A sweeping device for the undercarriage of rail transit vehicles

Abstract

This utility model belongs to the field of rail transit vehicle maintenance, and particularly relates to a rail transit vehicle undercarriage cleaning device. It includes a cleaning robot, a centrifugal fan, a discharge pipe, a telescopic pipe, a dust collection hood, an electric push rod, and a connecting plate. The centrifugal fan is installed inside the cleaning robot, the discharge pipe is installed on the outlet end of the centrifugal fan, the telescopic pipe is installed on the suction end of the centrifugal fan, the dust collection hood is threaded onto the end of the telescopic pipe, and the electric push rod is installed on the left side of the cleaning robot. Its telescopic rod extends vertically downwards and is equipped with a connecting plate. By setting up a collection system consisting of a centrifugal fan, discharge pipe, telescopic pipe, dust collection hood, collection plate, scraper, and collection frame, it can operate synchronously with the cleaning robot during operation, effectively collecting hard particles that fall during the cleaning process, preventing them from scattering on the ground, significantly reducing workshop pollution, alleviating the burden of manual cleaning, and improving the level of automation.

Description

Technical Field

[0001] This utility model belongs to the field of rail transit vehicle maintenance, and in particular relates to a rail transit vehicle undercarriage cleaning device. Background Technology

[0002] With the continuous expansion of rail transit networks, train operation safety and maintenance have received increasing attention. During long-term operation, rail transit vehicles easily accumulate dust, sand, oil, and various debris under the vehicles, affecting not only their cleanliness but also potentially damaging critical components such as bogies and braking systems. Therefore, regularly cleaning the undercarriage has become an important part of daily maintenance to ensure vehicles are in good technical condition and guarantee operational safety and efficiency.

[0003] Currently, the cleaning of the undercarriage of rail transit vehicles is mainly carried out by automated cleaning robots. These robots can efficiently clean the surface of the undercarriage, and the dust generated during the cleaning process is usually collected and discharged by a suction system installed in the workshop to maintain a clean environment. However, in actual cleaning, the undercarriage often contains hard particles such as pebbles and gravel. These particles, due to their large mass, are difficult to capture effectively by conventional suction systems after being blown up, and easily scatter on the workshop floor. This not only increases the burden of subsequent manual cleaning but may also adversely affect the operation of workshop equipment and personnel safety.

[0004] Therefore, there is a particular need for a sweeping device for the undercarriage of rail transit vehicles to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of hard particles being difficult to be effectively captured by the air intake system during the purging process, which easily scatter on the workshop floor, increase the cleaning burden and bring safety hazards, this utility model provides a purging device for the undercarriage of rail transit vehicles.

[0006] This utility model is achieved through the following technical means: a sweeping device for the undercarriage of a rail transit vehicle, comprising a sweeping robot, a centrifugal fan, a discharge pipe, a telescopic pipe, a dust suction hood, an electric push rod, a collection plate, a scraper, a guide rod, a spring, a connecting plate, a second spring, a collection frame, and a controller. The centrifugal fan is installed inside the sweeping robot, the discharge pipe is installed on the outlet end of the centrifugal fan, the telescopic pipe is installed on the suction end of the centrifugal fan, the dust suction hood is threaded at the end of the telescopic pipe, and the electric push rod is installed on the left side of the sweeping robot, with its telescopic rod vertically... Extending straight downwards, a connecting plate is installed. The collecting plate is slidably mounted on the connecting plate, and two springs are fixed between the collecting plate and the connecting plate. Multiple guide rods are slidably mounted on the right side of the collecting plate, distributed front and back. A scraper is fixed between one end of two vertically aligned guide rods. The two scrapers are arranged opposite each other. A spring is fixed between each guide rod and the collecting plate. The collecting frame is slidably placed on the inner right side of the blowing robot. The controller is installed on the upper side of the blowing robot. The blowing robot, centrifugal fan, and electric push rod are all electrically connected to the controller.

[0007] As an improvement to the above solution, it also includes a water tank, an air inlet pipe, a water inlet, an impeller, a rotating shaft, a convex plate, a sliding plate, a fixed rod, a second guide rod, a third spring, a piston, and a water outlet pipe. The water tank is installed on the right side of the sweeping robot. The air inlet pipe is fixed to the right side of the sweeping robot and extends into the water tank. The water inlet is installed on the upper part of the water tank. The rotating shaft is rotatably mounted on the inner right side wall of the water tank. One end of the rotating shaft extends into the air inlet pipe and is fixedly connected to an impeller. The other end of the rotating shaft is fixedly connected to two convex plates. Two second guide rods are arranged side by side and fixedly mounted inside the water tank. The sliding plate is slidably mounted between the two second guide rods. The convex plates are located above the sliding plate and in contact with it. A third spring is sleeved on the outside of each second guide rod. The two ends of the third spring are connected to the sliding plate and the water tank, respectively. Multiple fixed rods are fixedly mounted at equal intervals at the bottom of the sliding plate. A piston is fixedly mounted at the end of each fixed rod. Multiple water outlet pipes are fixedly mounted at equal intervals at the bottom of the water tank. The diameter of the piston is the same as the diameter of the water outlet pipe. The end of the fixed rod passes through the corresponding water outlet pipe, and the piston is located outside the corresponding water outlet pipe.

[0008] As an improvement to the above solution, a dustproof net is also included, with a dustproof net fixed to one end of the air intake pipe.

[0009] As an improvement to the above solution, the bottom of the dust hood is fixedly connected to the top of the collection plate to form an integrated collection structure.

[0010] As an improvement to the above solution, a circular pull block is fitted to the front of the collection box.

[0011] As an improvement to the above solution, the piston is made of sealing rubber material.

[0012] Beneficial effects: 1. By setting up a collection system consisting of a centrifugal fan, discharge pipe, telescopic pipe, dust hood, collection plate, scraper and collection frame, it can operate synchronously with the blowing robot, effectively collect hard particles that fall during the blowing process, prevent them from scattering on the ground, significantly reduce the degree of pollution in the workshop, reduce the burden of manual cleaning, and improve the level of automation of the operation.

[0013] 2. The water tank, air inlet pipe, water inlet, impeller, rotating shaft, convex plate, sliding plate, fixed rod, guide rod II, spring III, piston and water outlet pipe form a linked water spraying system. It is driven by the residual pressure of the airflow discharged from the discharge pipe to achieve automatic intermittent water spraying without additional energy consumption, effectively suppressing the spread of dust during purging operations and improving the air quality and working environment in the workshop. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a partial sectional view of the purging robot and water tank components of this utility model.

[0016] Figure 3 This is a partial cross-sectional view of the collecting plate component of this utility model.

[0017] Figure 4 This is a partial sectional view of the water tank and air inlet pipe components of this utility model.

[0018] Reference numerals: 1. Blowing robot; 101. Centrifugal fan; 102. Discharge pipe; 2. Telescopic pipe; 3. Dust hood; 4. Electric push rod; 5. Collection plate; 6. Scraper; 7. Guide rod one; 8. Spring one; 9. Connecting plate; 10. Spring two; 11. Collection frame; 12. Water tank; 121. Air inlet pipe; 13. Water inlet; 14. Impeller; 15. Rotating shaft; 16. Protruding plate; 17. Slide plate; 171. Fixing rod; 18. Guide rod two; 19. Spring three; 20. Piston; 21. Water outlet pipe; 22. Dustproof net; 23. Controller. Detailed Implementation

[0019] Example: A sweeping device for the undercarriage of a rail transit vehicle, such as Figures 1-4As shown, the system includes a cleaning robot 1, a centrifugal fan 101, an exhaust pipe 102, a telescopic pipe 2, a dust hood 3, an electric push rod 4, a collection plate 5, a scraper 6, a guide rod 7, a spring 8, a connecting plate 9, a spring 10, a collection frame 11, and a controller 23. The centrifugal fan 101 is bolted to the inside of the cleaning robot 1. The exhaust pipe 102 is bolted to the outlet end of the centrifugal fan 101. The telescopic pipe 2 is bolted to the suction end of the centrifugal fan 101. The dust hood 3 is threaded onto the end of the telescopic pipe 2. The electric push rod 4 is bolted to the left side of the cleaning robot 1. Its telescopic rod extends vertically downwards and is bolted to the connecting plate 9. The collection plate 5 is slidably mounted on the connecting plate 9 and is fixedly connected to the connecting plate 9 by two springs 10. Spring 10 provides a restoring force for the collection plate 5. The bottom of the dust hood 3 is fixedly connected to the top of the collection plate 5 to form an integrated collection structure. Four guide rods 7 are slidably arranged on the right side of the collection plate 5. A scraper 6 is fixedly connected between the right ends of two vertically aligned guide rods 7. The two scrapers 6 are arranged opposite each other. A spring 8 is fixedly connected between each guide rod 7 and the collection plate 5 to provide a restoring force for the guide rod 7 and the scraper 6. The collection frame 11 is slidably placed on the inner right side of the blowing robot 1. A circular pull block is installed at the front of the frame for easy manual removal and cleaning. The controller 23 is bolted to the upper front side of the blowing robot 1. The blowing robot 1, the centrifugal fan 101 and the electric push rod 4 are all electrically connected to the controller 23.

[0020] like Figure 2 , Figure 3 and Figure 4As shown, it also includes a water tank 12, an air inlet pipe 121, a water inlet 13, an impeller 14, a rotating shaft 15, a protruding plate 16, a sliding plate 17, a fixing rod 171, a second guide rod 18, a third spring 19, a piston 20, a water outlet pipe 21, and a dustproof net 22. The water tank 12 is bolted to the right side of the cleaning robot 1. The air inlet pipe 121 is fixedly connected to the right side of the cleaning robot 1 and extends into the water tank 12. The water inlet 13 is bolted to the upper part of the water tank 12. The rotating shaft 15 is rotatably mounted on the inner right side wall of the water tank 12. Its left end extends into the air inlet pipe 121 and is fixedly connected to the impeller 14. Two protruding plates 16 are fixedly connected to the right end of the rotating shaft 15. Two second guide rods 18 are arranged side by side and fixedly connected to the inside of the water tank 12. The sliding plate 17 is slidably mounted on the two guide rods. Between the two guide rods 18, the convex plate 16 is located above the slide plate 17 and contacts it. Each guide rod 18 is fitted with a spring 19. The upper and lower ends of the spring 19 are connected to the slide plate 17 and the water tank 12 respectively, providing a restoring force for the slide plate 17. Multiple fixed rods 171 are fixedly connected to the bottom of the slide plate 17 at equal intervals. A piston 20 is fixedly connected to the end of each fixed rod 171. Multiple water outlet pipes 21 are fixedly connected to the lower part of the water tank 12 at equal intervals. The diameter of the piston 20 is the same as the diameter of the water outlet pipe 21. The end of the fixed rod 171 passes through the corresponding water outlet pipe 21. The piston 20 is located outside the corresponding water outlet pipe 21. The piston 20 is made of sealing rubber material. When it enters the water outlet pipe 21, it can fit tightly with the inner wall to prevent water leakage. A dustproof net 22 is fixedly connected to the left end of the air inlet pipe 121.

[0021] In the initial state, the convex plate 16 is at a fixed angle with the rotating shaft 15 and presses down on the slide plate 17, the spring 19 is in a compressed state, the piston 20 is located outside the water outlet pipe 21, and the water outlet pipe 21 is in an open state.

[0022] When in use, the staff first activates the electric push rod 4 through the controller 23, controls its telescopic rod to extend to a suitable length, so that the connecting plate 9 drives the collection plate 5 to move down to fit the ground. Then, an appropriate amount of clean water is injected into the water tank 12 through the water inlet 13, the centrifugal fan 101 is started and the operation command is issued. The sweeping robot 1 automatically moves to the bottom of the vehicle to be swept and starts the fully automatic sweeping operation. The dust blown down is collected by the air suction port assembled in the workshop, while hard particles fall down to the collection area of ​​the collection plate 5 due to gravity.

[0023] As the blowing robot 1 moves, the falling hard particles are gradually collected and gathered by the collection plate 5 and scraper 6. At the same time, the centrifugal fan 101 operates to generate negative pressure at its suction end. This negative pressure is transmitted to the dust collection hood 3 through the telescopic tube 2, causing the dust collection hood 3 to generate suction and suck away the hard particles collected by the collection plate 5. The sucked-in hard particles are transported through the internal air duct of the centrifugal fan 101 and discharged through the discharge pipe 102, finally falling into the collection frame 11.

[0024] During the movement of the sweeping robot 1, the collecting plate 5 is slidably connected to the connecting plate 9 by two springs 10, which has a certain buffering capacity. It can adapt to height changes when encountering slight unevenness in the ground and reduce structural impact. Similarly, when the scraper 6 encounters an obstacle, it can slide inward to avoid it with the cooperation of spring 8 and guide rod 7. After passing the obstacle, it will automatically reset under the elastic force of spring 8, ensuring the safe and reliable operation of the collecting structure.

[0025] In addition, when the discharge pipe 102 discharges hard particles, it also discharges residual air pressure. After the airflow is filtered by the dust screen 22, it enters the air inlet pipe 121. The impeller 14 rotates under the push of the airflow, which in turn drives the rotating shaft 15 to rotate synchronously. The rotating shaft 15 drives the convex plate 16 to rotate synchronously, so that the convex plate 16 periodically stops squeezing and squeezing the slide plate 17. When the squeezing of the slide plate 17 stops, the spring 19 returns to its original state and pushes the slide plate 17 to slide upward, so that the fixed rod 171 drives the piston 20 to slide into the water outlet pipe 21 and block the water outlet pipe 21. When squeezing the slide plate 17, the slide plate 17 slides downward, compressing the spring 19. The fixed rod 171 drives the piston 20 to slide out to the outside of the water outlet pipe 21, opening the water outlet pipe 21, so that the water in the water tank 12 flows out under the action of gravity, forming a water curtain.

[0026] In this repeated process, the water outlet pipe 21 opens and closes periodically, and the sprayed water curtain diffuses into the air of the work area, effectively adsorbing suspended dust and continuously playing a dust-reducing role during the purging operation, significantly reducing the dust concentration in the workshop and improving the working environment.

Claims

1. A rail vehicle underfloor blowing device, characterized in that, The system includes a cleaning robot (1), a centrifugal fan (101), an exhaust pipe (102), a telescopic pipe (2), a dust hood (3), an electric push rod (4), a collection plate (5), a scraper (6), a guide rod (7), a spring (8), a connecting plate (9), a spring (10), a collection frame (11), and a controller (23). The centrifugal fan (101) is installed inside the cleaning robot (1). The exhaust pipe (102) is installed on the outlet end of the centrifugal fan (101). The telescopic pipe (2) is installed on the suction end of the centrifugal fan (101). The dust hood (3) is threaded onto the end of the telescopic pipe (2). The electric push rod (4) is installed on the left side of the cleaning robot (1), and its telescopic rod extends vertically downwards. A connecting plate (9) is installed, and a collection plate (5) is slidably set on the connecting plate (9). Two springs (10) are fixed between the collection plate (9) and the connecting plate (9). Multiple guide rods (7) are slidably set on the right side of the collection plate (5). A scraper (6) is fixed between one end of two vertically aligned guide rods (7). The two scrapers (6) are set opposite to each other. A spring (8) is fixed between each guide rod (7) and the collection plate (5). The collection frame (11) is slidably placed on the inner right side of the blowing robot (1). The controller (23) is installed on the upper side of the blowing robot (1). The blowing robot (1), the centrifugal fan (101) and the electric push rod (4) are all electrically connected to the controller (23).

2. The underfloor purging device of rail transit vehicle according to claim 1, characterized in that, It also includes a water tank (12), an air inlet pipe (121), a water inlet (13), an impeller (14), a rotating shaft (15), a convex plate (16), a sliding plate (17), a fixing rod (171), a second guide rod (18), a third spring (19), a piston (20), and a water outlet pipe (21). The water tank (12) is installed on the right side of the blowing robot (1). The air inlet pipe (121) is fixed to the right side of the blowing robot (1) and extends into the water tank (12). The water inlet (13) is installed on the upper part of the water tank (12). The rotating shaft (15) is rotatably set on the inner right side wall of the water tank (12). One end of the shaft extends into the air inlet pipe (121) and is fixedly connected to the impeller (14). The other end of the rotating shaft (15) is fixedly connected to two convex plates (16) and two second guide rods (171). 18) The slide plate (17) is slidably set between the two guide rods (18) and the convex plate (16) is located above the slide plate (17) and in contact with it. Each guide rod (18) is fitted with a spring (19). The two ends of the spring (19) are connected to the slide plate (17) and the water tank (12) respectively. The bottom of the slide plate (17) is fixed with multiple fixed rods (171) distributed at equal intervals. Each fixed rod (171) has a piston (20) fixed at the end. The lower part of the water tank (12) is fixed with multiple water outlet pipes (21) distributed at equal intervals. The diameter of the piston (20) is the same as the diameter of the water outlet pipe (21). The end of the fixed rod (171) passes through the corresponding water outlet pipe (21). The piston (20) is located outside the corresponding water outlet pipe (21).

3. The undercarriage cleaning device for rail transit vehicles according to claim 2, characterized in that, It also includes a dustproof net (22), and a dustproof net (22) is fixed to one end of the air intake pipe (121).

4. The underfloor purging device of rail transit vehicle according to claim 3, characterized in that, The bottom of the dust hood (3) is fixedly connected to the top of the collection plate (5) to form an integrated collection structure.

5. The underfloor purging device of rail transit vehicle according to claim 4, characterized in that, The front of the collection box (11) is equipped with a circular pull block.

6. The underfloor purging device of rail transit vehicle according to claim 5, characterized in that, The piston (20) is made of sealing rubber material.

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