Side-turning self-discharging container
By designing a side-tipping self-unloading freight container and adopting structures such as a frame, a tipping box, and a lifting system, the problems of insufficient rigidity and increased weight of long freight containers have been solved, achieving standardization and lightweighting of the self-unloading function and improving transportation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN YUANGE MASCH EQUIP CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-21
AI Technical Summary
Existing self-unloading cargo containers lack rigidity when they are long enough, which leads to deformation. At the same time, the increased weight of moving parts affects the overall lightweight and flexibility.
A side-tipping self-unloading cargo container was designed, which adopts a frame, a tipping container, a lifting system, a lower locking block, an upper locking block, an opening and closing door, an end plate, door pillars and pillar guards. The container is tipped over for unloading through a hydraulic lifting system, and pillar guards are used during the tipping process to prevent cargo from leaking out, thereby enhancing the overall rigidity and lightweight.
It achieves self-unloading function while meeting national standards, and at the same time improves the overall rigidity and lightweight of the cargo container, prevents cargo leakage, and improves transportation efficiency.
Smart Images
Figure CN224145833U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of cargo transportation vehicles, and specifically relates to a bulk cargo container that can be flipped to the side to achieve self-unloading. Background Technology
[0002] Freight transportation is an essential activity in people's production and daily life, bringing great convenience. Therefore, with the diversification of transport vehicles, freight transportation, especially bulk cargo transportation, is gradually transitioning to containerized transportation and trending towards self-unloading containerized transportation. Because containerized transportation is not classified as a transport vehicle and its management is not standardized, various types of freight containers and self-unloading freight containers have emerged, causing a chaotic freight container market and disrupting transportation order. In response to this chaotic situation, the state has issued relevant regulations. Freight containers that do not meet the regulations are considered modified vehicles and require approval from the vehicle management department. Among the most important recent regulations are: 1. Self-unloading road bulk cargo containers that can tip over entirely to the side or rear are temporarily not accepted; 2. For containers that meet the requirement of "hydraulic devices placed inside the container, enabling the container to automatically unload," only the bottom plate and other partial structures are tilted (but the container corners and frame remain fixed) – these are classified as "internal tipping self-unloading containers." The application for "road bulk cargo container" or "partially structured side-tipping road bulk cargo container" is accepted. To comply with national regulations regarding self-unloading cargo containers, the applicant previously filed a Chinese patent application (application number: 2024200136566), which proposed a cargo container including a frame, a tipping container, opening and closing doors, and a lifting system. This essentially solved the problem of enabling self-unloading of bulk cargo while meeting relevant national regulations. However, in practical application, it was found that this prior application's technical solution resulted in insufficient overall rigidity and container deformation when the cargo container's length exceeded a certain dimension. Therefore, the applicant filed another prior application (application number: 2024207102363) to address the overall rigidity issue. However, in practical application, a new problem was discovered: the excessive weight added to moving parts resulted in inflexible lifting or unloading movements and increased the overall weight of the cargo container, negatively impacting its overall lightweight design. Summary of the Invention
[0003] To address the aforementioned deficiencies in prior Chinese patent applications, this application proposes a cargo container that both complies with relevant national regulations and fulfills the requirements for side-tipping self-unloading. The specific technical solution is a side-tipping self-unloading cargo container, comprising a frame, a tipping container, and a lifting system. Its features include: a lower locking block and an upper locking block installed on the frame; the lower locking block is installed at the bottom of the frame, located at the bottom corner, and fixedly connected to the frame; the upper locking block is installed on the frame, located at the top corner, and fixedly connected to the frame; the frame also has an opening / closing door installed on its side, i.e., on the left or right side in the vehicle's direction of travel; the top of the opening / closing door is hinged to the frame and can swing or rotate around the hinge; the lower part of the opening / closing door is locked to the bottom longitudinal beam of the frame via a latch, enabling locking and unlocking. The box frame is also equipped with end plates, which are installed at the front and rear ends of the box frame and connected to the box frame. The box frame is also equipped with door uprights, which are installed inside the box frame, with their lower ends connected to the lower longitudinal beam or lower transverse beam of the box frame and their upper ends connected to the upper longitudinal beam of the box frame. A door upright cover is also installed at the lower part of the door upright, which is installed on the door upright and surrounds the lower part of the door upright. It can move together with the door upright at the lower part of the door upright, and the door upright cover closely matches the door upright hole located at the junction of the bottom of the tilting box and the door upright, so that when the tilting box is tilted for unloading, the goods inside the box will not leak out from the junction of the door upright hole on the bottom plate of the tilting box. The door upright cover has a curved shape, matching the movement trajectory of the edge of the door upright hole on the bottom plate of the tilting box. This movement trajectory is the movement trajectory of the tilting box when it rotates along the hinge edge.
[0004] The tilting box is mounted on a frame and located within the frame's inner cavity. One longitudinal bottom side of the tilting box is hinged to a longitudinal beam of the frame on the same side. The tilting box includes end plates (front and rear), an upper edge beam, a bottom plate, a bottom beam, and upright plates. The end plates are installed at the front and rear ends of the tilting box, forming a near-triangular shape, with the two right-angled sides of the triangle connected to the bottom plate and the upright plate, respectively. The upper edge beam is installed along the upper edge of the upright plate, connecting to the upright plate, and its two ends are connected to the end plates and the frame. The bottom box plate is installed at the bottom of the tilting box, connected to the box end plate and the upright box plate, and connected to the box bottom beam; the bottom box plate is also provided with a box diagonal brace, which is located on one side of the lifting support. The box diagonal brace is installed inside the tilting box, with its lower end connected to the bottom box plate and / or the bottom beam, and its upper end connected to the upper edge beam of the tilting box; the bottom box plate is equipped with a lifting support, which is installed between the bottom box plate and the upright box plate, and protrudes from the upper surface of the bottom box plate. It is a hollow structure and hinged to the lifting element.
[0005] The lifting system is mounted on a frame and includes a hydraulic pump, a hydraulic directional valve, an oil tank, a hydraulic cylinder, a drive motor, and a control device. The hydraulic pump is mounted on the frame, connected to the frame, and connected to the drive motor. The hydraulic directional valve is connected to the hydraulic pump, hydraulic cylinder, and oil tank via an oil circuit, and is also connected to the control device, enabling it to change the flow direction of the hydraulic oil. The oil tank, mounted on the frame, is a hollow cavity capable of holding hydraulic oil, connected to the frame, and connected to the hydraulic pump and return oil pipe via an oil circuit. The hydraulic cylinder is mounted on the frame, located at the bottom of the frame, hinged to the bottom of the frame, and located below the inner cavity of the lifting support on the tilting platform, extending into the lifting support and hinged to it. The drive motor is mounted near the hydraulic pump, connected to the pump, and drives the pump. It is also connected to the control device, enabling it to change its operating state under the control of the control device. The control device is a wired or wireless controller capable of controlling the operating state of the drive motor and the hydraulic directional valve, connected to a power source, and connected to both the drive motor and the hydraulic directional valve.
[0006] Furthermore, the lower locking block is a locking block that conforms to international container regulations.
[0007] Furthermore, the opening and closing door is either a single door or a combination of multiple smaller doors.
[0008] Furthermore, the box end plate is a partial cover, meaning that the box end plate only covers a local area of the box frame end, and together with the flip box end, it forms a complete cover of the box frame end.
[0009] Furthermore, there is more than one gatepost.
[0010] Furthermore, the box brace has one or more components.
[0011] Furthermore, there is one or more lifting supports.
[0012] Beneficial effects
[0013] The beneficial effects of this invention are that it can achieve self-unloading function while meeting relevant national standards, and at the same time, it overcomes the defects of poor overall rigidity when the cargo box is long, which makes it impossible to achieve lightweight cargo box. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall appearance structure of the present invention.
[0015] Figure 2 This is a schematic diagram of the tilting box in its tilted-side-open position with the door open.
[0016] Figure 3 This is a schematic diagram of the internal structure of the box in this invention.
[0017] Figure 4 This is a schematic diagram showing the position of the door posts when the tilting box is tilted to the side.
[0018] 1. Lower locking block, 2. Box frame, 3. Upper locking block, 4. Opening and closing door, 5. End plate, 6. Tilting box, 7. Box diagonal brace, 8. Lifting support, 9. Lifting system, 10. Door post guard, 11. Door post, 21. Box frame beam, 61. Box frame, 62. Box end plate, 63. Upper edge beam, 64. Bottom box plate, 65. Box bottom beam, 66. Door post hole, 67. Box upright plate. Detailed Implementation
[0019] To better illustrate the technical solution of the present invention, specific embodiments of the present invention will now be described in conjunction with the accompanying drawings, such as... Figure 1-4In this example, based on a prior Chinese patent application (application number: 2024200136566), hereinafter referred to as the "prior application," the container frame of the prior application is selected as the container frame 2 in this example. A container upper and lower locking block conforming to international standards and commonly used in this industry is installed on the container frame 2, serving as the upper locking block 3 and lower locking block 1 in this example, respectively. Using a commonly used method in this industry, the lower locking block 1 is installed at the bottom of the container frame 2, located at the bottom corner of the container frame 2, and is fixedly connected to the container frame 2. The upper locking block 3 is installed on the container frame 2, located at the top corner of the container frame 2, and is fixedly connected to the container frame 2. To reduce the weight of the tilting container 6 and thus reduce the load during unloading, an opening and closing door 4 is also installed on the container frame 2. The opening and closing door 4 is installed... The door 4 is mounted on the side of the frame 2, that is, on the left or right side in the direction of vehicle travel. The top of the door 4 is hinged to the top longitudinal beam of the frame 2 and can swing or rotate around the hinge. The lower part of the door is locked to the bottom longitudinal beam of the frame 2 via a latch, enabling locking and opening. In this example, a combination of multiple doors commonly used in the industry is selected for the door 4, which facilitates opening and closing and reduces manufacturing difficulty. In this example, the earlier-applied approach is used, with end plates 5 installed on the frame 2 at both the front and rear ends, connecting to the frame 2. To improve the overall strength and rigidity of the frame 2, a door post 11 is provided on the frame 2. The door post 11 is installed inside the frame 2, with its lower end connected to the frame. The box frame beam 21 of box frame 2 is connected, and its upper end is connected to the upper longitudinal beam of box frame 2. In order to achieve movement without interfering with the door column when the tilting box 6 is tilted for unloading, a column cover 10 is installed on the lower part of the door column 11. The column cover 10 is installed on the door column 11 and surrounds the lower part of the door column 11, so that it can move together with the lower part of the door column 11. At the same time, the column cover 10 closely matches the door column hole 66 located at the junction of the bottom of the tilting box 6 and the door column 11, so that when the tilting box 6 is tilted for unloading, the goods inside the box will not leak out from the junction of the column cover 10 and the door column hole 66 on the bottom box plate 64 of the tilting box 6. In this example, the column cover 10 is selected to be curved in shape, which matches the door column hole on the bottom box plate 64 of the tilting box 6. The motion trajectory of edge 66 is fitted, which is the motion trajectory of the flip box 6 when it rotates along the hinged edge; in this example, the flip box 6 is installed on the box frame 2 according to the mode of the prior application and is located in the inner cavity of the box frame 2. One longitudinal bottom side of the flip box 6 is hinged to the lower longitudinal beam of the box frame 2 on the same side; that is, the outer edge of the bottom box plate 64 on the opening side of the flip box 6 is hinged to the lower longitudinal beam of the box frame 2; the flip box 6 includes box end plates 62 (front box end plate and rear box end plate), upper edge beam 63, bottom box plate 64, bottom beam 65 and upright box plate 67; the box end plates 62 are installed at the front and rear ends of the flip box 6, forming a triangular shape, which facilitates flipping and unloading. The two right-angled sides of the triangle are connected to the bottom box plate 64 and the upright box plate 67 respectively;The upper edge beam 63 is installed on the upper edge of the upright box plate 67 and connected to the upright box plate 67. Both ends are connected to the box end plate 62 and the box frame 61. The bottom box plate 64 is installed at the bottom of the tilting box 6, connected to the box end plate 62 and the upright box plate 67, and connected to the box bottom beam 65. To avoid interference with the box frame 2 while improving the overall strength and rigidity of the tilting box 6, a box diagonal brace 7 is provided on the bottom box plate 64. The box diagonal brace 7 is located inside the tilting box 6 and on the upright box plate 67. On one side, the lower end is connected to the bottom box plate 64 and / or the bottom beam 65, and the upper end is connected to the upper edge beam 63 of the tilting box 6; at the same time, a lifting support 8 is installed on the bottom box plate 64 and located below the box diagonal brace 7. This increases the rigidity of the tilting box 6 and helps the lifting support 8 to distribute the lifting force of the lifting element to other parts of the tilting box 6, avoiding load concentration and causing local damage to the tilting box 6; the lifting support 8 is installed between the bottom box plate 64 and the upright box plate 67 and protrudes outwards. The upper surface of the bottom box plate 64 is hollow, thus accommodating and hinged to the lifting elements. In this example, a previously applied lifting system is used as the lifting system 9. The lifting system 9 is mounted on the box frame and is a commonly used hydraulic lifting system in this industry, including a hydraulic pump, hydraulic directional valve, oil tank, drive motor, and control device. In this example, the hydraulic pump, hydraulic directional valve, oil tank, drive motor, and control device are mounted on the box frame 2, located between the box frame end plate 5 and the box end plate 62, and connected in a manner commonly used in this industry. In this example, hydraulic cylinders are mounted on the box frame beam 21 and hinged to it, positioned below the lifting support 8 of the tipping box 6. The piston rod of the hydraulic cylinder is hinged to the lifting support 8. In this example, two hydraulic cylinders are used and connected to other hydraulic components in a manner commonly used in this industry. The number of lifting elements, i.e., the number of hydraulic cylinders, can be selected according to the length of the cargo box. This completes the implementation of the invention.
[0020] In application, during loading or transportation, the frame 2 is placed on the skeleton vehicle in the industry-standard manner and connected to the skeleton vehicle via the lower locking block 1. The skeleton vehicle is towed by a tractor to achieve the purpose of transporting goods. When unloading is required upon arrival at the destination, the latch at the lower edge of the opening and closing door 4 is opened, and the lifting system 9 is activated. The lifting system 9 drives the hydraulic cylinder to lift one side of the upright plate 67 of the tilting box 6 and tilt it around the hinge axis, so that the goods inside the tilting box 6 flow to the opening side of the tilting box 6, that is, the side consistent with the opening and closing door 4, and flow out through the opening and closing door 4 to be unloaded to the outside of the cargo container, thus achieving unloading. After unloading is completed, the lifting system 9 is operated in reverse, the piston rod of the hydraulic cylinder retracts, and the upright plate 67 of the tilting box 6 falls down until the bottom of the tilting box 6 contacts the bottom frame beam 21 of the frame 2, locking the lower latch of the opening and closing door 4, so that the next round of loading and transportation can begin.
Claims
1. A roll-over dump cargo box, said cargo box comprising a box frame, a roll-over box and a lift system; characterized by: The frame is equipped with a lower locking block and an upper locking block; the lower locking block is installed at the bottom of the frame, located at the bottom corner, and is fixedly connected to the frame; the upper locking block is installed on the frame, located at the top corner, and is fixedly connected to the frame; the frame is also equipped with an opening and closing door, which is installed on the side of the frame, that is, the left or right side in the direction of vehicle travel; the top of the opening and closing door is hinged to the frame and can swing or rotate around the hinge, opening and closing the door. The lower part of the box is locked and opened by fastening it to the bottom longitudinal beam of the box frame; the box frame is also equipped with door uprights, which are installed inside the box frame, with their lower ends connected to the lower longitudinal beam or lower transverse beam of the box frame and their upper ends connected to the upper longitudinal beam of the box frame; the tilting box is installed on the box frame and located in the inner cavity of the box frame, with one longitudinal bottom side of the tilting box hinged to the longitudinal beam of the box frame on the same side; the lifting system is installed on the box frame and includes a hydraulic pump, a hydraulic directional valve, an oil tank, a hydraulic cylinder, and a drive mechanism. The system includes a drive motor and a control device. The hydraulic pump is mounted on the frame and connected to it, as well as to the drive motor. The hydraulic directional valve is connected to the hydraulic pump, hydraulic cylinder, and oil tank via an oil circuit, and is also connected to the control device, enabling it to change the flow direction of the hydraulic oil. The oil tank, mounted on the frame, is a hollow cavity capable of holding hydraulic oil, connected to the frame, and connected to the hydraulic pump and return oil pipe via an oil circuit. The hydraulic cylinder is mounted on the frame and located at the bottom of the frame, hinged to the bottom of the frame, and located below the inner cavity of the lifting support on the tilting box, extending into the lifting support and hinged to it. The drive motor is mounted near the hydraulic pump and connected to it, enabling it to drive the hydraulic pump. It is also connected to the control device, allowing the control device to change the operating state of the drive motor. The control device is a wired or wireless controller capable of controlling the operating state of the drive motor and the hydraulic directional valve, connected to a power source, and connected to both the drive motor and the hydraulic directional valve.
2. A roll-off dump cargo box as defined in claim 1 wherein: The tilting box includes end plates, an upper edge beam, a bottom plate, a bottom beam, and a vertical plate. The end plates are installed at the front and rear ends of the tilting box, forming a near-triangular shape, with the two right-angled sides of the triangle connected to the bottom plate and the vertical plate, respectively. The upper edge beam is installed along the upper edge of the vertical plate, connecting to the vertical plate, and its two ends are connected to the end plates and the box frame. The bottom plate is installed at the bottom of the tilting box, connecting to the end plates and the vertical plate, and also to the bottom beam. The bottom plate is also equipped with a diagonal brace, which is located on one side of the lifting support. The diagonal brace is installed inside the tilting box, with its lower end connected to the bottom plate and / or the bottom beam, and its upper end connected to the upper edge beam. A lifting support is installed on the bottom plate, between the bottom plate and the vertical plate, protruding from the upper surface of the bottom plate, and is a hollow structure hinged to the lifting element.
3. A roll-off dump cargo box as defined in claim 1 wherein: The lower locking block is a locking block that conforms to international container regulations.
4. A roll-off dump cargo box as defined in Claim 1 wherein: The aforementioned door is either a single, integral door or a combination of multiple smaller doors.
5. A roll-off dump cargo box as defined in claim 2 wherein: The box end plate is a partial cover, meaning that the box end plate only covers a local area of the box frame end, and together with the flip box end, it forms a complete cover of the box frame end.
6. A roll-off dump cargo box as defined in claim 1 wherein: There is one or more gateposts.
7. A roll-off dump cargo box as defined in claim 2 wherein: There is one or more inclined supports for the box.
8. A roll-off dump cargo box as described in claim 1 wherein: There is one or more lifting supports.