CN215665129U - Space expansion structure and container with same - Google Patents

Abstract

The utility model discloses a space expansion structure and a container with the same, wherein the space expansion structure comprises a first frame structure, a first door body (3) and an extension structure, wherein the first frame structure is composed of a first vertical beam (1), a second vertical beam (2), a top beam and a bottom beam, and the first door body (3) is arranged between the first vertical beam (1) and the second vertical beam (2); the extending structure is movably connected with the first frame structure. The space expansion structure and the container with the same disclosed by the utility model can be additionally provided with the expansion structure at the side part or the end part of the container body, the expansion structure can be folded in the container transportation or moving process and is closed and stored in the container frame, and the expansion structure can also be unfolded in the using process, so that facilities can be conveniently placed, goods can be placed and displayed, and the using space can be enlarged.

Description

Space expansion structure and container with same

Technical Field

The utility model relates to the technical field of container manufacturing, in particular to a space expansion structure and a container with the same.

Background

The container, english name container, is a large-scale container with certain strength, rigidity and specification specially used for turnover. The container is used for transferring goods, the goods can be directly loaded in the warehouse of a shipper and unloaded in the warehouse of a consignee, and the goods do not need to be taken out from the container for reloading when vehicles and ships are changed midway. In recent years, the application field of containers is more and more extensive, and the containers can be used in the fields of storage, temporary buildings, movable houses, equipment loading and energy storage. At present, when the container is used as a kiosk, a display and marketing table, a selling room or a house, on one hand, the container needs to have sufficient loading capacity, on the other hand, facilities need to be placed in the using process, goods are displayed or a large using space is needed, and in the prior art, the container with a door body structure only arranged at the end part or the side part of a box body cannot meet the using requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a space expansion structure and a container with the same.

The space expansion structure provided by the utility model comprises a first frame structure consisting of the first vertical beam (1), the second vertical beam (2), a top beam and a bottom beam, a first door body (3) and an extension structure, wherein the first door body (3) is arranged between the first vertical beam (1) and the second vertical beam (2); the extension structure is movably connected with the first frame structure.

The first door body (3) and the extension structure are arranged side by side from the inside to the outside of the container in the first frame structure. The first door body (3) is in any form of an inward-opening split door structure, an outward-opening split door structure, a horizontal sliding door, a vertical upward sliding door, a sliding door and a folding door; preferably, the first door body (3) is a rolling door. Said extension structure comprises said movable floor (4); the bottom of the movable bottom plate (4) is hinged with the bottom beam. The movable bottom plate (4) comprises a second frame structure formed by rectangular pipes or angle steel, the first panel (41) and the second panel (42); the two sides of the second frame structure are the first supporting frame (43) and the second supporting frame (44) with the same structure and size; the first panel (41) is of a C-shaped structure with downward extending parts at two sides; the second panel (42) is of a C-shaped structure with upward extending parts at two sides; the width of the second panel (42) is greater than the width of the first panel (41); the first supporting frame (43) and the second supporting frame (44) are respectively welded on two sides of the first panel (41); and two sides of the second panel (42) are respectively welded with the positions, close to the outer sides, of the bottoms of the first square pipe (43) and the second square pipe (44). The extension structure further comprises a second door body, and the second door body comprises a split door structure formed by the first door plate (51) and the second door plate (52); the first door panel (51) is hinged with the first vertical beam (1); the second door panel (52) is hinged to the second vertical beam (2). The extension structure is further provided with the third door panel (61) and the fourth door panel (62); the side of the third door panel (61) is hinged with the free side of the first door panel (51); the side of the fourth door panel (62) is hinged to the free side of the second door panel (52). The width of the third door panel (61) is less than or equal to the width of the first door panel (51), and the width of the fourth door panel (62) is less than or equal to the width of the second door panel (52); and/or the height of the third door panel (61) is equal to or less than the height of the first door panel (51), and the height of the fourth door panel (62) is equal to or less than the height of the second door panel (52). And locks, clamping hooks or wind hooks are arranged at the positions, close to the free sides, of the third door panel (61) and the fourth door panel (62). The bottom edges of the first door panel (51) and the second door panel (52) are provided with first connecting components; and second connecting parts matched with the first connecting parts are arranged on the edges of the two sides of the movable bottom plate (4). The bottom and/or the top of the inner sides of the first door panel (51) and the second door panel (52) are/is provided with a U-shaped groove, and a first limiting part is arranged in the U-shaped groove; the first vertical beam (1) and the second vertical beam (2) are provided with second limiting parts matched with the first limiting parts; or the bottom and/or the top of the inner sides of the first door panel (51) and the second door panel (52) are/is provided with a U-shaped groove, and a first limiting part is further arranged in the U-shaped groove; and a second limiting component matched with the first limiting component is arranged on the bottom beam and/or the top beam. And at least one U-shaped groove or reinforcing rib is arranged in the middle of the first door panel (51) and the second door panel (52). The bottom of the inner sides of the first door panel (51) and the second door panel (52) is provided with a first U-shaped groove, and the top of the inner sides of the first door panel (51) and the second door panel (52) is provided with a second U-shaped groove; the bottom plate of the first U-shaped groove is provided with an extending structure or the width of the bottom plate of the first U-shaped groove is larger than that of the top plate of the first U-shaped groove; the top plate of the second U-shaped groove is provided with an extending structure or the width of the top plate of the second U-shaped groove is larger than that of the bottom plate of the second U-shaped groove; the third door panel (61) and the fourth door panel (62) have a height equal to or less than the distance between the bottom plate of the first U-shaped groove and the top plate of the second U-shaped groove.

The container provided by the utility model comprises the space expansion structure. The container provided by the utility model further comprises the first corner post (101) and the second corner post (102); the first corner post (101) and the second corner post (102) are located at both ends of an end or side of the container; the top beam is the top longitudinal beam (103) or the top cross beam of the container, and the bottom beam is the bottom longitudinal beam (104) or the bottom cross beam of the container; the tops of the first corner column (101) and the second corner column (102) are fixed with the top beam, and the bottoms of the first corner column (101) and the second corner column (102) are fixed with the bottom beam; the space expansion structure is fixed with the first corner post (101), the second corner post (102), the top beam and the bottom beam.

The container provided by the utility model further comprises the first corner post (101), the second corner post (102) and a vertical beam arranged between the first corner post (101) and the second corner post (102), wherein the first corner post (101) and the second corner post (102) are positioned at two ends of the end part or the side part of the container; the top beam is the top longitudinal beam (103) or the top cross beam of the container, and the bottom beam is the bottom longitudinal beam (104) or the bottom cross beam of the container; the tops of the first corner column (101) and the second corner column (102) are fixed with the top beam, and the bottoms of the first corner column (101) and the second corner column (102) are fixed with the bottom beam; the space expansion structure is fixed to any one of the first corner post (101) and the second corner post (102), the vertical beam, the top beam and the bottom beam.

The container provided by the utility model further comprises the first corner post (101), the second corner post (102), the first vertical beam (1) arranged between the first corner post (101) and the second corner post (102) and the second vertical beam (2) arranged between the first corner post (101) and the second corner post (102), wherein the first corner post (101) and the second corner post (102) are positioned at two ends of the end part or the side part of the container; the top beam is the top longitudinal beam (103) or the top cross beam of the container, and the bottom beam is the bottom longitudinal beam (104) or the bottom cross beam of the container; the tops of the first corner column (101) and the second corner column (102) are fixed with the top beam, and the bottoms of the first corner column (101) and the second corner column (102) are fixed with the bottom beam; the space expansion structure is fixed with the first vertical beam (1), the second vertical beam (2), the top beam and the bottom beam.

The space expansion structure and the container with the same can be additionally provided with the expansion structure at the side part or the end part of the container body, the expansion structure can be folded in the container transportation or moving process and is closed and stored in the container frame, so that the universality and convenience of container transportation are fully utilized, and the expansion structure can be unfolded in the using process, so that facilities can be placed, goods can be placed for display, and the using space is enlarged.

Drawings

Fig. 1 is a schematic structural diagram of a space expansion structure in a second door body opening state according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a space expansion structure according to a first embodiment of the present invention, in a state where a second door body is opened and a third door panel and a fourth door panel are turned over and enclosed;

fig. 3 is a schematic cross-sectional view of the movable floor of the space expansion structure according to the first embodiment of the present invention, in a direction parallel to the container body;

fig. 4 is a schematic side view of the spatial expansion structure according to the first embodiment of the present invention, in a stacked and received state, showing the mutual positions of the first door panel, the second door panel, the third door panel, the fourth door panel, and the movable bottom plate;

fig. 5 is a schematic top view of the space expansion structure according to the first embodiment of the present invention, when the first door panel is opened and the second door panel is closed;

fig. 6 is a schematic structural view illustrating a space expansion structure of a container according to a second embodiment of the present invention, wherein the space expansion structure is fixed to the first corner post, the second corner post, and the bottom beam;

fig. 7 is a schematic structural view illustrating a space expansion structure of a container according to a second embodiment of the present invention, wherein the space expansion structure is fixed to the first corner post, the first vertical beam, and the bottom beam;

fig. 8 is a schematic structural view illustrating a space expansion structure of a container according to a second embodiment of the present invention, wherein the space expansion structure is fixed to the first vertical beam, the second vertical beam, and the bottom beam.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

As shown in fig. 1 to 5, the embodiment provides a space expansion structure, which includes a first frame structure composed of the first vertical beam 1, the second vertical beam 2, a top beam and a bottom beam, the first door body 3 and an extension structure, wherein the first door body 3 is disposed between the first vertical beam 1 and the second vertical beam 2; the extension structure is movably connected with the first frame structure. Those skilled in the art will understand that the first vertical beam 1 and the second vertical beam 2 may be container corner posts at two ends of a container side, or may be vertical beams arranged at the sides of a container, where the top beam is the top longitudinal beam 103 of the container, and the bottom beam is the bottom longitudinal beam 104 of the container; so that the first door body 3 and the extension structure are located at the side of the container.

Preferably, the first vertical beam 1 and the second vertical beam 2 can also be container corner posts at two ends of the end part of a container, at the moment, the top beam is a container top cross beam, and the bottom beam is a container bottom cross beam; thus, the first door 3 and the extension structure are located at the end of the container and occupy all the space at the end of the container, and a container space extension structure can be formed at the end of the container.

The first door body 3 and the extension structure are arranged in the first frame structure side by side from the inside to the outside of the container. The first door body 3 can be an inward opening split door structure, an outward opening split door structure or a horizontal sliding door, a vertical upward sliding door, a sliding door and a folding door; preferably, in the space expansion structure provided in this embodiment, the first door 3 is a rolling door. Those skilled in the art will appreciate that the first door body 3 can also be formed by combining a plurality of door structures. Therefore, the space occupied by the space expansion structure can be effectively saved, and the opening height of the rolling door structure can be adjusted according to needs in the use process, so that the space formed by the extension structure and the space in the box body are set to be in a completely separated, completely opened or semi-separated state.

The extension structure comprises a movable bottom plate 4; the bottom of the movable bottom plate 4 is hinged with the bottom beam.

The movable bottom plate 4 comprises a second frame structure formed by rectangular pipes or angle steels, the first panel 41 and the second panel 42; preferably, two side edges of the second frame structure are rectangular pipes with the same structure and size; more preferably, two side edges of the second frame structure are square tubes with the same structure and size; as shown in fig. 3, the two sides of the second frame structure are the first supporting frame 43 and the second supporting frame 44; the first panel 41 is a C-shaped structure with downward extending portions on two sides; the second panel 42 is a C-shaped structure with upward extensions on both sides; the width of the second panel 42 is greater than the width of the first panel 41; the first support frame 43 and the second support frame 44 are respectively welded on two sides of the first panel 41; two sides of the second panel 42 are respectively welded to the bottom of the first support bracket 43 and the bottom of the second support bracket 44 near the outer side. As will be understood by those skilled in the art, the first panel 41, the second panel 42 and the rectangular tube together enclose the movable bottom plate 4, and since the rectangular tube structure, especially the square tube structure, is disposed at the periphery of the movable bottom plate 4, the cross section of the beam of the second frame is largest and most stable, so that the structural strength of the movable bottom plate 4 is enhanced, the structure is simple, and the processing and manufacturing are convenient. The second panel 42 is used as a bottom panel, the first panel 41 is used as a floor panel, and a floor can be laid on the first panel 41 as required to ensure wear resistance and skid resistance.

At least one reinforcing beam 45 is further arranged in the inner cavity of the movable bottom plate 4, the reinforcing beam 45 is arranged in parallel with the first square tube 43 and the second square tube 44, and the reinforcing beam 45 can be in a C-shaped structure, an L-shaped structure, an I-shaped structure or a rectangular structure. Therefore, the structural stability of the movable bottom plate 4 can be further improved, the movable bottom plate is not easy to deform, and the bearing capacity is stronger.

As will be understood by those skilled in the art, when not in use, the movable floor 4 is turned upwards to an upright state, is accommodated in the first frame structure at a position outside and close to the first door body 3, and is fixed to the first vertical beam 1 and/or the second vertical beam 2 by a fixing member; the false floor 4 turns out downwardly and outwardly into a horizontal position in use, thereby forming an outwardly extending floor at the sides or ends of the container body that is substantially flush with the floor of the container and can be used as a floor for extended spaces.

The extension structure further comprises a second door body, and the second door body comprises a split door structure formed by the first door panel 51 and the second door panel 52; the first door panel 51 is hinged with the first vertical beam 1; the second door panel 52 is hinged to the second vertical beam 2. It will be understood by those skilled in the art that the first door panel 51 and the second door panel 52 are positioned on both sides of the movable floor 4 when opened, thereby making the first door panel 51 and the second door panel 52 both side wall panels of an extended configuration. As will be understood by those skilled in the art, the movable bottom plate 4 is turned down to form a floor extending out of the box body in an extended structure horizontally to the ground, and preferably, the length of the movable bottom plate 4 after being turned down outside the box body is equal to or slightly less than the width of the first door panel 51 or the second door panel 52. According to the size matching and the requirement of the opening width of the first frame structure and the extension length of the movable bottom plate 4 to the outside of the box body, the movable bottom plate 4 can be a single plate or a combined plate in an extensible form, the extensible form comprises one or any combination of folding, drawing, rotating and the like, the movable bottom plate 4 is retracted when turned upwards, the occupied space is reduced, and the extension length of the movable bottom plate 4 to the outside of the box body can be further enlarged when the movable bottom plate 4 is extended and extended after being turned downwards; the second door body can also adopt a split folding door structure, so that the use space can be further expanded after the second door body is extended.

The extension structure is further provided with the third door panel 61 and the fourth door panel 62; the side of the third door panel 61 is hinged to the free side of the first door panel 51; the side of the fourth door panel 62 is hinged to the free side of the second door panel 52. The width of the third door panel 61 is less than or equal to the width of the first door panel 51, and the width of the fourth door panel 62 is less than or equal to the width of the second door panel 52; the third door panel 61 has a height equal to or less than the height of the first door panel 51, and the fourth door panel 62 has a height equal to or less than the height of the second door panel 52. It will be understood by those skilled in the art that the third door panel 61 and/or the fourth door panel 62 may be a single plate or a combination plate in an extensible form, and the extensible form includes one or any combination of folding, drawing, rotating, etc.; the third door panel 61 can be turned to fit the inner surface of the first door panel 51, and the fourth door panel 62 can be turned to fit the inner surface of the second door panel 52, which facilitates the container provided by this embodiment to retract the extending structure and close the second door body during transportation or movement; the third door panel 61 can also be turned to be perpendicular to the first door panel 51, and the fourth door panel 62 can also be turned to be perpendicular to the second door panel 52, so that a split door at the end of the extending structure can be formed, and an extending space is defined by the first door panel 51, the second door panel 52, the third door panel 61 and the fourth door panel 62 together; optionally, the free side of the third door panel 61 and/or the fourth door panel 62 may be further turned outward, and the turning angle of the third door panel 61 relative to the first door panel 51 and the fourth door panel 62 relative to the second door panel 52 may be any angle between 0 degree and 360 degrees.

The bottom edges of the first door panel 51 and the second door panel 52 are both provided with a first connecting component; and second connecting parts matched with the first connecting parts are arranged at the edges of the two sides of the movable bottom plate 4. It can be understood by those skilled in the art that, in the use process, when the movable bottom plate 4 is turned to the horizontal state, the movable bottom plate 4 and the bottoms of the first door panel 51 and the second door panel 52 can be fixed by the first connecting part and the second connecting part, so that the first door panel 51 and the second door panel 52 can be prevented from shaking, and the movable bottom plate 4 can be supported, thereby maintaining the stability of the extending structure.

The bottom and/or the top of the inner sides of the first door panel 51 and the second door panel 52 are/is provided with a U-shaped groove, and a first limiting part is further arranged in the U-shaped groove; and the first vertical beam 1 and the second vertical beam 2 are provided with second limiting parts matched with the first limiting parts. It will be understood by those skilled in the art that when the first door panel 51 and the second door panel 52 are in the open state, the first door panel 51 and the second door panel 52 can be fixed to the first vertical beam 1 and the second vertical beam 2 by a first limiting part and a second limiting part, respectively. One skilled in the art can understand that the first limiting part and the second limiting part can be a buckle structure, a wind hook structure or a wind bracing structure; when the first door body 3 is closed, the first limiting part is accommodated in the space of the U-shaped groove, so that the occupied space can be saved, and the U-shaped grooves are formed in the first door panel 51 and the second door panel 52, so that the structural strength of the door panels can be improved; the second position-limiting component may also be disposed on the bottom beam or the top beam, so as to fix the opened first door panel 51 and the second door panel 52 to the bottom beam or the top beam.

The middle parts of the first door panel 51 and the second door panel 52 are also provided with at least one U-shaped groove or reinforcing rib. Those skilled in the art will understand that a plurality of U-shaped grooves are formed on the first door panel 51 and the second door panel 52, which can further improve the structural strength of the door panels; the U-shaped grooves on the first door panel 51 and the second door panel 52 may be formed by integrally rolling or splicing metal plates.

The bottom of the inner sides of the first door panel 51 and the second door panel 52 is provided with a first U-shaped groove, and/or the top of the inner sides of the first door panel 51 and the second door panel 52 is provided with a second U-shaped groove; the bottom plate of the first U-shaped groove is provided with an extending structure or the width of the bottom plate of the first U-shaped groove is larger than that of the top plate of the first U-shaped groove; the top plate of the second U-shaped groove is provided with an extending structure or the width of the top plate of the second U-shaped groove is larger than that of the bottom plate of the second U-shaped groove; the height of the third door panel 61 and the fourth door panel 62 is equal to or less than the distance between the bottom plate of the first U-shaped groove and the top plate of the second U-shaped groove. It will be understood by those skilled in the art that when the third door panel 61 is attached to the first door panel 51 and the fourth door panel 62 is attached to the second door panel 52, the third door panel 61 and the fourth door panel 62 are clamped between the top plate of the second U-shaped groove and the bottom plate of the first U-shaped groove, and the bottom plate of the second U-shaped groove and the top plate of the first U-shaped groove abut against the surfaces of the third door panel 61 and the fourth door panel 62. This not only securely accommodates the third door panel 61 and the fourth door panel 62, but also allows the inner walls of the expanded space on both sides to have a relatively flat structure in this state.

The extending structure of the bottom plate of the bottom first U-shaped groove on the inner side of the first door panel 51 and the second door panel 52 may be hook-shaped. Thus, when the third door panel 61 and the fourth door panel 62 are in the open state, the extension structure can be used as the first connecting component which is used for cooperating with the two side edges of the movable bottom plate 4 to form a limiting and supporting function.

Locks, hooks or wind hooks are further arranged at positions of the third door panel 61 and the fourth door panel 62 close to the free sides, so that the third door panel 61 and the fourth door panel 62 are fixed in a state of being perpendicular to the first door panel 51 and the second door panel 52. Those skilled in the art will understand that such a lock, a hook or a wind hook can be accommodated in the space of the U-shaped groove at the middle position on the first door panel 51 and the second door panel 52, so that when the third door panel 61 is attached to the first door panel 51 and the fourth door panel 62 is attached to the second door panel 52, the lock, the hook or the wind hook is accommodated in the space of the U-shaped groove, thereby saving the occupied space.

As can be understood by those skilled in the art, when the container is put into use, the first door panel 51 and the second door panel 52 of the second door body are opened first, the movable bottom plate 4 is turned down to a horizontal state, and the movable bottom plate 4 is fixed to the first door panel 51 and the second door panel 52 through the first connecting member and the second connecting member, respectively. The third door panel 61 and the fourth door panel 62 can be unfolded, the first door panel 51 and the second door panel 52 are respectively fixed with the vertical beam or the bottom beam through the first door panel 51 limiting part and the second door panel 52 limiting part, the third door panel 61 and the fourth door panel 62 are both turned to be vertical to the first door panel 51 and the second door panel 52, and the free sides of the third door panel 61 and the fourth door panel 62 are fixed/locked, so that an expansion space in a closed form is formed; it is also possible to turn the free side of the third door panel 61 and/or the fourth door panel 62 outward continuously to form an opening, or to unfold the third door panel 61 and/or the fourth door panel 62 without turning, and only use the first door panel 51 and the second door panel 52 and the movable floor 4 to form an expanded space with an opening. And the first door body 3 is used as a partition body between the space in the box and the expansion space and can be opened or closed as required. When the container is transported or an extension structure is not needed, the first door body 3 is opened or closed as required, the third door plate 61 is turned to be attached to the inner side of the first door plate 51, the fourth door plate 62 is turned to be attached to the inner side of the second door plate 52, then the movable bottom plate 4 is turned upwards to be in a vertical state and movably fixed with the vertical beam, and finally the first door plate 51 and the second door plate 52 of the second door body are closed and locked, so that a laminated storage structure which sequentially comprises the first door body 3, the movable bottom plate 4, the third door plate 61 and/or the fourth door plate 62, the first door plate 51 and/or the second door plate 52 from inside to outside is formed at the end part or the side part of the container, does not exceed the outer contours of a container corner post and a corner piece, and meets the container transportation requirement.

Example two

The embodiment provides a container, which comprises the space expansion structure in the first embodiment. It will be appreciated by those skilled in the art that the space expansion structure may be provided at the end of the container or at the side of the container.

The container provided by the embodiment comprises the first corner column 101 and the second corner column 102; the first corner post 101 and the second corner post 102 are located at both ends of the container end; the top beam is a top cross beam of the container, and the bottom beam is a bottom cross beam of the container; the tops of the first corner column 101 and the second corner column 102 are both fixed with the top beam, and the bottoms of the first corner column 101 and the second corner column 102 are both fixed with the bottom beam; the space expansion structure is fixed with the first corner column 101, the second corner column 102, the top beam and the bottom beam. It will be appreciated by those skilled in the art that the width of the space expansion arrangement thus corresponds to the width of the end of the container.

As shown in fig. 6, the container provided by the present embodiment includes the first corner post 101 and the second corner post 102; the first corner post 101 and the second corner post 102 are located at both ends of the container side; the top beam is the top longitudinal beam 103 of the container, and the bottom beam is the bottom longitudinal beam 104 of the container; the tops of the first corner column 101 and the second corner column 102 are both fixed with the top beam, and the bottoms of the first corner column 101 and the second corner column 102 are both fixed with the bottom beam; the space expansion structure is fixed with the first corner column 101, the second corner column 102, the top beam and the bottom beam. It will be appreciated by those skilled in the art that the width of the space expansion arrangement thus corresponds to the width of the sides of the container.

As shown in fig. 7, the container provided in this embodiment further includes a vertical beam disposed between the first corner post 101 and the second corner post 102, where the vertical beam may be the first vertical beam 1 or the second vertical beam 2, and the space expansion structure is fixed to the first corner post 101, the second vertical beam 2, and the bottom beam, or the space expansion structure is fixed to the second corner post 102, the first vertical beam 1, the top beam, and the bottom beam. It will be appreciated by those skilled in the art that the space-expanding structure thus has a width which is less than the width of the sides or ends of the container and is located adjacent one side.

As shown in fig. 8, the container provided in this embodiment further includes the first vertical beam 1 and the second vertical beam 2 disposed between the first corner post 101 and the second corner post 102, and the space expansion structure is fixed to the first vertical beam 1, the second vertical beam 2, the top beam and the bottom beam. It will be appreciated by those skilled in the art that the space-expanding structure thus has a width which is less than the width of the sides or ends of the container and is located close to the middle.

In the container provided by the embodiment, an opening part is arranged at the position of the end part or the side part corresponding to the space expansion structure, and the first door body (3) is arranged at the opening part. As will be understood by those skilled in the art, the first door body (3) of the space expansion structure is matched with the opening part to form an opening and closing access.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (17)

1. A space expansion structure is characterized by comprising a first frame structure, a first door body (3) and an extension structure, wherein the first frame structure is composed of a first vertical beam (1), a second vertical beam (2), a top beam and a bottom beam, and the first door body (3) is arranged between the first vertical beam (1) and the second vertical beam (2); the extension structure is movably connected with the first frame structure.

2. A space expansion structure according to claim 1, wherein the first door body (3) and the extension structure are arranged side by side from inside to outside of the container in the first frame structure.

3. The space expansion structure of claim 2, wherein the first door body (3) is in any one form of an inward opening side-by-side door structure, an outward opening side-by-side door structure, a horizontally sliding door, a vertically upward sliding door, a folding door, and a rolling door.

4. A space expanding structure according to claim 3, wherein said extending structure comprises a movable base plate (4); the bottom of the movable bottom plate (4) is hinged with the bottom beam.

5. The space expanding structure according to claim 4, wherein said movable floor (4) comprises a second frame structure consisting of rectangular tubes or angles, a first panel (41) and a second panel (42); two side edges of the second frame structure are a first supporting frame (43) and a second supporting frame (44) which have the same structure and size; the first panel (41) is of a C-shaped structure with downward extending parts at two sides; the second panel (42) is of a C-shaped structure with upward extending parts at two sides; the width of the second panel (42) is greater than the width of the first panel (41); the first supporting frame (43) and the second supporting frame (44) are respectively welded on two sides of the first panel (41); two sides of the second panel (42) are respectively welded with the positions, close to the outer sides, of the bottoms of the first support frame (43) and the second support frame (44).

6. The space expansion structure of claim 4, wherein the extension structure further comprises a second door body including a split door structure of a first door panel (51) and a second door panel (52); the first door panel (51) is hinged with the first vertical beam (1); the second door panel (52) is hinged to the second vertical beam (2).

7. The space expanding structure according to claim 6, wherein the expanding structure is further provided with a third door panel (61) and a fourth door panel (62); the side of the third door panel (61) is hinged with the free side of the first door panel (51); the side of the fourth door panel (62) is hinged to the free side of the second door panel (52).

8. The space expanding structure of claim 7, wherein the width of the third door panel (61) is less than or equal to the width of the first door panel (51), and the width of the fourth door panel (62) is less than or equal to the width of the second door panel (52); and/or the height of the third door panel (61) is equal to or less than the height of the first door panel (51), and the height of the fourth door panel (62) is equal to or less than the height of the second door panel (52).

9. The space expanding structure according to claim 8, wherein the third door panel (61) and the fourth door panel (62) are provided with a lock, a hook or a wind hook at a position close to the free side.

10. The space expansion structure according to claim 6, wherein the bottom edges of the first door panel (51) and the second door panel (52) are each provided with a first connecting member; and second connecting parts matched with the first connecting parts are arranged on the edges of the two sides of the movable bottom plate (4).

11. The space expansion structure of claim 7, wherein the bottom and/or top of the inner sides of the first door panel (51) and the second door panel (52) are provided with a U-shaped groove, and a first limiting part is arranged in the U-shaped groove; the first vertical beam (1) and the second vertical beam (2) are provided with second limiting parts matched with the first limiting parts; or the bottom and/or the top of the inner sides of the first door panel (51) and the second door panel (52) are/is provided with a U-shaped groove, and a first limiting part is further arranged in the U-shaped groove; and a second limiting component matched with the first limiting component is arranged on the bottom beam and/or the top beam.

12. The space expanding structure according to claim 11, wherein said first door panel (51) and said second door panel (52) are further provided with at least one U-shaped groove or rib in the middle thereof.

13. The space expansion structure of claim 11, wherein the bottom of the inner sides of the first door panel (51) and the second door panel (52) is provided with a first U-shaped groove, and the top of the inner sides of the first door panel (51) and the second door panel (52) is provided with a second U-shaped groove; the bottom plate of the first U-shaped groove is provided with an extending structure or the width of the bottom plate of the first U-shaped groove is larger than that of the top plate of the first U-shaped groove; the top plate of the second U-shaped groove is provided with an extending structure or the width of the top plate of the second U-shaped groove is larger than that of the bottom plate of the second U-shaped groove; the third door panel (61) and the fourth door panel (62) have a height equal to or less than the distance between the bottom plate of the first U-shaped groove and the top plate of the second U-shaped groove.

14. A container, characterized in that it comprises a space expanding structure according to any one of claims 1 to 13.

15. A container as claimed in claim 14, characterised by comprising a first corner post (101) and a second corner post (102); the first corner post (101) and the second corner post (102) are located at both ends of an end or side of the container; the top beam is a top longitudinal beam (103) or a top cross beam of the container, and the bottom beam is a bottom longitudinal beam (104) or a bottom cross beam of the container; the tops of the first corner column (101) and the second corner column (102) are fixed with the top beam, and the bottoms of the first corner column (101) and the second corner column (102) are fixed with the bottom beam; the space expansion structure is fixed with the first corner post (101), the second corner post (102), the top beam and the bottom beam.

16. A container as claimed in claim 15, characterised by comprising said first corner post (101), said second corner post (102) and a vertical beam disposed between said first corner post (101) and said second corner post (102), said first corner post (101) and said second corner post (102) being located at either end of an end or side of said container; the top beam is the top longitudinal beam (103) or the top cross beam of the container, and the bottom beam is the bottom longitudinal beam (104) or the bottom cross beam of the container; the tops of the first corner column (101) and the second corner column (102) are fixed with the top beam, and the bottoms of the first corner column (101) and the second corner column (102) are fixed with the bottom beam; the space expansion structure is fixed to any one of the first corner post (101) and the second corner post (102), the vertical beam, the top beam and the bottom beam.

17. A container as claimed in claim 15, characterised by comprising said first corner post (101), said second corner post (102), said first vertical beam (1) disposed between said first corner post (101) and said second corner post (102), and said second vertical beam (2) disposed between said first corner post (101) and said second corner post (102), said first corner post (101) and said second corner post (102) being located at either end of the end or side of the container; the top beam is the top longitudinal beam (103) or the top cross beam of the container, and the bottom beam is the bottom longitudinal beam (104) or the bottom cross beam of the container; the tops of the first corner column (101) and the second corner column (102) are fixed with the top beam, and the bottoms of the first corner column (101) and the second corner column (102) are fixed with the bottom beam; the space expansion structure is fixed with the first vertical beam (1), the second vertical beam (2), the top beam and the bottom beam.

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