Open top type back-turning self-unloading cargo transport box
By designing an open-top, rear-tipping self-unloading cargo transport container, and employing a hydraulic lifting device and various door types, the problem of existing cargo transport containers being unable to meet the lifting requirements of large equipment and bulk cargo has been solved. This enables diverse loading and unloading and safe transportation, optimizing the practical performance of the transport container.
Patent Information
- Application Number
- CN202422938653.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing cargo transport container designs cannot meet the hoisting needs of large equipment and bulk cargo, and the top-mounted design restricts the unloading methods of cargo, increases the input of manpower and material resources, and cannot meet diverse loading and unloading needs.
An open-top, rear-tipping self-unloading cargo transport container was designed, employing a hydraulic lifting device and multiple door designs, including rear-hinged doors and rear double doors, combined with an automatic waterproof tarpaulin, to achieve diverse loading and unloading of goods and safe transportation.
It enables convenient loading and unloading of large equipment and bulk cargo, reduces manpower input, ensures transportation safety, adapts to diverse loading and unloading needs, and optimizes the practical performance of transport containers and site limitations.
Smart Images

Figure CN223533403U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transport container technology, specifically to an open-top, rear-tipping self-unloading cargo transport container. Background Technology
[0002] my country's logistics and freight market has great potential and is developing rapidly, but it is still in its early stages. A large number of freight vehicles have emerged, and they are geographically concentrated. The loading and unloading environments are becoming increasingly complex, and existing methods can no longer meet the fundamental requirements of freight transport. The limitations of narrow and compact loading and unloading spaces also restrict the use of large loading and unloading equipment and the orientation of goods. Some unloading areas only allow rear-end unloading. When the vehicle type cannot automatically unload, most goods require manual handling, increasing both labor input and loading and unloading costs and efficiency. Currently, most freight transport is diverse, including household appliances and large equipment (such as electromechanical equipment). The cargo includes various types of goods, such as equipment, bulk goods (e.g., grain, sand, gravel), etc. A single transfer container can no longer fully meet the diverse loading and unloading needs. Currently, there are many different types of transfer containers on the market, and they have many design flaws. Most of the existing transfer containers are top-mounted, some only have a lift-opening door, and some only have double-door openings. A single lift-opening door cannot meet the loading and unloading needs of large equipment, and a single double-door opening cannot meet the unloading needs of bulk goods. The top-mounted design greatly limits the lifting needs of goods and the needs of large loaders for bulk goods, and cannot truly meet the loading, unloading and safety requirements.
[0003] Existing shipping containers are designed with a closed top, making it impossible to hoist large equipment and bulk cargo. Loading and unloading can only be done from the rear of the container, requiring manual dragging, which increases worker risks and physical exertion. This results in a waste of manpower, resources, money, and time. Therefore, our company has developed an open-top, rear-tipping self-unloading cargo transport container that solves these problems. Utility Model Content
[0004] The purpose of this utility model is to provide an open-top, rear-tipping self-unloading cargo transport box to address the defects and shortcomings of the existing technology.
[0005] The present invention relates to an open-top, rear-tipping self-unloading cargo transport box, comprising a transport box body, the front end of which is connected to a hydraulic cylinder body and fastened with bolts, enabling the separation and assembly of the transport box and the carrier; the hydraulic cylinder body is connected to a hydraulic cylinder rotating seat, the bottom end of which is connected to a hydraulic cylinder fixing seat mounted on the front end of the vehicle frame, and the hydraulic cylinder fixing seat is mounted on a base rotating seat; the rear end of the transport box body is hinged to the rear end of the vehicle frame via a rear-tipping seat.
[0006] Furthermore, the transport box body includes upper and lower side beams, on which uprights and anti-expansion pull bars are installed, with the anti-expansion pull bars welded to the uprights; box side plates are installed on both sides of the upper and lower side beams; the rear ends of the upper and lower side beams are installed on the rear reinforcing uprights; the top of the rear reinforcing uprights is connected to the top of the rear box door through a rear door flip hook, and the connection is achieved through a rear door flip hook pin; the bottom of the rear box door is connected to the rear reinforcing uprights through an automatic locking hook assembly.
[0007] Furthermore, the rear door of the transport container body is either a rear-hung door or a rear double-door.
[0008] Furthermore, the rear lifting door and the rear door flip hook on the rear box door are connected to the rear part of the transport box body, and the double door rotating hinge connects the rear double door to the rear lifting door for double opening or side opening; the bases at both ends of the double door locking rod assembly are welded to the rear lifting door.
[0009] Furthermore, a front maintenance door assembly is provided on the front of the transport box body.
[0010] Furthermore, the bottom surface of the transport box body is provided with several box body sub-frames and several box body bottom crossbeams, and the several box body sub-frames and several box body bottom crossbeams are cross-installed to form the base frame of the transport box body.
[0011] Furthermore, a reinforcing plate is provided at the intersection of the sub-frame of the box and the bottom crossbeam of the box.
[0012] Furthermore, a flip-up support plate is installed at the rear end of the base frame of the transport box body.
[0013] The beneficial effects of this utility model after adopting the above structure are as follows: The open-top, rear-tipping self-unloading cargo transport box of this utility model can be equipped with an automatic waterproof tarpaulin, which makes it more convenient for loading and transporting large equipment and bulk cargo, avoiding the problem of difficult loading of large equipment and bulk cargo, and ensuring the transportation of waterproof goods. The open-top design enables precise loading and unloading of large and bulk cargo. It installs a multi-section hydraulic lifting device at the front of the cargo transport box, which realizes both automatic rear-tipping and lifting of the cargo transport box. Different door designs and the open-top design can simultaneously realize diverse loading and unloading of large and medium-sized cargo and bulk cargo. The automatic waterproof tarpaulin design is more suitable for the transportation of most waterproof goods, and the automatic waterproof tarpaulin reduces the labor input. It has the special feature of realizing the lifting and self-unloading rear-tipping functions of the transfer box, and also adapts to the diversity of goods and the safety requirements of cargo loading and unloading. In this way, it optimizes the practical performance of the cargo transfer box and the limitation requirements of the site. Attached Figure Description
[0014] The accompanying drawings, which are provided to further illustrate the present invention and form part of this application, do not constitute an undue limitation of the present invention. In the drawings:
[0015] Figure 1 This is a view of the main body of the transport box in this utility model;
[0016] Figure 2 This is a structural view of the main body of the transport box in this utility model;
[0017] Figure 3 This is a structural schematic diagram of the rear door of the main body of the transport box in this utility model;
[0018] Figure 4 This is a schematic diagram of the front oil cylinder maintenance door in this utility model;
[0019] Figure 5 This is a structural schematic diagram of the subframe of the main body of the transport box in this utility model.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Upper and lower side beams; 2. Box body side plates; 3. Columns; 4. Anti-expansion box tie rods; 5. Rear door flip hook; 6. Rear door flip hook pin; 7. Rear reinforced column; 8. Safety lock assembly; 9. Automatic locking hook assembly; 10. Rear flip seat; 11. Hydraulic cylinder body; 12. Hydraulic cylinder rotating seat; 13. Hydraulic cylinder fixed seat; 14. Base rotating seat; 15. Rear hoisting door; 16. Rear double door; 17. Double door rotating hinge; 18. Double door locking rod assembly; 19. Front maintenance door assembly; 20. Box body subframe; 21. Box body bottom crossbeam; 22. Reinforcing plate; 23. Flip seat upper support plate. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0024] like Figures 1-5 As shown in the figure, the open-top rear-tipping self-unloading cargo transport box described in this specific embodiment includes a transport box body. The front end of the transport box body is connected to the cylinder body 11 and fastened with bolts, which can realize the separation and assembly of the transport box and the carrier. The cylinder body 11 is connected to the hydraulic cylinder rotating seat 12. The bottom end of the hydraulic cylinder rotating seat 12 is connected to the hydraulic cylinder fixing seat 13 installed at the front end of the frame. The hydraulic cylinder fixing seat 13 is installed on the base rotating seat 14. The rear end of the transport box body is hinged to the rear end of the frame through the rear-tipping seat 10.
[0025] Furthermore, the transport box body includes upper and lower side beams 1, on which columns 3 and anti-expansion pull bars 4 are installed, and the anti-expansion pull bars 4 are welded to the columns 3; box side plates 2 are installed on both sides of the upper and lower side beams 1; the rear end of the upper and lower side beams 1 is installed on the rear reinforcing column 7; the top end of the rear reinforcing column 7 is connected to the top end of the rear box door through the rear door flip hook 5, and the pin connection is achieved through the rear door flip hook pin 6; the bottom end of the rear box door is connected to the rear reinforcing column 7 through the automatic locking hook assembly 9.
[0026] Furthermore, the rear door of the transport container body is a rear-hung door 15 or a rear double-door 16.
[0027] Furthermore, the rear lifting door 15 on the rear box door is connected to the rear door flip hook 5 at the rear of the transport box body, and the double door rotating hinge 17 connects the rear double door 16 to the rear lifting door 15 for double opening or side opening; the bases at both ends of the double door locking rod assembly 18 are welded to the rear lifting door 15.
[0028] Furthermore, a front maintenance door assembly 19 is provided on the front of the transport box body.
[0029] Furthermore, the bottom surface of the transport box body is provided with several box body sub-frames 20 and several box body bottom crossbeams 21, and the several box body sub-frames 20 and several box body bottom crossbeams 21 are cross-installed to form the transport box body base frame.
[0030] Furthermore, a reinforcing plate 22 is provided at the intersection of the sub-frame 20 and the bottom crossbeam 21 of the box.
[0031] Furthermore, a flip-up support plate 23 is installed at the rear end of the base frame of the transport box body.
[0032] The working principle of this utility model is explained in detail below:
[0033] This design addresses the issue that existing transfer containers lack automatic unloading capabilities. Some transfer containers with self-unloading functions fail to meet market demands. Some self-unloading transfer containers only have a single open door, while others only have double doors. A single open door cannot meet the loading and unloading needs of large equipment, and a single double door cannot meet the unloading needs of bulk goods. Furthermore, the lack of safety locks prevents them from truly meeting loading, unloading, and safety requirements. Most existing containers are essentially top-mounted, which cannot meet the needs of hoisting and unloading goods or the use of large loaders for bulk goods.
[0034] The front end of the transport container body in this design is equipped with a hydraulic cylinder and a cylinder tilting support, and the rear end of the transport container body is fixed with a tilting support. The hydraulic cylinder assembly and the rear tilting support are matched with each other to achieve the purpose of lifting the goods and unloading them by the hydraulic cylinder.
[0035] The rear door of the transport container in this design has two opening types: a hinged door and a double-door door. The door style of the transport container can be selected according to loading and unloading requirements. A multi-section hydraulic lifting device (cylinder body) is installed at the front of the transport container. The hydraulic cylinder body at the front of the transport container is enclosed, and a side door (front maintenance door assembly) is left at the front of the transport container to facilitate the maintenance and replacement of the hydraulic device.
[0036] The transport container in this design is equipped with a multi-section hydraulic lifting device with a safe rotating fulcrum on the front side. This allows the transport container to automatically unload cargo from the rear, depending on the loading and unloading site requirements. The transport container is open-top and can be fitted with an automatic waterproof tarpaulin, making it easier to load and transport large equipment and bulk cargo. This avoids the difficulties of loading large equipment and bulk cargo and ensures the safe transport of waterproof goods.
[0037] This design integrates a multi-section hydraulic lifting device at the front of the transport container, enabling both rear-tipping and unloading, as well as a combination of hoisting and self-unloading. The rear door can be either a rear-hinged opening or a rear double-opening design, facilitating the diverse loading and unloading of large and medium-sized goods as well as bulk cargo. This design achieves the unique hoisting and self-unloading capabilities of the transport container, while also adapting to the diversity of goods and the safety requirements of loading and unloading. Furthermore, it optimizes the practicality of the cargo transport container and reduces limitations in terms of site conditions.
[0038] In this design, the upper and lower side beams 1 are connected and welded to the box body side plates 2 and columns 3. The columns 3 are welded to the upper and lower side beams 1 to reinforce the box body. The anti-expansion box tie rods 4 are welded to the columns 3 to prevent the box body from expanding on both sides. The rear door flip hook 5 is welded to the rear lifting door 15. When the box door is opened, it lifts the box door and rotates it through the rear door flip hook pin 6, so that the box door can be lifted open.
[0039] In this design, the safety lock assembly 8 is connected to the rear reinforcing column 7 with a live pin to prevent automatic opening; the automatic locking hook assembly 9 is welded to the lower edge of the rear of the box and connected to the carrier with a chain, and can be automatically opened when the hydraulic cylinder body 11 is lifted.
[0040] In this design, the upper part of the rear tilting seat 10 is welded to the upper support plate 23 of the tilting seat, and the lower part of the rear tilting seat 10 is connected to the carrier with a container lock for self-unloading rotation.
[0041] In this design, the upper part of the cylinder body 11 is connected to the hydraulic cylinder rotating seat 12, and the hydraulic cylinder rotating seat 12 is connected to the box body with bolts; the lower part of the cylinder body 11 is connected to the carrier through the hydraulic cylinder fixing seat 13 and the base rotating seat 14; when the rear flip seat 10, the hydraulic cylinder fixing seat 13, and the base rotating seat 14 are opened, the entire box body can be hoisted.
[0042] In this design, the rear hanging door 15 is connected to the rear door flip hook 5 at the rear of the box. The double door rotating hinge 17 connects the rear double door 16 to the rear hanging door 15 for double opening or side opening. The bases at both ends of the double door locking rod assembly 18 are welded to the rear hanging door 15. When the rear double door 16 is closed, the double door locking rod assembly 18 is locked to prevent accidental opening.
[0043] This design is an open-top, rear-tipping self-unloading cargo transport container based on container semi-trailers, Class II chassis freight trucks, and flatbed semi-trailers. The technical design improves the flexibility of the cargo transport container. When the safety lock assembly 8 is opened, the hydraulic cylinder body 11 is lifted, rotating via the hydraulic cylinder fixing seat 13 and the base rotating seat 14. The entire container rotates via the rear-tipping seat 10; the automatic locking hook assembly 9 automatically opens the rear lifting door 15, achieving automatic unloading; when the rear-tipping seat 10 returns to its original position, the container automatically returns to its original position. When the safety lock assembly 8 is locked and the double door locking rod assembly 18 is opened, the rear double door 16 is opened by rotating the double door rotating hinge 17; reversing the operation will close the rear double door 16.
[0044] The bottom of the rear tilting seat 10 is fixed on the hydraulic cylinder fixing seat 13. The hydraulic cylinder fixing seat 13 is connected and fixed to the hydraulic cylinder rotating seat 12 with bolts. The automatic locking hook assembly 9 and the double door locking rod assembly 18 are locked with the carrier lock. When the cylinder body 11 is lifted, the box begins to tilt and unload itself under the action of the rear tilting seat 10.
[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An open-top, rear-tipping self-unloading cargo transport box, comprising a transport box body, the front end of which is connected to a hydraulic cylinder body and fastened with bolts, enabling separation and assembly of the transport box and a carrier; the hydraulic cylinder body is connected to a hydraulic cylinder rotating seat, the bottom end of which is connected to a hydraulic cylinder fixed seat mounted on the front end of a vehicle frame, the hydraulic cylinder fixed seat being mounted on a base rotating seat; the rear end of the transport box body is hinged to the rear end of the vehicle frame via a rear-tipping seat; Its features are: The transport box body includes upper and lower side beams, on which uprights and anti-expansion pull bars are installed, with the anti-expansion pull bars welded to the uprights; box side plates are installed on both sides of the upper and lower side beams; the rear ends of the upper and lower side beams are installed on the rear reinforcing uprights; the top of the rear reinforcing uprights is connected to the top of the rear box door through a rear door flip hook, and the connection is achieved through a rear door flip hook pin; the bottom of the rear box door is connected to the rear reinforcing uprights through an automatic locking hook assembly; The rear lifting door and the rear door flip hook on the rear box door are connected to the rear of the transport box body. The double door rotating hinge connects the rear double door to the rear lifting door for double opening or side opening. The bases at both ends of the double door locking rod assembly are welded to the rear lifting door.
2. The open-top, rear-tipping self-unloading cargo transport container according to claim 1, characterized in that: The rear door of the transport container body is either a rear-hung door or a rear double-door.
3. The open-top, rear-tipping self-unloading cargo transport container according to claim 1, characterized in that: A front maintenance door assembly is provided on the front of the transport container body.
4. The open-top, rear-tipping self-unloading cargo transport container according to claim 1, characterized in that: The bottom surface of the transport container body is provided with several container sub-frames and several container bottom crossbeams, which are cross-installed to form the base frame of the transport container body.
5. The open-top, rear-tipping self-unloading cargo transport container according to claim 4, characterized in that: A reinforcing plate is installed at the intersection of the sub-frame of the box and the bottom crossbeam of the box.
6. The open-top, rear-tipping self-unloading cargo transport container according to claim 4, characterized in that: The rear end of the base frame of the transport container is equipped with a flip-up support plate.