CN202092709U - Measurement data acquisition device for mechanical gas meter - Google Patents
Measurement data acquisition device for mechanical gas meter Download PDFInfo
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- CN202092709U CN202092709U CN2011200859430U CN201120085943U CN202092709U CN 202092709 U CN202092709 U CN 202092709U CN 2011200859430 U CN2011200859430 U CN 2011200859430U CN 201120085943 U CN201120085943 U CN 201120085943U CN 202092709 U CN202092709 U CN 202092709U
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- data acquisition
- measurement data
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- code wheel
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Abstract
The utility model relates to a measurement data acquisition device for a mechanical gas meter header. Aiming to the disadvantage that the measurement data acquisition device for the mechanical gas meter header in the prior art is difficult to adapt to the meter header structure, the utility model discloses the measurement data acquisition device for the mechanical gas meter header. The utility model adopts the technical scheme that the measurement data acquisition device comprises a mechanical contact switch, a counting code wheel and a driving mechanism, wherein the driving mechanism and the counting code wheel are in linkage and drive the mechanical contact switch to act; the driving mechanism comprises a cam synchronously rotating with the counting code wheel and a lever; the lever is fixed through a supporting shaft, one end of the lever slides on the cam, and the other end of the lever drives the mechanical contact switch to act; and the cam adopts an involute stepping wheel. On the basis that the characteristics that the mechanical contact switch is not impacted by the electromagnetic field and the counting is accurate are fully exerted, the space occupied by the measurement data acquisition device is greatly reduced, and the measurement data acquisition device has the characteristics of simple and compact structure and is especially suitable for a leather diaphragm gas meter header with narrow internal space.
Description
Technical field
The utility model relates to combustible gas metering arrangement, particularly a kind of mechanical gas gauge outfit measurement data acquisition device.
Background technology
Mechanical gas gauge outfit, its counting principle are to utilize the mobile drive count code wheel rotation of combustion gas to count.Realize automatic data logging, need convert the rotation of counting code wheel to electric signal.Except the accuracy that must guarantee the gauge outfit data acquisition owing to be the micro device that embeds gauge outfit inside, also should with existing gauge head structure compatibility, can not disturb its normal counting and demonstration, must accomplish compact conformation, reliable in action, and also low-power consumption also is the index that must reach.Mechanical gas gauge outfit basic structure comprises some (general more than 6) count code wheel disc, fuel gas flow drive the counting code wheel and rotate, and the individual count code wheel rotates according to certain rotating ratio, and gas consumption is counted and display digit.At present, the data collector of Automatic meter reading system generally is made of sensor, microprocessor and peripheral circuit thereof.Sensor carries out data acquisition to the rotation of counting code wheel, and with the data input microprocessor of gathering, writes down, adds up and coding transmission by microprocessor.With the gauge outfit data collector of switch with mechanical contact as sensor, the count code wheel of selecting a certain position in the counting code wheel of combustion gas gauge outfit is as driving wheel, utilize the conversion of mechanical action driving switch contact, the electric signal of output reflection continuous data, can carry out long-distance transmissions and storage through data processing, have the advantages that conversion reliably, is not subjected to the interference of electromagnetic field, favored in combustion gas gauge outfit data collecting field.Because existing gas meter, flow meter header structure is still lack of standardization, the structural parameters disunity, the mechanical gas gauge outfit measurement data acquisition device of prior art is difficult to adapt to the present situation of combustion gas gauge outfit, particularly existing epithelium formula combustion gas gauge outfit, the inner space is narrow and small, and common sensor is difficult to install.
The utility model content
Technical problem to be solved in the utility model, be exactly at the very difficult gauge head structure that adapts to of the mechanical gas gauge outfit measurement data acquisition device of prior art, the narrow and small shortcoming in aluminum hull epithelium formula combustion gas gauge outfit inner space particularly, a kind of mechanical gas gauge outfit measurement data acquisition device is provided, can be used for the narrower and small combustion gas gauge outfit in inner space.
The utility model solve the technical problem, the technical scheme that adopts is, mechanical gas gauge outfit measurement data acquisition device, comprise switch with mechanical contact, counting code wheel and gear train, described gear train and interlock of counting code wheel and the action of driving device contact switch, it is characterized in that, described gear train comprises cam and the lever that rotates synchronously with described counting code wheel, described lever is fixed by a back shaft, described lever one end slides on cam, the action of other end driving device contact switch, described cam is involute urve step wheel.The utility model utilizes the rotation of combustion gas gauge outfit count code wheel, and data acquisition is finished in the action of driving device contact switch, and its special gear train configuration can make the switch with mechanical contact accumbency install, and reduces the locus that sensor occupies.And lever motion drives by the spring in the switch with mechanical contact (or shell fragment) and cam, do not need extra back-moving spring etc., further simplifies the structure to have reduced sensor and take up space, and these are all significant for the devices that embed gauge outfit.The cam of the involute urve step wheel shape that the utility model adopts can reduce the interference that the counting code wheel is rotated in the power transmission process, can not influence measuring accuracy, and can the driving device contact switch action exactly at step point place.
Further, described back shaft is vertical with described lever and parallel with the count code wheel shaft.The configuration of this gear train can make full use of the gauge outfit space, is fit to very much the narrow and small combustion gas gauge outfit in space.
Preferably, described involute urve step wheel is a global facility with described counting code wheel.The integral structure of this counting code wheel can adopt the Shooting Technique one-shot forming, reduces manufacturing cost and difficulty.
Further, described involute urve step wheel is embedded in the described counting code wheel.To count code wheel and cut into two open partly along circumference, and embed involute urve step wheel betwixt, also be a kind of scheme that realizes counting code wheel and the combination of involute urve step wheel.
The preferred mechanical contact switch is a single-pole double-throw switch (SPDT), is the fine motion switch with mechanical contact of ZIPPY/DW as model.
The beneficial effects of the utility model are, be not subjected on the interference of electromagnetic field, the counting characteristic of accurate basis giving full play to switch with mechanical contact, greatly reduced the space that data collector occupies, have simple in structure, compact characteristics, be fit to very much embed the operation of combustion gas gauge outfit, be particularly suitable for the narrow and small epithelium formula combustion gas gauge outfit in inner space.
Description of drawings
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the counting code wheel left view of embodiment 1;
The circuit theory diagrams of Fig. 3 embodiment 1;
Fig. 4 is the counting code wheel left view of embodiment 2.
Embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
The utility model utilizes the rotation of combustion gas gauge outfit count code wheel, and measurement data acquisition is finished in the action of driving device contact switch.Gear train of the present utility model comprises involute urve step wheel and lever, and lever is fixed on the back shaft, and the one end slides on involute urve step wheel, the action of other end driving device contact switch.Involute urve step wheel rotates synchronously with the counting code wheel, and continuous data is gathered in the action of driving device contact switch.Gear train configuration of the present utility model can make the switch with mechanical contact accumbency install, and reduces the locus that sensor occupies.And lever motion drives by the spring in the switch with mechanical contact (or shell fragment) and cam, do not need extra back-moving spring etc., further simplifies the structure, and reduced sensor and taken up space.Selecting for use of involute urve step wheel, lever is evenly distributed in the counting code wheel rotating process the resistance of counting code wheel, can reduce the interference that the counting code wheel is rotated, can not influence measuring accuracy, and can be at step point place exactly the driving device contact switch finish level conversion.
Embodiment 1
Referring to Fig. 1, this routine mechanical gas gauge outfit measurement data acquisition device comprises switch with mechanical contact 32, counting code wheel 1 and the gear train that is made of involute urve step wheel 2 and lever 3.Involute urve step wheel 2 adopts Shooting Technique to make a global facility with counting code wheel 1, rotates synchronously under the effect of fuel gas flow.Lever 3 is fixed on the back shaft 30, can rotate around back shaft 30.The rotation axis 10 of counting code wheel 1 is parallel with back shaft 30, when counting code wheel 1 direction of arrow in Fig. 1 was rotated, lever 3 one end A slided on involute urve step wheel, and other end B pushes the button 31 of switch with mechanical contact 32, the collection of continuous data is finished in 32 actions of driving device contact switch.In this example, switch with mechanical contact 32 accumbency are installed on the count code wheel frame 40, and its button 31 direction of motion are vertical with the rotation axis 10 of counting code wheel 1.This configuration relation has reduced the space that sensor occupies to greatest extent, has made full use of the inner space of combustion gas gauge outfit.It is the single-pole double-throw (SPDT) microswitch of ZIPPY/DW that this routine switch with mechanical contact 32 is selected model for use, this type switch is because special structure, in the level conversion process, has the state of determining very much, there is not the unsettled critical conditions of level state, unless be subjected to the driving of lever, the level state of moving contact k output can not change.Fig. 3 shows this routine circuit structure, two stationary contact m, n of switch with mechanical contact connect high level and low level respectively, (model is: high impedance I/O mouth MSP430F123) is connected its moving contact k with microprocessor, along with the action of switch, moving contact k rotates the signal of the level variation of all numbers to MSP430F123 output representative counting code wheel.
Other structures of this example are identical with embodiment 1, and different is that this routine involute urve step wheel 2 is embedded in the middle of the described counting code wheel 1.This also is a global facility, can regard as and cut into counting code wheel 1 open two partly along circumference, embeds the parts that involute urve step wheel 2 is formed betwixt.As shown in Figure 4,11 parts of counting code wheel are processed with driving cog, are used for transferring power, and 12 parts of counting code wheel are printed with numeral, are used for video data.
Claims (6)
1. mechanical gas gauge outfit measurement data acquisition device, comprise switch with mechanical contact, counting code wheel and gear train, described gear train and interlock of counting code wheel and the action of driving device contact switch, it is characterized in that, described gear train comprises cam and the lever that rotates synchronously with described counting code wheel, and described lever is fixed by a back shaft, and described lever one end slides on cam, the action of other end driving device contact switch, described cam is involute urve step wheel.
2. mechanical gas gauge outfit measurement data acquisition device according to claim 1 is characterized in that described back shaft is vertical with described lever and parallel with the count code wheel shaft.
3. mechanical gas gauge outfit measurement data acquisition device according to claim 1 is characterized in that, described involute urve step wheel is a global facility with described counting code wheel.
4. mechanical gas gauge outfit measurement data acquisition device according to claim 1 is characterized in that, described involute urve step wheel is embedded in the described counting code wheel.
5. according to any described mechanical gas gauge outfit measurement data acquisition device of claim 1～4, it is characterized in that described switch with mechanical contact is a single-pole double-throw switch (SPDT).
6. mechanical gas gauge outfit measurement data acquisition device according to claim 5 is characterized in that described single-pole double-throw switch (SPDT) model is ZIPPY/DW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200859430U CN202092709U (en) | 2011-03-29 | 2011-03-29 | Measurement data acquisition device for mechanical gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200859430U CN202092709U (en) | 2011-03-29 | 2011-03-29 | Measurement data acquisition device for mechanical gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202092709U true CN202092709U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200859430U Expired - Lifetime CN202092709U (en) | 2011-03-29 | 2011-03-29 | Measurement data acquisition device for mechanical gas meter |
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| CN (1) | CN202092709U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330099A (en) * | 2014-09-05 | 2015-02-04 | 浙江利尔达物联网技术有限公司 | Inductance sensing type data acquisition apparatus and acquisition method |
| CN108180958A (en) * | 2018-03-01 | 2018-06-19 | 北京优耐燃气仪表有限公司 | A kind of gas meter counting mechanism and gas meter, flow meter |
| CN110651170A (en) * | 2017-06-19 | 2020-01-03 | 松下知识产权经营株式会社 | Gas meter |
-
2011
- 2011-03-29 CN CN2011200859430U patent/CN202092709U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330099A (en) * | 2014-09-05 | 2015-02-04 | 浙江利尔达物联网技术有限公司 | Inductance sensing type data acquisition apparatus and acquisition method |
| CN104330099B (en) * | 2014-09-05 | 2016-08-24 | 浙江利尔达物联网技术有限公司 | A kind of inductance vicarious data acquisition unit and acquisition method thereof |
| CN110651170A (en) * | 2017-06-19 | 2020-01-03 | 松下知识产权经营株式会社 | Gas meter |
| CN110651170B (en) * | 2017-06-19 | 2021-04-13 | 松下知识产权经营株式会社 | Gas meter |
| CN108180958A (en) * | 2018-03-01 | 2018-06-19 | 北京优耐燃气仪表有限公司 | A kind of gas meter counting mechanism and gas meter, flow meter |
| 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 |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 611130, No. three, section 456, hot spring road, Chengdu science and Technology Industry Development Zone, Chengdu District, Wenjiang District, Sichuan, China Patentee after: Sichuan Heng Polytron Technologies Inc Address before: Wenjiang District 611130 of Sichuan city of Chengdu province Chengdu Strait science and Technology Industry Development Park Palma Industrial Park Sichuan Hengxin Technology Co Ltd Patentee before: Sichuan Hengxin Science and Technology Co., Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20111228 |
|
| CX01 | Expiry of patent term |