13), by lead B, C end and A, C end, draw by three core cables (7).
Tongue tube K
1(3) be in watt shape permanent magnet (2) magnetic field force on the counter wheel (8) tongue tube K
2(5) be in outside the magnetic field force.
Compared with the prior art, the utility model tongue tube sampling pulse signal is to utilize the magnetic field force of permanent magnetic element to realize that the reed in the tongue tube is a normally open, adhesive conducting when magnetic field force, disconnect when losing magnetic field force, the every switch of tongue tube once is a pulse.
Adopt dry reed-pipe structure, tongue tube K
1Be used for the counting sampling, tongue tube K
2Being used for anti-external magnetic field disturbs.Just often, tongue tube K
1In running order, and tongue tube K
2Do not work, be in open-circuit condition, just closed when external magnetic field, so just play preventive effect.
The burn out detection loop, resistance all in parallel is specifically designed to burn out detection on every tongue tube.Break in case the pulse that links to each other with A, B, C end transmits lead, then by special circuit identification (this part with the matching used data acquisition circuit of sensor in, and show separately independently).Thereby can monitor artificial broken string or unexpected broken string effectively.If parallel resistance not, then when the reed of tongue tube was in conducting or disconnects, sampling resistor can only recognize conducting or disconnection, can't judge the on off operating mode of connection lead on the tongue tube.And after the parallel resistance, because R
1, R
2Resistance value is very big, does not influence the work of tongue tube, and lead and resistance are the series circuit of a closure, in case open circuit, just can out of trim.So specialized circuitry just can accurately be discerned.
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is that the A-A of accompanying drawing 1 looks and cuts open figure;
Accompanying drawing 3 is sensor for countering PCB figure;
Accompanying drawing 4 is sense samples schematic diagrams.
Embodiment of the present utility model: shown in accompanying drawing 1, accompanying drawing 2, counter wheel (8) and power wheel (10) are installed in the mechanical counter framework (1) by counting wheel shaft (9) and power axle (11) respectively, power wheel (10) and counter wheel (8) cooperatively interact, go up setting-in watt shape permanent magnet (2) at counter wheel (8), go up installation sensor for countering shell (6) at the mechanical counter framework (1) of counter wheel (8) one sides, sensor for countering (4) is arranged in sensor for countering shell (6), and the leading portion of sensor for countering (4) is tongue tube K
1(3), back segment is tongue tube K
2(5), and by three core cables (7) draw.
As shown in Figure 3, be PCB figure, tongue tube K1 (3) goes up parallel resistance R
1(12), outwards send switching pulse by lead B, C end: tongue tube K
2(5) go up parallel resistance R
2(13), outwards send trigger pulse by lead A, C end.
As shown in Figure 4, tongue tube K
1(3) and resistance R
1(12) parallel connection, and by lead connection B, C end, tongue tube K
2(5) and resistance R
2(13) parallel connection, and by lead connection A, C end.
Counting principle of work: 1, when the counter wheel (8) that is embedded with watt shape permanent magnet (2) rotates, whenever circle, then tongue tube K
1(3) just break-make once, and by lead B, C the end outwards send switching pulse, go round and begin again.When a watt shape permanent magnet (2) forwards to from tongue tube K with counter wheel (8)
1(3) during closest approach, tongue tube K
1(3) magnetic field force induced attraction conducting, when watt shape permanent magnet (2) with counter wheel (8) when departing from closest approach, tongue tube K
1(3) disconnect owing to losing magnetic field force.
2, tongue tube K
2(5) be in outside the magnetic field force, no matter a watt shape permanent magnet (2) forwards any position to counter wheel (8), tongue tube K
2(5) all be failure to actuate, as external disturbance magnetic field near the time, so tongue tube K
2(5) closed conducting, and outwards send trigger pulse by lead A, C end, thus trigger dedicated line by connecting lead.
Claims (2)
1, a kind of gas meter, flow meter (coal gas, natural gas) counter magnetic sensing pulse signal sampling device, by the mechanical counter framework, counter wheel, the counting wheel shaft, power wheel, power axle, sensor for countering and watt shape permanent magnet are formed, counter wheel (8) and power wheel (10) are installed in the mechanical counter framework (1) by counting wheel shaft (9) and power axle (11) respectively, power wheel (10) and counter wheel (8) cooperatively interact, it is characterized in that: go up setting-in watt shape permanent magnet (2) at counter wheel (8), go up installation counter sensor shell (6) at the mechanical counter framework (1) of counter wheel (8) one sides, sensor for countering (4) is arranged in counter sensor shell (6), adopt the double dry-reed pipe structure, the leading portion of sensor for countering (4) is tongue tube K
1(3), back segment is tongue tube K
2(5), at tongue tube K
1(3) go up parallel resistance R
1(12), at tongue tube K
2(5) go up parallel resistance R
2(13), by lead B, C end and A, C end, draw by three core cables (7).
2, gas meter, flow meter according to claim 1 (coal gas, natural gas) counter magnetic sensing pulse signal sampling device is characterized in that: tongue tube K
1(3) be in watt shape permanent magnet (2) magnetic field force on the counter wheel (8) tongue tube K
2(5) be in outside the magnetic field force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206898 CN2483695Y (en) | 2001-07-18 | 2001-07-18 | Sampling apparatus used for megnatic sensed pulse signal of counter in gas meter (gas, natural gas) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01206898 CN2483695Y (en) | 2001-07-18 | 2001-07-18 | Sampling apparatus used for megnatic sensed pulse signal of counter in gas meter (gas, natural gas) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2483695Y true CN2483695Y (en) | 2002-03-27 |
Family
ID=33627450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01206898 Expired - Fee Related CN2483695Y (en) | 2001-07-18 | 2001-07-18 | Sampling apparatus used for megnatic sensed pulse signal of counter in gas meter (gas, natural gas) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2483695Y (en) |
-
2001
- 2001-07-18 CN CN 01206898 patent/CN2483695Y/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 |