Folding movable box body capable of being pulled forwards and backwards

Abstract

The invention discloses a foldable movable box capable of being pulled forwards and backwards, and belongs to the technical field of logistics transportation. Comprising a main compartment body, an auxiliary compartment body, a girder, first left and right bottom plates, second left and right bottom plates, left and right side wall fans, front and rear wall fans, a mountain tip structure, a large roof, a middle roof, a main compartment body jacking oil cylinder, a main compartment body outer leaf plate oil cylinder, a main compartment body bottom plate oil cylinder, an auxiliary compartment body jacking oil cylinder, an auxiliary compartment body outer leaf plate oil cylinder, an auxiliary compartment body bottom plate oil cylinder, a wall fan driving oil cylinder and a mountain tip oil cylinder. Provided are a rail car hydraulic motor and a rail body. In the invention, the girder rail car hydraulic motor drives the main girder and the auxiliary girder to translate along the rails and extend out of the main carriage body through the pulleys, so that the space use of the carriage body is expanded, the occupied space is greatly optimized in the process, the scene adaptability and flexibility of equipment are improved, and the problem of difficulty in transition of a traditional folding carriage body is solved; and the trafficability and the transportation efficiency are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of logistics and transportation, and in particular relates to a foldable mobile box that can be pulled forward and backward. Background Art

[0002] Classification of existing foldable mobile carriages: Based on the way of raising the roof, they can be divided into two categories: fixed-height foldable carriages and lifting-roof foldable carriages. The fixed-height foldable carriage can only unfold or fold its side walls and side top walls, and the overall height is fixed; the lifting-roof foldable carriage can both unfold or fold its side walls and side top walls, and the height of the top can also be raised or lowered; based on the number of leaf connections, they can be divided into triple-body foldable carriages and quintuple-body foldable carriages; the triple-body foldable carriage, in which the bottom, one bottom plate leaf, two bottom plate leaves, and wall leaves are connected in pairs in sequence through hinges, and a connecting rod mechanism is used to realize the unfolding and folding actions; the quintuple-body foldable carriage, in which the bottom, one bottom plate leaf, two bottom plate leaves, wall leaves, two top leaves, one top leaf and middle top are connected in pairs in sequence through hinges, and a connecting rod mechanism is used to realize the unfolding and folding actions.

[0003] The existing foldable box technology has the following major disadvantages: First, the existing design only supports expansion in the width direction and cannot be expanded in length, resulting in large space occupation and poor flexibility. Secondly, due to structural limitations, transfer transportation is difficult, and the passability in complex terrain is poor, which increases transportation costs and difficulty. Furthermore, the existing equipment has high site requirements and poor adaptability, and cannot be efficiently used in a variety of scenarios. In addition, the space utilization rate is low, and the efficiency of the box is not fully utilized. Finally, the drive system structure is complex, which increases the difficulty of maintenance and the failure rate, affecting the stability and reliability of the equipment.

[0004] Based on this, the present invention designs a foldable movable box that can be pulled forward and backward to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problems of large space occupation, high difficulty in transfer and transportation, and poor trafficability of the existing foldable boxes, and to propose a foldable mobile box that can be pulled forward and backward.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A foldable mobile box that can be pulled forward and backward includes a main compartment body, a secondary compartment body, a beam, one left and right bottom plate fan, two left and right bottom plate fans, left and right side wall fans, front and rear wall fans, a mountain peak structure, a large roof, a middle roof, a main compartment top-lifting cylinder, a main compartment outer page plate cylinder, a main compartment bottom plate cylinder, a secondary compartment top-lifting cylinder, a secondary compartment outer page plate cylinder, a secondary compartment bottom plate cylinder, a wall fan driving cylinder, a mountain peak cylinder, a rail car hydraulic motor and a rail body. The main compartment body and the secondary compartment body are slidably connected between the beams, the beams are fixed on the top of the main compartment body, and the left and right bottom plates are fixed on the top of the main compartment body. One fan is connected to the bottom of the main compartment body by a hinge, the left and right bottom plate fans are connected to the bottom of the auxiliary compartment body by hinges, the left and right side wall fans are respectively hinged on both sides of the main compartment body and the auxiliary compartment body by pins, the front and rear wall fans are hinged to the front and rear ends of the main compartment body and the auxiliary compartment body by pins, the mountain peak structure is hinged to the outside of the big top by pins, the track body is slidably connected in one fan of the left and right bottom plates, two guide rail leg cylinders are fixedly connected under the track body, the track car hydraulic motor is rotatably connected to a pulley, and the pulley is slidably connected to the outside of the track body.

[0007] As a further description of the above technical solution: The main compartment lifting oil cylinder is hinged in the main compartment body through a pin shaft, and the main compartment lifting oil cylinder is overlapped under the large roof.

[0008] As a further description of the above technical solution: The main compartment outer page plate oil cylinder is hinged in the main compartment body through a pin shaft, and the main compartment outer page plate oil cylinder is fixedly connected to the left and right side wall fans.

[0009] As a further description of the above technical solution: The main compartment bottom plate oil cylinder is fixedly connected to the main compartment body through a hinge, and the main compartment bottom plate oil cylinder is fixedly connected to one of the left and right bottom plates through a hinge.

[0010] As a further description of the above technical solution: The auxiliary compartment lifting oil cylinder is hinged in the auxiliary compartment body through a pin shaft.

[0011] As a further description of the above technical solution: The auxiliary compartment outer page plate oil cylinder is hinged in the auxiliary compartment body through a pin shaft, and the auxiliary compartment outer page plate oil cylinder is fixedly connected to the left and right side wall fans.

[0012] As a further description of the above technical solution: One end of the auxiliary compartment bottom plate oil cylinder is hinged in the auxiliary compartment body through a pin shaft, and the other end of the auxiliary compartment bottom plate oil cylinder is hinged in the left and right bottom plate leaves through a pin shaft.

[0013] As a further description of the above technical solution: One end of the wall fan driving oil cylinder is fixedly connected in the front and rear wall fans, and the other end of the wall fan driving oil cylinder is hinged outside the auxiliary compartment body through a pin shaft.

[0014] As a further description of the above technical solution: One end of the top oil cylinder is fixedly connected in the middle top, and the other end of the top oil cylinder is hinged in the main compartment body through a pin shaft.

[0015] As a further description of the above technical solution: The rail vehicle hydraulic motor is fixedly connected in the main beam, and the rail vehicle hydraulic motor is fixedly connected to the tracks of the main beam and the auxiliary beam in the main compartment body.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, during the unfolding process, the hydraulic system ensures the smooth unfolding of the main compartment body, auxiliary compartment body, outer leaf plate, bottom plate and wall leafs by precisely controlling each cylinder. In particular, the wall leaf drive cylinder and the peak cylinder flip over to enable the front and rear wall leaves to flip over 180 degrees smoothly, and the peak structure flips over 180 degrees to complete the top lifting. These flipping actions ensure that the compartment can effectively transition from a folded state to a fully unfolded state. The main beam and auxiliary beam are driven by the hydraulic motor of the beam rail car through the pulley to translate along the track and extend out of the main compartment body, thereby expanding the space utilization of the compartment. This process greatly optimizes the floor space, improves the scene adaptability and flexibility of the equipment, solves the problem of difficult transfer of traditional folding compartments, and improves passability and transportation efficiency.

[0017] 2. In the present invention, during the folding process, the hydraulic system controls the action of each cylinder, starts the wall fan driving cylinder and the mountain top cylinder in turn, and the front and rear wall fans are flipped 180 degrees and then retracted to their original positions, while the mountain top structure is flipped 180 degrees and lowered to the initial position. These flipping actions ensure that the various parts of the car body can be efficiently and compactly recovered to the folded state, while maintaining good coordination between the various components to avoid misalignment or jamming. The main car body bottom plate cylinder flips and retracts the bottom plate and side wall fans to ensure that the bottom plate and the wall fans can be stably fixed after completing the 90-degree flipping. The outer leaf plate cylinder of the auxiliary car body is also retracted by flipping 90 degrees and pushed back into place by the auxiliary car body outer leaf plate cylinder, making the car body structure more compact. In this process, the hydraulic motor of the beam rail car further drives the main beam and the auxiliary beam to reset, ensuring that the axial recovery action of the car body is successfully completed. This process not only greatly saves storage space, but also further improves the operating efficiency of the equipment, ensures the safety and reliability of the entire folding process, and significantly reduces the maintenance cost caused by the complex structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a three-dimensional structural diagram of a foldable movable box that can be pulled forward and backward proposed by the present invention; Figure 2 This is a schematic diagram of the structure of a forward and backward pull-out foldable mobile box body after the main body is folded; Figure 3 This is a schematic diagram of a top view of a foldable movable box that can be pulled forward and backward proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a foldable mobile box body that can be pulled forward and backward and is viewed from above after the main compartment body and the auxiliary compartment body are folded; Figure 5 This is a left-side structural schematic diagram of a foldable movable box that can be pulled forward and backward proposed by the present invention; Figure 6 This is a schematic diagram of the front view of a foldable movable box that can be pulled forward and backward proposed by the present invention; Figure 7 This is a three-dimensional structural diagram of a foldable movable box track body that can be pulled forward and backward proposed by the present invention; Figure 8 This is a three-dimensional structural diagram of a foldable movable box guide rail outrigger oil cylinder that can be pulled forward and backward and proposed by the present invention; Legend: 1. Main compartment body; 2. Auxiliary compartment body; 3. Main beam; 4. One fan on the left and right bottom plates; 5. Two fans on the left and right bottom plates; 6. Left and right side wall fans; 7. Front and rear wall fans; 8. Peak structure; 9. Large roof; 10. Middle roof; 11. Main compartment top-lifting cylinder; 12. Main compartment outer panel cylinder; 13. Main compartment bottom plate cylinder; 14. Auxiliary compartment top-lifting cylinder; 15. Auxiliary compartment outer panel cylinder; 16. Auxiliary compartment bottom plate cylinder; 17. Wall fan drive cylinder; 18. Peak cylinder; 19. Rail car hydraulic motor; 20. Track body; 21. Pulley; 22. Guide rail leg cylinder. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0020] See also Figure 1-Figure 8The present invention provides a technical solution: a foldable mobile box that can be pulled forward and backward, including a main compartment body 1, a sub-compartment body 2, a beam 3, a left and right bottom plate fan 4, two left and right bottom plate fans 5, left and right side wall fans 6, front and rear wall fans 7, a mountain peak structure 8, a large roof 9, a middle roof 10, a main compartment top lifting cylinder 11, a main compartment outer page plate cylinder 12, a main compartment bottom plate cylinder 13, a sub-compartment top lifting cylinder 14, a sub-compartment outer page plate cylinder 15, a sub-compartment bottom plate cylinder 16, a wall fan driving cylinder 17, a mountain top ... The main compartment body 1 and the auxiliary compartment body 2 are connected by sliding between the main beam 3, and the main beam 3 is driven by the hydraulic motor 19 of the rail car to slide, so that the auxiliary compartment body 2 can be extended or retracted from the main compartment. This design improves the space utilization of the box body, and is convenient for realizing a large range of expansion and folding in a limited space, which is suitable for different application scenarios. The beam 3 is fixed on the top of the main compartment body 1, and the left and right bottom panels 4 are connected to the bottom of the main compartment body 1 through hinges. This hinge connection method allows the bottom panel to be freely flipped, and the conversion from a vertical state to a horizontal state is more flexible. When unfolded, the bottom panel can form a ground support platform to increase the usable area of ​​the compartment; when folded, the bottom panel can be easily recovered and close to the bottom of the compartment, effectively saving storage space while ensuring safety and stability during transportation; The left and right bottom panels 5 are connected to the bottom of the auxiliary compartment body 2 by hinges. The design that the bottom panel two panels are connected to the bottom of the auxiliary compartment body 2 by hinges allows the bottom panel two panels to be turned over and unfolded synchronously with the movement of the auxiliary compartment body. This design ensures the stability and precise positioning of the bottom panel when the auxiliary compartment body is independently unfolded. At the same time, it can form a continuous support surface when combined with the main compartment body, greatly improving the strength and use efficiency of the overall compartment body. The left and right side wall fans 6 are respectively hinged on both sides of the main compartment body 1 and the auxiliary compartment body 2 through the pin shaft. Through the pin shaft hinge design, the left and right side wall fans 6 can automatically maintain a vertical state as the bottom plate is unfolded. This design cooperates with the bottom plate-wall fan connecting rod mechanism to reduce the complexity of the hydraulic system, while ensuring the positioning accuracy of the side wall fans, enhancing the overall sealing performance and stability of the compartment, especially having high wind resistance when used outdoors; The front and rear wall fans 7 are hinged to the front and rear ends of the main compartment body 1 and the auxiliary compartment body 2 through the pin shaft, and the peak structure 8 is hinged to the outside of the large roof 9 through the pin shaft. The design of the peak structure 8 being hinged to the outside of the large roof 9 facilitates the 180-degree flipping movement when it is unfolded and folded. Through the flexible connection of the pin shaft, the peak structure 8 can provide the top closure function for the compartment when unfolded, enhance the sealing and weather resistance of the compartment, and when folded, the peak structure 8 can be close to the top of the compartment, reduce the external space occupation, and facilitate storage and transportation; The track body 20 is slidably connected in a fan 4 of the left and right bottom plates. Two guide rail leg oil cylinders 22 are fixedly connected to the track body 20. The rail vehicle hydraulic motor 19 is externally rotatably connected to a pulley 21, and the pulley 21 is slidably connected to the outside of the track body 20.

[0021] The use of the track body 20 and the pulley 21 makes the extension of the sub-compartment body 2 smoother and more flexible. Different from the traditional folding structure, the use of this new track pulley method can effectively reduce space occupancy and improve the adaptability and flexibility of the equipment, especially the transportation capacity and site adaptability in complex environments. The setting of the track body 20 provides a precise path for structural extension, and the pulley 21 ensures the smoothness and efficiency of the extension process.

[0022] Specifically, Figure 1 As shown, the main compartment lifting cylinder 11 is hinged in the main compartment body 1 through a pin shaft, the main compartment lifting cylinder 11 is overlapped under the large roof 9, the main compartment outer page cylinder 12 is fixedly connected in the main compartment body 1, the main compartment bottom plate cylinder 13 is fixedly connected to the main compartment body 1 through a hinge, the main compartment bottom plate cylinder 13 is fixedly connected to the left and right bottom plate one leaf 4 through a hinge, and the main compartment bottom plate cylinder 13 is connected to the main compartment body 1 and the left and right bottom plate one leaf 4 through a hinge. Through this connection, the bottom plate cylinder can make the bottom plate translate or flip under the control of the hydraulic system. The advantage of this connection is that it provides a smooth and accurate unfolding and folding action of the bottom plate. The hinge connection method allows the bottom plate to move smoothly when unfolding, ensuring the matching accuracy of the bottom plate and the side wall, while keeping it tightly fixed when folded, optimizing space utilization and operating efficiency. The auxiliary compartment lifting cylinder 14 is hinged in the auxiliary compartment body 2 through a pin shaft, ensuring that the lifting and lowering operations on the top of the auxiliary compartment can be carried out smoothly. During the deployment process, the lifting cylinder drives the top of the auxiliary compartment to rise, thereby releasing more internal space and pushing the auxiliary compartment to further deploy. The advantage of this connection method is that it simplifies the lifting process and improves the ease of operation, while ensuring that the top of the auxiliary compartment is stably lifted and lowered, providing support for subsequent operations of other components.

[0023] Specifically, Figure 2-Figure 6 As shown, the auxiliary compartment outer page plate oil cylinder 15 is hinged in the auxiliary compartment body 2 through a pin shaft, and the auxiliary compartment outer page plate oil cylinder 15 is hinged on the auxiliary compartment body 2 and the left and right side wall fans 6 through a pin shaft. During the unfolding process, the oil cylinder drives the outer page plate to unfold and move in coordination with the wall fan. Through this connection, the auxiliary compartment outer page plate can be accurately and quickly unfolded to a preset angle under the control of the hydraulic oil cylinder, ensuring that the unfolding process of the auxiliary compartment body 2 is more stable and smooth. The advantage of this design is that it can effectively improve the flexibility of the compartment, ensure the coordinated action between various components, and reduce manual intervention during operation, thereby improving the automation level of the equipment. One end of the auxiliary compartment bottom plate oil cylinder 16 is hinged in the auxiliary compartment body 2 through a pin shaft, and the other end of the auxiliary compartment bottom plate oil cylinder 16 is hinged in the left and right bottom plate two leaves 5 through a pin shaft. One end of the wall fan driving oil cylinder 17 is fixedly connected in the front and rear wall leaves 7, and the other end of the wall fan driving oil cylinder 17 is hinged outside the auxiliary compartment body 2 through a pin shaft. One end of the wall fan driving oil cylinder 17 is fixedly connected in the front and rear wall leaves 7, and the other end is hinged outside the auxiliary compartment body 2 through a pin shaft. During the unfolding process, the oil cylinder controls the front and rear wall leaves 7 to flip to a predetermined position to ensure that the space of the compartment can be fully unfolded. The advantage of this connection method is that the oil cylinder can accurately control the flipping angle of the wall leaves, so that the overall structure of the compartment can be stably unfolded, providing maximum use space, while ensuring the smooth progress of the unfolding process and avoiding possible operational errors or structural instability. One end of the top cylinder 18 is fixedly connected to the middle top 10, and the other end of the top cylinder 18 is hinged in the main compartment body 1 through a pin shaft. The rail car hydraulic motor 19 is fixedly connected in the beam 3. The rail car hydraulic motor 19 is fixedly connected to the track of the main beam and the auxiliary beam in the main compartment body 1. The rail car hydraulic motor 19 is connected to the beam 3 through a fixed connection to drive the beam 3 to translate along the track. The hydraulic motor drives the beam 3 and the auxiliary beam to perform precise axial translation during the deployment process through this connection, ensuring that the compartment can be flexibly expanded in width and length. The advantage of this design is that the hydraulic motor can efficiently and reliably drive the movement of the beam 3, simplifying the entire deployment process, improving the stability and operating efficiency of the equipment, especially when the compartment structure needs to be finely adjusted, providing extremely high operational flexibility.

[0024] Working principle: when in use: start the hydraulic system, operate the main compartment lifting cylinder 11 through the operating handle to drive the middle top 10 component of the main compartment body 1 to rise to the preset height. After the main compartment body 1 is lifted into place, start the main compartment outer page plate cylinder 12 to drive the outer page plate of the main compartment body 1 to unfold to the preset angle, and then operate the main compartment bottom plate cylinder 13 to drive the left and right bottom plate one leaf 4 and the left and right bottom plate two leaves 5 to move outward to the preset position respectively. At this time, the main compartment bottom plate cylinder 13 stops working, and the bottom plate and the left and right side wall leaves 6 are positioned and fixed. Then start the rail car hydraulic motor 19 of the beam 3, and drive the main beam and the auxiliary beam to move along the track body 20 through the pulley 21 and extend out of the main compartment body 1. The auxiliary beam extends to the predetermined position and the rear track The hydraulic motor 19 of the road vehicle stops working and maintains the state, and then the auxiliary compartment lifting cylinder 14 is started to drive the middle top 10 component of the auxiliary compartment body 2 to rise to a preset height, and the auxiliary compartment outer page plate cylinder 15 is started to drive the outer page plate of the auxiliary compartment body 2 to translate outward to a preset distance, and at the same time, the auxiliary compartment outer page plate cylinder 15 is started to unfold the outer page plate of the auxiliary compartment body 2 to a preset angle, and then the auxiliary compartment bottom plate cylinder 16 is started to make the left and right bottom plate one fan 4 and the left and right bottom plate two fans 5 flip from a vertical state to a horizontal state, and drive the left and right side wall fans 6 to keep the vertical state and move outward through the bottom plate wall fan connecting rod mechanism until the bottom plate is horizontal and the wall fan is perpendicular to the bottom plate and stops working, the bottom plate and the wall fan remain stable, and then the front and rear wall fans 7 are pushed to flip horizontally to the preset position. The main compartment body 1 and the auxiliary compartment body 2 are in a completely closed state, and the unfolding process is completed. During the folding process, the hydraulic system is first started, and the top cylinders 18 are started in sequence to flip the top structure 8 downward and reset it, pushing the front and rear wall fans 7 to flip horizontally to the inside of the compartment body and fix them. The auxiliary compartment body bottom plate cylinder 16 is operated by the hydraulic system to flip the left and right bottom plate one fan 4 and two fans of the auxiliary compartment body 2 from a horizontal state to a vertical state, and the left and right side wall fans 6 are driven to keep the vertical state and move toward the inside of the compartment body under the action of the bottom plate wall fan connecting rod mechanism, until the bottom plate is vertical and the wall fan is parallel to the bottom plate, then stop working and fix it, and then start the auxiliary compartment outer page plate cylinder 15 to push the auxiliary compartment body 2 outer page plate cylinder 16 ... The leaf plate is folded to a vertical state, and then the auxiliary compartment outer leaf plate cylinder 15 is started to translate the outer leaf plate inwardly back to its original position. After completing the above actions, the auxiliary compartment top lifting cylinder 14 is started to lower the top 10 components of the auxiliary compartment body 2 to the initial height, and then the beam 3 rail car hydraulic motor 19 is started to drive the main beam and the auxiliary beam to move axially to the initial position and keep it stable. Finally, the main compartment bottom plate cylinder 13 is manipulated by the hydraulic system to translate the left and right bottom plates back to their original positions and fix them, keeping them in the same position with the left and right side wall fans 6. The main compartment outer leaf plate cylinder 12 is started to retract the outer leaf plate of the main compartment body 1 to its initial vertical state, and the main compartment top lifting cylinder 11 is started to lower the top 10 components of the main compartment body 1 to its initial height, and then it is restored to the folded state to complete the folding process.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A foldable movable box body that can be pulled forward and backward, comprising a main compartment body (1), a sub-compartment body (2), a beam (3), a left and right bottom plate leaf (4), two left and right bottom plate leaves (5), left and right side wall leaves (6), front and rear wall leaves (7), a mountain peak structure (8), a large roof (9), a middle roof (10), a main compartment top-lifting cylinder (11), a main compartment outer leaf plate cylinder (12), a main compartment bottom plate cylinder (13), a sub-compartment top-lifting cylinder (14), a sub-compartment outer leaf plate cylinder (15), a sub-compartment bottom plate cylinder (16), a wall leaf driving cylinder (17), a mountain peak cylinder (18), a rail vehicle hydraulic motor (19) and a rail body (20), characterized in that: The main compartment body (1) and the auxiliary compartment body (2) are slidably connected via a beam (3), the beam (3) being fixed to the top of the main compartment body (1), the left and right bottom plate leaves (4) being connected to the bottom of the main compartment body (1) via a hinge, the left and right bottom plate leaves (5) being connected to the bottom of the auxiliary compartment body (2) via a hinge, the left and right side wall leaves (6) being respectively hinged to the two sides of the main compartment body (1) and the auxiliary compartment body (2) via a pin shaft, the front and rear wall leaves (7) being hinged to the front and rear ends of the main compartment body (1) and the auxiliary compartment body (2) via a pin shaft, the mountain peak structure (8) being hinged to the outside of the top (9) via a pin shaft, the track body (20) being slidably connected to the left and right bottom plate leaves (4), two guide rail leg oil cylinders (22) being fixedly connected to the bottom of the track body (20), the track vehicle hydraulic motor (19) being rotatably connected to a pulley (21), the pulley (21) being slidably connected to the outside of the track body (20).

2. The foldable movable box that can be pulled forward and backward according to claim 1 is characterized in that: The main compartment lifting cylinder (11) is hinged in the main compartment body (1) via a pin shaft, and the main compartment lifting cylinder (11) is overlapped under the large roof (9).

3. The foldable movable box that can be pulled forward and backward according to claim 1 is characterized in that: The main compartment outer leaf plate oil cylinder (12) is hinged in the main compartment body (1) via a pin shaft, and the main compartment outer leaf plate oil cylinder (12) is fixedly connected to the left and right side wall fans (6).

4. The foldable movable box that can be pulled forward and backward according to claim 1 is characterized in that: The main compartment bottom plate oil cylinder (13) is fixedly connected to the main compartment body (1) via a hinge, and the main compartment bottom plate oil cylinder (13) is fixedly connected to one of the left and right bottom plate leaves (4) via a hinge.

5. The foldable movable box that can be pulled forward and backward according to claim 1 is characterized in that: The auxiliary compartment lifting oil cylinder (14) is hinged in the auxiliary compartment body (2) via a pin shaft.

6. The foldable movable box that can be pulled forward and backward according to claim 1, characterized in that: The auxiliary compartment outer page plate oil cylinder (15) is hinged in the auxiliary compartment body (2) via a pin shaft.

7. The foldable movable box that can be pulled forward and backward according to claim 1, characterized in that: One end of the auxiliary compartment bottom plate oil cylinder (16) is hinged in the auxiliary compartment body (2) via a pin shaft, and the other end of the auxiliary compartment bottom plate oil cylinder (16) is hinged in the left and right bottom plate leaves (5) via a pin shaft.

8. The foldable movable box that can be pulled forward and backward according to claim 1, characterized in that: One end of the wall fan driving cylinder (17) is fixedly connected to the front and rear wall fans (7), and the other end of the wall fan driving cylinder (17) is hinged to the outside of the auxiliary compartment body (2) via a pin shaft.

9. The foldable movable box that can be pulled forward and backward according to claim 1, characterized in that: One end of the top oil cylinder (18) is fixedly connected to the middle top (10), and the other end of the top oil cylinder (18) is hinged to the main compartment body (1) via a pin shaft.

10. The foldable movable box that can be pulled forward and backward according to claim 1, characterized in that: The rail vehicle hydraulic motor (19) is fixedly connected inside the main beam (3), and the rail vehicle hydraulic motor (19) is fixedly connected to the tracks of the main beam and the auxiliary beam inside the main compartment body (1).

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