Tunnel type car washing machine for railway car

Abstract

The invention relates to a tunnel type railway vehicle car washing machine which comprises a bearing seat, and a spraying frame, a foam frame, a scrubbing assembly and a flushing frame are sequentially arranged on the top face of the bearing seat. A sewage collecting groove is formed in the top surface of the bearing seat, a treatment box is mounted at the bottom of the sewage collecting groove, one end of the treatment box is open, and a filtering part is arranged between the opening of the treatment box and the inner cavity; the car washer further comprises a conveying pump, a water inlet of the conveying pump is communicated with the inner cavity through a first conveying pipe, a water outlet of the conveying pump is connected with a waste water spray head through a second conveying pipe, and the waste water spray head can spray waste water in the second conveying pipe to the bottom of a railway car entering the car washer. Compared with the prior art, the vehicle washing machine can wash stains at the bottom of the railway vehicle, and the situation that too much mud is attached to the bottom of the vehicle to affect the vehicle overhauling efficiency of maintainers and the service life of wiring harnesses is prevented.

Description

Technical Field

[0001] This invention relates to the field of car wash machine technology, and more specifically to a car wash machine for tunnel-type rail vehicles. Background Technology

[0002] In modern urban rail transit systems, the cleaning of tunnel-type rail vehicles has gradually attracted widespread attention. With the rapid development of rail transit networks, the operating frequency and usage intensity of vehicles are constantly increasing, and the dust, dirt and other pollutants accumulated on the vehicle bodies are also gradually increasing. In order to ensure the cleanliness of the vehicle appearance and its long-term safety and comfort, regular cleaning of rail vehicles has become a necessary maintenance task. The existing rail vehicle cleaning methods mainly include manual cleaning and automated car wash machine cleaning. Although manual cleaning methods can achieve the cleaning function, they are labor-intensive, inefficient and difficult to guarantee consistent cleaning results. Automated car wash machines are gradually becoming a trend.

[0003] However, existing car wash machines cannot wash away the dirt on the bottom of rail vehicles. Over time, a large amount of mud and dirt will accumulate on the bottom of the rail vehicles. The presence of mud and dirt not only affects the maintenance efficiency of the vehicle, but also causes corrosion of some of the wiring on the bottom. In addition, with the increase of washing times, the cleaning brushes of existing car wash machines will accumulate a lot of particles and debris. When the rail vehicles are washed again later, the paint of the rail vehicles is easily damaged by particles and impurities. Summary of the Invention

[0004] The purpose of this invention is to address the problem that existing car wash machines cannot effectively clean the dirt on the bottom of rail vehicles. Over time, a large amount of mud and dirt accumulates on the bottom of rail vehicles, which not only affects the efficiency of maintenance personnel in inspecting the vehicles but also causes corrosion of some of the wiring on the bottom. This invention provides a car wash machine for tunnel-type rail vehicles.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A tunnel-type rail vehicle washing machine includes a support base. A spray frame, a foam frame, a brushing assembly, and a rinsing frame are sequentially arranged on the top surface of the support base. A sludge collection trough is formed on the top surface of the support base, and a treatment box is installed at the bottom of the sludge collection trough. One end of the treatment box is open, and a filter section is provided between the opening of the treatment box and its inner cavity. The machine also includes a delivery pump. The inlet of the delivery pump is connected to the inner cavity through a first delivery pipe, and the outlet of the delivery pump is connected to a wastewater nozzle through a second delivery pipe. The wastewater nozzle can spray wastewater from the second delivery pipe onto the bottom of the rail vehicle entering the washing machine.

[0006] The present invention, employing the aforementioned technical solution, involves a rail vehicle sequentially passing through a spray frame, a foam frame, a brushing assembly, and a rinsing frame. The vehicle's top and sides are pre-wetted with clean water, sprayed with cleaning foam, brushed, and finally rinsed clean. During this process, wastewater flows into a collection tank. Under the negative pressure of a pump, the wastewater is filtered through a filter and enters the inner cavity of a treatment tank. It is then transported to wastewater nozzles, which spray the filtered wastewater to rinse the bottom of the rail vehicle. Compared to existing car wash machines that cannot rinse the dirt on the bottom of rail vehicles, which accumulate over time, resulting in a large amount of mud and grime, affecting maintenance efficiency and causing corrosion of wiring, the car wash machine of this invention can effectively rinse the dirt from the bottom of rail vehicles, preventing excessive mud and grime from affecting maintenance efficiency and the lifespan of wiring harnesses.

[0007] Furthermore, the second conveying pipe is disposed on the top surface of the support, and a plurality of wastewater nozzles are installed on the top of the second conveying pipe, and the plurality of wastewater nozzles are arranged at intervals along the length of the second conveying pipe; the spray direction of any wastewater nozzle is upward; with this arrangement, the spray range of the plurality of wastewater nozzles is wider, and the dirt on the bottom of the rail vehicle can be rinsed over a large area, resulting in a better cleaning effect.

[0008] Furthermore, the filtration unit includes at least two filter screens arranged at intervals in sequence from the opening of the treatment box to the inner cavity; by setting multiple filter screens, the wastewater is filtered multiple times to ensure a high degree of cleanliness after rinsing the bottom of the rail vehicle.

[0009] Furthermore, the spray frame, foam frame, scrubbing assembly, and rinsing frame are arranged longitudinally in sequence; the scrubbing assembly includes a scrubbing frame, which includes two opposing longitudinal beams, with a bidirectional lead screw, a first transmission rod, and a first support rod between the two longitudinal beams. The bidirectional lead screw and the first transmission rod are rotatably connected to the longitudinal beams and are driven to rotate by a first motor and a second motor fixed to the longitudinal beams, respectively; the first support rod is fixed between the two longitudinal beams; the bidirectional lead screw and the first support rod are located on both sides of the first transmission rod; threaded sliders are threadedly connected to both sides of the bidirectional lead screw; first protective boxes are threaded through both sides of the first transmission rod, and a first bevel gear is provided inside the first protective box. The first bevel gear can slide axially and is circumferentially fixedly sleeved on the first transmission rod; first support sliders are slidably sleeved on both sides of the first support rod; each first protective box is fixedly connected to the threaded slider and the first support slider on the same side; a vertical drive shaft is rotatably connected to the bottom plate of each first protective box, and a second bevel gear is fixedly connected to the top of the drive shaft. A cleaning roller is fixedly connected to the bottom of the device, and a second bevel gear meshes with a first bevel gear. A first support slider and a first support rod act as guides. When the first motor drives the bidirectional lead screw to rotate, the two threaded sliders move in opposite directions, thereby causing the two first protective boxes to slide in opposite directions along the shaft of the first transmission rod. The first protective boxes push the first bevel gear to slide along the shaft of the first transmission rod, and drive the drive shaft to move, thus bringing the cleaning roller into contact with the outer walls of both sides of the rail vehicle. Then, the second drive motor drives the first transmission rod to rotate at high speed, causing the two first bevel gears to rotate. The first bevel gears drive the second bevel gear to rotate, which in turn drives the drive shaft to rotate. The drive shaft then drives the cleaning roller to rotate at high speed, thus allowing the cleaning brush to wash the vehicle. This configuration is effective for washing rail vehicles of different widths. Furthermore, after cleaning the train, the cleaning rollers on both sides can be driven closer together, causing them to collide with each other, thus achieving a self-cleaning effect and preventing damage to the paint surface of the rail vehicle from excessive particles and debris adhering to the cleaning rollers.

[0010] Furthermore, it also includes a second transmission rod and a second support rod. The two ends of the second transmission rod are rotatably connected to two longitudinal beams, and the second support rod is fixed between the two longitudinal beams. The first support rod, the first transmission rod, the double-acting screw, the second transmission rod, and the second support rod are arranged sequentially at intervals. Power is transmitted between the first and second transmission rods via a chain drive. Second protective boxes are installed on both sides of the second transmission rod, and a first bevel gear is installed inside the second protective box. The first bevel gear can slide axially and is circumferentially fixedly sleeved on the second transmission rod. The second support rod slides on both sides of its body. A second supporting slider is fitted; each second protective box is fixedly connected to the threaded slider and the second supporting slider on the same side; a vertical drive shaft is rotatably connected to the bottom plate of each second protective box, a second bevel gear is fixedly connected to the top of the drive shaft, and a cleaning roller is fixedly connected to the bottom of the drive shaft, with the second bevel gear meshing with the first bevel gear; with this configuration, the brushing assembly includes two cleaning rollers on each side, the first motor can drive the four cleaning rollers to move synchronously, and the second motor can drive the four cleaning rollers to rotate synchronously, resulting in more thorough brushing of the rail vehicle and better cleaning effect.

[0011] Furthermore, the washing frame includes two opposing crossbeams, which are connected to the longitudinal beams to form a "U"-shaped frame. The two ends of a limiting rod are respectively fixed to the middle of the two crossbeams. The first support rod, the double-acting screw, and the second support rod all pass through the limiting rod, which supports the middle of the first support rod, the double-acting screw, and the second support rod. By setting the limiting rod, the first support rod, the double-acting screw, and the second support rod are more securely installed on the washing frame, and the structure is stable when the washing assembly is running.

[0012] Furthermore, the spray frame, foam frame, and rinsing frame are all "gate" shaped structures. A "gate" shaped third delivery pipe is arranged on any of the three frames. The top of the third delivery pipe is connected to the liquid inlet valve pipe. Multiple nozzles are arranged at intervals along the length of the third delivery pipe, with the spray direction of any nozzle facing the inside of the frame. Cleaning fluid is injected into the liquid inlet valve pipe, and the multiple nozzles can rinse the top and two sides of the rail vehicle passing through the "gate" shaped frame. In addition, by standardizing the third delivery pipes of the spray frame, foam frame, and rinsing frame, the compatibility between the pipes can be effectively improved, avoiding the problem of needing to spare multiple pipes of different sizes, which would occupy warehouse space.

[0013] Furthermore, it also includes a canopy, which is installed on top of the spray frame, foam frame, scrubbing assembly, and rinsing frame; the canopy can effectively block rainwater, thereby improving the service life of the components.

[0014] Furthermore, the top surface of the support is provided with two tracks, which are respectively located on both sides of the opening of the sludge collection tank. The spray frame, foam frame, brushing component and rinsing frame are arranged sequentially along the length of the tracks; the tracks can effectively facilitate the movement of the rail vehicle.

[0015] Furthermore, a grid plate is installed on the opening of the sludge collection tank; the grid plate can effectively prevent large objects from falling into the sludge collection tank and can improve the safety of workers during maintenance to a certain extent.

[0016] Compared with existing technologies, the advantages of this invention are as follows: the car wash machine can rinse the dirt on the bottom of rail vehicles, preventing excessive mud and dirt from affecting the maintenance efficiency of the vehicle and the service life of the wiring harness; the four cleaning rollers rotate synchronously, making the cleaning of the rail vehicles more thorough and the cleaning effect better; it can be effectively applied to the cleaning of rail vehicles of different widths; in addition, after the train is cleaned, it can drive the cleaning rollers on both sides to come closer together, so that the cleaning rollers collide with each other, thereby achieving the function of self-cleaning the cleaning rollers and avoiding damage to the paint surface of the rail vehicles caused by a large amount of particles and debris attached to the cleaning rollers. Attached Figure Description Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure after the ceiling of the present invention has been removed; Figure 3 This is a schematic diagram of the structure after the ceiling, washing components, and grid panels of the present invention have been removed; Figure 4 This is a structural diagram of the brushing assembly; Figure 5 A schematic diagram of the structure of the scrubbing assembly after removing the scrubbing frame and protective box; Figure 6 This is a schematic diagram of the cleaning roller structure; Figure 7 This is an exploded view of the rinsing assembly.

[0017] In the diagram, the markings are: 1-support plate, 2-brush assembly, 201-brush frame, 202-cleaning roller, 203-first motor, 204-second motor, 205-second protective box, 206-support rod, 207-first transmission rod, 208-drive gear plate, 209-transmission belt, 210-driven gear plate, 211-second support slider, 212-threaded slider, 213-double-acting screw, 214-limiting rod, 215-second support rod, 216-round rod, 217-first bevel gear, 218-drive shaft, 219-second bevel gear, 220-first support slider, 221-second transmission rod. 222-First protective box, 223-Longitudinal beam, 224-Crossbeam, 3-Flushing assembly, 301-Transfer pipe, 302-Wastewater nozzle, 303-Transfer pump, 304-Treatment box, 305-Positioning groove, 306-Wire mesh filter, 307-Microporous filter, 308-Box cover, 309-Sponge frame, 4-Spray frame, 5-Foam frame, 6-Flushing frame, 7-Canopy, 8-Flushing nozzle, 9-Foam nozzle, 10-Inlet valve pipe, 11-Side pipe, 12-Atomizing nozzle, 13-Support rod, 14-Collection tank, 15-Flow pipe, 16-Grid mesh plate, 17-Collection frame, 18-Rail. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings.

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] This embodiment provides a car washing machine for tunnel-type rail vehicles, such as... Figures 1-7 As shown, the system includes a support base, on the top surface of which a spray frame 4, a foam frame 5, a brushing assembly 2, and a rinsing frame 6 are sequentially arranged. The spray frame 4, foam frame 5, brushing assembly 2, and rinsing frame 6 are arranged longitudinally. A sludge collection trough 14 is provided on the top surface of the support base, and a treatment box 304 is installed at the bottom of the sludge collection trough 14. One end of the treatment box 304 is open, and a filter section is provided between the opening of the treatment box 304 and the inner cavity. The system also includes a delivery pump 303, whose inlet is connected to the inner cavity through a first delivery pipe, and whose outlet is connected to a wastewater nozzle 302 through a second delivery pipe 301. The wastewater nozzle 302 can spray the wastewater in the second delivery pipe 301 to the bottom of the rail vehicle entering the car wash machine. Two tracks 18 are provided on the top surface of the support, and the two tracks 18 are respectively located on both sides of the opening of the sludge collection tank 14. The spray frame 4, foam frame 5, brushing assembly 2 and rinsing frame 6 are arranged sequentially along the length direction (i.e., longitudinal direction) of the tracks 18. The second conveying pipe 301 is arranged transversely on the top surface of the support, specifically between the two tracks 18. Multiple wastewater nozzles 302 are installed on the top of the second conveying pipe 301, and the multiple wastewater nozzles 302 are arranged at intervals along the length direction of the second conveying pipe 301. The spray direction of any wastewater nozzle 302 is upward. In this embodiment, preferably, the spray direction of the wastewater nozzle 302 is inclined upward. The processing tank 304, the conveying pump 303, the first conveying pipe, the second conveying pipe 301 and the wastewater nozzle 302 constitute the washing assembly 3 of this car wash machine. The washing assembly 3 is located at the front end of the sludge collection tank 14. The support can be an integral structure or a combined structure. In this embodiment, the support includes a support plate 1 and a sludge collection frame 17. The support plate 1 is a rectangular plate with a longitudinal strip opening in the middle. The sludge collection frame 17 is a square frame with the opening located on the top surface. The sludge collection frame 17 is fixed to the bottom of the support plate 1. The support plate 1 and the sludge collection frame 17 are spliced ​​together to form the support. The filtration section includes at least two filter screens arranged at intervals from the opening of the processing box 304 to the inner cavity. In this embodiment, the processing box 304 has an opening at the rear end and the inner cavity is located at the front end. The processing box 304 is generally rectangular and includes a box body and a box cover 308 that are detachably and fixedly connected. Three positioning grooves 305 are provided on the inner walls of both sides of the box body. Through these three sets of positioning grooves 305, a wire mesh filter 306, a microporous filter 307, and a sponge frame 309 are installed sequentially from back to front (i.e., from the opening to the inner cavity) inside the processing box 304. The cover 308 can be opened effectively to maintain and replace the internal steel wire filter 306, microporous filter 307 and sponge frame 309; the delivery pump 303 is fixed in the middle of the front end of the upper surface of the support plate 1, and the second delivery pipe 301 is fixed at the edge of the front end of the upper surface of the support plate 1. The second delivery pipe 301 is arranged horizontally and closed at both ends. The outlet of the delivery pump 303 is connected to the middle of the rear side of the second delivery pipe 301, and the inlet of the delivery pump 303 is connected to the bottom of the front end cavity of the treatment tank 304 through the first delivery pipe. The scrubbing assembly 2 includes a scrubbing frame 201, which includes two opposing longitudinal beams 223. A bidirectional lead screw 213, a first transmission rod 207, and a first support rod 219 are disposed between the two longitudinal beams 223. Both the bidirectional lead screw 213 and the first transmission rod 207 are rotatably connected to the longitudinal beams 223 and are driven to rotate by a first motor 203 and a second motor 204, respectively, fixed to the longitudinal beams 223. The first support rod 219 is fixed between the two longitudinal beams 223. The bidirectional lead screw 213 and the first support rod 219 are located on opposite sides of the first transmission rod 207. Threaded sliders 212 are threadedly connected to both sides of the bidirectional lead screw 213. Threaded sliders 212 are threadedly connected to both sides of the first transmission rod 207. Each side is provided with a first protective box 222, and a first bevel gear 217 is provided inside the first protective box 222. The first bevel gear 217 can slide axially and is fixedly sleeved on the first transmission rod 207 in the circumferential direction. The first support rod 219 has a first support slider 220 slidably sleeved on both sides of its body. Each first protective box 222 is fixedly connected to the threaded slider 212 and the first support slider 220 on the same side. A vertical drive shaft 218 is rotatably connected to the bottom plate of each first protective box 222. A second bevel gear 219 is fixedly connected to the top of the drive shaft 218, and a cleaning roller 202 is fixedly connected to the bottom of the drive shaft 218. The second bevel gear 219 meshes with the first bevel gear 217. Specifically, the housing of the first motor 203 is fixed to the outside of a longitudinal beam 223, and its output end extends between two longitudinal beams 223 and is fixedly connected to one end of a bidirectional lead screw 213. The other end of the bidirectional lead screw 213 is rotatably connected to another longitudinal beam 223. The housing of the second motor 204 is fixed to the outside of a longitudinal beam 223, and its output end extends between two longitudinal beams 223 and is fixedly connected to one end of a first transmission rod 207. The other end of the first transmission rod 207 is rotatably connected to another longitudinal beam 223. The first transmission rod 207 includes two fixedly connected parts, one of which is connected to the first bevel gear. The main rod 217 is fitted with the main rod and the round rod 216 is rotatably connected to the longitudinal beam 223; the first bevel gear 217 is fitted with the main rod through a spline, or the main rod has a polygonal cross-section (e.g., rectangular), and the first bevel gear 217 is fitted with a polygonal inner hole of a suitable shape, so that the first bevel gear 217 can slide axially and be fixedly sleeved on the first transmission rod 207; the first protective box 222 is a square box, its front side is directly fixedly connected to the first supporting slider 220, and its rear side is connected to the threaded slider 212 through the supporting rod 206, so that the first protective box 222 is supported; It also includes a second transmission rod 221 and a second support rod 215. The two ends of the second transmission rod 221 are rotatably connected to two longitudinal beams 223, and the second support rod 215 is fixed between the two longitudinal beams 223. The first support rod 219, the first transmission rod 207, the bidirectional lead screw 213, the second transmission rod 221, and the second support rod 215 are arranged in sequence at intervals. The first transmission rod 207 and the second transmission rod 221 transmit power through a chain drive. The second transmission rod 221 has a second protective box 205 on both sides of its body, and the second protective box 205 contains a first bevel gear 217. The first bevel gear 217 is slidably mounted on the second transmission rod 221 and fixedly mounted circumferentially. The second support rod 215 has a second support slider 211 slidably mounted on both sides of its body. Each second protective box 205 is fixedly connected to the threaded slider 212 and the second support slider 211 on the same side. A vertical drive shaft 218 is rotatably connected to the bottom plate of each second protective box 205. The top of the drive shaft 218 is fixedly connected to the second bevel gear 219, and the bottom of the drive shaft 218 is fixedly connected to the cleaning roller 202. The second bevel gear 219 meshes with the first bevel gear 217. Specifically, one end of the second transmission rod 221 is cylindrical and inserted into a longitudinal beam 223 for rotatable connection, while the other end is a round rod 216, inserted into another longitudinal beam 223 for rotatable connection. The middle part is the main rod that mates with the first bevel gear 217. The first bevel gear 217 and the main rod are connected via a spline, or the main rod has a polygonal cross-section (e.g., rectangular), and the first bevel gear 217 is connected via a polygonal inner hole of a suitable shape. Both configurations allow the first bevel gear 217 to slide axially and be circumferentially fixedly fitted onto the second transmission rod 221. The second protective box 205... The box is square, with its front side connected to the threaded slider 212 via a receiving rod 206, and its rear side directly fixedly connected to the second supporting slider 211, thereby supporting the second protective box 205; the round rod 216 of the first transmission rod 207 passes through the longitudinal beam 223, and the portion of the first transmission rod 207 located outside the longitudinal beam 223 is fixedly connected to the driving gear 208; the round rod 216 of the second transmission rod 221 passes through the longitudinal beam 223, and the portion of the second transmission rod 221 located outside the longitudinal beam 223 is fixedly connected to the driven gear 210; the outer walls of both the driving gear 208 and the driven gear 210 are fitted with transmission toothed belts 209; The washing frame 201 includes two opposing crossbeams 224, which are connected to the longitudinal beams 223 to form a "U"-shaped frame. A limiting rod 214 has its two ends fixed to the middle of the two crossbeams 224 respectively. A first supporting rod 219, a double-acting screw 213, and a second supporting rod 215 all pass through the limiting rod 214. The limiting rod 214 supports the middle of the first supporting rod 219, the double-acting screw 213, and the second supporting rod 215. The double-acting screw 213 has no threads in its middle and can rotate within the limiting rod 214. A first transmission rod 207 and a second transmission rod 221 both pass through holes in the limiting rod 214 but do not contact the limiting rod 214. The spray frame 4, foam frame 5, and rinsing frame 6 are all "gate" shaped structures. A "gate" shaped third delivery pipe is arranged on any of the three frames. The top of the third delivery pipe is connected to the liquid inlet valve pipe 10. Multiple nozzles are arranged at intervals along the length of the third delivery pipe, with the spray direction of any nozzle facing the inside of the frame. The third delivery pipe includes a horizontally arranged flow pipe 15 at the top and vertically arranged side pipes 11 on both sides. The middle of the flow pipe 15 is connected to the liquid inlet valve pipe 10, and the tops of the two side pipes 11 are respectively connected to the two ends of the flow pipe 15. The bottom of the side pipe 11 is closed; the side pipe 11 is fixedly connected to the frame by the support rod 13; in order to make the top of the rail vehicle more thoroughly washed, two more flow pipes 15 can be arranged in one frame. These two flow pipes 15 are located on the front and rear sides of the aforementioned flow pipe 15, respectively. The three flow pipes 15 are arranged horizontally at intervals on the top and are connected to each other; each flow pipe 15 and the side pipe 11 is equipped with nozzles arranged at intervals; specifically, the spray frame 4 is equipped with atomizing nozzles 12, the foam frame 5 is equipped with foam nozzles 9, and the rinsing frame 6 is equipped with rinsing nozzles 8. It also includes a canopy 7, which is installed on top of the spray frame 4, foam frame 5, scrubbing assembly 2 and rinsing frame 6; specifically, the canopy 7 is fixedly connected to the top surface of the spray frame 4 and rinsing frame 6; a grid plate 16 is installed on the opening of the sludge collection tank 14.

[0021] Working Principle: Before initial use, connect the clean water pipe to the inlet valve pipe 10 of the spray frame 4 and the rinsing frame 6 to supply water. Then connect the foam generating device to the inlet valve pipe 10 of the foam frame 5 to provide cleaning foam. During daily use, the rail vehicle drives at a low and uniform speed through the track 18 into the tunnel-type car wash machine. Upon entry, clean water enters the flow pipe 15 and the side pipe 11 through the inlet valve pipe 10 of the spray frame 4, thereby allowing the atomizing nozzles 12 on both sides and the top to pre-wet the sides and top of the rail vehicle. Simultaneously, the delivery pump 303 draws the inner cavity of the treatment tank 304 to negative pressure, allowing wastewater to enter the treatment tank. The wastewater passes through the opening of box 304, where larger impurities are filtered out by wire mesh 306, smaller impurities by microporous mesh 307, and then further filtered by sponge frame 309. It is then pumped by pump 303 into the second conveying pipe 301, and then rinsed at the bottom of the rail vehicle by inclined wastewater nozzles 302. The train then enters the lower end of foam frame 5, where foam generated by the foaming device enters the flow pipe 15 and side pipe 11 through the inlet valve pipe 10 of foam frame 5. This allows foam nozzles 9 to spray foam onto the sides and top of the rail vehicle, dissolving stains on the surface of the rail vehicle. Then, when it enters the lower end of the brushing frame 201, the first drive motor 203 drives the bidirectional lead screw 213 to rotate, causing the threaded sliders 212 at both ends to move in the opposite direction. This, in turn, causes the first protective boxes 222 on both sides to move in the opposite direction and the second protective boxes 205 on both sides to move in the opposite direction. This causes the first bevel gear 217 inside the box to slide on the body of the first transmission rod 207 and the second transmission rod 221, and also causes the drive shaft 218 to move, thereby bringing the cleaning brush into contact with the outer walls of both sides of the rail vehicle. Then, the second motor 204 drives the first transmission rod 207 to rotate at high speed, which in turn drives the second transmission rod 207 through the active gear plate 208, the transmission belt 209 and the driven gear plate 210. 21 rotates at high speed, causing the first transmission rod 207 and the second transmission rod 221 to drive the first bevel gear 217 to rotate. Then, the first bevel gear 217 drives the second bevel gear 219 to rotate, and the second bevel gear 219 drives the drive shaft 218 to rotate. This causes the drive shaft 218 to drive the cleaning roller 202 to rotate at high speed, thereby causing the cleaning brush to brush the vehicle. Then, the vehicle enters the interior of the washing frame 6. Then, clean water enters the flow pipe 15 and the side pipe 11 through the liquid inlet valve pipe 10 of the washing frame 6, thereby causing the washing nozzles 8 on both sides and the top to wash the sides and the top of the rail vehicle respectively. After the entire train of vehicles is cleaned, the car wash machine is turned off.After the car wash machine has been running for a certain period of time, the first motor 203 drives the bidirectional lead screw 213 to rotate, causing the two cleaning rollers 202 on both sides to move closer together. Then, they rotate at high speed, causing the cleaning rollers 202 to strike each other, thereby removing particles and impurities attached to the bristles. Simultaneously, maintenance personnel need to maintain, inspect, and replace the parts of the car wash machine.

[0022] Compared to existing car wash machines that cannot wash away dirt on the bottom of rail vehicles, the present invention, employing the aforementioned technical solution, addresses the issue of accumulated mud and grime on the bottom of rail vehicles due to long-term accumulation. This not only affects the efficiency of maintenance personnel in inspecting the vehicles but also leads to corrosion of some wiring. The car wash machine of the present invention is equipped with a washing component 3, which can wash away dirt on the bottom of rail vehicles, preventing excessive mud and grime from affecting the efficiency of maintenance personnel in inspecting the vehicles and the service life of the wiring harness. Furthermore, the four cleaning rollers 202 rotate synchronously, resulting in a more thorough cleaning of the rail vehicles and a better cleaning effect. It is effectively applicable to the cleaning of rail vehicles of different widths. In addition, after cleaning the train, the two cleaning rollers 202 on both sides can be driven to approach each other, causing them to collide and achieve a self-cleaning effect, thus preventing damage to the paint surface of the rail vehicles caused by excessive particles and debris adhering to the cleaning rollers 202.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car washing machine for tunnel-type rail vehicles, characterized in that: The system includes a support base, on the top surface of which a spray frame (4), a foam frame (5), a brushing assembly (2), and a rinsing frame (6) are arranged in sequence; a sludge collection trough (14) is provided on the top surface of the support base, and a treatment box (304) is installed at the bottom of the sludge collection trough (14). One end of the treatment box (304) is open, and a filter section is provided between the opening of the treatment box (304) and the inner cavity; the system also includes a conveying pump (303), the inlet of which is connected to the inner cavity through a first conveying pipe, and the outlet of which is connected to a wastewater nozzle (302) through a second conveying pipe (301). The wastewater nozzle (302) can spray the wastewater in the second conveying pipe (301) to the bottom of the rail vehicle entering the car wash machine.

2. The car washing machine for tunnel-type rail vehicles according to claim 1, characterized in that: The second conveying pipe (301) is disposed on the top surface of the support, and a plurality of wastewater nozzles (302) are installed on the top of the second conveying pipe (301), and the plurality of wastewater nozzles (302) are arranged at intervals along the length direction of the second conveying pipe (301); the spraying direction of any wastewater nozzle (302) is upward.

3. The car washing machine for tunnel-type rail vehicles according to claim 1, characterized in that: The filtration section includes at least two filter screens arranged sequentially at intervals from the opening of the processing box (304) to the inner cavity.

4. The car washing machine for tunnel-type rail vehicles according to claim 1, characterized in that: The spray frame (4), foam frame (5), scrubbing assembly (2), and rinsing frame (6) are arranged longitudinally. The scrubbing assembly (2) includes a scrubbing frame (201), which includes two opposing longitudinal beams (223). A bidirectional lead screw (213), a first transmission rod (207), and a first support rod (219) are provided between the two longitudinal beams (223). The bidirectional lead screw (213) and the first transmission rod (207) are rotatably connected to the longitudinal beams (223) and are driven to rotate by a first motor (203) and a second motor (204) fixed on the longitudinal beams (223), respectively. The first support rod (219) is fixed between the two longitudinal beams (223). The bidirectional lead screw (213) and the first support rod (219) are located on both sides of the first transmission rod (207). Both sides of the bidirectional lead screw (213) are threaded. A threaded slider (212) is connected to the first transmission rod (207). A first protective box (222) is provided on both sides of the first transmission rod (207). A first bevel gear (217) is provided inside the first protective box (222). The first bevel gear (217) can slide along the axis and is fixedly sleeved on the first transmission rod (207) in the circumferential direction. A first support slider (220) is slidably sleeved on both sides of the first support rod (219). Each first protective box (222) is fixedly connected to the threaded slider (212) and the first support slider (220) on the same side. A vertical drive shaft (218) is rotatably connected to the bottom plate of each first protective box (222). A second bevel gear (219) is fixedly connected to the top of the drive shaft (218). A cleaning roller (202) is fixedly connected to the bottom of the drive shaft (218). The second bevel gear (219) meshes with the first bevel gear (217).

5. The car washing machine for tunnel-type rail vehicles according to claim 4, characterized in that: It further includes a second transmission rod (221) and a second support rod (215). The two ends of the second transmission rod (221) are respectively rotatably connected to two longitudinal beams (223), and the second support rod (215) is fixed between the two longitudinal beams (223); the first support rod (219), the first transmission rod (207), the bidirectional screw rod (213), the second transmission rod (221) and the second support rod (215) are arranged at intervals in sequence; power is transmitted between the first transmission rod (207) and the second transmission rod (221) through chain drive; second protective boxes (205) are respectively arranged on both sides of the body of the second transmission rod (221), and a first bevel gear (217) is arranged in each second protective box (205). The first bevel gear (217) is sleeved on the second transmission rod (221) in an axially slidable and circumferentially fixed manner. Second support sliders (211) are respectively sleeved on both sides of the body of the second support rod (215); any one of the second protective boxes (205) is fixedly connected to the threaded slider (212) and the second support slider (211) on the same side; a vertical drive shaft (218) is rotatably connected to the bottom plate of any one of the second protective boxes (205). A second bevel gear (219) is fixedly connected to the top of the drive shaft (218), a cleaning brush roller (202) is fixedly connected to the bottom of the drive shaft (218), and the second bevel gear (219) meshes with the first bevel gear (217).

6. The car washing machine for tunnel-type rail vehicles according to claim 5, characterized in that: The scrubbing frame (201) includes two opposite cross beams (224). The cross beams (224) and the longitudinal beams (223) are connected to form a "mouth"-shaped frame. The two ends of a limiting rod (214) are respectively fixed to the middle parts of the two cross beams (224). The first support rod (219), the bidirectional screw rod (213) and the second support rod (215) all pass through the limiting rod (214), and the limiting rod (214) supports the middle parts of the first support rod (219), the bidirectional screw rod (213) and the second support rod (215).

7. The tunnel-type rail vehicle washing machine according to claim 1, characterized in that: The spray frame (4), the foam frame (5) and the flushing frame (6) are all of a "door"-shaped structure. A "door"-shaped third delivery pipe is arranged on any one of the three frames. The top of the third delivery pipe is communicated with the liquid inlet valve pipe (10). A plurality of spray heads are arranged at intervals along the length direction of the third delivery pipe, and the spraying direction of any one of the spray heads faces the inner side of the frame.

8. The car washing machine for tunnel-type rail vehicles according to claim 1, characterized in that: It further includes a ceiling (7), and the ceiling (7) is installed on the tops of the spray frame (4), the foam frame (5), the scrubbing assembly (2) and the flushing frame (6).

9. The car washing machine for tunnel-type rail vehicles according to claim 1, characterized in that: Two tracks (18) are arranged on the top surface of the support seat. The two tracks (18) are respectively arranged on both sides of the opening of the sewage collection tank (14). The spray frame (4), the foam frame (5), the scrubbing assembly (2) and the flushing frame (6) are arranged in sequence along the length direction of the tracks (18).

10. The car washing machine for tunnel-type rail vehicles according to claim 1, characterized in that: A grille mesh plate (16) is installed on the opening of the sewage collection tank (14).

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