Sampling and counting device of diaphragm gas meter

Abstract

The utility model relates to the technical field of diaphragm gas meters, and discloses a diaphragm gas meter sampling and counting device which comprises a gas meter body, a diaphragm and a transmission device are arranged in the gas meter body, an output shaft of the transmission device extends out of the gas meter body from the side face, and an output wheel is arranged at the end, located outside the gas meter body, of the output shaft. A sampling wheel is arranged on one side of the output wheel, the sampling wheel is meshed with the output wheel, magnetic steel is arranged on the sampling wheel, a circuit board covers the sampling wheel, a sampling sensor is arranged at the position, opposite to the sampling wheel, of one side, facing the sampling wheel, of the circuit board, the sampling sensor is in wireless connection with the sampling wheel, and a display screen is arranged on the other side of the circuit board. According to the utility model, the output wheel and the sampling wheel are arranged outside the gas meter main body, and the sensor is arranged outside the sampling wheel, so that the influence of internal parts and environment on data transmission can be reduced, the collected data can be corrected, the display error is reduced, and the sampling accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm gas meter technology, specifically to a diaphragm gas meter sampling and counting device. Background Technology

[0002] Natural gas is widely used in daily life as a clean energy source. Households using natural gas use gas meters to count gas volume and as the basis for payment. However, gas companies purchase gas based on standard cubic meter volume, while selling gas is based on the metered volume under actual usage conditions. This results in a supply-demand discrepancy and prevents fair metering.

[0003] Furthermore, existing diaphragm gas meters generally obtain flow pulse data from the internal mechanism. The contraction and expansion of the diaphragm, the movement of various components, and the temperature and pressure inside the meter can all affect the accuracy of the data from the mechanism, resulting in inaccurate data readings and causing losses to users or gas companies. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing diaphragm gas meters have inaccurate sampling and reading, which can cause losses to users or gas companies.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is to provide a diaphragm gas meter sampling and counting device, including a gas meter body, a diaphragm and a transmission device inside the gas meter body, an output shaft of the transmission device extending from the side of the gas meter body, an output wheel on one end of the output shaft outside the gas meter body, a sampling wheel on one side of the output wheel, the sampling wheel meshing with the output wheel, a magnet on the sampling wheel, a circuit board covering the sampling wheel, a sampling sensor on the side of the circuit board facing the sampling wheel opposite to the sampling wheel, the sampling sensor being wirelessly connected to the sampling wheel, and a display screen on the other side of the circuit board.

[0006] Optionally, a temperature and pressure sensor is installed inside the gas meter body, and the temperature and pressure sensor is connected to the circuit board.

[0007] Optionally, a counter is connected to the circuit board, and a driving device is provided between the counter and the circuit board.

[0008] Optionally, the sampling sensor is a Hall element, and the tooth ratio of the output wheel to the sampling wheel is 3:1.

[0009] Optionally, the side of the gas meter body with the circuit board is covered by a cover, the cover having an observation window and a battery compartment for powering the circuit board.

[0010] In summary, this utility model has at least one of the following beneficial effects:

[0011] 1. This utility model sets the output wheel and sampling wheel outside the main body of the gas meter, and sets a sensor outside the sampling wheel, which can reduce the influence of internal components and the environment on data transmission and improve sampling accuracy.

[0012] 2. This utility model is equipped with a temperature and pressure sensor, which can correct the collected data, reduce display errors, and make the displayed values ​​more accurate. Attached Figure Description

[0013] Figure 1 This is an exploded view of the overall structure of this utility model;

[0014] Figure 2 This is a front view structural diagram of the sampling area of ​​this utility model;

[0015] In the diagram: 1. Gas meter body; 2. Output wheel; 3. Sampling wheel; 4. Magnet; 5. Circuit board; 6. Display screen; 7. Cover; 8. Battery compartment; 9. Counter. Detailed Implementation

[0016] The following combination Figure 1-2 The present invention will be described in further detail below.

[0017] Example 1

[0018] This utility model discloses a diaphragm-type gas meter sampling and counting device, referring to... Figure 1 and Figure 2 The device includes a gas meter body 1, which contains a diaphragm and a transmission device. The output shaft of the transmission device extends from the side of the gas meter body 1. An output wheel 2 is located on one end of the output shaft outside the gas meter body 1. A sampling wheel 3 is located on one side of the output wheel 2. The sampling wheel 3 meshes with the output wheel 2. A magnet 4 is located on the sampling wheel 3. A circuit board 5 is covered on the sampling wheel 3. A sampling sensor is located on the side of the circuit board 5 facing the sampling wheel 3, opposite to the sampling wheel 3. The sampling sensor is wirelessly connected to the sampling wheel 3. A display screen 6 is located on the other side of the circuit board 5. A temperature and pressure sensor is located inside the gas meter body 1 and is connected to the circuit board 5. A cover 7 is located on the side of the gas meter body 1 where the circuit board 5 is located. The cover 7 has an observation window and a battery compartment 8 that supplies power to the circuit board 5.

[0019] In this embodiment, the gas meter has a displacement of 1.2L, the sampling sensor is a Hall element, the tooth ratio of the output wheel 2 and the sampling wheel 3 is 3:1, and there are two magnets 4 on the sampling wheel 3, which are evenly distributed on the sampling wheel 3. In use, the expansion and contraction of the diaphragm drives the internal transmission device and makes the output wheel 2 rotate. The output wheel 2 drives the sampling wheel 3 to rotate. When the magnets 4 on the sampling wheel 3 pass the Hall element, they generate a sampling signal. The circuit board 5 collects the sampling signal and the temperature and pressure signal from the temperature and pressure sensor. The circuit board 5 corrects the sampling signal according to the temperature and pressure signal and displays it on the display screen 6.

[0020] In this embodiment, the tooth ratio of the output wheel 2 and the sampling wheel 3 is 3:1. Two magnets 4 are provided. When the output wheel 2 rotates once, the sampling wheel 3 rotates three times, and the magnet 4 passes the Hall element six times. Therefore, the display screen records a value once every 0.2L.

[0021] In other embodiments, the data change cycle of the gas meter can be controlled by adjusting the tooth ratio of the output wheel 2 and the sampling wheel 3, as well as the number of magnets 4, thereby obtaining the desired recording accuracy.

[0022] Example 2

[0023] In this embodiment, a counter 9 is connected to the circuit board 5, and a driving device is provided between the counter 9 and the circuit board 5.

[0024] In this embodiment, a counter 9 is set up, and data is transmitted to the counter 9 through a driving device. Every time the sampled data changes, the circuit board 5 will use an electrical signal to drive the counter 9 to change the number. The counter 9 and the display screen 6 are used to count at the same time, and the data displayed by the two are consistent. Even when the display screen 6 is damaged, it can still record, and the usage effect is better.

[0025] The output wheel 2 and sampling wheel 3 of this utility model are set outside the gas meter body 1, and a sensor is set outside the sampling wheel 3. This can reduce the influence of internal components and environment on data transmission, correct the collected data, improve sampling accuracy, and reduce display error.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A diaphragm gas meter sampling counting device, characterized in that, The utility model relates to a gas meter body (1) is equipped with the film and transmission device in the gas meter body (1), the output shaft of transmission device stretches out from the side gas meter body (1), the output shaft is equipped with output wheel (2) on the one end of gas meter body (1) outside, output wheel (2) one side is equipped with sampling wheel (3), sampling wheel (3) is engaged with output wheel (2), sampling wheel (3) is equipped with magnetic steel (4) on, sampling wheel (3) is covered with circuit board (5), the one side of circuit board (5) towards sampling wheel (3) is equipped with sampling sensor with sampling wheel (3) opposite place, sampling sensor is wirelessly connected with sampling wheel (3), the other side of circuit board (5) is equipped with display screen (6).

2. The diaphragm gas meter sampling counting device of claim 1, wherein, The gas meter body (1) is internally provided with a temperature and pressure sensor connected with the circuit board (5).

3. The diaphragm gas meter sampling counting device of claim 2, wherein, The circuit board (5) is connected with a counter (9), and the counter (9) is provided with a driving device between the circuit board (5).

4. The diaphragm gas meter sampling counting device of claim 1, wherein, The sampling sensor is a Hall element, and the tooth number ratio of the output wheel (2) and the sampling wheel (3) is 3:

1.

5. The diaphragm gas meter sampling and counting apparatus of claim 3, wherein, The gas meter body (1) is covered with a face cover (7) on one side provided with the circuit board (5), the face cover (7) is provided with a viewing window, and the face cover (7) is further provided with a battery compartment (8) for supplying power to the circuit board (5).

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