CN215413887U - Photoelectric counter capable of preventing light interference - Google Patents
Photoelectric counter capable of preventing light interference Download PDFInfo
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- CN215413887U CN215413887U CN202120913314.6U CN202120913314U CN215413887U CN 215413887 U CN215413887 U CN 215413887U CN 202120913314 U CN202120913314 U CN 202120913314U CN 215413887 U CN215413887 U CN 215413887U
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- photoelectric
- counter
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- wheel set
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Abstract
The utility model relates to a photoelectric counter capable of preventing light interference. The display wheel set comprises display wheels and shafts, wherein the display wheels are uniformly distributed on the shafts, and light shading parts are fixedly arranged in the middle of two adjacent display wheels in a clearance mode; the photoelectric signal acquisition circuit board assembly is fixed on the counter bracket, and the photoelectric signal acquisition circuit board assembly is arranged in the gap between the middle parts of two adjacent display wheels and corresponds to the shading pieces one by one; the carry wheel set is meshed with the display wheel set, and the driving wheel is meshed with the first wheel of the display wheel set. The photoelectric counter can shield the light interference at the most extreme angle, so that the light interference at each angle can be shielded, and the reliability of the sampling data of the photoelectric counter is improved; the structure can be optimized and improved by adding a shading part material on the basis of the original photoelectric counter, and the improvement cost is low; the installation mode of the shading part is consistent with the installation mode of the original character wheel, so that the shading part is convenient to produce and install and convenient to upgrade and reform.
Description
Technical Field
The utility model belongs to the technical field of metering of instruments and meters, and particularly relates to a photoelectric counter capable of preventing light interference.
Background
Along with the development of the intelligent gas industry, the market share of the intelligent gas meter is higher and higher, and the basic form is that a control device is additionally arranged on the basis of the traditional mechanical base meter, so that the problem of data acquisition is firstly faced. The current commonly used acquisition modes are mainly Hall pulse type and photoelectric direct reading type. In the photoelectric direct-reading sampling mode, the light sensing element is easily affected by external light sources such as sunlight, and therefore sampling data distortion is caused.
Disclosure of Invention
The utility model aims to provide a photoelectric counter capable of preventing light interference.
The utility model comprises a counter support, a shading part, a carry wheel set, a display wheel set, a photoelectric signal acquisition circuit board component and a driving wheel. The display wheel set comprises display wheels and shafts, the display wheels are uniformly distributed on the shafts, and light shading pieces are fixedly arranged in the middle of two adjacent display wheels in a gap manner;
the photoelectric signal acquisition circuit board assembly is fixed on the counter support 1, photoelectric receiving and transmitting plates are uniformly distributed on the photoelectric signal acquisition circuit board assembly, are arranged in the gaps between the middle parts of two adjacent display wheels and correspond to the shading pieces one by one; the carry wheel set is meshed with the display wheel set, and the driving wheel is meshed with the first wheel of the display wheel set.
The shading part is sleeved on the shaft through a middle opening, the bottom of the shading part is contacted with the top of the corresponding photoelectric receiving and transmitting plate, and the shading part is limited.
The side wall of the counter support is provided with a positioning hole, and the shaft is fixed on the counter support through the positioning hole.
The photoelectric signal acquisition circuit board component is fixed on the counter bracket through the matching of a screw and a hole.
The photoelectric counter can shield the light interference at the most extreme angle, so that the light interference at each angle can be shielded, and the reliability of the sampling data of the photoelectric counter is greatly improved; the structure can be optimized and improved by adding a shading part material on the basis of the original photoelectric counter, and the improvement cost is low; the installation mode of the shading part is consistent with the installation mode of the original character wheel, so that the shading part is convenient to produce and install and convenient to upgrade and reform.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is a schematic assembly of the present invention;
FIG. 3 is a partial perspective view of the present invention;
FIG. 4 is a cross-sectional view of an effect of a counter assembly under a simulated extreme light source.
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, a photoelectric counter for preventing light interference includes a counter support 1, a light shielding member 2, a carry wheel set 3, a display wheel set 4, a photoelectric signal obtaining circuit board assembly 5 and a driving wheel 6. As shown in fig. 2, the display wheel set 4 includes a display wheel 4.1 and a shaft 4.2, the display wheel 4.1 is uniformly distributed on the shaft 4.2, and the light shading member 2 is arranged in the middle of two adjacent display wheels 4.1. In the embodiment, the light shading part 2 is sleeved on the shaft 4.2 through a middle opening, the side wall of the counter support 1 is provided with a positioning hole 1.1, and the shaft 4.2 is fixed through the positioning hole 1.1.
As shown in fig. 3, the photoelectric signal acquisition circuit board assembly 5 is fixed on the counter support 1 by the cooperation of the screw and the hole 5.3, so that the photoelectric signal acquisition circuit board assembly 5.2 just props against the light shielding member 2, and the shaft 4.2 is fixed in the rotating process.
The carry wheel set 3 is meshed with the display wheel set 4, and the transmission wheel 6 is meshed with the first wheel of the display wheel set 4.
The working principle is as follows: as shown in fig. 4, when the light source enters the counter through the display window 1.2 from the leftmost side, the light is effectively blocked from entering the photoelectric transceiving plate 5.2 because the left display character wheel 4.1 and the light shielding sheet 2 are overlapped and staggered; when light 1.2 enters the counter from the rightmost transparent display window, the right display character wheel 4.1 and the light shielding sheet 2 are overlapped and staggered, so that light is effectively prevented from entering the photoelectric transceiver board 5.2.
Claims (4)
1. A photoelectric counter for preventing light interference is characterized in that: the device comprises a counter bracket, a shading part, a carry wheel set, a display wheel set, a photoelectric signal acquisition circuit board assembly and a driving wheel; the display wheel set comprises display wheels and shafts, the display wheels are uniformly distributed on the shafts, and light shading pieces are fixedly arranged in the middle of two adjacent display wheels in a gap manner;
the photoelectric signal acquisition circuit board assembly is fixed on the counter support, photoelectric receiving and transmitting plates are uniformly distributed on the photoelectric signal acquisition circuit board assembly, are arranged in the gaps between the middle parts of two adjacent display wheels and correspond to the shading pieces one by one; the carry wheel set is meshed with the display wheel set, and the driving wheel is meshed with the first wheel of the display wheel set.
2. The photoelectric counter of claim 1, characterized in that: the shading part is sleeved on the shaft through a middle opening, the bottom of the shading part is contacted with the top of the corresponding photoelectric receiving and transmitting plate, and the shading part is limited.
3. The photoelectric counter of claim 1, characterized in that: the side wall of the counter support is provided with a positioning hole, and the shaft is fixed on the counter support through the positioning hole.
4. The photoelectric counter of claim 1, characterized in that: the photoelectric signal acquisition circuit board component is fixed on the counter bracket through the matching of a screw and a hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120913314.6U CN215413887U (en) | 2021-04-29 | 2021-04-29 | Photoelectric counter capable of preventing light interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120913314.6U CN215413887U (en) | 2021-04-29 | 2021-04-29 | Photoelectric counter capable of preventing light interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215413887U true CN215413887U (en) | 2022-01-04 |
Family
ID=79673791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120913314.6U Active CN215413887U (en) | 2021-04-29 | 2021-04-29 | Photoelectric counter capable of preventing light interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215413887U (en) |
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2021
- 2021-04-29 CN CN202120913314.6U patent/CN215413887U/en active Active
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