CN203893899U - Bar code character wheel direct reading gas meter - Google Patents
Bar code character wheel direct reading gas meter Download PDFInfo
- Publication number
- CN203893899U CN203893899U CN201420305971.2U CN201420305971U CN203893899U CN 203893899 U CN203893899 U CN 203893899U CN 201420305971 U CN201420305971 U CN 201420305971U CN 203893899 U CN203893899 U CN 203893899U
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- character wheel
- bar code
- right cylinder
- cylinder side
- encoding
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Abstract
The utility model provides a bar code character wheel direct reading gas meter which comprises a shell. A character wheel shaft is arranged on the shell and is provided with multiple direct reading character wheels, a linear array photoelectric sensor is arranged on one sides of the character wheels in the length direction of the character wheel shaft, each direct reading character wheel is a cylinder, the side face of each cylinder is provided with Arabic numbers and bar codes, the Arabic numbers and the bar codes are distributed circumferentially along the side face of the corresponding cylinder, the bar codes are composed of multiple sets of encoding strips, the encoding strips of each set are distributed axially along the side face of the corresponding cylinder, and at least one set of the encoding strips corresponds to one Arabic number. A design method in the prior art is completely changed, all information on the character wheels can be read at the same time through one sensor, and defects of the prior art are overcome.
Description
Technical field
The utility model relates to meter, is a kind of bar code character wheel direct-reading combustion gas register.
Background technology
The register using in the gas meter, flow meter of metering gas consumption, has been mainly used in image data and the function of bearing data-switching, and metered body accumulated amount is converted into the accessible pulsed quantity of single-chip microcomputer by it.In this register, conventional sensor mainly contains mechanical reed formula sensor, tongue tube sensor, Hall element and photoelectric sensor.After these sensors and textural association separately, respectively there are relative merits.The sensor that market is generally used is photoelectric sensor, this sensor is combined by reflective coding or transmission-type coding image data and data-switching is carried with character wheel, coding is in the circumferential end surfaces of character wheel, to arrange or arrange in the circumference cambered surface of character wheel, and coding is with the circumferential intermittent arrangement setting of independent color lump.The structure that this coded system is embodied on character wheel is to use photoelectric sensor reading, photoelectric sensor must be arranged and install along the circumferencial direction of character wheel, the deficiency of the register of this structure is: need to adopt multiple sensors, general at least four sensors to interconnect the rear circumferencial direction reading out data along character wheel, the solder joint that each sensor connects is had relatively high expectations, slightly deviation, product rejection, causes the yield rate of product low, and manufacturing cost is high; Installation site precision is low; The resolution of character wheel angle is low, and generally, between 3-8 degree, the error rate of reading is high, when also needing the pcb board of sensor to be arranged between two character wheels in the time that character wheel circumferential end surfaces is encoded, easily causes character wheel stuck in rotation, and failure rate is high, and maintenance capacity is large etc.
Utility model content
The purpose of this utility model is to provide a kind of bar code character wheel direct-reading combustion gas register, and it changes the method for designing of prior art completely, adopts a sensor can read all information on several character wheels, to solve the deficiencies in the prior art simultaneously.
The utility model for achieving the above object, be achieved through the following technical solutions: a kind of bar code character wheel direct-reading combustion gas register, comprise housing, print wheel shaft is installed on housing, several direct reading characters are installed on print wheel shaft, in a side of several character wheels, length direction along print wheel shaft is installed a linear array photoelectric sensors, character wheel is right cylinder, arabic numeral and bar code are set on right cylinder side, arabic numeral and bar code are separately along right cylinder side circumferential array, bar code is made up of array encoding strip, several encoding strips in each group coding bar are arranged along right cylinder side axial, the corresponding arabic numeral of at least one group coding bar.Bar code is circumferential continuous arrangement on character wheel right cylinder side.Described every group coding bar at least comprises two kinds of colors, and encoding strip is rectangle.The described corresponding 3-6 group coding of arabic numeral bar.30 parts of the right cylinder side circumference equal dividings of character wheel, every part 12 degree, arranges a group coding bar in every 12 degree, and ten numerals of arabic numeral 0-9 are distributed within the scope of 360 degree of right cylinder side, and arabic numeral are positioned at 36 degree scopes.Described encoding strip group is at least made up of four encoding strips.Described encoding strip is rectangle, and the encoding strip in each group coding bar is equal in length.The edge of the right cylinder side of character wheel arranges positioning strip, positioning strip one week around right cylinder side.The edge of the right cylinder side of character wheel arranges calibration bars, calibration bars one week around right cylinder side.The outer edge place of the right cylinder side of character wheel arranges positioning strip, and positioning strip inner side arranges calibration bars, and calibration bars inner side arranges encoding strip group, and encoding strip group inner side arranges arabic numeral, positioning strip, calibration bars, encoding strip group and arabic numeral axial array successively.
The utility model provides a kind of bar code character wheel direct-reading combustion gas register for gas meter, flow meter, it has solved deficiency of the prior art, bar code is produced on the right cylinder side of character wheel, several encoding strips in bar code are axial array on the right cylinder side of character wheel, can adopt the structure of linear array photoelectric sensors with the character wheel that this bar code is made, only need a linear array photoelectric sensors just can read the coded message on multiple character wheels, all deficiencies that direct-reading gage register solved exist in prior art.Linear array photoelectric sensors is without connecting error, and without error in mounting position, reading out data is accurate, finished product rate reaches 100%, and the angle-resolved degree of character wheel reaches 0.85 degree left and right, and reading is accurate, in rotation, there is not stuck phenomenon in character wheel, product within serviceable life without maintenance.The advantage such as that register of the present utility model also has is easy to use, low cost of manufacture, antijamming capability are strong.
Brief description of the drawings
Accompanying drawing 1 is the utility model structural representation; Accompanying drawing 2 is stereographic maps of the utility model register;
Accompanying drawing 3 is plan structure schematic diagram of accompanying drawing 1; Accompanying drawing 4 is character wheel 5 right cylinder side stretch-out views in accompanying drawing 1; Accompanying drawing 5 is encoding strip group structural representations of the method establishment of the encoding strip group scale-of-two Gray code arranging and encoding on character wheel, shows the corresponding three group coding bars of arabic numeral on figure; Accompanying drawing 6 is encoding strip group structural representations of the method establishment of the encoding strip group scale-of-two Gray code arranging and encoding on character wheel, shows the corresponding group coding bar of arabic numeral on figure; Accompanying drawing 7 is structural representations that the encoding strip on character wheel adopts scale-of-two natural increasing order arranging and encoding method establishment encoding strip; Accompanying drawing 8 is encoding strip structural representations that the encoding strip on character wheel adopts scale-of-two random alignment coding method establishment.
In accompanying drawing: 1 housing 2 riser 3 installing plate 4 print wheel shaft 5 character wheel 6 linear array photoelectric sensors 7 holder 8 encoding strip 9 calibration bars 10 positioning strip 12 arabic numeral 13 bar code 14 right cylinder sides.
Embodiment
A kind of bar code character wheel direct-reading combustion gas register of the present utility model, comprise housing 1, print wheel shaft 4 is installed on housing 1, several direct reading characters 5 are installed on print wheel shaft 4, in a side of several character wheels, length direction along print wheel shaft is installed a linear array photoelectric sensors 6, a linear array photoelectric sensors 6 can read all character wheel information of installing on print wheel shaft, character wheel 5 is right cylinders, arabic numeral and bar code 13 are set on right cylinder side, arabic numeral 12 and bar code 13 are separately along right cylinder side circumferential array, bar code 13 is made up of array encoding strip 8, several encoding strips in each group coding bar are arranged along right cylinder side axial, the corresponding arabic numeral of at least one group coding bar.The utility model uses a linear array photoelectric sensors can read the coded message on all character wheels of installing on print wheel shaft, has realized the purpose of this utility model and has reached good effect.
Linear array photoelectric sensors described in the utility model also can be changed into line scan image sensor, control circuit is made to corresponding change design, reach a line scan image sensor identify coded message on multiple character wheels both can, the design of this control circuit adopts known technology to complete.
Preferred version of the present utility model is: described bar code is circumferential continuous arrangement on character wheel right cylinder side, and this is the most accurate aligning method of reading, and it can make the error of reading out data be down to minimum.
Every group coding bar described in the utility model at least comprises two kinds of colors, and encoding strip is rectangle, is convenient to the information that the coded combination mode on sensor identification character wheel reflects, two kinds of colors are the schemes that reach the lowest production cost of request for utilization.Certainly, also can adopt three kinds or four kinds of colors, on character wheel, make multiple color, make manufacturing process relative complex.
The generally corresponding 3-6 group coding of the arabic numeral bar on character wheel.When the corresponding arabic numeral of at least one group coding bar, can make linear array photoelectric sensors read coded message, still, the preferred scheme of the utility model is the corresponding 3-6 group coding of arabic numeral bar.The coded message that this scheme can make character wheel in the time rotating, linear array photoelectric sensors be read is more, further improves the degree of accuracy of reading out data, and manufacturing cost is relatively low.
The utility model further preferred scheme is: 30 parts of the right cylinder side circumference equal dividings of character wheel, every part 12 degree, in every 12 degree, a group coding bar is set, ten numerals of arabic numeral 0-9 are distributed within the scope of 360 degree of right cylinder side, and arabic numeral are positioned at 36 degree scopes.This is in reaching accuracy of reading, the selection that manufacturing cost is relatively lower.
The utility model makes linear array photoelectric sensors reading out data more accurate in order further to realize character wheel in rotation, there is not the reading error between two numerals on character wheel, further improve reading accuracy, the further preferred version of making is: described encoding strip is rectangle, encoding strip in each group coding bar is equal in length, and described encoding strip group is at least made up of four encoding strips.
Bar code on character wheel described in the utility model is along right cylinder side circumferential array, all axial array on character wheel right cylinder side of encoding strip of each group, read the coded message on multiple character wheels for realizing a linear array photoelectric sensors, reduce the accuracy of error and raising reading out data etc.
Bar code on the utility model character wheel is preferred, and binary gray encoding is arranged, the corresponding arabic numeral of at least one group coding bar, as shown in Figure 6.Also can be with the corresponding arabic numeral of many group codings bar, the three group coding bars that have been an arabic numeral correspondence shown in Fig. 5.The encoding strip group number that arabic numeral are corresponding is more, and the data precision that linear array photoelectric sensors reads in the time that character wheel rotates is higher.Conventionally in reaching request for utilization, reduce as far as possible by an encoding strip group number that arabic numeral are corresponding, to reduce manufacturing cost.
Bar code on the utility model character wheel, except adopting binary coding, also can adopt three-shift or the quaternary, even more multilevel code.In the time adopting binary coding, can on character wheel, make two kinds of identifying informations by two kinds of colors, while adopting three-shift or quaternary coding, need to adopt three kinds of colors or four kinds of colors on character wheel, to make identifying information, make in this case the complex manufacturing technology of character wheel, cost raise, still, some heavy caliber register tool or have the register tool of special requirement, need to read many bit data time, adopt the coded system of multi-system simultaneously, can realize object.
In addition, when the axial width of character wheel being done when thin, that is: when character wheel is installed in identical print wheel shaft length more, also can adopt the method coding of multi-system, make the linear array photoelectric sensors that length is identical can read the information on more character wheels.Though while adopting multi-system method coding, the manufacturing cost of character wheel is raise, but can realize specific use or some industry needs.
The coding of bar code on the character wheel that the utility model provides, preferred scheme is scale-of-two Gray code, this is the simplest method of manufacture craft, makes the manufacturing cost of character wheel minimum.Certainly, can realize bar code on character wheel, in the coding method of right cylinder side circumferential array, encoding strip structure of axial array on character wheel right cylinder side, also has Multi-encoding method to realize.For example: random alignment coding, natural increasing arranging and encoding etc., it shown in Fig. 7, is the schematic diagram that adopts scale-of-two natural increasing order arranging and encoding method, Fig. 8 is the schematic diagram that adopts the coding method of scale-of-two random alignment, these layout code methods can't comprise other all layout code methods, the method just generally using, this is the relatively low method of manufacturing cost, these layout code methods are being made into bar code corresponding on character wheel, when encoding strip uses, the error of reading is relatively more, for example: the mistake that may occur exceeding adjacent two yards of scopes when linear array photoelectric sensors reading code, the accuracy of reading out data is reduced, in order to solve this deficiency, can adopt transition lines remedy such and insufficient in the bottom between two adjacent encoder bars, but, this structure makes the encoding strip complex manufacturing technology on character wheel, manufacturing cost raises.
The utility model is in order better to realize utility model object, reach more excellent effect, the coding method of choosing is the encoding strip with binary Gray code layout bar code processed, at least form encoding strip group by two kinds of colors, the corresponding group coding bar of each group scale-of-two Gray code, encoding strip is produced on character wheel right cylinder side, each group coding bar is at least made up of 4 encoding strips, as Fig. 3, shown in Fig. 4, formed by two kinds of colors of black and white, each encoding strip in each group coding bar is axial array on character wheel right cylinder side, when having realized the utility model good effect, make manufacturing process relatively simple, low cost of manufacture, finished product rate is high.
Positioning strip 10 or calibration bars 6 also can be set on character wheel of the present utility model, or positioning strip 10 and calibration bars 9 are set.The edge of character wheel right cylinder side arranges positioning strip 10, positioning strip 10 one week around right cylinder side.Positioning strip is axially positioned at bar code outside, and bar code inner side is faced mutually with arabic numeral, medial and lateral described here refer to taking the right-hand member of shown position as outside, be moved to the left as inner side by right-hand member.Positioning strip is used for the starting point of linear array photoelectric sensors recognition coding bar on character wheel, the reading code confusion of avoiding character wheel to occur when issuable axial location is offset in rotation.When several character wheel installation accuracies are very high, in the situation while there is not character wheel axial dipole field in use, positioning strip can be set on character wheel.
On character wheel of the present utility model, in the edge of right cylinder side, calibration bars 9 are set, calibration bars 9 one week around right cylinder side.The effect that calibration bars 9 are set on character wheel is that reading code information saturation degree is proofreaied and correct, and avoids occurring the identification error of encoded colors, further improves the degree of accuracy of sensor reading.When encoding strip color on the utility model character wheel make enough accurate time, calibration bars 9 can be set.The setting position of positioning strip 10 and calibration bars 9 is shown in Fig. 3, Fig. 4, and in figure, 10 is positioning strips, the 9th, and calibration bars.Positioning strip 10, calibration bars 9, encoding strip and arabic numeral are axial array on character wheel right cylinder side, and positioning strip is positioned at the outside of an encoding strip of outermost end on character wheel right cylinder side, in the edge of right cylinder side.As shown in Figure 3, Figure 4, the outer edge place of character wheel right cylinder side arranges positioning strip, and positioning strip inner side arranges calibration bars, and calibration bars inner side arranges encoding strip group, encoding strip group inner side arranges arabic numeral 12, positioning strip 10, calibration bars 9, encoding strip group and arabic numeral 12 axial array successively.
Arabic numeral on character wheel described in the utility model also can be arranged on the middle part of a group coding bar, that is: a group coding bar can be distributed in the left and right sides of arabic numeral.The utility model not detailed description is known technology.
Claims (10)
1. bar code character wheel direct-reading combustion gas register, comprise housing (1), it is characterized in that: the upper print wheel shaft (4) of installing of housing (1), the upper several direct reading characters (5) of installing of print wheel shaft (4), in a side of several character wheels, length direction along print wheel shaft (4) is installed a linear array photoelectric sensors (6), character wheel (5) is right cylinder, arabic numeral (12) and bar code (13) are set on right cylinder side, arabic numeral (12) and bar code (13) are separately along right cylinder side circumferential array, bar code (13) is made up of array encoding strip, several encoding strips in each group coding bar are arranged along right cylinder side axial, the corresponding arabic numeral of at least one group coding bar (12).
2. bar code character wheel direct-reading combustion gas register according to claim 1, is characterized in that: bar code (13) is circumferential continuous arrangement on character wheel right cylinder side.
3. bar code character wheel direct-reading combustion gas register according to claim 1, is characterized in that: described every group coding bar at least comprises two kinds of colors, and encoding strip is rectangle.
4. bar code character wheel direct-reading combustion gas register according to claim 1, is characterized in that: the described corresponding 3-6 group coding of arabic numeral bar.
5. bar code character wheel direct-reading combustion gas register according to claim 1, it is characterized in that: 30 parts of the right cylinder side circumference equal dividings of character wheel, every part 12 degree, in every 12 degree, a group coding bar is set, ten numerals of arabic numeral 0-9 are distributed within the scope of 360 degree of right cylinder side, and arabic numeral are positioned at 36 degree scopes.
6. bar code character wheel direct-reading combustion gas register according to claim 1, is characterized in that: described encoding strip group is at least made up of four encoding strips.
7. bar code character wheel direct-reading combustion gas register according to claim 1, is characterized in that: described encoding strip is rectangle, and the encoding strip in each group coding bar is equal in length.
8. bar code character wheel direct-reading combustion gas register according to claim 1, is characterized in that: the edge of the right cylinder side of character wheel arranges positioning strip, positioning strip one week around right cylinder side.
9. according to the bar code character wheel direct-reading combustion gas register described in claim 1 or 7, it is characterized in that: the edge of the right cylinder side of character wheel arranges calibration bars calibration bars one week around right cylinder side.
10. bar code character wheel direct-reading combustion gas register according to claim 1, it is characterized in that: the outer edge place of the right cylinder side of character wheel arranges positioning strip, positioning strip inner side arranges calibration bars, calibration bars inner side arranges encoding strip group, encoding strip group inner side arranges arabic numeral, positioning strip, calibration bars, encoding strip group and arabic numeral axial array successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305971.2U CN203893899U (en) | 2014-01-14 | 2014-06-10 | Bar code character wheel direct reading gas meter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410014111.8 | 2014-01-14 | ||
| CN201410014111 | 2014-01-14 | ||
| CN201420305971.2U CN203893899U (en) | 2014-01-14 | 2014-06-10 | Bar code character wheel direct reading gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203893899U true CN203893899U (en) | 2014-10-22 |
Family
ID=51238663
Family Applications (7)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410183777.6A Pending CN103968874A (en) | 2014-01-14 | 2014-05-04 | Direct-reading gage register bar code character wheel |
| CN201420222989.6U Expired - Fee Related CN203893873U (en) | 2014-01-14 | 2014-05-04 | Direct-reading gage register bar-code character wheel |
| CN201420305837.2U Expired - Fee Related CN203893868U (en) | 2014-01-14 | 2014-06-10 | Barcode character wheel direct-reading meter indexer |
| CN201410254630.1A Expired - Fee Related CN104111100B (en) | 2014-01-14 | 2014-06-10 | A kind of bar code character wheel direct-reading combustion gas register |
| CN201410254611.9A Pending CN104111085A (en) | 2014-01-14 | 2014-06-10 | Bar code print wheel direct-reading gauge metering device |
| CN201420305971.2U Expired - Fee Related CN203893899U (en) | 2014-01-14 | 2014-06-10 | Bar code character wheel direct reading gas meter |
| CN201410262538.XA Pending CN104048726A (en) | 2014-01-14 | 2014-06-13 | Direct reading meter character wheel surface information array method |
Family Applications Before (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410183777.6A Pending CN103968874A (en) | 2014-01-14 | 2014-05-04 | Direct-reading gage register bar code character wheel |
| CN201420222989.6U Expired - Fee Related CN203893873U (en) | 2014-01-14 | 2014-05-04 | Direct-reading gage register bar-code character wheel |
| CN201420305837.2U Expired - Fee Related CN203893868U (en) | 2014-01-14 | 2014-06-10 | Barcode character wheel direct-reading meter indexer |
| CN201410254630.1A Expired - Fee Related CN104111100B (en) | 2014-01-14 | 2014-06-10 | A kind of bar code character wheel direct-reading combustion gas register |
| CN201410254611.9A Pending CN104111085A (en) | 2014-01-14 | 2014-06-10 | Bar code print wheel direct-reading gauge metering device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410262538.XA Pending CN104048726A (en) | 2014-01-14 | 2014-06-13 | Direct reading meter character wheel surface information array method |
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| Country | Link |
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| CN (7) | CN103968874A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111100A (en) * | 2014-01-14 | 2014-10-22 | 莱芜欧利电子有限公司 | Direct-reading bar code character wheel gas register |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105004358A (en) * | 2015-08-14 | 2015-10-28 | 成都伊贝基科技有限公司 | Photo-magnetic hybrid coder |
| CN105844317A (en) * | 2016-04-26 | 2016-08-10 | 洛阳愿景科技有限公司 | Color coding digital coded disc |
| CN108709612B (en) * | 2018-08-24 | 2024-03-19 | 海盐新跃电器有限公司 | Character wheel rotary table for assisting fixed focus recognition |
| CN109357720A (en) * | 2018-11-16 | 2019-02-19 | 杨镇宇 | A kind of mechanical bar code idler wheel counter |
| CN111780697B (en) * | 2020-07-14 | 2022-08-23 | 惠州市奥普康真空科技有限公司 | Multi-position crucible positioning method and positioning system |
| CN113124942B (en) * | 2021-06-17 | 2021-09-07 | 济南瑞泉电子有限公司 | Photoelectric direct-reading combined character wheel and coding structure on character wheel |
| CN115876231B (en) * | 2022-10-11 | 2024-04-30 | 真诺测量仪表(上海)有限公司 | Character wheel encoder and direct reading method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1197926A (en) * | 1996-11-16 | 1998-11-04 | 程隆 | Remote meter reading transcriber |
| JP4393660B2 (en) * | 2000-02-29 | 2010-01-06 | 日本ペイント株式会社 | Non-chromate metal surface treatment agent for PCM, PCM surface treatment method, and treated PCM steel sheet |
| CN2501121Y (en) * | 2001-09-18 | 2002-07-17 | 孙建国 | Electric readable counter |
| US20060274952A1 (en) * | 2004-07-22 | 2006-12-07 | Matsushita Electric Industrial Co., Ltd. | Multicolored two-dimensional barcode, image display apparatus thereof, information terminal apparatus, display method, decoding method, information communication system, and information communication method |
| CN1782674A (en) * | 2004-12-05 | 2006-06-07 | 无锡市路通电子技术有限公司 | Optical fiber device for directly reading mechanical counter number |
| CN2826535Y (en) * | 2005-08-12 | 2006-10-11 | 祝津水 | Photoelectric processing unit for mechanical counter |
| CN101079094A (en) * | 2007-04-30 | 2007-11-28 | 中国科学院合肥物质科学研究院 | Meter reading identification device for long distance automatic meter reading system |
| CN101482939B (en) * | 2009-02-13 | 2011-03-23 | 陈可扬 | Telemetering meter two-dimensional encoding digital wheel and its integrating sensor code-reading apparatus |
| CN201984503U (en) * | 2011-03-18 | 2011-09-21 | 深圳市江波龙电子有限公司 | Bar code label |
| CN202693020U (en) * | 2012-07-23 | 2013-01-23 | 深圳市千宝通科技有限公司 | Circular hole type encoded character wheel on counter in meter |
| CN203298816U (en) * | 2013-06-06 | 2013-11-20 | 四川交通职业技术学院 | Meter numerical word wheel device |
| CN103968874A (en) * | 2014-01-14 | 2014-08-06 | 莱芜欧利电子有限公司 | Direct-reading gage register bar code character wheel |
-
2014
- 2014-05-04 CN CN201410183777.6A patent/CN103968874A/en active Pending
- 2014-05-04 CN CN201420222989.6U patent/CN203893873U/en not_active Expired - Fee Related
- 2014-06-10 CN CN201420305837.2U patent/CN203893868U/en not_active Expired - Fee Related
- 2014-06-10 CN CN201410254630.1A patent/CN104111100B/en not_active Expired - Fee Related
- 2014-06-10 CN CN201410254611.9A patent/CN104111085A/en active Pending
- 2014-06-10 CN CN201420305971.2U patent/CN203893899U/en not_active Expired - Fee Related
- 2014-06-13 CN CN201410262538.XA patent/CN104048726A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111100A (en) * | 2014-01-14 | 2014-10-22 | 莱芜欧利电子有限公司 | Direct-reading bar code character wheel gas register |
| CN104111100B (en) * | 2014-01-14 | 2017-12-12 | 莱芜欧利电子有限公司 | A kind of bar code character wheel direct-reading combustion gas register |
Also Published As
| Publication number | Publication date |
|---|---|
| CN203893873U (en) | 2014-10-22 |
| CN104111100A (en) | 2014-10-22 |
| CN104111085A (en) | 2014-10-22 |
| CN104048726A (en) | 2014-09-17 |
| CN104111100B (en) | 2017-12-12 |
| CN203893868U (en) | 2014-10-22 |
| CN103968874A (en) | 2014-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20210610 |