Urban rail vehicle ventilation device

Abstract

The urban rail vehicle ventilation device comprises a ventilation shell, grids, an automatic ash removing mechanism, an ash discharging mechanism and a ventilation circulation mechanism, the ventilation shell is provided with openings in a vertically symmetrical mode and fixedly provided with the grids, two sets of sliding rails are fixedly arranged in the ventilation shell in a vertically symmetrical mode, the sliding rails are fixedly arranged in a front-back symmetrical mode, and a sliding block is arranged between the sliding rails in a sliding mode. A dust collection box is fixedly arranged on one side outside the ventilation shell, a vacuum pump is fixedly arranged at the bottom of the dust collection box, driving mechanisms are symmetrically arranged in the ventilation shell up and down, an ash discharge mechanism is arranged on one side in the dust collection box, and a ventilation circulation mechanism is arranged in the ventilation shell. The screw rod rotates to drive the sliding block and the dust collection flat head to reciprocate along the sliding rail so that dust attached to the grating can be sucked into the dust collection box through the dust collection flat head, the second motor drives the dust discharge auger to rotate to automatically discharge dust, the overhauling efficiency is effectively improved, auxiliary fans in the air inlet pipe and the air outlet pipe rotate in opposite directions, and the dust collection efficiency is improved. And stable air circulation is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation, in particular to a ventilation device for urban rail vehicles. Background Art

[0002] The ventilation system of rail vehicles plays a crucial role in ensuring the comfort of passengers and the normal operation of vehicles. The ventilation device is mainly used to timely discharge the stale air inside the vehicle, introduce fresh air, improve the air quality, provide a healthy environment for passengers and staff, and help regulate the temperature inside the vehicle to keep it within a suitable temperature range. Especially in hot summer or cold winter, good ventilation can assist the air conditioning system and improve the riding experience of passengers;

[0003] In the utility model with the application number 202223338299.0, a ventilation device inside an urban rail vehicle is disclosed. Through the structural design of the spring clamping piece, the function of quickly disassembling and assembling the grille is realized, and the problem that a large amount of dust is easily attached to the surface of the grille after long-term use of the existing ventilation device is solved. Therefore, it is necessary to regularly disassemble the grille for cleaning. Most of the existing grilles are fixed by bolts, and special tools are required for disassembly and assembly. The bolts also need to be tightened one by one, and the process is relatively complicated, which increases the time for the staff to prepare the urban rail vehicle. The work efficiency is improved. Through the structural design of the anti-misoperation device, the function of preventing misoperation of the sliding plate is realized, and the problem that the sliding plate is exposed outside and the personnel in the vehicle are noisy, so as to prevent personnel from accidentally touching the sliding plate and causing the grille to fall and injure people is solved, and the risk of the grille falling is reduced;

[0004] However, after long-term use of the above-mentioned ventilation device inside an urban rail vehicle, the staff still needs to regularly disassemble and clean the grille, and it is impossible to automatically discharge the dust attached to the grille, which is likely to affect the maintenance efficiency of urban rail vehicles. In the above-mentioned ventilation device inside an urban rail vehicle, only one set of fans can rotate to only realize exhaust or blowing, and it is impossible to simultaneously discharge the stale air inside the vehicle and introduce fresh air, and it is impossible to form a stable air circulation, which is likely to affect the ventilation efficiency of urban rail vehicles. Therefore, the utility model proposes a ventilation device for urban rail vehicles to solve the problems existing in the prior art. Summary of the Utility Model

[0005] In view of the above problems, the purpose of the present utility model is to provide a ventilation device for urban rail vehicles. The ventilation device for urban rail vehicles drives a slider and a dust suction flat head to reciprocate along a slide rail by the rotation of a screw rod, sucks the dust attached to the grille into a dust collection box through the dust suction flat head, and drives a dust discharging auger to rotate by a second motor to automatically discharge the dust accumulated in the dust collection box, solving the problem that the grille needs to be disassembled and cleaned regularly by workers after long-term use of the ventilation device, effectively improving the maintenance efficiency. The auxiliary fans in the air inlet pipe and the air outlet pipe rotate in opposite directions to introduce fresh air while exhausting the air inside the vehicle, forming a stable air circulation.

[0006] To achieve the purpose of the present utility model, the present utility model is realized through the following technical solutions: A ventilation device for urban rail vehicles includes a ventilation housing, a grille, an automatic dust cleaning mechanism, a dust discharging mechanism, and a ventilation circulation mechanism. The ventilation housing is symmetrically open up and down and is fixedly provided with a grille. The automatic dust cleaning mechanism includes a slide rail, a slider, a dust suction flat head, a dust collection box, a vacuum pump, and a driving mechanism. The slide rails are symmetrically and fixedly provided up and down inside the ventilation housing, and two groups are symmetrically and fixedly provided front and back. A slider is slidably provided between the slide rails, and a dust suction flat head is fixedly provided on the slider. A dust collection box is fixedly provided on one side outside the ventilation housing, and the dust collection box is connected to the dust suction flat head through a flexible hose. A vacuum pump is fixedly provided at the bottom of the dust collection box. The driving mechanisms are symmetrically provided up and down inside the ventilation housing, and a dust discharging mechanism is provided on one side inside the dust collection box. A ventilation circulation mechanism is provided inside the ventilation housing.

[0007] Further improvement lies in that: The driving mechanism includes a screw rod, a first motor, and a threaded hole. The screw rods are symmetrically and rotatably provided up and down inside the ventilation housing, and the first motors are symmetrically and fixedly provided on the upper and lower sides outside the other side of the ventilation housing. A threaded hole is correspondingly provided in the middle of the slider.

[0008] Further improvement lies in that: The output end of the first motor is drivingly connected to the screw rod, and the screw rod is in threaded fit through the threaded hole.

[0009] Further improvement lies in that: The dust discharging mechanism includes a dust discharging auger, a second motor, a spring, and a sealing cover. The dust discharging auger is vertically and rotatably provided on one side inside the dust collection box, the second motor is fixedly provided on one side below the dust collection box, the dust collection box is open on one side above and symmetrically fixedly provided with springs, and a sealing cover is fixedly provided between the springs.

[0010] Further improvement lies in that: The output end of the second motor is drivingly connected to the dust discharging auger, and the sealing cover corresponds to the vertical position of the dust discharging auger.

[0011] The further improvement lies in that: the ventilation and circulation mechanism includes a ventilation chamber, an air inlet pipe, an air outlet pipe, a circulation fan, an auxiliary fan, and a circulation through hole. A ventilation chamber is fixedly arranged in the middle of the ventilation housing. An air inlet pipe is arranged on one side inside the ventilation chamber, and an air outlet pipe is arranged on the other side inside the ventilation chamber. A circulation fan is fixedly arranged in the middle of the ventilation chamber. Auxiliary fans are fixedly arranged above the air inlet pipe and the air outlet pipe. Circulation through holes are respectively communicated with the air inlet pipe and the air outlet pipe on both sides of the circulation fan.

[0012] The further improvement lies in that: the air inlet pipe and the air outlet pipe are open at the upper and lower ends. The two groups of auxiliary fans rotate in opposite directions. The circulation fan and the auxiliary fans are driven by a motor electrically.

[0013] The beneficial effects of the present utility model are as follows: by rotating the screw rod, the slider and the dust suction flat head reciprocate along the slide rail, and the dust attached to the grille is sucked into the dust collection box through the dust suction flat head. By driving the ash discharge auger to rotate by the second motor, the dust accumulated in the dust collection box is automatically discharged, solving the problem that the grille needs to be disassembled and cleaned regularly by the staff after the ventilation device is used for a long time, effectively improving the maintenance efficiency. By rotating the auxiliary fans in the air inlet pipe and the air outlet pipe in opposite directions, fresh air is introduced while exhausting the air in the vehicle, forming a stable air circulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall front view sectional view of the present utility model;

[0015] Figure 2 is the overall top view of the present utility model;

[0016] Figure 3 is the three-dimensional sectional view schematic diagram of the ventilation chamber of the present utility model;

[0017] Figure 4 is the side view of the slider of the present utility model;

[0018] Figure 5 is the enlarged schematic diagram at A of the present utility model.

[0019] Wherein: 1. Ventilation housing; 2. Grille; 3. Slide rail; 4. Slider; 5. Dust suction flat head; 6. Dust collection box; 7. Vacuum pump; 8. Screw rod; 9. First motor; 10. Threaded hole; 11. Ash discharge auger; 12. Second motor; 13. Spring; 14. Sealing cover; 15. Ventilation chamber; 16. Air inlet pipe; 17. Air outlet pipe; 18. Circulation fan; 19. Auxiliary fan; 20. Circulation through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0021] According to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, this embodiment provides a ventilation device for urban rail vehicles, which includes a ventilation housing 1, a grille 2, an automatic dust cleaning mechanism, a dust discharging mechanism, and a ventilation circulation mechanism. The ventilation housing 1 is symmetrically open at the top and bottom and is fixedly provided with a grille 2. The automatic dust cleaning mechanism includes a slide rail 3, a slider 4, a dust suction flat head 5, a dust collection box 6, a vacuum pump 7, and a driving mechanism. Slide rails 3 are symmetrically and fixedly arranged inside the ventilation housing 1 up and down, and two groups of slide rails 3 are symmetrically and fixedly arranged front and back. A slider 4 is slidably arranged between the slide rails 3, and a dust suction flat head 5 is fixedly arranged on the slider 4. A dust collection box 6 is fixedly arranged on one side outside the ventilation housing 1, and the dust collection box 6 is connected to the dust suction flat head 5 through a hose. A vacuum pump 7 is fixedly arranged at the bottom of the dust collection box 6. Driving mechanisms are symmetrically arranged inside the ventilation housing 1 up and down. A dust discharging mechanism is arranged on one side inside the dust collection box 6, and a ventilation circulation mechanism is arranged inside the ventilation housing 1. When dust cleaning is required, the vacuum pump 7 is started to pump air and suck dust, and the dust suction flat head 5 is attached to the grille 2 to suck dust, so as to suck the dust attached to the grille 2 into the dust collection box 6 to achieve automatic dust cleaning, solving the problem that maintenance staff need to disassemble and clean the grille 2 during maintenance.

[0022] The driving mechanism includes a screw rod 8, a first motor 9, and a threaded hole 10. Screw rods 8 are symmetrically and rotatably arranged inside the ventilation housing 1 up and down. First motors 9 are symmetrically and fixedly arranged outside the other side of the ventilation housing 1 up and down. A threaded hole 10 is correspondingly opened in the middle of the slider 4. The output end of the first motor 9 is drivingly connected to the screw rod 8, and the screw rod 8 is threadedly matched and passes through the threaded hole 10. When dust cleaning and suction are carried out, the first motor 9 drives the screw rod 8 to rotate, and the cooperation between the screw rod 8 and the threaded hole 10 is used to drive the slider 4 to slide along the slide rail 3 to suck and clean the dust attached to various parts of the grille 2.

[0023] The dust discharging mechanism includes a dust discharging auger 11, a second motor 12, a spring 13, and a sealing cover 14. A dust discharging auger 11 is vertically and rotatably arranged on one side inside the dust collection box 6. A second motor 12 is fixedly arranged on one side below the dust collection box 6. One side of the dust collection box 6 is open and springs 13 are symmetrically and fixedly arranged, and a sealing cover 14 is fixedly arranged between the springs 13. The output end of the second motor 12 is drivingly connected to the dust discharging auger 11, and the sealing cover 14 corresponds to the dust discharging auger 11 in the up and down position. When dust discharging is required, the second motor 12 is started to drive the dust discharging auger 11 to rotate to drive the dust to push open the sealing cover 14 and discharge, realizing automatic dust discharging, effectively prolonging the interval between maintenance and dust cleaning, and ensuring the ventilation efficiency.

[0024] The ventilation and circulation mechanism includes a ventilation chamber 15, an air inlet pipe 16, an air outlet pipe 17, a circulation fan 18, an auxiliary fan 19, and a circulation through-hole 20. A ventilation chamber 15 is fixedly arranged in the middle of the ventilation housing 1. An air inlet pipe 16 is provided on one side inside the ventilation chamber 15, and an air outlet pipe 17 is provided on the other side inside the ventilation chamber 15. A circulation fan 18 is fixedly arranged in the middle of the ventilation chamber 15. An auxiliary fan 19 is fixedly arranged above the air inlet pipe 16 and the air outlet pipe 17. Circulation through-holes 20 are respectively communicated with the air inlet pipe 16 and the air outlet pipe 17 on both sides of the circulation fan 18. The air inlet pipe 16 and the air outlet pipe 17 are open at the top and bottom. The two groups of auxiliary fans 19 rotate in opposite directions. The circulation fan 18 and the auxiliary fan 19 are electrically driven by a motor. When external circulation ventilation is required, the auxiliary fan 19 is started, and fresh air is blown into the carriage through the air inlet pipe 16, and the old air in the carriage is discharged through the air outlet pipe 17 to achieve ventilation circulation. When internal circulation is required, the circulation fan 18 rotates, sucks air through the air inlet pipe 16, and then introduces the air into the air outlet pipe 17 through the circulation through-hole 20 and blows it out again, while bringing in some external air at the same time.

[0025] The ventilation housing of the ventilation device for the urban rail vehicle is fixed to the inner top of the urban rail vehicle. When ventilation with the outside is required, the auxiliary fans in the air inlet pipe and the air outlet pipe are respectively driven by the motor to rotate in opposite directions. Fresh air from the outside is introduced into the carriage through the air inlet pipe, and the air in the carriage is discharged through the air outlet pipe, so as to form a stable air circulation between the carriage and the outside. When internal circulation is required, the auxiliary fans stop rotating, and the circulation fan is driven by the motor to rotate, so that the air is sucked into the air inlet pipe and then blown out again from the air outlet pipe through the circulation through-hole, while bringing in a part of the external air at the same time to achieve internal circulation. When dust cleaning is required, the first motor drives the screw to rotate reciprocally, cooperates with the threaded hole to drive the slider to slide reciprocally along the slide rail, the vacuum pump is started to pump air to generate negative pressure, and the dust on the grille is sucked into the dust collection box through the pipeline by the dust suction flat head while moving synchronously with the sliding. When ash discharge is required, the second motor drives the ash discharge auger to rotate, pushes the dust in the dust collection box to push open the sealing cover and discharge it. After the ash discharge is completed, the sealing cover is pulled back into the dust collection box by the elastic force of the spring.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A ventilation device for urban rail vehicles, characterized in that: The invention comprises a ventilation shell (1), a grille (2), an automatic dust cleaning mechanism, a dust discharge mechanism and a ventilation circulation mechanism. The ventilation shell (1) has an opening symmetrically arranged in the upper and lower parts and is fixedly provided with a grille (2). The automatic dust cleaning mechanism comprises a slide rail (3), a slider (4), a dust collecting flat head (5), a dust collecting box (6), a vacuum pump (7) and a driving mechanism. The ventilation shell (1) has a slide rail (3) symmetrically arranged in the upper and lower parts. Two groups of the slide rails (3) are symmetrically fixed in the front and rear parts. A slider (4) is slidably arranged between the slide rails (3). A dust collecting flat head (5) is fixedly arranged on the slider (4). A dust collecting box (6) is fixedly arranged on one side outside the ventilation shell (1). A hose is connected between the dust collecting flat head (5). A vacuum pump (7) is fixedly arranged at the bottom of the dust collecting box (6). The ventilation shell (1) has a driving mechanism symmetrically arranged in the upper and lower parts. A dust discharge mechanism is arranged on one side inside the dust collecting box (6). The ventilation shell (1) has a ventilation circulation mechanism.

2. A ventilation device for urban rail vehicles according to claim 1, characterized in that: The driving mechanism comprises a screw (8), a first motor (9) and a threaded hole (10); a screw (8) is symmetrically arranged in rotation up and down inside the ventilation shell (1); a first motor (9) is symmetrically fixed up and down outside the other side of the ventilation shell (1); and a threaded hole (10) is provided in the middle of the slider (4).

3. A ventilation device for urban rail vehicles according to claim 2, characterized in that: The output end of the first motor (9) is drivingly connected to the screw rod (8), and the screw rod (8) is threadedly fitted through the threaded hole (10).

4. The urban rail vehicle ventilation device according to claim 1, characterized in that: The ash discharge mechanism comprises an ash discharge auger (11), a second motor (12), a spring (13) and a sealing cover (14); an ash discharge auger (11) is vertically rotatably provided on one side of the dust box (6); a second motor (12) is fixedly provided on one side below the dust box (6); a spring (13) is symmetrically fixedly provided on one side of the dust box (6) and an opening is provided on one side of the dust box (6); a sealing cover (14) is fixedly provided between the springs (13).

5. The urban rail vehicle ventilation device according to claim 4, characterized in that: The output end of the second motor (12) is drivingly connected to the ash discharge auger (11), and the sealing cover (14) corresponds to the upper and lower positions of the ash discharge auger (11).

6. The urban rail vehicle ventilation device according to claim 1, characterized in that: The ventilation circulation mechanism comprises a ventilation chamber (15), an air inlet pipe (16), an air outlet pipe (17), a circulation fan (18), an auxiliary fan (19) and a circulation through hole (20); a ventilation chamber (15) is fixedly arranged in the middle of the ventilation shell (1); an air inlet pipe (16) is opened on one side of the ventilation chamber (15); an air outlet pipe (17) is opened on the other side of the ventilation chamber (15); a circulation fan (18) is fixedly arranged in the middle of the ventilation chamber (15); an auxiliary fan (19) is fixedly arranged above the air inlet pipe (16) and the air outlet pipe (17); and circulation through holes (20) are opened on both sides of the circulation fan (18) which are respectively connected to the air inlet pipe (16) and the air outlet pipe (17).

7. A ventilation device for urban rail vehicles according to claim 6, characterized in that: The air inlet pipe (16) and the air outlet pipe (17) are opened at the top and the bottom. The two groups of auxiliary fans (19) rotate in opposite directions. The circulation fan (18) and the auxiliary fan (19) are electrically driven by a motor.

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