End door flipping storage mechanism and foldable container

Abstract

The present invention discloses an end door flipping and accommodating mechanism and a foldable container. The container comprises a box top, a box bottom, a side wall and an end door. A accommodating portion is arranged on the box bottom. The box top and the box bottom are respectively hinged with the side wall to form a loading and unloading space. The end door can be fully opened to form a loading and unloading port. The end door flipping and accommodating mechanism comprises a limit block assembly arranged on the end door and a limit groove arranged at the end of the accommodating portion for limiting the limit block assembly. The limit block assembly comprises a fixed shaft and a limit block rotating around the fixed shaft. The fixed shaft is fixed at a position close to the bottom end of the side wall of the end door. The present invention enables the end door to flip without separating from the container during the folding process when loading and unloading goods through the end door flipping and accommodating mechanism, and the operation is easy and convenient. Moreover, during loading and unloading, only the loading and unloading space can be unfolded to make the end door fully open to form a loading and unloading port, thereby reducing operation obstacles, allowing the loading and unloading operation to be carried out flexibly in multiple directions, and improving the loading and unloading efficiency.

Description

Technical Field

[0001] The invention relates to the field of logistics and transportation, and in particular to an end door flipping and accommodating mechanism and a foldable container. Background Art

[0002] Due to differences in regional economic development, there is a serious imbalance in international trade and shipping worldwide, especially in Asia, North America and Asia-Europe routes. This imbalance has led to a large number of empty containers circulating around the world. In the 1970s, Sea Container, Fallpac AB and Brasco Technik successively launched folding containers, but they all stopped at sample boxes or small-scale production and were not widely used. According to EU statistics, from 2005 to 2009, more than 20% of global shipping containers were empty, and about 40% of land containers were empty. According to a survey by relevant companies, during the use of containers, the idle and transfer time of empty containers accounted for about 56%. In order to solve the problem of empty container transfer, shipping companies have to spend a lot of manpower and material resources; in 2008, the cost of empty container transfer by global shipping companies reached about 33 billion US dollars. In order to reduce the cost increased by the idle and transfer of empty containers, the industry began to develop folding containers.

[0003] The SIO container is a 20-foot foldable dry cargo container developed by the Swiss company SIO Container. It consists of 7 detachable parts. Its empty container weight is heavier than that of an ordinary container. After disassembly, the stacked volume of 6 containers is equivalent to that of an ordinary container. Except for the door end parts connected by hinges, other parts are fixed by locking mechanisms. It is disassembled and assembled by 3 operators with the cooperation of a forklift or auxiliary positioning tooling.

[0004] The folding method of the Fallpac container is to first remove the top plate, then fold the short plate and side plates towards the bottom plate, and finally cover the top plate. Two workers fold or assemble it with the cooperation of a forklift. It is mainly used in railway transportation. Although no obvious technical problems or serious design defects have been found, the heavy weight of the empty container and the low efficiency of transportation and lifting make it difficult to promote and apply.

[0005] Cargoshell containers are made of composite materials. The empty weight of the container is 25% lighter than that of the empty container of Eurocon. The container does not interfere with electronic signals, which is conducive to the installation of electronic equipment such as the global positioning system in the container. The CO2 emissions during the production process are only 1 / 3 of the CO2 emissions during the production of ordinary containers. The container does not need to be painted, which can effectively reduce the environmental pollution caused by painting. The container is insulated and corrosion-resistant, with low maintenance costs. The height after folding is only 1 / 4 of the height in the unfolded state. The door design has also been changed from the original rolling door to the same double-door structure as ordinary containers. When implementing folding and unfolding operations, it can be lifted from a single point in the middle of the container roof to avoid bending and deformation of the roof.

[0006] The Foltainer container is also a 20-foot foldable dry cargo container, and its height after folding is 1 / 3 of its height in the unfolded state. The Foltainer container is similar to the Cargoshell container. Both of their side panels fold inward in an X shape. The difference is that the front and rear ends of the Foltainer container fold inward around the door sill or two hinges under the front end, and the bottom is equipped with springs to reduce the impact force during folding and unfolding. When the Foltainer container is folded, the outer columns of the outer door frame fold with the side panels, and the inner corner columns of the inner door frame fold with the door panel components. After the box is unfolded, the upper lintel beam of the outer door frame and the lower lintel beam of the inner door frame are connected by a small locking rod, so that the inner and outer door frames are connected together. In addition, the door section hinge adopts a special design. A single door leaf is equipped with two rows of hinges, and the two rows of hinges are connected by a connecting plate, so that the door leaf can be flipped around two sets of flip axes, and the door opening angle can reach 270 degrees.

[0007] From the above, it can be seen that for a foldable container, how to set its folding or disassembly method and foldable or disassembly structure as well as the storage method and structure, especially the door, greatly restricts the folding method and folding effect of the container, as well as the operability of loading and unloading operations. Summary of the invention

[0008] The present invention aims to provide an end door turning and accommodating mechanism and a foldable container, which can conveniently turn the end door relative to the bottom of the container and fully open it without disassembling from the container during loading and unloading.

[0009] The technical solution adopted by the present invention is an end door flipping and accommodating mechanism for a container, wherein the container comprises a box top, a box bottom, a side wall and an end door, wherein a accommodating portion for accommodating the end door is arranged on the box bottom, the box top and the box bottom are respectively hinged with the upper end and the lower end of the side wall to form a loading and unloading space, and the end door can be fully opened and accommodated in the accommodating portion to form a loading and unloading port; the end door flipping and accommodating mechanism comprises a limit block assembly arranged on the end door and a limit groove arranged at the end of the accommodating portion for limiting the limit block assembly, wherein the limit block assembly The component includes a fixed shaft and a limit block rotating around the fixed shaft, the fixed shaft is fixed at a position close to the bottom end of the side wall of the end door, when the end door needs to be unfolded, the end door is pulled outward from the accommodating portion, so that the limit block assembly is set in the limit groove, and the end door follows the rotation of the limit block around the fixed shaft and is flipped relative to the bottom of the box to be perpendicular to the bottom of the box, when the end door needs to be accommodated, the limit block assembly is disengaged from the limit groove, and the end door follows the limit block to move inward and be accommodated in the accommodating portion.

[0010] Furthermore, in the end door flipping and accommodating mechanism of the present invention, the limit block is a cylindrical roller, which is arranged on the fixed shaft, and the roller rotates around the fixed shaft.

[0011] Furthermore, in the end door flipping and accommodating mechanism of the present invention, the limit block is a spherical roller, which is arranged on the fixed shaft, and the roller rotates freely around a point on the fixed shaft.

[0012] Furthermore, in the end door flipping and accommodating mechanism of the present invention, the end door includes an end door panel and an end door frame, the box bottom includes a box bottom panel and a box bottom frame, the accommodating structure includes a supporting portion parallel to the box bottom panel and fixedly connected to the box bottom bracket, slideways are arranged on both sides of the supporting portion, and the limiting grooves are arranged at the ends of the slideways.

[0013] Furthermore, in the end door flipping and accommodating mechanism of the present invention, the limiting groove is a C-shaped groove, the groove bottom of the C-shaped groove is lower than the slide, the inner groove wall of the C-shaped groove has a smooth transition to the slide, and when the container needs to be folded, the limiting block is separated from the limiting groove and moves along the slide to be accommodated in the accommodating portion.

[0014] Furthermore, in the end door flipping and accommodating mechanism of the present invention, the limiting groove and the slideway are arranged on the box bottom frame, and when the end door is perpendicular to the box bottom, the end door frame is located between the side wall frames.

[0015] Another object of the present invention is to provide a foldable container, which includes a top, a bottom, two oppositely arranged side walls and two oppositely arranged end doors, the bottom of the box is provided with a receiving portion for accommodating the end doors, the top and the bottom of the box are respectively hinged with the upper end and the lower end of the side walls to form a loading and unloading space, and the end doors can be fully opened and received in the receiving portion to form a loading and unloading port; the container includes the above-mentioned end door flipping and receiving mechanism, the side walls include an upper side wall and a lower side wall hinged to each other, and when the container is in a folded state, the side walls are folded inwardly and received between the top and the bottom of the box.

[0016] Furthermore, in the foldable container of the present invention, the slideways are provided in two groups in parallel vertically, and the front door and the rear door are vertically staggered in the receiving portion.

[0017] Furthermore, in the foldable container of the present invention, the support portion and the slideway are provided in a group, and the upper end door and the lower end door of the front door and the rear end door are respectively provided at two ends of the receiving portion after being folded.

[0018] Beneficial effects: The present invention uses an end door flipping and accommodating mechanism to allow the end door to flip without being separated from the container during the folding process when loading and unloading goods, making the operation easy and convenient. Moreover, during loading and unloading, only the loading and unloading space can be unfolded to make the end door fully open to form a loading and unloading port, reducing operational obstacles, making the loading and unloading operations flexible in all directions, and improving the loading and unloading efficiency. The foldable container can be folded and unfolded by two people, and the container does not need to be disassembled and can be folded quickly. Furthermore, the end door and the side wall are both foldable, further reducing the demand for the work site and making the operation more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the foldable container of the present invention after it is fully unfolded.

[0020] Figure 2 It is a structural schematic diagram of the foldable container of the present invention during the unfolding process.

[0021] Figure 3 The schematic diagram of the structure of the foldable container of the present invention in the folded state

[0022] Figure 4 It is a structural schematic diagram of the foldable container of the present invention during the unfolding process (the end door is not shown).

[0023] Figure 5 It is a structural schematic diagram of the foldable container of the present invention during the unfolding process (the end door is in the storage state).

[0024] Figure 6 for Figure 5 A partial enlarged view of the storage structure of the foldable container of the present invention.

[0025] Figure 7 It is a schematic structural diagram of the bottom support frame of the foldable container of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the bottom support frame of the foldable container of the present invention.

[0027] Fig. 9 for Figure 2 FIG. 1 is a structural schematic diagram of a first auxiliary locking mechanism of a foldable container of the present invention.

[0028] Fig.10 for Figure 8 A partial enlarged view of the storage structure of the foldable container of the present invention.

[0029] Fig.11 It is a schematic structural diagram of the slideway of the foldable container of the present invention.

[0030] Fig.12 for Fig.11 A partial enlarged view of the end of the slideway of the foldable container of the present invention.

[0031] Fig.13 It is a schematic diagram of the matching relationship between the slideway and the roller assembly of the foldable container of the present invention.

[0032] Fig.14 It is a schematic structural diagram of the end door of the foldable container of the present invention.

[0033] Fig.15 for Fig.14 FIG. 1 is a schematic diagram of the extended state of the locking mechanism of the foldable container of the present invention.

[0034] Fig.16 for Fig.14 FIG. 1 is a schematic diagram of a retracted state of a locking mechanism of a foldable container of the present invention.

[0035] Fig.17 It is a structural schematic diagram of the locking mechanism of the foldable container of the present invention.

[0036] Fig.18 for Fig.14 A schematic structural diagram of the roller assembly of the foldable container of the present invention.

[0037] Fig.19 It is a partial enlarged view of the side wall locking mechanism of the foldable container of the present invention.

[0038] Fig. 20 It is a schematic structural diagram of the side wall locking mechanism of the foldable container of the present invention.

[0039] Fig.21 for Fig. 20 A schematic structural diagram of the side wall locking mechanism of the foldable container of the present invention is a longitudinal section along the axis of the pin shaft (the handle is not shown).

[0040] Fig. 22 It is a schematic structural diagram of the chassis hinge of the foldable container of the present invention.

[0041] Fig.23 This is a schematic structural diagram of the horizontal parts of the first hinge part and the second hinge part of the waterproof hinge (underframe hinge) of the foldable container of the present invention, unfolded to form a 90° angle.

[0042] Fig.24 The present invention is a schematic structural diagram of a folded state of horizontal parts of a first hinge part and a second hinge part of a chassis hinge (chassis hinge) of a foldable container according to the present invention.

[0043] Fig.25 for Fig.24 A schematic longitudinal section diagram of a foldable container chassis hinge (chassis hinge) according to the present invention showing a folded state of horizontal portions of a first hinge portion and a second hinge portion.

[0044] Reference numerals:

[0045] 1. Container;

[0046] 10. Box top; 101. Stacking angle; 102. Box top hinge; 103. Box top frame; 104. Box top panel;

[0047] 20, box bottom; 201, box bottom panel; 202, box bottom frame, 2021, support frame, 20211, support part, 2022, slide, 20221, slide support part, 20222, slide limit part, 20223, limit groove, 2023, first limiting portion, 2024, fork hole, 2025, notch; 203, bottom hinge, 2031, first hinge portion, 2032, second hinge portion, 20311, first clamping portion, 203111, clamping groove, 20321, second clamping portion, 203211, clamping protrusion, 20312, first horizontal fixing portion, 20313, first vertical protrusion, 20314, first vertical connecting portion, 20322, second horizontal fixing portion, 20323, second vertical protrusion, 20324, second vertical connecting portion;

[0048] 30, side wall; 301, upper side wall; 302, lower side wall; 303, side wall hinge; 304, side wall locking mechanism, 3041, first fixing block, 3042, second fixing block, 3043, first pin hole, 3044, second pin hole, 3045, pin shaft, 30451, handle mounting hole, 3046, handle; 305, side wall frame, 306, side wall panel; 307, first groove; 308, second groove; 309, second limiting portion;

[0049] 40. End door; 401. Upper end door; 402. Lower end door; 403. End door locking mechanism, 4031. Movable latch, 40311. Latch inserting portion, 40312. Latch inserting portion extension, 40313. Connecting portion, 4032. Latch hole, 4033. Limiting hole, 4034. Handle portion; 404. Roller assembly, 4041. Roller, 4042. Fixed shaft, 4043. Limiting wheel; 405. End door hinge, 406. First protrusion, 407. Second protrusion; 408. End door panel, 409. End door frame. DETAILED DESCRIPTION

[0050] The preferred embodiments of the foldable container 1 of the present invention are described in detail below in conjunction with the accompanying drawings. However, in addition to these detailed descriptions, the present invention may also have other embodiments.

[0051] like Figure 1-25 As shown, the technical solution adopted by the present invention is a foldable container 1, comprising a box top 10, a box bottom 20, two oppositely arranged side walls 30 and two oppositely arranged end doors 40, the box bottom 20 is provided with a receiving portion for accommodating the end doors 40, the box top 10 and the box bottom 20 are respectively hinged with the upper end and the lower end of the side wall 30 to form a loading and unloading space, and the end door 40 can be fully opened and received in the receiving portion to form a loading and unloading port; the box bottom 20 comprises a box bottom panel 201 and a box bottom frame 202, the receiving portion is arranged under the box bottom panel 201, wherein the side wall 30 comprises a left side wall and a right side wall, and the left side wall and the right side wall each comprise an upper and lower hinged The container 1 comprises an upper side wall 301 and a lower side wall 302, and the end door 40 comprises a front end door and a rear end door, and the front end door and the rear end door each comprise an upper end door 401 and a lower end door 402 hinged up and down. When the container 1 is in a folded state, the left side wall and the right side wall are respectively folded inwardly and accommodated between the top 10 and the bottom 20 of the box, and the end door 40 is accommodated in the accommodation portion. The container 1 also comprises a side wall locking mechanism 304 for locking the upper side wall 301 and the lower side wall 302 so that they remain in the same plane without relative movement, and an end door locking mechanism 403 for locking the end door 40 and the side wall 30 when the end door 40 is perpendicular to the bottom 20 and the side wall 30 at the same time.

[0052] The box roof 10 includes a box roof panel 104 and a box roof frame 103 , the side wall 30 includes a side wall panel 306 and a side wall frame 305 , and the end door 40 includes an end door panel 408 and an end door frame 409 .

[0053] In order to reduce the manpower during manual operation, the foldable container 1 is convenient for manual operation, wherein the top panel 104, the side wall panel 306 and the end door panel 408 are all made of glass fiber honeycomb board material, the bottom panel 201 is made of glass fiber honeycomb board material with patterned aluminum plate material; the top frame 103, the side wall frame 305 and the end door frame 409 are all made of aluminum alloy material; the bottom frame 202 is made of steel material. The overall weight of the container 1 is light and has considerable strength, which is more convenient for manual operation and use.

[0054] At the same time, the bottom frame 202 is provided with a standard fork hole 2024 for moving the container 1 before and after loading and unloading. Furthermore, the container 1 is also provided with a positioning structure for stacking after folding, and the positioning structure includes a stacking angle 101 provided on the top 10 and a stacking concave hole provided on the bottom 20, so as to prevent the stacked containers 1 from sliding against each other. At the same time, preferably, the bottom frame 202 is provided with a first limiting portion 2023 protruding from the bottom panel 201 at the four corners or diagonals, and the first limiting portion 2023 is provided on the outside of the bottom panel 201, and the height of the first limiting portion 2023 protruding from the bottom panel 201 is less than or equal to the sum of the thickness of the top 10 and the thickness of the left side wall 30 after folding. It is used to limit the lower side wall 302 from turning outward when the side wall 30 is unfolded, and appropriately limit the folding structure on the bottom panel 201 when the container 1 is in a folded state. The lower side wall 302 may also be provided with a second limiting portion 309 . The second limiting portion 309 is provided outside the accommodation space and is used to limit the upper side wall 301 from turning outward when unfolded.

[0055] Preferably, the height of the end door 40 is greater than the height of the side wall 30 and less than the length of the side wall 30. More specifically, the height of the lower end door 402 is greater than the height of the upper end door 401, and the end door 40 includes an extension section located below the lowest end of the side wall 30, the extension section is located below the upper surface of the box bottom panel 201, the extension section is a part of the end door frame 409 of the lower end door 402, and the extension section is provided with an opening corresponding to the fork hole 2024.

[0056] More preferably, the length, width and height of the side wall 30 match the length, width and height of the load-bearing part of the transport device or the container 1, the height of the end door 40 is less than the length of the side wall 30, the height of the bottom 20 is between 1 / 9 and 1 / 8 of the height of the container 1, and the height of the container 1 when in a folded state is between 1 / 6 and 1 / 7 of the height of the container 1 after it is fully unfolded. Most preferably, the length, width and height of the side wall 30 match the length, width and height of the load-bearing part of the transport device or the container 1, and can be made into a unitized container 1 size that can be operated by manpower, and several of them are placed side by side or individually in the length or width direction of the transport device or the container 1, the height of the end door 40 is less than the length of the side wall 30, the height of the bottom 20 is between 1 / 9 and 1 / 8 of the height of the container 1, and the height of the container 1 when in a folded state is between 1 / 6 and 1 / 7 of the height of the container 1 after it is fully assembled.

[0057] More preferably, the length, width and height of the container 1 are suitable for the width of the trailer, the length, width and height of the outer dimensions of the folding box are 2200 mm, 2550 mm and 2400 mm respectively, the height of the bottom 20 is 280-400 mm, the thickness of the top 10, the side wall 30 and the end door 40 is 45-55 mm, and the folding box is 350-400 mm after folding. Specifically, the length, width and height of the container 1 are suitable for the width of the trailer, the length, width and height of the outer dimensions of the folding box are 2200 mm, 2550 mm and 2400 mm respectively, the height of the bottom 20 is 280-400 mm, the thickness of the top 10, the side wall 30 and the end door 40 is 45-55 mm, the thickness of the top panel 104, the side wall panel 306 and the end door panel 408 is 15-25 mm, and the folding box is 350-400 mm after folding.

[0058] The receiving portion, i.e., the end door receiving structure for receiving the end door 40, is arranged on the bottom 20 of the box, and the receiving portion is arranged below the bottom panel 201 of the box. The receiving portion includes a support frame 2021 fixedly connected to the bottom frame 202 of the box, and slideways 2022 are arranged on the left and right sides of the support frame 2021, and the end door 40 moves inwardly along the slideways 2022 and is received in the receiving portion. The support frame 2021 is provided with a support portion 20211 at the end of the slideway 2022, and the support portion 20211 also helps to support the bottom of the end door 40 more stably and avoid shaking after the end door 40 is locked with the side wall 30, and the distance between the support portion 20211 and the center of the limiting groove 20223 is greater than the distance between the support portion 20211 and the center of the limiting groove 20223, so as to avoid interference when the bottom of the end door 40 rotates.

[0059] Preferably, when it is necessary to describe limiting the end door 40 so that it does not separate from the bottom 20 and flip over, it can be described as fixedly provided with a limit block assembly or a limit block at the bottom of the side wall 30 on the left and right sides of the end door 40 near the end door 40; when it is necessary to describe that in order to facilitate the smooth sliding of the end door 40 in the receiving portion, it can be described as fixedly provided with a slider assembly or a slider, a roller assembly or a spherical roller, or a roller assembly or a cylindrical roller at the bottom of the side wall 30 on the left and right sides of the end door 40 near the end door 40; when it is necessary to describe that in order to facilitate the smooth sliding of the end door 40 in the receiving portion, while limiting the end door 40 from separating from the bottom 20 and enabling the end door 40 to flip over more smoothly without separating from the bottom 20, a roller assembly or a roller, or a roller assembly or a cylindrical roller. Depending on the description scenario, the corresponding description can be selected one by one. Compared with the most preferred cylindrical roller, the similarities are that the installation positions are the same, and the differences are that the functions achieved are the same or partially the same, but the movement form or movement effect to achieve the function is poorer in different scenarios.

[0060] For example, the slider is fixedly connected to the end door 40 through the fixed shaft 4042, the slider is arranged on the slideway 2022, and the end door 40 moves along the slideway 2022 through the slider. The slider facilitates the movement on the slideway, and the slider can rotate in the limit groove 20223, which is also equivalent to a limit block, as long as the limit groove 20223 can limit the slider from leaving the box bottom 20 and there is enough space in the limit groove 20223 for it to drive the end door 40 to flip. Therefore, the limit assembly and the slider assembly can realize the function of the roller assembly according to the present invention, but the effect is poor.

[0061] Furthermore, in order to realize the folding and storage of the end door 40 and the end door 40 does not separate from the box bottom 20 to be flipped and unfolded, the preferred end door flipping and storage mechanism of the present invention is that the end of the slide 2022 is provided with a limiting groove 20223 for limiting the sliding of the slider, the groove bottom of the limiting groove 20223 is lower than the slide 2022, the inner groove wall of the limiting groove 20223 smoothly transitions with the slide 2022, the end door 40 moves along the slide 2022 through the slider, and the slider is limited in the limiting groove 20223 so that the end door 40 can be flipped around the slider between the horizontal position and the vertical position. The end of the slide 2022 is provided with a limiting groove 20223 for limiting the end door 40, the bottom of the limiting groove 20223 is lower than the slide 2022, the end door 40 on the opening side of the limiting groove 20223 is smoothly transitioned to the slide 2022, and the end door 40 on the other side of the limiting groove 20223 is higher than the slide 2022. When the container 1 is unfolded, the end door 40 is limited in the limiting groove 20223 and does not separate from the bottom 20 of the box, and the end door 40 flips around the slider from the horizontal position to the vertical position.

[0062] Preferably, the limiting groove 20223 and the slideway 2022 are arranged on the box bottom frame 202 , and when the end door 40 is perpendicular to the box bottom 20 , the end door frame 409 is located between the side wall frames 305 .

[0063] Of course, a preferred embodiment is that the slides 2022 can also be arranged in parallel in two groups, and two groups of slides 2022 are arranged in parallel in the receiving section, and the front door and the rear door are arranged in parallel in the receiving section. The front door and the rear door can also be in an integral or folded form, and are directly received in the receiving section. However, this will cause the front door and the rear door to be unfolded and folded. The folding form will relatively reduce the operating space, and there needs to be a gap between the two slides 2022 to avoid interference between the front door and the rear door. The height dimension of the foldable container 1 after folding is increased. Moreover, the two slides 2022 are only provided with a limiting groove 20223 at one end, but accordingly, the heights of the two end doors 40, especially the height of the end door frame 409, are different.

[0064] Another and optimal embodiment is that the end door 40 includes a front door and a rear door arranged at both ends of the box bottom 20, and the front door and the rear door both include an upper door 401 and a lower door 402 hinged to each other, and a set of slideways 2022 is arranged in the receiving portion, and the front door and the rear door are received in the receiving portion after the upper door 401 and the lower door 402 are folded and moved inwardly, and the upper door 401 and the lower door 402 are folded and move along the slideway 2022, so that the front door and the rear door are respectively received at the front and rear ends of the receiving portion. Compared with the other two embodiments, the optimal embodiment has a smaller operating space for the front door and the rear door, and the height of the foldable container 1 after folding is also lower, and the folding effect is better.

[0065] The slider assembly or slider here needs to simultaneously slide on the slideway 2022 and limit in the limiting groove 20223 to enable the end door 40 to rotate relative to the box bottom 20. When the end door 40 needs to be unfolded, the end door 40 is pulled out from the receiving portion, so that the limiting block assembly is set in the limiting groove 20223, and the end door 40 follows the rotation of the limiting block around the fixed axis 4042 and flips relative to the box bottom 20 to be set perpendicular to the box bottom 20. When the end door 40 needs to be accommodated, the limiting block assembly is separated from the limiting groove 20223.

[0066] In one preferred embodiment, the stop block is a spherical roller, and the center of the spherical roller rotates freely. In another preferred embodiment, the stop block is a spherical roller, which is arranged on the fixed shaft, and the spherical roller rotates freely around a point on the fixed shaft.

[0067] One and also the most preferred embodiment is that the limit block is a cylindrical roller 4041, which is arranged on the fixed shaft 4042, and the roller 4041 rotates around the fixed shaft 4042. The cylindrical roller 4041 includes a first wall and a second wall that are symmetrically arranged, and the middle parts of the first wall and the second wall are connected through a roller 4041 support wall, and the roller 4041 support wall surrounds an axial hole for placing the fixed shaft 4042, and the outer surface of the roller 4041 support wall is arranged on the slideway support part 20221, and the slideway limit part 20222 and the slideway support part 20221 are arranged opposite to each other, and are used to limit the roller 4041 to prevent the roller 4041 from being separated from the slideway 2022, and a sufficient first gap is left with the roller 4041 support wall to avoid motion interference. The outer side of the roller 4041 is provided with a limiting wheel 4043 coaxially arranged on the fixed shaft 4042 with the roller 4041, and a second gap is provided between the slideway support portion 20221 and the slideway limiting portion 20222 and a side wall of the slideway 2022 close to the outer side of the box bottom, and the gap is used to accommodate the limiting wheel 4043. More specifically, the slideway 2022 of the limiting groove 20223 is butted, and the limiting groove 20223 also includes a limiting wheel 4043 accommodating portion for supporting and accommodating the limiting wheel 4043. A limiting structure for limiting the rotation of the roller 4041 is provided in the second gap near the limiting groove 20223, and the limiting structure can be a part of the support frame 2021. After the limiting wheel 4043 of the roller 4041 falls into the limiting groove 20223, the roller 4041 does not move, and the end door 40 follows the fixed shaft 4042 to flip around the axis of the fixed shaft 4042. Corresponding to the most preferred embodiment, the limiting groove 20223 is a C-shaped groove, the groove bottom of the C-shaped groove is lower than the slide 2022, and the inner groove wall of the C-shaped groove smoothly transitions with the slide 2022. When the container 1 needs to be folded, the limiting block is separated from the limiting groove 20223 and moves along the slide 2022 to be accommodated in the accommodating portion. Of course, if the limiting blocks in other embodiments can be implemented in a manner that can be learned according to the present invention, it can be determined to fall within the protection scope of the present invention. The slide 2022 is C-shaped in cross section along the length direction perpendicular to the slide 2022, and the limiting groove 20223 is C-shaped in cross section along the length direction parallel to the slide 2022. The side of the C-shaped groove close to the end door 40 smoothly transitions to the slideway 2022 , and the limiting structure is arranged between the limiting groove 20223 and the second gap of the slideway 2022 .

[0068] Preferably, the bottom of the limiting groove 20223 is spaced a distance from the lowest position of the box bottom frame 202 , so as to press the end door 40 downward to disengage the end door 40 from the limiting groove 20223 .

[0069] A handle may be provided on the outer side of the upper door 401, which is more helpful for leveraging and manpower support during manual operation, making the operation more convenient.

[0070] The locking mechanism preferably includes a side wall locking mechanism 304 for locking the upper side wall 301 and the lower side wall 302 so that they remain in the same plane without relative movement, and an end door locking mechanism 403 for locking the end door 40 and the side wall 30 when the end door 40 is perpendicular to the bottom 20 and the side wall 30 at the same time.

[0071] The container 1 further comprises an end door locking mechanism 403 for locking the end door 40 and the side wall 30. At least part of the end door locking mechanism 403 protrudes from the end door frame 409. A notch 2025 for avoiding the end door locking mechanism 403 is provided on the bottom frame 202. The protruding part, such as the movable latch 4031 of the end door locking mechanism 403 in the extended state, is shown in FIG. Fig.15 As shown, (it may not be protruding, in the retracted state as shown Fig.16 As shown) and a first protrusion 406 of the first end surface auxiliary locking mechanism and a second protrusion 407 of the second end surface auxiliary locking mechanism.

[0072] The side wall locking mechanism 304 includes a pin shaft 3045 and a first fixing block 3041 and a second fixing block 3042 respectively arranged on the upper side wall 301 and the lower side wall 302. The first fixing block 3041 and the second fixing block 3042 are arranged alternately. The lower side wall 302 is also provided with an accommodating space 3043 for accommodating the first fixing block 3041. The first fixing block 3041 and the second fixing block 3042 are correspondingly provided with a first pin hole 3043 and a second pin hole 3044. The pin shaft 3045 can be movably arranged in the second pin hole 3044. The pin shaft 3045 is fixedly connected to the handle 3046 arranged on the outside of the second fixed block 3042. When the upper side wall 301 and the lower side wall 302 are relatively rotated to a position close to the unfolded position through the hinge, the pin shaft 3045 is withdrawn from the accommodating space 3043 through the handle 3046, and the unfolding is continued so that the first fixed block 3041 is accommodated in the accommodating space 3043 so that the upper side wall 301 and the lower side wall 302 are unfolded into place, and the pin shaft 3045 is released so that the pin shaft 3045 extends into the first pin hole 3043 so that the upper side wall 301 and the lower side wall 302 are locked.

[0073] The side wall locking mechanism 304 includes a reset spring arranged in the first pin hole 3043 for resetting the pin shaft 3045. The pin shaft 3045 includes a first section and a second section. The diameter of the second section is larger than that of the first section. The reset spring is arranged on the first section. The sizes of the first pin hole 3043 and the second pin hole 3044 are adapted to the pin shaft 3045.

[0074] The end door locking mechanism 403 preferably includes a movable latch 4031 disposed on the end door 40, a latch hole 4032 disposed on the side wall 30, and a limiting hole 4033 disposed on the end door 40 for limiting the movable latch 4031. The movable latch 4031 includes a latch inserting portion 40311 and a handle portion 4034. The latch inserting portion 40311 can rotate around the limiting hole 4033 perpendicular to the end door 40 under the drive of the handle portion 4034. 0 rotation, the latch part 40311 is L-shaped, the latch hole 4032 is correspondingly provided with a horizontal hole and a vertical hole, the width of the horizontal hole and the depth of the vertical hole are adapted to the width of the movable latch 4031, the latch part 40311 is inserted into the horizontal hole of the latch hole 4032, and rotates after being in place so that the vertical section of the latch part 40311 enters the vertical hole and is in place, and the movable latch 4031 is restricted in the latch hole 4032 and locked. Preferably, the end door 40 includes an end door panel 408 and an end door frame 409, and the side wall 30 includes a side wall panel 306 and a side wall frame 305, the limiting hole 4033 is provided on the end door panel 408 through a mounting base plate, the latch hole 4032 is provided on the side wall frame 305, and the movable latch 4031 is penetrated through the end door frame 409 and rotates around the limiting hole 4033 perpendicular to the end door 40. Preferably, the upper part of the mounting base plate and the opposite side of the operating side are arranged below the end door frame 409. The mounting base plate is provided with a locking protrusion for positioning the movable latch 4031 when the movable latch 4031 is in place.

[0075] Preferably, the locking mechanism includes a first end door auxiliary locking mechanism for positioning and auxiliary locking of the end door 40 and the side wall 30 before the end door locking mechanism 403 is locked, the first end door auxiliary locking mechanism includes a first protrusion 406 protruding horizontally outward on the left and right sides of the end door frame 409, a first groove 307 horizontally arranged on the front surface of the side wall frame 305, and a vertical groove arranged on the side surface of the side wall frame 305 and connected to the first groove 307, the height difference between the first protrusion 406 and the top end of the end door frame 409 is greater than the height difference between the first groove 307 and the top end of the side wall frame 305, and the height difference between the first protrusion 406 and the top end of the end door frame 409 is equal to or less than the height difference between the top end of the vertical groove and the top end of the side wall frame 305.

[0076] Preferably, the locking mechanism includes a second end door 40 auxiliary locking mechanism for positioning and auxiliary locking of the end door 40 and the side wall 30 before the end door locking mechanism 403 is locked, including a plurality of second protrusions 407 protruding horizontally outwardly on the left and right sides of the end door frame 409, and a plurality of second grooves horizontally arranged on the front surface of the side wall frame 305, and the height difference between the second protrusion 407 and the top of the end door frame 409 is equal to the height difference between the second groove and the top of the side wall 30 frame.

[0077] The most preferred side wall locking mechanism 304 includes a first fixing block 3041 and a second fixing block 3042 respectively arranged on the upper side wall 301 and the lower side wall 302, wherein the first fixing block 3041 and the second fixing block 3042 are arranged alternately, and the lower side wall 302 is further provided with an accommodating space 3043 for accommodating the first fixing block 3041, and the first fixing block 3041 and the second fixing block 3042 are correspondingly provided with a first pin hole 3043 and a second pin hole 3044, and the pin shaft 3045 is movably arranged in the second pin hole 3044, and the pin shaft 3045 is movably arranged in the second pin hole 3044. 45 is fixedly connected with the handle 3046 arranged on the outer side of the second fixing block 3042 through the handle fixing hole 30451. When the upper side wall 301 and the lower side wall 302 are relatively rotated to a near-expanded position through the hinge, the handle 3046 is used to make the pin shaft 3045 withdraw from the first pin hole 3043, and the first fixing block 3041 is further expanded so that the upper side wall 301 and the lower side wall 302 are accommodated in the accommodation space 3043 so that the upper side wall 301 and the lower side wall 302 are fully expanded, and the pin shaft 3045 is released so that the pin shaft 3045 extends into the first pin hole 3043 so that the upper side wall 301 and the lower side wall 302 are locked. Of course, the end door locking mechanism 403 can also be other forms of locking mechanisms for locking. It is preferred to use the end door locking mechanism 403 of the present invention. The optimal end door locking mechanism 403 of the present invention is cleverly designed, can be operated by a worker with one hand, and is convenient and reliable to lock. The end door locking mechanism 403 can be set on both the upper end door 401 and the lower end door 402. Before the end door locking mechanism 403 is locked, the positioning and pre-locking of the end door 40 and the side wall 30 can be realized by an auxiliary locking mechanism, so as to reduce the human hand support force in the locking process of the end door 40 and improve the comfort of operation. The auxiliary locking mechanism of the end door 40 can be the auxiliary locking mechanism of the first end door 40 or the auxiliary locking mechanism of the second end door 40, and of course, it can also include one auxiliary locking mechanism of the first end door 40 and several auxiliary locking mechanisms of the second end door 40 at the same time. The auxiliary locking mechanism of the first end door 40 is set above the auxiliary locking mechanism of the first end door 40, and the auxiliary locking mechanism of the first end door 40 is set at the top position of the side wall 30 close to the upper end door 401. When the auxiliary locking mechanism includes the auxiliary locking mechanism of the first end door 40, the end door locking mechanism 403 can also be set only on the lower end door 402.

[0078] In the optimal embodiment of the present invention, the hinge between the box top 10 and the side wall 30 (upper side wall 301) is the box top hinge 102, the hinge between the upper side wall 301 and the lower side wall 302 is the side wall hinge 303, the hinge between the upper end door 401 and the lower end door 402 is the end door hinge 405, and the hinge between the box bottom 20 and the side wall 30 (lower side wall 302) is the box bottom hinge 203.

[0079] The hinge is preferably a waterproof hinge to prevent rain from getting wet or pouring into the folding box. The top hinge 102 and the bottom hinge 203 can be folded 90 degrees, and the side wall hinge 303 and the end hinge can be folded 180 degrees. The bottom hinge 203 is used as an example to illustrate as follows:

[0080] The waterproof hinge includes a first hinge part 2031 and a second hinge part 2032 engaged with the first hinge part 2031, the first hinge part 2031 is arranged on the upper part of the second hinge part 2032, the center line of the second hinge part 2032 is located on the inner side of the first hinge part 2031, the first hinge part 2031 includes a first engaging part 20311 and a first slot part 20312, the second hinge part 2032 includes a second engaging part 20321 and a second slot part 20322, the first engaging part 20311 is accommodated in the second slot part 20322, the second engaging part 20321 is accommodated in the first slot part 20312, and the first engaging part 20311 and the second engaging part 20321 are relatively provided with engaging grooves 203111 and engaging protrusions 203211. Preferably, the outer surface of the first hinge part 2031 and / or the second hinge part 2032 is provided with a water-guiding arc surface. Furthermore, in the waterproof hinge of the present invention, the first hinge part 2031 and / or the second hinge part 2032 (i.e., the first horizontal fixing part 20312 and the second horizontal fixing part 20322) are provided with a plurality of waterproof grooves for preventing water from entering the mounting surface of the container 1. The waterproof hinge is preferably used for the hinge connection between the top 10, the bottom 20 and the side wall 30 of the box. In the waterproof hinge, since the first hinge part 2031 is arranged on the upper part of the second hinge part 2032, and the center line of the second hinge part 2032 is located on the inner side of the first hinge part 2031, it can well prevent rainwater from entering the hinge part, thereby increasing the reliability and service life of the waterproof hinge. Furthermore, the first hinge part 2031 and / or the second hinge part 2032, especially the outer side of the first hinge part 2031, is provided with a water-guiding arc surface for guiding water, which can further effectively guide water; the first hinge part 2031 and / or the second hinge part 2032, especially the second fixed horizontal part 20322 on the second hinge part 2032 and the corresponding fixed position of the container are correspondingly provided with waterproof grooves to further prevent rainwater from seeping in.

[0081] Preferably, the first hinge part 2031 also includes a first horizontal fixing part 20312 for fixing, and the second hinge part 2032 includes a second horizontal fixing part 20322 for fixing, the first horizontal fixing part 20312 is connected to the first clamping part 20311 via a first vertical connecting part 20314, and the second horizontal fixing part 20322 is connected to the second clamping part 20321 via a second vertical connecting part 20324.

[0082] Preferably, the first slot portion 20312 is arranged on the first vertical connection portion 20314, one end of the first locking portion 20311 is connected to the first vertical connection portion 20314, and the other end is arranged opposite to the first slot portion 20312; the second slot portion 20322 is arranged on the outer side of the second vertical connection portion 20324, one end of the second locking portion 20321 is connected to the second vertical connection portion 20324, and the other end is arranged opposite to the second slot portion 20322.

[0083] Preferably, the outer surface of the second engaging portion 20321 is adapted to the inner surface of the first engaging slot portion 20312, a gap is set between the outer surface of the first engaging portion 20311 and the outer surface of the second engaging slot 20322, the engaging protrusion 203211 and the engaging groove 203111 are the central axis of flipping, and the first engaging slot portion 20312 and the second engaging slot portion 20322 are both provided with a limiting portion for limiting the flipping angle of the first engaging portion 20311 and the second engaging portion 20321.

[0084] Preferably, the turning radius of the second engaging portion 20321 is greater than the turning radius of the first engaging portion 20311 .

[0085] Preferably, the first hinge portion 2031 also includes a first vertical protrusion 20313 arranged on the first horizontal portion, and the second hinge portion 2032 includes a second vertical protrusion 20323 arranged on the second horizontal fixing portion 20322, and the first vertical protrusion 20313 and the second vertical protrusion 20323 are respectively arranged on the inner sides of the first vertical connection portion 20314 and the second vertical connection portion 20324.

[0086] Preferably, the second hinge part 2032 is sleeved in the first hinge part 2031 through one end of the first hinge part 2031, and the locking protrusion 203211, the first locking part 20311 and the second locking part 20321 do not separate from the locking groove 203111, the second groove part 20322 and the first groove 307 when the first hinge part 2031 and the second hinge part 2032 are flipped relative to each other.

[0087] Beneficial effects: The foldable container of the present invention can be folded and unfolded by two people without disassembly, and all parts do not separate from the container during folding and unfolding. It can be folded and unfolded quickly, and the folding and unfolding locks are reliable and stable. The folding effect is greatly improved, the empty load rate of the vehicle is greatly reduced, the efficiency of loading and unloading operations and transportation is improved, and the cost is greatly reduced.

[0088] The end door receiving structure and the end door flipping receiving mechanism of the present invention can receive the end door during loading and unloading of goods through the receiving part. During loading and unloading, only the loading and unloading space can be unfolded to fully open the end door to form a loading and unloading port, thereby reducing operation obstacles, making the loading and unloading operations flexible in all directions, and improving the loading and unloading efficiency. Through the limit groove and the limit assembly (roller, etc.), the end door does not separate from the container to flip during the folding process, and the operation is easy and convenient. Furthermore, the end door and the side wall are both foldable, further reducing the demand for the operation site and making the operation more flexible.

[0089] The locking mechanism of the present invention is cleverly designed, so that the foldable container can be quickly locked and unlocked for folding or installation, and the operation is convenient, and the locking is reliable and stable. In particular, the first end door auxiliary locking mechanism and the second end door auxiliary locking mechanism can not only greatly reduce the cost of the locking mechanism, but also greatly reduce the manpower in the end door locking process. In addition, the locking operation can be performed with one hand during the locking process, and the operation is simple and convenient. In addition, the first end door auxiliary locking mechanism can quickly position the end door during the unfolding process, reducing manpower, and the second end door locking mechanism can further fix the end door, and the operation of the end door locking mechanism can be completed with one hand without the help of people, which can save time and labor, and complete folding and unfolding conveniently and quickly.

[0090] Moreover, the foldable container of the present invention has a simple and ingenious structural design, which is convenient for manual operation. The top cover panel, the side wall panel and the end wall panel are all made of glass fiber honeycomb panels, and the bottom support panel is made of aluminum plate with pattern on glass fiber honeycomb panels; the top wall frame, the side wall frame and the end wall frame are all made of aluminum alloy; and the bottom support frame is made of steel. The overall weight of the container is light and has considerable strength, which is more convenient for manual operation and use. It can be easily folded and unfolded by two people without the help of any machinery. At the same time, a standard forklift fork hole is provided for moving the container before and after loading and unloading. Furthermore, the container is also provided with a positioning structure for stacking after folding, and the positioning structure includes a stacking protrusion provided on the top cover and a stacking concave hole provided on the bottom support to prevent the stacked containers from sliding against each other. The size is designed according to the existing trailer or truck compartment, and the volume after folding and storage reaches 1 / 6 or even less than that before folding.

[0091] The folding and unfolding process of the container 1 is described in detail below with reference to the best embodiment.

[0092] When the foldable container 1 is folded from the unfolded state, the end door locking mechanism 403, the first end door auxiliary locking mechanism, the second end door auxiliary locking mechanism and the side wall locking mechanism 304 are released from the locked state to the unlocked state: first, the end door locking mechanism 403, the second end door auxiliary locking mechanism and the first end door auxiliary locking mechanism for locking the end door 40 and the side wall 30 are released in sequence, so that the end door 40 is separated from the side wall 30, and the end door 40 is rotated around the cylindrical roller 4041 arranged at the lower end (that is, around the axis of the fixed shaft 4042). When the lower end door 402 is horizontal, the upper end door 401 is placed on the lower end door 402, and the folded end door 40 is pushed forward along the slide 2022 and accommodated in the accommodation part. The front and rear end doors 40 are respectively released, folded, slid and accommodated in the front and rear ends of the accommodation part; then the side wall locking mechanism 304 of the side wall 30 on one side is released respectively and in turn, so that the side wall 30 is folded inward and accommodated between the box top 10 and the box bottom 20, and the left and right side walls 30 are respectively moved, and the box top 10 falls on the left and right side walls 30, and the container 1 is folded.

[0093] The method for unfolding the foldable container 1 from the folded state is as follows: two people stand at the front and rear ends of the container 1, and lift the top 10 on the right side so that the top 10 and the upper end of the side wall 30 are supported at an angle. When the upper side wall 301 and the lower side wall 302 on the right side are about to be fully unfolded, the two people simultaneously operate the side wall locking mechanism 304 with one hand, and pull the pin 3045 outwards through the handle 3046 to cancel the interference of the pin 3045 on the rotation of the upper side wall 301. When the side wall 30 on the right side is fully unfolded, the handle 3046 is released to release the pin 3045, so as to realize the upper side wall 301 and the lower side wall on the right side. The top 10 is then lifted on the left side to make the side wall 30 vertical and the top 10 lifted to a horizontal position. When the upper side wall 301 and the lower side wall 302 on the left are about to be fully unfolded, two people simultaneously operate the side wall locking mechanism 304 with one hand, and pull the pin 3045 outwards through the handle 3046 to cancel the interference of the pin 3045 on the rotation of the upper side wall 301. When the side wall 30 on the left is fully unfolded, the handle 3046 is released to release the pin 3045, so as to realize the locking of the upper side wall 301 and the lower side wall 302 on the left. The locking of the wall 302 completes the unfolding of the box top 10 and the left and right side walls 30; further, the front door 40 in a folded state housed in the front end is pulled out, and the front door 40 is lifted up at the same time, and the upper door 401 and the lower door 402 are made to be at a certain angle through the handle provided on the upper door 401, and when the upper door 401 is lifted up to the point where the first protrusion 406 on the upper door 401 corresponds to the first groove 307 on the side wall 30, the first end door 40 auxiliary locking mechanism is used to position the end door 40 and the side wall 30, wherein the first protrusion 406 is placed in the first groove 307 to position the front door 40 and the side wall 30, and then In a first step, the angle of the upper end door 401 is adjusted by the hinge so that the first protrusion 406 moves into place in the first groove 307, and the front end door 40 is fully unfolded; then, the end door 40 and the side wall 30 are pre-installed by the second end door 40 auxiliary locking mechanism, wherein the second protrusion 407 corresponds to the second groove 308, and the second protrusion 407 is pressed into the second groove 308 to pre-install the front end door 40 and the side wall 30; finally, the front end door 40 and the side wall 30 are finally locked by the end door locking mechanism 403; finally, the rear end door 40 and the side wall 30 are locked in the same way as the front end door 40 is unfolded and locked.

[0094] Preferably, a locking mechanism is also included, which includes a side wall locking mechanism 304 for locking the upper side wall 301 and the lower side wall 302 so that they remain in the same plane without relative movement, and an end door locking mechanism 403 for locking the end door 40 and the side wall 30 when the end door 40 is perpendicular to the bottom 20 and the side wall 30 at the same time.

[0095] Among them, the end door receiving structure, the locking mechanism and the waterproof hinge structure can be arranged on a general container or on a foldable container in other folding forms.

[0096] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the present invention to the described embodiments. In addition, it can be understood by those skilled in the art that the present invention is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims

1. An end door flipping and accommodating mechanism for a container, characterized in that: The container comprises a top, a bottom, side walls and an end door. The bottom is provided with a receiving portion for accommodating the end door. The top and the bottom are respectively hinged with the upper end and the lower end of the side wall to form a loading and unloading space. The end door can be fully opened and received in the receiving portion to form a loading and unloading port. The end door comprises an end door panel and an end door frame. The bottom comprises a bottom panel and a bottom frame. The end door flipping and receiving mechanism comprises a limit block assembly arranged on the end door and a limit groove arranged at the end of the receiving portion for limiting the limit block assembly; the limit block assembly comprises a fixed shaft and a limit block, the fixed shaft is fixed at a position close to the bottom end of the side wall of the end door; the limit block is a cylindrical roller arranged on the fixed shaft, and the roller can rotate around the fixed shaft; When the end door needs to be unfolded, the end door is pulled out from the receiving portion, so that the limit block assembly is set in the limit groove, and the end door follows the limit block to rotate around the fixed axis and flip relative to the bottom of the box to be set perpendicular to the bottom of the box; when the end door needs to be received, the limit block assembly is separated from the limit groove, and the end door follows the limit block to move inward and be received in the receiving portion; It also includes a support part that is parallel to the bottom panel of the box and fixedly connected to the bottom bracket of the box, slides are arranged on both sides of the support part, and the limit grooves are arranged at the ends of the slides; the limit grooves are C-shaped grooves, the bottom of the C-shaped grooves is lower than the slides, and the inner groove walls of the C-shaped grooves smoothly transition to the slides; when the container needs to be folded, the limit blocks are separated from the limit grooves and move along the slides to be accommodated in the accommodation part; the limit grooves and the slides are arranged on the bottom frame of the box, and when the end door is perpendicular to the bottom of the box, the end door frame is located between the side wall frames.

2. A foldable container, characterized in that: The container comprises a top, a bottom, two oppositely arranged side walls and two oppositely arranged end doors, the two end doors are respectively a front door and a rear door, a receiving portion for accommodating the end doors is provided on the bottom, the top and the bottom are respectively hinged with the upper end and the lower end of the side walls to form a loading and unloading space, and the end doors can be fully opened and received in the receiving portion to form a loading and unloading port; the container comprises the end door flipping and receiving mechanism as claimed in claim 1, the side walls comprise an upper side wall and a lower side wall hinged to each other, and when the container is in a folded shape, the side walls are folded inwardly and received between the top and the bottom.

3. The foldable container according to claim 2, characterized in that: The slideways are arranged in two groups in parallel vertically, and the front door and the rear door are arranged vertically and alternately in the receiving portion.

4. The foldable container according to claim 2, characterized in that: The support portion and the slideway are provided in a group, and the upper end door and the lower end door of the front end door and the rear end door are respectively arranged at the two ends of the receiving portion after being folded.

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