Rail box type logistics transportation device

Abstract

The rail box type logistics transportation device comprises a transportation vehicle, a box body is assembled at the top of the transportation vehicle, the transportation vehicle comprises a bottom plate, and moving wheels are symmetrically arranged on the two sides of the bottom plate along the center; a first buffer plate is arranged at one end in the box body, a transmission assembly is arranged on the side, close to the box body, of the first buffer plate, the transmission assembly is arranged in the side wall of one end of the box body, air cavities are formed in the side walls of the two sides of the box body, piston plates are elastically connected into the air cavities, and when collision occurs, the piston plates move downwards under the action of corresponding springs; then air in the air cavity is conveyed into the conveying plate through the air pipe and then conveyed into the pushing piece through the conveying plate, the pushing piece is promoted to expand and extend, then the first buffering plate moves towards the materials in the box body and makes contact with the materials, and therefore force opposite to inertia force of the materials is applied to the materials to buffer the materials; and the problem of damage caused by collision with the inner wall of the box body due to movement is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of rail box-type transportation, and in particular to a rail box-type logistics transportation device. Background Art

[0002] The rail box-type logistics transport device is an efficient automated logistics system, which is widely used in factories, warehouses, hospitals, libraries and other places. The rail box-type logistics transport device realizes the handling and storage of goods by running on a fixed track, thereby improving the efficiency and accuracy of logistics.

[0003] Chinese Patent Publication No.: CN221233729U discloses a rail box-type logistics transportation device, including a rail body and a transport vehicle, and also includes a material storage box.

[0004] In the existing rail box-type logistics transport devices, if the transport device on the track may accelerate or stop due to a failure of the drive, braking system or other mechanical components, the risk of collision with other transport devices is increased. When the transport device collides, the impact force may cause the material in the box to collide with the transport device, causing the material to collide with the box body, which may easily cause the material to be damaged due to the collision.

[0005] Therefore, it is necessary to provide a rail box-type logistics transportation device to solve the above technical problems. Summary of the invention

[0006] The purpose of the present invention is to provide a rail box type logistics transportation device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a rail box-type logistics transport device, comprising a transport vehicle, a box body is assembled on the top of the transport vehicle, guide rails are arranged on both sides of the bottom of the transport vehicle, the transport vehicle comprises a bottom plate, and movable wheels are symmetrically arranged along the center on both sides of the bottom plate; a first buffer plate is arranged at one end of the box body, a transmission assembly is arranged on the side of the first buffer plate close to the box body, the transmission assembly is arranged in a side wall at one end of the box body, air cavities are arranged in the side walls on both sides of the box body, a piston plate is elastically connected in the air cavity, and when the piston plate moves downward, the transmission assembly is driven to move in the direction of the first buffer plate.

[0008] As a further solution of the present invention: the transmission assembly includes a pushing member; the pushing member is arranged in the side wall of one end of the box body close to the first buffer plate, the end of the pushing member away from the box body passes through the side wall of the box body and is fixedly connected to the first buffer plate, the end of the pushing member away from the first buffer plate is fixedly connected to a conveying plate, and the end of the conveying plate away from the pushing member is connected to the air cavity.

[0009] As a further solution of the present invention: an active cavity is arranged on the top of the first buffer plate, a baffle is elastically connected in the active cavity, and the active cavity is communicated with the pushing member.

[0010] As a further solution of the present invention: a pull rope is fixedly provided at the top center of the piston plate, a positioning rod is fixedly provided at the top center of the air cavity, and an auxiliary mechanism is provided at one end of the pull rope away from the top of the piston plate and bypasses the positioning rod.

[0011] As a further solution of the present invention: the auxiliary mechanism includes a winding shaft; the end of the pull rope away from the piston plate is wound and fixed on the winding shaft, rollers are fixedly provided at both ends of the winding shaft, a bracket is rotatably provided at the end of the roller away from the winding shaft, a support plate is fixedly provided at the top center of the end of the bracket away from the roller, and the roller cooperates with the moving wheel for transmission.

[0012] As a further solution of the present invention: the side walls on both sides of one end of the box body close to the first buffer plate are provided with connecting grooves, and the bottom end of the connecting groove passes through the side wall of the transport vehicle, and a support plate slidably adapted to the connecting groove is fixedly provided at the top center of the bracket.

[0013] As a further solution of the present invention: a notch connected to the air cavity is provided on the side of the connecting groove close to the piston plate, a cross plate slidably connected to the notch is fixedly provided on the side of the support plate opposite to the air cavity, the top of the support plate is slidably matched with a limiting plate, the end of the limiting plate away from the support plate slides into the air cavity, and the limiting plate is elastically connected to the side wall of the box, and the end of the pull rope away from the piston plate passes through the side wall of the box and is fixedly connected to the winding shaft through the connecting groove.

[0014] As a further solution of the present invention: a groove is provided on the top of the piston plate, a limiting groove is provided on the bottom of one end of the groove opposite to the first buffer plate, a telescopic plate is slidably fitted in the groove, a matching block slidably fitted with the limiting groove is provided at the bottom of the telescopic plate, a trigger rod is fixedly provided on the top of the telescopic plate, the trigger rod is elastically slidably provided in the side wall of the box body, and the end of the trigger rod away from the telescopic plate slides out of the end of the box body.

[0015] As a further solution of the present invention: a mounting groove is provided at the bottom of the telescopic plate, the matching block is arranged in the mounting groove, and a first inclined surface is provided at one end of the matching block close to the limiting groove, a fixing groove is provided in the middle of the side wall of the matching block, a connecting plate that is slidably adapted to the fixing groove is fixedly provided in the mounting groove, and a spring is provided between the connecting plate and the fixing groove.

[0016] As a further solution of the present invention: a second buffer plate is provided at one end of the box body relatively far away from the first buffer plate through a transmission assembly, and a blocking block is fixedly provided at the bottom of the piston plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: when a collision occurs, the piston plate moves downward under the action of the corresponding spring, and then the gas in the air cavity is transported to the conveying plate through the air pipe, and then transported to the pushing member through the conveying plate, causing the pushing member to expand and extend, and then the first buffer plate moves toward the material in the box and contacts it, thereby applying a force opposite to the inertia force of the material to the material to buffer the material, avoiding the problem of damage caused by the movement and collision with the inner wall of the box. At the same time, when the baffle extends out of the top of the first buffer plate, the material can be blocked to avoid the height of the material loaded in the box being slightly higher than the height of the box. When the transport device collides, the top layer of material may flip over and fall to the outside of the box due to inertia. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure of the transport vehicle in the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of the air cavity in the present invention.

[0021] Figure 4 It is a structural schematic diagram of the transmission component in the present invention.

[0022] Figure 5 It is a structural schematic diagram of the baffle in the present invention.

[0023] Figure 6 It is a schematic structural diagram of the second buffer plate in the present invention.

[0024] Figure 7 For the present invention Figure 1 Schematic diagram of the structure at A in the middle.

[0025] Figure 8 It is a structural schematic diagram of the piston plate in the present invention.

[0026] Fig. 9 It is a structural schematic diagram of the auxiliary mechanism in the present invention.

[0027] Fig.10 It is a schematic diagram of the structure of the limiting groove in the present invention.

[0028] Fig.11 For the present invention Fig.10 Schematic diagram of the structure at B in the figure.

[0029] In the figure: 1. guide rail; 2. box body; 3. transport vehicle; 4. air cavity; 5. auxiliary mechanism; 51. bracket; 52. roller; 53. winding shaft; 54. support plate; 55. cross plate; 6. piston plate; 7. first buffer plate; 71. baffle plate; 72. movable cavity; 8. trigger rod; 9. second buffer plate; 10. pull rope; 11. limit plate; 12. telescopic plate; 13. blocking block; 14. positioning rod; 15. groove; 151. limit groove; 16. pushing member; 17. air pipe; 18. conveying plate; 19. matching block; 20. fixing groove; 21. first inclined surface. DETAILED DESCRIPTION

[0030] See also Figure 1-Figure 11 In an embodiment of the present invention, a rail box-type logistics transportation device includes a transport vehicle 3, a box body 2 is assembled on the top of the transport vehicle 3, and guide rails 1 for guiding the movement of the transport vehicle 3 are arranged on both sides of the bottom of the transport vehicle 3. When in use, the box body 2 is used to hold materials, and then the transport vehicle 3 is started to move on the guide rails 1, so as to complete the transportation of materials. A first buffer plate 7 is arranged at one end of the box body 2, and a transmission assembly is arranged on the side of the first buffer plate 7 close to the box body 2. The transmission assembly is arranged in the side wall of one end of the box body 2, and an air cavity 4 is arranged in the side walls of both sides of the box body 2. A piston plate 6 is elastically connected in the air cavity 4. When the piston plate 6 moves downward, the gas in the air cavity 4 is squeezed to drive the transmission assembly to move in the direction of the first buffer plate 7.

[0031] It should be noted that: for the sake of convenience of description, the box body 2 and the transport vehicle 3 are collectively referred to as the transport device, the piston plate 6 is sealed and slidably connected to the air cavity 4, and a spring is arranged between the bottom of the piston plate 6 and the air cavity 4, and the first buffer plate 7 is arranged at one end of the forward direction of the box body 2. In this way, when the transport device on the guide rail 1 collides, the transmission assembly drives the first buffer plate 7 to move in the direction opposite to the forward direction of the box body 2, so that it can be in full and close contact with the material in the box body 2, and offset the inertial force of the material due to the collision with the box body 2, thereby avoiding the problem of damage caused by displacement and collision of the material in the box body 2.

[0032] Preferably, the transport vehicle 3 includes a base plate, with moving wheels symmetrically arranged along the center on both sides of the base plate, a motor for driving the moving wheels to rotate is arranged in the base plate, and the box body 2 is assembled on the base plate. When the material needs to be transported, the material is placed in the box body 2, and then the motor is started to drive the moving wheels to rotate. The rotation of the moving wheels enables the box body 2 and the transport vehicle 3 to move on the guide rail 1, thereby realizing the transportation of the material, and multiple groups of transport vehicles 3 can be arranged on the guide rail 1 to improve the transportation efficiency. The guide rail 1, the box body 2, and the transport vehicle 3 are all common rail box-type transport devices in the prior art. The detailed related structures and working principles will not be elaborated here.

[0033] See also Figure 1-Figure 6Preferably, the transmission assembly includes a pushing member 16; the pushing member 16 is arranged in the side wall of one end of the box body 2 close to the first buffer plate 7, and the end of the pushing member 16 away from the box body 2 passes through the side wall of the box body 2 and is fixedly connected to the first buffer plate 7, and multiple groups of pushing members 16 are arranged in a square array in the side wall of the box body 2, and the end of the pushing member 16 away from the first buffer plate 7 is fixedly connected to a conveying plate 18, and the end of the conveying plate 18 away from the pushing member 16 is connected to the air cavity 4. It should be noted that: the pushing member 16 is arranged in one end of the box body 2 in the forward direction, the conveying plate 18 is a plate with a square hollow structure, the bottom end of the conveying plate 18 is connected to the air cavity 4 through the air pipe 17, and the pushing member 16 is connected to the conveying plate 18, that is, the pushing member 16 is connected to the air cavity 4 through the conveying plate 18 and the air pipe 17, and the pushing member 16 is an elastic telescopic tube structure.

[0034] During actual use, in the initial state, the first buffer plate 7 is in a state of being in contact with the end of the inner wall of the box body 2 due to the elastic action of the pusher 16 itself, the pusher 16 is in a contracted state, and the piston plate 6 is at the top position in the air cavity 4; when a collision occurs, the piston plate 6 moves downward under the action of the corresponding spring, and then the gas in the air cavity 4 is transported to the conveying plate 18 through the air pipe 17, and then transported to the pusher 16 through the conveying plate 18, causing the pusher 16 to expand and extend, and then allowing the first buffer plate 7 to move toward the material in the box body 2 and contact it, thereby applying a force opposite to the inertial force exerted on the material, that is, buffering the material, avoiding the problem of damage caused by its movement and collision with the inner wall of the box body 2.

[0035] Furthermore, preferably, an active cavity 72 is provided on the top of the first buffer plate 7, and a baffle 71 is elastically connected to the active cavity 72. The active cavity 72 is communicated with the pushing member 16. In actual use, when gas enters the pushing member 16, it will also enter the active cavity 72 to drive the baffle 71 to move upward and extend out of the top of the first buffer plate 7. After the baffle 71 extends out of the top of the first buffer plate 7, the pushing member 16 expands and extends to push the first buffer plate 7 and the baffle 71 to move. In this way, the baffle 71 can block the material to avoid the problem that the height of the material loaded in the box body 2 is slightly higher than the height of the box body 2. When the transportation device collides, the top layer of material may flip over and fall to the outside of the box body 2 due to inertia.

[0036] See also Figure 2-Figure 3 , Figure 7Preferably, in order to allow the piston plate 6 to automatically reset after moving downward, preferably, a pull rope 10 is fixedly provided at the top center of the piston plate 6, and a positioning rod 14 is fixedly provided at the top center of the air cavity 4. An auxiliary mechanism 5 is provided at the end of the pull rope 10 away from the top of the piston plate 6, which bypasses the positioning rod 14. In this way, when the auxiliary mechanism 5 reels the pull rope 10, the pull rope 10 between the piston plate 6 and the positioning rod 14 is in a vertical state through the action of the positioning rod 14, thereby better pulling the piston plate 6 to move in the air cavity 4.

[0037] See also Figure 2 , Figure 7-Figure 9 Preferably, the auxiliary mechanism 5 includes a winding shaft 53; the end of the pull rope 10 away from the piston plate 6 is wound and fixed on the winding shaft 53, and rollers 52 are fixedly arranged at both ends of the winding shaft 53. A bracket 51 is rotatably arranged at the end of the roller 52 away from the winding shaft 53, and a support plate 54 is fixedly arranged at the top center of the end of the bracket 51 away from the roller 52. The roller 52 is matched with the moving wheel on the transport vehicle 3. When the moving wheel rotates, the moving wheel drives the roller 52 to rotate through the rolling friction between the moving wheel and the roller 52. The rotation of the roller 52 causes the winding shaft 53 to rotate, and the rotation of the winding shaft 53 realizes the winding of the pull rope 10.

[0038] Further, preferably, the side walls on both sides of one end of the box body 2 close to the first buffer plate 7 are provided with connecting grooves, the bottom ends of the connecting grooves pass through the side walls of the transport vehicle 3, a support plate 54 slidably adapted to the connecting grooves is fixedly provided at the top center of the bracket 51, a notch communicating with the air cavity 4 is provided on the side of the connecting groove close to the piston plate 6, a cross plate 55 slidably connected to the notch is fixedly provided on the side of the support plate 54 opposite to the air cavity 4, the cross plate 55 and the notch are elastically connected by a spring, the top end of the support plate 54 is slidably matched with the limit plate 11, the end of the limit plate 11 away from the support plate 54 slides into the air cavity 4, and the limit plate 11 is connected to the side of the box body 2 The wall is elastically connected, and the support plate 54 is sealed and slidably connected to the side of the connecting groove relative to the air cavity 4 through the cooperation of the notch and the cross plate 55, so as to prevent the gas in the air cavity 4 from being transported to the connecting groove through the notch, and the notch is arranged at a position close to the bottom end of the air cavity 4, and the end of the cross plate 55 away from the support plate 54 extends into the air cavity 4, and the end of the limiting plate 11 protruding from the inner wall of the air cavity 4 is provided with a second inclined surface facing the piston plate 6, and the limiting plate 11 is sealed and slidably connected to the side wall of the box body 2, and the limiting plate 11 is arranged in an "L" structure, and the end of the pull rope 10 away from the piston plate 6 passes through the side wall of the box body 2 and is fixedly connected to the winding shaft 53 through the connecting groove.

[0039] In actual use, in the initial state, the piston plate 6 is in the position corresponding to the limit plate 11 in the air cavity 4, at this time, the top of the support plate 54 is higher than the top of the limit plate 11, the cross plate 55 is in the upper end position in the notch, and the roller 52 is separated from the moving wheel, and the roller 52 is in an unrestricted state; when the transport device collides, the piston plate 6 moves downward so that the gas in the air cavity 4 drives the first buffer plate 7 to move toward the material through the transmission assembly and the baffle 71 extends out of the top of the first buffer plate 7, and the piston plate 6 moves downward to contact with the cross plate 55 and push the cross plate 55 to move downward. In this process, the pull rope 10 is dispersed from the winding shaft 53, and when the cross plate 55 moves downward, it drives the support plate 54 to move downward, and the support plate 54 moves downward through the bracket 51, so that the roller 52 contacts and cooperates with the moving wheel again, and because the collision occurs, the transport device is in a stopped state at this time. After the support plate 54 moves downward, its top height is lower than The bottom height of the limit plate 11 is large, so the limit plate 11 will elastically reset and cooperate with the top limit of the support plate 54, limiting the relative position of the support plate 54, so that the roller 52 maintains a close contact with the moving wheel. When the transport device resumes its normal driving state from the stopped state after the collision, the rotation of the moving wheel drives the roller 52 to rotate, and the rotation of the roller 52 forms a winding work for the pull rope 10 through the winding shaft 53. Subsequently, the piston plate 6 moves upward and resets under the action of the pull rope 10. When the piston plate 6 moves to the bottom position of the limit plate 11, the winding shaft 53 continues to wind the pull rope 10, thereby causing the piston plate 6 to move upward and cooperate with the second inclined surface of the limit plate 11 at the end, prompting the limit plate 11 to move away from the piston plate 6 and separate from the top of the support plate 54. Subsequently, the support plate 54 moves upward and resets under the action of the spring corresponding to the cross plate 55, thereby separating the roller 52 from the moving wheel, so as to wait for the next use.

[0040] See also Figure 9-11Preferably, in order to prevent the piston plate 6 from moving any further after it moves to the position corresponding to the limit plate 11, and the piston plate 6 does not move downward during normal driving of the transport device, preferably, a groove 15 is provided on the top of the piston plate 6, and two groups of grooves 15 are provided in a horizontal array on the top of the piston plate 6. A limit groove 151 is provided at the bottom of one end of the groove 15 relative to the first buffer plate 7, and a telescopic plate 12 is slidably fitted in the groove 15. A matching block 19 slidably fitted with the limit groove 151 is provided at the bottom of the telescopic plate 12. A trigger rod 8 is fixedly provided on the top of the telescopic plate 12, and the trigger rod 8 is elastically slidably arranged in the side wall of the box body 2, and the end of the trigger rod 8 away from the telescopic plate 12 slides out of the end of the box body 2, and the telescopic plate 12 slides and fits with the side wall of the box body 2. In actual use When the transport device collides, the trigger rod 8 will first contact the object in front and be pushed in the direction of the groove 15. The movement of the trigger rod 8 will cause the telescopic plate 12 to move synchronously, thereby causing the matching block 19 to separate from the limiting groove 151. Subsequently, the piston plate 6 moves downward under the action of the corresponding spring, squeezing the gas in the air cavity 4 into the transmission assembly. When the piston plate 6 moves upward, the piston plate 6 will limit the relative position of the piston plate 6 through the matching of the groove 15 and the matching block 19.

[0041] Further, preferably, a mounting groove is provided at the bottom of the telescopic plate 12, the matching block 19 is provided in the mounting groove, and a first inclined surface 21 is provided at one end of the matching block 19 close to the limiting groove 151, a fixing groove 20 is provided in the middle of the side wall of the matching block 19, a connecting plate slidably adapted to the fixing groove 20 is fixedly provided in the mounting groove, a spring is provided between the connecting plate and the fixing groove 20, and the matching block 19 is always subjected to a force toward the limiting groove 151 through the setting of the spring; in actual use, when the piston plate 6 moves upward, since the trigger rod 8 is in the initial state, the matching block 19 corresponds to the groove 15 close to the limiting groove On one end side of 151, when the piston plate 6 moves to the position of the matching block 19, the matching block 19 will move away from the limiting groove 151 through the first inclined surface 21, and then when the matching block 19 corresponds to the limiting groove 151, the matching block 19 moves to reset and extends into the limiting groove 151, thereby limiting the relative position of the piston plate 6. At this time, the top of the piston plate 6 slides with the second inclined surface of the limiting plate 11, and then the roller 52 continues to rotate, so the piston plate 6 will also move upward for a certain distance, thereby causing the limiting plate 11 to move away from the piston plate 6 to release the limiting of the support plate 54.

[0042] See also Figure 1-Figure 3 , Figure 6Preferably, the end of the box body 2 relatively far away from the first buffer plate 7 is provided with a second buffer plate 9 through a transmission assembly, and a blocking block 13 is fixedly provided at the bottom of the piston plate 6. In actual use, a circular hole is provided on the blocking block 13, and the diameter of the circular hole is smaller than one-third of the diameter of the air pipe 17 in the transmission assembly, and the blocking block 13 is sealingly and slidably connected with the inner wall of the air cavity 4. The number and position of the blocking blocks 13 correspond to the connection between the air pipe 17 and the air cavity 4 in the transmission assembly. The second buffer plate 9 is slidably connected to the end side wall of the box body 2 through a sliding rod. In this way, when the transport device collides, the piston plate 6 moves downward, which will cause the gas in the air cavity 4 to enter the transmission assembly at both ends of the box body 2, and then the second buffer plate 9 and the first buffer plate 9 are connected through the transmission assembly. The punch plate 7 and the baffle plate 71 move, and the second buffer plate 9 moves away from the end of the box body 2 under the action of the transmission assembly, thereby providing a buffer for the rear of the box body 2 to avoid possible collisions with subsequent transportation devices. After the piston plate 6 moves downward, the block 13 will block the connection between the air pipe 17 and the air cavity 4. The circular hole will make the first buffer plate 7 and the second buffer plate 9, after being hit, the gas in the transmission assemblies corresponding to the two respectively will be transported to the air cavity 4 through the circular holes, so that the first buffer plate 7 and the second buffer plate 9 can better provide a buffering effect. On the other hand, it also avoids the problem of gas fixation in the pusher 16 in the transmission assembly, which may cause the pusher 16 to be damaged after being subjected to a large impact force.

Claims

1. A rail box-type logistics transport device, comprising a transport vehicle, a box body is assembled on the top of the transport vehicle, guide rails are arranged on both sides of the bottom of the transport vehicle, the transport vehicle comprises a bottom plate, and moving wheels are symmetrically arranged on both sides of the bottom plate along the center; characterized in that: A first buffer plate is provided at one end of the box body, a transmission assembly is provided on the side of the first buffer plate close to the box body, the transmission assembly is provided in a side wall at one end of the box body, air cavities are provided in the side walls on both sides of the box body, a piston plate is elastically connected in the air cavity, and when the piston plate moves downward, the transmission assembly is driven to move in the direction of the first buffer plate.

2. A rail box-type logistics transport device according to claim 1, characterized in that: The transmission assembly includes a pushing member; the pushing member is arranged in the side wall of one end of the box body close to the first buffer plate, the end of the pushing member away from the box body passes through the side wall of the box body and is fixedly connected to the first buffer plate, the end of the pushing member away from the first buffer plate is fixedly connected to a conveying plate, and the end of the conveying plate away from the pushing member is connected to the air cavity.

3. A rail box-type logistics transport device according to claim 2, characterized in that: An active cavity is arranged on the top of the first buffer plate, a baffle is elastically connected in the active cavity, and the active cavity is communicated with the pushing member.

4. A rail box-type logistics transport device according to claim 1, characterized in that: A pull rope is fixedly arranged at the center of the top of the piston plate, a positioning rod is fixedly arranged at the center of the top of the air cavity, and an auxiliary mechanism is arranged at one end of the pull rope away from the top of the piston plate and bypasses the positioning rod.

5. A rail box-type logistics transport device according to claim 4, characterized in that: The auxiliary mechanism includes a winding shaft; the end of the pull rope away from the piston plate is wound and fixed on the winding shaft, rollers are fixedly provided at both ends of the winding shaft, a bracket is rotatably provided at the end of the roller away from the winding shaft, a support plate is fixedly provided at the top center of the end of the bracket away from the roller, and the roller cooperates with the moving wheel in transmission.

6. A rail box-type logistics transport device according to claim 5, characterized in that: The side walls of the box body at one end close to the first buffer plate are provided with connecting grooves, and the bottom end of the connecting groove passes through the side wall of the transport vehicle. A supporting plate slidably adapted to the connecting groove is fixedly provided at the top center of the bracket.

7. A rail box-type logistics transport device according to claim 6, characterized in that: A notch connected to the air cavity is provided on the side of the connecting groove close to the piston plate, and a cross plate slidably connected to the notch is fixedly provided on the side of the support plate opposite to the air cavity. The top end of the support plate slides with a limit plate, and the end of the limit plate away from the support plate slides into the air cavity, and the limit plate is elastically connected to the side wall of the box body, and the end of the pull rope away from the piston plate passes through the side wall of the box body and is fixedly connected to the winding shaft through the connecting groove.

8. A rail box-type logistics transport device according to claim 7, characterized in that: A groove is provided on the top of the piston plate, and a limiting groove is provided on the bottom of one end of the groove opposite to the first buffer plate. A telescopic plate is slidably fitted in the groove, and a matching block slidably fitted with the limiting groove is provided at the bottom of the telescopic plate. A trigger rod is fixedly provided on the top of the telescopic plate, and the trigger rod is elastically slidably provided in the side wall of the box body, and one end of the trigger rod away from the telescopic plate slides out of the end of the box body.

9. A rail box-type logistics transport device according to claim 8, characterized in that: A mounting groove is provided at the bottom of the telescopic plate, the matching block is arranged in the mounting groove, and a first inclined surface is provided at one end of the matching block close to the limiting groove, a fixing groove is provided in the middle of the side wall of the matching block, a connecting plate slidably adapted to the fixing groove is fixedly provided in the mounting groove, and a spring is provided between the connecting plate and the fixing groove.

10. The rail box-type logistics transport device according to claim 1, characterized in that: The second buffer plate is arranged at one end of the box body relatively far away from the first buffer plate through a transmission assembly, and a blocking block is fixedly arranged at the bottom of the piston plate.

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