Self-unloading container and new energy container semi-trailer
The self-unloading container's hydraulic system automatically tilts the box girder to achieve fully automated unloading, solving the problem of low efficiency caused by relying on external equipment for unloading of existing containers, and improving unloading efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUXIANG AUTOMOBILE MANUFACTURING CO LTD
- Filing Date
- 2025-09-13
- Publication Date
- 2026-06-26
AI Technical Summary
The existing container unloading process relies on external equipment, resulting in low efficiency and high labor intensity, and cannot achieve efficient and automated unloading.
A self-unloading container was designed, which uses components such as sub-beams, box beams, hydraulic cylinder tilting bases and hydraulic cylinder bodies. The box beams are automatically tilted through a hydraulic system to achieve fully automatic unloading.
It significantly shortens loading and unloading time, increases transportation turnover, reduces logistics costs, avoids cargo damage and personnel safety risks, and improves unloading reliability and efficiency.
Smart Images

Figure CN224409064U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of container technology, specifically to a self-unloading container and a new energy container semi-trailer. Background Technology
[0002] A container is a tool that can carry packaged or unpackaged goods for transport and facilitates loading, unloading and handling by mechanical equipment. As an international transport and logistics tool for multimodal transport, the application of containers is becoming increasingly widespread and involves more and more industries. The greatest success of containers lies in the standardization of their products and the complete transportation system established as a result.
[0003] Chinese utility model patent CN218369611U discloses a container including two opposing bottom beams along its length, corner posts extending to the bottom beams along its height, a partition, and an end door. The partition extends vertically into the container, dividing it into a cable compartment and an equipment compartment along its length. The end door is positioned vertically above the bottom beam near the cable compartment and is hinged to the corner posts. A groove is provided on the bottom beam near the cable compartment, extending downwards from the cable compartment to allow cables to pass through it. With this utility model, cable removal does not affect the closing of the container's end door during use.
[0004] In existing container unloading operations, external loading and unloading equipment is required to complete the cargo handling. This process is not only time-consuming but also subject to site limitations, resulting in a significant reduction in overall operational efficiency. In addition, the reliance on manual unloading also greatly increases labor intensity. Utility Model Content
[0005] The purpose of this invention is to provide a self-unloading container and a new energy container semi-trailer to solve the problem of low efficiency caused by the reliance on external equipment for unloading existing containers.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-unloading container and a new energy container semi-trailer, including a sub-beam, a rotary lock base and four corner columns;
[0007] The inner wall of the sub-beam is equipped with multiple hydraulic cylinder tilting bases, and hydraulic cylinder bodies are installed between the inner walls of the multiple hydraulic cylinder tilting bases. The output ends of the multiple hydraulic cylinder bodies are equipped with hydraulic cylinder lifting components, and the top two sides of the sub-beam are equipped with support devices via hinges.
[0008] The rotary lock base is provided in multiple ways, and the four corner columns are provided in four ways. The multiple rotary lock bases are respectively installed at the top and bottom of the four corner columns, and the four corner columns are respectively installed at the four corners of the sub-beam through the rotary lock bases.
[0009] The box girder is mounted on one side of the top of the sub-beam via hinges, and multiple hydraulic cylinder lifting assemblies are welded to the top of the box girder.
[0010] Furthermore, an oil tank is installed on one side of the top of the sub-beam, and an oil pump is installed on one side of the outer wall of the oil tank via a pipe. The bottom end of the oil pump is installed on the top of the sub-beam, and an oil inlet pipe is installed on the top of the oil pump. An oil return pipe is installed on the other side of the outer wall of the oil tank, and both the oil return pipe and the oil inlet pipe are embedded inside the sub-beam. A multi-way valve is installed on the other side of the top of the sub-beam.
[0011] Furthermore, a right door beam is installed between the two corner columns on the right side via a pivot lock base, and front and rear walls are installed between the two corner columns on the front and rear sides. Multiple triangular supports are installed on one side of the top of the box girder, and a steel wire rope is installed at the bottom of the box girder. A limit valve is installed at the other end of the steel wire rope, and the limit valve is installed on the inner wall of the sub-beam.
[0012] Furthermore, a right side wall is installed between the outer walls of the multiple triangular supports, and a left door beam column is installed between the two left corner columns via a pivot lock base. Three left side walls are installed on the top inner wall of the left door beam column via hinges. Multiple small diagonal braces are installed on the inner side of the right door beam column, and the bottom ends of the multiple small diagonal braces are all installed on the top of the sub-beam. Two limiting frames are installed on the lower inner side of the left door beam column, and both limiting frames are installed on the inner wall of the sub-beam. Two large diagonal braces are installed together between the inner side of the right side wall and the top of the box beam.
[0013] Furthermore, the multi-way valve is connected to the return oil pipe, the inlet oil pipe and the cylinder body through branch pipes, and the cylinder body is configured as a multi-stage telescopic hydraulic cylinder.
[0014] Furthermore, the limiting frame is configured as an arc-shaped structure, and the limiting frame is movably connected to the box girder, and the supporting device is configured as a triangular frame.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] (1) This utility model achieves fully automatic unloading of goods by working together with components such as the sub-beam, box beam, hydraulic cylinder tilting base and hydraulic cylinder body. The hydraulic cylinder body, as the core power element, generates thrust or pull force through piston extension and retraction, which is transmitted to the box beam, causing the box beam to rotate around the axis on the sub-beam. This design eliminates the need for manual labor or external equipment, significantly shortens loading and unloading time, improves transportation turnover rate, reduces logistics costs, avoids cargo damage and personnel safety risks, and improves unloading reliability and efficiency.
[0017] (2) This utility model constructs an efficient and stable hydraulic power system for container semi-trailers through the coordinated work of components such as oil tank, oil pump, return oil pipe, inlet oil pipe and multi-way valve. The oil pump draws hydraulic oil stored in the oil tank, the inlet oil pipe inputs hydraulic oil to the cylinder body through the multi-way valve, and the return oil pipe leads the used oil back to the oil tank to form a circulation loop, ensuring a stable oil supply. This design is efficient and stable, avoids power interruption, and improves work reliability. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0019] Figure 1 One of the overall structural schematic diagrams provided for an embodiment of this utility model;
[0020] Figure 2 This is the second overall structural schematic diagram provided for an embodiment of the present utility model;
[0021] Figure 3 A structural schematic diagram of the lifting assembly is provided for an embodiment of this utility model;
[0022] Figure 4 One of the structural schematic diagrams of the unloading state is provided for an embodiment of this utility model;
[0023] Figure 5 The second structural schematic diagram shows the unloading state of this utility model embodiment.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. Sub-beam; 2. Rotary lock base; 3. Four corner columns; 4. Right door beam column; 5. Front and rear walls; 6. Box beam; 7. Triangular brace; 8. Right side wall; 9. Left door beam column; 10. Left side wall; 11. Oil tank; 12. Oil pump; 13. Return oil pipe; 14. Inlet oil pipe; 15. Multi-way valve; 16. Hydraulic cylinder tilting base; 17. Hydraulic cylinder body; 18. Steel wire rope; 19. Support device; 20. Small diagonal brace; 21. Limit frame; 22. Large diagonal brace; 23. Hydraulic cylinder lifting assembly; 24. Limit valve. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0027] As attached Figure 1 To be continued Figure 5 As shown:
[0028] Example 1:
[0029] This utility model provides a self-unloading container and a new energy container semi-trailer, including a sub-beam 1, a rotary lock base 2 and four corner columns 3;
[0030] Multiple hydraulic cylinder tilting bases 16 are installed on the inner wall of the sub-beam 1. The hydraulic cylinder tilting bases 16 provide a stable installation foundation for the hydraulic cylinder body 17. The hydraulic cylinder body 17 is installed between the inner walls of the multiple hydraulic cylinder tilting bases 16. The output end of the multiple hydraulic cylinder body 17 is equipped with a hydraulic cylinder lifting assembly 23. The hydraulic cylinder lifting assembly 23 is used to directly act on the box beam 6 to achieve the lifting action. Support devices 19 are installed on both sides of the top of the sub-beam 1 through hinges. The support devices 19 can be unfolded when needed to provide additional support for the entire structure and enhance stability.
[0031] Multiple pivot bases 2 are provided, and four corner columns 3 are provided. Multiple pivot bases 2 are respectively installed at the top and bottom of the four corner columns 3, and the four corner columns 3 are respectively installed at the four corners of the sub-beam 1 through pivot bases 2.
[0032] Box girder 6 is installed on one side of the top of sub-beam 1 via hinges. This installation method allows box girder 6 to rotate at a certain angle relative to sub-beam 1. Multiple hydraulic cylinder lifting components 23 are welded and installed on the top of box girder 6. When the hydraulic cylinder body 17 extends or retracts, the hydraulic cylinder lifting components 23 can drive box girder 6 to perform lifting and lowering actions.
[0033] An oil tank 11 is installed on one side of the top of the sub-beam 1. The oil tank 11 is used to store hydraulic oil and provide oil source for the entire hydraulic system. An oil pump 12 is installed on one side of the outer wall of the oil tank 11 through a pipe. The oil pump 12 serves as the power source of the hydraulic system and can extract and pressurize the hydraulic oil in the oil tank 11. The bottom end of the oil pump 12 is installed on the top of the sub-beam 1. An oil inlet pipe 14 is installed on the top of the oil pump 12. A return oil pipe 13 is installed on the other side of the outer wall of the oil tank 11. Both the return oil pipe 13 and the oil inlet pipe 14 are embedded inside the sub-beam 1. A multi-way valve 15 is installed on the other side of the top of the sub-beam 1. The multi-way valve 15 is used to control the flow direction and flow rate of the hydraulic oil, thereby realizing independent or coordinated control of multiple cylinder bodies 17.
[0034] The multi-way valve 15 is connected to the return oil pipe 13, the inlet oil pipe 14 and the cylinder body 17 through branch pipes to form a complete hydraulic circuit. The cylinder body 17 is set as a multi-stage telescopic hydraulic cylinder, and uses five 130×6-section multi-stage telescopic hydraulic cylinders to enable the box beam 6 to rotate 45° around the tilting seat. This design can provide different lengths of telescopic stroke according to actual needs to meet diverse usage scenarios.
[0035] Working principle: The container is installed on a new energy container semi-trailer and put into use. When unloading is required, the power system of the new energy container semi-trailer is started, providing the necessary energy to the oil pump 12. The oil pump 12 starts working, drawing hydraulic oil from the oil tank 11 and delivering the pressurized hydraulic oil to the multi-way valve 15 through the oil inlet pipe 14. The multi-way valve 15 distributes the hydraulic oil to each cylinder body 17 according to the preset control logic. Under the action of the hydraulic oil, the output ends of the multiple cylinder bodies 17 push the cylinder lifting assembly 23 upward. Then, the box beam 6 will rotate around the hinge axis under the push of the cylinder lifting assembly 23. As the box beam 6 rotates, the goods inside the container will be automatically unloaded under the action of gravity, realizing fully automatic unloading. This design has no... This design, which requires manual labor or external equipment, can significantly shorten loading and unloading time, improve transportation turnover, and reduce logistics costs. Simultaneously, it avoids cargo damage and personnel safety risks, enhancing unloading reliability and efficiency. After unloading is complete, the multi-way valve 15 switches the oil circuit, and the hydraulic oil flows back to the oil tank 11 through the return oil pipe 13, completing a full hydraulic cycle. The cylinder body 17 gradually retracts after the hydraulic oil pressure disappears, driving the cylinder lifting assembly 23 and the box beam 6 back to their initial positions, achieving fully automatic unloading of container cargo. This process requires no manual intervention or external loading and unloading equipment, significantly improving unloading efficiency and automation. Furthermore, this design utilizes the clean energy provided by the new energy container semi-trailer to drive the hydraulic system, reducing emissions and environmental pollution, aligning with the development trend of green logistics.
[0036] Example 2:
[0037] This embodiment is basically the same as the previous embodiment, except that a right door beam column 4 is installed between the two corner columns 3 on the right side through a pivot base 2, and front and rear walls 5 are installed between the two corner columns 3 on the front and rear sides. Multiple triangular supports 7 are installed on one side of the top of the box beam 6. The triangular supports 7 adopt a triangular structure, which has high stability and can effectively disperse the force on the right side wall 8, thereby enhancing the load-bearing capacity of the right side wall 8. A steel wire rope 18 is installed at the bottom of the box beam 6. The steel wire rope 18 plays the role of connection and limit. When the box beam 6 is raised and lowered, the steel wire rope 18 can limit its range of motion to prevent the box beam 6 from being damaged due to excessive raising and lowering. A limit valve 24 is installed at the other end of the steel wire rope 18. The limit valve 24 can accurately control the raising and lowering position of the box beam 6, and the limit valve 24 is installed on the inner wall of the sub-beam 1.
[0038] A right side wall 8 is installed between the outer walls of multiple triangular braces 7. A left door beam column 9 is installed between the two four-corner columns 3 on the left side through a pivot base 2. Three left side walls 10 are installed on the top inner wall of the left door beam column 9 through hinges. Multiple small diagonal braces 20 are installed on the inner side of the right door beam column 4, and the bottom ends of the multiple small diagonal braces 20 are all installed on the top of the sub-beam 1. Two limiting frames 21 are installed on the lower inner side of the left door beam column 9, and the two limiting frames 21 are all installed on the inner wall of the sub-beam 1. Two large diagonal braces 22 are installed between the inner side of the right side wall 8 and the top of the box beam 6. The large diagonal braces 22 further enhance the connection stability between the right side wall 8 and the box beam 6, can disperse the lateral force on the right side wall 8, and improve the overall structure's anti-overturning ability.
[0039] The limiting frame 21 is designed with an arc shape, which can better adapt to the movement trajectory of the box girder 6. It plays a guiding and limiting role during the lifting and lowering of the box girder 6, preventing the box girder 6 from deviating and ensuring the operational stability of the entire structure. The limiting frame 21 is movably connected to the box girder 6. The support device 19 is designed with a triangular frame. Compared with a general structure, the triangular frame has higher stability and load-bearing capacity. The support device 19 can be deployed when needed to provide reliable support for the entire structure and enhance the stability of the structure in static or working states.
[0040] Working Principle: This self-unloading container should be transported on a flatbed truck or a dedicated container trailer. It is secured at four turnlock bases 2 using twist locks or similar devices. During loading, unloading, and transportation, this container will not experience any permanent deformation or other abnormal phenomena that would affect its use. This container is a special-purpose container, intended for long-term use on new energy container semi-trailers, and is only for road transport. It does not pass through customs. The height of the vehicle carrying the container (including the container) must not exceed 4.2 meters, the width of the vehicle-trailer combination must be limited to 2550mm, the total length of the semi-trailer must not exceed 13750mm, and the maximum weight limit for a six-axle vehicle-trailer combination is 49000kg. During the container tipping and unloading process, the right side wall 8 is rigidly connected to the box beam 6 via triangular braces 7, forming a stable side structure. The front and rear walls 5 are fixed to the four corner columns 3 via turnlock bases 2, enhancing overall rigidity. The two arc-shaped limiting brackets 21 on the lower inner side of the left door beam column 9 are movably inserted into the box beam 6. The rotation trajectory of the box girder 6 is restricted to prevent lateral displacement. At the same time, the right side wall 8 is reinforced with a large diagonal brace 22 to ensure the stability of the side structure during rotation. When the box girder 6 rotates to a certain position, it will cause the wire rope 18 to tighten and touch the limit valve 24 switch, putting the limit valve 24 into working state. At this time, the cylinder body 17 stops working, and the rotation of the box girder 6 ends, thus preventing local rotation from exceeding the highest position. When the box girder 6 rotates to the highest tilt position, the two side support devices 19 are manually rotated around the hinge to support the box girder 6 and prevent the box girder 6 from falling suddenly. During this process, the multi-way valve 15 plays a safety control role. When the oil inlet is suddenly depressurized, the multi-way valve 15 promptly prevents the return of oil and prevents the local rotation structure from falling suddenly. Personnel can operate the multi-way valve 15 in the safe area at the rear of the box girder. The hydraulic oil flows back to the oil tank 11 through the return oil pipe 13, and the cylinder body 17 retracts, causing the box girder 6 to slowly fall back to its horizontal position.
[0041] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A self-unloading container and a new energy container semi-trailer, characterized in that, include: Sub-beam (1), swivel lock base (2), and four corner columns (3); The inner wall of the sub-beam (1) is equipped with multiple cylinder tilting bases (16), and cylinder bodies (17) are installed between the inner walls of the multiple cylinder tilting bases (16). The output ends of the multiple cylinder bodies (17) are equipped with cylinder lifting components (23), and the top two sides of the sub-beam (1) are equipped with support devices (19) via hinges. Multiple pivot bases (2) are provided, and four corner columns (3) are provided. Multiple pivot bases (2) are respectively installed at the top and bottom of the four corner columns (3). The four corner columns (3) are respectively installed at the four corners of the sub-beam (1) through pivot bases (2). The box girder (6) is installed on one side of the top of the sub-beam (1) by means of a hinge, and multiple hydraulic cylinder lifting assemblies (23) are welded to the top of the box girder (6).
2. The self-unloading container and new energy container semi-trailer according to claim 1, characterized in that, An oil tank (11) is installed on one side of the top of the sub-beam (1). An oil pump (12) is installed on one side of the outer wall of the oil tank (11) through a pipe. The bottom end of the oil pump (12) is installed on the top of the sub-beam (1). An oil inlet pipe (14) is installed on the top of the oil pump (12). A return oil pipe (13) is installed on the other side of the outer wall of the oil tank (11). Both the return oil pipe (13) and the oil inlet pipe (14) are embedded inside the sub-beam (1). A multi-way valve (15) is installed on the other side of the top of the sub-beam (1).
3. The self-unloading container and new energy container semi-trailer according to claim 1, characterized in that, A right door beam column (4) is installed between the two corner columns (3) on the right side via a pivot base (2). Front and rear walls (5) are installed between the two corner columns (3) on the front and back sides. Multiple triangular supports (7) are installed on one side of the top of the box beam (6). A steel wire rope (18) is installed at the bottom of the box beam (6). A limit valve (24) is installed at the other end of the steel wire rope (18), and the limit valve (24) is installed on the inner wall of the sub-beam (1).
4. A self-unloading container and a new energy container semi-trailer according to claim 3, characterized in that, A right side wall (8) is installed between the outer walls of the multiple triangular supports (7). A left door beam column (9) is installed between the two left corner columns (3) via a pivot base (2). Three left side walls (10) are installed on the top inner wall of the left door beam column (9) via hinges. Multiple small diagonal braces (20) are installed on the inner side of the right door beam column (4), and the bottom ends of the multiple small diagonal braces (20) are all installed on the top of the sub-beam (1). Two limiting frames (21) are installed on the lower inner side of the left door beam column (9), and the two limiting frames (21) are all installed on the inner wall of the sub-beam (1). Two large diagonal braces (22) are installed together between the inner side of the right side wall (8) and the top of the box beam (6).
5. A self-unloading container and a new energy container semi-trailer according to claim 2, characterized in that, The multi-way valve (15) is connected to the return oil pipe (13), the inlet oil pipe (14) and the cylinder body (17) through branch pipes. The cylinder body (17) is configured as a multi-stage telescopic hydraulic cylinder.
6. A self-unloading container and a new energy container semi-trailer according to claim 4, characterized in that, The limiting frame (21) is configured as an arc-shaped structure, and the limiting frame (21) is movably connected to the box beam (6). The supporting device (19) is configured as a triangular frame.