阅读说明：本技术 用于海洋船舶的货箱 (Cargo box for marine vessel ) 是由 王明亮 韩文来 焦汝萍 韩长宏 孙恒杰 马新艳 于 2021-11-15 设计创作，主要内容包括：本申请实施例公开了一种用于海洋船舶的货箱,包括：箱体框架；箱体板,固定连接于所述箱体框架；铰链,所述铰链包括固定件和转动件,所述固定件设置于所述箱体框架；所述转动件上设置有轴孔,所固定件包括转轴,所述转轴插接于所述轴孔以使得所述固定件与所述转动件铰接；所述转轴包括上轴和下轴,所述上轴和所述下轴均为圆台形；箱体门,与所述转动件连接,所述箱体门和所述箱体板围合形成容置空间。本申请实施例中箱体门上不同尺寸的转动件可以与箱体框架上设置的固定件铰接,从而实现方便快速的更换货箱的箱体门,提高工作效率。(The embodiment of the application discloses a packing box for marine vessel includes: a box frame; the box body plate is fixedly connected to the box body frame; the hinge comprises a fixed part and a rotating part, and the fixed part is arranged on the box body frame; the rotating part is provided with a shaft hole, the fixed part comprises a rotating shaft, and the rotating shaft is inserted in the shaft hole so that the fixed part is hinged with the rotating part; the rotating shaft comprises an upper shaft and a lower shaft, and the upper shaft and the lower shaft are both in a circular truncated cone shape; the box body door is connected with the rotating piece, and the box body door and the box body plate are enclosed to form an accommodating space. In the embodiment of this application, the rotation piece of equidimension on the box door can be articulated with the mounting that sets up on the box frame to realize the convenient quick box door of changing the packing box, improve work efficiency.)

1. A cargo box for a marine vessel, comprising:

a box frame;

the box body plate is fixedly connected to the box body frame;

the hinge comprises a fixed part and a rotating part, and the fixed part is arranged on the box body frame; the rotating part is provided with a shaft hole, the fixed part comprises a rotating shaft, and the rotating shaft is inserted in the shaft hole so that the fixed part is hinged with the rotating part; the rotating shaft comprises an upper shaft and a lower shaft, the upper shaft and the lower shaft are both in a circular truncated cone shape, the upper shaft comprises a first top wall, a first side wall and a first bottom wall, the first top wall and the first bottom wall are arranged in a back-to-back mode, the first side wall is connected with the first top wall and the first bottom wall, the first top wall is larger than the first bottom wall, the lower shaft comprises a second top wall, a second side wall and a second bottom wall, the second top wall and the second bottom wall are arranged in a back-to-back mode, the second side wall is connected with the second top wall and the second bottom wall, and the second top wall is smaller than the second bottom wall;

the box body door is connected with the rotating piece, and the box body door and the box body plate are enclosed to form an accommodating space.

2. The cargo box for a marine vessel as defined by claim 1, wherein the pivot further comprises a plurality of rollers embedded in a first sidewall of the upper shaft and a second sidewall of the lower shaft, the plurality of rollers being rotatable relative to the first sidewall and the second sidewall.

3. The cargo box for a marine vessel as defined by claim 1, wherein the pivot shaft further comprises an extension shaft, a first bottom wall of the upper shaft being in threaded engagement with one end of the extension shaft and the other end of the extension shaft being in threaded engagement with a second top wall of the lower shaft.

4. A container for a marine vessel as claimed in claim 1,

the first top wall, the first side wall and the first bottom wall enclose to form a first chamber; the first side wall comprises a plurality of first arc-shaped plates annularly arranged around the first top wall, and the first arc-shaped plates are hinged with the first top wall; the upper shaft further comprises a first screw and a first cone, the first screw penetrates through the first top wall and is connected with the first bottom wall, the first screw is in threaded fit with the first top wall, the first cone is arranged on the first screw and is positioned in the first cavity, and the conical surface of the first cone can abut against the first arc-shaped plates to enable the first arc-shaped plates to rotate around the first top wall;

the second top wall, the second side wall and the second bottom wall enclose to form a second chamber; the second side wall comprises a plurality of second arc-shaped plates which are annularly arranged around the second bottom wall, and the second arc-shaped plates are hinged with the second bottom wall; the lower shaft further comprises a second screw and a second cone, the second screw penetrates through the second bottom wall and is connected with the second top wall, the second screw is in threaded fit with the second bottom wall, the second cone is arranged on the second screw and is located in the second cavity, and the conical surface of the second cone can abut against the second arc-shaped plates to enable the second arc-shaped plates to rotate around the second bottom wall.

5. A container for a marine vessel as claimed in claim 1 wherein the fixing further comprises a fixing plate fixedly provided to the container frame, the upper and lower shafts being slidably provided to the fixing plate.

6. A container for a marine vessel as claimed in claim 1 wherein the swivel comprises:

the shaft hole is formed in the first connecting plate;

the bearing plate is formed by extending from the first connecting plate, and an arc-shaped part is arranged between the bearing plate and the first connecting plate;

the second connecting plate extends from the bearing plate to form, a bent part is arranged between the second connecting plate and the bearing plate, and the bending direction of the arc-shaped part is the same as that of the bent part.

7. A container for a marine vessel as claimed in claim 1 wherein the ends of the axle bore are shaped to fit the upper and lower axles respectively.

8. A cargo box for a marine vessel as claimed in claim 1, further comprising a lifting member, the lifting member being provided at the box door, an output end of the lifting member being provided towards the box frame at the bottom of the box door.

9. A cargo box for a marine vessel as claimed in claim 1, further comprising guide rails, the guide rails being disposed on the bottom of the box frame, the top of the box frame being provided with dovetail slots, the guide rails of one of the boxes being slidably disposed in the dovetail slots of the other of the boxes.

10. A container for a marine vessel as claimed in claim 1 further comprising a wedge, the inclined face of the wedge engaging the outer side of the box door, the relatively thicker end of the wedge being disposed towards the hinge.

Technical Field

The application relates to the technical field of containers, in particular to a container for a marine vessel.

Background

Among the related art, the packing box is used for installing the goods of different grade type, according to the goods kind difference can have different requirements to the box door, so need satisfy the requirement through changing different box doors. The sizes of the hinges used by different box doors are often different, if the hinges are synchronously replaced when the box doors are replaced at every time, time and labor are wasted, and the hinges can be disassembled and assembled for many times to cause certain damage to the box doors.

Disclosure of Invention

The embodiment of the application provides a packing box for a marine vessel, can solve the technical problem in the above-mentioned correlation technique.

The embodiment of the application provides a packing box for marine vessel, includes: a box frame; the box body plate is fixedly connected to the box body frame; the hinge comprises a fixed part and a rotating part, and the fixed part is arranged on the box body frame; the rotating part is provided with a shaft hole, the fixed part comprises a rotating shaft, and the rotating shaft is inserted in the shaft hole so that the fixed part is hinged with the rotating part; the rotating shaft comprises an upper shaft and a lower shaft, the upper shaft and the lower shaft are both in a circular truncated cone shape, the upper shaft comprises a first top wall, a first side wall and a first bottom wall, the first top wall and the first bottom wall are arranged in a back-to-back mode, the first side wall is connected with the first top wall and the first bottom wall, the first top wall is larger than the first bottom wall, the lower shaft comprises a second top wall, a second side wall and a second bottom wall, the second top wall and the second bottom wall are arranged in a back-to-back mode, the second side wall is connected with the second top wall and the second bottom wall, and the second top wall is smaller than the second bottom wall; the box body door is connected with the rotating piece, and the box body door and the box body plate are enclosed to form an accommodating space.

In some exemplary embodiments, the rotating shaft further includes a plurality of rolling members, the plurality of rolling members are embedded in the first sidewall of the upper shaft and the second sidewall of the lower shaft, and the plurality of rolling members are rotatable with respect to the first sidewall and the second sidewall.

In some exemplary embodiments, the rotating shaft further includes an extension shaft, and the first bottom wall of the upper shaft is in threaded connection with one end of the extension shaft, and the other end of the extension shaft is in threaded connection with the second top wall of the lower shaft.

In some exemplary embodiments, the first top wall, the first side wall, and the first bottom wall enclose a first chamber; the first side wall comprises a plurality of first arc-shaped plates annularly arranged around the first top wall, and the first arc-shaped plates are hinged with the first top wall; the upper shaft further comprises a first screw and a first cone, the first screw penetrates through the first top wall and is connected with the first bottom wall, the first screw is in threaded fit with the first top wall, the first cone is arranged on the first screw and is positioned in the first cavity, and the conical surface of the first cone can abut against the first arc-shaped plates to enable the first arc-shaped plates to rotate around the first top wall; the second top wall, the second side wall and the second bottom wall enclose to form a second chamber; the second side wall comprises a plurality of second arc-shaped plates which are annularly arranged around the second bottom wall, and the second arc-shaped plates are hinged with the second bottom wall; the lower shaft further comprises a second screw and a second cone, the second screw penetrates through the second bottom wall and is connected with the second top wall, the second screw is in threaded fit with the second bottom wall, the second cone is arranged on the second screw and is located in the second cavity, and the conical surface of the second cone can abut against the second arc-shaped plates to enable the second arc-shaped plates to rotate around the second bottom wall.

In some exemplary embodiments, the fixing member includes a fixing plate fixedly disposed on the box frame, and the upper shaft and the lower shaft are slidably disposed on the fixing plate.

In some exemplary embodiments, the rotating member includes: the rotating member includes: the shaft hole is formed in the first connecting plate; the bearing plate is formed by extending from the first connecting plate, and an arc-shaped part is arranged between the bearing plate and the first connecting plate; the second connecting plate extends from the bearing plate to form, a bent part is arranged between the second connecting plate and the bearing plate, and the bending direction of the arc-shaped part is the same as that of the bent part.

In some exemplary embodiments, both ends of the shaft hole are shaped to fit the upper shaft and the lower shaft, respectively.

In some exemplary embodiments, the door assembly further comprises a lifting member, the lifting member is disposed at the box door, and an output end of the lifting member is disposed toward a box frame at the bottom of the box door.

In some exemplary embodiments, the rack further comprises a guide rail, the guide rail is arranged at the bottom of the box body frame, the dovetail groove is arranged at the top of the box body frame, and the guide rail of one box body is slidably arranged in the dovetail groove of the other box body.

In some exemplary embodiments, the hinge further comprises a wedge block, an inclined surface of the wedge block is attached to an outer side surface of the box door, and a relatively thick end of the wedge block is arranged towards the hinge.

Has the advantages that: the upper shaft and the lower shaft of the fixing part of the embodiment of the application are in the shape of a circular truncated cone, the upper shaft and the lower shaft can be matched with shaft holes of different diameters in a plugging mode, even if the shaft hole diameters of the rotating parts arranged on the box doors of different types are different, the rotating parts can be directly plugged and rotated with the rotating shafts of the fixing part arranged on the box frame, and therefore the box door capable of being conveniently and quickly replaced is achieved, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a case according to an embodiment of the present disclosure;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is an exploded view of a hinge according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a rotating shaft according to an embodiment of the present application;

FIG. 5 is an exploded view of a hinge according to another embodiment of the present application;

FIG. 6 is a schematic structural diagram of a rotating shaft according to another embodiment of the present application;

FIG. 7 is a schematic structural diagram of a rotating shaft according to another embodiment of the present application;

FIG. 8 is a cross-sectional view of an upper shaft in one embodiment of the present application;

FIG. 9 is a cross-sectional view of an upper shaft in another embodiment of the present application;

FIG. 10 is a schematic view of the structure of the upper shaft in an embodiment of the present application;

FIG. 11 is a schematic view of the structure of an upper shaft according to another embodiment of the present application;

FIG. 12 is a cross-sectional view of a lower shaft in an embodiment of the present application;

FIG. 13 is a cross-sectional view of a lower shaft in another embodiment of the present application;

FIG. 14 is a schematic view of a lower shaft according to an embodiment of the present application;

FIG. 15 is a schematic view of the construction of the lower shaft in another embodiment of the present application;

FIG. 16 is a schematic view of a rotating member according to an embodiment of the present application;

FIG. 17 is another schematic structural view of a housing in an embodiment of the present application;

FIG. 18 is a schematic structural view of another embodiment of a housing according to the present application;

FIG. 19 is a schematic view of a further embodiment of a housing according to the present application;

description of reference numerals: 10. a cargo box; 100. a box frame; 200. a case plate; 300. a hinge; 301. a fixing member; 310. a rotating shaft; 311. an upper shaft; 3101. a first chamber; 3111. a first top wall; 3112. a first side wall; 311a, a first arc-shaped plate; 3113. a first bottom wall; 3114. a first screw; 3115. a first cone; 312. a lower shaft; 3102. a second chamber; 3121. a second top wall; 3122. a second side wall; 312a, a second arcuate plate; 3123. a second bottom wall; 3124. a second screw; 3125. a second cone; 313. a rolling member; 314. an extension shaft; 315. a fixing plate; 302. a rotating member; 3021. a shaft hole; 3022. a first connecting plate; 3023. a carrier plate; 3024. a second connecting plate; 3025. an arc-shaped portion; 3026. a bending section; 400. a box door; 500. a wedge block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In the related art, the storage conditions for the cargo are more severe than the storage conditions for the cargo by the marine transportation due to the long distance and the long transportation time, which also puts higher requirements on containers for the marine transportation, and different requirements can be met by replacing different types of box doors. For example, when transporting metal devices, the box needs to have good sealing performance so as to prevent sea wind from corroding the metal devices, and then the box needs to be replaced by a box door with a sealing rubber strip, and a plurality of small box doors can be replaced by a single large box door. When the living body is transported, the case body is required to have good air permeability, and then the case body needs to be replaced with a case body door with a fan to enhance the ventilation effect. When the flowers are transported, the dehydration condition of the flowers in the box body needs to be frequently observed, so that the box body needs to be replaced by a box body door with an observation window and a lighting lamp, and manual intervention can be timely carried out. Because the box doors of different types are different in size and weight, hinges of different sizes are often used, and due to the fact that the sizes of the pin shaft and the jack of the hinges of different sizes are different, interchangeability is poor, and therefore the hinges need to be replaced when the box doors are replaced every time.

To solve the above problems, as shown in fig. 1-2, the present embodiment provides a cargo box 10 for a marine vessel, the cargo box 10 including a box frame 100, a box body panel 200, a hinge 300, and a box body door 400.

The body frame 100 is used to support the body panels 200 and the body doors 400, and serves as a framework support, and the body frame 100 may be made of hard alloy material to improve the overall rigidity of the cargo box 10.

The box body panels 200 are used to fill the gaps between the box frames 100 to enclose the closed container 10 into a relatively closed space, and the box body panels 200 may be the bottom, top and side surfaces of the container 10. The box plate 200 is generally made of a light, heat-insulating and waterproof material. The inside of the case plate 200 may be provided with a reinforcing rib to improve the structural strength of the case plate 200. The box body plate 200 and the frame 110 may be riveted or screwed.

The bin door 400 is used for access to the cargo container 10 and the bin door 400 is typically provided on a side wall of the cargo container 10. The cabinet door 400 is rotated by the hinge 300, and the hinge 300 may be provided on the cabinet frame 100 or the cabinet panel 200. The box body door 400 and the box body plate 200 enclose together to form an accommodating space, and the accommodating space can be used for placing goods. The number of the box doors 400 may be one, two, or more, and a plurality of the box doors 400 may be provided on the same side wall surface of the cargo box 10 or on a side wall surface different from the cargo box 10.

As shown in fig. 3 to 4, the hinge 300 includes a fixed member 301 and a rotating member 302, and the fixed member 301 may be disposed on the case frame 100 or the case plate 200. The rotating member 302 is provided with a shaft hole 3021, and the fixed member 301 comprises a rotating shaft 310, and the rotating shaft 310 is inserted into the shaft hole 3021 so that the fixed member 301 is hinged to the rotating member 302.

As shown in fig. 4, the rotating shaft 310 includes an upper shaft 311 and a lower shaft 312, and both the upper shaft 311 and the lower shaft 312 have a circular truncated cone shape. Specifically, the upper shaft 311 includes a first top wall 3111, a first side wall 3112 and a first bottom wall 3113, the first top wall 3111 and the first bottom wall 3113 are arranged opposite to each other, the first side wall 3112 is connected with the first top wall 3111 and the first bottom wall 3113, and the first top wall 3111 is larger than the first bottom wall 3113. The lower shaft 312 includes a second top wall 3121, a second side wall 3122 and a second bottom wall 3123, the second top wall 3121 and the second bottom wall 3123 are disposed opposite to each other, the second side wall 3122 connects the second top wall 3121 and the second bottom wall 3123, and the second top wall 3121 is smaller than the second bottom wall 3123.

Referring again to fig. 3 and 4, when the fixed member 301 and the rotating member 302 are in hinged engagement, the first bottom wall 3113 of the upper shaft 311 and the second top wall 3121 of the lower shaft 312 are disposed opposite to each other, the first bottom wall 3113 and the second top wall 3121 are both located in the shaft hole 3021, and the first side wall 3112 and the second side wall 3122 abut against the wall of the shaft hole 3021. It is understood that the upper shaft 311 and the lower shaft 312 may be partially or entirely located within the shaft bore 3021. The upper shaft 311 and the lower shaft 312 may be fixed by being fixedly connected to the case frame 100 or the case plate 200 by a connector, so as to prevent shaking. It can be understood that, because the upper shaft 311 and the lower shaft 312 are separately arranged, the shaft hole 3021 of the rotating member 302 may also be replaced by two coaxially arranged grooves, and the upper shaft 311 and the lower shaft 312 are respectively inserted into the two grooves for rotation.

In summary, the fixing element 301 is disposed on the box frame 100, the rotating element 302 is disposed on the box door 400, because the upper shaft 311 and the lower shaft 312 of the fixing element 301 are in a truncated cone shape, the upper shaft 311 and the lower shaft 312 can be in insertion fit with the shaft holes 3021 of different diameters, even if the diameters of the shaft holes 3021 of the rotating element 302 disposed on different types of box doors 400 are different, the rotating element can be directly inserted into the rotating shaft 310 of the fixing element 301 disposed on the box frame 100 for rotation, and the rotating shaft 310 on the box door 400 has better universality with the fixing element 301 on the box frame 100, thereby achieving convenient and rapid replacement of the box door 400 and improving the working efficiency.

It is understood that the upper shaft 311 and the lower shaft 312 may be sleeved with a circular truncated cone shaped sleeve to accommodate the larger diameter shaft hole 3021.

As shown in fig. 5-6, in some embodiments, the rotating shaft 310 further includes a plurality of rolling members 313, the plurality of rolling members 313 are embedded in the first side wall 3112 of the upper shaft 311 and the second side wall 3122 of the lower shaft 312, and the plurality of rolling members 313 are rotatable with respect to the first side wall 3112 and the second side wall 3122. The rolling members 313 may be rollers and/or balls. The rolling members 313 are preferably evenly distributed on the first side wall 3112 and the second side wall 3122. The rolling members 313 are disposed flush with or protruding from the first side wall 3112 and the second side wall 3122 to abut against the hole wall of the shaft hole 3021. Since the rolling resistance of the rolling member 313 is less than the sliding friction resistance between the hole wall of the shaft hole 3021 and the first and second side walls 3112 and 3122, the rolling member 313 can make the rotation between the fixed member 301 and the rotating member 302 smoother, and the opening and closing of the box door 400 is easier and more labor-saving. And the abrasion between the rotating shaft 310 and the hole wall of the shaft hole 3021 can be reduced. To further reduce wear, grease may be applied to the first side wall 3112, the second side wall 3122, and the rolling members 313.

As shown in fig. 7, in some embodiments, the rotating shaft 310 further includes an extension shaft 314, the first bottom wall 3113 of the upper shaft 311 is in threaded connection with one end of the extension shaft 314, and the other end of the extension shaft 314 is in threaded connection with the second top wall 3121 of the lower shaft 312. The extension shaft 314 fixedly connects the upper shaft 311 and the lower shaft 312, and can improve the stability of the upper shaft 311 and the lower shaft 312. Meanwhile, in order to accommodate the shaft holes 3021 of different depths, the extension shaft 314 may have a telescopic function.

As shown in fig. 8-10, in some embodiments, the upper shaft 311 and the lower shaft 312 are hollow. Specifically, the first top wall 3111, the first side wall 3112 and the first bottom wall 3113 enclose a first chamber 3101. The first side wall 3112 includes a plurality of first arc-shaped plates 311a arranged around the first top wall 3111, that is, the plurality of first arc-shaped plates 311a are spliced to form the first side wall 3112. Upper shaft 311 also includes a first threaded shaft 3114 and a first cone 3115. First screw 3114 passes first roof 3111 and with first roof 3111 spiro union, first screw 3114 is connected with first diapire 3113, first cone 3115 sets up on first screw 3114 and is located first cavity 3101, when rotating first screw 3114, first screw 3114 can drive first cone 3115 and reciprocate, the conical surface butt a plurality of first arcs 311a of first cone 3115 for a plurality of first arcs 311a rotate around first roof 3111, thereby can adjust gathering together or opening degree of a plurality of first arcs 311a, and then adjust the contained angle between first lateral wall 3112 and the first roof 3111. As shown in fig. 10, the first arc plates 311a are in a gathered state, and as shown in fig. 11, the first arc plates 311a are in an opened state. The action of the first arc-shaped plate 311a to gather or unfold is similar to the action of the umbrella to gather or unfold.

Because the inclination angle of the first side wall 3112 can be adjusted, the first side wall 3112 can be more attached to the hole wall of the shaft hole 3021, and the stability of the rotating member 302 during rotation is improved.

As shown in fig. 12-14, the second top wall 3121, the second side wall 3122, and the second bottom wall 3123 enclose the second cavity 3102. The second side wall 3122 includes a plurality of second arc-shaped plates 312a annularly arranged around the second bottom wall 3123, that is, the plurality of second arc-shaped plates 312a are spliced to form the second side wall 3122. The lower shaft 312 further includes a second screw 3124 and a second cone 3125. The second screw 3124 penetrates through the second bottom wall 3123 and is screwed with the second bottom wall 3123, the second screw 3124 is connected with the second top wall 3121, the second cone 3125 is disposed on the second screw 3124 and located in the second chamber 3102, when the second screw 3124 is rotated, the second screw 3124 can drive the second cone 3125 to move up and down, the conical surface of the second cone 3125 abuts against the plurality of second arc-shaped plates 312a, so that the plurality of second arc-shaped plates 312a rotate around the second bottom wall 3123. Therefore, the gathering degree or the opening degree of the second arc-shaped plates 312a can be adjusted, and further the included angle between the second side wall 3122 and the second bottom wall 3123 can be adjusted. As shown in fig. 14, the second arcuate plates 312a are in a gathered condition and, as shown in fig. 15, the second arcuate plates 312a are in an open condition. The action of the second arcuate plates 312a to converge or diverge is similar to the action of an umbrella to collapse or unfold.

Because the inclination angle of the second side wall 3122 can be adjusted for the second side wall 3122 can be more laminated with the pore wall of shaft hole 3021, has improved the stability of rotating piece 302 when rotating.

As shown in fig. 3 and 5, in some embodiments, the fixing member 301 includes a fixing plate 315, the fixing plate 315 is fixedly disposed on the case frame 100, and the upper shaft 311 and the lower shaft 312 are slidably disposed on the fixing plate 315. For example, the fixing plate 315 may be provided with a sliding slot, two sliding blocks are disposed in the sliding slot, and the upper shaft 311 and the lower shaft 312 are respectively connected to the two sliding blocks. When the box door 400 is detached, the upper shaft 311 is moved upward, the lower shaft 312 is moved downward, and thus the rotation shaft 310 is separated from the shaft hole 3021, and then the box door 400 is detached. When the box door 400 is installed, the box door 400 is temporarily fixed, the upper shaft 311 moves downward, the lower shaft 312 moves upward, the rotating shaft 310 is inserted into the shaft hole 3021, and then the upper shaft 311 and the lower shaft are fixed to the fixing plate 315 by a clamp, so that the upper shaft 311 and the lower shaft 312 are locked and prevented from being loosened. Moreover, when the depth of the shaft hole 3021 is different, different depths of the shaft hole 3021 can be accommodated by moving the upper shaft 311 and the lower shaft 312.

As shown in fig. 16, in some embodiments, the rotating member 302 includes a first connecting plate 3022, a bearing plate 3023 and a second connecting plate 3024. The shaft hole 3021 is disposed on the first connecting plate 3022, the first connecting plate 3022 is used for connecting with the rotating shaft 310, the second connecting plate 3024 is used for connecting with the box door 400, and the bearing plate 3023 is used for connecting the first connecting plate 3022 and the second connecting plate 3024. The first connecting plate 3022, the carrier plate 3023, and the second connecting plate 3024 may be formed by separate welding or may be formed integrally. The bearing plate 3023 is formed by extending from the first connecting plate 3022, and an arc-shaped portion 3025 is formed between the bearing plate 3023 and the first connecting plate 3022; the second connecting plate 3024 is formed by extending from the carrier, a bending portion 3026 is formed between the second connecting plate 3024 and the carrier 3023, and the bending direction of the arc portion 3025 is the same as that of the bending portion 3026. The aluminum material can be reduced in tension by bending twice during the manufacturing of the rotating member 302, and the structural strength of the aluminum material can be ensured. As shown in fig. 17 to 18, when the box door 400 is closed, the box door 400 is flush with the box plate 200, and the arc portion 3025 and the bent portion 3026 allow the shaft hole 3021 to be disposed away from the box plate 200, thereby allowing the box door 400 to have a larger opening and closing angle.

In some embodiments, the two ends of the shaft hole 3021 are shaped as round truncated cones to fit the upper shaft 311 and the lower shaft 312, so that the contact area between the upper shaft 311 and the lower shaft 312 and the shaft hole 3021 is increased, the pressure applied to the first side wall 3112 of the upper shaft 311 and the second side wall 3122 of the lower shaft 312 is reduced, which is beneficial to reduce wear, and the rotating component 302 is more stable during rotation.

As shown in fig. 1, since the bottom of the box door 400 is provided with the box frame 100, the bottom end of the box door 400 is higher than the bottom end of the cargo box 10, and the box door 400 needs to be lifted by a certain height to be installed, so that the rotating member 302 is inserted into the fixing member 301, however, the difficulty of manually lifting and stabilizing the box door is high, and the mechanical tool sometimes cannot be operated due to limited space. In some embodiments, the cargo box 10 further includes a lift member, which may be disposed inside or outside the box door 400, with an output end of the lift member disposed toward the box frame 100 at the bottom of the box door 400. The output end of the lifting member is used for jacking the box body door 400 when extending out, and the lifting member can be one or more. The lifting piece can be of a worm gear structure, the worm extends out or retracts into the bottom of the box body door 400 to be abutted against the ground or the box body frame 100 by rotating the worm gear, and meanwhile, the worm cannot move when the worm gear is not rotated due to the self-locking characteristic of the worm gear. When the box door 400 is installed, the output end of the lifter may be extended from the bottom of the box door 400, the box door 400 is lifted to a desired height, and then installed, and then the output end of the lifter is retracted. When the box door 400 is detached, the output end of the lifting member may be extended from the bottom of the box door 400 until abutting against the ground or the box frame 100, and then the box door is detached, and finally the output end of the lifting member is retracted. It should be noted that the case door 400 may generate a continuous pulling force on the hinge 300 due to gravity, which may affect the service life of the hinge 300. When the box door 400 is in a closed state, the output end of the lifting piece can be extended to abut against the box frame 100, so that the box door 400 is supported by the box frame 100, the box door 400 is prevented from being supported only by the hinge 300, and the service life of the hinge 300 is prolonged.

In some embodiments, the containers 10 further include guide rails disposed at the bottom of the container frame 100, and dovetail grooves are disposed at the top of the container frame 100, when two containers 10 need to be stacked, the guide rails of one container 10 can be slidably disposed at the dovetail grooves of another container 10, and the two containers 10 can be fixed together with the dovetail grooves through the guide rails, so that the safety during stacking is ensured, and two or more containers 10 can be simultaneously lifted during transportation, thereby improving the work efficiency.

As shown in fig. 19, in general, the opening direction of the box door 400 is left or right, but sometimes to facilitate placing goods, the container 10 may be placed by rotating 90 ° so that the box door 400 is opened downward or upward, in some embodiments, the container 10 further includes a wedge 500, an inclined surface of the wedge 500 is attached to an outer side surface of the box door 400, an end of the wedge 500, which is relatively thick, is disposed toward the hinge 300, the box door 400 may serve as a pad abutting against the ground to facilitate climbing of a wheeled transportation vehicle (a cart, a car, etc.) into or out of the container 10, and the wedge 500 may increase a bearing capacity of the box door 400 to increase rigidity of the box door 400. It will be appreciated that when the bin door 400 is single, the bin door 400 is larger in size, the bin door 400 is angled at a lesser angle as a pallet, and wheeled transport is easier to access the cargo box 10.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.