Train water feeding connector device

Abstract

The invention provides a train water supply connector device, which belongs to the technical field of train water supply, and comprises a locking unit, a sensor unit, a control unit, a water supply pipe, a trigger switch, an upper computer communication interface and a water injection well control valve, the locking unit is used for connecting the train water feeding connector device with a carriage water injection pipe in a sealed mode when a train is fed with water, the control unit is connected with the locking unit, the sensor unit, the trigger switch, the upper computer communication interface and the water injection well control valve, and the control unit is used for controlling the train water feeding process and has an independent working mode and a linkage working mode. The water feeding pipe is arranged at the bottom of the sensor unit and used for supplying water to the train water feeding connector device from a water injection well, the trigger switch is used for starting the control unit to control the water feeding process including the normal water feeding process or emergency stop under the abnormal condition, and the upper computer communication interface is used for receiving a control instruction of an upper computer in a linkage mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of train water supply, in particular to a train water supply connector device. BACKGROUND

[0002] Trains are important means of transportation for people to travel or transport goods. After the train arrives at the station, the train needs to be watered. Currently, train watering is usually completed manually. The main steps include: after the train arrives at the station, the water supply personnel connect the rubber water pipe of the ground water well to the train water inlet, then open the water supply valve to water; after watering is completed, the water supply valve is closed, and the rubber water pipe is pulled out, and the operation is repeated for each train compartment. In this traditional watering method, the watering connector needs to be manually disassembled and assembled by the water supply personnel for each train compartment, which is complicated to operate. The train usually stays at the station for a short time, which affects the train operation time when using the traditional method to water, or the train starts after arriving at the station, and the watering pipe is still connected to the train water inlet, which may cause damage to the watering connector or the train water inlet. It is difficult to achieve a secure connection with the train water inlet in the traditional watering method because the train conical water inlet has various types, and the ground water pipe has a relatively fixed size, which is difficult to match. After the train is filled with water, it is difficult for the water supply personnel to close the water valve in time due to the urgency of the watering time and the large number of train compartments, resulting in a large amount of water overflowing from the overflow port. For some stations with frequent water supply, hundreds of watering operations need to be completed every day, which is extremely labor-intensive and causes a large amount of water waste.

[0003] Currently, the existing watering connector and train water inlet mostly have a single locking mechanism, which has low reliability, is easy to cause water waste, and mostly lacks water pressure and flow monitoring functions, making it difficult to achieve precise water control. SUMMARY

[0004] The purpose of the present application is to provide a train water supply connector device, which has a double locking mechanism that can be complementary to improve the reliability of the watering connector locking during the train watering process, and multiple sensors that can work together to monitor the precise water control during the train watering process, thereby saving water resources.

[0005] To achieve the above purpose, the present application provides the following technical solutions:

[0006] A train water supply connector device, characterized in that it includes a locking unit, a sensor unit, a control unit, a water supply pipe, a trigger switch, a host computer communication interface, and a water injection well control valve. The locking unit is positioned above the sensor unit and is used to seal the train water supply connector device to the car's water injection pipe during train water supply. The control unit is connected to the locking unit, sensor unit, trigger switch, host computer communication interface, and water injection well control valve. The control unit controls the train water supply process and has both independent and linked operating modes. The water supply pipe is located at the bottom of the sensor unit and supplies water from the water injection well to the train water supply connector device. The trigger switch is used to activate the control unit to control the water supply process, including normal water supply procedures or emergency stops in abnormal situations. The host computer communication interface is used to receive control commands from the host computer in linked mode.

[0007] Furthermore, the locking unit includes an electromagnetic locking device, a hydraulic locking chamber, and a flow restrictor. The electromagnetic locking device is sleeved on the top of the locking unit, and the center of the electromagnetic locking device is a water inlet. The locking unit has an inverted truncated cone inside, and the cavity between the outer wall of the truncated cone and the inner wall of the locking unit is the hydraulic locking chamber. A flow restrictor is provided at the bottom of the inverted truncated cone. The locking unit is connected to the control unit through the electromagnetic locking device.

[0008] Furthermore, the sensor unit includes a flow sensor, a pressure sensor, and a water pipe connector. The top outer wall of the water pipe connector is connected to the bottom inner wall of the locking unit. A water inlet pipe is fitted onto the bottom outer wall of the water pipe connector. The flow sensor and the pressure sensor are respectively installed on both sides of the middle part of the water pipe connector. The sensor unit is connected to the control unit through the flow sensor and the pressure sensor. The flow sensor and the pressure sensor are used to detect water pressure and flow rate, providing water filling status information to the control unit.

[0009] Furthermore, the trigger switch is equipped with a start water filling button, a stop water filling button, an emergency stop button, and a quick release button. The water injection well control valve includes a water inlet and a water outlet. The water inlet is connected to the water supply pipe. When the water injection well control valve is closed, the water in the water supply pipe can flow out through the water outlet.

[0010] Furthermore, the top of the water pipe connector is connected to the locking unit in a corrugated or snap-fit ​​manner, and the bottom of the water pipe connector is connected to the water supply pipe in a corrugated or snap-fit ​​manner.

[0011] Furthermore, the control unit can start / stop the water filling process by triggering the start / stop water filling button of the switch. After receiving the start / stop signal, the control unit locks / releases the water inlet of the locking unit through the electromagnetic locking device, and controls the water filling process by opening / closing the water filling well control valve. In case of emergency, pressing the quick release button of the trigger switch will activate the quick release control process of the control unit, release the electromagnetic locking device, close the water filling well control valve, and enable the train water supply connector device to quickly detach from the car water filling pipe.

[0012] Furthermore, the control unit can receive control commands from the host computer via the host computer communication interface to start / stop the water filling process. In case of emergency, pressing the quick release button of the trigger switch or under the control of the host computer will quickly release the electromagnetic locking device and close the water injection well control valve, so that the train water supply connector device can be quickly disconnected from the car water injection pipe.

[0013] A method for using a train water supply connector device, characterized by comprising the following steps:

[0014] S1. Water Injection Preparation: Place the locking unit on the outer wall of the water injection pipe in the carriage, press the start water injection button of the trigger switch, and after the control unit receives the start control signal, it first outputs a control signal to lock the electromagnetic locking device, and then controls the water injection well control valve to open. After the water flows through the water inlet of the water injection well control valve, it flows through the water inlet pipe and then through the sensor unit and the locking unit.

[0015] S2. Locking and sealing before water filling: When water begins to flow, the water flows through the flow limiter of the locking unit. Under the diversion action of the flow limiter, the water first fills the hydraulic locking chamber, forming a certain water pressure. Under the action of water pressure, the inner wall of the hydraulic locking chamber is tightly attached to the outer wall of the water injection pipe of the carriage, and together with the electromagnetic locking device, it prevents water leakage during the water filling process. When the water pressure in the hydraulic locking chamber reaches a certain value, under the sealing action of the locking unit, the water flows through the locking unit to the water injection pipe of the carriage, and the water filling process begins.

[0016] S3. Water Filling Control: During the water filling process, the control unit obtains the water filling status by reading data from the pressure sensor and flow sensor. When the water is full, the water pressure will gradually increase. If the pressure value reaches the threshold, it means that the water is full. Then the control unit controls the water filling well control valve to close and stop water filling. After the water filling well control valve is closed, the water in the water supply pipe flows back under natural water pressure and flows out through the drain port of the water filling well control valve to prevent residual water in the water supply pipe. The termination of the water filling process can also be controlled by the flow sensor. When the flow sensor counts a certain amount of water added, the control unit controls the water filling well control valve to close.

[0017] S4. Loosening after adding water: After closing the water injection well control valve, the control unit controls the electromagnetic locking device to loosen, and air enters through the gap in the inner wall of the locking unit. At the same time, as the water pressure in the hydraulic locking chamber decreases, the pressure between the hydraulic locking chamber and the water injection pipe wall of the carriage decreases, and finally loosening occurs. The train water connector device is disconnected from the water injection pipe of the carriage, and the water adding process ends.

[0018] Furthermore, in step S1, the water filling process is controlled under the control of the trigger switch to form an independent working mode. When the start water filling button of the trigger switch is pressed, the control unit realizes the water filling process control under the control of the trigger switch.

[0019] Furthermore, in step S1, the water addition process is controlled under the control of the host computer control interface, forming a linkage control mode. The control unit receives the control signal of the water addition process through the host computer control interface.

[0020] Advantages of this invention:

[0021] 1. The device of this invention achieves double locking through an electromagnetic locking device and a hydraulic locking chamber in the locking unit. During water filling, the electromagnetic locking device locks under the control of the control unit. Simultaneously, the water flows through the flow limiter, filling the hydraulic locking chamber with water and maintaining a high pressure state, thus ensuring that the water filling connector adheres to the train's water pipe, maintaining a sealed and locked state. After the water filling operation is completed, the control unit receives a command and controls the electromagnetic locking device to de-energize and release; at the same time, the water pressure in the water pipe drops, and the hydraulic locking chamber automatically releases due to the lack of water pressure, causing the water filling device to automatically detach, completing the water filling operation. The double locking prevents significant water waste caused by the operator's inability to handle the situation promptly after the water filling pipe becomes loose during the water filling process.

[0022] 2. Water Injection Status and Flow Rate Detection: The control unit receives control commands from the host computer. When the device is aligned with the water inlet pipe and water injection begins, the water injection unit is enabled to lock the water inlet connector. The water pressure sensor detects the water injection status. Upon completion of water injection, the flow sensor readings the result, and the water volume is statistically analyzed and fed back to the host computer. In independent operating mode, the control unit monitors the water injection process in real time using both the water pressure and flow sensors. When the pressure exceeds the set value or the water volume reaches the set amount, water injection is immediately stopped. This achieves automatic water injection process control even without supervision.

[0023] 3. The control unit can operate independently or be linked with a host computer for control. When operating independently, upon receiving a water injection trigger switch command, the control unit controls the locking unit to lock, initiating water injection. Once water injection is complete (water pressure or flow rate reaches a threshold), the locking unit automatically disengages. When linked with a host computer, the control unit receives commands from the host computer and can provide real-time feedback on water injection status and volume, enabling linked process control modes and achieving synchronous and flexible control during automatic water filling. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the flow sensor in this invention;

[0026] Figure 3 This is a schematic diagram of the pressure sensor in this invention;

[0027] In the diagram: 1. Locking unit; 1-1. Electromagnetic locking device; 1-2. Hydraulic locking chamber; 1-3. Flow limiter;

[0028] 2. Sensor Unit; 2-1: Flow Sensor; 2-2: Pressure Sensor;

[0029] 3. Control unit;

[0030] 4. Water supply pipe;

[0031] 5. Trigger the switch;

[0032] 6. Host computer communication interface;

[0033] 7. Water injection well control valve. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0035] like Figure 1As shown, a train water supply connector device is characterized by comprising a locking unit 1, a sensor unit 2, a control unit 3, a water supply pipe 4, a trigger switch 5, a host computer communication interface 6, and a water injection well control valve 7. The locking unit 1 is positioned above the sensor unit 2 and is used to seal the train water supply connector device to the carriage water injection pipe during train water supply. The control unit 3 is connected to the locking unit 1, sensor unit 2, trigger switch 5, host computer communication interface 6, and water injection well control valve 7. The control unit 3 is used for controlling the train water supply process and has both independent and linked operating modes. The water supply pipe 4 is located at the bottom of the sensor unit 2 and is used to supply water from the water injection well to the train water supply connector device. The trigger switch 5 is used to activate the control unit 3 to control the water supply process, including normal water supply procedures or emergency stops in abnormal situations. The host computer communication interface 6 is used to receive control commands from the host computer in the linked mode.

[0036] In a preferred embodiment of the present invention, the locking unit 1 includes an electromagnetic locking device 1-1, a hydraulic locking chamber 1-2, and a flow limiter 1-3. The electromagnetic locking device 1-1 is sleeved on the top of the locking unit 1, and the center of the electromagnetic locking device 1-1 is a water inlet. The locking unit 1 has an inverted frustum inside, and the cavity between the outer wall of the frustum and the inner wall of the locking unit 1 is the hydraulic locking chamber 1-2. The flow limiter 1-3 is provided at the bottom of the inverted frustum. The locking unit 1 is connected to the control unit 3 through the electromagnetic locking device 1-1.

[0037] As a preferred embodiment of the present invention, such as Figures 1-3 As shown, the sensor unit 2 includes a flow sensor 2-1, a pressure sensor 2-2, and a water pipe connector. The top outer wall of the water pipe connector is connected to the bottom inner wall of the locking unit 1. The bottom outer wall of the water pipe connector is fitted with an inlet water pipe 4. The flow sensor 2-1 and the pressure sensor 2-2 are respectively installed on both sides of the middle part of the water pipe connector. The sensor unit 2 is connected to the control unit 3 through the flow sensor 2-1 and the pressure sensor 2-2. The flow sensor 2-1 and the pressure sensor 2-2 are used to detect water pressure and flow rate, providing water filling status information to the control unit 3.

[0038] In a preferred embodiment of the present invention, the trigger switch 5 is provided with a start water filling button, a stop water filling button, an emergency stop button and a quick release button. The water injection well control valve 7 includes a water inlet and a water outlet. The water inlet is connected to the water inlet pipe 4. When the water injection well control valve 7 is closed, the water in the water inlet pipe 4 can flow out through the water outlet.

[0039] In a preferred embodiment of the present invention, the top of the water pipe connector is connected to the locking unit 1 by corrugation or buckle, and the bottom of the water pipe connector is connected to the water supply pipe 4 by corrugation or buckle.

[0040] In a preferred embodiment of the present invention, the control unit 3 can start / stop the water filling process by triggering the start / stop water filling button of the trigger switch 5. After receiving the start / stop signal, the control unit 3 locks / releases the water inlet of the locking unit 1 through the electromagnetic locking device 1-1, and controls the water filling process by opening / closing the water filling well control valve 7. In case of emergency, pressing the quick release button of the trigger switch 5 will activate the quick release control process of the control unit 3, release the electromagnetic locking device 1-1, and close the water filling well control valve 7, so that the train water supply connector device can be quickly detached from the car water filling pipe.

[0041] In a preferred embodiment of the present invention, the control unit 3 can receive control commands from the host computer through the host computer communication interface 6 to start / stop the water filling process. In case of emergency, the control unit 3 can quickly release the electromagnetic locking device 1-1 under the control of the host computer by pressing the quick release button of the trigger switch 5 or by quickly releasing the electromagnetic locking device 1-1 and closing the water injection well control valve 7, so that the train water supply connector device can be quickly detached from the car water injection pipe.

[0042] When the train's water inlet connector is aligned with the car's water inlet pipe and is in the water inlet state, the control unit 3 enables the electromagnetic locking device 1-1 to lock the car's water inlet pipe and detects the water inlet status through the pressure sensor 2-2. When the water inlet is complete, the control unit reads the result from the flow sensor 2-1, counts the water inlet volume, and feeds back the water inlet volume to the host computer through the host computer communication interface 6.

[0043] When the train's water supply connector is filling with water, the electromagnetic locking device 1-1 locks under the control of the control unit 3. Simultaneously, the hydraulic locking chamber 1-2 maintains a high pressure due to water pressure, thus ensuring that the locking unit 1 adheres to the outside of the car's water supply pipe, maintaining a sealed and locked state. After water filling is complete, the water pressure in the water supply pipe 4 drops, and the hydraulic locking chamber 1-2 automatically releases due to the lack of water pressure. At the same time, upon receiving a command, the control unit 3 de-energizes the electromagnetic locking device 1-1, causing it to release automatically, and the train's water supply connector automatically detaches, completing the water filling operation.

[0044] During the water injection process, pressure sensor 2-2 detects the water pressure in hydraulic locking chamber 1-2. When the water pressure reaches the standard, the hydraulic locking is reliable. When the train water tank reaches the full water level, control unit 3 stops water injection by detecting this state. Alternatively, the water injection volume can be controlled by flow sensor 2-1 under the action of control unit 3. Or, both can work together to control the water injection state.

[0045] The control unit 3 can operate independently or be linked with a host computer via the communication interface 6. When operating independently, upon receiving a command from the trigger switch 5, the control unit 3 controls the locking unit 1 to lock, initiating water injection. Once water injection is complete (when water pressure or flow reaches a threshold), the locking unit automatically disengages. When linked with a host computer, the control unit accepts commands from the host computer and can provide real-time feedback on the water injection status and volume, enabling linked process control modes.

[0046] A method for using a train water supply connector includes the following steps:

[0047] S1. Water Injection Preparation: Place the locking unit 1 on the outer wall of the water injection pipe in the carriage, press the start water injection button of the trigger switch 5, and after the control unit 3 receives the start control signal, it first outputs a control signal to lock the electromagnetic locking device 1-1, and then controls the water injection well control valve 7 to open. After the water flows through the water inlet of the water injection well control valve 7, it flows through the water inlet pipe 4 and then through the sensor unit 2 and the locking unit 1.

[0048] S2. Locking and sealing before water filling: When water begins to flow, as water flows through the flow limiter 1-3 of the locking unit 1, the water first fills the hydraulic locking chamber 1-2 under the diversion action of the flow limiter 1-3, forming a certain water pressure. Under the action of water pressure, the inner wall of the hydraulic locking chamber 1-2 is tightly attached to the outer wall of the water injection pipe of the carriage, and together with the electromagnetic locking device 1-1, it prevents water leakage during the water filling process. When the water pressure in the hydraulic locking chamber 1-2 reaches a certain value, under the sealing action of the locking unit 1, the water flows through the locking unit 1 to the water injection pipe of the carriage, and the water filling process begins.

[0049] S3. Water Addition Control: During the water addition process, the control unit 3 obtains the water addition status by reading the data from the pressure sensor 2-2 and the flow sensor 2-1. When the water is full, the water pressure will gradually increase. If the pressure value reaches the threshold, it means that the water is full. Then the control unit 3 controls the valve of the water injection well control valve 7 to close and stop water addition. After the water injection well control valve 7 is closed, the water in the water supply pipe 4 flows back under natural water pressure and flows out through the drain of the water injection well control valve 7 to prevent residual water in the water supply pipe 4. The termination of the water addition process can also be controlled by the flow sensor 2-1. When the flow sensor 2-1 counts a certain amount of water added, the control unit 3 controls the water injection well control valve 7 to close.

[0050] S4. Loosening after adding water: After closing the water injection well control valve 7, the control unit 3 controls the electromagnetic locking device 1-1 to loosen, and air enters through the gap in the inner wall of the locking unit 1. At the same time, as the water pressure in the hydraulic locking chamber 1-2 decreases, the pressure between the hydraulic locking chamber 1-2 and the water injection pipe wall of the carriage decreases, and finally loosens, the train water connector device is separated from the water injection pipe of the carriage, and the water adding process ends.

[0051] In a preferred embodiment of the present invention, in step S1, the water filling process is controlled under the control of the trigger switch 5 to form an independent working mode. When the start water filling button of the trigger switch 5 is pressed, the control unit 3 realizes the water filling process control under the control of the trigger switch 5.

[0052] In a preferred embodiment of the present invention, in step S1, the water addition process is controlled by the host computer control interface 6 to form a linkage control mode, and the control unit 3 receives the control signal of the water addition process through the host computer control interface 6.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art can still adjust the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Therefore, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. A train water supply connector device, characterized in that: The system includes a locking unit (1), a sensor unit (2), a control unit (3), a water supply pipe (4), a trigger switch (5), a host computer communication interface (6), and a water injection well control valve (7). The locking unit (1) is located above the sensor unit (2) and is used to seal the connection between the train water supply connector and the car water injection pipe when the train is filled with water. The control unit (3) is connected to the locking unit (1), the sensor unit (2), the trigger switch (5), the host computer communication interface (6), and the water injection well control valve (7). The control unit (3) is used to control the train water supply process and has two working modes: independent and linkage. The water supply pipe (4) is located at the bottom of the sensor unit (2) and is used to supply water from the water injection well to the train water supply connector. The trigger switch (5) is used to start the control unit (3) to control the water supply process, including the normal water supply process or emergency stop under abnormal conditions. The host computer communication interface (6) is used to receive control commands from the host computer in the linkage mode.

2. The train water inlet connector device according to claim 1, characterized in that: The locking unit (1) includes an electromagnetic locking device (1-1), a hydraulic locking chamber (1-2), and a flow limiter (1-3). The electromagnetic locking device (1-1) is sleeved on the top of the locking unit (1). The center of the electromagnetic locking device (1-1) is a water inlet. The locking unit (1) has an inverted frustum inside. The cavity between the outer wall of the frustum and the inner wall of the locking unit (1) is the hydraulic locking chamber (1-2). The flow limiter (1-3) is provided at the bottom of the inverted frustum. The locking unit (1) is connected to the control unit (3) through the electromagnetic locking device (1-1).

3. A train water inlet connector device according to claim 2, characterized in that: The sensor unit (2) includes a flow sensor (2-1), a pressure sensor (2-2), and a water pipe connector. The top outer wall of the water pipe connector is connected to the bottom inner wall of the locking unit (1). The bottom outer wall of the water pipe connector is fitted with a water inlet pipe (4). The flow sensor (2-1) and the pressure sensor (2-2) are respectively installed on both sides of the middle part of the water pipe connector. The sensor unit (2) is connected to the control unit (3) through the flow sensor (2-1) and the pressure sensor (2-2). The flow sensor (2-1) and the pressure sensor (2-2) are used to detect water pressure and flow rate, and provide water filling status information to the control unit (3).

4. A train water inlet connector device according to claim 3, characterized in that: The trigger switch (5) is equipped with a start water filling button, a stop water filling button, an emergency stop button and a quick release button. The water injection well control valve (7) includes a water inlet and a water outlet. The water inlet is connected to the water supply pipe (4). When the water injection well control valve (7) is closed, the water in the water supply pipe (4) can flow out through the water outlet.

5. A train water inlet connector device according to claim 4, characterized in that: The top of the water pipe connector is connected to the locking unit (1) in a corrugated or snap-fit ​​manner, and the bottom of the water pipe connector is connected to the water supply pipe (4) in a corrugated or snap-fit ​​manner.

6. A train water inlet connector device according to claim 5, characterized in that: The control unit (3) can start / stop the water filling process by triggering the start / stop water filling button of the trigger switch (5). After receiving the start / stop signal, the control unit (3) locks / releases the water inlet of the locking unit (1) through the electromagnetic locking device (1-1) and controls the water filling process by opening / closing the water filling well control valve (7). In case of emergency, press the quick release button of the trigger switch (5), and the control unit (3) will start the quick release control process, release the electromagnetic locking device (1-1), close the water filling well control valve (7), so that the train water supply connector can be quickly detached from the car water filling pipe.

7. A train water inlet connector device according to claim 5, characterized in that: The control unit (3) can receive control commands from the host computer through the host computer communication interface (6) to start / stop the water filling process. In case of emergency, press the quick release button of the trigger switch (5) or release the electromagnetic lock (1-1) quickly under the control of the host computer and close the water injection well control valve (7) so that the train water supply connector can be quickly detached from the car water injection pipe.

8. A method of using a train water supply connector device, characterized in that, Includes the following steps: S1. Water injection preparation: Place the locking unit (1) on the outer wall of the water injection pipe in the carriage, press the start water injection button of the trigger switch (5), and after the control unit (3) receives the start control signal, it first outputs the control signal to put the electromagnetic locking device (1-1) in the locking state, and then controls the water injection well control valve (7) to open. After the water flows through the water inlet of the water injection well control valve (7), it flows through the water inlet pipe (4) and the sensor unit (2) and the locking unit (1). S2. Locking and sealing before water filling: When water filling begins, the water flows through the flow limiter (1-3) of the locking unit (1). Under the diversion action of the flow limiter (1-3), the water first fills the hydraulic locking chamber (1-2) and forms a certain water pressure. Under the action of water pressure, the inner wall of the hydraulic locking chamber (1-2) is tightly attached to the outer wall of the water filling pipe of the carriage. Together with the electromagnetic locking device (1-1), it prevents water leakage during the water filling process. When the water pressure in the hydraulic locking chamber (1-2) reaches a certain value, under the sealing action of the locking unit (1), the water flows through the locking unit (1) to the water filling pipe of the carriage, and the water filling process begins. S3. Water filling control: During the water filling process, the control unit (3) obtains the water filling status by reading the data of the pressure sensor (2-2) and the flow sensor (2-1). When the water is full, the water pressure will gradually increase. If the pressure value reaches the threshold, it means that the water is full. Then the control unit (3) controls the valve of the water filling well control valve (7) to close and stop water filling. After the water filling well control valve (7) is closed, the water in the water supply pipe (4) flows back under natural water pressure and flows out through the drain of the water filling well control valve (7) to prevent residual water in the water supply pipe (4). The termination of the water filling process can also be controlled according to the flow sensor (2-1). When the flow sensor (2-1) counts a certain amount of water added, the control unit (3) controls the water filling well control valve (7) to close. S4. Loosening after adding water: After closing the water injection well control valve (7), the control unit (3) controls the electromagnetic locking device (1-1) to loosen, and air enters through the gap in the inner wall of the locking unit (1). At the same time, as the water pressure in the hydraulic locking chamber (1-2) decreases, the pressure between the hydraulic locking chamber (1-2) and the water injection pipe wall of the carriage decreases, and finally loosens, the train water connector device is separated from the water injection pipe of the carriage, and the water adding process ends.

9. The method of using a train water inlet connector device according to claim 8, characterized in that: In step S1, the water filling process is controlled under the control of the trigger switch (5) to form an independent working mode. Press the start water filling button of the trigger switch (5), and the control unit (3) realizes the water filling process control under the control of the trigger switch (5).

10. The method of using a train water inlet connector device according to claim 8, characterized in that: In step S1, the water addition process is controlled by the host computer control interface (6) to form a linkage control mode. The control unit (3) receives the control signal of the water addition process through the host computer control interface (6).

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