CN201060501Y - Coding character wheel for counter - Google Patents
Coding character wheel for counter Download PDFInfo
- Publication number
- CN201060501Y CN201060501Y CNU2006201424971U CN200620142497U CN201060501Y CN 201060501 Y CN201060501 Y CN 201060501Y CN U2006201424971 U CNU2006201424971 U CN U2006201424971U CN 200620142497 U CN200620142497 U CN 200620142497U CN 201060501 Y CN201060501 Y CN 201060501Y
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- print wheel
- counter
- coding
- printing opacity
- hole slot
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Abstract
The utility model relates to a coding print wheel used for a measuring instrument and a meter counter. Three fan-shaped non-light tight grooves, which are concentric with the print wheel and are on the same peripheral line, are arranged on the flank of a coding print wheel of the counter. A fan-shaped opaque belt (4) between a non-light tight groove (1) and a non-light tight groove (2) and a non-light tight groove (3) which are symmetrical to each other based on a center of the print wheel have the equal circular included angles. The included angles of the non-light tight grooves (1), (2), (3) are Alpha, Beta and Gamma respectively and the circular included angles of the three non-light tight grooves satisfy the following conditions, i.e. Alpha equal to 72 degrees-Gamma/2, Alpha+Beta+ Gamma equal to 180 degrees, wherein, Gamma can be an arbitrary value between 6 degrees to 30 degrees. When the coding print wheel of the counter is turned a circle, thirty groups of different five-digit binary digital coded electric signals are generated in sequence by a photoelectric sensor composed of five pairs of light transmitting tubes and photosensitive receiving tubes corresponding to the ten digits between 0 to 9 on the coding print wheel of the counter and each digit is corresponding to three groups of five-digit binary codes, and thereby the coding precision can be improved, the manufacturing technique requirement can be lowered, the quantity of the physical sensors used for coding can be reduced and the cost can be brought down.
Description
Technical field:
The utility model relates to a kind of coding print wheel of counter, being adapted to need be to using for artificial reading on the counter character wheel, ten numerals in " 0 "～" 9 " are carried out gauging instrument, instrument and the equipment of electric signal coding output, and especially number passes gauging instrument, the instrument that direct-reading water meter, gas meter, ammeter etc. need carry out the display digit of coding print wheel of counter turned position correspondence the output of electric signal coding.
Background technology:
The existing coding print wheel that is used for gauging instrument, meter counter, its deficiency is comparatively obvious: perhaps group/cording quantity is few, low precision, critical carry position in the time of can not distinguishing coding print wheel of counter interlock carry exactly, critical coding blind spot appears easily, code error and reading error when causing critical carry; Perhaps coding print wheel of counter complex structure makes requiring meticulously, and complex process makes the whole process and assemble difficulty of instrument, instrument big, yield rate is low, has not only improved the manufacturing cost of instrument, instrument, the also difficult simultaneously mass industrialized production that realizes; Perhaps number of sensors is many, in order to obtain more group/cording quantity, use 6 pairs, 7 pairs even more to the photoelectric sensor group of forming by light-emitting tube and the photosensitive receiving tube output of encoding, cost is increased, difficulty of processing strengthens, coding stability energy variation or the like.
Summary of the invention
Design order of the present utility model is: a kind of coding print wheel of counter is provided, it can be used for various by the counter video data, simultaneously must be with display digit, carry out the gauging instrument of electric signal coding output, on instrument and the equipment, critical coding blind spot problem in the time of can solving coding print wheel of counter interlock carry, simultaneously simple in structure, easy to process, easy to manufacture, the photoelectric sensor group that use is made up of 5 pairs of light-emitting tubes and photosensitive receiving tube is carried out the turned position coding output of coding print wheel of counter, coding print wheel of counter rotates a circle, export 30 groups of different 5 binary coding electric signal, can reduce the cost of manufacture of counter, improve the encoding precision of coding print wheel of counter, make the counter coding efficiency reliable, accurately etc.
The utility model for achieving the above object, by to existing water meter, ammeter, gas meters etc. need carry out registration the gauging instrument of electric signal coding output, the counter character wheel that uses on the instrument, carrying out following technological transformation realizes: at first, adopt light-proof material when making coding print wheel of counter (6), secondly, on coding print wheel of counter (6) side, offer three concentric with character wheel, fan-shaped printing opacity hole slot on same circumference, printing opacity hole slot (1), printing opacity hole slot (2) and printing opacity hole slot (3), printing opacity hole slot (1), printing opacity hole slot (2), the circular arc angle of printing opacity hole slot (3) is respectively α, β, γ, fan-shaped aphotic zone (4) between printing opacity hole slot (1) and the printing opacity hole slot (2) is the center symmetry with printing opacity hole slot (3) with the coding print wheel of counter center, the circular arc angle equates, circular arc angle γ is an arbitrary value between 6 ° to 30 °, the circular arc angle of three sections printing opacity hole slots meets the following conditions: α=72 °-γ/2, alpha+beta+γ=180 °; Then in the both sides of coding print wheel of counter, symmetry is installed the photoelectric sensor of being made up of 5 pairs of light-emitting tubes and photosensitive receiving tube respectively, 5 pairs of photoelectric sensor installations in the arc-shaped, center of arc is concentric with coding print wheel of counter, center of arc's radius is the same with light hole groove center radius on the coding print wheel of counter, 5 pairs of photoelectric sensors evenly distribute with 36 ° of angles, by 5 pairs of photoelectric sensors the coding print wheel of counter after technological transformation is encoded, to realize coding output with 36 ° of angle equally distributed " 0 "～" 9 " ten numerals (5) on the coding print wheel of counter end face, corresponding three groups of 5 the different binary codings of each numeral, shared 30 groups of 5 different binary codings are finished the coding output of ten numerals in " 0 "～" 9 " (5) on the coding print wheel of counter.
Two states is represented in one bit " 0 " and " 1 ", in digital circuit, be used for representing two kinds of level states, i.e. " low level " and " high level ", in the utility model, photoelectric sensor is in printing opacity hole slot position, have two kinds of different states during with light tight position, the state that will be in printing opacity hole slot position is defined as " 0 ", and the state when being in light tight position is defined as " 1 " five binary codings and can produces 32 groups of 5 binary codings, and the present invention has used wherein on 30 groups of corresponding coding print wheel of counter of 5 different binary codings ten numerals in equally distributed " 0 "～" 9 " on all end faces of wheel.
When being in the reference position of printing opacity hole slot (1) with any a pair of photoelectric sensor of forming by light-emitting tube and photosensitive receiving tube, coding print wheel of counter begins rotation, sense of rotation enters the direction of printing opacity hole slot (1) for this to photoelectric sensor, coding print wheel of counter rotates γ/2 angles continuously, (36 °-γ/2) angle, γ/2 angles, with the rotation of finishing 36 °, it just in time is a shared position that has of numeral, when coding print wheel of counter whenever rotates a circle, every 36 ° this is carried out continuous sampling to photoelectric sensor, following 30 kinds of states will be arranged:
Coding print wheel of counter rotates between 0 °～γ/2 angles, every 36 ° of photoelectric sensor continuous sampling states:
0010011011
Coding print wheel of counter rotates between γ/2～(36 °-γ/2) angle, every 36 ° of photoelectric sensor continuous sampling states:
0000011111
Coding print wheel of counter rotates between (36 °-γ/2)～36 ° of angles, every 36 ° of photoelectric sensor continuous sampling states:
0100010111
The utility model, 5 pairs of photoelectric sensors adopt 36 ° evenly to distribute, and move to right one and have just obtained the sample states of time a pair of photoelectric sensor, form three group coding groups of 5 pairs of photoelectric sensors.
First group coding: 0,010,011,011 0010
Second group coding: 0,000,011,111 0000
The 3rd group coding: 0,100,010,111 0100
More than include 10 groups of 5 binary codings in every group coding, the coding print wheel of counter circumferential end surfaces is in three group codings with a digital corresponding codes in 36 ° of angle equally distributed " 0 "～" 9 " ten numerals (5), three groups of arranging of same vertical line, 5 continuous binary codings, three group codings move to right simultaneously one and will obtain three groups of 5 binary codings of next numeral, and the like, finished the coding output of 30 groups of 5 binary codes of ten numerals in " 0 "～" 9 ".
Advantage of the present utility model is: it can be used for water meter, ammeter, gas meters etc. are various need be with the gauging instrument of counter character wheel registration coding output, on the instrument, to existing gauging instrument, the counter character wheel of instrument undergoes technological transformation, on the concentric axis of counter character wheel, make three printing opacity arc grooves, by the photoelectric sensor of forming by 5 pairs of light-emitting tubes and photosensitive receiving tube, when realizing that coding print wheel of counter rotates, the purpose of the electric signal coding output of display digit, the coding print wheel of counter manufacture craft is simple, the photoelectric sensor consumption is few, the build-up tolerance tolerance limit is big, finish the coding output of ten numerals in " 0 "-" 9 " on the coding print wheel of counter simultaneously with 30 groups of 5 different binary codings, corresponding three groups of 5 binary codings of each numeral, improved encoding precision, the utility model can not only improve resolving accuracy, eliminate the critical coding blind spot of counter when the interlock carry, simultaneously simple in structure, make easily, under the condition that improves encoding precision, adopt less sensor, reach higher coding output performance, have coding reliability height, cost is low, assembling, features such as handling ease.
Description of drawings:
Fig. 1: one of the utility model embodiment coding print wheel of counter structural representation.
Fig. 2: the two coding print wheel of counter structural representations of the utility model embodiment.
Fig. 3: the utility model photoelectric sensor assembly structure synoptic diagram.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 provides first kind of example structure synoptic diagram of the present utility model, the coding print wheel of counter material adopts black, or other lighttight plastic materials are made, three of making are concentric with character wheel on the coding print wheel of counter side, fan-shaped printing opacity hole slot on same circumference, printing opacity hole slot (1), printing opacity hole slot (2), printing opacity hole slot (3), printing opacity hole slot (1), printing opacity hole slot (2), the circular arc angle of printing opacity hole slot (3) is respectively α, β, γ, center of arc's radius is identical, groove width is identical, fan-shaped aphotic zone (4) between printing opacity hole slot (1) and the printing opacity hole slot (2) is the center symmetry with printing opacity hole slot (3) with the coding print wheel of counter center, the circular arc angle equates, the circular arc angle of three sections printing opacity hole slots meets the following conditions: α=72 °-γ/2, alpha+beta+γ=180 °, wherein circular arc angle γ can value all can meet the demands between 6 ° to 30 °, in Fig. 1, the arc angle γ value of printing opacity hole slot (3): 18 °, the arc angle α value of printing opacity hole slot (1): 63 °, the arc angle β value of printing opacity hole slot (2): 99 °, because there is mismachining tolerance, the arc angle of three sector hole grooves can be just, 0.5 ° of minus deviation.
Fig. 2 provides first kind of example structure synoptic diagram of the present utility model, the coding print wheel of counter material adopts black, or other lighttight plastic materials are made, three of making are concentric with character wheel on the coding print wheel of counter side, fan-shaped printing opacity hole slot on same circumference, printing opacity hole slot (1), printing opacity hole slot (2), printing opacity hole slot (3), printing opacity hole slot (1), printing opacity hole slot (2), the circular arc angle of printing opacity hole slot (3) is respectively α, β, γ, the groove width difference, printing opacity hole slot (1), printing opacity hole slot (2), the groove width of printing opacity hole slot (3) has nothing in common with each other, shape is also inequality, printing opacity hole slot (1) opening slot width is the wideest, in printing opacity hole slot (2) the opening slot width tool, the fluting outer rim is irregular, printing opacity hole slot (3) opening slot width minimum, fan-shaped aphotic zone (4) between printing opacity hole slot (1) and the printing opacity hole slot (2) is the center symmetry with printing opacity hole slot (3) with the coding print wheel of counter center, the circular arc angle equates, the circular arc angle of three sections printing opacity hole slots meets the following conditions: α=72 °-γ/2, alpha+beta+γ=180 °, wherein circular arc angle γ can value all can meet the demands between 6 ° to 30 °, in Fig. 1, the arc angle γ value of printing opacity hole slot (3): 20 °, the arc angle α value of printing opacity hole slot (1): 62 °, the arc angle β value of printing opacity hole slot (2): 98 °, because there is mismachining tolerance, the arc angle of three sector hole grooves can be just, 0.5 ° of minus deviation.
Fig. 3 provides photoelectric sensor assembly structure synoptic diagram of the present utility model, 5 pairs of photoelectric sensors being made up of 5 light-emitting tubes (8) and 5 photosensitive receiving tubes (9) are fixedly installed on the wiring board (7), 5 light-emitting tubes and 5 photosensitive receiving tubes are that 36 ° fan-shaped array symmetry is installed on two wiring boards with angle between adjacent two pipes respectively, fan-shaped center radius is installed to be equated with the hole slot center radius of coding print wheel of counter, centres, wiring board is installed on the both sides of coding print wheel of counter by other stationary installation fixed symmetrical, does not contact with coding print wheel of counter.
In addition to the implementation, the utility model can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model claim.
Claims (1)
1. coding print wheel that is used for gauging instrument, meter counter, comprise: coding print wheel: uniform 20 carry driven tooth on the annular circumferential face of a side of coding print wheel, establish two center lines carry driving tooth on the extended line of carry driven tooth center line on the annular circumferential face of the side in addition of coding print wheel; On the annular circumferential end face of coding print wheel with 36 ° of angles, " 0 "～" the 9 "+individual numeral that evenly distributes and use successively for artificial reading; It is characterized in that: have on the counter character wheel side and character wheel centres, three fan-shaped printing opacity hole slots on same circumference, fan-shaped aphotic zone (4) between printing opacity hole slot (1) and the printing opacity hole slot (2) and printing opacity hole slot (3) are with coding print wheel of counter center symmetry, the circular arc angle equates, the circular arc angle α of printing opacity hole slot (1), the circular arc angle β of printing opacity hole slot (2), the circular arc angle γ of printing opacity hole slot (3) has following mathematical relation:
α+β+γ＝180°，
α＝72°-γ/2，
The value of circular arc angle γ is the arbitrary value between 6 ° to 30 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201424971U CN201060501Y (en) | 2006-12-29 | 2006-12-29 | Coding character wheel for counter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201424971U CN201060501Y (en) | 2006-12-29 | 2006-12-29 | Coding character wheel for counter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201060501Y true CN201060501Y (en) | 2008-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201424971U Expired - Lifetime CN201060501Y (en) | 2006-12-29 | 2006-12-29 | Coding character wheel for counter |
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| CN (1) | CN201060501Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629338A (en) * | 2012-04-28 | 2012-08-08 | 昆明佳晓自来水工程技术有限公司 | Instrument coding print wheel apparatus and coding method |
| CN106372716A (en) * | 2016-08-30 | 2017-02-01 | 浙江威星智能仪表股份有限公司 | Counter encoding extension method based on character wheel counting device |
-
2006
- 2006-12-29 CN CNU2006201424971U patent/CN201060501Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629338A (en) * | 2012-04-28 | 2012-08-08 | 昆明佳晓自来水工程技术有限公司 | Instrument coding print wheel apparatus and coding method |
| CN102629338B (en) * | 2012-04-28 | 2014-06-18 | 昆明佳晓自来水工程技术股份有限公司 | Instrument coding print wheel apparatus and coding method |
| CN106372716A (en) * | 2016-08-30 | 2017-02-01 | 浙江威星智能仪表股份有限公司 | Counter encoding extension method based on character wheel counting device |
| CN106372716B (en) * | 2016-08-30 | 2018-09-04 | 浙江威星智能仪表股份有限公司 | A kind of counter coding extended method based on character wheel counting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: He Lan Document name: Notification of Acceptance of Request for Invalidation |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080514 |
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| EXPY | Termination of patent right or utility model |