CN203432604U - Digital direct-reading device of intelligent metering instrument - Google Patents
Digital direct-reading device of intelligent metering instrument Download PDFInfo
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- CN203432604U CN203432604U CN201320563170.1U CN201320563170U CN203432604U CN 203432604 U CN203432604 U CN 203432604U CN 201320563170 U CN201320563170 U CN 201320563170U CN 203432604 U CN203432604 U CN 203432604U
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- wheel
- character wheel
- moving tooth
- photoelectric sensor
- intelligent metering
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Abstract
The utility model discloses a digital direct-reading device of an intelligent metering instrument. The digital direct-reading device comprises a print wheel box (1), a print wheel assembly (2), a carry gear wheel assembly (3) and a photoelectric module (4); the print wheel assembly (2) comprises a print wheel shaft (20) and multiple print wheels (21), ten numbers from 0 to 9 are uniformly and circumferentially distributed on the surface of each print wheel (21), the surface of the print wheel (21) includes reflectors in black or white, and areas of the reflectors correspond to positions of the numbers on the surface of the print wheel (21); and the photoelectric module (4) comprises multiple groups of photoelectric sensors (43), each group of photoelectric sensors (43) corresponds to one print wheel (21), and encodes the position of the print wheel (21) according to change of reflected lights which are formed by reflecting emission lights via the surface of the print wheel (21), the position of each print wheel (21) is determined by comparing a position code with a preset encode table, and further reading information of the print wheel assembly (2) is obtained. The digital direct-reading device of the intelligent metering instrument is accurate sensing data, reliable in performance, simple in preparation and low in cost, and can be widely applied to the field of intelligent metering instruments.
Description
Technical field
The utility model relates to a kind of digital direct read device of intelligent metering instrument.
Background technology
Universal along with the development of city intelligent and Internet of Things, having occurred at present can data transferring and realize intellectual water meter, intelligent electric meter, Intelligent gasometer and the Intelligent warming gas meter of remote-control.This class intelligent metering instrument need to possess the numerical value collector that shows data function, and can will show that data-switching becomes digital signal, then data-signal teletransmission is gone out.
Chinese Patent Application No. is that 201110274440.2 document discloses a kind of direct-reading water meter register, it comprises digit wheel, housing and rounding wheel, rounding wheel is arranged on bottom or the side of digit wheel, each correspondingly inlays digit wheel or scribbles the material corresponding with inductor, 2～3 sensors to digit wheel identification are installed in bottom in housing, circuit board is arranged on the bottom of housing, and by lead-in wire, signal is exported, its be on the basis of at present traditional wheeled water meter of numeral, carry out improved.There is following shortcoming and defect in this direct-reading water meter register: the multiple color being coated with has damped cycle, and along with the time changes and changes, the multiple color being coated with steeps for a long time and easily comes off in liquid, thereby has influence on the accuracy of data acquisition; On character wheel, be coated with in addition multiple color, complex process, manufacturing cost is high.
In addition, Chinese Patent Application No. is that 201010293539.2 document discloses a kind of character wheel box of water meter, it comprises print wheel shaft, character wheel, the fluid-tight chamber of liquid is housed, be located at chamber, the end, two optical-electric module wiring boards of character wheel box bottom, the one end in described chamber, the end is provided with the side chamber being connected with chamber, the end, two described optical-electric module wiring boards wherein one be arranged in chamber, the end, another piece is longitudinally arranged in side chamber.This character wheel box of water meter has been used two groups of optical-electric module wiring boards, and must orthogonal setting, and its technology difficulty is large and increased cost.
Utility model content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of sensing data accurately, the digital direct read device of dependable performance, simpler, the lower-cost intelligent metering instrument of manufacturing process.
The technical scheme that the utility model adopts is: the utility model comprises character wheel box, print wheel component, carry gear wheel assembly, cavity is established in described character wheel box inside, described print wheel component, described carry gear wheel assembly is all located in described cavity, the digital direct read device of described intelligent metering instrument also comprises optical-electric module, described print wheel component comprises print wheel shaft and several character wheels, described in several, character wheel rotates and is connected with described print wheel shaft respectively, described in each, on the wheel face of character wheel, along being circumferentially laid with 0～9, totally ten demonstrations are digital, the wheel face of described character wheel is provided with the reflecting surface of white reflection face and two kinds of different colours of black reflecting surface, the region of described reflecting surface shows that with on the wheel face of described character wheel ten digital position is corresponding respectively, described optical-electric module comprises some groups of photoelectric sensors, described in every group photoelectric sensor respectively with a corresponding setting of described character wheel, the variation that described in every group, photoelectric sensor reflects light on the wheel face of described character wheel by utilizing emitted light is encoded to the position of described character wheel, described coding and the coding schedule setting in advance are compared, measure the demonstration digit position of character wheel described in each, and then obtain the reading information of described print wheel component.
Described optical-electric module also comprises electron plate, fixing rack for sensor, and described photoelectric sensor is arranged on described fixing rack for sensor, and described electron plate is encoded and converted data-signal to for the light signal that described photoelectric sensor is obtained and sends out.
Described fixing rack for sensor is provided with a plurality of stationary planes, and described photoelectric sensor is arranged at respectively on described stationary plane, and described photoelectric sensor is over against the axle center of described character wheel, and the distance described in each between wheel face of photoelectric sensor and described character wheel equates.
Described in every group, in photoelectric sensor, the quantity of sensor has two at least, and the central angle forming between the axle center of the described character wheel that adjacent described photoelectric sensor is corresponding with it in every group is α, α >=18 °.
Ten of being distributed on the wheel face of described character wheel of described white reflection face and described black reflecting surface correspondence show that digital region forms San Zhong reflecting surface district: full black flour district, half black flour district, full fine flour district, by San Zhong reflecting surface district, form three kinds of different codings, described in every group, in photoelectric sensor, the quantity of sensor is three, the central angle forming between the axle center of the described character wheel that in every group, adjacent described photoelectric sensor is corresponding with it is 36 °, in every group, three described photoelectric sensors show digital light reflective informations for continuous three of obtaining on the wheel face of the described character wheel corresponding with it, form the tri-bit encoding of character wheel position described in this.
Described white reflection face self is formed by the wheel face material color of described character wheel, and described black reflecting surface adopts thermoprint mode to form at the wheel face of described character wheel.
A side of described character wheel is provided with carry moving tooth, another side is provided with several along circumferential uniform transpose moving tooth, described carry gear wheel assembly comprises bearing pin and gear wheel, on described gear wheel, edge is circumferentially laid with the gear teeth, the described carry moving tooth of the described character wheel of low order bit is relative to setting with the described transpose moving tooth than the described character wheel of its high numerical digit, and the two is provided with the gear wheel transmission that is meshed with described carry moving tooth and described transpose moving tooth respectively, 360 °, every rotation one circle of described character wheel of low order bit, described carry moving tooth on it drives described gear wheel to rotate, by described gear wheel transmission, drive than the described character wheel of its high numerical digit and rotate 36 °, make it show that numeral adds one, thereby realize decade.
The quantity of described carry moving tooth is two, and the quantity of described transpose moving tooth is 20, and the central angle between adjacent described transpose moving tooth is 18 °.
Described transpose moving tooth, described carry moving tooth are column type tooth.
The gear teeth of described gear wheel are divided into 3～5 groups, every group comprises a long tooth and a short tooth, all long tooth on described gear wheel is concordant near a side of described transpose moving tooth with all short teeth, and the transmission that is meshed with described transpose moving tooth, described gear wheel is near the transmission that is only meshed with described carry moving tooth by described long tooth of a side of described carry moving tooth.
The beneficial effects of the utility model are: because the utility model comprises optical-electric module, described print wheel component comprises print wheel shaft and several character wheels, described in several, character wheel rotates and is connected with described print wheel shaft respectively, described in each, on the wheel face of character wheel, along being circumferentially laid with 0～9, totally ten demonstrations are digital, the wheel face of described character wheel is provided with the reflecting surface of white reflection face and two kinds of different colours of black reflecting surface, the region of described reflecting surface shows that with on the wheel face of described character wheel ten digital position is corresponding respectively, described optical-electric module comprises some groups of photoelectric sensors, described in every group photoelectric sensor respectively with a corresponding setting of described character wheel, the variation that described in every group, photoelectric sensor reflects light on the wheel face of described character wheel by utilizing emitted light is encoded to the position of described character wheel, described coding and the coding schedule setting in advance are compared, measure the demonstration digit position of character wheel described in each, and then obtain the reading information of described print wheel component, the utility model forms the coded sequence of character wheel position by the reflecting surface of white reflection face and two kinds of different colours of black reflecting surface, by photoelectric sensor, obtain coding, photoelectric sensor is different to the rear luminous flux receiving of wheel face reflection of black and white different colours, the light quantity signal receiving can judge the position of character wheel after treatment, thereby realize character wheel reading, avoided the defect of the poor accuracy that multiple color decay and long period of soaking bring, and the reflecting surface of black and white different colours can not come off, guaranteed the accuracy of data acquisition, and be suitable for long-term use, adaptive by described optical-electric module and described print wheel component, the wheel face of described character wheel arranges the reflecting surface of black and white different colours, its technique is simpler, cost is also lower, therefore the utility model sensing data is accurate, dependable performance, manufacturing process is simpler, cost is lower.
Accompanying drawing explanation
Fig. 1 is the side structure schematic diagram of the utility model embodiment;
Fig. 2 is longitudinal section structural representation shown in Fig. 1;
Fig. 3 is the section structure of A-A shown in Fig. 1 schematic diagram;
Fig. 4 is the structural representation of the print wheel component of the utility model embodiment;
Fig. 5 is the character wheel of the utility model embodiment and the drive connection structural representation of gear wheel;
Fig. 6 is the wheel face deployed configuration schematic diagram of the character wheel of the utility model embodiment.
Embodiment
As shown in Fig. 1～Fig. 6, the digital direct read device of the intelligent metering instrument of the present embodiment comprises character wheel box 1, print wheel component 2, carry gear wheel assembly 3, optical-electric module 4, cavity 5 is established in described character wheel box 1 inside, described print wheel component 2, described carry gear wheel assembly 3, described optical-electric module 4 is all located in described cavity 5, described print wheel component 2 comprises print wheel shaft 20 and four character wheels 21, four described character wheels 21 rotate and are connected with described print wheel shaft 20 respectively, described in each, on the wheel face of character wheel 21, along being circumferentially laid with 0～9, totally ten demonstrations are digital, the wheel face of described character wheel 21 is provided with the reflecting surface of white reflection face 24 and 25 two kinds of different colours of black reflecting surface, the region of described reflecting surface shows that with on the wheel face of described character wheel 21 ten digital position is corresponding respectively, in the present embodiment, corresponding to ten on the wheel face of described character wheel 21, show that digital region forms San Zhong reflecting surface district: show numeral 4, 5, 6 Wei Quan black flour district, region A, show numeral 2, 3, 7, 8 Wei Ban black flour district, region B, show numeral 9, 0, 1 Wei Quan fine flour district, region C, by San Zhong reflecting surface district, form three kinds of different coding (A, B, C), described white reflection face 24 self is formed by the wheel face material color of described character wheel 21, described character wheel 21 adopts white plastic manufacture, described black reflecting surface 25 adopts thermoprint mode to form at the wheel face of described character wheel 21, its technique is simple, production efficiency is high, described optical-electric module 4 comprises electron plate 41, fixing rack for sensor 42, four groups of photoelectric sensors 43, described in every group photoelectric sensor 43 respectively with the corresponding setting of a described character wheel 21, the variation that described in every group, photoelectric sensor 43 reflects light on the wheel face of described character wheel 21 by utilizing emitted light is encoded to the position of described character wheel 21, described coding and the coding schedule setting in advance are compared, measure the demonstration digit position of character wheel 21 described in each, and then obtain the reading information of described print wheel component 2, in the present embodiment, described in every group, in photoelectric sensor 43, the quantity of sensor is three, the central angle forming between the axle center of the described character wheel 21 that in every group, adjacent described photoelectric sensor 43 is corresponding with it is 36 °, in every group, three described photoelectric sensors 43 show digital light reflective informations for continuous three of obtaining on the wheel face of the described character wheel 21 corresponding with it, form the tri-bit encoding of character wheel 21 positions described in this, described photoelectric sensor 43 is arranged on described fixing rack for sensor 42, described electron plate 41 is encoded and is converted data-signal to for the light signal that described photoelectric sensor 43 is obtained and sends out, a side of described character wheel 21 is provided with carry moving tooth 23, another side is provided with several along circumferential uniform transpose moving tooth 22, described carry gear wheel assembly 3 comprises bearing pin 30 and gear wheel 31, on described gear wheel 31, edge is circumferentially laid with the gear teeth 32, the described carry moving tooth 23 of the described character wheel 21 of low order bit is relative to setting with the described transpose moving tooth 22 than the described character wheel 21 of its high numerical digit, and the two is provided with a gear wheel 31 transmission that is meshed with described carry moving tooth 23 and described transpose moving tooth 22 respectively, 360 °, every rotation one circle of described character wheel 21 of low order bit, described carry moving tooth 23 on it drives described gear wheel 31 to rotate, by described gear wheel 31 transmissions, drive than the described character wheel of its high numerical digit 21 and rotate 36 °, make it show that numeral adds one, thereby realize decade, in the present embodiment, the quantity of described carry moving tooth 23 is two, the quantity of described transpose moving tooth 22 is 20, central angle between adjacent described transpose moving tooth 22 is 18 °, described transpose moving tooth 22, described carry moving tooth 23 is column type tooth, the gear teeth 32 of described gear wheel 31 are divided into 4 groups, every group comprises a long tooth 321 and a short tooth 322, all long tooth 321 on described gear wheel 31 is concordant near a side of described transpose moving tooth 22 with all short teeth 322, and the transmission that is meshed with described transpose moving tooth 22, described gear wheel 31 is near the transmission that is only meshed with described carry moving tooth 23 by described long tooth 321 of a side of described carry moving tooth 23, be that described long tooth 321 can be inserted into engaged transmission between two described carry moving teeth 23, above structure makes transmission more accurately and is reliable, and processing technology is easy.
In the present embodiment, described photoelectric sensor 43 is positioned at the below of described character wheel 21, described photoelectric sensor 43 is encoded and is formed coded sequence according to order from left to right in Fig. 2, the numeral of character wheel 21 readings directly over being described in each, described in each, the corresponding relation of character wheel 21 readings and its coded sequence is as shown in the table:
| Character wheel reading | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Coded sequence | AAA | AAB | ABB | BBC | BCC | CCC | CCB | CBB | BBA | BAA |
Described in protection domain of the present utility model is not limited to implement, as described in every group, in photoelectric sensor 43, the minimum number of sensor can have two, the quantity of described photoelectric sensor 43 is for the figure place of control coding sequence, the reflecting surface of black and white different colours also can form the reflecting surface district more than the reflective amount of difference of two kinds, its quantity is for the kind of control coding, and the two is in conjunction with the coding that can form Multi-encoding sequence figure place and kind; In addition, the central angle forming between the axle center of the described character wheel 21 that adjacent described photoelectric sensor 43 is corresponding with it in every group is α, and α >=18 °, to avoid the quantity of the described photoelectric sensor 43 in every group too much; In addition, the gear teeth 32 of described gear wheel 31 also can be divided into 3～5 groups.In above embodiment, being only in order to illustrate the utility model, is not the restriction to the utility model protection domain.
The utility model forms the coded sequence of character wheel position by the reflecting surface of different smooth finish, by photoelectric sensor, obtain coding, photoelectric sensor is different to the rear luminous flux receiving of wheel face reflection of black and white different colours, the light quantity signal receiving can judge the position of character wheel after treatment, thereby realize character wheel reading, avoided the defect of the poor accuracy that color decay and long period of soaking bring, and the reflecting surface of black and white different colours can not come off, guaranteed the accuracy of data acquisition, and be suitable for long-term use, adaptive by described optical-electric module and described print wheel component, the wheel face of described character wheel arranges the reflecting surface of black and white different colours, its technique is simpler, cost is also lower, therefore the utility model sensing data is accurate, dependable performance, manufacturing process is simpler, cost is lower.
The utility model can be widely used in intelligent metering instrument field.
Claims (10)
1. the digital direct read device of an intelligent metering instrument, comprise character wheel box (1), print wheel component (2), carry gear wheel assembly (3), cavity (5) is established in described character wheel box (1) inside, described print wheel component (2), described carry gear wheel assembly (3) is all located in described cavity (5), it is characterized in that: the digital direct read device of described intelligent metering instrument also comprises optical-electric module (4), described print wheel component (2) comprises print wheel shaft (20) and several character wheels (21), character wheel described in several (21) rotates and is connected with described print wheel shaft (20) respectively, on the wheel face of character wheel described in each (21), along being circumferentially laid with 0～9, totally ten demonstrations are digital, the wheel face of described character wheel (21) is provided with the reflecting surface of white reflection face (24) and (25) two kinds of different colours of black reflecting surface, the region of described reflecting surface shows that with on the wheel face of described character wheel (21) ten digital position is corresponding respectively, described optical-electric module (4) comprises some groups of photoelectric sensors (43), photoelectric sensor described in every group (43) respectively with the corresponding setting of a described character wheel (21), photoelectric sensor described in every group (43) reflects the variation of light and is encoded in the position of described character wheel (21) on the wheel face of described character wheel (21) by utilizing emitted light, described coding and the coding schedule setting in advance are compared, measure the demonstration digit position of character wheel (21) described in each, and then obtain the reading information of described print wheel component (2).
2. the digital direct read device of intelligent metering instrument according to claim 1, it is characterized in that: described optical-electric module (4) also comprises electron plate (41), fixing rack for sensor (42), it is upper that described photoelectric sensor (43) is arranged at described fixing rack for sensor (42), and described electron plate (41) is encoded and converted data-signal to for the light signal that described photoelectric sensor (43) is obtained and sends out.
3. the digital direct read device of intelligent metering instrument according to claim 2, it is characterized in that: described fixing rack for sensor (42) is provided with a plurality of stationary planes, described photoelectric sensor (43) is arranged at respectively on described stationary plane, described photoelectric sensor (43) is over against the axle center of described character wheel (21), and the distance between the wheel face of photoelectric sensor described in each (43) and described character wheel (21) equates.
4. the digital direct read device of intelligent metering instrument according to claim 1, it is characterized in that: in photoelectric sensor described in every group (43), the quantity of sensor has two at least, the central angle forming between the axle center of the described character wheel (21) that in every group, adjacent described photoelectric sensor (43) is corresponding with it is α, α >=18 °.
5. the digital direct read device of intelligent metering instrument according to claim 1, it is characterized in that: ten of being distributed on the wheel face of described character wheel (21) of described white reflection face (24) and described black reflecting surface (25) correspondence show that digital region forms San Zhong reflecting surface district: full black flour district (A), half black flour district (B), full fine flour district (C), by San Zhong reflecting surface district, form three kinds of different codings, in photoelectric sensor described in every group (43), the quantity of sensor is three, the central angle forming between the axle center of the described character wheel (21) that in every group, adjacent described photoelectric sensor (43) is corresponding with it is 36 °, in every group, three described photoelectric sensors (43) show digital light reflective informations for continuous three of obtaining on the wheel face of the described character wheel (21) corresponding with it, form the tri-bit encoding of character wheel (21) position described in this.
6. the digital direct read device of intelligent metering instrument according to claim 1, it is characterized in that: described white reflection face (24) self is formed by the wheel face material color of described character wheel (21), described black reflecting surface (25) adopts thermoprint mode to form at the wheel face of described character wheel (21).
7. the digital direct read device of intelligent metering instrument according to claim 1, it is characterized in that: a side of described character wheel (21) is provided with carry moving tooth (23), another side is provided with several along circumferential uniform transpose moving tooth (22), described carry gear wheel assembly (3) comprises bearing pin (30) and gear wheel (31), described gear wheel (31) is upper along being circumferentially laid with the gear teeth (32), the described carry moving tooth (23) of the described character wheel (21) of low order bit is relative to setting with the described transpose moving tooth (22) of the described character wheel (21) than its high numerical digit, and the two is provided with a gear wheel (31) transmission that is meshed with described carry moving tooth (23) and described transpose moving tooth (22) respectively, 360 °, every rotation one circle of described character wheel (21) of low order bit, described carry moving tooth (23) on it drives described gear wheel (31) to rotate, by described gear wheel (31) transmission, drive and rotate 36 ° than the described character wheel (21) of its high numerical digit, make it show that numeral adds one, thereby realize decade.
8. the digital direct read device of intelligent metering instrument according to claim 7, it is characterized in that: the quantity of described carry moving tooth (23) is two, the quantity of described transpose moving tooth (22) is 20, and the central angle between adjacent described transpose moving tooth (22) is 18 °.
9. the digital direct read device of intelligent metering instrument according to claim 7, is characterized in that: described transpose moving tooth (22), described carry moving tooth (23) are column type tooth.
10. the digital direct read device of intelligent metering instrument according to claim 7, it is characterized in that: the gear teeth (32) of described gear wheel (31) are divided into 3～5 groups, every group comprises a long tooth (321) and a short tooth (322), all long tooth (321) on described gear wheel (31) is concordant near a side of described transpose moving tooth (22) with all short teeth (322), and the transmission that is meshed with described transpose moving tooth (22), described gear wheel (31) is near the transmission that is only meshed with described carry moving tooth (23) by described long tooth (321) of a side of described carry moving tooth (23).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320563170.1U CN203432604U (en) | 2013-09-06 | 2013-09-06 | Digital direct-reading device of intelligent metering instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320563170.1U CN203432604U (en) | 2013-09-06 | 2013-09-06 | Digital direct-reading device of intelligent metering instrument |
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| CN203432604U true CN203432604U (en) | 2014-02-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471640A (en) * | 2013-09-06 | 2013-12-25 | 刁宇浩 | Numerical code direct reader of intelligent meter |
| CN105844317A (en) * | 2016-04-26 | 2016-08-10 | 洛阳愿景科技有限公司 | Color coding digital coded disc |
-
2013
- 2013-09-06 CN CN201320563170.1U patent/CN203432604U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471640A (en) * | 2013-09-06 | 2013-12-25 | 刁宇浩 | Numerical code direct reader of intelligent meter |
| CN105844317A (en) * | 2016-04-26 | 2016-08-10 | 洛阳愿景科技有限公司 | Color coding digital coded disc |
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Granted publication date: 20140212 |