CN210426663U - Sampling metering device based on infrared reflection - Google Patents
Sampling metering device based on infrared reflection Download PDFInfo
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- CN210426663U CN210426663U CN201921957836.5U CN201921957836U CN210426663U CN 210426663 U CN210426663 U CN 210426663U CN 201921957836 U CN201921957836 U CN 201921957836U CN 210426663 U CN210426663 U CN 210426663U
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Abstract
The utility model relates to a based on infrared reflection sampling metering device. The photoelectric reflection type mechanical meter is characterized by comprising a mechanical meter transmission gear, a photoelectric reflection wheel, a main control circuit board and a reflection type photoelectric switch, wherein any mechanical meter transmission gear can be used as the photoelectric reflection wheel, the main control circuit board and the photoelectric reflection wheel are arranged in parallel, the reflection type photoelectric switch is arranged on the main control circuit board, and the reflection type photoelectric switch is matched with the photoelectric reflection wheel in position. The utility model realizes photoelectric sampling by matching the reflection-type photoelectric switch with the photoelectric reflection wheel, and avoids electromagnetic interference; the photoelectric reflecting wheel can be set as any mechanical watch transmission gear, and the photoelectric reflecting wheel can be formed by setting any mechanical watch transmission gear into a black-white alternating fan shape; the reflection-type photoelectric switch is positioned in a closed space formed by the main control circuit board and the mechanical meter, so that interference light cannot reach a transmission path of an emitter and a receiver of the reflection-type photoelectric switch, and the metering stability is met.
Description
Technical Field
The utility model relates to a based on infrared reflection sampling metering device.
Background
With the progress of the technology, while mechanical metering is kept, electronic metering modes are gradually popularized and applied, more sampling modes are gradually applied to the field of intelligent gas meters, and common sampling modes include magnetic coupling, photoelectric coupling, camera direct reading, photoelectric direct reading and the like. The several coupling modes are different according to application scenes and application technical means, and have respective advantages and disadvantages:
first, magnetic coupling sampling: the risk of measurement instability or failure due to external magnetic factory interference exists;
second, photoelectric direct-reading measurement mode: the metering photosensitive device is positioned in a visible area of the character wheel, and the risk of interference of external strong light exists;
thirdly, a direct-reading mode of camera shooting: the cost of devices such as a camera is high, and the overall cost is high;
fourthly, the sampling position is unique, the sampling positions of different mechanical meters are fixed, and special structural parts and sampling circuit boards need to be customized again;
fifthly, when the sampling precision is required to be improved to be higher than 0.001m in the same machine, a special structural part and a sampling circuit board are required to be customized again.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a photoelectric sampling, simple structure, low cost, shorten the technology circuit, improve sampling signal reliability simultaneously, improve production efficiency's technical scheme based on infrared reflection sampling metering device.
The sampling and metering device based on infrared reflection is characterized by comprising a mechanical meter transmission gear, a photoelectric reflection wheel, a main control circuit board and a reflection type photoelectric switch, wherein any mechanical meter transmission gear can be used as the photoelectric reflection wheel, the main control circuit board and the photoelectric reflection wheel are arranged in parallel, the reflection type photoelectric switch is arranged on the main control circuit board, and the reflection type photoelectric switch is matched with the photoelectric reflection wheel in position.
The sampling and metering device based on infrared reflection is characterized in that the photoelectric reflection wheel is provided with a black-white alternating fan-shaped reflection surface.
The infrared reflection based sampling and metering device is characterized in that the reflection type photoelectric switch comprises an emitter and a receiver.
The sampling and metering device based on the infrared reflection is characterized by further comprising a mechanical meter and a housing, wherein a transmission gear of the mechanical meter is arranged on the mechanical meter, the housing is arranged on the mechanical meter, and a main control circuit board is arranged on the housing.
The sampling and metering device based on infrared reflection is characterized in that a mechanical counter is arranged in the housing, and the main control circuit board is positioned between the mechanical counter and a transmission gear of the mechanical counter; the tail end of the mechanical transmission gear is provided with a duplicate gear, one end of the duplicate gear is meshed with the transmission gear of the mechanical counter, and the other end of the duplicate gear is meshed with the head character wheel of the mechanical counter to drive the mechanical counter to rotate.
The sampling and metering device based on infrared reflection is characterized in that the mechanical counter comprises a mechanical counting wheel and a carry wheel, the mechanical counting wheel sequentially penetrates through a word wheel shaft from a low position to a high position, the carry wheel sequentially penetrates through a carry wheel shaft from the low position to the high position, the word wheel shaft is matched and fixed with a word wheel shaft fixing hole formed in the housing, and the carry wheel shaft is matched and fixed with a carry wheel shaft fixing hole formed in the housing.
The sampling and metering device based on infrared reflection is characterized in that the reflection-type photoelectric switch is directly welded on a main control circuit board, and no independent metering circuit board is provided.
The sampling and metering device based on infrared reflection is characterized in that the reflection-type photoelectric switch is positioned on the reverse side of the main control circuit board, and the reflection-type photoelectric switch is positioned in a closed space formed by the main control circuit board and the mechanical watch.
The sampling and metering device based on infrared reflection is characterized in that a main control circuit board fixing hole is formed in the main control circuit board, a main control circuit board fixing column matched with the main control circuit board fixing hole is formed in the housing, and the main control circuit board and the housing are installed through the bolt connected with the main control circuit board fixing column in a threaded mode.
The sampling and metering device based on infrared reflection is characterized in that a housing fixing column is arranged on the mechanical meter, a housing fixing hole is formed in the housing, and the housing and the mechanical meter are installed through the threaded connection of a screw and the housing fixing column.
The utility model realizes photoelectric sampling by matching the reflection-type photoelectric switch with the photoelectric reflection wheel, and avoids electromagnetic interference; the photoelectric reflecting wheel can be set as any mechanical meter transmission gear, the photoelectric reflecting wheel can be formed by setting any mechanical meter transmission gear into a black-white alternating fan shape, and the precision can be submitted by adjusting the positions of the reflective photoelectric switch and the photoelectric reflecting wheel; the reflection-type photoelectric switch is positioned in a closed space formed by the main control circuit board and the mechanical meter, so that interference light cannot reach a transmission path of an emitter and a receiver of the reflection-type photoelectric switch, and the metering stability is met.
Drawings
Fig. 1 is a schematic view of a mechanical counter according to the present invention;
FIG. 2 is a diagram of the main control circuit board, mechanical counter and housing mounting;
fig. 3 is a schematic view of the position of the photoelectric reflection wheel of the present invention;
fig. 4 is a schematic view of a reflective photoelectric switch according to the present invention;
FIG. 5 is a schematic view of a photo-electric reflective wheel;
FIG. 6 is a schematic view of the mechanical watch installation of the present invention;
in the figure: 1-character wheel shaft, 2-mechanical counter head character wheel, 3-mechanical counter number wheel, 4-carry wheel shaft, 5-carry wheel, 6-cover, 7-main control circuit board fixing column, 8-main control circuit board fixing hole, 9-screw, 10-main control circuit board, 11-reflection type photoelectric switch, 12-character wheel shaft fixing hole, 13-mechanical counter, 14-carry wheel shaft fixing hole, 15-duplicate gear, 16-photoelectric reflection wheel, 17-mechanical meter transmission gear, 18-emitter, 19-receiver, 20-black surface, 21-white surface, 22-mechanical meter, 23-cover fixing column and 24-cover fixing hole.
Detailed Description
The invention will be further explained with reference to the drawings in the following description:
the utility model provides a photoelectric sampling technique does not relate to the magnetic sensing device, so can not receive magnetic interference. Meets the requirements on magnetic interference resistance in the national standard GB/T6968.
The utility model discloses a based on infrared reflection sampling metering device, including mechanical table drive gear 17, photoelectric reflection wheel 16, main control circuit board 10 and reflection photoelectric switch 11, photoelectric reflection wheel 16 can be set for arbitrary mechanical table drive gear 17, rotates in step with the mechanical table, main control circuit board 10 and photoelectric reflection wheel 16 parallel arrangement, and reflection photoelectric switch 11 sets up on main control circuit board 10, and the installation back is accomplished to main control circuit board, reflection photoelectric switch 11 and 16 position phase-matchs of photoelectric reflection wheel.
The photoelectric reflecting wheel 16 is provided with a sector reflecting surface with alternate black and white, a white surface 21 and a black surface 20 of the photoelectric reflecting wheel are uniformly distributed, when the white surface rotates to a position between the emitting electrode and the receiving electrode of the reflection type photoelectric switch, an 'off' signal is generated, when the black surface rotates to a position between the emitting electrode and the receiving electrode of the reflection type photoelectric switch, a reverse 'on' signal is formed, and continuous signals are formed in a periodic cycle mode.
Furthermore, the photoelectric reflecting wheel is made of a non-light-conducting material, when the white surface of the photoelectric reflecting wheel is rotated to a position between the emitter and the receiver of the reflective photoelectric switch, light emitted by the emitter of the reflective photoelectric switch can be reflected, at the moment, the receiver of the reflective photoelectric switch can be ensured to receive light signals, when the black surface of the photoelectric reflecting wheel is rotated to a position between the emitter and the receiver of the reflective photoelectric switch, light emitted by the emitter of the reflective photoelectric switch can be absorbed, and at the moment, the receiver of the reflective photoelectric switch can be ensured not to receive light signals.
Further, the photoelectric reflection wheel is in a uniform equal sector shape, namely the ratio of a white surface to a black surface is 1: 1, and is axially and uniformly distributed.
Furthermore, the reflection-type photoelectric switch 11 is positioned on the reverse side of the main control circuit board 10, the housing 6 protects the periphery, the mechanical watch 22 is arranged on the reverse side, and the reflection-type photoelectric switch is positioned in a closed space formed by the main control circuit board and the mechanical watch, so that the interference light can not reach the transmission path of the emitting electrode 18 and the receiving electrode 19 of the reflection-type photoelectric switch, and the metering stability is met.
Furthermore, the reflection-type photoelectric switch is far away from a visible area of the character wheel and is shielded by structures such as a housing, so that external strong light from the front cannot irradiate on transmission paths of the emitter and the receiver to cause signal interference, and the metering stability is achieved.
Furthermore, the photoelectric reflection wheel 16 adopts a mechanical watch transmission gear 17 to process the surface into a black and white alternating fan-shaped reflection surface, which not only meets the function of gear transmission, but also can be used as a sampling wheel, i.e. one wheel has two functions, the reflection type photoelectric switch 11 is an integrated photoelectric switch, and an emitter 18 and a receiver 19 are integrated.
Further, when it is desired to increase the sampling accuracy above 0.001m, the sampling accuracy may be increased by combining one or more of the following methods. Increasing the logarithm m of the black surface 20 and the white surface 21 on the photoelectric reflection wheel, and increasing the number n of the reflection type photoelectric switches, wherein the coefficient K can be expressed as K = mn. The precision at this time is K times of the original precision.
Furthermore, the photoelectric reflection wheel 16 can be arranged on any one of the transmission gears 17 of the mechanical watch, when the sampling precision is improved again, only the position of the reflection type photoelectric switch 11 needs to be adjusted, and the improvement precision is
，
The gear position is adjusted to be the original gear ratio change value of the sampling wheel position.
The utility model discloses still include mechanical table and housing, mechanical table drive gear sets up on mechanical table, and the housing setting is on mechanical table, and the main control circuit board sets up on the housing. A mechanical counter 13 is arranged in the housing 6, and the main control circuit board 10 is positioned between the mechanical counter and a transmission gear of the mechanical counter; the tail end of the mechanical transmission gear 17 is provided with a duplicate gear 15, one end of the duplicate gear is meshed with the transmission gear of the mechanical counter, and the other end of the duplicate gear is meshed with the head character wheel of the mechanical counter to drive the mechanical counter to rotate.
The utility model discloses a mechanical counter includes mechanical counting number wheel 3 and carry wheel 5, and mechanical counter head word wheel 2 is located the head of mechanical counting number wheel, and mechanical counting number wheel passes word shaft 1 from the low level to the high level in proper order, and carry wheel passes carry wheel shaft 4 from the low level to the high level in proper order, and word shaft 1 is fixed with the cooperation of word shaft fixed orifices 12 that sets up on housing 6, and carry wheel shaft 4 is fixed with the cooperation of carrying wheel shaft fixed orifices 14 that sets up on the housing.
The utility model discloses a reflection type photoelectric switch beading is on the main control circuit board, does not have the independent metering circuit board, greatly reduced processing cost and stability.
The utility model discloses a be provided with main control circuit board fixed orifices 8 on the main control circuit board, be provided with on the housing with 8 assorted main control circuit board fixed columns 7 of main control circuit board fixed orifices, realize the installation of main control circuit board 10 and housing 6 through screw 9 and 7 spiro unions of main control circuit board fixed columns.
The utility model discloses a be provided with housing fixed column 23 on the machinery table 22, be provided with housing fixed orifices 24 on the housing, realize housing 6 and machinery table 22's installation through screw and housing fixed column 23 spiro union.
Claims (10)
1. A sampling and metering device based on infrared reflection is characterized by comprising a mechanical meter transmission gear, a photoelectric reflection wheel, a main control circuit board and a reflection type photoelectric switch, wherein any mechanical meter transmission gear can be used as the photoelectric reflection wheel, the main control circuit board and the photoelectric reflection wheel are arranged in parallel, the reflection type photoelectric switch is arranged on the main control circuit board, and the reflection type photoelectric switch is matched with the photoelectric reflection wheel in position.
2. The infrared reflection based sampling and metering device of claim 1, wherein the photoelectric reflecting wheel is provided with a sector-shaped reflecting surface which is black and white alternately.
3. The infrared reflection based sampling and metering device of claim 1, wherein the reflective photoelectric switch comprises an emitter and a receiver.
4. The sampling and metering device based on infrared reflection according to claim 1, further comprising a mechanical watch and a cover case, wherein a transmission gear of the mechanical watch is arranged on the mechanical watch, the cover case is arranged on the mechanical watch, and the main control circuit board is arranged on the cover case.
5. The sampling and metering device based on infrared reflection according to claim 4, wherein a mechanical counter is arranged in the housing, and the main control circuit board is positioned between the mechanical counter and a transmission gear of the mechanical counter; the tail end of the transmission gear of the mechanical meter is provided with a duplicate gear, one end of the duplicate gear is meshed with the transmission gear of the mechanical meter, and the other end of the duplicate gear is meshed with a head character wheel of the mechanical counter to drive the mechanical counter to rotate.
6. The infrared reflection based sampling and metering device of claim 5, wherein the mechanical counter comprises a mechanical counting wheel and a carry wheel, the mechanical counting wheel sequentially penetrates through a word wheel shaft from a low position to a high position, the carry wheel sequentially penetrates through a carry wheel shaft from the low position to the high position, the word wheel shaft is matched and fixed with a word wheel shaft fixing hole formed in the housing, and the carry wheel shaft is matched and fixed with a carry wheel shaft fixing hole formed in the housing.
7. The infrared reflection based sampling and metering device of claim 1, wherein the reflective photoelectric switch is directly soldered on the main control circuit board without a separate metering circuit board.
8. The infrared reflection based sampling and metering device of claim 1, wherein the reflective photoelectric switch is located on the reverse side of the main control circuit board, and the reflective photoelectric switch is located in the sealed space formed by the main control circuit board and the mechanical watch.
9. The sampling and metering device based on infrared reflection according to claim 4, wherein the main control circuit board is provided with a main control circuit board fixing hole, the housing is provided with a main control circuit board fixing column matched with the main control circuit board fixing hole, and the main control circuit board and the housing are mounted by screwing a screw with the main control circuit board fixing column.
10. The sampling and metering device based on infrared reflection according to claim 4, wherein the mechanical watch is provided with a housing fixing column, the housing is provided with a housing fixing hole, and the housing and the mechanical watch are installed by screwing a screw and the housing fixing column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921957836.5U CN210426663U (en) | 2019-11-13 | 2019-11-13 | Sampling metering device based on infrared reflection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921957836.5U CN210426663U (en) | 2019-11-13 | 2019-11-13 | Sampling metering device based on infrared reflection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210426663U true CN210426663U (en) | 2020-04-28 |
Family
ID=70369593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921957836.5U Active CN210426663U (en) | 2019-11-13 | 2019-11-13 | Sampling metering device based on infrared reflection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210426663U (en) |
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2019
- 2019-11-13 CN CN201921957836.5U patent/CN210426663U/en active Active
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