CN211926988U - Sampling metering device - Google Patents
Sampling metering device Download PDFInfo
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- CN211926988U CN211926988U CN202020602102.1U CN202020602102U CN211926988U CN 211926988 U CN211926988 U CN 211926988U CN 202020602102 U CN202020602102 U CN 202020602102U CN 211926988 U CN211926988 U CN 211926988U
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- sampling
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- photoelectric sensor
- metering device
- sensor
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Abstract
The utility model relates to a sampling metering device. The utility model is characterized in that the sampling gear is arranged opposite to the photoelectric sensor, the opposite surface of the sampling gear and the photoelectric sensor is coaxially fixed with an additional piece, and the opposite surface of the additional piece and the photoelectric sensor is used as a reflecting surface to reflect light to the light source receiving sensor; the projection of the attachment on the side of the sampling gear opposite the photosensor occupies 1/2 of this end face. The utility model arranges the transmission gear between the sampling gear and the output gear, so that the sampling gear runs stably and the sampling precision is stable; the reflecting surface forms a reflecting effect on light rays emitted by the light-emitting sensor, and the reflecting surface is matched with the end face of the gear, so that the light source receiving sensor senses different reflecting effects to form different light signals, and sampling measurement is formed; the sampling character wheel and the main control board are both arranged on the same shell base, the structure is simple to install, and the sampling metering error caused by the installation error is avoided.
Description
Technical Field
The utility model belongs to the technical field of the measurement of sampling, concretely relates to sampling metering device.
Background
The sampling and metering of the existing gas meter are widely realized by adopting a mechanical counter for sampling, the mechanical counter is realized by meshing a gear set, the gas meter can be limited by the space of the gear set, the requirement on higher metering and sampling precision is difficult to realize, and the gas meter can be gradually replaced by other sampling and metering in the future;
the existing intelligent gas meter adds electromagnetic induction sampling or adds photoelectric sampling to a mechanical counter through the mechanical counter, but the electromagnetic induction is easily interfered by an external magnetic field; the photoelectric sampling has higher requirements on the sampling environment, and the photoelectric sampling cannot be influenced by external infrared rays, so that the cost of setting infrared barrier on the environment is needed.
Disclosure of Invention
An object of the utility model is to provide a gas table intelligence sampling device, the device sampling precision is high, the cost of manufacture is low, the structure space is little.
The utility model comprises an output gear of the meter, a sampling gear meshed through a transmission gear and a photoelectric sensor arranged on a main control board, wherein the transmission gear is meshed with the output gear and the sampling gear of the meter; the sampling gear is arranged opposite to the photoelectric sensor, the photoelectric sensor comprises a light-emitting sensor and a light source receiving sensor, and the light-emitting sensor emits light to the sampling gear; an additional piece is coaxially fixed on the opposite surface of the sampling gear and the photoelectric sensor, and the opposite surface of the additional piece and the photoelectric sensor is used as a reflecting surface to reflect light to the light source receiving sensor; the projection of the attachment on the side of the sampling gear opposite the photosensor occupies 1/2 of this end face.
Preferably, the additional pieces are three 60-degree sectors uniformly distributed along the shaft, or two 90-degree sectors uniformly distributed along the shaft; or four 45 sectors evenly distributed along the axis.
Furthermore, the sampling gear and the main control board are arranged on the same shell base;
furthermore, the transmission gear is set as a cone pulley or is split into a gear set.
Furthermore, the distance H between the sampling gear and the photoelectric sensor11-2.5 mm.
Further, the height difference H between the additional piece and the sampling gear2Greater than or equal to 2 mm.
Preferably, the surface of the sampling gear, which is opposite to the photoelectric sensor, is black or a frosted and dumb surface.
Preferably, the surface of the additional piece opposite to the photoelectric sensor is white, silver, golden or mirror surface.
Further, the light source receiving sensor is arranged on two sides of the light emitting sensor.
The utility model discloses simple structure, it is with low costs, production efficiency is high. A transmission gear is arranged between the sampling gear and the output gear, so that the sampling gear runs stably and the sampling precision is stable; the reflection surface forms the reflection effect to the light that light emitting sensor sent, through plane of reflection and gear end face cooperation for light source receiving sensor experiences the different optical signal that form of reflection effect, forms the sampling measurement, and sample character wheel and main control board all set up on same shell base, and simple structure installation has avoided installation error to lead to sampling measurement error.
Drawings
FIG. 1 is a general schematic view of the present invention;
FIG. 2 is a side view of the sample gear, attachment member and photosensor mounting structure of FIG. 1;
FIG. 3 is a schematic diagram showing a projection relationship between the attachment and the sampling gear in the embodiment.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, a sampling and metering device comprises an output gear 30 of a meter 10, a sampling gear 50 meshed through a transmission gear 40 and a photoelectric sensor 60 arranged on a main control board 80, wherein the sampling gear 50 and the main control board 80 are arranged on the same casing base 20; the transmission gear 40 is meshed with the output gear 20 and the sampling gear 50 of the meter 10, and the transmission gear 40 is set as a cone pulley or is split into gear sets.
The sampling gear 50 is arranged opposite to the photoelectric sensor 60 with a distance H between the two1The size of the photoelectric sensor 60 is 1-2.5 mm, the photoelectric sensor 60 comprises a light-emitting sensor 601 and a light source receiving sensor 602, and the light-emitting sensor 601 emits light to the sampling gear 50; an additional piece 70 is coaxially fixed on the opposite surface of the sampling gear 50 and the photoelectric sensor 60, and the opposite surface of the additional piece 70 and the photoelectric sensor 60 is used as a reflecting surface to reflect light to the light source receiving sensor 602; the projection of the attachment 70 on the side of the sampling gear 50 opposite the photosensor 60 occupies 1/2 of this end face. Height difference H between attachment 70 and sampling gear 502Greater than or equal to 2 mm.
As shown in fig. 3, to make the sampling more effective, the attachment 70 is three 60 ° sectors evenly distributed along the axis, or two 90 ° sectors evenly distributed along the axis; setting the opposite surfaces of the sampling gear 50 and the photoelectric sensor 60 as black or frosted and dumb surfaces; the attachment 70 is white, silver, gold, or mirrored on the side opposite the photosensor 60.
The photosensor 60 includes a light emitting sensor 601 and a light source receiving sensor 602, and the light source receiving sensor 602 is disposed on both sides of the light emitting sensor 601.
Claims (9)
1. A sampling metering device is characterized in that: the automatic sampling device comprises an output gear (30) of a meter (10), a sampling gear (50) meshed through a transmission gear (40) and a photoelectric sensor (60) arranged on a main control board (80), wherein the transmission gear (40) is meshed with the output gear (30) of the meter (10) and the sampling gear (50); the sampling gear (50) is arranged opposite to the photoelectric sensor (60), the photoelectric sensor (60) comprises a light-emitting sensor (601) and a light source receiving sensor (602), and the light-emitting sensor (601) emits light to the sampling gear (50); an additional piece (70) is coaxially fixed on the opposite surface of the sampling gear (50) and the photoelectric sensor (60), and the opposite surface of the additional piece (70) and the photoelectric sensor (60) is used as a reflecting surface to reflect light to the light source receiving sensor (602); the projection of the attachment (70) on the side of the sampling gear (50) opposite the photosensor (60) occupies 1/2 of the end face.
2. The sample metering device of claim 1, wherein: the additional parts (70) are three 60-degree sectors uniformly distributed along the shaft or two 90-degree sectors uniformly distributed along the shaft; or four 45 sectors evenly distributed along the axis.
3. The sample metering device of claim 1, wherein: the sampling gear (50) and the main control board (80) are arranged on the same shell base (20).
4. The sample metering device of claim 1, wherein: the transmission gear (40) is arranged as a cone pulley or is split into gear sets.
5. The sample metering device of claim 1, wherein: the distance H between the sampling gear (50) and the photoelectric sensor (60)11-2.5 mm.
6. The sample metering device of claim 1, wherein: the height difference H between the additional piece (70) and the sampling gear (50)2Greater than or equal to 2 mm.
7. The sample metering device of claim 1, wherein: the opposite surfaces of the sampling gear (50) and the photoelectric sensor (60) are set to be black or frosted and dumb surfaces.
8. The sample metering device of claim 1, wherein: the opposite surfaces of the additional piece (70) and the photoelectric sensor (60) are white, silver, golden or mirror surfaces.
9. The sample metering device of claim 1, wherein: the light source receiving sensors (602) are arranged on two sides of the light emitting sensor (601).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020602102.1U CN211926988U (en) | 2020-04-21 | 2020-04-21 | Sampling metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020602102.1U CN211926988U (en) | 2020-04-21 | 2020-04-21 | Sampling metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211926988U true CN211926988U (en) | 2020-11-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020602102.1U Active CN211926988U (en) | 2020-04-21 | 2020-04-21 | Sampling metering device |
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| Country | Link |
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| CN (1) | CN211926988U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340362A (en) * | 2021-06-25 | 2021-09-03 | 浙江威星智能仪表股份有限公司 | Photoelectric sampling device, metering gauge and photoelectric sampling method |
-
2020
- 2020-04-21 CN CN202020602102.1U patent/CN211926988U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340362A (en) * | 2021-06-25 | 2021-09-03 | 浙江威星智能仪表股份有限公司 | Photoelectric sampling device, metering gauge and photoelectric sampling method |
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