Sand box for rail traffic tool

Abstract

The utility model provides a sand box for a rail traffic tool. The sand box for the rail traffic tool comprises an outer box body, an inner box body is arranged in the outer box body, a sand inlet is formed in the top of the inner box body, the sand inlet penetrates through the outer box body and extends to the top of the outer box body, an inlet cover is arranged on the sand inlet, and an air heater is fixedly installed on the right side of the outer box body; the top of the air heater is in threaded connection with an air blowing pipe, the other end of the air blowing pipe penetrates through the outer box and extends into the outer box to be in threaded connection with an air storage box, a plurality of hot air pipes are arranged on the left side of the air storage box, and a ventilation pipe is arranged at the top of the outer box. According to the sand box for the rail traffic tool, moisture-proof treatment can be carried out on the interior of the sand box, and the problem that normal use of the sand box is affected due to the fact that the adhesion of sand is increased due to the fact that the interior of the sand box is affected with damp, and the discharging speed of the sand becomes slow is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transportation tools, in particular to a sand box used for rail transportation tools. Background Art

[0002] Rail transit refers to a type of transportation vehicle or transportation system in which operating vehicles need to travel on specific tracks. The most typical rail transit is a railway system consisting of traditional trains and standard railways. With the diversified development of train and railway technology, rail transit has shown more and more types, not only covering long-distance land transportation, but also widely used in medium and short-distance urban public transportation. The sand box is an important component on freight mainline electric locomotives to ensure the safe operation of trains. When the train starts, climbs, goes downhill, and brakes in an emergency, huge friction is required between the wheels and the rails. At this time, the locomotive control system uses high-pressure air to open the sand box and use a sand spreader to spread the sand in the sand box on the rails to increase friction and adhesion, ensuring smooth starting and safe braking of the train.

[0003] Since locomotives need to run for a long time to travel to various regions, it is inevitable to encounter rainy weather during the train's travel. Being in a rainy environment for a long time can easily cause the inside of the sand box to get damp, which will increase the adhesion of the sand inside the sand box, and then cause the fluidity of the sand to decrease, and the sand discharge speed will be slow, thus affecting the normal use of the sand box.

[0004] Therefore, it is necessary to provide a sand box for rail transportation vehicles to solve the above technical problems. Utility Model Content

[0005] The utility model provides a sand box for rail transportation tools, which solves the problem that the sand inside the sand box is damp, thereby increasing the adhesion of the sand and slowing down the discharge speed of the sand, thus affecting the normal use of the sand box.

[0006] In order to solve the above technical problems, the utility model provides a sand box for rail transit vehicles, including: an outer box, an inner box is arranged inside the outer box, a sand inlet is arranged on the top of the inner box, the sand inlet passes through the outer box and extends to the top of the outer box, an inlet cover is arranged on the sand inlet, a hot air blower is fixedly installed on the right side of the outer box, a blast pipe is threadedly connected to the top of the hot air blower, the other end of the blast pipe passes through the outer box and extends to the inner part of the outer box, where it is threadedly connected to an air storage box, a plurality of hot air pipes are arranged on the left side of the air storage box, a ventilation pipe is arranged on the top of the outer box, a hollow plate is fixedly connected to the inside of the ventilation pipe, and a desiccant is placed on the hollow plate.

[0007] Preferably, the bottom of the inner box is connected to a sand outlet pipe, the other end of the sand outlet pipe passes through the outer box and extends to the bottom of the outer box and is threadedly connected to a three-way pipe, an electromagnetic valve is provided on the sand outlet pipe, the bottom of the three-way pipe is threadedly connected to a sand spreading pipe, and the other end of the sand spreading pipe is provided with a nozzle.

[0008] Preferably, a motor is fixedly mounted on the top of the inner box, and an output shaft of the motor passes through the inner box and extends to the interior of the inner box and is fixedly connected to a rotating shaft, on which stirring blades are fixedly connected.

[0009] Preferably, a plurality of ventilation holes are provided on the top of the inner box.

[0010] Preferably, an air pump is fixedly installed at the bottom of the outer box, an air pipe is threadedly connected to the left side of the air pump, and the other end of the air pipe is threadedly connected to the right side of the three-way pipe.

[0011] Preferably, transparent observation windows are provided on the front sides of the outer box and the inner box.

[0012] Preferably, the inner bottom surface of the inner box is designed to be funnel-shaped.

[0013] Compared with the related art, the sand box for rail transportation tools provided by the utility model has the following advantages:

[0014] Beneficial effects:

[0015] The utility model provides a sand box for rail transit vehicles, which sends the generated hot air to an air storage box through a hot air blower through a blast pipe, blows the hot air out through the hot air pipe, and then discharges the humid gas inside the sand box through a ventilation pipe. When the hot air blower is not started, the desiccant in the ventilation port can dry the gas entering the sand box, thereby realizing moisture-proofing of the sand box, and effectively solving the problem that the adhesion of the sand inside the sand box increases due to moisture, causing the discharge speed of the sand to become slow, thereby affecting the normal use of the sand box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural schematic diagram of a preferred embodiment of a sand box for rail transportation provided by the utility model;

[0017] Figure 2 The figure is a schematic diagram of the overall structure of a sand box used for rail transportation vehicles;

[0018] Figure 3 Schematic diagram of the internal structure of the inner box;

[0019] Figure 4 is a schematic diagram of the internal structure of the ventilation duct;

[0020] Figure 5 for Figure 2 An enlarged schematic diagram of part A is shown.

[0021] Numbers in the figure: 1. Outer box, 2. Inner box, 3. Sand inlet, 4. Inlet cover, 5. Hot air blower, 6. Blower pipe, 7. Air storage box, 8. Hot air pipe, 9. Ventilation pipe, 10. Hollow plate, 11. Desiccant, 12. Sand outlet pipe, 13. Three-way pipe, 14. Solenoid valve, 15. Sand spreading pipe, 16. Nozzle, 17. Motor, 18. Rotating shaft, 19. Stirring blade, 20. Ventilation hole, 21. Air pump, 22. Air pipe, 23. Transparent observation window. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of a sand box for rail transportation provided by the utility model; Figure 2 The figure is a schematic diagram of the overall structure of a sand box used for rail transportation vehicles; Figure 3 Schematic diagram of the internal structure of the inner box; Figure 4 is a schematic diagram of the internal structure of the ventilation duct; Figure 5 for Figure 2 The enlarged schematic diagram of part A is shown. The sand box for rail transit vehicles includes: an outer box 1, an inner box 2 is arranged inside the outer box 1, a sand inlet 3 is arranged on the top of the inner box 2, the sand inlet 3 penetrates the outer box 1 and extends to the top of the outer box 1, an inlet cover 4 is arranged on the sand inlet 3, a hot air blower 5 is fixedly installed on the right side of the outer box 1, a blast pipe 6 is threadedly connected to the top of the hot air blower 5, the other end of the blast pipe 6 penetrates the outer box 1 and extends to the inner thread of the outer box 1 and is connected to the air storage box 7, a plurality of hot air pipes 8 are arranged on the left side of the air storage box 7, which are used to keep the inside of the sand box dry and prevent the sand in the sand box from reducing its fluidity due to moisture, thereby affecting the normal use of the sand box, a ventilation pipe 9 is arranged on the top of the outer box 1, which is used to discharge the humid gas inside the sand box, a hollow plate 10 is fixedly connected to the inside of the ventilation pipe 9, and a desiccant 11 is placed on the hollow plate 10, which is used to dry the gas entering the sand box when the hot air blower 5 is not started.

[0024] The bottom of the inner box 2 is connected with a sand outlet pipe 12, the other end of the sand outlet pipe 12 passes through the outer box 1 and extends to the bottom of the outer box 1 and is threadedly connected with a three-way pipe 13, a solenoid valve 14 is provided on the sand outlet pipe 12, the bottom of the three-way pipe 13 is threadedly connected with a sand spreading pipe 15, the other end of the sand spreading pipe 15 is provided with a nozzle 16 for discharging the sand inside the sand box and spreading it on the track, so as to increase the friction adhesion between the wheel and the track and ensure the smooth starting and safe braking of the locomotive.

[0025] A motor 17 is fixedly installed on the top of the inner box 2. The output shaft of the motor 17 passes through the inner box 2 and extends to the inside of the inner box 2 and is fixedly connected to a rotating shaft 18. The rotating shaft 18 is fixedly connected to a stirring blade 19 for increasing the fluidity of the sand inside the sand box so that the sand can enter the sand outlet pipe 12 more smoothly.

[0026] A plurality of vent holes 20 are provided on the top of the inner box 2 to ensure the stability of the internal air pressure of the inner box 2 when the sand in the inner box 2 is discharged.

[0027] An air pump 21 is fixedly installed at the bottom of the outer box 1, and an air pipe 22 is threadedly connected to the left side of the air pump 21. The other end of the air pipe 22 is threadedly connected to the right side of the three-way pipe 13, which is used to speed up the discharge speed of the sand inside the sand box and save the starting and braking time of the locomotive.

[0028] The front of the outer box 1 and the inner box 2 are both provided with transparent observation windows 23, which are convenient for the staff to observe the amount of sand in the sand box and replenish the sand inside the sand box in time.

[0029] The inner bottom surface of the inner box 2 is designed to be funnel-shaped to prevent the sand from sinking to the bottom of the inner box 2 and being unable to be discharged.

[0030] The working principle of the sand box for rail transportation provided by the utility model is as follows:

[0031] First, observe the transparent observation window 23 to see whether there is enough sand in the sand box. If there is not enough sand, open the inlet cover 4 and pour the sand to be replenished from the sand inlet 3 into the inner box 2. Before the locomotive starts and brakes, turn on the motor 17 and the solenoid valve 14. The output shaft of the motor 17 rotates to drive the rotating shaft 18 to rotate, and then drives the stirring blade 19 to rotate to enhance the fluidity of the sand. The sand will be discharged from the nozzle 16 through the sand outlet pipe 12, the three-way pipe 13 and the sand spreading pipe 15 and sprinkled on the track to increase the friction and adhesion between the wheel and the track. Then turn on the air pump 21. The air pump 21 increases the sand spreading speed through the air line pipe 22. When it is rainy, turn on the hot air blower 5. The hot air produced by the hot air blower 5 is sent to the air storage box 7 through the blast pipe 6, and then the hot air is blown out through the hot air pipe 8. Then, the humid gas inside the sand box is discharged by setting the ventilation pipe 9. When the hot air blower 5 is not started, the desiccant 11 in the ventilation pipe 9 can dry the gas entering the sand box.

[0032] Compared with the related art, the sand box for rail transportation tools provided by the utility model has the following advantages:

[0033] Beneficial effects:

[0034] By setting up a hot air blower 5, the produced hot air is sent to the air storage box 7 through the blast pipe 6, and then the hot air is blown out through the hot air pipe 8, and then the humid gas inside the sand box is discharged by setting up a ventilation pipe 9. When the hot air blower 5 is not started, the desiccant 11 in the ventilation pipe 9 can dry the gas entering the sand box, thereby realizing moisture-proofing of the interior of the sand box, and effectively solving the problem that the adhesion of the sand inside the sand box increases due to moisture, causing the discharge speed of the sand to become slow, thereby affecting the normal use of the sand box.

[0035] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sand box for rail transportation, characterized in that: include: An outer box, an inner box is arranged inside the outer box, a sand inlet is arranged on the top of the inner box, the sand inlet passes through the outer box and extends to the top of the outer box, an inlet cover is arranged on the sand inlet, a hot air blower is fixedly installed on the right side of the outer box, a blast pipe is threadedly connected to the top of the hot air blower, the other end of the blast pipe passes through the outer box and extends to the inner part of the outer box where it is threadedly connected to an air storage box, a plurality of hot air pipes are arranged on the left side of the air storage box, a ventilation pipe is arranged on the top of the outer box, a hollow plate is fixedly connected to the inside of the ventilation pipe, and a desiccant is placed on the hollow plate.

2. The flask for rail vehicles according to claim 1, characterized in that: The bottom of the inner box is connected to a sand outlet pipe, the other end of the sand outlet pipe passes through the outer box and extends to the bottom of the outer box and is threadedly connected to a three-way pipe, an electromagnetic valve is provided on the sand outlet pipe, the bottom of the three-way pipe is threadedly connected to a sand spreading pipe, and the other end of the sand spreading pipe is provided with a nozzle.

3. The flask for rail vehicles according to claim 1, characterized in that: A motor is fixedly installed on the top of the inner box, and the output shaft of the motor passes through the inner box and extends to the inside of the inner box and is fixedly connected to a rotating shaft, and a stirring blade is fixedly connected to the rotating shaft.

4. The flask for rail vehicles according to claim 1, characterized in that: A plurality of ventilation holes are provided on the top of the inner box.

5. The flask for rail vehicles according to claim 1, characterized in that: An air pump is fixedly installed at the bottom of the outer box, an air line pipe is threadedly connected to the left side of the air pump, and the other end of the air line pipe is threadedly connected to the right side of the three-way pipe.

6. The flask for rail vehicles according to claim 1, characterized in that: The front sides of the outer box and the inner box are both provided with transparent observation windows.

7. The sand box for rail vehicles according to claim 1, characterized in that: The inner bottom surface of the inner box is designed to be funnel-shaped.

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