CN204988405U - Accurate direct - reading photoelectric water meter of discernment - Google Patents
Accurate direct - reading photoelectric water meter of discernment Download PDFInfo
- Publication number
- CN204988405U CN204988405U CN201520725567.5U CN201520725567U CN204988405U CN 204988405 U CN204988405 U CN 204988405U CN 201520725567 U CN201520725567 U CN 201520725567U CN 204988405 U CN204988405 U CN 204988405U
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- CN
- China
- Prior art keywords
- printing opacity
- hole slot
- water meter
- opacity hole
- arc printing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses an accurate direct - reading photoelectric water meter of discernment, photoelectric direct -reading device and measurement structure inside it includes watchcase, watch glasses and is located the watchcase, metering mechanism including the code character wheel, the code character wheel include spoke (2) and wheel hub (3), be provided with oval arc light trap groove (1), short circular arc light trap groove (4) and third circular arc light trap groove (6) on the same circumference of spoke (2), be provided with at least one in the third circular arc light trap groove (6) and swell (5), oval arc light trap groove (1), short circular arc light trap groove (4) and third circular arc light trap groove (6) all be provided with the printing opacity piece. The utility model discloses a structure, simple structure to reduce the processing degree of difficulty, be fit for batch production, and have the printing opacity piece in three light trap department to making the character wheel wholly become solid structure, having solved the problem that has the bubble in the light path, eliminated the refraction phenomenon on the smooth propagation path, signal transmission is more stable.
Description
Technical field
The utility model relates to one and identifies photoelectric direct-reading water meter accurately.
Background technology
The character wheel of current employing utilizes reflective and transmission-type all to have.Wherein reflective character wheel processing request is high and reliability is not high; The useful individual pen of transmission-type and two circle are slotted, and still do not adopt special-shaped hole slot to solve the coded system of 0,9 carry issue by the coding increasing critical localisation at present.
Even if there is fluting also have following problem: light is can reflect by light during different medium, and diffuse reflection can occur by during medium that refractive index is large, such as optical fiber is exactly this principle; May reflect during by filling alveolate solution, reflecting, a series of phenomenon such as scattering such as light-emitting toy rod etc.Refraction effect directly causes optical path direction deviation, and light dies down, so that Signal transmissions is unstable, the status requirement of sensitizing tube and photosensitive tube high (slightly displacement will not receive signal) for photoelectricity water meter.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides one to identify photoelectric direct-reading water meter accurately.
The purpose of this utility model is achieved through the following technical solutions: one identifies photoelectric direct-reading water meter accurately, it comprises watchcase, watch glasses and be positioned at photoelectric direct-reading apparatus and the measurement structure of watchcase inside, described metering mechanism comprises coding print wheel, described coding print wheel comprises spoke and wheel hub, the same of spoke is circumferentially provided with oval arc printing opacity hole slot, short circular arc printing opacity hole slot and three-arc printing opacity hole slot, at least one projection is provided with in three-arc printing opacity hole slot, wherein the length of three-arc printing opacity hole slot is greater than short circular arc printing opacity hole slot and is less than oval arc printing opacity hole slot simultaneously, described oval arc printing opacity hole slot, short circular arc printing opacity hole slot and three-arc printing opacity hole slot are provided with printing opacity block.
Described photoelectric direct-reading apparatus comprises communication device, single-chip microcomputer, at least one luminotron and at least one receiving tube, and the both sides being arranged on character wheel divided equally respectively by described luminotron and receiving tube along same circumference.
The thickness of described printing opacity block and oval arc printing opacity hole slot, short circular arc printing opacity hole slot are identical with the degree of depth of three-arc printing opacity hole slot.
Described luminotron is infrared light emitting diode, and described receiving tube is infrared light reception diode.
Described single-chip microcomputer adopts ATmega48PA.
Described communication device is provided with RS485 or M-BUS communication interface.
Described printing opacity block is by the printing opacity block of high grade of transparency poured with epoxy resin.
The central angle of described oval arc printing opacity hole slot is 90 ° ± 5 °.
The central angle of described short circular arc printing opacity hole slot is 30 ° ± 10 °.
The central angle of described projection is 9 ° to 90 °.
The beneficial effects of the utility model are: structure of the present utility model, the digital signal supplied for electronic unit identification that can be produced 32 groups of different codings by the optoelectronic induction device being arranged on character wheel both sides is read, thus reach the effect of accuracy of reading, its structure is simple, thus reduction difficulty of processing, be applicable to batch production; And have printing opacity block at three light hole places, thus make character wheel entirety become entity structure, solve problem light path existing bubble, eliminate the refraction effect on propagation path of light, Signal transmissions is more stable.
Accompanying drawing explanation
Fig. 1 is coding print wheel structural representation of the present utility model;
Fig. 2 is photoelectric direct-reading apparatus structured flowchart;
In figure, 1-oval arc printing opacity hole slot, 2-spoke, 3-wheel hub, 4-short circular arc printing opacity hole slot, 5-projection, 6-three-arc printing opacity hole slot.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
One identifies photoelectric direct-reading water meter accurately, it comprises watchcase, watch glasses and be positioned at photoelectric direct-reading apparatus and the measurement structure of watchcase inside, described metering mechanism comprises coding print wheel, as shown in Figure 1, described coding print wheel comprises spoke 2 and wheel hub 3, the same of spoke 2 is circumferentially provided with oval arc printing opacity hole slot 1, short circular arc printing opacity hole slot 4 and three-arc printing opacity hole slot 6, at least one projection 5 is provided with in three-arc printing opacity hole slot 6, wherein the length of three-arc printing opacity hole slot 6 is greater than short circular arc printing opacity hole slot 4 and is less than oval arc printing opacity hole slot 1 simultaneously, described oval arc printing opacity hole slot 1, short circular arc printing opacity hole slot 4 and three-arc printing opacity hole slot 6 are provided with printing opacity block.
As shown in Figure 2, described photoelectric direct-reading apparatus comprises communication device, single-chip microcomputer, at least one luminotron and at least one receiving tube, and the both sides being arranged on character wheel divided equally respectively by described luminotron and receiving tube along same circumference.
The thickness of described printing opacity block and oval arc printing opacity hole slot 1, short circular arc printing opacity hole slot 4 are identical with the degree of depth of three-arc printing opacity hole slot 6.
Described luminotron is infrared light emitting diode, and described receiving tube is infrared light reception diode.
Described single-chip microcomputer adopts ATmega48PA.
Described communication device is provided with RS485 or M-BUS communication interface.
Described printing opacity block is by the printing opacity block of high grade of transparency poured with epoxy resin.
The central angle of described oval arc printing opacity hole slot 1 is 90 ° ± 5 °.
The central angle of described short circular arc printing opacity hole slot 4 is 30 ° ± 10 °.
The central angle of described projection 5 is 9 ° to 90 °.
Claims (10)
1. one kind identifies photoelectric direct-reading water meter accurately, it comprises watchcase, watch glasses and be positioned at photoelectric direct-reading apparatus and the measurement structure of watchcase inside, described metering mechanism comprises coding print wheel, described coding print wheel comprises spoke (2) and wheel hub (3), the same of spoke (2) is circumferentially provided with oval arc printing opacity hole slot (1), short circular arc printing opacity hole slot (4) and three-arc printing opacity hole slot (6), at least one projection (5) is provided with in three-arc printing opacity hole slot (6), wherein the length of three-arc printing opacity hole slot (6) is greater than short circular arc printing opacity hole slot (4) and is less than oval arc printing opacity hole slot (1) simultaneously, it is characterized in that: described oval arc printing opacity hole slot (1), short circular arc printing opacity hole slot (4) and three-arc printing opacity hole slot (6) are provided with printing opacity block.
2. one according to claim 1 identifies photoelectric direct-reading water meter accurately, it is characterized in that: described photoelectric direct-reading apparatus comprises communication device, single-chip microcomputer, at least one luminotron and at least one receiving tube, and the both sides being arranged on character wheel divided equally respectively by described luminotron and receiving tube along same circumference.
3. one according to claim 1 identifies photoelectric direct-reading water meter accurately, it is characterized in that: the thickness of described printing opacity block and oval arc printing opacity hole slot (1), short circular arc printing opacity hole slot (4) are identical with the degree of depth of three-arc printing opacity hole slot (6).
4. one according to claim 2 identifies photoelectric direct-reading water meter accurately, it is characterized in that: described luminotron is infrared light emitting diode, and described receiving tube is infrared light reception diode.
5. one according to claim 2 identifies photoelectric direct-reading water meter accurately, it is characterized in that: described single-chip microcomputer adopts ATmega48PA.
6. one according to claim 2 identifies photoelectric direct-reading water meter accurately, it is characterized in that: described communication device is provided with RS485 or M-BUS communication interface.
7. one according to claim 1 identifies photoelectric direct-reading water meter accurately, it is characterized in that: described printing opacity block is by the printing opacity block of high grade of transparency poured with epoxy resin.
8. one according to claim 1 identifies photoelectric direct-reading water meter accurately, it is characterized in that: the central angle of described oval arc printing opacity hole slot (1) is 90 ° ± 5 °.
9. one according to claim 1 identifies photoelectric direct-reading water meter accurately, it is characterized in that: the central angle of described short circular arc printing opacity hole slot (4) is 30 ° ± 10 °.
10. one according to claim 1 identifies photoelectric direct-reading water meter accurately, it is characterized in that: the central angle of described projection (5) is 9 ° to 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725567.5U CN204988405U (en) | 2015-09-18 | 2015-09-18 | Accurate direct - reading photoelectric water meter of discernment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520725567.5U CN204988405U (en) | 2015-09-18 | 2015-09-18 | Accurate direct - reading photoelectric water meter of discernment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204988405U true CN204988405U (en) | 2016-01-20 |
Family
ID=55122764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520725567.5U Expired - Fee Related CN204988405U (en) | 2015-09-18 | 2015-09-18 | Accurate direct - reading photoelectric water meter of discernment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204988405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798069A (en) * | 2021-04-15 | 2021-05-14 | 山东科技职业学院 | Photoinduction teletransmission water gauge |
-
2015
- 2015-09-18 CN CN201520725567.5U patent/CN204988405U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798069A (en) * | 2021-04-15 | 2021-05-14 | 山东科技职业学院 | Photoinduction teletransmission water gauge |
| CN112798069B (en) * | 2021-04-15 | 2021-08-13 | 山东科技职业学院 | Photoinduction teletransmission water gauge |
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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: 20160120 Termination date: 20200918 |