CN201463953U - Film type gas meter with dramatic turning volume - Google Patents
Film type gas meter with dramatic turning volume Download PDFInfo
- Publication number
- CN201463953U CN201463953U CN2009201282211U CN200920128221U CN201463953U CN 201463953 U CN201463953 U CN 201463953U CN 2009201282211 U CN2009201282211 U CN 2009201282211U CN 200920128221 U CN200920128221 U CN 200920128221U CN 201463953 U CN201463953 U CN 201463953U
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- gas meter
- arc
- plate
- shift fork
- crank
- 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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Abstract
The utility model relates to a film type gas meter with dramatic turning volume, wherein two revolute pairs on a movement of the gas meter are hinged with a crankpin of a crank adjusting mechanism through a connecting rod, the crank adjusting mechanism is a dynamic adjusting mechanism adopting an arc heating bimetallic strip, which comprises an indicator disc, a shifting fork and an arc heating bimetallic strip, wherein the shifting fork is rotatablely connected with the indicator disc through a locating pin, the crankpin is clamped in a first fork port of the shifting fork, the crankpin is matched with an orbit groove on the indicator disc in a sliding mode, the arc heating bimetallic strip half surrounds the external side of the edge of the indicator disc, and forms a gap space with the crank surface of the edge of the indicator disc, one end of the arc bimetallic strip is inserted into the second fork port of the shifting fork, and the other end is fixedly connected with a support for installing the heating bimetallic strip. The crank adjusting device of the utility model adopts the dynamic adjusting mechanism of the arc heating bimetallic strip, the turning volume of the gas meter is changed through the change of the temperature, the measure of the gas meter under different temperature is consistent, and the measuring error of the gas meter is reduced.
Description
Technical field
The utility model relates to the diaphragm gas meter field, particularly a kind of diaphragm gas meter with dynamic rotation volume.
Background technology
Diaphragm gas meter is a kind of gas consumption measuring instrument, and gas meter, flow meter utilizes the motion on the movement to do periodic duty.When measuring, gas meter, flow meter require the gas volume of each work period discharge certain, and like this could statistical measurement.But the volume of combustion gas varies with temperature and changes, and the gaseous mass that gas meter, flow meter is discharged is certain and under the temperature different situations, according to the equation of gas state (P
0V
0/ T
0=P
1V
1/ T
1) know that its volume of gas of the same race of discharging equal in quality under the uniform pressure different temperatures is different, the gas volume of equal in quality will dwindle when temperature reduces, and the relative density of gas will increase; The gas volume of equal in quality will expand when temperature raises, the relative density of gas will reduce, and combustion gas is to adopt volume metering in the reality, with seasonal variations temperature contrast larger area, its combustion gas variable density is big, the metering difference that causes Various Seasonal under the combustion gas service condition same case, this just need be converted to and under the same temperature volume metering be carried out in combustion gas and just have reference role, the reference temperature of China's gas metering is (20 ± 2) ℃, that is to say with (20 ± 2) ℃ gas volume that following gas meter, flow meter was discharged in the unit interval as the reference value, the gas volume that wants to make gas meter, flow meter to measure in the following unit interval of any temperature in certain operating temperature range is converted to reference temperature following time and is consistent substantially, utilizes the variation of crank length to change the revolution volume of gas meter, flow meter.At present, the general crank mechanism that adopts fixing revolution volume of diaphragm gas meter, gas meter, flow meter is when temperature variation, metering has certain deviation under the metering of gas meter, flow meter and the base condition, if when differing greatly with season or environment for use temperature variation, the metering of gas meter, flow meter can produce bigger departing from respect to the benchmark metering, causes user and gas company to produce the bigger conflict of interest.
Summary of the invention
The purpose of this utility model provides a kind of diaphragm gas meter with dynamic rotation volume, the regulating mechanism of crank of gas meter, flow meter is for adopting the dynamic adjustments mechanism of arc thrermostatic bimetal-plate, gas meter, flow meter varies with temperature and changes gas meter, flow meter revolution volume, it is consistent that gas meter, flow meter is measured under different temperatures, reduces the error in dipping of gas meter, flow meter.
The purpose of this utility model is achieved in that the movement of gas meter, flow meter is provided with two revolute pairs of being made up of connecting rod and rocking arm, two revolute pairs are fixedlyed connected with two rotating shafts on the movement by rocking arm, the rotating shaft lower end is connected with flap, flap cooperates by the chute of slide post with movement measuring room interior diaphragm group, described two revolute pairs are hinged by the crank pin of connecting rod and regulating mechanism of crank, described regulating mechanism of crank is for adopting the dynamic adjustments mechanism of arc thrermostatic bimetal-plate, dynamic adjustments mechanism comprises needle dial, shift fork, the arc thrermostatic bimetal-plate, on the needle dial one-body molded have extend respectively the needle dial edge be used to the journal stirrup of shift fork is installed and is used to install the support of thrermostatic bimetal-plate, the register pin that the positioning end of described shift fork is provided with by the bottom inserts shift fork pilot hole on the journal stirrup that is used for installing shift fork and forms and be rotatably connected, be respectively equipped with first prong and second prong on the free end of described shift fork, the crank pin of regulating mechanism of crank is stuck in first prong, the crank pin bottom is inserted to form in the rail groove that is provided with on the needle dial and is slidingly matched, described arc thrermostatic bimetal-plate semi-surrounding is in the outside, needle dial edge, has clearance space between arc thrermostatic bimetal-plate and the needle dial edge curved surface, one end of arc thrermostatic bimetal-plate inserts in second prong of shift fork, and the other end is fixedlyed connected with the support that is used to install thrermostatic bimetal-plate.
Described arc thrermostatic bimetal-plate is U-shaped or circular arc.
Described rail groove eccentric extension of after radially extend at the needle dial center, turning back from the needle dial edge.
Owing to adopt technique scheme, two revolute pairs of movement are hinged by the crank pin of connecting rod and regulating mechanism of crank, regulating mechanism of crank is for adopting the dynamic adjustments mechanism of arc thrermostatic bimetal-plate, the register pin that the positioning end of shift fork is provided with by the bottom inserts shift fork pilot hole on the journal stirrup that is used for installing shift fork and forms and be rotatably connected, and first prong on the shift fork free end is slidingly matched by the formation of the rail groove on a crank pin and the needle dial; One thrermostatic bimetal-plate is convexly curved semi-surrounding in the outside, needle dial edge, and has clearance space between the needle dial edge curved surface, one end of arc thrermostatic bimetal-plate inserts in second prong of shift fork, and the other end is fixedlyed connected with the support that is used to install thrermostatic bimetal-plate.Employing is equipped with the diaphragm gas meter of regulating mechanism of crank, utilization is the thrermostatic bimetal-plate of curved shape and regulates the radius of control crank pin apart from the staight needle dish centre of gyration, the thrermostatic bimetal-plate control shift fork rotational angle of arc-shaped bend, both helped the making of arc thrermostatic bimetal-plate, dimensional accuracy can be guaranteed, can reduce cost of manufacture again.When temperature changes, regulating mechanism of crank is started working, the arc thrermostatic bimetal-plate is acted upon by temperature changes and produces the structural change expand with heat and contract with cold and form accurate crooked radian and change, the crooked radian variation of arc thrermostatic bimetal-plate promotes shift fork again and rotates, shift fork orders about crank pin again and moves along the guide-track groove on the needle dial in rotation process, thereby realize the accurate adjusting of crank length, the change of crank pin position acts on rocking arm by connecting rod; rocking arm drive rotating shaft is rotated; rotating shaft changes the limit of sports record position of diaphragm group by flap; reach the purpose that changes gas meter, flow meter revolution volume; regulating mechanism of crank can be regulated the volume metering that be converted under the same reference temperature with the gas metering under the different temperatures like this; the assurance gas meter, flow meter can both be realized accurate measurement at the different temperatures environment, reduces the error in dipping of gas meter, flow meter.Gas meter, flow meter varies with temperature and has the function of self-control metering, the revolution volume of gas meter, flow meter is varied with temperature and changes, and is in a kind of dynamic adjustments process, thereby reaches the accurate measurement of the combustion gas under the different temperatures.The utility model only needs to install the regulating mechanism of crank of the dynamic adjustments mechanism that adopts the arc thrermostatic bimetal-plate on gas meter movement, make simply, and cost is low.
Description of drawings
Fig. 1 is a synoptic diagram of the present utility model;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the crank mechanism synoptic diagram;
Fig. 4 is the synoptic diagram of flap-rotating shaft-rocker arm body;
Fig. 5 is the structural representation of crank pin;
Fig. 6 is the structural representation of shift fork;
Fig. 7 is that the B of Fig. 6 is to view;
In the accompanying drawing, 1 is revolute pair, and 2 is crank pin, 2a, 2b, 2c are annular slot, and 3 is needle dial, and 4 is shift fork, 4a is the journal stirrup that is used to install shift fork, and 5 is the arc thrermostatic bimetal-plate, and 6 is measuring room, 7 for being used to install the support of thrermostatic bimetal-plate, and 8 is rocking arm, the 8a connecting rod, 9 are rotating shaft, and 10 is flap, and 11 is slide post, 12 is chute, and 13 is movement, and 14 is mounting hole, 15 is eccentric orfice, and 16 is first prong, and 16a is second prong, 17 is the diaphragm group, 18 is rail groove, and 19 is jack, and 19a is a projection, 20 is register pin, and 20a is the anticreep barb.
Embodiment
Referring to figs. 1 through Fig. 7, gas meter movement 13 is provided with two revolute pairs of being made up of connecting rod 8a and rocking arm 81, two revolute pairs 1 are fixedlyed connected with two rotating shafts 9 on the movement by rocking arm 8, rotating shaft 9 lower ends are connected with horizontally disposed flap 10, flap 10 cooperates with the chute 12 of movement measuring room 6 interior diaphragm groups 17 by slide post 11, when crank length changes, the crank pin change in location, changing the limit of sports record position of diaphragm group then by rocking arm-rotating shaft-flap mechanism. described two revolute pairs 1 are hinged by the crank pin 2 of connecting rod 8a and regulating mechanism of crank, described regulating mechanism of crank is for adopting the dynamic adjustments mechanism of arc thrermostatic bimetal-plate, dynamic adjustments mechanism comprises needle dial 3, shift fork 4, arc thrermostatic bimetal-plate 5, needle dial 3 centers are provided with mounting hole 14, the mounting hole both sides are respectively equipped with scale and eccentric orfice 15, needle dial is by the camshaft secure fit of mounting hole 14 with the movement at center, eccentric orfice 15 on the needle dial is equipped with the pointer of regulating error. and one-body molded on the described needle dial 3 have the described journal stirrup 4a that is used to install shift fork of support that the journal stirrup 4a and being used to that is used to shift fork is installed that extends the needle dial edge respectively installs thrermostatic bimetal-plate 7. to be provided with the shift fork pilot hole, the register pin 20 that the positioning end of described shift fork 4 is provided with by the bottom inserts shift fork pilot hole on the journal stirrup 4a that is used for installing shift fork and forms and be rotatably connected, register pin 20 bottoms of described shift fork 4 are provided with anticreep barb 20a, register pin adopts the cross split pin, cross opening compression when inserting the shift fork pilot hole, insert back recovery of elasticity original state, can not withdraw from after making register pin insert in the shift fork pilot hole. be respectively equipped with first prong 16 and the second prong 16a on the free end of described shift fork 4, first prong 16 of shift fork 4, the second prong 16a is U type prong, the bend of the second prong 16a is provided with jack 19, being provided with two protruding 19a. one crank pins 2 that are used to clamp the arc thrermostatic bimetal-plate in the second prong 16a is stuck in first prong 16, crank pin 2 bottoms are inserted to form in the rail groove 18 that is provided with on the needle dial 3 and are slidingly matched, rail groove 18 radially extends to the needle dial center of circle from needle dial 3 edges and retrodeviates the extension of turning back from the center of circle. and described crank pin 2 has three annular slots, first annular slot 2a from top to bottom is used for the connecting rod 8a coordination hinge with movement, second annular slot 2b is used for first prong, 16 snap-fit with shift fork, the 3rd annular slot 2c is used for being slidingly matched with the rail groove 18 of needle dial, crank pin can be slided at the drive lower edge of shift fork rail groove, being used to change the radius of crank. a thrermostatic bimetal-plate is convexly curved semi-surrounding in the outside, needle dial 3 edges, described arc thrermostatic bimetal-plate 5 brake formings are U-shaped or circular arc, has clearance space between arc thrermostatic bimetal-plate 5 and the needle dial 3 edge curved surfaces, this clearance space is the free space distance of arc thrermostatic bimetal-plate 5 distortion, the curved surface that makes the distortion of arc thrermostatic bimetal-plate 5 can not be subjected to needle dial 3 is interfered. and an end of described arc thrermostatic bimetal-plate 5 inserts among the second prong 16a of shift fork 4, clamp by being provided with the projection that is used to clamp bimetallic strip in the second prong 16a, the other end is connected by screw retention with the support 7 that is used to install thrermostatic bimetal-plate, make arc thrermostatic bimetal-plate 5 under temperature variations, the flexibility of arc thrermostatic bimetal-plate 5 changes, outwards strut or inwardly contraction, be used to regulate the radius of crank.
Installation process of the present utility model: shift fork 4 clearance fit are used to install in the shift fork pilot hole of journal stirrup 4a of shift fork in needle dial, utilize the anticreep overhead kick locking of register pin to prevent to come off, second annular slot 2b with crank pin 2 snaps in first prong 16 of shift fork then, rotating shift fork is slidingly fitted in the rail groove 18 of needle dial the 3rd annular slot 2c of crank pin 2, arc thrermostatic bimetal-plate 5 one ends are stuck in the second prong 16a of shift fork, and the other end of arc thrermostatic bimetal-plate is screwed the support 7 that is used to install thrermostatic bimetal-plate at needle dial 3.Needle dial is installed on the camshaft of movement by mounting hole 14 cooperations that the center is provided with, and with pointer cam and needle dial is fastened as one then, carries out the connecting rod 8a of movement and first annular slot 2a of crank pin 2 hinged at last.
The course of work of the present utility model: after the gas meter movement assembling finishes, form two measuring rooms in the gas meter movement, the diaphragm group is divided into two each measuring room again, form measurement chamber, when gas promotion diaphragm group is reciprocating, the diaphragm group will circulate and promote the interior gas discharge of measurement chamber, in this process, because the slide post of flap is to be sleeved in the chute of diaphragm group, can drive flap-rotating shaft-rocking arm motion during the motion of diaphragm group, and the limit of sports record position of rocking arm is subjected to the restriction of crank pin, so conversely when the crank pin position changes, that is to say that crank pin acted on flap-rotating shaft-rocker arm body by connecting rod when crank length changed, thereby change the limit of sports record position of diaphragm group. when temperature changes, regulating mechanism of crank is started working, when temperature raises, the arc thrermostatic bimetal-plate will produce distortion and drive crank pin by shift fork and move outside needle dial, and promptly crank length increases; When temperature reduces, the arc thrermostatic bimetal-plate will produce distortion and drive crank pin by shift fork and move in needle dial, and promptly crank length reduces, the change of crank length, by the limit of sports record position of flap-rotating shaft-rocking arm change diaphragm group, realize changing the purpose of gas meter, flow meter revolution volume.
Claims (3)
1. diaphragm gas meter with dynamic rotation volume, the movement of gas meter, flow meter is provided with two revolute pairs of being made up of connecting rod and rocking arm, two revolute pairs are fixedlyed connected with two rotating shafts on the movement by rocking arm, the rotating shaft lower end is connected with flap, flap cooperates by the chute of slide post with movement measuring room interior diaphragm group, it is characterized in that: described two revolute pairs are hinged by the crank pin of connecting rod and regulating mechanism of crank, described regulating mechanism of crank is for adopting the dynamic adjustments mechanism of arc thrermostatic bimetal-plate, dynamic adjustments mechanism comprises needle dial, shift fork, the arc thrermostatic bimetal-plate, on the needle dial one-body molded have extend respectively the needle dial edge be used to the journal stirrup of shift fork is installed and is used to install the support of thrermostatic bimetal-plate, the register pin that the positioning end of described shift fork is provided with by the bottom inserts shift fork pilot hole on the journal stirrup that is used for installing shift fork and forms and be rotatably connected, be respectively equipped with first prong and second prong on the free end of described shift fork, the crank pin of regulating mechanism of crank is stuck in first prong, the crank pin bottom is inserted to form in the rail groove that is provided with on the needle dial and is slidingly matched, described arc thrermostatic bimetal-plate semi-surrounding is in the outside, needle dial edge, has clearance space between arc thrermostatic bimetal-plate and the needle dial edge curved surface, one end of arc thrermostatic bimetal-plate inserts in second prong of shift fork, and the other end is fixedlyed connected with the support that is used to install thrermostatic bimetal-plate.
2. the diaphragm gas meter with dynamic rotation volume according to claim 1 is characterized in that: described arc thrermostatic bimetal-plate is U-shaped or circular arc.
3. the diaphragm gas meter with dynamic rotation volume according to claim 1 is characterized in that: described rail groove eccentric extension of turning back after radially extend at the needle dial center from the needle dial edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201282211U CN201463953U (en) | 2009-07-29 | 2009-07-29 | Film type gas meter with dramatic turning volume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201282211U CN201463953U (en) | 2009-07-29 | 2009-07-29 | Film type gas meter with dramatic turning volume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201463953U true CN201463953U (en) | 2010-05-12 |
Family
ID=42391304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201282211U Expired - Fee Related CN201463953U (en) | 2009-07-29 | 2009-07-29 | Film type gas meter with dramatic turning volume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201463953U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907479A (en) * | 2010-06-29 | 2010-12-08 | 重庆市山城燃气设备有限公司 | Fine adjustment mechanism for crank of diaphragm gas meter |
| CN102261938A (en) * | 2011-06-16 | 2011-11-30 | 成都秦川科技发展有限公司 | Heat value correction type diaphragm gas meter |
| CN106092274A (en) * | 2016-05-27 | 2016-11-09 | 中国计量大学 | A kind of diaphragm gas meter rapid verification method based on auto-correlation algorithm |
| CN106153158A (en) * | 2016-06-20 | 2016-11-23 | 浙江大学城市学院 | The detection method of diaphragm gas meter of based on image acquisition gyration period and device |
| CN107560678A (en) * | 2017-09-15 | 2018-01-09 | 成都秦川物联网科技股份有限公司 | Temperature conversion device and gas meter, flow meter |
| CN109870207A (en) * | 2019-03-22 | 2019-06-11 | 杭州良辰电子商务有限公司 | A kind of gas meter |
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
-
2009
- 2009-07-29 CN CN2009201282211U patent/CN201463953U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907479A (en) * | 2010-06-29 | 2010-12-08 | 重庆市山城燃气设备有限公司 | Fine adjustment mechanism for crank of diaphragm gas meter |
| CN101907479B (en) * | 2010-06-29 | 2012-07-25 | 重庆市山城燃气设备有限公司 | Fine adjustment mechanism for crank of diaphragm gas meter |
| CN102261938A (en) * | 2011-06-16 | 2011-11-30 | 成都秦川科技发展有限公司 | Heat value correction type diaphragm gas meter |
| CN106092274A (en) * | 2016-05-27 | 2016-11-09 | 中国计量大学 | A kind of diaphragm gas meter rapid verification method based on auto-correlation algorithm |
| CN106153158A (en) * | 2016-06-20 | 2016-11-23 | 浙江大学城市学院 | The detection method of diaphragm gas meter of based on image acquisition gyration period and device |
| CN107560678A (en) * | 2017-09-15 | 2018-01-09 | 成都秦川物联网科技股份有限公司 | Temperature conversion device and gas meter, flow meter |
| CN107560678B (en) * | 2017-09-15 | 2023-06-16 | 成都秦川物联网科技股份有限公司 | Temperature conversion device and gas meter |
| CN109870207A (en) * | 2019-03-22 | 2019-06-11 | 杭州良辰电子商务有限公司 | A kind of gas meter |
| CN109870207B (en) * | 2019-03-22 | 2020-12-04 | 海南轩达检验检测服务有限公司 | Gas meter |
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING QIANWEI INSTRUMENT CO., LTD. Free format text: FORMER NAME: CHONGQING QIANWEI METER FACTORY |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 401121 Chongqing New District, Mount Huangshan Road, No. 69 Patentee after: Chongqing Qianwei Instrument Co., Ltd. Address before: 401121 Chongqing New District, Mount Huangshan Road, No. 69 Patentee before: Chongqing Qianwei Meter Factory |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20140729 |
|
| EXPY | Termination of patent right or utility model |