Testing device for ultrasonic gas meter metering module

Abstract

The utility model relates to the technical field of metering instrument detection, in particular to a testing device for a metering module of an ultrasonic gas meter, which comprises a module fixing frame, a base, a fan, a control box and a module protective shell, and is characterized in that the module fixing frame, the fan and the control box are sequentially mounted on the base from left to right; a module fixing frame is arranged on the base, a connecting hole site is further arranged in the area, where the module fixing frame is located, of the base, the module protection shell is installed on the connecting hole site, the module fixing frame is located in the module protection shell, and by fixing and detecting a tested module, the effect of conducting early-stage testing on the ultrasonic module before installation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of metering instrument detection, in particular to a testing device for an ultrasonic gas meter metering module. Background Art

[0002] With the release and application of the national standard for ultrasonic gas meters, ultrasonic gas meter verification procedures have been introduced in various places. More and more gas meter manufacturers have stepped up the development and production of ultrasonic gas meters. The number of ultrasonic gas meters is increasing.

[0003] Ultrasonic gas meter is a meter that uses ultrasonic technology to measure gas flow. Ultrasonic gas meter is based on the principle of ultrasonic time difference method to measure gas flow rate and calculate volume. This gas meter is suitable for natural gas, city pipeline gas, liquefied petroleum gas and other combustible gases. The flow rate and flow measurement can be widely used in urban households and industrial and commercial users. Ultrasonic gas meter uses NB-IoT communication technology. Ultrasonic gas meter is an intelligent IoT flow meter. It has the characteristics of small size, compact structure and no mechanical transmission parts. With temperature and pressure compensation function, it has a wide range ratio and long-term measurement stability.

[0004] As the core component of the ultrasonic gas meter, the ultrasonic module needs to be pre-tested before installation. For this purpose, a test device for the ultrasonic gas meter metering module is developed. Utility Model Content

[0005] The utility model aims to provide a testing device for an ultrasonic gas meter metering module, so as to solve the problem of performing preliminary testing on the performance of the ultrasonic module before installing the meter.

[0006] The utility model provides a test device for an ultrasonic gas meter metering module, comprising a module fixing frame, a base, a fan, a control box and a module protection shell;

[0007] The module fixing frame, the fan and the control box are sequentially installed on the base from left to right. A connection hole is also provided on the base in the area where the module fixing frame is located. The module protection shell is installed on the connection hole. The module fixing frame is located inside the module protection shell.

[0008] The control box is provided with a first control box area and a second control box area, a control box partition is provided between the first control box area and the second control box area, a battery device is installed in the first control box area, a main control board is installed in the second control box area, an infrared communication board is installed on the top of the main control board, an ammeter is installed on the top outer wall of the control box, and a main control board switch and a fan switch are also installed on the outer wall of the control box;

[0009] The fan is installed on the base and is located between the module protection shell and the control box;

[0010] The module protection shell and the outer wall of the control box on the side opposite to the fan are both provided with outer wall through holes, and the outer wall through holes are used for ventilation;

[0011] The module protection shell and the control box are both provided with a filter screen on the outer wall on the side opposite to the fan, and a filter screen plug-in block is provided on the filter screen. The module protection shell and the control box are both provided with a rectangular groove matching the filter screen plug-in block, and the rectangular groove is used to plug the filter screen plug-in block;

[0012] The filter is provided with a filter pipe connection end, a fan ventilation pipe is connected between one side of the filter pipe connection end and the fan, and a hose is connected to the other side of the filter pipe connection end, and the hose is used to connect to the module under test.

[0013] Furthermore, a ventilation device is provided in the middle of the base, and a first ventilation pipe and a second ventilation pipe are provided inside the base.

[0014] Furthermore, the base is provided with an air outlet device connection end on the area covered by the module protective shell and the control box, one end of the first ventilation pipe is connected to the ventilation device, and the other end of the first ventilation pipe is connected to the air outlet device connection end located under the coverage of the module protective shell, one end of the second ventilation pipe is connected to the ventilation device, and the other end of the second ventilation pipe is connected to the air outlet device connection end located under the coverage of the control box.

[0015] Furthermore, a second air outlet device is installed on the air outlet device connection end in the area covered by the module protection shell, and a first air outlet device is installed on the air outlet device connection end in the area covered by the control box.

[0016] Furthermore, filter cap connection ends are provided on both sides of the second air outlet device, and filter caps are installed on the filter cap connection ends.

[0017] Furthermore, a filter cap through hole is provided on the filter cap connecting end, an air outlet device through hole is provided on the second air outlet device, the filter cap through hole is connected with the air outlet device through hole, and a gauze is provided on the filter cap.

[0018] Furthermore, the power line of the battery device is connected to the fan through the fan switch to supply power to the fan, and the power line of the battery device is also connected to the main control board through the main control board switch to supply power to the main control board.

[0019] Furthermore, the ammeter is connected in series to the power supply circuit of the module under test, and the communication line of the ammeter is connected to the main control board.

[0020] Furthermore, the control box is provided with a communication interface, and the communication interface is used for connecting the line to the computer end and the communication end of the module under test.

[0021] Furthermore, the main control board establishes a communication connection with the infrared communication board, and the main control board establishes a communication connection with a remote host computer through the infrared communication board.

[0022] The purpose of the utility model is to provide an efficient and convenient ultrasonic gas meter metering module test device, which aims to meet the needs of comprehensive preliminary testing of ultrasonic module performance before meter installation. Through a unique structural design, the utility model can ensure the accuracy and stability of the test process and provide a safe test environment.

[0023] To achieve the above objectives, the utility model provides a test device for ultrasonic gas meter metering module, which integrates multiple components such as module fixing frame, base, fan, control box and module protection shell. The following is a detailed explanation of these components and a description of the workflow of the entire device.

[0024] First, the module holder is designed to firmly fix the module under test to ensure that it does not move or vibrate during the test, thereby ensuring the accuracy of the test results. The module holder is installed on the base and used in conjunction with the module protection case to provide a protected environment for the module under test.

[0025] As the foundation of the entire test device, the base not only carries all other components, but also provides stable support for the test through its solid structure. The base is also equipped with a ventilation device to ensure that the heat generated during the test can be dissipated in time and maintain the stability of the test environment.

[0026] The fan plays a key role in the test device. It is located between the module protection shell and the control box. By generating a stable airflow, it helps maintain a constant temperature in the test environment and prevents the test results from being affected by temperature changes. At the same time, the fan also helps to discharge the exhaust gas generated by the tested module in a timely manner to keep the test environment clean.

[0027] The control box contains important components such as the battery device, main control board, and infrared communication board. The battery device provides a stable power supply for the entire device to ensure the continuity of the test process. The main control board is responsible for controlling the various functions of the test device and communicating with the remote host computer through the infrared communication board to achieve real-time transmission and analysis of test data.

[0028] The module protection case protects the module under test from external interference. It closely matches the connection holes on the base, completely wrapping the module under test to form a closed test space. At the same time, the module protection case is also equipped with filters and ventilation holes to ensure that the test environment is well ventilated and free from contamination by dust and other impurities.

[0029] During the test, the module under test is connected to the filter pipe connection end through a hose to form a closed test loop. The fan blows fresh air into the test loop through the fan ventilation pipe to provide a stable test environment for the module under test. At the same time, the exhaust gas is discharged outside the device through the hose and filter to ensure the cleanliness and safety of the test environment.

[0030] In addition, the utility model further improves the practicality and convenience of the test device through a series of detailed designs. For example, the ventilation system composed of the air outlet connection end and ventilation pipe and other components arranged on the base ensures the ventilation effect of the test environment; the design of the filter cap and the gauze effectively prevents dust and other impurities from entering the interior of the test device; the setting of the ammeter and the communication interface facilitates the reading and transmission of the test data.

[0031] In summary, the utility model realizes an efficient and convenient ultrasonic gas meter metering module test device through unique structural design and functional configuration. The device can not only meet the needs of comprehensive preliminary testing of ultrasonic module performance before installation, but also ensure the accuracy and stability of the test process, providing strong technical support for the production and quality control of gas meters.

[0032] The utility model has the following beneficial effects: the utility model provides a test device for an ultrasonic gas meter metering module, including a module fixing frame, a base, a fan, a control box and a module protective shell, the module fixing frame, the fan and the control box are sequentially installed on the base from left to right, a connection hole is also provided on the base in the area where the module fixing frame is located, the module protective shell is installed on the connection hole, the module fixing frame is located inside the module protective shell, and the effect of performing preliminary testing on the ultrasonic module before installation is achieved by fixing the module to be tested and performing testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1This is a schematic diagram of the main view cross-sectional structure provided by the utility model.

[0035] Figure 2 This is a schematic diagram of the main appearance structure provided by the utility model.

[0036] Figure 3 This is a schematic diagram of the top view structure of the protective shell without module installed provided by the utility model.

[0037] Figure 4 The utility model provides Figure 1 Schematic diagram of the structure at point a.

[0038] Figure 5 The utility model provides Figure 1 Schematic diagram of the structure at point b.

[0039] Figure 6 The utility model provides Figure 1 Schematic diagram of the structure at point c in the middle.

[0040] Figure 7 This is a structural schematic diagram of the utility model in which a filter cap is not installed on the side of the air outlet base.

[0041] Figure 8 This is a schematic diagram of the structure of a filter cap installed on the side of a wind base provided by the utility model.

[0042] Fig. 9 This is a schematic diagram of the structure of the control box provided by the utility model without installing a filter.

[0043] Fig.10 This is a schematic diagram of the structure of the control box provided by the utility model without installing a filter.

[0044] Fig.11 This is a schematic diagram of the structure of the module protection shell provided by the utility model without the filter installed.

[0045] Fig.12 This is a schematic diagram of the structure of the module protection shell provided by the utility model with the filter installed.

[0046] Illustrations: 1. Module under test, 2. Module fixing frame, 3. Fan, 4. Control box, 5. Base, 6. Module protective shell, 7. Fan switch, 8. Main control board, 9. Ammeter, 10. Battery device, 11. Main control board switch, 12. Infrared communication board, 13. Ventilation device, 14. First ventilation duct, 15. Second ventilation duct, 16. First air outlet device, 17. Filter, 18. Air outlet device connection end, 19. Connection hole, 20. Second air outlet device, 21. Filter cap connection end, 22. Filter cap, 23. Filter plug-in block, 24. Filter pipe connection end, 25. Fan ventilation duct, 26. Hose. DETAILED DESCRIPTION

[0047] like Figures 1 to 12 As shown, the embodiment of the utility model provides a test device for an ultrasonic gas meter metering module, including a module fixing frame 2, a base 5, a fan 3, a control box 4 and a module protection shell 6;

[0048] The module fixing frame 2, the fan 3 and the control box 4 are sequentially installed on the base 5 from left to right. A connection hole 19 is also provided on the base 5 in the area where the module fixing frame 2 is located. The module protection shell 6 is installed on the connection hole 19. The module fixing frame 2 is located inside the module protection shell 6.

[0049] The control box 4 is provided with a first control box area and a second control box area, a control box partition is provided between the first control box area and the second control box area, a battery device 10 is installed in the first control box area, a main control board 8 is installed in the second control box area, an infrared communication board 12 is installed on the top of the main control board 8, an ammeter 9 is installed on the top outer wall of the control box 4, and a main control board switch 11 and a fan switch 7 are also installed on the outer wall of the control box 4;

[0050] The fan 3 is installed on the base 5 and is located between the module protection shell 6 and the control box 4;

[0051] The module protection shell 6 and the outer wall of the control box 4 on the side opposite to the fan 3 are both provided with outer wall through holes, and the outer wall through holes are used for ventilation;

[0052] The module protection shell 6 and the outer wall of the control box 4 on the opposite side of the fan 3 are both installed with a filter 17, and a filter plug-in block 23 is arranged on the filter 17. The module protection shell 6 and the control box 4 are both provided with a rectangular groove matching the filter plug-in block 23, and the rectangular groove is used to plug the filter plug-in block 23. The filter 17 is used to prevent debris from entering.

[0053] The filter 17 is provided with a filter pipe connection end 24, a fan ventilation pipe 25 is connected between one side of the filter pipe connection end 24 and the fan 3, and the other side of the filter pipe connection end 24 is connected to a hose 26, and the hose 26 is used to connect to the module 1 under test.

[0054] Specifically, a ventilation device 13 is provided in the middle of the base 5, and a first ventilation pipe 14 and a second ventilation pipe 15 are provided inside the base 5. The ventilation device 13 supplies air through the first ventilation pipe 14 and the second ventilation pipe 15 to start the function of lowering the temperature of each electrical component of the present application.

[0055] Specifically, the base 5 is provided with an air outlet device connection end 18 in the area covered by the module protective shell 6 and the control box 4, one end of the first ventilation pipe 14 is connected to the ventilation device 13, and the other end of the first ventilation pipe 14 is connected to the air outlet device connection end 18 located under the coverage of the module protective shell 6, one end of the second ventilation pipe 15 is connected to the ventilation device 13, and the other end of the second ventilation pipe 15 is connected to the air outlet device connection end 18 located under the coverage of the control box 4.

[0056] Specifically, the second air outlet device 20 is installed on the air outlet device connection end 18 located in the area covered by the module protection shell 6, and the first air outlet device 16 is installed on the air outlet device connection end 18 in the area covered by the control box 4.

[0057] Specifically, filter cap connection ends 21 are provided on both sides of the second air outlet device 20 , and filter caps 22 are installed on the filter cap connection ends 21 .

[0058] Specifically, the filter cap connection end 21 is provided with a filter cap through hole, the second air outlet device 20 is provided with an air outlet device through hole, the filter cap through hole is connected with the air outlet device through hole, and a gauze is provided on the filter cap 22. The filter cap 22 is used to prevent foreign matter from entering.

[0059] Specifically, the power line of the battery device 10 is connected to the fan 3 through the fan switch 7 to supply power to the fan 3 , and the power line of the battery device 10 is also connected to the main control board 8 through the main control board switch 11 to supply power to the main control board 8 .

[0060] Specifically, the ammeter 9 is connected in series to the power supply circuit of the module 1 under test, and the communication line of the ammeter 9 is connected to the main control board 8 .

[0061] Specifically, the control box 4 is provided with a communication interface, and the communication interface is used for connecting the line through the computer end and the communication end of the module under test.

[0062] Specifically, the main control board 8 establishes a communication connection with the infrared communication board 12, and the main control board 8 communicates with the remote host computer through the infrared communication board 12.

[0063] The utility model provides a method for using a test device for an ultrasonic gas meter metering module as follows: the module 1 to be tested is placed on a module fixing frame 2, and the module fixing frame 2 is fixedly mounted on a base 5. The fan 3 is fixedly mounted on the base 5, on the right side of the module fixing frame 2, and the outlet of the fan 3 is connected to the air inlet of the module 1 to be tested. The control box 4 is fixedly mounted on the base 5, on the right side of the fan 3. The battery device 10 includes a fan battery, a main control board battery, a main control board 8, and an infrared communication board 12, which are respectively fixedly mounted inside the control box 4, and the infrared communication board 12 is installed relative to the communication element on the main control board 8. The fan switch 7 and the main control board switch 11 are respectively fixedly mounted on the control box 4. The ammeter 9 is connected in series to the power supply circuit of the module 1 to be tested, and the communication line of the ammeter 9 is connected to the main control board 8. The main control board 8 reads the test data of the ammeter 9, that is, the power consumption data of the module 1 to be tested. The power line of the fan battery is connected to the fan 3 through the fan switch 7. The power line of the main control board battery is connected to the main control board 8 through the main control board switch 11 to power the main control board 8. The control box 4 is provided with several communication interfaces, which are respectively connected to the computer end and the communication end of the module 1 under test, and the upper computer software 13 is installed on the computer. The problem of pre-testing the performance of the ultrasonic module before installation is solved.

[0064] In order to further facilitate those skilled in the art to understand and implement this solution, the following specific implementation methods are provided;

[0065] Preparation stage: Ensure that all parts are intact, especially electrical components should not be damaged or short-circuited. Check whether the base 5 is stable and ensure that the test device is placed firmly. Ensure that the battery device 10 is fully charged to meet the power requirements during the test.

[0066] Assemble the test device: Install the module fixing frame 2 at the specified position of the base 5. Install the fan 3 on the base 5 and ensure that it is stable. Install the control box 4 on the base 5, on the right side of the fan 3. Install and fix the battery device 10, the main control board 8 and the infrared communication board 12 inside the control box 4, and ensure that the infrared communication board 12 is correctly connected to the communication element on the main control board 8. Install the fan switch 7 and the main control board switch 11 to the outer wall of the control box 4. Connect the ammeter 9 in series to the power supply circuit of the module 1 under test, and ensure that the communication line of the ammeter 9 is correctly connected to the main control board 8.

[0067] Connection and test preparation: Use hose 26 to connect the tested module 1 to the filter pipe connection end 24 on the filter 17, and ensure that the connection is tight and there is no air leakage. Check all electrical connections to ensure that they are correct. Ensure that the communication interface on the control box 4 is correctly connected to the computer and the communication end of the tested module 1. Start the host computer software on the computer and prepare to receive test data.

[0068] Conduct the test: Turn on the main control board switch 11 and the fan switch 7 to start the test device. Send a test command through the host computer software to start testing the module 1 under test. Observe the reading of the ammeter 9 and record the power consumption data of the module 1 under test. Monitor the performance parameters of the module 1 under test in real time through the host computer software.

[0069] End of test and data processing: After the test is completed, turn off the main control panel switch 11 and the fan switch 7 to stop the test device. Disconnect all electrical connections and communication interfaces. Export the test data to the computer for analysis and processing.

[0070] Maintenance and care: Clean the test device regularly to ensure that there is no dust and debris accumulation. Check the fastening of each component to ensure that the device is stable and reliable. Charge the battery device 10 regularly to ensure its performance is good.

[0071] Through the above steps, the performance test of the ultrasonic gas meter module can be realized, meeting the need for preliminary testing of the ultrasonic module before installing the meter. At the same time, the test device of the utility model has a simple structure and is easy to operate, and can effectively improve the test efficiency and accuracy.

[0072] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A test device for an ultrasonic gas meter metering module, characterized in that: It comprises a module fixing frame (2), a base (5), a fan (3), a control box (4) and a module protection shell (6); The module fixing frame (2), the fan (3) and the control box (4) are sequentially mounted on the base (5) from left to right. A connection hole (19) is also provided on the base (5) in the area where the module fixing frame (2) is located. The module protection shell (6) is mounted on the connection hole (19). The module fixing frame (2) is located inside the module protection shell (6). The control box (4) is provided with a first control box area and a second control box area, a control box partition is provided between the first control box area and the second control box area, a battery device (10) is installed in the first control box area, a main control board (8) is installed in the second control box area, an infrared communication board (12) is installed on the top of the main control board (8), an ammeter (9) is installed on the top outer wall of the control box (4), and a main control board switch (11) and a fan switch (7) are also installed on the outer wall of the control box (4); The fan (3) is mounted on the base (5) and is located between the module protection shell (6) and the control box (4); The module protection shell (6) and the outer wall of the control box (4) on the side opposite to the fan (3) are both provided with outer wall through holes, and the outer wall through holes are used for ventilation; The outer walls of the module protection shell (6) and the control box (4) on the side opposite to the fan (3) are both installed with a filter screen (17), a filter screen plug-in block (23) is arranged on the filter screen (17), and the module protection shell (6) and the control box (4) are both provided with a rectangular groove matching the filter screen plug-in block (23), and the rectangular groove is used to plug the filter screen plug-in block (23); The filter screen (17) is provided with a filter screen pipe connection end (24), a fan ventilation pipe (25) is connected between one side of the filter screen pipe connection end (24) and the fan (3), and a hose (26) is connected to the other side of the filter screen pipe connection end (24), and the hose (26) is used to connect to the module (1) under test; A ventilation device (13) is provided in the middle of the base (5), and a first ventilation pipe (14) and a second ventilation pipe (15) are provided inside the base (5); The base (5) is provided with an air outlet device connection end (18) in the area covered by the module protection shell (6) and the control box (4); one end of the first ventilation pipe (14) is connected to the ventilation device (13), and the other end of the first ventilation pipe (14) is connected to the air outlet device connection end (18) located within the coverage of the module protection shell (6); one end of the second ventilation pipe (15) is connected to the ventilation device (13), and the other end of the second ventilation pipe (15) is connected to the air outlet device connection end (18) located within the coverage of the control box (4).

2. A test device for an ultrasonic gas meter measuring module according to claim 1, characterized in that: The second air outlet device (20) is installed on the air outlet device connection end (18) located in the area covered by the module protection shell (6), and the first air outlet device (16) is installed on the air outlet device connection end (18) in the area covered by the control box (4).

3. A test device for an ultrasonic gas meter metering module according to claim 2, characterized in that: Filter cap connection ends (21) are provided on both sides of the second air outlet device (20), and filter caps (22) are installed on the filter cap connection ends (21).

4. A test device for an ultrasonic gas meter metering module according to claim 3, characterized in that: The filter cap connection end (21) is provided with a filter cap through hole, the second air outlet device (20) is provided with an air outlet device through hole, the filter cap through hole is communicated with the air outlet device through hole, and the filter cap (22) is provided with a gauze.

5. A test device for an ultrasonic gas meter measuring module according to claim 1, characterized in that: The power line of the battery device (10) is connected to the fan (3) through the fan switch (7) to supply power to the fan (3), and the power line of the battery device (10) is also connected to the main control board (8) through the main control board switch (11) to supply power to the main control board (8).

6. A test device for an ultrasonic gas meter measuring module according to claim 5, characterized in that: The ammeter (9) is connected in series to the power supply circuit of the module (1) under test, and the communication line of the ammeter (9) is connected to the main control board (8).

7. A test device for an ultrasonic gas meter measuring module according to claim 6, characterized in that: The control box (4) is provided with a communication interface, and the communication interface is used for connecting a line through the computer terminal and the communication terminal of the module under test.

8. A test device for an ultrasonic gas meter measuring module according to claim 7, characterized in that: The main control board (8) establishes a communication connection with the infrared communication board (12), and the main control board (8) establishes a communication connection with a remote host computer via the infrared communication board (12).

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