Quick connection structure for gas flow meter and remote transmission acquisition device

Abstract

The utility model discloses a gas flow meter and remote transmission acquisition device quick connection structure, which comprises a first socket, a second socket and a connecting line, two ends of the connecting line are connected with a first plug and a second plug, the first plug and the second plug are respectively matched with the first socket and the second socket, the first socket is used for being installed on a gas flow meter, and the second socket is used for being installed on a remote transmission acquisition device. The second socket is used for being installed on a remote transmission acquisition device, the connecting line comprises a plurality of data transmission lines, the first socket is provided with a first data transmission jack, the first plug is provided with a first data transmission pin, the first data transmission jack is connected with a data line of the gas flow meter, the second socket is provided with a second data transmission jack, and the second data transmission pin is connected with the second data transmission jack. The second plug is provided with a second data transmission pin, and the second data transmission pin is connected with a data line of the remote transmission acquisition device. According to the utility model, the standardized connection of the gas flowmeter and the remote transmission acquisition device is realized, and the interchangeability and compatibility are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to gas system connecting equipment technical field, concretely relates to a flowmeter and remote acquisition device quick connecting structure. BACKGROUND

[0002] The gas metering instrument is as the basis of trade measurement, and is directly related to the vital interests of gas enterprises and users. At present, the gas metering instrument can upload the metering information to the system platform in time by installing the remote acquisition device. By analyzing the meter upload information, not only the meter operation condition can be judged, and the predictive maintenance can be carried out, but also the abnormal gas working condition can be found and handled in time by analyzing the user gas law, and the safe operation level of the gas enterprise is improved.

[0003] In the current gas enterprise application, the gas flowmeter and the remote acquisition device manufacturer, style and model are more, and the connection mode between the gas flowmeter and the remote acquisition device of each manufacturer is mainly wire connection. However, the gas flowmeter needs to be calibrated regularly according to the relevant national standards, and the gas flowmeter needs to be disassembled and sent for inspection or disassembled and maintained. However, the communication protocols between the gas flowmeters and the remote acquisition devices of each manufacturer are inconsistent, so only the same manufacturer and the same model equipment can be replaced, and the other manufacturer's gas flowmeter cannot operate normally, which causes the increase of equipment maintenance cost, and the valve control shell of the remote acquisition device needs to be disassembled and reconnected every time the gas flowmeter is installed and replaced, which brings great inconvenience to the gas enterprise for the later gas flowmeter operation and maintenance and replacement. Therefore, it is necessary to unify the communication protocols of the gas flowmeter and the remote acquisition device, standardize the connection between the gas flowmeter and the remote acquisition device, improve the interchangeability and compatibility between the gas flowmeters and the remote acquisition devices produced by different manufacturers, so as to improve the operation efficiency of the gas flowmeter, and improve the reliability and accuracy of the gas metering data. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the above-mentioned prior art's shortcomings, standardizing the connection between the gas flowmeter and the remote acquisition device, and providing a gas flowmeter and remote acquisition device quick connecting structure.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of gas flowmeter and remote acquisition device quick connection structure, including first socket, second socket and connecting line, the connecting line both ends are connected with first plug and second plug, the first plug and second plug are used to match with first socket and second socket respectively, the first socket is used to install on gas flowmeter, the second socket is used to install on remote acquisition device, the connecting line includes multiple data transmission lines, first data transmission jack is provided on the first socket, first data transmission pin is provided on the first plug, the first data transmission jack is connected with the data line of gas flowmeter, the first data transmission pin is connected with the first end of data transmission line, second data transmission jack is provided on the second socket, second data transmission pin is provided on the second plug, the second data transmission jack is connected with the data line of remote acquisition device, the second data transmission pin is connected with the second end of data transmission line.

[0007] The utility model realizes the standardization connection of gas flowmeter and remote acquisition device, realizes the quick conversion and transmission of gas flowmeter acquisition data by setting fixed first socket and second socket on gas flowmeter and remote acquisition device, and the quick reception of remote acquisition device is facilitated.

[0008] Preferably, the connecting line further includes a power positive line and a power negative line, the first socket is provided with a first positive signal transmission jack and a first negative signal transmission jack, the first positive signal transmission jack and the first negative signal transmission jack are used to connect the positive input line and the negative input line of the gas flowmeter respectively, the second socket is provided with a third positive signal transmission jack and a fourth negative signal transmission jack, the third positive signal transmission jack and the fourth negative signal transmission jack are used to connect the positive output line and the negative output line of the remote acquisition device respectively. By setting the power positive line and the power negative line, the remote acquisition device is realized to supply power for the gas flowmeter, the endurance of the gas flowmeter is improved, and the stable operation of the gas flowmeter is ensured.

[0009] Preferably, the first data transmission jack includes a first RS485 signal transmission jack, the first RS485 signal transmission jack is used to connect with the RS485 signal line of the gas flowmeter, the second data transmission jack includes a second RS485 signal transmission jack, and the second RS485 signal transmission jack is used to connect with the RS485 signal line of the remote acquisition device.

[0010] Preferably, the first data transmission jack comprises a first pulse signal transmission jack for connecting with a pulse signal line of the gas flow meter, and the second data transmission jack comprises a second pulse signal transmission jack for connecting with a pulse signal line of the remote acquisition device. By arranging the RS485 signal line and the RS485 signal transmission pin, the conversion and transmission of the RS485 signal of the gas flow meter are realized, and by arranging the pulse signal line and the pulse signal transmission pin, the conversion and transmission of the pulse signal of the gas flow meter are realized, thereby improving the interchangeability and compatibility between the gas flow meters produced by different manufacturers and the remote acquisition device.

[0011] Preferably, the first data transmission jack comprises a first broken line state signal transmission jack and a first ground signal transmission jack, the first broken line state signal transmission jack and the first ground signal transmission jack are short-circuited, the second data transmission jack comprises a second broken line state signal transmission jack and a second ground signal transmission jack, the second broken line state signal transmission jack is used for connecting with a broken line detection circuit of the remote acquisition device, and the second ground signal transmission jack is used for connecting with a ground signal line of the remote acquisition device.

[0012] The first broken line state signal transmission pin and the first ground signal transmission pin are short-circuited, when the first plug and the second plug are normally connected with the first socket and the second socket respectively, the first broken line state signal transmission pin and the first ground signal transmission pin form a closed loop with the second broken line state signal transmission pin and a broken line detection circuit of the remote acquisition device, when the first plug or the second plug is pulled out, the loop is disconnected, the broken line detection circuit detects the disconnection, and a control module in the remote acquisition device controls a valve driving circuit to close the valve.

[0013] Preferably, the first data transmission jack comprises a first low-voltage alarm signal transmission jack for connecting with a low-voltage alarm circuit of the gas flow meter, and the second data transmission jack comprises a second low-voltage alarm signal transmission jack for connecting with a low-voltage alarm signal line of the remote acquisition device. By connecting with the low-voltage alarm circuit, an alarm is given after detecting that the gas flow meter is in a low-voltage state, an alarm signal is output to the remote acquisition device, and a control module in the remote acquisition device controls a valve driving circuit to close the valve.

[0014] Preferably, the remote acquisition device comprises a power module, a control module, a broken line detection circuit and a valve driving circuit, the control module is connected with the power module, the broken line detection circuit and the valve driving circuit respectively, and the control module is used for receiving an RS485 signal, or receiving a pulse signal, or receiving a signal of the broken line detection circuit to control the valve driving circuit to close the valve, or receiving a low-voltage alarm signal to control the valve driving circuit to close the valve.

[0015] Preferably, the gas flow meter comprises a built-in power module and a low-voltage alarm circuit, the built-in power module is connected with the low-voltage alarm circuit, and the low-voltage alarm circuit is used for monitoring the output voltage of the built-in power module and outputting a low-voltage alarm signal.

[0016] Preferably, the first plug and the second plug are both aviation plug structures.

[0017] Preferably, the first socket and / or the second socket are movably connected with a cap. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be described in further detail in connection with the drawings:

[0019] Figure 1 is the first plug and the first socket of the utility model after connecting section view;

[0020] Figure 2 is the first socket of the utility model section view;

[0021] Figure 3 is the pin definition diagram of the first plug or the second plug of the utility model.

[0022] Mark explanation: 1. first socket;2. first plug;3. first data transmission jack;4. first data transmission pin;5. bolt;6. cap;7. gas flow meter;8. external thread. DETAILED DESCRIPTION

[0023] The utility model provides a kind of gas flow meter and remote acquisition device quick connection structure, including first socket, second socket and connecting line, connecting line end is connected with first plug and second plug, first plug and second plug are used to respectively with first socket and second socket matching, first socket is used to install on gas flow meter, second socket is used to install on remote acquisition device.

[0024] In the embodiment, connecting line includes a power supply positive line, a power supply negative line, multiple data transmission lines and a ground wire.Specifically, data transmission line has six, including two RS485 transmission lines, two pulse signal transmission lines, a broken line state signal transmission line and a low-voltage alarm signal transmission line.

[0025] In the embodiment, as Figure 1As shown, the first socket 1 is provided with a first data transmission jack 3, and the first plug 2 is provided with a first data transmission pin 4. The first data transmission jack 3 is connected to the data line of the gas flow meter, and the first data transmission pin 4 is connected to the first end of the data transmission line. The first socket 1 is also provided with a first positive signal transmission jack and a first negative signal transmission jack, which are used to connect the positive input line and the negative input line of the gas flow meter, respectively. In this embodiment, the first data transmission jack includes two first RS485 signal transmission jacks, two first pulse signal transmission jacks, a first disconnection status signal transmission jack, a first grounding signal transmission jack, and a first low-pressure alarm signal transmission jack. The first RS485 signal transmission jack is used to connect to the RS485 signal line of the gas flow meter; the first pulse signal transmission jack is used to connect to the pulse signal line of the gas flow meter; the first disconnection status signal transmission jack and the first grounding signal transmission jack are short-circuited; and the first low-pressure status signal transmission jack is used to connect to the low-pressure alarm circuit of the gas flow meter.

[0026] In this embodiment, the second socket is provided with a second data transmission jack, and the second plug is provided with a second data transmission pin. The second data transmission jack is connected to the data line of the remote acquisition device, and the second data transmission pin is connected to the second end of the data transmission line. The second socket is provided with a third positive signal transmission jack and a fourth negative signal transmission jack, which are used to connect the positive output line and the negative output line of the remote acquisition device, respectively. The second data transmission jack includes two second RS485 signal transmission jacks, two second pulse signal transmission jacks, one second disconnection status signal transmission jack, one second grounding signal transmission jack, and one second low-voltage alarm signal transmission jack. The second RS485 signal transmission jack is used to connect to the RS485 signal line of the remote acquisition device; the second pulse signal transmission jack is used to connect to the pulse signal line of the remote acquisition device; the second disconnection status signal transmission jack is used to connect to the disconnection detection circuit of the remote acquisition device; the second grounding signal transmission jack is used to connect to the grounding signal line of the remote acquisition device; and the second low-voltage alarm signal transmission jack is used to connect to the low-voltage alarm signal line of the remote acquisition device.

[0027] In this embodiment, by short-circuiting the first disconnection status signal transmission pin and the first ground signal transmission pin, when the first plug and the second plug are normally connected to the first socket and the second socket respectively, the first disconnection status signal transmission pin and the first ground signal transmission pin form a closed loop with the second disconnection status signal transmission pin and the disconnection detection circuit of the remote acquisition device. When the first plug or the second plug is pulled out, the loop is broken, the disconnection detection circuit detects the disconnection, and the control module in the remote acquisition device controls the valve drive circuit to close the valve.

[0028] In this embodiment, the remote acquisition device includes a power module, a control module, a disconnection detection circuit, and a valve drive circuit. The control module is connected to the power module, the disconnection detection circuit, and the valve drive circuit respectively. The control module is used to receive RS485 signals, or receive pulse signals, or receive signals from the disconnection detection circuit and then control the valve drive circuit to close the valve, or receive low-pressure alarm signals and then control the valve drive circuit to close the valve.

[0029] In this embodiment, the gas flow meter includes a built-in power supply module and a low-pressure alarm circuit. The built-in power supply module is connected to the low-pressure alarm circuit, which monitors the output voltage of the built-in power supply module and outputs a low-pressure alarm signal. Through connection with the low-pressure alarm circuit, an alarm is triggered upon detecting that the gas flow meter is in a low-pressure state, and an alarm signal is output to the remote data acquisition device. The control module within the remote data acquisition device then controls the valve drive circuit to close the valve.

[0030] In this embodiment, as Figure 2 As shown, both the first and second plugs are aviation plug structures. Caps 6 are movably connected to the first and second sockets. The first socket 1 and the second socket are respectively fixed to the gas flow meter 7 and the housing of the remote data acquisition device by bolts 5. External threads 8 are provided on the outer walls of the first socket 1 and the second socket, and internal threads are provided on the inner wall of the cap 6. The first socket 1 and the second socket are threadedly connected to the cap 6.

[0031] In this embodiment, during specific use, the first socket and the second socket are respectively installed in the preset holes of the gas flow meter and the remote data acquisition device, and fixed with bolts. The socket on the first socket is connected to the corresponding wiring cable inside the gas flow meter, and the socket on the second socket is connected to the corresponding wiring cable inside the remote data acquisition device. Then, the first plug is inserted into the first socket, and the second plug is inserted into the second socket, thus initiating charging and data transmission. When the gas flow meter outputs a low-pressure alarm signal to the remote data acquisition device, the remote data acquisition device controls the valve to close; when the first plug is disconnected from the first socket or the second plug is disconnected from the second socket, the remote data acquisition device controls the valve to close.

[0032] This invention achieves a standardized connection between a gas flow meter and a remote data acquisition device. By setting fixed first and second sockets on both the gas flow meter and the remote data acquisition device, it enables rapid conversion and transmission of data acquired by the gas flow meter, facilitating rapid reception by the remote data acquisition device. By providing positive and negative power lines, the remote data acquisition device supplies power to the gas flow meter, improving the gas flow meter's endurance and ensuring stable operation. By providing an RS485 signal line and RS485 signal transmission pins, it enables the conversion and transmission of RS485 signals from the gas flow meter. Furthermore, by providing a pulse signal line and pulse signal transmission pins, it enables the conversion and transmission of pulse signals from the gas flow meter, improving the interchangeability and compatibility between gas flow meters and remote data acquisition devices from different manufacturers.

[0033] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope defined in the claims.

Claims

1. A quick connection structure of a gas flowmeter and a remote acquisition device, characterized in that, The utility model provides a kind of gas flow meter remote transmission device, including first socket, second socket and connecting line, the connecting line one end is connected with first plug and second plug, and the first plug and second plug are used to match with first socket and second socket respectively, and the first socket is used to be installed on gas flow meter, and the second socket is used to be installed on remote collection device, and the connecting line includes multiple data transmission lines, and first data transmission jack is provided on the first socket, and first data transmission pin is provided on the first plug, and the first data transmission jack is connected with the data line of gas flow meter, and the first data transmission pin is connected with the first end of data transmission line, and second data transmission jack is provided on the second socket, and second data transmission pin is provided on the second plug, and the second data transmission jack is connected with the data line of remote collection device, and the second data transmission pin is connected with the second end of data transmission line.

2. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The connecting line further includes power supply positive line and power supply negative line, and first positive signal transmission jack and first negative signal transmission jack are provided on the first socket, and the first positive signal transmission jack and first negative signal transmission jack are used to connect the positive input line and negative input line of gas flow meter respectively, and third positive signal transmission jack and fourth negative signal transmission jack are provided on the second socket, and the third positive signal transmission jack and fourth negative signal transmission jack are used to connect the positive output line and negative output line of remote collection device respectively.

3. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The first data transmission jack includes first RS485 signal transmission jack, and the first RS485 signal transmission jack is used to connect the RS485 signal line of gas flow meter, and the second data transmission jack includes second RS485 signal transmission jack, and the second RS485 signal transmission jack is used to connect the RS485 signal line of remote collection device.

4. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The first data transmission jack includes first pulse signal transmission jack, and the first pulse signal transmission jack is used to connect the pulse signal line of gas flow meter, and the second data transmission jack includes second pulse signal transmission jack, and the second pulse signal transmission jack is used to connect the pulse signal line of remote collection device.

5. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The first data transmission jack includes first broken line state signal transmission jack and first ground signal transmission jack, and the first broken line state signal transmission jack and first ground signal transmission jack are short-circuited, and the second data transmission jack includes second broken line state signal transmission jack and second ground signal transmission jack, and the second broken line state signal transmission jack is used to connect the broken line detection circuit of remote collection device, and the second ground signal transmission jack is used to connect the ground signal line of remote collection device.

6. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The first data transmission jack includes first low-voltage alarm signal transmission jack, and the first low-voltage state signal transmission jack is used to connect the low-voltage alarm circuit of gas flow meter, and the second data transmission jack includes second low-voltage alarm signal transmission jack, and the second low-voltage alarm signal transmission jack is used to connect the low-voltage alarm signal line of remote collection device.

7. The quick connection structure of the gas flowmeter and the remote acquisition device according to any one of claims 3-6, characterized in that, The remote acquisition device comprises a power module, a control module, a disconnection detection circuit and a valve driving circuit, the control module is connected with the power module, the disconnection detection circuit and the valve driving circuit respectively, the control module is used for receiving an RS485 signal, or receiving a pulse signal, or receiving a signal of the disconnection detection circuit to control the valve driving circuit to close the valve, or receiving a low-voltage alarm signal to control the valve driving circuit to close the valve.

8. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The gas flow meter comprises a built-in power module and a low-voltage alarm circuit, the built-in power module is connected with the low-voltage alarm circuit, and the low-voltage alarm circuit is used for monitoring an output voltage of the built-in power module and outputting a low-voltage alarm signal.

9. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The first plug and the second plug are both aviation plug structures.

10. The quick connection structure of the gas flowmeter and the remote acquisition device according to claim 1, characterized in that, The first socket and / or the second socket are movably connected with a cap.

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