Automatic water injection device for high-speed rail train

By designing an automatic water injection device, using a camera and lead screw system to adjust the position of the water injection pipe, and combining the automatic control of solenoid valves and water pumps, the problem of low efficiency in manual water injection on high-speed trains has been solved, and efficient automated water injection operation has been achieved.

CN223835598UActive Publication Date: 2026-01-27HEBEI NORMAL UNIV
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Patent Information

Application Number
CN202520659992.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-01-27
Estimated Expiration
2035-04-09

AI Technical Summary

Technical Problem

Manual water injection on high-speed trains is inefficient, making it difficult to complete the water injection operation within the limited stopping time, which affects train schedules.

Method used

The design incorporates an automatic water injection device that uses a camera to identify the water injection location. The position of the water injection pipe is adjusted via a horizontal sliding screw and a drive screw. Combined with a solenoid valve and a water pump, automatic water injection is achieved. A push-button switch and a feedback switch are used to collaboratively trigger and control the opening and closing of the water pump and solenoid valve, thus realizing automated water injection.

Benefits of technology

This improves water injection efficiency, ensures that the water injection pipe can be quickly and accurately aligned with the water injection position, achieves automated operation, and enhances the water injection capacity of high-speed trains during short stops.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of train water injection, and discloses an automatic water injection device for a high-speed train, which comprises an automatic water injection mechanism and a water injection mechanism, the adjusting assembly comprises a base, a movable frame is arranged above the base, a bottom groove is formed in the upper surface of the base, a driving lead screw is installed in the bottom groove, and a main sliding block which can slide along the bottom groove to drive the movable frame to move and adjust the position is in threaded connection with the driving lead screw. The adjusting assembly recognizes the water injection position through the camera and drives the water injection pipe to transversely align to and enter a water injection point through operation of the transverse moving lead screw and the driving lead screw, train stopping position deviation is adapted, and efficiency is improved. After the flow reaches the standard, the controller stops the water pump, automatic water injection is achieved, and the problem that manual water injection is low in efficiency is solved.
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Description

Technical Field

[0001] This utility model belongs to the field of train water injection technology, and specifically relates to an automatic water injection device for high-speed trains. Background Technology

[0002] High-speed rail, as a mainstay of modern transportation, has become the preferred mode of travel due to its high speed, punctuality, and comfort. During operation, high-speed trains require regular refilling of their water tanks to meet passengers' needs for washing, drinking, and toilet flushing.

[0003] However, the current method of water injection on high-speed trains remains relatively traditional, typically relying on manual pulling of the water injection pipe. Manually pulling the pipe is a time-consuming and labor-intensive process. Workers must first drag the heavy pipe from its storage location and then connect it to the train's water inlet. After injection, the process must be reversed to retract the pipe. The entire procedure is cumbersome, and considering the extremely tight timetables of high-speed trains and the limited time spent at stations (generally only a few minutes to a dozen minutes), the inefficiency of manual water injection is further amplified. Completing the water injection within such a short stop undoubtedly puts immense pressure on the staff. Failure to complete the water injection on time could lead to train delays, affecting subsequent train operations.

[0004] To address the above problems, this application proposes an automatic water injection device for high-speed trains. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an automatic water injection device for high-speed trains. This device utilizes an automatic water injection mechanism. An adjustment component uses a camera to identify the water injection position, and a lateral sliding screw and drive screw operate to align the water injection pipe laterally and insert it into the injection point, adapting to deviations in train stopping positions and improving efficiency. Once the water injection pipe is inserted into the inlet pipe, a docking and feedback switch is triggered, opening the solenoid valve and starting the water pump for automatic water injection. After the flow rate reaches the target, the controller shuts off the water pump, achieving automated water injection and solving the problems mentioned in the background technology.

[0006] To achieve the above objectives, this application specifically adopts the following technical solution:

[0007] An automatic water injection device for high-speed trains includes: an automatic water injection mechanism, comprising an adjustment component and a water injection component; the adjustment component includes a base, a movable frame mounted on top of the base, a groove formed on the upper surface of the base, a drive screw installed in the groove, a main slider threadedly connected to the drive screw and capable of sliding along the groove to move the movable frame to adjust its position, a top cross frame mounted on the front side of the movable frame, and a transverse sliding screw mounted inside the top cross frame, a linkage slider threadedly connected to the transverse sliding screw and capable of sliding along the inner side of the top cross frame; the water injection component... The system includes a water injection pipe for filling the water tank of a high-speed train. One side of the water injection pipe is equipped with a solenoid valve for connecting to the train's water tank. A water inlet pipe is installed at the front end of the solenoid valve. A docking switch is located on the outside of the water inlet pipe. An outer sleeve is installed on the outside of the water injection pipe, and a feedback switch is installed in front of the outer sleeve. A water pump is located on one side of the moving frame. When the docking switch and the feedback switch come into contact, the solenoid valve opens and the water pump starts, enabling automatic water filling of the train's water tank. A camera is located above the water injection pipe for identifying the water filling location on the train.

[0008] In a preferred embodiment, a No. 1 motor is installed on one side of the base, and the output shaft of the No. 1 motor is fixedly connected to the drive screw. A set of auxiliary sliding grooves are opened on both sides of the upper surface of the base. An auxiliary slider is slidably connected in the auxiliary sliding groove, and the auxiliary slider and the main slider are respectively fixedly connected to the bottom of the moving frame.

[0009] In a preferred embodiment, a second motor is installed on one side of the top horizontal frame, and the output shaft of the second motor is fixedly connected to the horizontal sliding screw. The linkage slider has a T-shaped structure, and the water injection pipe is fixed in front of the linkage slider.

[0010] In a preferred embodiment, a linkage plate is installed below the water pump, and the linkage plate is fixedly connected to the movable frame. The water pump has a built-in flow sensor and is connected to the water injection pipe through a transmission pipe.

[0011] In a preferred embodiment, a top rod is installed above the mobile frame, and the camera is installed on the side of the top rod near the water injection pipe.

[0012] In a preferred embodiment, a docking ring is installed on the outside of the water inlet pipe, and a docking switch is installed on one side of the docking ring. Both the docking switch and the feedback switch are ring structures and are push-button switches. The docking switch is electrically connected to the solenoid valve.

[0013] In a preferred embodiment, a controller is installed on one side of the mobile frame. The controller is electrically connected to the water pump, camera, feedback switch, motor 1, and motor 2. The controller 2 is connected to an external image recognition system.

[0014] After adopting the above technical solution, the beneficial effects of this utility model are:

[0015] 1. To address the low efficiency of manual water injection on high-speed trains, an adjustment component was designed. When a high-speed train stops at a platform and the water injection operation begins, a camera identifies the water injection location on the train. Once the target is locked, the lateral sliding screw starts operating, driving the linkage slider to move laterally, aligning the water injection pipe with the designated water injection location on the train. After the water injection pipe is properly aligned, the drive screw then operates, pushing the moving frame forward via the main slider, allowing the water injection pipe to enter the water injection position on the train. Since the water injection location may vary slightly each time a high-speed train stops at a platform, the coordinated operation of real-time camera identification and adjustment ensures that the water injection pipe can be quickly and accurately aligned with the water injection location, improving water injection efficiency and effectively guaranteeing that the high-speed train can complete the water injection operation within a short stop time.

[0016] 2. To improve the efficiency and automation of water tank filling in high-speed trains, a water filling component was designed. A solenoid valve is installed at the water tank inlet. After the train stops, when the water filling pipe is pushed into the inlet pipe, the docking switch and feedback switch contact each other under pressure, opening the solenoid valve and starting the water pump to automatically fill the tank. During filling, a flow sensor detects the outflow rate. When the flow rate reaches a threshold, the controller shuts off the pump. By utilizing the coordinated triggering mechanism of the push-button docking switch and feedback switch, the originally cumbersome manual water filling process is transformed into an automated operation, effectively overcoming the problem of low efficiency in manual water filling. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an automatic water injection device for high-speed trains according to the present invention;

[0019] Figure 2 This is a structural schematic diagram of an automatic water injection device for high-speed trains from another perspective.

[0020] Figure 3 This is a schematic diagram of the structure of an automatic water injection device for high-speed trains from the rear view.

[0021] Figure 4 This is a schematic diagram of the rear cross-section of an automatic water injection device for high-speed trains according to the present invention;

[0022] Figure 5 for Figure 2 A magnified structural diagram of part A.

[0023] In the diagram: 1. Adjustment component; 11. Base; 12. Bottom groove; 13. Motor No. 1; 14. Auxiliary slide rail; 15. Moving frame; 16. Drive screw; 17. Main slider; 18. Auxiliary slider; 19. Top horizontal frame; 110. Motor No. 2; 111. Horizontal sliding screw; 112. Linkage slider; 2. Water injection component; 21. Linkage plate; 22. Water pump; 23. Water injection pipe; 24. Solenoid valve; 25. Water inlet pipe; 26. Connecting ring; 27. Connecting switch; 28. Outer sleeve; 29. ​​Top rod; 210. Camera; 211. Controller; 212. Feedback switch. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 5 As shown: An automatic water injection device for high-speed trains includes: an automatic water injection mechanism, including an adjustment component 1 and a water injection component 2; the adjustment component 1 includes a base 11, a movable frame 15 above the base 11, a bottom groove 12 formed on the upper surface of the base 11, a drive screw 16 installed in the bottom groove 12, a main slider 17 threadedly connected to the drive screw 16, which can slide along the bottom groove 12 to move the movable frame 15 to adjust its position, a top horizontal frame 19 installed on the front side above the movable frame 15, and a transverse sliding screw 111 installed in the top horizontal frame 19, a linkage slider 112 threadedly connected to the transverse sliding screw 111, which can slide along the inner side of the top horizontal frame 19; water injection. Component 2 includes a water injection pipe 23 for filling the water tank of the high-speed train. A solenoid valve 24 for connecting to the train's water tank is provided on one side of the water injection pipe 23. A water inlet pipe 25 is installed at the front end of the solenoid valve 24. A docking switch 27 is provided on the outside of the water inlet pipe 25. An outer sleeve 28 is installed on the outside of the water injection pipe 23. A feedback switch 212 is installed in front of the outer sleeve 28. A water pump 22 is provided on one side of the moving frame 15. When the docking switch 27 and the feedback switch 212 touch, the solenoid valve 24 can be opened and the water pump 22 can be started to realize automatic water filling of the train's water tank. A camera 210 for identifying the water filling part of the train is provided above the water injection pipe 23.

[0026] like Figures 1 to 4As shown: A motor 13 is installed on one side of the base 11, and the output shaft of the motor 13 is fixedly connected to the drive screw 16. A set of auxiliary sliding grooves 14 are provided on both sides of the upper surface of the base 11. An auxiliary slider 18 is slidably connected in the auxiliary sliding groove 14. The auxiliary slider 18 and the main slider 17 are respectively fixedly connected to the bottom of the moving frame 15. When the moving frame 15 moves, it can synchronously drive the auxiliary slider 18 to slide along the path of the auxiliary sliding groove 14, providing stable guidance for the moving frame 15.

[0027] like Figures 1 to 5 As shown: A second motor 110 is installed on one side of the top horizontal frame 19, and the output shaft of the second motor 110 is fixedly connected to the horizontal sliding screw 111. The linkage slider 112 has a T-shaped structure, and the water injection pipe 23 is fixed in front of the linkage slider 112.

[0028] like Figures 1 to 2 As shown: A linkage plate 21 is installed below the water pump 22, and the linkage plate 21 is fixedly connected to the moving frame 15. The water pump 22 has a built-in flow sensor and is connected to the water injection pipe 23 through a transmission pipe. When the moving frame 15 moves, the water pump 22 can be driven to move synchronously through the linkage plate 21.

[0029] like Figures 1 to 2 As shown: A top rod 29 is installed above the mobile frame 15, and a camera 210 is installed on the side of the top rod 29 near the water injection pipe 23.

[0030] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown: A docking ring 26 is installed on the outside of the water inlet pipe 25, and a docking switch 27 is installed on one side of the docking ring 26. Both the docking switch 27 and the feedback switch 212 are ring structures and are push-button switches. The docking switch 27 is electrically connected to the solenoid valve 24.

[0031] like Figures 1 to 2 As shown: A controller 211 is installed on one side of the mobile frame 15. The controller 211 is electrically connected to the water pump 22, camera 210, feedback switch 212, motor 13 and motor 110. The controller 211 is also connected to an external image recognition system.

[0032] In practical use, the working principle of this utility model is as follows:

[0033] When the high-speed train stops at the platform, camera 210 captures an image of the train's side and transmits the image information to controller 211. After receiving the information, controller 211 compares it with pre-stored feature data of the train's water injection points in the image recognition system to determine the actual location of the water injection points. Upon successful recognition, the image recognition system immediately sends a movement command signal to controller 211. Upon receiving the signal, controller 211 drives motor 110. Motor 110 drives the transverse lead screw 111 to rotate synchronously, causing the linkage slider 112 to slide along the inner side of the top transverse frame 19. The movement of the linkage slider 112 causes the water injection pipe 23 to move laterally, aligning it with the position of the train's water injection port. After completing the horizontal positioning, controller 211 issues another command to start motor 13. The output shaft of motor 13 drives the drive lead screw 16 to rotate, and the main slider 17, threadedly connected to the drive lead screw 16, slides forward along the bottom groove 12, causing the moving frame 15 to slide forward. The movable frame 15 synchronously drives the auxiliary slider 18 to slide along the path of the auxiliary slide groove 14, providing stable guidance for the movable frame 15. Under the coordinated action of the main slider 17 and the auxiliary slider 18, the movable frame 15 pushes the water injection pipe 23 into the water inlet pipe 25.

[0034] As the water injection pipe 23 is gradually inserted into the inlet pipe 25, the outer sleeve 28 of the water injection pipe 23 moves forward synchronously, causing the feedback switch 212 fixed in front of the outer sleeve 28 to move towards the docking switch 27 on the docking ring 26 outside the inlet pipe 25. As the water injection pipe 23 continues to penetrate deeper, the outer sleeve 28 covers the outside of the inlet pipe 25, and the docking switch 27 and the feedback switch 212 come into contact with each other. At this time, the docking switch 27 and the feedback switch 212 are triggered simultaneously, and the feedback switch 212 quickly feeds back the signal to the controller 211. The controller 211 starts the water pump 22. At the same time, the docking switch 27 sends an opening command to the solenoid valve 24, which responds quickly and opens the valve to create a passage for water to enter the train water tank. The high-precision flow sensor built into the water pump 22 then starts working to monitor the water flow in real time. Water pump 22 continuously pumps external water into water injection pipe 23 through transmission pipe. The water flows through water injection pipe 23 and water inlet pipe 25, smoothly enters the opened solenoid valve 24, and finally injects into the train water tank to realize automatic water injection.

[0035] During the water injection process, the flow sensor continuously transmits the monitored flow data to the controller 211. When the flow reaches a preset threshold, the controller 211 immediately issues a command to stop the water pump 22, thus terminating the water injection. Immediately afterwards, the controller 211 controls the first motor 13 to reverse, driving the lead screw 16 to rotate in the opposite direction, causing the main slider 17 to slide backward along the bottom groove 12, gradually disengaging the moving frame 15 and the connected water injection pipe 23 from the inlet pipe 25. Once the water injection pipe 23 is completely disengaged from the inlet pipe 25, the docking switch 27 is no longer under pressure and automatically resets, the solenoid valve 24 closes, and the entire automatic water injection operation is completed.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic water injection device for high-speed trains, characterized in that, include: An automatic water injection mechanism includes an adjustment component (1) and a water injection component (2); The adjustment assembly (1) includes a base (11), a movable frame (15) is provided above the base (11), a bottom groove (12) is provided on the upper surface of the base (11), a drive screw (16) is installed in the bottom groove (12), a main slider (17) is threadedly connected to the drive screw (16) and can slide along the bottom groove (12) to move the movable frame (15) to adjust its position, a top horizontal frame (19) is installed on the front side above the movable frame (15), and a transverse sliding screw (111) is installed in the top horizontal frame (19), a linkage slider (112) is threadedly connected to the transverse sliding screw (111) and can slide along the inner side of the top horizontal frame (19); The water injection assembly (2) includes a water injection pipe (23) for injecting water into the water tank of the high-speed train. A solenoid valve (24) for connecting to the train water tank is provided on one side of the water injection pipe (23). A water inlet pipe (25) is installed at the front end of the solenoid valve (24). A docking switch (27) is provided on the outside of the water inlet pipe (25). An outer sleeve (28) is installed on the outside of the water injection pipe (23). A feedback switch (212) is installed in front of the outer sleeve (28). A water pump (22) is provided on one side of the moving frame (15). When the docking switch (27) and the feedback switch (212) touch, the solenoid valve (24) can be opened and the water pump (22) can be started to realize automatic water injection into the train water tank. A camera (210) for identifying the water injection part of the train is provided above the water injection pipe (23).

2. The automatic water injection device for high-speed trains as described in claim 1, characterized in that: A No. 1 motor (13) is installed on one side of the base (11), and the output shaft of the No. 1 motor (13) is fixedly connected to the drive screw (16). A set of auxiliary sliding grooves (14) are opened on both sides of the upper surface of the base (11). An auxiliary slider (18) is slidably connected in the auxiliary sliding groove (14), and the auxiliary slider (18) and the main slider (17) are fixedly connected to the bottom of the moving frame (15) respectively.

3. The automatic water injection device for high-speed trains as described in claim 2, characterized in that: A second motor (110) is installed on one side of the top horizontal frame (19), and the output shaft of the second motor (110) is fixedly connected to the transverse lead screw (111). The linkage slider (112) has a T-shaped structure, and the water injection pipe (23) is fixed in front of the linkage slider (112).

4. The automatic water injection device for high-speed trains as described in claim 3, characterized in that: A linkage plate (21) is installed below the water pump (22), and the linkage plate (21) is fixedly connected to the moving frame (15). The water pump (22) has a built-in flow sensor, and the water pump (22) is connected to the water injection pipe (23) through the transmission pipe.

5. The automatic water injection device for high-speed trains as described in claim 4, characterized in that: A top rod (29) is installed above the mobile frame (15), and a camera (210) is installed on the side of the top rod (29) near the water injection pipe (23).

6. The automatic water injection device for high-speed trains as described in claim 5, characterized in that: A docking ring (26) is installed on the outside of the water inlet pipe (25), and a docking switch (27) is installed on one side of the docking ring (26). The docking switch (27) and the feedback switch (212) are both ring structures and are both push-button switches. The docking switch (27) is electrically connected to the solenoid valve (24).

7. The automatic water injection device for high-speed trains as described in claim 1, characterized in that: A controller (211) is installed on one side of the mobile frame (15). The controller (211) is electrically connected to the water pump (22), camera (210), feedback switch (212), motor 1 (13), and motor 2 (110).