Vehicle-mounted container with self-loading and unloading functions
By using a motor-driven lead screw and lead screw nut transmission and an automatic switching mechanism, combined with a built-in sliding box design, the complexity and insufficient sealing issues in the loading and unloading process of vehicle-mounted containers are solved, achieving rapid automatic loading and unloading and reliable sealing, thus improving logistics efficiency and simplifying the structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI JUNRONG WANTONG PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-19
AI Technical Summary
Existing vehicle-mounted containers are complex to operate during loading and unloading, time-consuming and labor-intensive, and have a complex structure and insufficient sealing, making it difficult to achieve synchronous control.
It adopts a motor-driven lead screw and lead screw nut transmission, combined with the built-in box sliding design, and an automatic opening and closing mechanism to realize the rapid automatic loading and unloading of containers. The cooperation of limit rod and limit groove prevents the built-in box from shifting. The sealing plate is linked with the built-in box. The fixing mechanism supports multiple sets of snap-fit shells and snap-fit rods, and is compatible with sealing plates of different sizes or additional functional modules.
It enables rapid and automated loading and unloading of containers, reduces reliance on manpower, improves logistics efficiency, ensures reliable sealing during transportation, avoids damage to goods, simplifies the structure and reduces energy consumption, and enhances application flexibility.
Smart Images

Figure CN224257470U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of container technology, specifically to a vehicle-mounted container adapted for self-loading and unloading functions. Background Technology
[0002] The greatest success of containers lies in the standardization of their products and the resulting transportation system. This standardization enables the production of a massive container weighing tens of tons, and on this basis, a global logistics system integrating ships, ports, shipping routes, highways, transit stations, bridges, tunnels, and multimodal transport is gradually being realized.
[0003] A search of publication number "CN221643334U" reveals "a flexible-door vehicle-mounted container, including a flexible-door assembly, a chassis assembly at the bottom of the flexible-door assembly, a left-side skin at the top of the chassis assembly, the left-side skin being fixedly connected to the chassis assembly, a right-side skin at the top of the chassis assembly, the right-side skin being fixedly connected to the chassis assembly, a flexible-door pressure strip inside the flexible-door assembly, a flexible-door retractor at the top of the chassis assembly, right-angle tees at the top of the left and right-side skins, and two side straps on one side of the left and right-side skins, with strap fasteners at both ends of the side straps. By incorporating the flexible-door assembly, chassis assembly, left-side skin, right-side skin, right-angle tees, side straps, strap fasteners, top skin, triangular reinforcing plates, and door post reinforcing plates, the flexible-door vehicle-mounted container achieves the functions of movement and support during transportation, improving the convenience of flexible-door container transportation."
[0004] The aforementioned patents can provide certain mobility and support functions for the transportation of vehicle-mounted containers, but the following problems still exist:
[0005] 1. The vehicle-mounted containers in the above-mentioned patents mostly rely on external lifting equipment for loading and unloading, which has the problems of complicated operation and time and labor consumption;
[0006] 2. Secondly, even if self-loading and unloading container designs exist in existing technologies, their structures are usually quite complex, such as using hydraulic systems or independent drive devices, resulting in high maintenance costs and large space occupation.
[0007] 3. Finally, the opening and closing mechanisms of existing container sealing doors are mostly separate from the loading and unloading functions, making it difficult to achieve synchronous control. Furthermore, vibrations during transportation can easily lead to insufficient sealing, affecting cargo safety. Utility Model Content
[0008] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a vehicle-mounted container adapted to self-loading and unloading function, which can effectively solve the problems of inconvenient loading and unloading of container cargo, complex structure and insufficient sealing in the existing technology.
[0009] To achieve the above objectives, this utility model provides the following technical solution:
[0010] This utility model provides a vehicle-mounted container adapted for self-loading and unloading functions, including a container body with one open end. An inner container is slidably connected inside the container body, and a movable groove is provided at one end of the container body. A screw nut is fixedly connected to one end of the inner container, and the screw nut is slidably connected to the movable groove. A screw is rotatably connected between the inner walls of both sides of the movable groove, and the screw nut is threaded onto the circumferential surface of the screw. An automatic switching mechanism is provided at one end of the container body, connected to the screw nut, and used to open and close the opening at one end of the container body.
[0011] Furthermore, the automatic switching mechanism consists of a rack, a connecting arm, a gear, a connecting assembly, and a sealing plate. The connecting arm is fixedly connected to the upper end of the container body. The sealing plate is rotatably connected to the adjacent ends of the two connecting arms via a rotating shaft. The gear is fixedly connected to one end of the rotating shaft. The rack is slidably disposed on one side of the container body and meshes with the gear. The connecting assembly is disposed on the lower side of the rack and is connected to a lead screw nut, used to drive the rack to move synchronously through the movement of the lead screw nut.
[0012] Furthermore, the connecting assembly consists of a driving block and a connecting rod. The driving block is fixedly connected to the lower end of the rack, and the connecting rod is fixedly connected to one end of the lead screw nut and one end of the driving block.
[0013] Furthermore, a mounting block is fixedly connected to one end of the container body, a horizontal rod is fixedly connected to one end of the mounting block, a horizontal hole is opened at one end of the driving block, and the driving block is slidably connected to the circumferential surface of the horizontal rod through the horizontal hole.
[0014] Furthermore, an anti-detachment plate is fixedly connected to one end of the horizontal rod, and the diameter of the anti-detachment plate is larger than the diameter of the horizontal rod.
[0015] Furthermore, a limiting groove is formed on the lower inner wall of the movable groove, and a limiting rod is fixedly connected to the lower end of the lead screw nut, the limiting rod being slidably connected within the limiting groove.
[0016] Furthermore, a motor is fixedly connected to one end of the container body, and the output end of the motor is fixedly connected to a lead screw. Multiple disassembly windows are provided on the outer surface of the inner container body.
[0017] Furthermore, it also includes two sets of fixing mechanisms. Each set of fixing mechanisms consists of a snap-fit shell, a mounting rod, a snap-fit rod, a positioning groove, a positioning rod, and an insertion groove. The snap-fit shell and the mounting rod are respectively fixedly connected to one end of the container body and the sealing plate. The insertion groove is opened at one end of the snap-fit shell. The snap-fit rod is fixedly connected to one end of the mounting rod. The snap-fit rod is movably inserted into the insertion groove. The positioning groove is opened at one end of the snap-fit shell and the snap-fit rod. The positioning rod is movably inserted into the positioning groove.
[0018] Furthermore, the lower end of the built-in housing is provided with multiple moving rollers, and one end of the sealing plate is fixedly connected with multiple pull rods.
[0019] Beneficial effects
[0020] The technical solution provided by this utility model has the following advantages compared with the known prior art:
[0021] 1. By driving the lead screw and lead screw nut with a motor, combined with the sliding design of the built-in box, the container can be loaded and unloaded quickly and automatically, reducing reliance on manpower and improving logistics efficiency. The automatic switching mechanism links the opening and closing of the sealing plate with the movement of the built-in box, and achieves synchronous operation through a single motor, simplifying the structure and reducing energy consumption.
[0022] 2. The cooperation between the limiting rod and the limiting groove prevents the internal box from shifting; after the sealing plate is closed, it is locked by the positioning rod to ensure reliable sealing during transportation and avoid damage to the goods;
[0023] 3. The fixing mechanism supports multiple sets of snap-fit shells and snap-fit rods, which can be adapted to different sizes of sealing plates or additional functional modules, enhancing application flexibility. The detachable window makes it easy for staff to disassemble the goods in the container. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a front perspective view of the present invention;
[0026] Figure 2 This is the first main sectional perspective view of the present invention;
[0027] Figure 3 This is a side sectional perspective view of the present invention;
[0028] Figure 4This is the second main sectional perspective view of the present invention;
[0029] Figure 5 This is the third main sectional perspective view of the present invention.
[0030] Reference numerals: 1. Container body; 2. Motor; 3. Connecting rod; 4. Mounting block; 5. Horizontal bar; 6. Drive block; 7. Rack; 8. Anti-detachment plate; 9. Snap-fit shell; 10. Mounting rod; 11. Sealing plate; 12. Connecting arm; 13. Gear; 14. Screw nut; 15. Moving groove; 16. Screw; 17. Positioning rod; 18. Snap-fit rod; 19. Pull rod; 20. Internal body; 21. Removable window; 22. Moving roller; 23. Limiting rod; 24. Limiting groove. Detailed Implementation
[0031] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0032] The present invention will be further described below with reference to the embodiments.
[0033] See attached document Figure 1-5 A vehicle-mounted container adapted for self-loading and unloading functions includes a container body 1 with one end open, an inner box 20 slidably connected inside the container body 1, and a movable groove 15 opened at one end of the container body 1. A screw nut 14 is fixedly connected to one end of the inner box 20, and the screw nut 14 is slidably connected to the movable groove 15. A screw 16 is rotatably connected between the inner walls of both sides of the movable groove 15. The screw nut 14 is threaded to the circumferential surface of the screw 16. An automatic switching mechanism is provided at one end of the container body 1. The automatic switching mechanism is connected to the screw nut 14 and is used to open and close the opening at one end of the container body 1.
[0034] The automatic switching mechanism consists of a rack 7, a connecting arm 12, a gear 13, a connecting assembly, and a sealing plate 11. The connecting arm 12 is fixedly connected to the upper end of the container body 1. The sealing plate 11 is rotatably connected to the adjacent ends of the two connecting arms 12 via a rotating shaft. The gear 13 is fixedly connected to one end of the rotating shaft. The rack 7 is slidably disposed on one side of the container body 1, and the rack 7 meshes with the gear 13. The connecting assembly is disposed on the lower side of the rack 7 and is connected to the lead screw nut 14, which is used to drive the rack 7 to move synchronously through the movement of the lead screw nut 14.
[0035] The connecting assembly consists of a drive block 6 and a connecting rod 3. The drive block 6 is fixedly connected to the lower end of the rack 7, and the connecting rod 3 is fixedly connected to one end of the lead screw nut 14 and one end of the drive block 6.
[0036] In a specific embodiment of this utility model, the container body 1 has an open end and an internal sliding track to accommodate the telescopic movement of the inner box 20. The inner box 20 is slidably connected inside the container body 1 and is used to carry goods. A screw nut 14 is fixed at one end of the inner box 20. The screw nut 14 is threaded onto the screw nut 16. The forward and reverse rotation of the screw nut 16 drives the inner box 20 to slide out or retract. The motor 2 is started to drive the screw nut 16 to rotate, and the screw nut 14 moves along the sliding track 15, causing the inner box 20 to slide out of the container body 1. At the same time, the automatic switch mechanism triggers the sealing plate 11 to open. After loading and unloading, the motor 2 reverses, the inner box 20 retracts, and the sealing plate 11 closes simultaneously. The rack 7 is horizontally slidably disposed on the outside of the container body 1 and meshes with the gear 13. Gear 13 is fixed on the rotating shaft of sealing plate 11. The rotating shaft is hinged to the top of container body 1 through connecting arm 12. Rack 7 is connected to screw nut 14 through driving block 6 and connecting rod 3. When screw nut 14 moves, connecting rod 3 pushes driving block 6 and rack 7 to slide synchronously, driving gear 13 to rotate, thereby controlling the opening and closing angle of sealing plate 11. Through the above design, the built-in box 20 set in container body 1 can slide out and retract flexibly, which is convenient for users to load and unload goods inside the built-in box 20.
[0037] Please refer to the details. Figure 1-5 One end of the container body 1 is fixedly connected to an installation block 4, and one end of the installation block 4 is fixedly connected to a horizontal rod 5. One end of the drive block 6 is provided with a horizontal hole, and the drive block 6 is slidably connected to the circumferential surface of the horizontal rod 5 through the horizontal hole. One end of the horizontal rod 5 is fixedly connected to an anti-detachment plate 8, and the diameter of the anti-detachment plate 8 is larger than the diameter of the horizontal rod 5.
[0038] In this embodiment: the drive block 6 is fixed to the lower end of the rack 7, and a horizontal hole is opened on its side. It is sleeved on the horizontal rod 5 to limit the sliding direction. One end of the connecting rod 3 is welded to the lead screw nut 14, and the other end is hinged to the drive block 6 to ensure that the linear motion of the lead screw nut 14 is converted into the translational force of the rack 7. The horizontal rod 5 is fixed to the side wall of the container body 1 by the mounting block 4. The horizontal hole of the drive block 6 is clearance-fitted with the horizontal rod 5 to ensure that the rack 7 slides only in the horizontal direction. The anti-detachment plate 8 is welded to the end of the horizontal rod 5. Its diameter is larger than that of the horizontal rod 5 body to prevent the drive block 6 from detaching at the extreme position. The horizontal rod 5 and the anti-detachment plate 8 form a physical limit to avoid the mechanism from derailing and enhance the stability of the system.
[0039] Please refer to the details. Figure 1-5The lower inner wall of the moving groove 15 is provided with a limiting groove 24. The lower end of the screw nut 14 is fixedly connected to a limiting rod 23. The limiting rod 23 is slidably connected in the limiting groove 24. One end of the container body 1 is fixedly connected to a motor 2. The output end of the motor 2 is fixedly connected to the screw 16. Multiple disassembly windows 21 are provided on the outer surface of the inner box 20.
[0040] In this embodiment: a limiting groove 24 is opened at the bottom of the moving groove 15, and a limiting rod 23 is welded to the lower end of the lead screw nut 14. The limiting rod 23 slides in the limiting groove 24, thereby restricting the lead screw nut 14 to move only along the axial direction of the moving groove 15, avoiding jamming caused by force deviation of the lead screw 16. The motor 2 is fixed on the outside of the container body 1, and the output shaft is connected to the lead screw 16 through a coupling to provide a power source. Multiple rectangular disassembly windows 21 are opened on the side wall of the inner box 20 to facilitate loading and unloading of goods by forklifts or robotic arms. Two rows of moving rollers 22 are installed at the bottom, and nylon wheels are used to reduce sliding resistance.
[0041] Please refer to the details. Figure 1-5 It also includes two sets of fixing mechanisms. Each set of fixing mechanisms consists of a snap-fit housing 9, a mounting rod 10, a snap-fit rod 18, a positioning groove, a positioning rod 17, and an insertion groove. The snap-fit housing 9 and the mounting rod 10 are respectively fixedly connected to one end of the container body 1 and the sealing plate 11. The insertion groove is opened at one end of the snap-fit housing 9. The snap-fit rod 18 is fixedly connected to one end of the mounting rod 10 and is movably inserted into the insertion groove. The positioning groove is opened at one end of the snap-fit housing 9 and the snap-fit rod 18, and the positioning rod 17 is movably inserted into the positioning groove.
[0042] In this embodiment: the snap-fit shell 9 is welded to both sides of the opening end of the container body 1, and the inside is provided with a plug-in groove; the snap-fit rod 18 is fixed to the end of the mounting rod 10 of the sealing plate 11, and is inserted into the plug-in groove when closed. The positioning rod 17 is inserted laterally into the positioning hole of the snap-fit shell 9 and the snap-fit rod 18 to achieve mechanical locking. After the sealing plate 11 is closed, the positioning rod 17 is manually inserted to complete the double fixation and prevent the vibration during transportation from causing loosening.
[0043] Please refer to the details. Figure 1-5 The lower end of the built-in box 20 is provided with multiple moving rollers 22, and one end of the sealing plate 11 is fixedly connected with multiple pull rods 19.
[0044] In this embodiment: the pull rod 19 is welded to the outer surface of the sealing plate 11 for manual assistance in opening and closing or emergency operation; the moving roller 22 adopts a universal wheel structure with bearings, which supports multi-directional fine adjustment of the built-in housing 20.
[0045] Working principle: When loading or unloading goods is required, the motor 2 drives the lead screw 16 to rotate, and the lead screw nut 14 moves along the moving groove 15, which drives the inner box 20 to slide out of the container box 1. At the same time, the automatic switch mechanism triggers the sealing plate 11 to open. After loading and unloading are completed, the motor 2 reverses, the inner box 20 retracts, and the sealing plate 11 closes synchronously.
[0046] 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 will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A vehicle-mounted container adapted for self-loading and unloading, comprising a container body (1) with one end open, characterized in that: The container body (1) has an inner box (20) slidably connected inside, and a moving groove (15) is opened at one end of the container body (1). A screw nut (14) is fixedly connected to one end of the inner box (20). The screw nut (14) is slidably connected to the moving groove (15). A screw (16) is rotatably connected between the inner walls on both sides of the moving groove (15). The screw nut (14) is threaded to the circumferential surface of the screw (16). An automatic switch mechanism is provided at one end of the container body (1). The automatic switch mechanism is connected to the screw nut (14), and the automatic switch mechanism is used to open and close the opening at one end of the container body (1).
2. A vehicle-mounted container adapted for self-loading and unloading function according to claim 1, characterized in that, The automatic switching mechanism consists of a rack (7), a connecting arm (12), a gear (13), a connecting component, and a sealing plate (11). The connecting arm (12) is fixedly connected to the upper end of the container body (1). The sealing plate (11) is rotatably connected to the near ends of the two connecting arms (12) via a rotating shaft. The gear (13) is fixedly connected to one end of the rotating shaft. The rack (7) is slidably disposed on one side of the container body (1), and the rack (7) meshes with the gear (13). The connecting component is disposed on the lower side of the rack (7) and is connected to the lead screw nut (14) for moving the rack (7) synchronously by moving the lead screw nut (14).
3. A vehicle-mounted container adapted for self-loading and unloading function according to claim 2, characterized in that, The connecting assembly consists of a drive block (6) and a connecting rod (3). The drive block (6) is fixedly connected to the lower end of the rack (7), and the connecting rod (3) is fixedly connected to one end of the lead screw nut (14) and one end of the drive block (6).
4. A vehicle-mounted container adapted for self-loading and unloading function according to claim 3, characterized in that, One end of the container body (1) is fixedly connected to an installation block (4), and one end of the installation block (4) is fixedly connected to a horizontal rod (5). One end of the driving block (6) is provided with a horizontal hole, and the driving block (6) is slidably connected to the circumferential surface of the horizontal rod (5) through the horizontal hole.
5. A vehicle-mounted container adapted for self-loading and unloading function according to claim 4, characterized in that, One end of the horizontal rod (5) is fixedly connected to an anti-detachment plate (8), the diameter of which is larger than the diameter of the horizontal rod (5).
6. A vehicle-mounted container adapted for self-loading and unloading function according to claim 1, characterized in that, The lower inner wall of the moving groove (15) is provided with a limiting groove (24), and the lower end of the screw nut (14) is fixedly connected to a limiting rod (23), which is slidably connected in the limiting groove (24).
7. A vehicle-mounted container adapted for self-loading and unloading function according to claim 1, characterized in that, One end of the container body (1) is fixedly connected to a motor (2), the output end of the motor (2) is fixedly connected to a lead screw (16), and the outer surface of the inner box (20) is provided with multiple disassembly windows (21).
8. A vehicle-mounted container adapted for self-loading and unloading function according to claim 1, characterized in that, It also includes two sets of fixing mechanisms. Each set of fixing mechanisms consists of a snap-fit shell (9), an mounting rod (10), a snap-fit rod (18), a positioning groove, a positioning rod (17), and an insertion groove. The snap-fit shell (9) and the mounting rod (10) are respectively fixedly connected to one end of the container body (1) and the sealing plate (11). The insertion groove is opened at one end of the snap-fit shell (9). The snap-fit rod (18) is fixedly connected to one end of the mounting rod (10). The snap-fit rod (18) is movably inserted into the insertion groove. The positioning groove is opened at one end of the snap-fit shell (9) and the snap-fit rod (18). The positioning rod (17) is movably inserted into the positioning groove.
9. A vehicle-mounted container adapted for self-loading and unloading function according to claim 8, characterized in that, The lower end of the built-in box (20) is provided with multiple moving rollers (22), and one end of the sealing plate (11) is fixedly connected with multiple pull rods (19).