CN203479351U - Signal sending device of membrane type gas meter - Google Patents
Signal sending device of membrane type gas meter Download PDFInfo
- Publication number
- CN203479351U CN203479351U CN201320605828.0U CN201320605828U CN203479351U CN 203479351 U CN203479351 U CN 203479351U CN 201320605828 U CN201320605828 U CN 201320605828U CN 203479351 U CN203479351 U CN 203479351U
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- rotating shaft
- axle sleeve
- gas meter
- projection
- transmitting device
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Abstract
The utility model discloses a signal sending device of a membrane type gas meter. The signal sending device comprises a machine frame for being installed on a membrane type gas meter shell, a rotating shaft driven by gas flowing to rotate and a mechanical counter for counting gas flow are arranged on the machine frame, the machine frame is provided with a mechanical type micro-switch, and the rotating shaft drives one driving device to push the micro-switch to send on-off counting signals in a contact mode. The signal sending device is simple in structure, and stable and reliable signal output of the gas meter can be achieved only by adding one driving device and one micro-switch into an original rotating shaft without changing a mechanical counting device of an existing gas meter. A cam and a shaft sleeve of the driving device are made of Teflon plastics, the resistance to the rotating shaft is minimum through the special structure of the Teflon plastics, and the number of using times of the rotating shaft exceeds one million, and it is proved that the national standard of minimum measuring accuracy of the gas meter can be met.
Description
Technical field
The utility model belongs to gas meter, flow meter technical field, be particularly related to a kind of diaphragm gas meter transmitting device, described device is installed a cam on driving gearshaft, and triggering microswitch stable with cam sends count signal, realizes the reliable and stable signal output of gas meter, flow meter.
Background technology
The current develop rapidly along with electronic technology, gas meter, flow meter has all been widely used electronic technology and Wireless Networking lift-off technology, make combustion gas charge no longer need to get home to table look-up, and the automatic transmitting of gas meter, flow meter alerting signal, manpower and materials have been saved, what the counting assembly of gas meter, flow meter used at present is all electromagnetic type or photoelectric counting technology, electromagnetic type is to utilize tongue tube or Hall switch technology that a permanent magnetic steel is set on the driving runner of gas meter, flow meter, a magnetic induction switch (Hall switch is set in frame, tongue tube), runner rotates and drives permanent magnetic steel to drive magnetic induction switch output count signal to counter-controller, but this kind of telltale is easily subject to the interference of surrounding magnetic field, especially easily being subject to some interference of having a mind to of making angry steathily fakes, there is error in counting and actual consumption, there is counting and be less than actual consumption, make gas enterprise and user produce dispute, to gas enterprise, cause damage.Another kind of photoelectric counting is to utilize light emitting diode and photoelectric sensor to count, the impact that same photoelectric counting also can be subject to surrounding enviroment can produce miscount, and power consumption is larger, affect the serviceable life of gas meter, flow meter battery, yet gas meter, flow meter is again a safety standard requires high product, any change all will meet safe standard, and therefore, the problems referred to above are perplexing gas enterprise always.
Summary of the invention
The purpose of this utility model is to propose a kind of diaphragm gas meter transmitting device technical scheme, described device is installed a cam on driving gearshaft, triggering microswitch stable with cam sends count signal, realize the stable counting of gas meter, flow meter, simple in structure, safe and reliable, cheap, very effectively overcome the problems referred to above.
To achieve these goals, the technical solution of the utility model is: diaphragm gas meter transmitting device, comprise: one for being arranged on the frame on diaphragm gas watch shell, in described frame, be provided with by fuel gas flow and drive the rotating shaft of rotating and the mechanical counter of a counting gas flow; It is characterized in that: a mechanical type microswitch is installed in described frame, and described rotating shaft drives a drive unit to promote the count signal that break-make is sent in microswitch contact.
Scheme is further: described rotating shaft is the rotating shaft that the rotating shaft of driving device rolling counters forward or a position of mechanical counter or any position counter wheel afterwards drive, and drive unit is enclosed within rotating shaft.
Scheme is further: described drive unit is a cam, and described cam is enclosed within described rotating shaft and rotates with rotating shaft, and the projection of cam promotes the count signal that break-make is sent in microswitch contact.
Scheme is further: described projection is the arc convex on cam disk edge, arc convex and disk border smooth connection, and the height of projection is 1/3 to 1/2 of disc radius.
Scheme is further: described projection is the projection that is symmetrical in two circular arcs docking in the cam disk center of circle, and the height of projection is 1/3 to 1/2 of cam disc radius of circle.
Scheme is further: described drive unit is an axle sleeve, axle sleeve be enclosed within described rotating shaft and radial location with rotating shaft rotation, rotating shaft is rotated and is driven axle sleeve to move up and down to promote the count signal that break-make is sent in microswitch contact.
Scheme is further: the trepanning inwall of described axle sleeve is provided with spiral closed curve groove, and described rotating shaft is provided with the projection of fit, and when rotating shaft is rotated, the rotational slide in groove of rotating shaft projection drives axle sleeve to move up and down.
Scheme is further: described axle sleeve is the axle sleeve of one end sealing, described axle sleeve blind end inwall plane is lower fluctuating in a circumferential direction, the end face on described rotating shaft top departs from center and is provided with projection, when rotating shaft is rotated, the head face hump on described rotating shaft top is done circumferential slippage along axle sleeve blind end inwall plane and is driven axle sleeve to move up and down.
Scheme is further: described axle sleeve wall bottom is the inclined-plane of a dipping and heaving along circumference, in described rotating shaft, there is the corresponding projection in inclined-plane with axle sleeve wall bottom dipping and heaving, when rotating shaft is rotated, the described rotating shaft projection corresponding with the inclined-plane of axle sleeve wall bottom dipping and heaving moves in a circle and drives axle sleeve to move up and down.
Scheme is further: the material of described drive unit is poly fourfluoroplastics.
The utility model compared with prior art tool has the following advantages: simple in structure, without the mechanical counting device of changing existing gas meter, flow meter, only need in original rotating shaft, install a drive unit additional, the reliable and stable signal output that a microswitch just can be realized gas meter, flow meter is installed, drive unit cam and axle sleeve adopt poly fourfluoroplastics, its distinctive structure brings the resistance minimum of rotating shaft, can meet after tested the national standard of gas meter, flow meter minimum measurement accuracy.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model circular arc bulge-structure schematic diagram;
Fig. 3 is the bulge-structure schematic diagram of two circular arc docking of the utility model;
Fig. 4 is that the utility model inwall is provided with spiral closed curve groove axle sleeve structure schematic diagram;
Fig. 5 is the axle sleeve structure schematic diagram of the utility model one end sealing;
Fig. 6 is that the utility model axle sleeve wall bottom is the ramp structure schematic diagram of a dipping and heaving along circumference.
Embodiment
The structure of diaphragm gas meter transmitting device, referring to Fig. 1, comprising: one for being arranged on the frame 1 on diaphragm gas watch shell, is provided with by fuel gas flow and drives the rotating shaft 2 of rotating and the mechanical counter 3 of a counting gas flow in described frame; Wherein, a mechanical type microswitch 4 is installed in described frame, described rotating shaft drives a drive unit 5 to promote the count signal that break-make is sent in microswitch contact.Described mechanical type microswitch can be the microswitch of having bought on market, and the microswitch that also can be comprised of two elastic copper sheets, is fixed on the position approaching with rotating shaft by described microswitch with wiring board 6.This kind of structure is the improvement of carrying out on the basis that does not change original structure substantially, first this kind of structure do not produce and electrically contacts therefore security and be guaranteed, yet in rotating shaft, apply resistance, will inevitably affect the sensitivity of diaphragm gas meter, guarantee that its sensitivity will be in the stressed minimum of wanting of consideration rotating shaft, therefore, described in the present embodiment the material selection of drive unit be poly fourfluoroplastics.The rotating shaft of embodiment can be by fuel gas flow, directly to be driven the rotating shaft of rotation, be the rotating shaft of driving device rolling counters forward, drive unit is enclosed within rotating shaft, resistance can act directly in initial rotating shaft like this, certainly have another kind of mode and reduce resistance, i.e. described rotating shaft is the rotating shaft that a position of mechanical counter or any position counter wheel afterwards drive.The best is the rotating shaft of selecting ten counter wheels to drive, when select ten counter wheels to drive rotating shaft time, owing to there being after radix point the existence of, its resistance is gone back to initial end by being significantly smaller than 1/10th of former resistance, negligible.Below the embodiment of several drive unit preferred versions.
Embodiment 1:
The present embodiment is a kind of preferred version to above-mentioned diaphragm gas meter transmitting device structure: in described structure, as shown in Figure 1: described drive unit is a cam 5-1, described cam is enclosed within described rotating shaft and rotates with rotating shaft, and the projection of cam promotes the count signal that break-make is sent in microswitch contact.
In embodiment, as shown in Figure 2, the projection of described cam is the arc convex 4-1-2 on cam disk 5-1-1 edge, arc convex and disk border smooth connection 5-1-3, and the height of projection is 1/3 to 1/2 of disc radius.
In embodiment, its projection can also be another kind of mode, as shown in Figure 3: described projection is the projection that is symmetrical in two circular arc 5-1-4 docking in the cam disk center of circle, and the height of projection is 1/3 to 1/2 of cam disc radius of circle.
What the present embodiment was used is the projection that is symmetrical in two circular arcs docking in the cam disk center of circle, claims that in the radius of two circular arcs in the cam disk center of circle be 2.5 times of disc radius, and embodiment cam disc radius is 1.5cm.The height of projection is 1/2 of cam disc radius of circle.
Embodiment 2:
The present embodiment is the another kind of preferred version to above-mentioned diaphragm gas meter transmitting device structure: in described structure, as shown in Figure 3, described drive unit is an axle sleeve 5-2, axle sleeve is enclosed within described rotating shaft and radial location is not rotated with rotating shaft, and rotating shaft is rotated and driven axle sleeve to move up and down the count signal that break-make is sent in promotion microswitch contact.
Rotating shaft is rotated and is driven axle sleeve to move up and down several modes:
One of mode wherein: as shown in Figure 4: the trepanning inwall of described axle sleeve is provided with closed curve groove 5-2-1, described rotating shaft is provided with the protruding 2-1 of fit, when rotating shaft is rotated, the rotational slide in groove of rotating shaft projection drives axle sleeve to move up and down, described closed curve is a kind of closed curve that declines that rises to, and the ascending angle of curve is 10 degree to 20 degree angles.
Two of mode wherein: as shown in Figure 5: described axle sleeve is the axle sleeve of one end sealing, described axle sleeve blind end inwall plane 5-2-2 is lower fluctuating in a circumferential direction, the end face on described rotating shaft top departs from center and is provided with protruding 2-2, when rotating shaft is rotated, the head face hump on described rotating shaft top is done circumferential slippage along axle sleeve blind end inwall plane and is driven axle sleeve to move up and down.
Three of mode wherein: as shown in Figure 6: described axle sleeve wall bottom is the inclined-plane 5-2-3 of a dipping and heaving along circumference, in described rotating shaft, there is the corresponding protruding 2-3 in inclined-plane with axle sleeve wall bottom dipping and heaving, when rotating shaft is rotated, the described rotating shaft projection corresponding with the inclined-plane of axle sleeve wall bottom dipping and heaving moves in a circle and drives axle sleeve to move up and down, wherein, axle sleeve wall bottom is 10 degree along the rising start angle on the inclined-plane of circumference dipping and heaving.
Claims (10)
1. diaphragm gas meter transmitting device, comprising: one for being arranged on the frame on diaphragm gas watch shell, is provided with by fuel gas flow and drives the rotating shaft of rotating and the mechanical counter of a counting gas flow in described frame; It is characterized in that: a mechanical type microswitch is installed in described frame, and described rotating shaft drives a drive unit to promote the count signal that break-make is sent in microswitch contact.
2. diaphragm gas meter transmitting device according to claim 1, is characterized in that, described rotating shaft is a rotating shaft of the rotating shaft of driving device rolling counters forward or a position of mechanical counter or any position counter wheel driving afterwards.
3. diaphragm gas meter transmitting device according to claim 1 and 2, is characterized in that, described drive unit is a cam, and described cam is enclosed within described rotating shaft and rotates with rotating shaft, and the projection of cam promotes the count signal that break-make is sent in microswitch contact.
4. diaphragm gas meter transmitting device according to claim 3, is characterized in that, described projection is the arc convex on cam disk edge, arc convex and disk border smooth connection, and the height of projection is 1/3 to 1/2 of disc radius.
5. diaphragm gas meter transmitting device according to claim 3, is characterized in that, described projection is the projection that is symmetrical in two circular arc docking in the cam disk center of circle, and the height of projection is 1/3 to 1/2 of cam disc radius of circle.
6. diaphragm gas meter transmitting device according to claim 1 and 2, it is characterized in that, described drive unit is an axle sleeve, axle sleeve is enclosed within described rotating shaft and radial location is not rotated with rotating shaft, and rotating shaft is rotated and driven axle sleeve to move up and down the count signal that break-make is sent in promotion microswitch contact.
7. diaphragm gas meter transmitting device according to claim 6, it is characterized in that, the trepanning inwall of described axle sleeve is provided with closed curve groove, and described rotating shaft is provided with the projection of fit, when rotating shaft is rotated, the rotational slide in groove of rotating shaft projection drives axle sleeve to move up and down.
8. diaphragm gas meter transmitting device according to claim 6, it is characterized in that, described axle sleeve is the axle sleeve of one end sealing, described axle sleeve blind end inwall plane is lower fluctuating in a circumferential direction, the end face on described rotating shaft top departs from center and is provided with projection, when rotating shaft is rotated, the head face hump on described rotating shaft top is done circumferential slippage along axle sleeve blind end inwall plane and is driven axle sleeve to move up and down.
9. diaphragm gas meter transmitting device according to claim 6, it is characterized in that, described axle sleeve wall bottom is the inclined-plane of a dipping and heaving along circumference, in described rotating shaft, there is the corresponding projection in inclined-plane with axle sleeve wall bottom dipping and heaving, when rotating shaft is rotated, the described rotating shaft projection corresponding with the inclined-plane of axle sleeve wall bottom dipping and heaving moves in a circle and drives axle sleeve to move up and down.
10. diaphragm gas meter transmitting device according to claim 1 and 2, the material that it is characterized in that described drive unit is poly fourfluoroplastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605828.0U CN203479351U (en) | 2013-09-29 | 2013-09-29 | Signal sending device of membrane type gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320605828.0U CN203479351U (en) | 2013-09-29 | 2013-09-29 | Signal sending device of membrane type gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203479351U true CN203479351U (en) | 2014-03-12 |
Family
ID=50227664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320605828.0U Withdrawn - After Issue CN203479351U (en) | 2013-09-29 | 2013-09-29 | Signal sending device of membrane type gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203479351U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471677A (en) * | 2013-09-29 | 2013-12-25 | 北京双得利科工贸有限责任公司 | Transmitting device for diaphragm gas meter |
| CN108444578A (en) * | 2018-07-02 | 2018-08-24 | 威海拙诚燃气安全设备有限公司 | A kind of on-line monitoring method of diaphragm gas meter metering performance |
-
2013
- 2013-09-29 CN CN201320605828.0U patent/CN203479351U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471677A (en) * | 2013-09-29 | 2013-12-25 | 北京双得利科工贸有限责任公司 | Transmitting device for diaphragm gas meter |
| CN108444578A (en) * | 2018-07-02 | 2018-08-24 | 威海拙诚燃气安全设备有限公司 | A kind of on-line monitoring method of diaphragm gas meter metering performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20140903 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140312 Effective date of abandoning: 20140903 |
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| RGAV | Abandon patent right to avoid regrant |