Testing device for temperature-pressure jointed board of gas meter

Abstract

A testing device for a gas meter temperature and pressure jointed board comprises a press fitting assembly, a testing module, a light display module and a control module, the testing module is electrically connected with the gas meter temperature and pressure jointed board, the light display module and the control module and used for sending a testing signal to the gas meter temperature and pressure jointed board, receiving a feedback signal of the gas meter temperature and pressure jointed board and processing the feedback signal; the control module is electrically connected with the light display module and is used for switching the test signal sent by the test module and switching the light display state of the light display module, and the light display module is used for visually outputting the signal processing result of the signal processing unit; compared with the prior art, the gas meter temperature and pressure jointed board is fixed through the press-fitting assembly, good contact of parts in the testing process is guaranteed, the testing module sends a simulation testing signal, whether the function of the sensor is abnormal or not is judged according to an electric signal returned by the sensor, and the judgment result is transmitted to the control module; the light display state of the light display module is changed by the control module, so that a tester can know the abnormal condition.

Description

Technical Field

[0001] The utility model relates to the technical field of gas meter testing equipment, in particular to a testing device for warm-pressed panels of a gas meter. Background Art

[0002] A gas meter is a device used to measure and record gas usage. To accurately determine the amount of gas used by a user, it is usually necessary to convert the volume measured under operating conditions and then perform a volume calculation. The volume conversion measured under operating conditions is related to the pipeline pressure and pipeline gas temperature, which are generally measured by temperature and pressure sensors installed in the gas meter. Therefore, the proper functioning of the temperature and pressure sensors in the gas meter is closely related to the accuracy of the volume conversion. The temperature and pressure sensors in existing gas meters are generally located on the temperature and pressure panel. Therefore, a test device is needed that can quickly perform functional testing on the temperature and pressure panel during production and intuitively display the test results of the temperature and pressure sensors.

[0003] In view of the above problems, it is necessary to improve them. Utility Model Content

[0004] In view of the above shortcomings, the technical problem to be solved by the present invention is to provide a testing device for a gas meter temperature-pressure panel, to perform functional tests on the temperature sensor and pressure sensor on the gas meter temperature-pressure panel, and to provide feedback on the test results through optical signals.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a testing device for a gas meter temperature-pressed panel, including a pressing assembly for fixing the gas meter temperature-pressed panel; a testing module, electrically connected to the gas meter temperature-pressed panel, including a signal transmitting unit for sending a test signal to the gas meter temperature-pressed panel, a signal receiving unit for receiving a feedback signal from the gas meter temperature-pressed panel, and a signal processing unit for processing the feedback signal; a light display module, electrically connected to the test module, for visually outputting the signal processing results of the signal processing unit; a control module, electrically connected to the test module and the light display module, for switching the test signal emitted by the signal transmitting unit, and switching the light display state of the light display module.

[0006] As a preferred solution of the present invention, the test signal sent by the signal transmitting unit includes a temperature test signal and a pressure test signal; the control module is provided with a first switching instruction and a second switching instruction, the first switching instruction is used to enable the signal transmitting unit to send a temperature test signal, and the second switching instruction is used to enable the signal transmitting unit to send a pressure test signal.

[0007] As a preferred solution of the present invention, the signal processing unit is provided with matching data; the signal receiving unit is configured to send a first judgment result to the control module when it is determined that the feedback signal exceeds a range of the matching data.

[0008] As a preferred solution of the present invention, the matching data includes temperature matching data and pressure matching data, and the feedback signal includes a temperature feedback signal and a pressure feedback signal.

[0009] As a preferred solution of the present invention, the press assembly includes a loading platform and a pressing plate assembly frame, and the pressing plate assembly frame is fixed on the loading platform and arranged perpendicular to the loading platform.

[0010] As a preferred solution of the present invention, the light display module is provided with a number of LED indicator lights arranged in an array, the LED indicator lights are installed on the stage, and the LED indicator lights are in a constantly bright state; the control module is provided with a third switching instruction, and the third switching instruction is used to make the LED indicator lights in an off state.

[0011] As a preferred solution of the present invention, a carrier plate is provided on the stage, and a plurality of positioning through holes arranged in an array are formed on the carrier plate.

[0012] As a preferred solution of the present invention, the test module is provided with a PCB circuit board, which is installed inside the stage; the PCB circuit board is provided with a plurality of test pins arranged in an array, and the top ends of the plurality of test pins are correspondingly distributed in a plurality of positioning through holes.

[0013] As a preferred solution of the present invention, the pressure plate assembly includes a vertical frame, a pressing handle, a transmission connecting rod and a pressure plate; the pressing handle is arranged at the top of the vertical frame, one end of the transmission connecting rod is connected to the pressing handle, and the other end is connected to the pressure plate.

[0014] As a preferred solution of the present invention, the pressing plate is a transparent acrylic plate.

[0015] Compared with the existing technology, the beneficial effects of the utility model are: the gas meter temperature and pressure panel is fixed by a press-fit assembly, so that good contact is formed between the temperature and pressure sensor on the gas meter temperature and pressure panel and the test module; the test module sends an analog test signal and judges whether the sensor function is abnormal based on the electrical signal returned by the sensor, and transmits the judgment result to the control module, and the control module changes the light display state of the light display module to make the tester aware of the abnormal condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a gas meter warm-pressed panel testing device provided in an embodiment of the present application (a);

[0017] Figure 2A schematic structural diagram of a gas meter warm-pressed panel testing device provided in an embodiment of the present application (b);

[0018] Figure markings: press-fitting assembly 1, stage 1-1, carrier plate 1-11, positioning through hole 1-12, press plate assembly frame 1-2, stand 1-21, press handle 1-22, transmission connecting rod 1-23, press plate 1-24, test module 2, signal transmitting unit 2-1, signal receiving unit 2-2, signal processing unit 2-3, optical display module 3, LED indicator light 3-1, control module 4. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0020] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the elements described without departing from the scope of the present application. Various examples may appropriately omit, replace, or add various processes or components. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted, or combined. In addition, features described in some examples may be combined in other examples.

[0021] See also Figure 1 , Figure 1 The following is a schematic diagram (a) showing a test device for warm-pressed panels of a gas meter provided in an embodiment of the present application. Figure 1 As shown, a testing device for a gas meter temperature-pressed panel comprises a pressing assembly 1 for fixing the gas meter temperature-pressed panel; a testing module 2, electrically connected to the gas meter temperature-pressed panel, comprising a signal transmitting unit 2-1 for sending a test signal to the gas meter temperature-pressed panel, a signal receiving unit 2-2 for receiving a feedback signal from the gas meter temperature-pressed panel, and a signal processing unit 2-3 for processing the feedback signal; a light display module 3, electrically connected to the testing module 2, for visually outputting the signal processing result of the signal processing unit 2-3; a control module 4, electrically connected to the testing module 2 and the light display module 3, for switching the test signal emitted by the signal transmitting unit 2-1, and switching the light display state of the light display module 3.

[0022] Specifically, the pressing assembly 1 limits the position of the gas meter temperature-pressing panel to ensure good contact between the test module 2 and the test points on the gas meter temperature-pressing panel, avoiding disconnection during signal transmission, resulting in inaccurate test results; the test module 2 is electrically connected to the gas meter temperature-pressing panel, and sends an analog signal to the temperature and pressure sensor on the gas meter temperature-pressing panel through the signal transmitting unit 2-1. The temperature and pressure sensor generates a temperature electrical signal and a pressure electrical signal based on the temperature analog signal and the pressure analog signal respectively. The signal receiving unit 2-2 receives the electrical signal generated by the gas meter temperature-pressing panel, and transmits the received electrical signal to the signal processing unit 2-3. The signal processing unit 2-3 judges the electrical signal. If the electrical signal is abnormal, the judgment result is transmitted to the control module 4, and the control module 4 changes the light display state of the light display module 3 to facilitate the tester to know the abnormal condition.

[0023] As an optional embodiment of the present application, the signal transmitting unit 2-1 is communicatively connected to the gas meter temperature and pressure panel IIC, and is used to send a test signal to the sensor on the gas meter temperature and pressure panel. The sensor on the gas meter temperature and pressure panel returns a feedback signal to the signal receiving unit 2-2 based on the test signal, and the signal receiving unit 2-2 transmits the received feedback signal to the signal processing unit 2-3 and the control module 4.

[0024] Specifically, the signal processing unit 2-3 is provided with matching data, and the matching data includes temperature matching data and pressure matching data; the feedback signal of the sensor on the temperature and pressure panel of the gas meter includes a temperature feedback signal and a pressure feedback signal; the test signal sent by the signal transmitting unit 2-1 includes a temperature test signal and a pressure test signal.

[0025] Furthermore, the signal transmitting unit 2-1 sends a temperature test signal to the temperature sensor on the temperature pressing plate of the gas meter. The temperature sensor returns a temperature feedback signal to the signal receiving unit 2-2 based on the temperature test signal. The signal receiving unit 2-2 transmits the received temperature feedback signal to the signal processing unit 2-3. The signal processing unit 2-3 determines whether the temperature feedback signal exceeds the normal range based on the temperature matching data. If it exceeds the normal range, the first judgment result is sent to the control module 4, so that the control module 4 switches the indication state of the LED indicator 3-1 on the light display module 3; the signal transmitting unit 2-1 can also send a pressure test signal to the pressure sensor on the temperature pressing plate of the gas meter. The pressure sensor returns a pressure feedback signal to the signal receiving unit 2-2 based on the pressure test signal. The signal receiving unit 2-2 transmits the received pressure feedback signal to the signal processing unit 2-3. The signal processing unit 2-3 determines whether the pressure feedback signal exceeds the normal range based on the pressure matching data. If it exceeds the normal range, the first judgment result is sent to the control module 4, so that the control module 4 switches the indication state of the LED indicator 3-1 on the light display module 3.

[0026] Furthermore, the control module 4 is provided with a first switching instruction and a second switching instruction; the signal receiving unit 2-2 transmits the received temperature feedback signal and pressure feedback signal to the control module 4. When the control module 4 receives the temperature feedback signal, the control module 4 sends a second switching instruction to the transmitting unit 2-1, so that the transmitting unit 2-1 sends a pressure test signal to a group of temperature and pressure sensors currently being tested; when the control module 4 receives the pressure feedback signal, the control module 4 sends a first switching instruction to the transmitting unit 2-1, so that the transmitting unit 2-1 sends a temperature test signal to the next group of temperature and pressure sensors to be tested.

[0027] As an optional embodiment of the present application, the signal processing unit 2-3 is provided with matching data, and the signal receiving unit 2-2 is used to send a first judgment result to the control module 4 when it determines that the feedback signal exceeds the matching data range. After receiving the first judgment result, the control module 4 immediately sends a third switching instruction to the light display module 3 to turn off the LED indicator light 3-1 on the light display module 3.

[0028] As an option of the embodiment of the present application, Figure 2 As shown, the pressing assembly 1 includes a loading platform 1-1 and a pressing plate assembly 1-2, the pressing plate assembly 1-2 is fixed on the loading platform 1-1 and is arranged perpendicular to the loading platform 1-1; a carrier plate 1-11 is arranged on the loading platform 1-1, and a plurality of positioning through holes 1-12 arranged in an array are formed on the carrier plate 1-11; the pressing plate assembly 1-2 includes a stand 1-21, a pressing handle 1-22, a transmission connecting rod 1-23 and a pressing plate 1-24; the pressing handle 1-22 is arranged at the top of the stand 1-21, and one end of the transmission connecting rod 1-23 is connected to the pressing handle 1-22, and the other end is connected to the pressing plate 1-24.

[0029] Specifically, the carrier plate 1-11 is located below the pressure plate 1-24, the gas meter temperature and pressure plate is set on the carrier plate 1-11, and the temperature and pressure sensor on the gas meter temperature and pressure plate is aligned with the positioning through hole 1-12 on the carrier plate 1-11; the tester presses the pressing handle 1-22 to drive the transmission connecting rod 1-23 and the pressure plate 1-24 to move, so that the pressure plate 1-24 applies a certain pressure to the gas meter temperature and pressure plate set on the carrier plate 1-11, ensuring that the test pin and the temperature and pressure sensor on the gas meter temperature and pressure plate maintain good contact during the test.

[0030] As an optional embodiment of the present application, the pressing plate 1-24 is a transparent acrylic plate. The transparent acrylic plate makes it easy for testers to confirm the pressing status of the gas meter warm pressing panel when pressing the gas meter warm pressing panel, so that the gas meter warm pressing panel forms good contact with several test pins on the PCB circuit board.

[0031] As an optional embodiment of the present application, the light display module 3 is provided with a plurality of LED indicator lights 3-1 arranged in an array, the LED indicator lights 3-1 are installed on the stage 1-1, and the LED indicator lights 3-1 are in a constantly bright state; the control module 4 is provided with a third switching instruction, and the third switching instruction is used to make the LED indicator light 3-1 in an off state.

[0032] Specifically, several LED indicator lights 3-1 correspond one-to-one to the temperature and pressure sensors on the temperature and pressure panel of the gas meter. When the signal processing unit 2-3 determines that the feedback signal of the temperature and pressure sensor on the temperature and pressure panel of the gas meter exceeds the matching data range, it sends a first judgment result to the control module 4. Based on the first judgment result, the control module 4 sends a third switching instruction to the corresponding LED indicator light 3-1, so that the LED indicator light 3-1 is changed from a normally on state to an off state, so that the tester can confirm the abnormal temperature and pressure sensor on the temperature and pressure panel of the gas meter based on the LED indicator light 3-1.

[0033] As an optional embodiment of the present application, the test module 2 is provided with a PCB circuit board, which is installed inside the worktable 1-1; the PCB circuit board is provided with a number of test pins arranged in an array, and the top ends of the several test pins are correspondingly distributed in the several positioning through holes 1-12; the number of the several test pins is equal to the number of the several positioning through holes 1-12, one end of the test pin is set in the positioning through hole 1-12, and one end of the temperature and pressure sensor on the gas meter temperature and pressure panel is also set in the positioning through hole 1-12, and the end of the test pin is connected to the test point of the temperature and pressure sensor in the positioning through hole 1-12; the test pin is used to transmit test signals and feedback signals between the PCB circuit board and the gas meter temperature and pressure panel.

[0034] In some embodiments, the control module 4 may be, for example, a microcontroller unit (MCU), a central processing unit (CPU), or the like.

[0035] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0036] Although this document frequently uses the following terms: press assembly 1, stage 1-1, carrier plate 1-11, positioning hole 1-12, press plate assembly frame 1-2, stand 1-21, press handle 1-22, transmission connecting rod 1-23, press plate 1-24, test module 2, signal transmitting unit 2-1, signal receiving unit 2-2, signal processing unit 2-3, optical display module 3, LED indicator 3-1, control module 4, etc., the use of other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A gas meter warm pressing panel testing device, characterized in that: include Press-fit assembly (1), used for fixing the gas meter warm pressing plate; A test module (2) is electrically connected to the gas meter temperature and pressure assembly plate, comprising a signal transmitting unit (2-1) for transmitting a test signal to the gas meter temperature and pressure assembly plate, a signal receiving unit (2-2) for receiving a feedback signal from the gas meter temperature and pressure assembly plate, and a signal processing unit (2-3) for processing the feedback signal; A light display module (3) is electrically connected to the test module (2) and is used to visually output the signal processing results of the signal processing unit (2-3); The control module (4) is electrically connected to the test module (2) and the light display module (3), and is used to switch the test signal emitted by the signal emission unit (2-1) and to switch the light display state of the light display module (3).

2. A gas meter warm pressing panel testing device according to claim 1, characterized in that: The test signal sent by the signal transmitting unit (2-1) includes a temperature test signal and a pressure test signal; The control module (4) is provided with a first switching instruction and a second switching instruction, the first switching instruction is used to enable the signal transmitting unit (2-1) to send a temperature test signal, and the second switching instruction is used to enable the signal transmitting unit (2-1) to send a pressure test signal.

3. A gas meter warm pressing panel testing device according to claim 1, characterized in that: The signal processing unit (2-3) is provided with matching data; The signal receiving unit (2-2) is used to send a first judgment result to the control module (4) when it is judged that the feedback signal exceeds the matching data range.

4. A gas meter warm pressing panel testing device according to claim 3, characterized in that: The matching data includes temperature matching data and pressure matching data, and the feedback signal includes a temperature feedback signal and a pressure feedback signal.

5. A gas meter warm pressing panel testing device according to claim 1, characterized in that: The pressing assembly (1) comprises a loading platform (1-1) and a pressing plate assembly frame (1-2); the pressing plate assembly frame (1-2) is fixedly mounted on the loading platform (1-1) and is arranged perpendicular to the loading platform (1-1).

6. A gas meter warm-pressed panel testing device according to claim 5, characterized in that: The light display module (3) is provided with a plurality of LED indicator lights (3-1) arranged in an array, the LED indicator lights (3-1) are installed on the object platform (1-1), and the LED indicator lights (3-1) are in a constantly lit state; The control module (4) is provided with a third switching instruction, and the third switching instruction is used to put the LED indicator light (3-1) into an off state.

7. A gas meter warm-pressed panel testing device according to claim 5, characterized in that: A carrier plate (1-11) is provided on the object carrier (1-1), and a plurality of positioning through holes (1-12) arranged in an array are formed on the carrier plate (1-11).

8. A gas meter warm-pressed panel testing device according to claim 7, characterized in that: The test module (2) is provided with a PCB circuit board, and the PCB circuit board is installed inside the object platform (1-1); A plurality of test pins arranged in an array are provided on the PCB circuit board, and the top ends of the plurality of test pins are correspondingly distributed in a plurality of positioning through holes (1-12).

9. A gas meter warm-pressed panel testing device according to claim 5, characterized in that: The pressing plate assembly frame (1-2) comprises a stand (1-21), a pressing handle (1-22), a transmission connecting rod (1-23) and a pressing plate (1-24); the pressing handle (1-22) is arranged at the top end of the stand (1-21); one end of the transmission connecting rod (1-23) is connected to the pressing handle (1-22), and the other end is connected to the pressing plate (1-24).

10. A gas meter warm-pressed panel testing device according to claim 9, characterized in that: The pressing plate (1-24) is a transparent acrylic plate.

Images