CN105203172A - Electronic direct-reading character wheel box of liquid seal water meter - Google Patents
Electronic direct-reading character wheel box of liquid seal water meter Download PDFInfo
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- CN105203172A CN105203172A CN201510426741.0A CN201510426741A CN105203172A CN 105203172 A CN105203172 A CN 105203172A CN 201510426741 A CN201510426741 A CN 201510426741A CN 105203172 A CN105203172 A CN 105203172A
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- character wheel
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- wheel shaft
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Abstract
The invention belongs to the technical field of water meters and discloses an electronic direct-reading character wheel box of a liquid seal water meter. The electronic direct-reading character wheel box comprises a character wheel cavity and an electronic module cavity, wherein a character wheel shaft, a character wheel set, a carry wheel shaft and a four/eight-tooth wheel set are arranged in the character wheel cavity, the character wheel set is arranged on the character wheel shaft, the carry wheel shaft is arranged parallel to the character wheel shaft, and the four/eight-tooth wheel set is arranged on the carry wheel shaft; the character wheel set and the four/eight-tooth wheel set are connected in a transmission mode; the two ends of the character wheel shaft are arranged at the two ends of the character wheel cavity respectively, one end of the character wheel shaft penetrates through the end wall of the character wheel cavity, and a ten-tooth wheel is arranged at the end, penetrating through the character wheel cavity, of the character wheel shaft; a permanent magnet is arranged on the character wheel set; two magnetic sensing circuit boards perpendicular to each other are arranged in the electronic module cavity, and Z-axis magneto-resistor sensing chips are arranged on the magnetic sensing circuit boards. According to the electronic direct-reading character wheel box, electronic modules can be encapsulated with conventional nontransparent epoxy resin glue; the problem that light reflection or refraction is caused by bubbles produced in a liquid seal photoelectric character wheel box and affects the accuracy of photoelectric direct reading is completely solved.
Description
Technical field
The invention belongs to water meter technical field, particularly relate to a kind of liquid-sealing water meter electronic direct-reading character wheel box.
Background technology
The character wheel box that character wheel box of water meter in current domestic widely used liquid-sealing remote transmission water meter mainly designs based on optical-electric module wiring board, optical-electric module is installed additional by character wheel box, and the epoxy resin process for filling colloid into using light transmission strong seals character wheel box, reaches the function of photo-electronic directly reading teletransmission.This plastic material light transmission just requiring liquid-sealing water meter character wheel box to select is strong, electro-optical package slot machining dimensional accuracy is high in character wheel box; Optical-electric module adopts Optical encoder to gather character wheel coded message to realize counter electronic long-distance transmission direct-reading function, photoelectric tube as much as possible is selected to be improve one of accuracy rate method to the precision guaranteed character wheel and locate, optical-electric module is welded to form by polylith electro-optical package, installation procedure is loaded down with trivial details, need the artificial of at substantial, cause production efficiency low.Also need to adopt the strong transparent epoxy resin glue of light transmission to ensure optical-electric module water proofing property and daylighting simultaneously.
This kind of band optical-electric module character wheel box is in the generation of producing, transporting, store and all may cause in use procedure bubble in character wheel box cavity, and the generation of bubble also makes light produce reflection and refraction, cause the faults such as reading error code, use the production of this kind of character wheel box and request for utilization high, to the difficulty that the spread of character wheel box brings.
Summary of the invention
The object of the invention is the deficiency existed to overcome above prior art, providing a kind of production and processing to assemble simple, the liquid-sealing water meter electronic direct-reading character wheel box of electronical reading accurate stable.
The technical solution adopted for the present invention to solve the technical problems is: a kind of liquid-sealing water meter electronic direct-reading character wheel box, comprises character wheel chamber and electronic module chamber; Be provided with print wheel shaft in described character wheel chamber, the character wheel group be arranged on print wheel shaft, the carry wheel shaft be arranged in parallel with described print wheel shaft and four or the eight gear wheel groups be arranged on carry wheel shaft; Described character wheel group and four or eight described gear wheel groups are in transmission connection; The two ends of described print wheel shaft are separately positioned on the two ends in character wheel chamber, and through character wheel chamber, described print wheel shaft one end end wall, the one end in the through character wheel chamber of described print wheel shaft is provided with ten gear wheels; Described character wheel group is provided with permanent magnet;
Be provided with two orthogonal magnetic sense line plates in described electronic module chamber, described magnetic sense line plate is provided with Z axis magneto-resistor sensing chip.
Further, described character wheel group comprises the first character wheel and three character wheels; Described four or eight gear wheel groups comprise three four or eight gear wheels be arranged on carry wheel shaft, and described the first character wheel and three character wheels engage with four or eight corresponding gear wheels respectively.
Further, for effectively accurately locating each character wheel, described permanent magnet is column type, and quantity is four, and is inlaid in the first character wheel and three character wheels respectively; Four described permanent magnets respectively with described the first character wheel and three character wheels coaxial; Magnetic sense line plate described in two is respectively arranged with four Z axis magneto-resistor sensing chips, four Z axis magneto-resistor sensing chips on each magnetic sense line plate are corresponding with four described permanent magnets respectively.
As preferably, for avoiding influencing each other in character wheel group between each character wheel internal permanent magnet, in described character wheel group, between adjacent two character wheels, be provided with magnetic shield panel.
As preferably, connecting by patching key between the magnetic sense line plate described in two, enough facilitating connection between two magnetic sense line plates by patching bond energy.
As preferably, be filled with epoxy glue in described electronic module chamber, epoxy glue can carry out water-proofing treatment to electronic module, guarantees electronic module energy steady operation.
Further, for offsetting the change of character wheel chamber inside water pressure, in described character wheel chamber, liquid is filled with.
Beneficial effect of the present invention: 1. character wheel box can adopt the working of plastics of normal transparent material, owing to not adopting optical-electric module so reduce the difficulty of injection molding without the need to processing photoelectricity board slot;
2. optical-electric module guarantees by photoelectric tube quantity the precision that character wheel is located, and liquid-sealing water meter electronic direct-reading character wheel box adopts Z axis magneto-resistor angle sensor mode to greatly reduce electronic devices and components quantity, greatly reduce the cost of product bug, this module only needs AB two sides wiring board simultaneously, directly decrease the welding technology before circuit board quantity and wiring board, be applicable to large-scale production.
3. achieve and carry out pot electronics module with conventional nontransparent epoxy resin glue, greatly reduce production cost;
4. completely solve liquid sealing photoelectric character wheel box at production, transport, storage and the issuable bubble of use procedure, and cause reflection or the refraction of light, and then affect the accuracy of photo-electronic directly reading.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is liquid-sealing water meter electronic direct-reading character wheel box perspective view of the present invention;
Fig. 2 is character wheel box vertical view;
Fig. 3 is Fig. 2 A-A direction cut-open view;
Fig. 4 is Fig. 2 B-B direction cut-open view;
Fig. 5 is the rigging position schematic diagram of character wheel box character wheel group and magnetic sense line plate;
Fig. 6 is the rigging position schematic diagram of character wheel box magnetic sense line plate;
Wherein: 1. character wheel, 2. the first character wheel, 3. print wheel shaft, 4. four or eight gear wheels, 5. carry wheel shaft, 6. character wheel chamber, 7. ten gear wheels, 8. electronic module chamber, 9. magnetic sense line plate, 10.Z axle magneto-resistor sensing chip, 11. permanent magnets, 12. magnetic shield panels, 13. patch key.
Embodiment
Embodiment
As shown in figs. 1 to 6, a kind of liquid-sealing water meter electronic direct-reading character wheel box, comprises character wheel chamber 6 and electronic module chamber 8; Be provided with print wheel shaft 3 in described character wheel chamber 6, the character wheel group be arranged on print wheel shaft 3, the carry wheel shaft 5 be arranged in parallel with described print wheel shaft 3 and four or the eight gear wheel groups be arranged on carry wheel shaft 5; Described character wheel group and four or eight described gear wheel groups are in transmission connection; The two ends of described print wheel shaft 3 are separately positioned on the two ends in character wheel chamber 6, and through character wheel chamber 6, described print wheel shaft 3 one end end wall, the one end in the through character wheel chamber 6 of described print wheel shaft 3 is provided with ten gear wheels 7; Described character wheel group is provided with permanent magnet 11.
Particularly, as Fig. 1,2, shown in 4 and 5, described character wheel group comprises the first character wheel 2 and three character wheels 1; Described four or eight gear wheel groups comprise three four or eight gear wheels 4 be arranged on carry wheel shaft 5, and described the first character wheel 2 and three character wheels 1 engage with four or eight corresponding gear wheels 4 respectively.
As shown in Figure 4, described permanent magnet 11 is column type, and quantity is four, and is inlaid in the first character wheel 2 and three character wheels 1 respectively; Four described permanent magnets 11 respectively with described the first character wheel 2 and three character wheels coaxial.
As illustrated in figures 3-6, be provided with in described electronic module chamber 8 between two orthogonal magnetic sense line plates, 9, two magnetic sense line plates 9 and connect by patching key 13, two described magnetic sense line plates 9 are provided with 4 Z axis magneto-resistor sensing chips 10; Four Z axis magneto-resistor sensing chips 10 on each magnetic sense line plate 9 respectively permanent magnet 11 described with four are corresponding.For avoiding influencing each other in character wheel group between each character wheel internal permanent magnet 11, in described character wheel group, between adjacent two character wheels, be provided with magnetic shield panel 12.
Be filled with epoxy glue in described electronic module chamber 8, epoxy glue can carry out water-proofing treatment to magnetic sense line plate 9, guarantees electronic module energy steady operation; For offsetting the change of character wheel chamber 6 inside water pressure, in described character wheel chamber 6, be filled with liquid.
Its principle of work is as follows: when water meter counting mechanism carries out transmission by ten gear wheels 7, makes the first character wheel 2 and character wheel 1 carry out work.When the first character wheel 2 meets 9 mistakes 0 namely to high-order carry, promote the carry of next bit character wheel 1 by corresponding four or eight gear wheels 4; At any specific time point, as long as determine the relative space relation between digital indicating value (corresponding permanent magnet 11 anglec of rotation), the first character wheel 2 or the character wheel 1 on the first character wheel 2 or character wheel 1 and the Z axis magneto-resistor sensing chip 10 on two orthogonal magnetic sense line plates 9, formed quadrature magnetic signal is converted into sinusoidal and cosine (angle) by Z axis magneto-resistor sensing chip 10, utilize algorithm to calculate the position of each character wheel 0-9, the character wheel window reading value of character wheel box can be obtained like this.
Should be appreciated that specific embodiment described above only for explaining the present invention, being not intended to limit the present invention.Still be among protection scope of the present invention by spirit institute's apparent change of extending out of the present invention or change.
Claims (7)
1. a liquid-sealing water meter electronic direct-reading character wheel box, is characterized in that: comprise character wheel chamber (6) and electronic module chamber (8); Be provided with print wheel shaft (3) in described character wheel chamber (6), the character wheel group be arranged on print wheel shaft (3), the carry wheel shaft (5) be arranged in parallel with described print wheel shaft (3) and four or the eight gear wheel groups be arranged on carry wheel shaft (5); Described character wheel group and four or eight described gear wheel groups are in transmission connection; The two ends of described print wheel shaft (3) are separately positioned on the two ends of character wheel chamber (6), and described print wheel shaft (3) one end through character wheel chamber (6) end wall, one end of the through character wheel chamber (6) of described print wheel shaft (3) is provided with ten gear wheels (7); Described character wheel group is provided with permanent magnet (11);
Be provided with two orthogonal magnetic sense line plates (9) in described electronic module chamber (8), described magnetic sense line plate (9) is provided with Z axis magneto-resistor sensing chip (10).
2. liquid-sealing water meter electronic direct-reading character wheel box according to claim 1, is characterized in that: described character wheel group comprises the first character wheel (2) and three character wheels (1); Described four or eight gear wheel groups comprise three four or eight gear wheels (4) be arranged on carry wheel shaft (5), and described the first character wheel (2) and three character wheels (1) are engaged with corresponding four or eight gear wheels (4) respectively.
3. liquid-sealing water meter electronic direct-reading character wheel box according to claim 2, it is characterized in that: described permanent magnet (11) is column type, quantity is four, and is inlaid in the first character wheel (2) and three character wheels (1) respectively; Four described permanent magnets (11) respectively with described the first character wheel (2) and three character wheels (1) coaxial; Magnetic sense line plate (9) described in two is respectively arranged with four Z axis magneto-resistor sensing chips (10), four Z axis magneto-resistor sensing chips (10) on each magnetic sense line plate (9) are corresponding with four described permanent magnets (11) respectively.
4. liquid-sealing water meter electronic direct-reading character wheel box according to claim 3, is characterized in that: be provided with magnetic shield panel (12) between adjacent two character wheels in described character wheel group.
5. liquid-sealing water meter electronic direct-reading character wheel box according to claim 1, is characterized in that: connect by patching key (13) between the magnetic sense line plate (9) described in two.
6. liquid-sealing water meter electronic direct-reading character wheel box according to claim 1, is characterized in that: be filled with epoxy glue in described electronic module chamber (8).
7. liquid-sealing water meter electronic direct-reading character wheel box according to claim 1, is characterized in that: be filled with liquid in described character wheel chamber (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426741.0A CN105203172A (en) | 2015-07-20 | 2015-07-20 | Electronic direct-reading character wheel box of liquid seal water meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426741.0A CN105203172A (en) | 2015-07-20 | 2015-07-20 | Electronic direct-reading character wheel box of liquid seal water meter |
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| CN105203172A true CN105203172A (en) | 2015-12-30 |
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| CN201510426741.0A Pending CN105203172A (en) | 2015-07-20 | 2015-07-20 | Electronic direct-reading character wheel box of liquid seal water meter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127363A (en) * | 2017-12-21 | 2018-06-08 | 宁波东海仪表水道有限公司 | For four or eight teeth to be sent into the device of character wheel storehouse housing |
| CN108362348A (en) * | 2018-04-26 | 2018-08-03 | 湖南常德牌水表制造有限公司 | A kind of water meter device |
| CN109916459A (en) * | 2019-04-18 | 2019-06-21 | 泰安轻松表计有限公司 | A kind of wet type electromechanics separation photoelectric direct reading remote transmission water meter and its application method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2332998Y (en) * | 1998-05-07 | 1999-08-11 | 宁波东海仪表水道有限公司 | Rotary wing type liquid sealing watermeter |
| CN203688021U (en) * | 2014-02-19 | 2014-07-02 | 宁波凯特水表有限公司 | Counter of vertical piston liquid seal water meter |
| CN203704997U (en) * | 2014-03-05 | 2014-07-09 | 成都千嘉科技有限公司 | Magnetoelectric direct reading metering device |
| CN204007758U (en) * | 2014-07-31 | 2014-12-10 | 株式会社村田制作所 | Flow detector |
| CN104596605A (en) * | 2015-02-04 | 2015-05-06 | 江苏多维科技有限公司 | Magnetic automation flow recorder |
| CN204902917U (en) * | 2015-07-20 | 2015-12-23 | 谈晓彬 | Liquid seal water gauge electron direct reading character wheel box |
-
2015
- 2015-07-20 CN CN201510426741.0A patent/CN105203172A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2332998Y (en) * | 1998-05-07 | 1999-08-11 | 宁波东海仪表水道有限公司 | Rotary wing type liquid sealing watermeter |
| CN203688021U (en) * | 2014-02-19 | 2014-07-02 | 宁波凯特水表有限公司 | Counter of vertical piston liquid seal water meter |
| CN203704997U (en) * | 2014-03-05 | 2014-07-09 | 成都千嘉科技有限公司 | Magnetoelectric direct reading metering device |
| CN204007758U (en) * | 2014-07-31 | 2014-12-10 | 株式会社村田制作所 | Flow detector |
| CN104596605A (en) * | 2015-02-04 | 2015-05-06 | 江苏多维科技有限公司 | Magnetic automation flow recorder |
| CN204902917U (en) * | 2015-07-20 | 2015-12-23 | 谈晓彬 | Liquid seal water gauge electron direct reading character wheel box |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127363A (en) * | 2017-12-21 | 2018-06-08 | 宁波东海仪表水道有限公司 | For four or eight teeth to be sent into the device of character wheel storehouse housing |
| CN108127363B (en) * | 2017-12-21 | 2019-05-07 | 宁波东海仪表水道有限公司 | For four or eight teeth to be sent into the device of character wheel storehouse shell |
| CN108362348A (en) * | 2018-04-26 | 2018-08-03 | 湖南常德牌水表制造有限公司 | A kind of water meter device |
| CN108362348B (en) * | 2018-04-26 | 2023-12-22 | 湖南常德牌水表制造有限公司 | Water meter device |
| CN109916459A (en) * | 2019-04-18 | 2019-06-21 | 泰安轻松表计有限公司 | A kind of wet type electromechanics separation photoelectric direct reading remote transmission water meter and its application method |
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Application publication date: 20151230 |
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