Leakage-proof protection device of filling machine

Abstract

The utility model provides an anti-leakage protection device of a filling machine, and the anti-leakage protection device of the filling machine comprises a detection module, one end of the detection module is connected with a snap valve of the filling machine, and the detection module is used for detecting the connection state of a filling gun on the filling machine and the filling machine; the first end of the filling machine power supply module is connected with a power supply end, the second end of the filling machine power supply module is connected with the detection module, the third end of the filling machine power supply module is connected with the filling machine, and the power supply end is used for supplying power to an anti-leakage protection device of the filling machine. The filling machine power supply module is used for controlling the operation state of the filling machine according to the connection state of the filling gun and the filling machine, and the anti-leakage protection device of the filling machine can ensure the use safety of the filling machine and improve the filling safety of the filling machine.

Description

Technical Field

[0001] The present application belongs to the technical field of filling, and specifically relates to an anti-leakage protection device of a filling machine. Background Art

[0002] Fuel filling machines such as CNG filling machines, LNG filling machines, and hydrogen filling machines all have flammable and explosive media, which are easily dangerous to the environment when released into the air. When the fuel filling vehicle moves before the filling gun is removed, the breakaway valve of the filling machine will break, and the breakaway valve will fail to quickly reset and close due to mechanical failure, and the filling medium will be released, which is not conducive to the safe use of the filling gun. Utility Model Content

[0003] The present application provides an anti-leakage protection device for a filling machine to improve the safety of use during the filling process.

[0004] The present application provides a leakage protection device for a filling machine, comprising:

[0005] A detection module, one end of which is connected to the breakaway valve of the filling machine, and is used to detect the connection status between the filling gun on the filling machine and the filling machine;

[0006] A filling machine power supply module, wherein the first end of the filling machine power supply module is connected to the power supply end, the second end of the filling machine power supply module is connected to the detection module, and the third end of the filling machine power supply module is connected to the filling machine. The power supply end is used to provide power for the anti-leakage protection device of the filling machine. The filling machine power supply module is used to control the operating state of the filling machine according to the connection state between the filling gun and the filling vehicle. The filling gun and the filling machine are connected by a break valve, and the break valve is used to determine the connection state between the filling gun and the filling machine.

[0007] Furthermore, the anti-leakage protection device of the filling machine includes:

[0008] A power processing module, one end of which is connected to the filling machine power supply module, and the other end of which is connected to the detection module, for converting the high-voltage power input from the power supply end into a low-voltage power supply, and powering the detection module through the low-voltage power supply.

[0009] Furthermore, the filling machine power supply module includes:

[0010] an input unit, one end of which is connected to the power supply end, and the other end of which is connected to the power processing module, for supplying power to the power processing module;

[0011] An output unit, one end of which is connected to the input unit, and the other end of which supplies power to the filling machine to control the operating state of the filling machine.

[0012] Furthermore, the anti-leakage protection device of the filling machine includes:

[0013] A start button, one end of which is connected to the power processing module, and the other end of which is connected to the filling machine power supply module. The start button is used to start the filling machine and enable the filling machine power supply module to supply power to the filling machine.

[0014] Furthermore, a start button is used to conduct the circuit between the filling machine power supply module and the power processing module; when the start button is pressed, the filling machine power supply module supplies power to the power processing module through the input unit.

[0015] Furthermore, the detection module is connected to the breakaway valve of the filling machine through a detection component, and the breakaway valve is arranged at the connection between the filling gun and the filling machine; a switch control component is arranged between the detection module and the filling machine power supply module, and the switch control component is used to control the on-off status of the filling machine power supply module according to the on-off status of the detection component.

[0016] Furthermore, the filling machine power supply module is provided with a switch component, and the on and off of the switch component is controlled by the switch control component.

[0017] Furthermore, the switch control component is arranged opposite to the switch component; the switch control component is a relay, and the switch component is a relay normally open contact switch, and the relay controls the normally open contact switch of the relay to be closed or opened.

[0018] Furthermore, the third end of the filling machine power supply module is connected to the control valve of the filling machine. When the filling machine power supply module stops supplying power, the control valve is closed, causing the filling machine to stop running.

[0019] Furthermore, the anti-leakage protection device of the filling machine is located outside the filling machine and is connected to the filling machine through the filling machine power supply module and the detection module.

[0020] In the present application, a detection module is set up, one end of the detection module is connected to the break valve of the filling machine, and is used to detect the connection status between the filling gun on the filling machine and the filling machine; the filling machine power supply module is used to supply power to the filling gun, one end of which is connected to the detection module, and the other end is connected to the power supply end. When the detection module detects that the connection status between the filling gun and the filling machine is disconnected, the filling machine power supply module stops supplying power to the filling machine, so that the control valve automatically resets and closes due to power failure, and the control valve cuts off the pipeline to prevent the filling gun from leaking filling medium when the connection status between the filling gun and the filling machine is disconnected, causing danger to the environment.

[0021] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The structural diagram of the anti-leakage protection device of the filling machine provided in one embodiment of the present application is schematically shown.

[0024] Figure 2 The structural diagram of the anti-leakage protection device of the filling machine provided in one embodiment of the present application is schematically shown.

[0025] Figure 3 The structural diagram of the anti-leakage protection device of the filling machine provided in one embodiment of the present application is schematically shown.

[0026] Figure 4 The structural diagram of the anti-leakage protection device of the filling machine provided in one embodiment of the present application is schematically shown.

[0027] Figure 5 The structural diagram of the anti-leakage protection device of the filling machine provided in one embodiment of the present application is schematically shown.

[0028] Description of reference numerals:

[0029] The anti-leakage protection device 10 of the filling machine, the detection module 110, the filling machine power supply module 120, the power processing module 130, the switch control component 150, the input unit 121, the output unit 122, the switch component 123, the start button 141, and the detection component 111. DETAILED DESCRIPTION

[0030] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0031] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0032] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0033] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0034] The breakaway valve of the filling machine is set between the filling gun and the filling machine. When the filling gun is connected to the filling vehicle and the filling is started, the filling medium is filled into the filling vehicle through the pipe between the filling gun and the filling machine and the filling gun. When the filling vehicle moves without removing the filling gun, the filling gun is subjected to tension, which will cause the breakaway valve to break, and the filling medium may flow out from the breakaway valve, causing safety hazards.

[0035] The breakaway valve is a mechanical structure. There is a possibility that the filling gun is broken off from the filling machine's breakaway valve while the breakaway end of the breakaway valve is not completely closed, and the filling medium will flow out of the filling gun and leak into the environment.

[0036] Figure 1 FIG. 1 shows a schematic diagram of the structure of the anti-leakage protection device 10 of the filling machine provided in this embodiment. Figure 1 As shown, the embodiment of the present application provides an anti-leakage protection device 10 for a filling machine, comprising:

[0037] A detection module 110, one end of which is connected to the breakaway valve of the filling machine, and is used to detect the connection status between the filling gun on the filling machine and the filling machine;

[0038] The filling machine power supply module 120, the first end of the filling machine power supply module 120 is connected to the power supply end, the second end of the filling machine power supply module 120 is connected to the detection module 110, and the third end of the filling machine power supply module 120 is connected to the filling machine. The power supply end is used to provide power for the anti-leakage protection device 10 of the filling machine. The filling machine power supply module 120 is used to control the operating state of the filling machine according to the connection state between the filling gun and the filling machine. The filling gun and the filling machine are connected by a break valve, and the break valve is used to determine the connection state between the filling gun and the filling machine.

[0039] The detection module 110 is used to detect the connection state between the filling gun and the filling machine. The connection state between the filling gun and the filling machine refers to the change of the connection state between the filling gun and the filling machine, for example, when the filling gun is pulled by the filling vehicle, the filling gun is changed from a normal connection state with the filling machine to a disconnected state with the filling gun and the filling machine.

[0040] First, the detection module 110 is connected to the breakaway valve, which can detect changes in the connection state between the filling gun and the filling machine.

[0041] The detection module 110 detects that the connection between the filling gun and the filling machine is disconnected through the breaking valve, and the detection module 110 will be disconnected.

[0042] The filling machine power supply module 120 is used to supply power to the filling machine. A first end of the filling machine power supply module 120 is connected to a power supply end, and the power supply end is used to provide power to the anti-leakage protection device 10 of the filling machine.

[0043] The second end of the filling machine power supply module 120 is connected to the detection module 110 for obtaining the on / off status of the detection module 110 .

[0044] Furthermore, the connection method of the filling machine power supply module 120 is not limited to electrical connection, connection method with inductive relationship, etc.

[0045] The third end of the filling machine power supply module 120 is connected to the filling machine for supplying power to the filling machine. When the detection module 110 is detected to be disconnected, the passage between the third end of the filling machine power supply module 120 and the filling machine is disconnected, so that the filling gun cannot work.

[0046] Specifically, when the filling machine power supply module 120 stops supplying power to the filling machine, the control valve of the filling machine will automatically reset and close, so that the filling medium cannot flow out, and at the same time, the filling machine will stop working due to power failure.

[0047] In the present application, a detection module 110 is provided, one end of which is connected to the breakaway valve of the filling machine, and is used to detect the connection status between the filling gun on the filling machine and the filling machine; a filling machine power supply module 120 is used to supply power to the filling machine, one end of which is connected to the detection module 110, and the other end is connected to the power supply end. When the detection module 110 detects that the connection between the filling gun and the filling machine is disconnected, the filling machine power supply module 120 stops supplying power to the filling machine, causing the filling gun to stop working, thereby preventing the connection between the filling gun and the filling machine from being disconnected, causing leakage of the filling medium at the disconnected point, thereby causing danger to the environment.

[0048] Figure 2 The structure diagram of the anti-leakage protection device 10 of the filling machine provided in this embodiment is shown. Further, the anti-leakage protection device 10 of the filling machine includes:

[0049] The power processing module 130 has one end connected to the filling machine power supply module 120, and the other end connected to the detection module 110, and is used to convert the high-voltage power input from the power supply end into a low-voltage power supply, and power the detection module 110 through the low-voltage power supply.

[0050] Specifically, one end of the power processing module 130 is connected to the filling machine power supply module 120, and the other end of the power processing module 130 is connected to the detection module 110. The filling machine power supply module 120 connects the high-voltage power supply connected to the power supply end to the power processing module 130, converts the high-voltage power supply to a low-voltage power supply through the power processing module 130, and powers the detection module 110 through the low-voltage power supply.

[0051] The power processing module 130, the detection module 110, and the breakaway valve form a circuit. When the detection module 110 detects that the connection between the filling gun and the filling machine is disconnected, the detection module 110 will be disconnected; the filling machine power supply module 120 will detect that the detection module 110 is disconnected, and then disconnect the circuit that supplies power to the filling machine.

[0052] The input end of the filling machine power supply module 120 is connected to 220V AC through the power supply end, and the power supply processing module 130 converts it into 24V DC through the input end of the power supply processing module 130. When the detection module 110 is turned on, the power supply processing module 130 outputs 24V DC; when the detection module 110 is turned off, no 24V DC voltage is output.

[0053] In this embodiment, a power processing module 130 is arranged between the detection module 110 and the filling machine power supply module 120. The high-voltage power supply is converted into a low-voltage power supply through the power processing module 130, and the detection module 110 is powered by the low-voltage power supply. When the filling gun falls off and the line at the break valve is exposed, it will not cause a high-voltage threat, which improves the safety of the filling machine to a certain extent.

[0054] Figure 3 The schematic diagram of the structure of the anti-leakage protection device 10 of the filling machine provided in this embodiment is shown. Further, the filling machine power supply module 120 includes:

[0055] An input unit 121, one end of the input unit 121 is connected to the power supply end, and the other end of the input unit 121 is connected to the power processing module 130, for supplying power to the power processing module 130;

[0056] The output unit 122 has one end connected to the input unit 121 and the other end of the output unit 122 supplies power to the filling machine to control the operating state of the filling machine.

[0057] Furthermore, one end of the input unit 121 is connected to the power supply end, and the other end of the input unit 121 is connected to the power processing module 130 for supplying power to the power processing module 130 .

[0058] One end of the output unit 122 is connected to the other end of the input unit 121 , and the other end of the output unit 122 is connected to the filling machine to supply power to the filling gun so as to control the operating state of the filling machine.

[0059] The input unit 121 is connected to the power supply terminal through a wiring terminal, and the output unit 122 is connected to the filling machine through a wiring terminal. One end of the wiring terminal is a live wire end for connecting the live wire; the other end is a neutral wire end for connecting the neutral wire.

[0060] The live wire terminal of the input unit 121 is connected to the live wire terminal of the output unit 122, and the neutral wire terminal of the input unit 121 is connected to the neutral wire terminal of the output unit 122. One end of the output terminal of the power processing module 130 is connected to the live wire terminal of the input unit 121, and the other end is connected to the neutral wire terminal of the output unit 122.

[0061] A control switch is provided on the connection circuit between the live wire end of the input unit 121 and the live wire end of the output unit 122. After the detection module 110 is disconnected, the control switch is disconnected to disconnect the connection circuit between the live wire end of the input unit 121 and the live wire end of the output unit 122, so that the filling machine power supply module 120 cannot supply power.

[0062] In this embodiment, the input unit 121 is connected to the output unit 122 to form a power supply circuit. The input unit 121 and the output unit 122 are respectively connected to the power processing module 130 to form a power supply circuit and a control circuit, which plays a role in controlling the power supply circuit.

[0063] Figure 4 The structure diagram of the anti-leakage protection device 10 of the filling machine provided in this embodiment is shown. Further, the anti-leakage protection device 10 of the filling machine includes:

[0064] A start button 141, one end of which is connected to the power processing module 130, and the other end of which is connected to the filling machine power supply module 120. The start button 141 is used to start the filling machine and enable the filling machine power supply module 120 to supply power to the filling machine.

[0065] Specifically, the start button 141 forms a circuit with the power processing module 130 and the filling machine power supply module 120. When the filling machine needs to be started, the start button 141 is pressed and the circuit is connected, and the filling machine power supply module 120 supplies power to the filling machine.

[0066] The anti-leakage protection device of the filling machine is as follows: Figure 4 As shown, further, the start button 141 is used to connect the circuit between the filling machine power supply module 120 and the power processing module 130; when the start button 141 is pressed, the circuit between the start button 141 and the power processing module 130 and the filling machine power supply module 120 is connected, and the filling machine power supply module 120 supplies power to the power processing module 130 through the input unit 121.

[0067] Based on the above embodiment, the start button 141, the filling machine power supply module 120, and the power processing module 130 form a circuit. When the start button 141 is not pressed, the filling machine power supply module 120 is not turned on, so the power processing module 130 is also not turned on. The circuit between the power processing module 130 and the detection module 110 is not turned on, and the detection module 110 is equivalent to a short circuit. Therefore, the filling machine power supply module 120 cannot output voltage to power the filling machine.

[0068] When the start button 141 is pressed, the filling machine power supply module 120 is turned on, the power processing module 130 is also turned on, the circuit between the power processing module 130 and the detection module 110 is turned on, and the detection module 110 is equivalent to being turned on. Then, the circuit of the filling machine power supply module 120 can be turned on, so the filling machine power supply module 120 can supply power to the filling machine.

[0069] Therefore, the start button 141 is pressed to connect the passage between the filling machine power supply module 120 and the detection module 110, so that the filling machine power supply module 120 supplies power to the filling machine.

[0070] Figure 5 A schematic structural diagram of the anti-leakage protection device of the filling machine provided in this embodiment is shown.

[0071] Furthermore, the detection module 110 is connected to the breakaway valve of the filling machine through the detection component 111, and the breakaway valve is arranged at the connection between the filling gun and the filling machine; a switch control component 150 is arranged between the detection module 110 and the filling machine power supply module 120, and the switch control component 150 is used to control the on-off status of the filling machine power supply module 120 according to the on-off status of the detection component 111.

[0072] Specifically, the detection component 111 can be a wire connecting the detection module 110 and the two ends of the break valve. When the break valve is broken, the wire is broken, and the circuit between the detection module 110 and the power processing module 130 is disconnected, so no current passes through the switch control component 150.

[0073] The on and off of the switch control component 150 will affect the on and off of the path between the input unit 121 and the output unit 122 in the filling machine power supply module 120 .

[0074] As an optional implementation, the switch control component 150 can be connected between the detection module 110 and the power processing module 130, and connected to the circuit of the input unit 121 and the output unit 122 of the filling machine power supply module 120. When the switch control component 150 is disconnected due to the detection module 110, the circuit conduction of the input unit 121 and the output unit 122 is also affected.

[0075] As an optional embodiment, the switch control component 150 is placed opposite to the filling machine power supply module 120. The switch control component 150 is an inductor component. When the switch control component 150 is turned on, the magnetic field generated by the coil of the inductor component will affect the conduction between the circuits of the input unit 121 and the output unit 122 in the filling machine power supply module 120.

[0076] Specifically, when the switch control component 150 is disconnected, the circuit between the input unit 121 and the output unit 122 is also disconnected, so the filling machine power supply module 120 cannot supply power to the filling machine.

[0077] In this embodiment, a switch control component 150 is provided, and the switch control component 150 is used as a feedback device to feed back the on / off status of the detection module 110 to the filling machine power supply module 120. When the detection module 110 is disconnected, it indicates that the connection status between the filling gun and the filling machine is disconnected. According to the switch control component 150, feedback is quickly given to the filling machine power supply module 120 to stop supplying power to the filling machine, thereby improving the safety of the filling machine.

[0078] like Figure 5 As shown, further, the filling machine power supply module 120 is provided with a switch component 123 , and the on and off of the switch component 123 is controlled by the switch control component 150 .

[0079] The filling machine power supply module 120 is provided with a switch component 123 . Based on the above embodiment, the switch component 123 is arranged on the circuit of the input unit 121 and the output unit 122 of the filling machine power supply module 120 .

[0080] The on and off of the switch component 123 is controlled by the switch control component 150. When the switch control component 150 is on, the switch component 123 is closed; when the switch control component 150 is off, the switch component 123 is off.

[0081] like Figure 5 As shown, further, the switch control component 150 is arranged opposite to the switch component 123; the switch control component 150 is a relay, and the switch component 123 is a relay normally open contact switch, and the relay controls the relay normally open contact switch to be closed or opened.

[0082] Based on the above embodiment, the switch control component 150 and the switch component 123 are arranged opposite to each other, the switch control component 150 is a relay, and the switch component 123 is a relay normally open contact switch. When the relay is turned on, the relay normally open contact switch is closed. At this time, the circuit between the input unit 121 and the output unit 122 of the filling machine power supply module 120 is turned on, and the filling machine power supply module 120 supplies power to the filling machine.

[0083] When the relay is not turned on, the normally open contact switch of the relay is turned on, the circuit between the input unit 121 and the output unit 122 of the filling machine power supply module 120 is disconnected, and the filling machine power supply module 120 cannot supply power to the filling machine. When the relay is not turned on, it means that the detection module 110 detects that the connection between the filling gun and the filling machine is disconnected, so it stops supplying power to the filling gun to avoid leakage of the filling medium, which can further improve the safety of the filling machine.

[0084] Furthermore, the third end of the filling machine power supply module 120 is connected to the control valve of the filling machine. When the filling machine power supply module 120 stops supplying power, the control valve is closed, so that the filling gun stops running.

[0085] Specifically, the third end of the filling machine power supply module 120 is connected to the control valve in the filling machine, and the control valve is located at the conveying pipeline connecting the filling medium storage bin and the filling gun. When the filling machine power supply module 120 stops supplying power to the filling machine, the control valve is reset to a closed state. At this time, the filling medium cannot flow out, which can prevent the leakage of the filling medium.

[0086] Furthermore, the anti-leakage protection device 10 of the filling machine is located outside the filling machine and is connected to the filling machine through the filling machine power supply module 120 and the detection module 110 .

[0087] Specifically, the anti-leakage protection device 10 of the filling machine is located outside the filling machine. After being connected to the power supply end, it can be connected to the filling machine through the filling machine power supply module 120 and the detection module 110 to detect the connection status between the filling gun and the filling machine, and when the connection between the filling gun and the filling machine is disconnected, the power supply to the filling machine is stopped and the control valve is closed to prevent the leakage of the filling medium when the pull-off valve is pulled off, thereby improving the safety of use. On the other hand, the use environment of the anti-leakage protection device of the filling machine is flexible, and it can be connected to the filling machine when needed to ensure its safety in use.

[0088] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

[0089] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the invention disclosed herein. The present application is intended to cover any modification, use or adaptation of the present application, which follows the general principles of the present application and includes common knowledge or customary technical means in the art that are not disclosed in the present application.

[0090] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A leakage protection device for a filling machine, characterized in that: The anti-leakage protection device of the filling machine comprises: A detection module, one end of which is connected to the breakaway valve of the filling machine, and is used to detect the connection status between the filling gun on the filling machine and the filling machine; A filling machine power supply module, wherein the first end of the filling machine power supply module is connected to the power supply end, the second end of the filling machine power supply module is connected to the detection module, and the third end of the filling machine power supply module is connected to the filling machine. The power supply end is used to provide power for the anti-leakage protection device of the filling machine. The filling machine power supply module is used to control the operating state of the filling machine according to the connection state between the filling gun and the filling machine. The filling gun and the filling machine are connected by a break valve, and the break valve is used to determine the connection state between the filling gun and the filling machine.

2. The anti-leakage protection device of the filling machine according to claim 1, characterized in that: The anti-leakage protection device of the filling machine also includes: A power processing module, one end of which is connected to the filling machine power supply module, and the other end of which is connected to the detection module, for converting the high-voltage power input from the power supply end into a low-voltage power supply, and powering the detection module through the low-voltage power supply.

3. The anti-leakage protection device of the filling machine according to claim 2, characterized in that: The filling machine power supply module comprises: an input unit, one end of which is connected to the power supply end, and the other end of which is connected to the power processing module, for supplying power to the power processing module; An output unit, one end of which is connected to the input unit, and the other end of which supplies power to the filling machine to control the operating state of the filling machine.

4. The anti-leakage protection device of the filling machine according to claim 3, characterized in that: The anti-leakage protection device of the filling machine also includes: A start button, one end of which is connected to the power processing module, and the other end of which is connected to the filling machine power supply module. The start button is used to start the filling machine and enable the filling machine power supply module to supply power to the filling machine.

5. The anti-leakage protection device of the filling machine according to claim 4, characterized in that: The start button, the power processing module and the filling machine power supply module form a loop; When the start button is pressed, the circuit between the start button and the power processing module and the filling machine power supply module is connected, and the filling machine power supply module supplies power to the power processing module through the input unit.

6. The anti-leakage protection device of the filling machine according to claim 1, characterized in that: The detection module is connected to the breakaway valve of the filling machine through a detection component, and the breakaway valve is arranged at the connection between the filling gun and the filling machine; after the breakaway valve is broken by an external force, the detection component is in a disconnected state; A switch control component is provided between the detection module and the filling machine power supply module, and the switch control component is used to control the on-off status of the filling machine power supply module according to the on-off status of the detection component.

7. The anti-leakage protection device of the filling machine according to claim 6, characterized in that: The filling machine power supply module is provided with a switch component, and the on and off of the switch component is controlled by the switch control component.

8. The anti-leakage protection device of the filling machine according to claim 7, characterized in that: The switch control component is arranged opposite to the switch component; The switch control component is a relay, and the switch component is a relay normally open contact switch. The relay controls the normally open contact switch of the relay to be closed or opened.

9. The anti-leakage protection device of the filling machine according to claim 1, characterized in that: The third end of the filling machine power supply module is connected to the control valve of the filling machine. When the filling machine power supply module stops supplying power, the control valve is closed to stop the filling machine.

10. The anti-leakage protection device of the filling machine according to claim 1, characterized in that: The anti-leakage protection device of the filling machine is located outside the filling machine and is connected to the filling machine through the filling machine power supply module and the detection module.

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