30-foot self-discharging container

By designing a self-unloading container, the back panel and side-opening door structure enable the side unloading of bulk materials, solving the problems of insufficient space utilization and safety in the transportation of large-sized containers, and improving unloading efficiency and road condition adaptability.

CN116142647BActive Publication Date: 2026-04-21BAOTOU NORTH VENTURE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BAOTOU NORTH VENTURE
Filing Date
2021-11-23
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing large-size open-top containers have problems when transporting bulk materials, such as insufficient utilization of the skeleton vehicle's length space, poor adaptability to road conditions due to exceeding height limits, and the need for transfer equipment for unloading, which poses safety hazards.

Method used

Design a self-unloading container with two side walls and a base frame structure. The lower part of the side walls has windows and a spine unit and a side door unit inside. Bulk goods are unloaded by tilting the spine plate and sliding down and opening the side door, eliminating the need for transfer equipment and improving safety and unloading efficiency.

Benefits of technology

It enables side self-unloading of bulk materials, reduces container height, improves unloading efficiency and road condition adaptability, reduces costs, and enhances safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a self-unloading container, comprising two side walls and a base frame; windows are provided at the lower part of the side walls; the self-unloading container further includes: a spine unit disposed inside the container; the spine unit includes a spine plate; the spine plate is disposed along its length on the base frame, forming an isosceles triangular structure with the base frame; a side-opening door unit disposed on the side wall; the side-opening door unit matches the window; the side-opening door unit is configured to be openable and closable, and is configured to seal the window. The self-unloading container of this invention can realize the function of self-unloading internal bulk materials from the side of the container, and can maintain the stability of the container during unloading.
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Description

Technical Field

[0001] This invention relates to a container, and more particularly to a self-unloading container. Background Technology

[0002] A container body is generally assembled from components including the base frame, side walls (or side panels), top side beams, bottom side beams, first end plate, second end plate, top corner pieces, and bottom corner pieces.

[0003] Currently, there are two problems in China when using large-size open-top containers in conjunction with skeleton trucks to transport bulk materials:

[0004] 1) When used together, the length space of the skeleton vehicle cannot be fully utilized, and the sum of the heights of the two exceeds the height limit of 4000mm in GB / T1589-2016. The road adaptability is poor, and detours are required when encountering height restriction frames during transportation, which increases the user's operating costs.

[0005] 2) During unloading, the freight yard needs to be equipped with transfer equipment and a rear-tipping frame truck. The transfer equipment is used to lift the large-foot open-top container onto the rear-tipping frame truck, and then the rear-tipping function of the frame truck is used to lift the front of the container, allowing the internal bulk materials to be poured out from the rear door of the container. This operation also increases the user's container usage costs, and during the rear-tipping process, the container's center of gravity will rise, often resulting in vehicle tipping accidents. Summary of the Invention

[0006] In view of this, the object of the present invention is to provide a self-unloading container. The self-unloading container of the present invention can realize the function of unloading internal bulk materials from the side of the container, maintain the stability of the container during unloading, and shorten unloading time, improve unloading efficiency, and reduce costs. Furthermore, the present invention can reduce the container height (e.g., from 2896mm to 2580mm) without affecting the container volume, load capacity, and tare weight, thus improving road adaptability. In addition, the self-unloading container of the present invention can be a large-size container, such as a 30-foot container. The present invention can form a 30-foot self-unloading container whose tare weight and load capacity are comparable to those of a traditional 30-foot open-top container, while being simpler to use. The object of the present invention is achieved through the following technical solutions.

[0007] This invention provides a self-unloading container, which includes two side walls and a base frame; the lower part of the side walls is provided with windows; the self-unloading container also includes:

[0008] A spine unit is disposed inside the self-unloading container; the spine unit includes a spine panel; the spine panel is disposed on the underframe along its length and forms an isosceles triangle structure with the underframe.

[0009] A side-opening door unit is installed on the side wall; the side-opening door unit matches the window; the side-opening door unit is configured to open and close, and is also configured to seal the window. This allows the side-opening door unit, in conjunction with the funnel-shaped spine unit inside the container, to allow bulk cargo to slide down the inclined spine under its own weight and be self-unloaded outside the container via the side-opening door unit. This eliminates the need for transfer equipment, rear-tipping frame vehicles, or other similar equipment, improving safety, shortening unloading time, and increasing unloading efficiency. Furthermore, this structure allows for a lower container height, ensuring that the overall height is less than the highway clearance requirements when used with existing frame vehicles, thus providing good road adaptability.

[0010] In this invention, the structure of the isosceles triangle can be a structure that is close to that of an isosceles triangle.

[0011] According to the self-unloading container of the present invention, preferably, the two included angles formed between the back panel and the underframe are 40° to 60°. This facilitates the sliding of bulk cargo and the self-unloading outside the container. Preferably, the two included angles formed between the back panel and the underframe are 45° to 50°.

[0012] The two included angles formed between the spine plate and the base frame are the two equal angles of an isosceles triangle.

[0013] The self-unloading container according to the present invention is preferably:

[0014] The two included angles formed between the spine plate and the base frame are 45-50°.

[0015] The top of the spine plate is curved;

[0016] The spine panel is a one-piece molded structure. This design improves the stability of the spine unit structure and facilitates the sliding of bulk cargo outside the container. Furthermore, the curved top of the spine panel allows for the installation of connecting seats, making it easier to connect the spine panel to the diagonal tie rods.

[0017] According to a specific embodiment of the present invention, the two included angles formed between the spine plate and the base frame are 45°.

[0018] According to the self-unloading container of the present invention, preferably, the spine unit further includes a spine keel; the spine keel is disposed below the top of the spine panel along its length direction, and its two sides are respectively connected to the spine panel; the spine keel is arranged parallel to the underframe. This is beneficial to the stability of the spine unit structure.

[0019] In this invention, the spine plate and the spine keel can be welded together.

[0020] According to the self-unloading container of the present invention, preferably, the self-unloading container further includes diagonal bracing and triangular bracing;

[0021] One end of the diagonal brace is connected to the side wall, and the other end is connected to the top of the spine plate; the horizontal height of the end of the diagonal brace connected to the side wall is greater than the horizontal height of the end of the diagonal brace connected to the top of the spine plate.

[0022] One end of the triangular brace is connected to the side wall, and the other end is connected to the spine plate; the connection between the triangular brace and the spine plate corresponds to the connection between the spine keel and the spine plate; the triangular brace is located below the diagonal tie rod. This allows for a rigid connection between the spine plate and the side wall using the diagonal tie rod and the triangular brace, increasing the rigidity of the side wall and preventing it from expanding outwards under pressure.

[0023] In some embodiments, a vertical reinforcing plate is provided on the side wall, one end of the diagonal brace is connected to the vertical reinforcing plate, and the other end is connected to the top of the spine plate; and the horizontal height of the end of the diagonal brace connected to the vertical reinforcing plate is greater than the horizontal height of the end of the diagonal brace connected to the top of the spine plate.

[0024] In other embodiments, a transverse reinforcing plate is provided on the side wall, one end of the triangular brace is connected to the transverse reinforcing plate, and the other end is connected to the spine plate, and the horizontal height of the end of the triangular brace connected to the transverse reinforcing plate is greater than the horizontal height of the end of the triangular brace connected to the spine plate.

[0025] In this invention, the diagonal tie rods are configured as multiple rods, evenly distributed and arranged in parallel. The triangular braces are configured as multiple braces, evenly distributed and arranged in parallel. The number of triangular braces may be greater than the number of diagonal tie rods.

[0026] According to the self-unloading container of the present invention, preferably, the side-opening door unit includes:

[0027] A door frame is provided on the side wall surrounding the window and matches the window.

[0028] A door leaf is provided at the window, the door leaf is configured to be able to be opened and closed, and the door leaf is configured to be able to seal the window;

[0029] The door hinge assembly has one end attached to the door leaf and the other end attached to the door frame; the door hinge assembly is used to movably connect the door leaf and the door frame.

[0030] A locking rod assembly is provided on the door leaf and the door frame; the locking rod assembly is used to open and lock the door leaf. This allows the side-opening door unit to work in conjunction with the spine unit, enabling bulk cargo to slide down the inclined spine plate under its own weight and be unloaded outside the container via the side-opening door unit.

[0031] In some embodiments, one end of the door hinge assembly is located at the top of the door leaf, and the other end is located at the top of the door frame, for allowing the door leaf to open upwards; the locking rod assembly is located at the lower part of the door leaf and on both sides of the door frame. This can form an upward-opening side door.

[0032] In other embodiments, one end of the door hinge assembly is located at the lower part of the door leaf, and the other end is located at the lower part of the door frame, allowing the door leaf to open downwards; the locking rod assembly is located at the upper part of the door leaf and on both sides of the door frame. This creates a downward-opening side door.

[0033] Because the side walls are thin and lack sufficient strength, a door frame is needed as a reinforcing plate to house the door leaf and other components, thereby enhancing the stability of the side-opening door of the container and the side walls. In this invention, the door frame can be a rectangular frame structure.

[0034] The self-unloading container according to the present invention is preferably:

[0035] One end of the door hinge is located at the top of the door leaf, and the other end is located at the top of the door frame, for the purpose of allowing the door leaf to open upwards;

[0036] The locking rods are located at the bottom of the door leaf and on both sides of the door frame. This creates an upward-opening side door, which facilitates the complete unloading of materials from the container.

[0037] According to the self-unloading container of the present invention, preferably, the locking bar comprises:

[0038] The door frame has two locks, one on each side; the two locks are positioned opposite each other and their central axes coincide.

[0039] A locking bar, which is configured as a single bar, with both ends of the locking bar being able to be inserted into two lock heads respectively;

[0040] A handle is provided on the door leaf; the handle is connected to the locking rod and is positioned above the locking rod; the handle is used to control the locking rod assembly.

[0041] A fixing seat, which is disposed on the door leaf, is used to limit the locking rod.

[0042] This way, turning the handle allows the locking bar to disengage from the lock head, thus opening the door; turning the handle in the opposite direction allows the locking bar to insert into the lock head, thus locking the door.

[0043] In this invention, the structure of the lock head and the connection method between the lock bar and the lock head can adopt those known in the art.

[0044] According to one embodiment of the present invention, the locking rod is cylindrical. This facilitates installation and use.

[0045] In some embodiments, the fixing base includes a concave portion and two extended portions; the two ends of the concave portion are respectively connected to the two extended portions; the concave portion is disposed on the outer side of the locking rod; the two extended portions are respectively fixedly connected to the door leaf by bolts. This structure is beneficial for limiting the locking rod.

[0046] The self-unloading container according to the present invention is preferably:

[0047] The fixing base is provided in at least two parts, and is evenly distributed;

[0048] The door hinge assembly includes at least two door hinges, and the at least two door hinges are evenly distributed.

[0049] Each side wall has multiple windows; correspondingly, multiple side-opening door units are provided; the shapes and sizes of the side-opening door units on both side walls correspond. This is beneficial to the stability of the structure and improves unloading efficiency.

[0050] According to one embodiment of the present invention, three fixing seats are provided and evenly distributed, with the width of the middle fixing seat being smaller than the width of the two fixing seats on both sides. According to another embodiment of the present invention, four fixing seats are provided and evenly distributed, with the width of the two middle fixing seats being smaller than the width of the two fixing seats on both sides.

[0051] According to one embodiment of the present invention, the door hinge assembly includes two door hinges, which are evenly distributed. According to another embodiment of the present invention, the door hinge assembly includes three door hinges, which are evenly distributed. According to yet another embodiment of the present invention, the door hinge assembly includes four door hinges, which are evenly distributed.

[0052] The number of side doors for the container can be set according to the size of the container. In some embodiments, three side doors are provided on each side wall. In other embodiments, four side doors are provided on each side wall. According to a preferred embodiment of the invention, four side doors are provided on each side wall.

[0053] The self-unloading container according to the present invention is preferably:

[0054] The height of the self-unloading container is set to not exceed 2580mm;

[0055] The self-unloading container also includes a top side beam, a bottom side beam, and multiple corner pieces. The multiple corner pieces are respectively located at the four top corners and four bottom corners of the self-unloading container, as well as at the intersection of the center line between at least some of the adjacent windows and the top side beam, and at the intersection of the center line between at least some of the adjacent windows and the bottom side beam.

[0056] The self-unloading container of the present invention can reduce the height from the traditional 2896mm to 2580mm without affecting the container volume, load capacity and weight. When used in conjunction with existing skeleton vehicles, the total height is less than the highway clearance requirements, and it has good road condition adaptability.

[0057] In this invention, corner fittings for lifting and fixing can be provided to adapt to existing transportation methods and hoisting equipment.

[0058] According to a specific embodiment of the present invention, each side wall of a 30-foot self-unloading container is provided with four windows. The container is provided with sixteen corner brackets, eight of which are respectively located at the top and bottom corners of the container. The other four corner brackets can be respectively located at the intersection of the center line between the first and second windows and the top side beam, and at the intersection of the center line between the first and second windows and the bottom side beam. The remaining four corner brackets can be respectively located at the intersection of the center line between the third and fourth windows and the top side beam, and at the intersection of the center line between the third and fourth windows and the bottom side beam. This facilitates the lifting and transportation of the container.

[0059] The self-unloading container of this invention utilizes side-opening door units on each side wall and an inclined funnel-shaped spine unit in the middle of the container to achieve self-unloading of internal bulk materials from the side of the container. This eliminates the need for unloading and transshipment, maintains the stability of the container during unloading, and shortens unloading time, improves unloading efficiency, and reduces costs. Furthermore, this invention can reduce the container height (e.g., from the traditional 2896mm to 2580mm) without affecting the container's volume, load capacity, and weight, resulting in a total height less than highway clearance requirements and improved road adaptability. Moreover, the self-unloading container of this invention can be a large-sized container, such as a 30-foot container. This invention can create a 30-foot self-unloading container with a weight and load capacity comparable to a traditional 30-foot open-top container, while offering simpler operation. In addition, the self-unloading container of this invention is easy to lift and can effectively utilize the length of the skeleton vehicle and the space between the skeleton vehicle and the tractor after coupling, adapting to existing transportation methods and lifting equipment, demonstrating strong versatility. Attached Figure Description

[0060] Figure 1 This is a structural schematic diagram of a self-unloading container according to the present invention.

[0061] Figure 2 This is a schematic diagram illustrating the transportation status of a self-unloading container according to the present invention.

[0062] Figure 3 This is a schematic diagram of a side-opening door unit according to the present invention.

[0063] Figure 4 This is a schematic diagram of a spine unit according to the present invention.

[0064] Explanation of reference numerals in the attached figures:

[0065] 1-Tractor, 2-Self-unloading container, 21-Side wall, 22-Underframe, 23-Corner fitting, 210-Spine unit, 211-Spine board, 212-Spine keel, 220-Side door unit, 221-Door frame, 222-Door leaf, 223-Door hinge assembly, 224-Locking rod assembly, 2241-Locking head, 2242-Locking rod, 2243-Handle, 2244-Fixed seat, 213-Diagonal brace, 214-Triangular brace, 3-Frame vehicle. Detailed Implementation

[0066] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0067] Example 1

[0068] Figure 1 This is a structural schematic diagram of a self-unloading container according to the present invention.

[0069] like Figure 1 As shown, the self-unloading container 2 of the present invention is assembled from components such as two side walls 21, a spine unit 210, a diagonal brace 213, a side door unit 220, a base frame 22, a top side beam, a bottom side beam, corner pieces 23, a first end plate, and a second end plate.

[0070] The lower part of each of the two side walls 21 is provided with multiple windows (not shown), for example, four windows. The four windows can be of different sizes; for example, the length of the two middle windows can be greater than the length of the two side windows. The multiple windows on the two side walls 21 are arranged correspondingly.

[0071] Figure 4 This is a schematic diagram of a spine unit according to the present invention.

[0072] like Figure 1 and Figure 4 As shown, the spine unit 210 is disposed inside the self-unloading container 2. The spine unit 210 includes a spine plate 211 and a spine keel 212.

[0073] The spine plate 211 is mounted on the base frame 22 along its length, forming an isosceles triangle structure with the base frame 22. This isosceles triangle structure can be approximately isosceles. The two included angles formed between the spine plate 211 and the base frame 22 are both 45°, which are the two equal angles of an isosceles triangle. The top of the spine plate 211 is arc-shaped. The spine plate 211 is a one-piece molded structure.

[0074] The spine keel 212 is positioned below the top of the spine plate 211 along its length, and is connected to the spine plate 211 on both sides. The spine keel 212 is arranged parallel to the base frame 22.

[0075] A connecting seat can be provided at the top of the spine plate 211. Vertical reinforcing plates can be provided on the side wall 21. One end of the diagonal brace 213 is fixed to the vertical reinforcing plate, and the other end of the diagonal brace 213 can be connected to the top of the spine plate 211 via the connecting seat. The horizontal height of the end of the diagonal brace 213 connected to the vertical reinforcing plate on the side wall 21 is greater than the horizontal height of the end of the diagonal brace 213 connected to the top of the spine plate 211. This is beneficial to the stability of the side wall 21 and prevents outward expansion of the side wall 21 under pressure. Multiple diagonal braces 213 can be provided, for example, three. These multiple diagonal braces 213 are arranged in parallel.

[0076] Figure 3 This is a schematic diagram of a side-opening door unit according to the present invention.

[0077] like Figure 1 and Figure 3As shown, a side-opening door unit 220 is mounted on the side wall 21. The side-opening door unit 220 is matched with the window. The side-opening door unit 220 is configured to be able to open and close, and is also configured to be able to seal the window.

[0078] The side-opening door unit 220 includes a door frame 221, a door leaf 222, a door hinge assembly 223, and a locking rod assembly 224.

[0079] The door frame 221 is mounted on the side wall 21 on the outer perimeter of the window and matches the window. The installation of the door frame 221 can improve the stability of the side-opening door unit 220 and the stability of the side wall 21.

[0080] Door 222 is located at the window. Door 222 is configured to be able to open and close, and door 222 is configured to be able to seal the window.

[0081] One end of the door hinge assembly 223 is disposed at the top of the door leaf 222, and the other end is disposed at the top of the door frame 221. The door hinge assembly 223 is used to movably connect the door leaf 222 to the door frame 221 and to allow the door leaf 222 to open upward. The door hinge assembly 223 includes at least two door hinges, which are evenly distributed.

[0082] Locking rod assembly 224 is provided on both sides of door leaf 222 and door frame 221. Locking rod assembly 224 is used to open and lock door leaf 222.

[0083] The locking rod assembly 224 includes a lock head 2241, a locking rod 2242, a handle 2243, and a fixing base 2244. Two lock heads 2241 are provided, each located on one side of the door frame 221. The two lock heads 2241 are positioned opposite each other, with their central axes coinciding. A single locking rod 2242 is provided. Both ends of the locking rod 2242 are designed to be inserted into the two lock heads 2241 respectively. The locking rod 2242 is cylindrical. The handle 2243 is located on the door leaf 222. The handle 2243 is connected to the locking rod 2242 and is positioned above the locking rod 2242. The handle 2243 is used to control the locking rod assembly 224.

[0084] A fixing seat 2244 is disposed on the door leaf 222 to limit the locking rod 224. At least two fixing seats 2244 are provided and evenly distributed; for example, there can be three fixing seats 2244. Each fixing seat 2244 includes a concave portion and two extended portions. The two ends of the concave portion are respectively connected to the two extended portions. The concave portion is disposed on the outer side of the locking rod 2242; the two extended portions are respectively fixedly connected to the door leaf 222 by bolts. This structure facilitates the limiting of the locking rod 2242.

[0085] The number of side-opening door units 220 matches the number of windows. The shape and size of the side-opening door units 220 provided on the two side walls 21 correspond to each other.

[0086] Figure 2 This is a schematic diagram illustrating the transportation status of a self-unloading container according to the present invention.

[0087] The self-unloading container 2 of the present invention can be a 30-foot self-unloading container, such as... Figure 2 As shown, it can effectively utilize the length of the skeleton vehicle 3 and the space between the skeleton vehicle 3 and the tractor 1 after they are coupled together. Without affecting the container's volume, load capacity and weight, it can effectively reduce the height of the container to 2580mm, meet the highway clearance requirements and improve road adaptability.

[0088] like Figure 1 As shown, there are multiple corner fittings 23. These corner fittings 23 are respectively located at the four top corners and four bottom corners of the self-unloading container, as well as at the intersections of the center lines between at least some of the adjacent windows and the top side beam, and at the intersections of the center lines between at least some of the adjacent windows and the bottom side beam. This facilitates the lifting and transportation of the self-unloading container 2, adapts to existing transportation methods and lifting equipment, and reduces user operating costs.

[0089] Example 2

[0090] The only difference from Example 1 is that, as Figure 1 As shown, the self-unloading container 2 also includes a triangular brace 214. A transverse reinforcing plate can be installed on the side wall 21. One end of the triangular brace 214 is fixed to the transverse reinforcing plate, and the other end of the triangular brace 214 is connected to the spine plate 211. This facilitates the stability of the side wall 21. The horizontal height of the end of the triangular brace 214 connected to the transverse reinforcing plate on the side wall 21 is greater than the horizontal height of the end of the triangular brace 214 connected to the spine plate 211.

[0091] The connection between the triangular brace 214 and the spine plate 211 corresponds to the connection between the spine keel 212 and the spine plate 211. This is beneficial to the stability of the side wall 21. The triangular brace 214 is located below the tie rod 213. There are multiple triangular braces 214, which are arranged in parallel and evenly distributed.

[0092] This invention is not limited to the above-described embodiments. Any modifications, improvements, or substitutions that can be conceived by those skilled in the art without departing from the essential content of this invention fall within the scope of this invention.

Claims

1. A 30-foot self-unloading container, comprising two side walls and a base frame; characterized in that, The height of the 30-foot self-unloading container is set to no more than 2580mm; the 30-foot self-unloading container also includes top side beams, bottom side beams and multiple corner fittings; each side wall of the 30-foot self-unloading container is provided with four windows, and the container is provided with sixteen corner fittings, eight of which are respectively provided at the top corner and bottom corner of the container, the other four corner fittings can be respectively provided at the intersection of the center line between the first and second windows and the top side beam, and at the intersection of the center line between the first and second windows and the bottom side beam; the remaining four corner fittings can be respectively provided at the intersection of the center line between the third and fourth windows and the top side beam, and at the intersection of the center line between the third and fourth windows and the bottom side beam; The 30-foot self-unloading container also includes: A spine unit is disposed inside the self-unloading container; the spine unit includes a spine panel; the spine panel is disposed on the underframe along its length and forms an isosceles triangle structure with the underframe; the two included angles formed between the spine panel and the underframe are 45-50°; the spine panel is an integrally formed structure. A side-opening door unit is installed on the side wall; the side-opening door unit matches the window; the side-opening door unit is configured to be able to open and close, and the side-opening door unit is configured to be able to seal the window; four side-opening door units are installed on each side wall; The top of the spine plate is arc-shaped, and a connecting seat is provided on the top; The spine unit also includes a spine keel; the spine keel is disposed below the top of the spine plate along its length direction, and its two sides are respectively connected to the spine plate; the spine keel is disposed parallel to the base frame; The self-unloading container also includes diagonal bracing and triangular bracing; A vertical reinforcing plate is provided on the side wall. One end of the diagonal tie rod is connected to the vertical reinforcing plate, and the other end is connected to the top of the spine plate through a connecting seat. The horizontal height of the end of the diagonal tie rod connected to the vertical reinforcing plate is greater than the horizontal height of the end of the diagonal tie rod connected to the top of the spine plate. A horizontal reinforcing plate is provided on the side wall. One end of the triangular brace is connected to the horizontal reinforcing plate, and the other end is connected to the spine plate. The horizontal height of the end of the triangular brace connected to the horizontal reinforcing plate is greater than the horizontal height of the end of the triangular brace connected to the spine plate. The connection between the triangular brace and the spine plate corresponds to the connection between the spine keel and the spine plate; the triangular brace is located below the diagonal tie rod; The diagonal tie rods are configured as multiple rods, evenly distributed and arranged in parallel; the triangular braces are configured as multiple rods, evenly distributed and arranged in parallel; the number of triangular braces is greater than the number of diagonal tie rods.

2. The 30-foot self-unloading container according to claim 1, characterized in that, The side-opening door unit includes: A door frame is provided on the side wall surrounding the window and matches the window. A door leaf is provided at the window, the door leaf is configured to be able to be opened and closed, and the door leaf is configured to be able to seal the window; The door hinge assembly has one end attached to the door leaf and the other end attached to the door frame; the door hinge assembly is used to movably connect the door leaf and the door frame. A locking rod assembly is provided on the door leaf and the door frame; the locking rod assembly is used to open and lock the door leaf.

3. The 30-foot self-unloading container according to claim 2, characterized in that: One end of the door hinge is located at the top of the door leaf, and the other end is located at the top of the door frame, for the purpose of allowing the door leaf to open upwards; The locking rods are arranged at the bottom of the door leaf and on both sides of the door frame.

4. The 30-foot self-unloading container according to claim 3, characterized in that, The locking lever comprises: The door frame has two locks, one on each side; the two locks are positioned opposite each other and their central axes coincide. A locking bar, which is configured as a single bar, with both ends of the bar being able to be inserted into two lock heads respectively; A handle is provided on the door leaf; the handle is connected to the locking rod and is positioned above the locking rod; the handle is used to control the locking rod assembly. A fixing seat, which is disposed on the door leaf, is used to limit the locking rod.

5. The 30-foot self-unloading container according to claim 4, characterized in that: The fixing base is provided in at least two parts, and is evenly distributed; The door hinge assembly includes at least two door hinges, and the at least two door hinges are evenly distributed. Each side wall has multiple windows; the side-opening door units are provided accordingly; the shape and size of the side-opening door units provided on the two side walls are corresponding.

Citation Information

Patent Citations

  • Two-side unloading arc wrapper sheet hopper wagon special for railway

    CN106740923A

  • Particulate cargo side unloading hopper container

    CN109230004A

  • A material activation machine for activation vibration feeder

    CN201021411Y

  • Self-unloading container

    CN216334278U