Double-layer integrated folding box type structure

Abstract

A double-layer integrated folding box type structure comprises a base plate frame, a middle plate frame and a top plate frame which are arranged in a stacked mode in the vertical direction and are parallel to one another, a first movable side frame capable of being folded and unfolded is arranged between the base plate frame and the middle plate frame, and the first movable side frame can move to be overlapped with the base plate frame and the middle plate frame; the supporting plate can be opened to be perpendicular to the chassis frame and the middle plate frame to be supported between the chassis frame and the middle plate frame; a second movable side frame which can be folded and opened is arranged between the middle tray frame and the top tray frame, and the second movable side frame can move to be overlapped with the middle tray frame and the top tray frame and can be opened to be perpendicular to the middle tray frame and the top tray frame to be supported between the middle tray frame and the top tray frame. According to the double-layer integrated folding box type structure, a double-layer structure is designed into an integrated structure, compared with two independent containers, a top tray structure can be omitted, the transportation height can be reduced, the transportation cost can be saved, the material cost and the labor cost can be reduced, time, labor and materials are saved, and the double-layer integrated folding box type structure is high in practicability and suitable for being vigorously popularized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a container field especially relates to a double -deck integrated folding box formula structure. BACKGROUND

[0002] For the convenience of transportation, people have designed the folding container, the folded container, usually only a few sandwich board thickness, transport to the scene, through hoisting equipment hoist one side (usually the top), the whole container can be opened, then the scene simple installation work, can form the whole container.

[0003] The container is convenient for transportation and facilitates on-site construction, and has been widely applied. In the prior art, a single container can be folded, and in actual use, multiple spaces can be required, and the commonly used method is to stack two containers after opening for use, one container being stacked on the other container. This method can realize a double-layer structure, but is not conducive to cost reduction. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving above-mentioned problem, and provides a double -deck integrated folding box formula structure.

[0005] To solve the above problems, the utility model provides a double -deck integrated folding box formula structure, characterized by,

[0006] It includes the bottom tray frame, the middle tray frame and the top tray frame which are arranged in the vertical direction and parallel to each other,

[0007] The first movable frame is arranged between the bottom tray frame and the middle tray frame, and the first movable frame can be movable to the bottom tray frame and the middle tray frame, and can be opened to the bottom tray frame and the middle tray frame perpendicular and supported between the bottom tray frame and the middle tray frame.

[0008] The second movable frame is arranged between the middle tray frame and the top tray frame, and the second movable frame can be movable to the middle tray frame and the top tray frame, and can be opened to the middle tray frame and the top tray frame perpendicular and supported between the middle tray frame and the top tray frame.

[0009] Further, the first movable frame is connected to the two ends of the bottom tray frame along the first direction X, the bottom end of the first movable frame is rotatably connected to the bottom tray frame, and the top end of the first movable frame is movably connected to the middle tray frame and can move along the first direction X.

[0010] The second movable side frame is connected to the two ends of the middle disc frame along the first direction X, the bottom end of the first movable side frame is rotationally connected to the middle disc frame, and the top end of the second movable side frame is movably connected to the top disc frame and can move along the first direction X.

[0011] Further, it also includes:

[0012] The first fixed side frame is connected to the two ends of the bottom disc frame along the second direction Z, the bottom end of the first fixed side frame is hingedly connected to the bottom disc frame, the top end of the first fixed side frame is a free end, the first fixed side frame can be moved to be overlapped with the bottom disc frame and the middle disc frame, and can be opened to be perpendicular to the bottom disc frame and the middle disc frame;

[0013] The second fixed side frame is connected to the two ends of the middle disc frame along the second direction Z, the bottom end of the second fixed side frame is hingedly connected to the middle disc frame, the top end of the second fixed side frame is a free end, the second fixed side frame can be moved to be overlapped with the middle disc frame and the top disc frame, and can be opened to be perpendicular to the middle disc frame and the top disc frame;

[0014] The second direction Z is a horizontal direction and is perpendicular to the first direction X.

[0015] Further, a first rolling member which can roll is arranged on both sides of the top end of the first movable side frame, a first stroke groove extending along the first direction X is arranged at the bottom of the middle disc frame, and the first rolling member is arranged in the first stroke groove and can move along the first stroke groove.

[0016] A second rolling member which can roll is arranged on both sides of the top end of the second movable side frame, a second stroke groove extending along the first direction X is arranged at the bottom of the top disc frame, and the second rolling member is arranged in the second stroke groove and can move along the second stroke groove.

[0017] Further, the first movable side frame is a rectangular frame structure, a first pin shaft is fixedly arranged on both sides of the first movable side frame along the second direction Z, the axial direction of the first pin shaft is along the second direction Z, and the first rolling member is a bearing which is sleeved on the first pin shaft.

[0018] The second movable side frame is a rectangular frame structure, a second pin shaft is fixedly arranged on both sides of the second movable side frame along the second direction Z, the axial direction of the second pin shaft is along the second direction Z, and the second rolling member is a bearing which is sleeved on the second pin shaft.

[0019] Further, the bottom frame comprises a first bottom beam, a bottom head and a plurality of second bottom beams, the first bottom beams are connected in head-to-tail to form a rectangular frame structure, and the first bottom beams are connected through the bottom head; the second bottom beams are fixedly connected to the inside of the rectangular frame structure enclosed by the first bottom beams.

[0020] A lifting hole for lifting is arranged on the outer side wall of the bottom head.

[0021] Further, the middle frame and the top frame respectively comprise a first top beam, a top head and a plurality of second top beams, the first top beams are connected in head-to-tail to form a rectangular frame structure, and the first top beams are connected through the top head, and the second top beams are fixedly connected to the inside of the rectangular frame structure enclosed by the first top beams.

[0022] A lifting hole for lifting is arranged on the outer side wall of the top head.

[0023] Further, the first top beam comprises a vertical main plate part, an upper bending part is arranged on the inner side of the top of the main plate part, and a lower bending part is arranged on the inner side of the bottom of the main plate part, the upper bending part is formed into an upper strip-shaped groove with an opening facing upward through multiple bending, the lower bending part is formed into a lower strip-shaped groove with an opening facing downward through multiple bending, the upper strip-shaped groove and the lower strip-shaped groove are parallel, and the lower strip-shaped groove forms the first stroke groove and the second stroke groove.

[0024] Further, a connecting groove is arranged on the top head, the connecting groove is through the upper strip-shaped groove to form a first annular groove on the top of the middle frame and the top frame respectively.

[0025] The lower strip-shaped groove is connected in head-to-tail to form a second annular groove on the bottom of the middle frame and the top frame respectively.

[0026] Further, it further comprises a plurality of sandwich panels, the sandwich panels are fixedly installed on the bottom frame, the middle frame, the top frame, the first movable side frame, the second movable side frame, the first fixed side frame and the second fixed side frame.

[0027] The utility model discloses a beneficial contribution lies in, it effectively solved above -mentioned problem. The utility model discloses a double -deck integrated folding box formula structure is double -deck integrated design, it includes bottom tray frame, middle tray frame and top tray frame, and the bottom tray frame and middle tray frame between, and the middle tray frame and top tray frame between all are connected with the movable frame of foldable and openable edge, when transporting, movable frame of edge is folded up and is combined with the bottom tray frame, middle tray frame, top tray frame, to the space can be saved and is convenient for transportation, needs using, first stretches top tray frame in the installation site with hoisting equipment, can open the folding structure of upper layer, after the extension is completed, can continue to stretch to open the folding structure of lower layer, to complete the opening of overall structure, then, carry out simple installation, can put into use. The utility model discloses a double -deck integrated folding box formula structure designs double -deck structure as integrated structure, compared with two independent containers, can cancel a top tray structure, can reduce the transportation height, saves the freight, and can reduce material cost fee and labor cost, it saves time and labor and material, it has very strong practicality, and it is suitable for vigorous promotion. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is the part structure half folding state schematic diagram.

[0029] Figure 2 It is the folding state schematic diagram.

[0030] Figure 3 It is the plane structure schematic diagram of bottom tray frame.

[0031] Figure 4 It is the plane structure schematic diagram of middle tray frame, top tray frame.

[0032] Figure 5 It is the structure schematic diagram of first fixed edge frame 60, second fixed edge frame 70.

[0033] Figure 6 It is the structure schematic diagram of first movable edge frame and second movable edge frame.

[0034] Figure 7 It is the structure schematic diagram of first roof beam.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] Bottom tray frame 10, first bottom beam 11, bottom lifting head 12, second bottom beam 13, middle tray frame 20, top tray frame 30, first movable edge frame 40, first rolling part 41, first pin shaft 42, second movable edge frame 50, second rolling part 51, second pin shaft 52, first fixed edge frame 60, second fixed edge frame 70, first roof beam 81, main plate part 811, upper bending part 812, upper strip slot 8121, lower bending part 813, lower strip slot 8131, top lifting head 82, connecting slot 821, second roof beam 83, first annular slot 84, first direction X, second direction Z. DETAILED DESCRIPTION

[0037] The following examples are provided to further explain and supplement the present invention and do not constitute any limitation to the present invention.

[0038] like Figures 1-7 As shown, the double-layer integrated folding box structure of the present invention includes a bottom frame 10, a middle frame 20, a top frame 30, a first movable side frame 40, and a second movable side frame 50. Furthermore, it may also include a first fixed side frame 60, a second fixed side frame 70 and a sandwich panel.

[0039] The bottom frame 10 , the middle frame 20 and the top frame 30 are stacked in a vertical direction and are parallel to each other, so as to form a two-layer space.

[0040] The first movable side frame 40 is disposed between the base frame 10 and the middle frame 20 and is both foldable and unfoldable. When folded, it overlaps the base frame 10 and the middle frame 20. When unfolded, it is perpendicular to the base frame 10 and the middle frame 20, thereby supporting the base frame 10 and the middle frame 20 to form a three-dimensional space. In this embodiment, the first movable side frame 40 has two sections, which are respectively connected to the two ends of the base frame 10 along the first direction X. The bottom end of the first movable side frame 40 is rotatably connected to the base frame 10, and the top end is movably connected to the middle frame 20 and can move along the first direction X.

[0041] The rotational connection between the first movable side frame 40 and the chassis frame 10 can refer to known technologies. For example, the rotational connection can be achieved by a rotating shaft or a hinge, which enables the first movable side frame 40 to rotate around its connection portion relative to the chassis frame 10. In this way, the first movable side frame 40 can be folded or unfolded.

[0042] Furthermore, in order to facilitate the smooth folding and opening of the first movable side frame 40, a first rolling member 41 is provided on both sides of the top of the first movable side frame 40. The first rolling member 41 is conducive to rolling movement, and it can be a roller, or a component similar to a roller. In this embodiment, the first rolling member 41 is a rolling bearing. Accordingly, in order to provide the first rolling member 41 with movement conditions and constrain the movement of the first rolling member 41, a first travel groove is provided at the bottom of the middle plate frame 20. The first travel groove extends along the first direction X, and is a straight groove, which can constrain the first rolling member 41 to move in a straight line, and can prevent the first rolling member 41 from separating from the middle plate frame 20, so that the top of the first movable side frame 40 forms a movable connection with the middle plate frame 20.

[0043] Further, the first movable side frame 40 is a rectangular frame structure which can be made of steel pipe or steel plate and the like. The first movable side frame 40 is provided with a first pin shaft 42 on each side in the second direction Z. The first pin shaft 42 is fixed to the top of the first movable side frame 40 and has an axial direction along the second direction Z. The first rolling member 41 is sleeved on the first pin shaft 42 and is located outside the first movable side frame 40 on both sides, so as to facilitate walking along the first stroke groove.

[0044] In the embodiment, the first pin shaft 42 includes a first cylindrical part and a first flat cylindrical part. The first rolling member 41 is sleeved on the first cylindrical part, so as to facilitate rolling. The first flat cylindrical part has a planar surface which can be attached to the surface of the first movable side frame 40 and then fixed by a known method. For example, the first flat cylindrical part can be welded with the first movable side frame 40. In the embodiment, a plurality of pin holes are provided on the first flat cylindrical part, and corresponding pin holes are provided on the first movable side frame 40, which can be fixed and connected together by bolts.

[0045] In use, the two first movable side frames 40 will move synchronously. For example, when folding, the two first movable side frames 40 are rotated towards the bottom frame 10. When rotated to be overlapped or substantially overlapped with the bottom frame 10, the two ends of the two first movable side frames 40 provided with the first rolling members 41 will be close to the middle position of the bottom frame 10. When opening, the two first movable side frames 40 are rotated away from the bottom frame 10. The first rolling members 41 walk along the first stroke groove until the first movable side frames 40 are opened to be perpendicular to the bottom frame 10.

[0046] The second movable side frame 50 is arranged between the middle frame 20 and the top frame 30 and can be folded and opened. When folded, it is overlapped between the middle frame 20 and the top frame 30. When opened, it is perpendicular to the middle frame 20 and the top frame 30, thereby being supported between the middle frame 20 and the top frame 30 to form a three-dimensional space. In the embodiment, the second movable side frame 50 is provided with two frames which are respectively connected to the two ends of the middle frame 20 in the first direction X. The bottom end of the second movable side frame 50 is rotationally connected to the middle frame 20, and the top end is movably connected to the top frame 30 and can move in the first direction X.

[0047] The rotational connection between the second movable side frame 50 and the middle frame 20 can refer to known technologies, for example, a rotating shaft can be used to achieve rotational connection, or a hinge can be used to achieve rotational connection. The rotational connection can enable the second movable side frame 50 to rotate relative to the middle frame 20 at the connection position, so that the second movable side frame 50 can be folded or opened.

[0048] Further, to facilitate the folding and unfolding of the second movable side frame 50, a second rolling member 51 is provided on each side of the top end of the second movable side frame 50. The second rolling member 51 is a rolling wheel or a similar component. In this embodiment, the second rolling member 51 is a rolling bearing. To provide a path for the second rolling member 51 and restrict the movement of the second rolling member 51, a second travel groove is provided on the bottom of the top tray 30. The second travel groove extends in the first direction X and is a straight groove that restricts the movement of the second rolling member 51 to a straight line and prevents the second rolling member 51 from separating from the top tray 30, so that the top of the second movable side frame 50 is movably connected to the top tray 30.

[0049] Further, the second movable side frame 50 is a rectangular frame structure that can be made of steel pipes or steel plates. A second pin shaft 52 is fixed to each side of the second movable side frame 50 in the second direction Z. The second pin shaft 52 is fixed to the top of the second movable side frame 50 and extends in the second direction Z. The second rolling member 51 is fitted on the second pin shaft 52 and thus extends outside the second movable side frame 50, so as to facilitate movement along the second travel groove.

[0050] In this embodiment, the second pin shaft 52 includes a second cylindrical portion and a second flat cylindrical portion. The second rolling member 51 is fitted on the second cylindrical portion, so as to facilitate rolling. The second flat cylindrical portion has a flat surface that is attached to the surface of the second movable side frame 50 and then fixed by a known method. For example, the second flat cylindrical portion can be welded to the second movable side frame 50. In this embodiment, the second flat cylindrical portion has a plurality of pin holes, and the second movable side frame 50 has corresponding pin holes, which are connected by bolts.

[0051] In use, the two second movable side frames 50 move synchronously. For example, when folding, the two second movable side frames 50 are rotated towards the middle tray 20. When the two second movable side frames 50 are folded or substantially folded, the two ends of the second movable side frames 50 that have the second rolling members 51 are close to the middle of the middle tray 20. When unfolding, the two second movable side frames 50 are rotated away from the middle tray 20. The second rolling members 51 move along the second travel groove until the second movable side frames 50 are unfolded to be perpendicular to the middle tray 20.

[0052] For the cubic space, in order to keep the strength and stability of the structure, four sides need to be supported, therefore, further, a first fixed side frame 60 is arranged between the bottom frame 10 and the middle frame 20, and a second fixed side frame 70 is arranged between the middle frame 20 and the top frame 30.

[0053] The first fixed side frame 60 is a rectangular frame structure, and is provided with two frames which are connected to two ends of the bottom frame 10 along the second direction Z. The second direction Z is a horizontal direction and is perpendicular to the first direction X. In this way, two pairs of first fixed side frames 60, two pairs of first movable side frames 40, one bottom frame 10 and one middle frame 20 can build a cubic space.

[0054] The bottom end of the first fixed side frame 60 is hinged to the bottom frame 10, and the top end of the first fixed side frame 60 is a free end. The first fixed side frame 60 can rotate relative to the bottom frame 10. When folded, it can be stacked with or substantially stacked with the bottom frame 10. When opened, it can be rotated to be perpendicular to the bottom frame 10. The first fixed side frame 60 is used to open after the first movable side frame 40 forms a rudiment of a cubic space. The top end of the first fixed side frame 60 is a free end when it leaves the factory and is not connected to the middle frame 20. When the first fixed side frame 60 is opened to be perpendicular during on-site installation, it is fixed on site and fixedly connected to the middle frame 20. For example, a corresponding pin hole can be provided on the middle frame 20, and a corresponding pin hole can be provided on the top of the first fixed side frame 60. When the first fixed side frame 60 is opened to be perpendicular, the pin holes of the two are correspondingly matched, and a locking pin is inserted into them, so that the first fixed side frame 60 is connected to the middle frame 20, and is supported between the middle frame 20 and the bottom frame 10, so as to enhance the strength and structural stability.

[0055] The second fixed side frame 70 is a rectangular frame structure, and is provided with two frames which are connected to two ends of the middle frame 20 along the second direction Z. In this way, two pairs of second fixed side frames 70, two pairs of second movable side frames 50, one middle frame 20 and one top frame 30 can build a cubic space.

[0056] The bottom end of the second fixed side frame 70 is hinged to the middle tray 20, and the top end of the second fixed side frame 70 is a free end. The second fixed side frame 70 can rotate relative to the middle tray 20. When folded, it can be folded to be overlapped with or substantially overlapped with the middle tray 20. When unfolded, it can be rotated to be perpendicular to the middle tray 20. The second fixed side frame 70 is used to form a rough shape of a three-dimensional space after the second movable side frame 50 is unfolded. The top end of the second fixed side frame 70 is a free end when it is shipped, and is not connected to the top tray 30. When the second fixed side frame 70 is unfolded to be perpendicular, it is fixed on site and is fixedly connected to the top tray 30. For example, a corresponding pin hole can be provided on the top tray 30, and a corresponding pin hole can be provided on the top of the second fixed side frame 70. When the second fixed side frame 70 is unfolded to be perpendicular, the pin holes of the two correspond to each other, and a locking pin is inserted into them, so that the second fixed side frame 70 is connected to the top tray 30, and is supported between the middle tray 20 and the top tray 30, so as to enhance the strength and structural stability.

[0057] Further, the bottom tray 10 is a rectangular frame structure, which includes four first bottom beams 11, four bottom hangers 12 and a plurality of second bottom beams 13. The first bottom beams 11 are connected end to end to form a rectangular frame structure. The first bottom beams 11 are connected by the bottom hangers 12. The bottom hangers 12 are hollow rectangular blocks, and the planar side walls thereof can be welded to the first bottom beams 11, so that the first bottom beams 11 are connected together by welding. Hoisting holes are provided on the outer side walls of the bottom hangers 12 for hoisting. The second bottom beams 13 are fixedly connected inside the rectangular frame structure enclosed by the first bottom beams 11, and are used to strengthen the structural strength and provide support for the sandwich panels to prevent collapse.

[0058] The middle tray 20 and the top tray 30 have the same structure, and each include four first top beams 81, four top hangers 82 and a plurality of second top beams 83. The first top beams 81 are connected end to end to form a rectangular frame structure. The first top beams 81 are connected by the top hangers 82. The top hangers 82 are hollow rectangular blocks, and the planar side walls thereof can be welded to the first top beams 81, so that the first top beams 81 are connected together by welding. Hoisting holes are provided on the outer side walls of the top hangers 82 for hoisting. The second top beams 83 are fixedly connected inside the rectangular frame structure enclosed by the first top beams 81, and are used to strengthen the structural strength and provide support for the sandwich panels to prevent collapse.

[0059] To conveniently provide the first stroke groove and the second stroke groove for the first rolling member 41 and the second rolling member 51, the first top beam 81 comprises a vertical main plate part 811, an upper bending part 812 is arranged at the inner side of the top of the main plate part 811, and a lower bending part 813 is arranged at the inner side of the bottom of the main plate part 811. The upper bending part 812 and the lower bending part 813 are arranged at the same side of the main plate part 811 and are formed by straightly bending the plate-shaped main body for multiple times. The upper bending part 812 is formed by multiple bending to form an upper strip-shaped groove 8121 with an upward opening. The lower bending part 813 is formed by multiple bending to form a lower strip-shaped groove 8131 with an upward opening. The upper strip-shaped groove 8121 and the lower strip-shaped groove 8131 are parallel. The upper strip-shaped groove 8121 is used for hidden installation of other objects, such as wire routing, water pipe laying, etc. The lower strip-shaped groove 8131 forms the first stroke groove and the second stroke groove for the first rolling member 41 and the second rolling member 51.

[0060] Further, the top lifting head 82 is further provided with a connecting groove 821. The shape of the connecting groove 821 is not limited, and it is mainly used for connecting and transitioning the upper strip-shaped groove 8121. The connecting groove 821 is through with the upper strip-shaped groove 8121. Thus, the four upper strip-shaped grooves 8121 and the four connecting grooves 821 are connected in sequence, and a first annular groove 84 in a ring shape is formed at the top of the middle rack 20 and the top rack 30, respectively.

[0061] The lower strip-shaped groove 8131 is directly connected in sequence to form a second annular groove in a ring shape at the bottom of the middle rack 20 and the top rack 30, respectively. To enable the lower strip-shaped groove 8131 to be directly connected in sequence, the two ends of the first top beam 81 should be in a stepped structure. The length of the top of the main plate part 811 is less than the length of the bottom to form a step. The overall length of the upper bending part 812 is shorter than the overall length of the lower bending part 813. Thus, the top lifting head 82 is connected at the step. The end of the upper bending part 812 is aligned with the side wall of the top lifting head 82 for connection. The upper bending part 812 is connected through the top lifting head 82. The lower bending part 813 is not connected through the top lifting head 82, and is directly connected in sequence between the lower bending part 813.

[0062] The sandwich panel (not shown in the figure) is arranged on the bottom rack 10, the middle rack 20, the top rack 30, the first movable side frame 40, the second movable side frame 50, the first fixed side frame 60, and the second fixed side frame 70. The sandwich panel can be selected from the known sandwich panel. The sandwich panel is fixed on the corresponding frame to form a plate-shaped structure to form the side wall, the bottom plate, and the top plate of the container. The sandwich panel can be provided with corresponding doors, windows, and other structures according to the known technology. The doors, windows, and other structures can be pre-installed on the bottom rack 10, the middle rack 20, the top rack 30, the first movable side frame 40, the second movable side frame 50, the first fixed side frame 60, and the second fixed side frame 70 when leaving the factory.

[0063] Thus, the double-layer integrated folding box structure is formed. During transportation, the first movable side frame 40, the second movable side frame 50, the first fixed side frame 60 and the second fixed side frame 70 are all in a folded state, wherein from bottom to top, they are the bottom disc frame 10, the first fixed side frame 60, the first movable side frame 40, the middle disc frame 20, the second fixed side frame 70, the second movable side frame 50 and the top disc frame 30. When transported to the site for installation, a lifting device is used, the lifting hook is hung at the lifting hole of the top lifting head 82, then the top disc frame 30 is lifted, with the upward movement of the top disc frame 30, the upper second movable side frame 50 is opened until the second movable side frame 50 is opened to be perpendicular to the middle disc frame 20 and the top disc frame 30, then the connection between the second movable side frame 50 and the top disc frame 30 is locked (usually by a locking pin) ; then the second fixed side frame 70 can be manually pushed and pulled to open the second fixed side frame 70 to be perpendicular to the middle disc frame 20 and the top disc frame 30, then the second fixed side frame 70 is locked and connected with the top disc frame 30 (usually by a locking pin) ; then the lifting device is used to continue lifting, at this time, with the upward movement of the upper structure, the lower first movable side frame 40 is opened until the first movable side frame 40 is opened to be perpendicular to the middle disc frame 20 and the bottom disc frame 10, then the connection between the first movable side frame 40 and the middle disc frame 20 is locked; then the first fixed side frame 60 can be manually pushed and pulled to open the first fixed side frame 60 to be perpendicular to the middle disc frame 20 and the bottom disc frame 10, then the first fixed side frame 60 is locked and connected with the middle disc frame 20, so as to be completely and integrally opened. Then, simple installation can be carried out on site according to needs.

[0064] The double-layer integrated folding box structure can complete installation of two-layer structure by stretching, has simple structure, is convenient to operate, cancels a top disc structure relative to two independent folding containers, and has smaller overall thickness after folding, so that transportation height can be reduced, and transportation cost and material cost can be saved.

[0065] Although the utility model is disclosed through the above embodiment, the scope of the utility model is not limited thereto, and each component can be replaced by similar or equivalent elements understood by those skilled in the art without departing from the concept of the utility model.

Claims

1. A double-layer integrated folding box structure, characterized in that, it comprises a bottom tray frame (10), a middle tray frame (20) and a top tray frame (30) which are stacked in a vertical direction and parallel to each other, a first movable side frame (40) is arranged between the bottom tray frame (10) and the middle tray frame (20), which can be moved to be stacked with the bottom tray frame (10) and the middle tray frame (20), and can be opened to be perpendicular to the bottom tray frame (10) and the middle tray frame (20) and supported between them; a second movable side frame (50) is arranged between the middle tray frame (20) and the top tray frame (30), which can be moved to be stacked with the middle tray frame (20) and the top tray frame (30), and can be opened to be perpendicular to the middle tray frame (20) and the top tray frame (30) and supported between them.

2. The double-layer integrated folding box structure of claim 1, characterized in that, the first movable side frame (40) is connected to both ends of the bottom tray frame (10) in a first direction X, the bottom end of the first movable side frame (40) is rotatably connected to the bottom tray frame (10), and the top end of the first movable side frame (40) is movably connected to the middle tray frame (20) and can move in the first direction X; the second movable side frame (50) is connected to both ends of the middle tray frame (20) in the first direction X, the bottom end of the first movable side frame (40) is rotatably connected to the middle tray frame (20), and the top end of the second movable side frame (50) is movably connected to the top tray frame (30) and can move in the first direction X.

3. The two-layer one-piece folding box structure of claim 2, wherein, it further comprises: a first fixed side frame (60) connected to both ends of the bottom tray frame (10) in a second direction Z, the bottom end of the first fixed side frame (60) is hingedly connected to the bottom tray frame (10), and the top end of the first fixed side frame (60) is a free end, the first fixed side frame (60) can be moved to be stacked with the bottom tray frame (10) and the middle tray frame (20), and can be opened to be perpendicular to the bottom tray frame (10) and the middle tray frame (20); a second fixed side frame (70) connected to both ends of the middle tray frame (20) in the second direction Z, the bottom end of the second fixed side frame (70) is hingedly connected to the middle tray frame (20), and the top end of the second fixed side frame (70) is a free end, the second fixed side frame (70) can be moved to be stacked with the middle tray frame (20) and the top tray frame (30), and can be opened to be perpendicular to the middle tray frame (20) and the top tray frame (30); the second direction Z is a horizontal direction and perpendicular to the first direction X.

4. The double-layer integrated folding box structure of claim 3, characterized in that, A first scroll member (41) is arranged on each side of the top end of the first movable side frame (40), and a first travel groove extending along the first direction X is arranged at the bottom of the middle tray frame (20), and the first scroll member (41) is arranged in the first travel groove and can travel along the first travel groove. A second scroll member (51) is arranged on each side of the top end of the second movable side frame (50), and a second travel groove extending along the first direction X is arranged at the bottom of the top tray frame (30), and the second scroll member (51) is arranged in the second travel groove and can travel along the second travel groove.

5. The double-layer integrated folding box structure of claim 4, wherein the first movable side frame (40) is a rectangular frame structure, and a first pin shaft (42) is fixedly arranged on each side of the first movable side frame (40) along the second direction Z, the axial direction of the first pin shaft (42) is along the second direction Z, and the first scroll member (41) is a bearing which is sleeved on the first pin shaft (42). The second movable side frame (50) is a rectangular frame structure, and a second pin shaft (52) is fixedly arranged on each side of the second movable side frame (50) along the second direction Z, the axial direction of the second pin shaft (52) is along the second direction Z, and the second scroll member (51) is a bearing which is sleeved on the second pin shaft (52).

6. The double-layer integrated folding box structure of claim 5, wherein the bottom tray frame (10) comprises four first bottom beams (11), four bottom lifting heads (12), and a plurality of second bottom beams (13), the first bottom beams (11) are connected end to end to form a rectangular frame structure, and the first bottom beams (11) are connected by the bottom lifting heads (12); the second bottom beams (13) are fixedly connected to the inside of the rectangular frame structure formed by the first bottom beams (11). A lifting hole for lifting is arranged on the outer side wall of the bottom lifting head (12). The middle tray frame (20) and the top tray frame (30) each comprise four first top beams (81), four top lifting heads (82), and a plurality of second top beams (83), the first top beams (81) are connected end to end to form a rectangular frame structure, the first top beams (81) are connected by the top lifting heads (82), and the second top beams (83) are fixedly connected to the inside of the rectangular frame structure formed by the first top beams (81). A lifting hole for lifting is arranged on the outer side wall of the top lifting head (82).

7. The two-layer one-piece folder box structure of claim 6, wherein, 8. The double-layer integrated folding box structure of claim 7, wherein ​ ​ The first roof beam (81) comprises a vertical main plate part (811), an upper bending part (812) is arranged on the inner top side of the main plate part (811), a lower bending part (813) is arranged on the inner bottom side of the main plate part (811), the upper bending part (812) is formed by multiple bending to form an upper strip-shaped slot (8121) with an opening facing upward, the lower bending part (813) is formed by multiple bending to form a lower strip-shaped slot (8131) with an opening facing downward, the upper strip-shaped slot (8121) and the lower strip-shaped slot (8131) are parallel, and the lower strip-shaped slot (8131) forms the first stroke slot and the second stroke slot.

9. The double-layer integrated folding box structure according to claim 8, characterized in that, The top lifting head (82) is provided with a connecting slot (821), the connecting slot (821) is through the upper strip-shaped slot (8121) to form a first annular slot (84) on the top of the middle tray frame (20) and the top tray frame (30) respectively; The lower strip-shaped slot (8131) is connected at the tail end to form a second annular slot on the bottom of the middle tray frame (20) and the top tray frame (30) respectively.

10. The two-layer one-piece folder box structure of claim 9, wherein, It also comprises a plurality of sandwich plates, which are fixedly installed on the bottom tray frame (10), the middle tray frame (20), the top tray frame (30), the first movable side frame (40), the second movable side frame (50), the first fixed side frame (60) and the second fixed side frame (70).

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