CN103471677B - Transmitting device for diaphragm gas meter - Google Patents
Transmitting device for diaphragm gas meter Download PDFInfo
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- CN103471677B CN103471677B CN201310453245.5A CN201310453245A CN103471677B CN 103471677 B CN103471677 B CN 103471677B CN 201310453245 A CN201310453245 A CN 201310453245A CN 103471677 B CN103471677 B CN 103471677B
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- rotating shaft
- gas meter
- transmitting device
- cam
- projection
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Abstract
The invention discloses a transmitting device for a diaphragm gas meter. The transmitting device comprises a frame which is mounted on a diaphragm gas meter shell, wherein a rotating shaft and a mechanical counter are arranged on the frame; the rotating shaft is driven to rotate by gas flow; the mechanical counter is used for counting the flow of gas; a mechanical micro-switch is mounted on the frame; and a driving device is driven by the rotating shaft to drive a contact point of the micro-switch to transmit an on-off counting signal. The transmitting device for the diaphragm gas meter has a simple structure; the stable and reliable signal output of the gas meter can be realized by only additionally mounting the driving device and the micro-switch on the original rotating shaft, without changing an existing mechanical counter device of the gas meter; a cam and a shaft sleeve, as the driving device, are made of polytetrafluoroethylene plastics; the minimum resistance of the rotating shaft is brought by the special structure of the driving device; the usage count exceeds one million times; and after being tested, the transmitting device can meet the national standard of minimum measuring accuracy of the gas meter.
Description
Technical field
The invention 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 object of the invention 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, technical scheme of the present invention 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 present invention 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 present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is circular arc bulge-structure schematic diagram of the present invention;
Fig. 3 is the bulge-structure schematic diagram of two circular arc docking of the present invention;
Fig. 4 is that inwall of the present invention is provided with spiral closed curve groove axle sleeve structure schematic diagram;
Fig. 5 is the axle sleeve structure schematic diagram of one end of the present invention sealing;
Fig. 6 is that axle sleeve wall of the present invention 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, and when selecting the rotating shaft of ten counter wheels drivings, owing to there being the existence of one decimal place, 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 (3)
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;
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;
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.
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, is characterized in that, the material of described drive unit is poly fourfluoroplastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453245.5A CN103471677B (en) | 2013-09-29 | 2013-09-29 | Transmitting device for diaphragm gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453245.5A CN103471677B (en) | 2013-09-29 | 2013-09-29 | Transmitting device for diaphragm gas meter |
Publications (2)
| Publication Number | Publication Date |
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| CN103471677A CN103471677A (en) | 2013-12-25 |
| CN103471677B true CN103471677B (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310453245.5A Active CN103471677B (en) | 2013-09-29 | 2013-09-29 | Transmitting device for diaphragm gas meter |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568083B (en) * | 2015-01-22 | 2018-04-20 | 成都秦川物联网科技股份有限公司 | Mechanical counter and the method using its measurement gas meter, flow meter data-collection durability |
| CN105509833B (en) * | 2016-01-11 | 2018-08-28 | 成都秦川物联网科技股份有限公司 | Gas meter, flow meter shaft transmission |
| CN108180958B (en) * | 2018-03-01 | 2023-12-01 | 北京优耐燃气仪表有限公司 | Gas meter counting mechanism and gas meter |
| CN109099978B (en) * | 2018-07-10 | 2020-12-08 | 河北华通燃气设备有限公司 | Novel graphite sampling machine electrical conversion device |
| CN108689082A (en) * | 2018-07-25 | 2018-10-23 | 宁夏国励汽车动力科技有限公司 | Conical head cross type signal generator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2470798Y (en) * | 2001-01-21 | 2002-01-09 | 重庆前卫仪表厂 | Double axle sleeve signalling gasometer |
| CN201050997Y (en) * | 2007-07-03 | 2008-04-23 | 潘挺宇 | A film gas meter |
| CN101514913B (en) * | 2009-04-08 | 2012-06-27 | 丹东思凯电子发展有限责任公司 | Industrial membrane type gas meter with inlaid step motor valve |
| DE102010047680A1 (en) * | 2010-10-06 | 2012-04-12 | Hydrometer Gmbh | gas Meter |
| CN202403753U (en) * | 2012-01-05 | 2012-08-29 | 天信仪表集团有限公司 | Bidirectional counter |
| CN203479351U (en) * | 2013-09-29 | 2014-03-12 | 北京双得利科工贸有限责任公司 | Signal sending device of membrane type gas meter |
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| CN103471677A (en) | 2013-12-25 |
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Denomination of invention: Transmitting device for diaphragm gas meter Effective date of registration: 20141218 Granted publication date: 20140903 Pledgee: Beijing Shixin Renda microfinance Limited by Share Ltd Pledgor: Beijing Sangry Science & Trade Co., Ltd. Registration number: 2014990001095 |
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