A gas meter calibration device

Abstract

This utility model discloses a gas meter calibration device, comprising: a base; and further comprising: a moving mechanism for controlling the movement and stopping of the base on its lower side, the base being threadedly connected to a first threaded rod, and an anti-slip plate rotatably connected to the lower side of the first threaded rod; a compression tank, the outer side of which is provided with a cooling mechanism for preventing high temperature from affecting the compression tank, and the compression tank being positioned on the upper side of the base. The gas meter calibration device includes casters that allow the base to move, adjusting the position of the anti-slip plate on the lower side of the first threaded rod relative to the ground, thereby controlling the movement and stopping of the base, controlling the distance between the fixed baffle and the movable baffle, thus facilitating the clamping of the combustible gas detector and protecting it; and a diversion pipe that can divert cold water to cool the outer side of the compression tank, providing further protection.

Description

Technical Field

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

[0002] Gas meters are mandatory measuring instruments subject to national verification. Their accurate measurement is crucial to the economic interests of gas supply companies and the public. Gas meter verification is a vital step in ensuring fair gas trade settlements and protecting user rights. Its procedures, standards, methods, and supervision must strictly adhere to relevant regulations. Gas meter verification is a test conducted to ensure the accuracy and safety of gas meters. Through verification, various indicators of the gas meter can be tested and calibrated to ensure compliance with relevant standards and requirements, thereby guaranteeing the quality and safety of gas usage for users. Household gas meters are generally only verified initially, with a limited usage period and replacement upon expiration. Through standardized verification procedures and strict verification standards, the quality and safety of gas usage for users can be guaranteed.

[0003] Gas meters primarily use a volumetric metering and monetary settlement model to measure and manage household gas consumption and purchases. Taking a diaphragm gas meter as an example, it operates on the volumetric principle. A flexible diaphragm divides the metering chamber into two spaces. When the left side is filled with gas, the diaphragm moves to the right, compressing the right space; when the left side is full of gas (one unit volume), the metered volume on the right side is zero. Then, the right outlet is closed, the inlet is opened, and gas is introduced. The diaphragm moves to the left, expelling the gas from the left side; when the right side is full of gas (one unit volume), the left side also expels gas (one unit volume). In this way, the metering chamber completes the metering process for two units of gas volume.

[0004] Referring to Chinese Patent Publication No. CN221504727U, with the publication date of August 9, 2024, a bell-shaped household gas meter natural gas metering verification standard device is disclosed. This device uses a support plate on the testing platform, a compression tank connected to the return gas pipe, and a gas storage tank connected to the compression tank. The natural gas used for testing can be squeezed into the gas storage tank for storage using a combination of cylinder and compression plate. After collecting and storing the natural gas, the waste of natural gas resources can be avoided, and air pollution can also be avoided. This effectively solves the defects of the prior art, improves practicality, and can be widely used.

[0005] However, during use, this utility model has many parts and occupies a large space, making it inconvenient to move and causing some inconvenience. In addition, the extrusion plate generates heat when extruding natural gas. If the operation is frequent, it will cause the extrusion tank to heat up, thereby increasing the probability of danger and making it difficult to conduct inspection. Therefore, there is still room for further improvement.

[0006] Therefore, we propose a gas meter calibration device to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this utility model is to provide a gas meter calibration device to solve the problems mentioned in the background art. Currently, the utility model has many parts and occupies a large space, making it inconvenient to move and causing certain inconveniences in use. In addition, the extrusion plate generates heat when extruding natural gas. If the operation is frequent, the extrusion tank will heat up, thereby increasing the probability of danger and hindering the calibration process. Therefore, there is still room for further improvement.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a gas meter calibration device, comprising: a base;

[0009] Also includes:

[0010] The lower side of the base is provided with a moving mechanism for controlling the movement and stopping of the base, and the base is threadedly connected to the first threaded rod, and the lower side of the first threaded rod is rotatably connected with an anti-slip plate.

[0011] The extrusion tank is provided with a cooling mechanism on its outer side to prevent high temperature from affecting the extrusion tank, and the extrusion tank is located on the upper side of the base.

[0012] Preferably, the moving mechanism is composed of a combination of casters, a first threaded rod and an anti-slip plate. Casters are provided on the lower side of the base and are arranged in an array. A handle is provided on the upper left side of the base.

[0013] Preferably, the upper side of the base is provided with a mounting bracket, and the upper side of the mounting bracket is provided with an air inlet connection end and an air outlet connection end, and a fixing baffle is provided at the rear of the upper side of the mounting bracket.

[0014] Preferably, a movable baffle is slidably connected to the upper side of the mounting bracket, and the movable baffle is rotatably connected to the second threaded rod, and the second threaded rod is rotatably connected to the mounting bracket. Furthermore, a digital flow meter is provided on the upper side of the pipe below the mounting bracket.

[0015] Preferably, a cold water tank is provided on the upper right side of the base, and the cold water tank is connected to a water pump through a water pipe, and the water pump is located on the upper side of the base.

[0016] Preferably, the cooling mechanism is composed of a connecting pipe, a diversion pipe and a cooling frame, and the water pump is connected to the connecting pipe through a water pipe, and the connecting pipe is fixedly connected to the diversion pipe.

[0017] Preferably, the front side of the diverter is fixedly connected to the cooling frame, and the diverter is arranged in an array and the cooling frame is fixedly connected to the extrusion tank.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the gas meter metering and calibration device has casters that allow the base to move, and the positional relationship between the anti-slip plate on the lower side of the first threaded rod and the ground can be adjusted to control the movement and stopping of the base, control the distance between the fixed baffle and the movable baffle, thereby facilitating the clamping of the combustible gas detector and protecting the combustible gas detector; the diversion pipe can divert cold water, which can cool the outside of the extrusion tank and provide protection.

[0019] 1. Equipped with casters, a first threaded rod, and an anti-slip plate, the casters are arranged in an array on the lower side of the base and provide support for the base. The casters allow the base to move. Rotating the first threaded rod adjusts the position of the anti-slip plate under the first threaded rod relative to the ground, thereby controlling the movement and stopping of the base. When the anti-slip plate is in close contact with the ground, the casters stop moving; when the anti-slip plate is not in contact with the ground, the casters can move.

[0020] 2. It is equipped with a mounting bracket, an inlet connection end and an outlet connection end. A natural gas pipeline is installed on the lower side of the mounting bracket. The inlet connection end and the outlet connection end on the upper side of the mounting bracket are used to connect to the gas meter, which facilitates connection during testing and makes testing and use convenient.

[0021] 3. It is equipped with a fixed baffle, a movable baffle, and a second threaded rod. By rotating the second threaded rod, the movable baffle can be moved on the upper side of the mounting frame, thereby controlling the distance between the fixed baffle and the movable baffle, which facilitates clamping the combustible gas detector and protects the combustible gas detector.

[0022] 4. Equipped with a digital flow meter, cold water tank and water pump, the digital flow meter can verify the flow rate of natural gas, making it easy to compare with the flow rate of the gas meter, and thus measure and test the flow rate of natural gas to verify whether it is qualified;

[0023] 5. It is equipped with a connecting pipe, a diversion pipe, and a cooling frame. The cooling frame is located on the outside of the extrusion tank and is hollow. When the water pump delivers cold water from the cold water tank to the connecting pipe, the water can be diverted through the diversion pipe to cool the outside of the extrusion tank, thereby avoiding danger caused by the high temperature of the extrusion tank and playing a protective role. Attached Figure Description

[0024] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0025] Figure 2 This utility model Figure 1Enlarged structural diagram at point A in the middle;

[0026] Figure 3 This is a rear-view three-dimensional structural diagram of the present invention;

[0027] Figure 4 This is a three-dimensional structural diagram of the present invention viewed from below;

[0028] Figure 5 This is a cross-sectional structural diagram of the extrusion can of this utility model.

[0029] In the diagram: 1. Base; 2. Casters; 3. Handle; 4. First threaded rod; 5. Anti-slip plate; 6. Mounting bracket; 7. Air inlet connection; 8. Air outlet connection; 9. Fixed baffle; 10. Movable baffle; 11. Second threaded rod; 12. Digital flow meter; 13. Cold water tank; 14. Water pump; 15. Connecting pipe; 16. Diverter pipe; 17. Cooling frame; 18. Squeezing tank. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific Implementation Example 1

[0032] This embodiment is a gas meter calibration device.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a caster wheel 2 is provided on the lower side of the base 1, and the caster wheel 2 is arranged in an array. A handle 3 is provided on the upper left side of the base 1. The base 1 is threadedly connected to the first threaded rod 4. An anti-slip plate 5 is rotatably connected to the lower side of the first threaded rod 4. A mounting bracket 6 is provided on the upper side of the base 1. An air inlet connection end 7 and an air outlet connection end 8 are provided on the upper side of the mounting bracket 6. A fixed baffle 9 is provided on the upper rear side of the mounting bracket 6. A movable baffle 10 is slidably connected to the upper side of the mounting bracket 6. The movable baffle 10 is rotatably connected to the second threaded rod 11. The second threaded rod 11 is rotatably connected to the mounting bracket 6. A digital flow meter 12 is provided on the upper side of the pipe on the lower side of the mounting bracket 6.

[0034] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, a cold water tank 13 is provided on the upper right side of the base 1. The cold water tank 13 is connected to a water pump 14 through a water pipe. The water pump 14 is located on the upper side of the base 1. The water pump 14 is connected to a connecting pipe 15 through a water pipe. The connecting pipe 15 is fixedly connected to a distribution pipe 16. The front side of the distribution pipe 16 is fixedly connected to a cooling frame 17. The distribution pipes 16 are arranged in an array. The cooling frame 17 is fixedly connected to an extrusion tank 18. The extrusion tank 18 is located on the upper side of the base 1.

[0035] It should be noted that the household gas meter is placed on the mounting bracket 6, and the gas cylinder is positioned on the upper left front of the base 1. The gas inlet end of the gas meter is connected to the gas inlet connection end 7, and the gas outlet end of the gas meter is connected to the gas outlet connection end 8. Then, first open the valve on the left side of the mounting bracket 6, and then open the valve on the right side of the mounting bracket 6 to allow the natural gas in the gas cylinder to enter the gas meter. The gas meter can then measure and detect the flow rate of the natural gas. The digital flow meter 12 simultaneously detects the outflow of natural gas. After the flow has been running for a period of time, all valves are closed, and the flow rate displayed on the gas meter and the flow rate displayed on the digital flow meter 12 are observed to see if they are the same. If the data are the same, it can be determined that the gas meter measurement and verification is standard. If they are different, it indicates that the gas meter measurement and verification has an error, i.e., it is a defective product. This process can be repeated to verify all gas meters.

[0036] The natural gas consumed by these tests will enter the compression tank 18 through the pipeline. Activating the electric telescopic rod on the upper right side of the base 1 will transport the natural gas to the gas storage tank on the upper left rear side of the base 1 through the compression plate. In addition, a one-way valve can be installed in the pipeline to prevent gas backflow, thereby avoiding waste of natural gas resources and preventing air pollution. Specific Implementation Example 2

[0038] This embodiment is designed to address the problem of inconvenience caused by the inability to move the device.

[0039] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a caster wheel 2 is provided on the lower side of the base 1. Pulling the handle 3 allows the base 1 to be moved via the caster wheel 2. Rotating the first threaded rod 4 adjusts the position of the anti-slip plate 5 on the lower side of the first threaded rod 4 relative to the ground, thereby controlling the movement and stopping of the base 1 for convenient use.

[0040] Additionally, a combustible gas detector can be installed on the upper side of the mounting bracket 6. The combustible gas detector can detect natural gas, preventing natural gas leakage at the inlet connection 7 and outlet connection 8, avoiding errors in calibration due to unstable connections, and eliminating the possibility of such accidents. The combustible gas detector is placed in front of the fixed baffle 9, and then the second threaded rod 11 is rotated to move the movable baffle 10 on the upper side of the mounting bracket 6, thereby controlling the distance between the fixed baffle 9 and the movable baffle 10 until the fixed baffle 9 and the movable baffle 10 clamp the combustible gas detector, thus protecting the combustible gas detector. Specific Implementation Example 3

[0042] This embodiment is designed to address the problem of excessively high temperature in the extrusion tank 18.

[0043] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the extrusion plate inside the extrusion tank 18 generates heat when extruding natural gas. It is necessary to cool down the temperature generated by the long-term operation of the extrusion tank 18 to improve the operational stability of the device. A water inlet is provided on the upper side of the cold water tank 13, which can add cold water or replace the water. When the water pump 14 is started, the water pump 14 can transport the water inside the cold water tank 13 to the connecting pipe 15 through the water pipe, and then to the cooling frame 17 through the diversion pipe 16. The cooling frame 17 is located on the outside of the extrusion tank 18 and is hollow, so as to cool the outside of the extrusion tank 18, thereby avoiding danger caused by the high temperature of the extrusion tank 18 and playing a protective role. The cooled water can be transported to the cold water tank 13 through the water pipe.

[0044] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas meter calibration device, comprising: Base (1); Its characteristic is that it further includes: The base (1) is provided with a moving mechanism for controlling the movement and stopping of the base (1) on its lower side, and the base (1) is threadedly connected to the first threaded rod (4), and the lower side of the first threaded rod (4) is rotatably connected to an anti-slip plate (5). The extrusion tank (18) is provided with a cooling mechanism on the outside of the extrusion tank (18) to prevent high temperature from affecting the extrusion tank (18), and the extrusion tank (18) is located on the upper side of the base (1).

2. The gas meter calibration device according to claim 1, characterized in that: The moving mechanism is composed of a universal wheel (2), a first threaded rod (4) and an anti-slip plate (5). The universal wheel (2) is provided on the lower side of the base (1), and the universal wheel (2) is arranged in an array. A handle (3) is provided on the upper left side of the base (1).

3. The gas meter calibration device according to claim 1, characterized in that: The base (1) is provided with a mounting bracket (6) on its upper side, and the mounting bracket (6) is provided with an air inlet connection end (7) and an air outlet connection end (8) on its upper side, and a fixing baffle (9) is provided at the rear of the upper side of the mounting bracket (6).

4. A gas meter calibration device according to claim 3, characterized in that: The upper side of the mounting bracket (6) is slidably connected to a movable baffle (10), and the movable baffle (10) is rotatably connected to a second threaded rod (11), and the second threaded rod (11) is rotatably connected to the mounting bracket (6). A digital flow meter (12) is provided on the upper side of the pipe on the lower side of the mounting bracket (6).

5. A gas meter calibration device according to claim 1, characterized in that: A cold water tank (13) is provided on the upper right side of the base (1), and the cold water tank (13) is connected to the water pump (14) through a water pipe, and the water pump (14) is located on the upper side of the base (1).

6. A gas meter calibration device according to claim 5, characterized in that: The cooling mechanism is composed of a connecting pipe (15), a diversion pipe (16) and a cooling frame (17). The water pump (14) is connected to the connecting pipe (15) through a water pipe, and the connecting pipe (15) is fixedly connected to the diversion pipe (16).

7. A gas meter calibration device according to claim 6, characterized in that: The front side of the diversion pipe (16) is fixedly connected to the cooling frame (17), and the diversion pipes (16) are arranged in an array and the cooling frame (17) is fixedly connected to the extrusion tank (18).

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