An underground logistics pipeline transportation tool

Abstract

The invention discloses an underground logistics pipeline transportation tool, the bottom of which is provided with four wheels, two of which form a pair and are respectively clamped on two parallel tracks. The transportation tool comprises a shell, wheels, axles, doors, door motors, door motor seats, screw rods, screw rod seats, sliders, axles, axle boxes, damping springs, bogies, bogie connecting blocks, a car body, a driving motor, a driving motor seat, connecting blocks, axle end covers, a first gear, a second gear, a roller, a front baffle, a rear baffle, a moving block, a cam, a front baffle motor, a front baffle motor seat, brake shoes, brake shoe support seats, connecting rods, cylinder connecting blocks, cylinders and cylinder seats; the transportation tool can carry out logistics transportation on a special underground logistics track, solve the problem of cargo transportation from a city distribution center to a delivery center, improve logistics efficiency, shorten logistics time, and alleviate urban ground traffic congestion.

Description

Technical Field

[0001] The present invention relates to the technical field of underground transportation equipment, and in particular to an underground logistics pipeline transportation tool. Background Art

[0002] With traffic congestion, it is necessary to explore new and sustainable urban freight transportation modes.

[0003] The current concept of underground freight transportation is mainly realized by relying on subways. For example, the Chinese patent application with application number 201810097149.4 discloses an "urban underground logistics system", which includes underground logistics combined with underground passenger rails, and is a large-diameter underground freight transportation method.

[0004] This patent aims at small-diameter underground cargo transportation and designs an underground logistics pipeline transportation tool, hoping to solve the cargo transportation problem from urban distribution centers to delivery centers, improve logistics efficiency, shorten logistics time, and alleviate urban ground traffic congestion. Summary of the invention

[0005] The purpose of the present invention is to provide an underground logistics pipeline transportation tool, which can carry out logistics transportation on a dedicated underground logistics track, solve the problem of cargo transportation from urban distribution centers to delivery centers, improve logistics efficiency, shorten logistics time, and alleviate urban ground traffic congestion.

[0006] The embodiment of the present invention is achieved as follows:

[0007] The utility model discloses an underground logistics pipeline transportation tool, which is used on a track and includes a shell, wheels, axles, doors, a car body, a damping spring, a bogie, a bogie connecting block, an axle box, an axle end cover, a screw seat and a roller. The wheels are placed on the track for logistics transportation. The wheels are connected through the axles and both ends of the axles are connected to the axle box. The axle end cover seals both ends of the axle in the axle box. The axle box is connected to the bogie through the damping spring. The bogie is connected to the bottom of the car body through the bogie connecting block. The shell is provided with a door connected inside and outside and connected to the door. The shell is fixedly connected to the top of the car body and forms a space for accommodating goods. At least two screw seats in opposite positions are provided on the top of the car body. Both ends of the screw seat extend in the direction of entering and exiting the door. A plurality of connecting holes in opposite positions are respectively provided on the inner side of the screw seat. Both ends of the roller are inserted into the bearings placed in the connecting holes so that the plurality of rollers are parallel to each other. When the logistics are transported, the pallet loaded with goods is placed on the top of the roller and slides into the car body from the door. At this time, the roller is rotatable relative to the screw seat.

[0008] In a preferred embodiment of the present invention, a pair of damping springs and a pair of damping holes are respectively provided at both ends of the bogie, a connecting rod is protruding from the top of the axle box and the top end of the connecting rod passes through the damping hole to be connected to the bogie, the top of the connecting rod is fixed by a nut, and the damping spring is sleeved between the bogie and the axle box. The bogie bears the pressure of the car body and presses the damping spring in the vertical direction for buffering.

[0009] In a preferred embodiment of the present invention, the above-mentioned underground logistics pipeline transportation tool also includes a brake shoe, a brake shoe support seat, a connecting rod, a cylinder connecting block, a cylinder and a cylinder seat, one end of the brake shoe is set to an arc shape that matches the wheel surface of the wheel, the middle part of the brake shoe is hinged to the brake shoe support seat, the brake shoe support seat is fixed to the bogie, the two ends of the connecting rod are respectively hinged to the brake shoe and the cylinder connecting block, the cylinder connecting block is fixed to the piston rod of the cylinder, and the cylinder is fixed to the bogie through the cylinder seat.

[0010] In a preferred embodiment of the present invention, the middle portion of the bogie and the vehicle body are provided with through holes that are relatively positioned, and the bogie connecting block is provided with hinge holes that pass through the top and bottom, and bolts or pins are used to pass through the through holes and the hinge holes to sequentially connect the vehicle body, the bogie connecting block and the bogie, so that the bogie can rotate relative to the vehicle body.

[0011] In a preferred embodiment of the present invention, the above-mentioned underground logistics pipeline transportation tool also includes a driving motor, a driving motor seat and a connecting block. The axle is driven to rotate by the driving motor. The driving motor is fixed on the driving motor seat. The two ends of the driving motor seat are connected to connecting blocks. The connecting blocks fix the motor seat to the axle box.

[0012] In a preferred embodiment of the present invention, the above-mentioned underground logistics pipeline transportation tool also includes a first gear and a second gear, the first gear is arranged on the shaft of the driving motor, and the second gear is arranged on the axle, and the first gear and the second gear are respectively arranged as helical gears and mesh with each other.

[0013] In a preferred embodiment of the present invention, the above-mentioned underground logistics pipeline transportation tool also includes a slider and a screw rod, the two ends of the screw rod are respectively connected to the screw rod seats, the slider is provided with a sliding hole and is matched and meshed with the screw rod, the slider can slide on the screw rod relative to the screw rod, the slider is fixedly connected to the bottom of the car door, and the car door can slide relative to the car body through the slider.

[0014] In a preferred embodiment of the present invention, the above-mentioned underground logistics pipeline transportation tool also includes a front baffle, a rear baffle, a moving block, a cam, a front baffle and a front baffle motor seat. The front baffle can slide relative to the screw seat through the plate hole set in the screw seat, one end of the front baffle is fixed to the moving block, the rear baffle is fixed to the screw seat, the moving block is engaged with the cam, the cam is fixed to the front baffle motor, and the front baffle motor is fixed to the vehicle body through the front baffle motor seat. When the pallet loaded with goods enters the vehicle door, the front baffle motor rotates and drives the cam to rotate, thereby lifting the front baffle and limiting the position of the pallet to prevent the pallet from moving on the roller.

[0015] In a preferred embodiment of the present invention, the above-mentioned underground logistics pipeline transportation tool also includes a door motor and a door motor seat. The door motor seat is installed on the top edge of the vehicle body and is located at the bottom of the vehicle. The door motor is fixed to the door motor seat. One end of the screw rod passes through the screw rod seat and is fixed to the machine shaft of the door motor through a coupling.

[0016] In a preferred embodiment of the present invention, an upper door groove is provided at the top edge of the door opening of the above-mentioned shell, and a lower door groove is provided at the edge of the car body close to the car door. The top and bottom edges of the car door are respectively clamped in the upper door groove and the lower door groove, and the car door moves in the upper door groove and the lower door groove when sliding.

[0017] The beneficial effects of the present invention are:

[0018] The present invention drives the first gear and the second gear to mesh and rotate by a driving motor to rotate the axle, and the wheels move forward or backward on the track. The shock-absorbing spring is used to buffer between the bogie and the axle box, so that the vibration of the car body is reduced. The bogie is rotated horizontally to adjust the direction through the bogie connecting block. The door electric motor drives the lead screw to rotate so that the door slides between the upper door groove and the lower door groove. After the door is opened, the goods are placed on the roller and pushed or pulled to allow the goods to enter and exit smoothly. The transportation tool can carry out logistics transportation on a dedicated underground logistics track, solve the problem of cargo transportation from urban distribution centers to delivery centers, improve logistics efficiency, shorten logistics time, and alleviate urban ground traffic congestion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and should not be regarded as limiting the scope.

[0020] Figure 1 It is an external schematic diagram of the underground logistics pipeline transportation tool of the present invention;

[0021] Figure 2 It is a side view of the bottom structure of the underground logistics pipeline transportation tool of the present invention;

[0022] Figure 3 It is a front view of the bottom structure of the underground logistics pipeline transportation tool of the present invention;

[0023] Figure 4 A top view of the bottom structure of the underground logistics pipeline transportation tool of the present invention;

[0024] Figure 5 It is a partial view of the friction brake device of the underground logistics pipeline transportation tool of the present invention;

[0025] Figure 6 It is a partial enlarged view of the top view inside the vehicle body of the underground logistics pipeline transportation tool of the present invention;

[0026] Figure 7 It is a partial enlarged view of the side view inside the vehicle box of the underground logistics pipeline transportation tool of the present invention;

[0027] Icons: 1-track; 2-housing; 3-wheel; 4-door; 5-door upper groove; 6-door lower groove; 7-door motor; 8-door motor seat; 9-screw; 10-screw seat; 11-slider; 12-axle; 13-axle box; 14-shock-absorbing spring; 15-bogie; 16-bogie connecting block; 17-car body; 18-drive motor; 19-drive motor seat; 20-connecting block; 21-axle end cover; 22-first gear; 23-second gear; 24-roller; 25-front baffle; 26-rear baffle; 27-moving block; 28-cam; 29 front baffle motor; 30-front baffle motor seat; 31-brake shoe; 32-brake shoe support seat; 33-connecting rod; 34-cylinder connecting block; 35-cylinder; 36-cylinder seat. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] First embodiment

[0031] Please refer to Figure 1The present embodiment provides an underground logistics pipeline transportation tool, which runs on a track 1, the door lower groove 6 is fixed to the vehicle body 17, the door upper groove 5 is fixed to the outer shell 2, the outer shell 2 is fixed to the bogie 15 through the connecting block 20, the upper and middle parts of the bogie 15 are hinged to the vehicle body 17 through the bogie connecting block 16 and bolts, a group of damping springs 14 consists of two, the upper end of the damping spring 14 is fixed to the lower part of one end of the bogie 15, and the lower end is fixed to the top of both ends of the axle box 13, and the upper end of the axle box 13 forms a sliding connection with one end of the bogie 15. The wheels 3 are fixed at both ends of the axle 12, and the two ends of the axle 12 are hinged to the middle of the axle box 13 through bearings. The axle end cover 21 is fixed to the axle box 13. The second gear 23 and the first gear 22 are both helical gears. The second gear 23 is fixed to the right middle of the axle 12, and the second gear 23 meshes with the first gear 22. The first gear 22 is fixed to the shaft of the drive motor 18, and the drive motor 18 is fixed to the drive motor seat 19. The drive motor seat 19 is provided with connecting blocks 20 at both ends, and the motor seat is fixed to the axle box 13 through the connecting blocks 20. The screw seat 10 is fixed to the car box body 17 through bolts, and the two ends of the screw 9 are hinged to the screw seat 10 through bearings. One end of the screw 9 is fixed to the door motor 7 through a coupling, and the other end is meshed with the slider 11. The door motor 7 is fixed to the car box body 17 through the door motor seat 8, and the slider 11 is fixed to the car door 4. A group of rollers 24 is eight, and the two ends of the rollers 24 are hinged to the screw seat 10 through bearings.

[0032] Please refer to Figure 2The bottom of the transport vehicle has four wheels 3, two wheels 3 form a pair, which are respectively stuck on two parallel tracks 1. The transport vehicle includes a shell 2, wheels 3, axles 12, doors 4, door motors 7, door motor seats 8, screw rods 9, screw rod seats 10, sliders 11, axles 12, axle boxes 13, damping springs 14, bogies 15, bogie connecting blocks 16, car bodies 17, drive motors 18, drive motor seats 19, connecting blocks 20, axle end covers 21, first gears 22, second gears 23 and rollers 24; the wheels 3 are placed on the tracks 1 for logistics transportation, the car body 17 moves back and forth on the tracks 1 through the wheels 3, the car body 17 is the structure of the transport vehicle for carrying goods, the shell 2 is fixedly connected to the top of the car body 17 and forms a space for accommodating goods, and the goods are placed on a pallet, which has a plane size of a Chinese standard pallet, i.e., 1200mm×1000mm, and the space can accommodate two standard pallets (the size of the Chinese standard pallet comes from the national standard GB / T 37106-2018 "Pallet Design Guidelines for Pallet Unitized Logistics Systems"), the outer shell 2 is provided with a doorway connected inside and outside and connected to the car door 4, the top edge of the doorway provided on the outer shell 2 is provided with a door upper groove 5, and the edge of the car box 17 close to the car door 4 is provided with a door lower groove 6, the top and bottom edges of the car door 4 are respectively stuck in the door upper groove 5 and the door lower groove 6, when the car door 4 slides, it moves in the door upper groove 5 and the door lower groove 6, wherein the door upper groove 5 and the door lower groove 6 are respectively in the shape of strips with recessed sliding grooves, the bottom edge of the outer shell 2 and the top edge of the car box 17 are welded and fixed as a whole, and four screw rod seats 10 are provided on the top of the car box 17 in opposite positions, the first and fourth screw rod seats 10 are respectively located at the two ends of the doorway where the car door 4 is located, the second and third screw rod seats 10 are respectively located in the middle of the car box 17 and close to the first and The second screw seat 10 is positioned relative and spaced apart, and the third and fourth screw seats 10 are positioned relative and spaced apart. The screw seat 10 is provided with a through hole and is fixed to the top of the vehicle box 17 with screws. The two ends of the screw seat 10 extend in the direction of entering and exiting the vehicle door 4. The inner side of the screw seat 10 is respectively provided with a plurality of connecting holes in relative positions. The two ends of the roller 24 are connected to the bearings placed in the connecting holes, so that the eight rollers 24 are parallel to each other and parallel to the direction of the pallet entering and exiting. When the logistics is transported, the goods are placed on the top of the roller 24 and slide from the vehicle door 4 into the vehicle box 17. At this time, the roller 24 can rotate relative to the screw seat 10; the two ends of the screw rod 9 are respectively connected and inserted into the rod hole provided in the screw seat 10, and the rod hole is located near the door. The slider 11 is provided with a sliding hole and matches and meshes with the screw rod 9. The slider 11 can slide on the screw rod 9 relative to the screw rod 9;The door motor seat 8 is fixedly mounted on the top edge of the vehicle box 17 by screws and is located at the bottom of the vehicle. The door motor 7 is inserted into the groove built into the door motor seat 8 and fixed. One end of the screw rod 9 passes through the screw rod seat 10 and is fixed to the shaft of the door motor 7 through a coupling. The door motor 7 drives the screw rod 9 to rotate, thereby driving the slider 11 to slide along the direction of the screw rod 9. The slider 11 is fixedly connected to the bottom of the vehicle door 4 by screws. The vehicle door 4 can slide relative to the vehicle box 17 through the slider 11. When sliding, the vehicle door 4 always moves in the upper door groove 5 and the lower door groove 6. ;

[0033] Please refer to Figure 3 and Figure 4 The wheel 3 is connected through the axle 12, and the two ends of the axle 12 are connected with bearings, which are placed in the axle box 13, and the axle end cover 21 closes the two ends of the axle 12 in the axle box 13. The axle end cover 21 is provided with a threaded edge, and the axle box 13 is provided with an opening through which one end of the axle 12 passes and is threadedly connected and fixed with the axle end cover 21. The axle box 13 has axial holes that clamp the two ends of the axle 12. The wheel 3 can rotate relative to the axle box 13 through the axle 12, and the axle 12 is driven to rotate by the drive motor 18. The drive motor 18 is fixed to the top of the drive motor seat 19 and enables The two ends of the driving motor seat 19 are fixed with screws, and connecting blocks 20 are welded. The two connecting blocks 20 are respectively provided with four through holes, and the motor seat is fixed to the axle box 13 by screws. The first gear 22 is provided on the shaft of the driving motor 18, and the second gear 23 is provided on the axle 12. The first gear 22 and the second gear 23 are located on the same plane. The first gear 22 and the second gear 23 are respectively provided as helical gears and mesh with each other. Through the transmission of the gears, the driving motor 18 drives the wheel 3 to rotate; the axle box 13 is connected to the bogie 15 through the damping spring 14, and the damping spring 1 The top and bottom ends of the bogie 15 and the axle box 13 are respectively against the bogie 15 and the axle box 13. A pair of vibration-damping holes are respectively provided at both ends of the bogie 15. A connecting rod is convexly provided on the top of the axle box 13, and the top end of the connecting rod passes through the vibration-damping hole and is connected to the bogie 15 to form a sliding connection. The axle box 13 can slide relative to the bogie 15. The top of the connecting rod is locked by a nut. The vibration-damping spring 14 is sleeved between the bogie 15 and the axle box 13, so that the bogie 15 can buffer vibration up and down relative to the axle box 13 in the vertical direction. A pair of vibration-damping springs 14 are connected at both ends of the bogie 15, which play the role of damping. The bogie 15 has a strong buffering effect. It bears the pressure of the car body 17 and presses the shock-absorbing spring 14 in the vertical direction for buffering. The bogie 15 is connected to the bottom of the car body 17 through the bogie connecting block 16. The middle part of the bogie 15 and the car body 17 are provided with through holes in relative positions. The bogie connecting block 16 is provided with hinge holes running through the top and the bottom. Bolts are used to pass through the through holes and the hinge holes to connect the car body 17, the bogie connecting block 16 and the bogie 15 in turn, so that the bogie 15 can rotate relative to the car body 17. This arrangement facilitates the logistics transportation vehicle to turn on the track 1.

[0034] Please refer to Figure 5 The underground logistics pipeline transportation tool also includes a component for decelerating and stopping movement, which includes a brake shoe 31, a brake shoe support seat 32, a connecting rod 33, a cylinder connecting block 34, a cylinder 35 and a cylinder seat 36. One end of the brake shoe 31 is set to an arc shape that matches the wheel surface of the wheel. The middle part of the brake shoe 31 is rod-shaped and has a hinge hole. The bottom end of the brake shoe support seat 32 is provided with a hinge hole. The middle part of the brake shoe 31 is hingedly connected to the brake shoe support seat 32 using a pin. The top end of the brake shoe support seat 32 is fixed to the bogie. Both ends of the connecting rod 33 are respectively provided with hinge holes, and the hinge holes set at one end of the brake shoe 31 and the hinge holes set at one end of the cylinder connecting block 34 are connected and fixed by pins. One end of the piston rod of the cylinder 35 is inserted into the hinge hole set at the cylinder connecting block 34. The built-in socket is fixed as a whole, the cylinder 35 has a through hole, and a through hole is set at the edge of the cylinder seat 36. The cylinder 35 is fixed to the cylinder seat 36 by screws passing through the threaded holes. The cylinder seat 36 is welded and fixed to the side of the bogie. When the piston rod of the cylinder 35 is extended, the cylinder connecting block 34 pushes the connecting rod 33, thereby driving the brake shoe 31 to rotate. One end of the brake shoe 31 contacts the wheel surface of the wheel for braking, which slows down the transport vehicle and stops it from moving. When the transport vehicle is in a high-speed motion state, the electric brake (at this time, the drive motor 18 is converted into a generator) is used to slow down the transport vehicle and provide regenerative braking force to the transport vehicle. At the same time, the brake shoe 31 contacts the wheel surface of the wheel 3 to provide friction braking force to the transport vehicle; please refer to Figure 6 and Figure 7 The underground logistics pipeline transportation tool also includes a component for lifting the pallet of the goods, which includes a front baffle 25, a rear baffle 26, a moving block 27, a cam 28, the front baffle 25 and a front baffle motor seat 30. The screw seat is provided with a plate hole that can slide in the vertical direction. The front baffle 25 can slide relative to the screw seat through the plate hole. One end of the front baffle 25 and the moving block 27 are respectively provided with connecting through holes. Bolts are used to fix the front baffle 25 and the moving block 27 through the through holes. The rear baffle 26 has a through hole and is fixed to the top of the screw seat with screws. The moving block 27 and The cam 28 is engaged, and the cam 28 is fixed to the shaft of the front baffle motor 29. Driven by the shaft of the front baffle motor 29, the cam 28 rotates and drives the moving block 27 to move up and down in the vertical direction. The front baffle motor 29 is fixed with bolts through the threaded holes set in the front baffle motor seat 30. The front baffle motor seat 30 is fixed to the vehicle body by screws. When the pallet loaded with goods enters the vehicle door, the front baffle motor 29 rotates and drives the cam 28 to rotate, thereby lifting the front baffle 25 and limiting the position of the pallet to prevent the pallet from moving on the roller.

[0035] To summarize, in the embodiment of the present invention, the axle rotates by driving the first gear and the second gear to mesh and rotate, and the wheels move forward or backward on the track. When the transport vehicle needs to slow down, the driving motor is converted into a generator to provide regenerative braking force to the transport vehicle. When the regenerative braking force is insufficient, friction braking force is provided to the transport vehicle in the form of contact between the brake shoe and the wheel. The shock-absorbing spring is used to buffer between the bogie and the axle box, so that the vibration of the car body is reduced to protect the transported goods. The bogie is rotated horizontally through the bogie connecting block to adjust the direction. The door motor drives the screw rod to rotate so that the door slides between the upper door groove and the lower door groove. After the door is opened, the goods are placed on a pallet and placed on a roller, and pushed or pulled to allow the goods to enter and exit smoothly. The transport vehicle can carry out logistics transportation on a dedicated underground logistics track, solve the problem of cargo transportation from an urban distribution center (such as a subway station) to a distribution center, improve logistics efficiency, shorten logistics time, and alleviate urban ground traffic congestion.

[0036] This specification describes examples of embodiments of the present invention, and does not mean that these embodiments illustrate and describe all possible forms of the present invention. Those of ordinary skill in the art will appreciate that the embodiments described herein are to help readers understand the principles of the present invention, and should be understood that the protection scope of the present invention is not limited to such special statements and embodiments. Those of ordinary skill in the art can make various other various specific variations and combinations that do not deviate from the essence of the present invention based on these technical revelations disclosed by the present invention, and these variations and combinations are still within the protection scope of the present invention.

Claims

1. An underground logistics pipeline transportation tool, characterized in that: The underground logistics pipeline transportation tool is used on the track, and includes: a shell, wheels, axles, doors, a car body, a damping spring, a bogie, a bogie connecting block, an axle box, an axle end cover, a screw seat and a roller. The wheel is placed on the track for logistics transportation. The wheel is connected by the axle and the two ends of the axle are connected to the axle box. The axle end cover seals the two ends of the axle in the axle box. The axle box is connected to the bogie through a damping spring. The bogie is connected to the bottom of the car body through the bogie connecting block. The shell is provided with a door connected inside and outside and connected to the door. The shell is fixedly connected to the top of the car body and forms a space for accommodating goods. At least two screw seats in opposite positions are provided on the top of the car body. The two ends of the screw seat extend in the direction of entering and exiting the door. The inner side of the screw seat is respectively provided with a plurality of connecting holes in opposite positions. The two ends of the roller are inserted into the bearings placed in the connecting holes, so that the plurality of rollers are parallel to each other. When the logistics is transported, the pallet loaded with goods is placed on the top of the roller and slides into the car body from the door. At this time, the roller is rotatable relative to the screw seat. A pair of damping springs and a pair of damping holes are respectively provided at both ends of the bogie, a connecting rod is protruding from the top of the axle box, and the top end of the connecting rod passes through the damping hole and is connected to the bogie, the top of the connecting rod is fixed by a nut, the damping spring is sleeved between the bogie and the axle box, and the bogie bears the pressure of the car body and presses the damping spring to buffer in the vertical direction; The underground logistics pipeline transportation tool also includes a brake shoe, a brake shoe support seat, a connecting rod, a cylinder connection block, a cylinder and a cylinder seat, one end of the brake shoe is set to an arc shape matching the wheel surface of the wheel, the middle part of the brake shoe is hinged to the brake shoe support seat, the brake shoe support seat is fixed to the bogie, the two ends of the connecting rod are respectively hinged to the brake shoe and the cylinder connection block, the cylinder connection block is fixed to the piston rod of the cylinder, and the cylinder is fixed to the bogie through the cylinder seat; The underground logistics pipeline transportation tool also includes a slider and a screw rod, the two ends of the screw rod are respectively connected to the screw rod seats, the slider is provided with a sliding hole and is matched and meshed with the screw rod, the slider is slidable on the screw rod relative to the screw rod, the slider is fixedly connected to the bottom of the vehicle door, and the vehicle door is slidable relative to the vehicle body through the slider; The underground logistics pipeline transportation tool also includes a front baffle, a rear baffle, a moving block, a cam, a front baffle and a front baffle motor seat. The front baffle can slide relative to the screw seat through a plate hole set in the screw seat. One end of the front baffle is fixed to the moving block, the rear baffle is fixed to the screw seat, the moving block is engaged with the cam, the cam is fixed to the front baffle motor, and the front baffle motor is fixed to the vehicle body through the front baffle motor seat. When a pallet loaded with goods enters the vehicle door, the front baffle motor rotates and drives the cam to rotate, thereby lifting the front baffle and limiting the position of the pallet to prevent the pallet from moving on the roller.

2. An underground logistics pipeline transportation tool according to claim 1, characterized in that: The middle part of the bogie and the car body are provided with through holes in opposite positions, and the bogie connecting block is provided with hinge holes running through the top and bottom. Bolts or pins are used to pass through the through holes and the hinge holes to connect the car body, the bogie connecting block and the bogie in sequence, so that the bogie can rotate relative to the car body.

3. The underground logistics pipeline transportation tool according to claim 1, characterized in that: The underground logistics pipeline transportation tool also includes a driving motor, a driving motor seat and a connecting block. The axle is rotated by the driving motor. The driving motor is fixed to the driving motor seat. Both ends of the driving motor seat are connected to connecting blocks. The connecting blocks fix the motor seat to the axle box.

4. An underground logistics pipeline transportation tool according to claim 3, characterized in that: The underground logistics pipeline transportation tool also includes a first gear and a second gear, the first gear is arranged on the shaft of the driving motor, the second gear is arranged on the axle, and the first gear and the second gear are respectively arranged as helical gears and mesh with each other.

5. The underground logistics pipeline transportation tool according to claim 1, characterized in that: The underground logistics pipeline transportation tool also includes a door motor and a door motor seat. The door motor seat is installed on the top edge of the vehicle body and located at the bottom of the vehicle. The door motor is fixed to the door motor seat. One end of the screw rod passes through the screw rod seat and is fixed to the shaft of the door motor through a coupling.

6. An underground logistics pipeline transportation tool according to claim 5, characterized in that: The top edge of the door opening of the shell is provided with an upper door groove, and the edge of the car body close to the door is provided with a lower door groove. The top and bottom edges of the door are respectively clamped in the upper door groove and the lower door groove, and the door moves in the upper door groove and the lower door groove when sliding.

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