WO2017202310A1 - 折叠箱 - Google Patents

折叠箱 Download PDF

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Publication number
WO2017202310A1
WO2017202310A1 PCT/CN2017/085565 CN2017085565W WO2017202310A1 WO 2017202310 A1 WO2017202310 A1 WO 2017202310A1 CN 2017085565 W CN2017085565 W CN 2017085565W WO 2017202310 A1 WO2017202310 A1 WO 2017202310A1
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WO
WIPO (PCT)
Prior art keywords
cavity
folding box
side plate
base
box according
Prior art date
Application number
PCT/CN2017/085565
Other languages
English (en)
French (fr)
Original Assignee
上海鸿研物流技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=56594225&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2017202310(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 上海鸿研物流技术有限公司 filed Critical 上海鸿研物流技术有限公司
Priority to EP17802156.4A priority Critical patent/EP3466823B1/en
Priority to JP2018561239A priority patent/JP2019516633A/ja
Priority to AU2017269437A priority patent/AU2017269437B2/en
Priority to US16/304,225 priority patent/US11459145B2/en
Publication of WO2017202310A1 publication Critical patent/WO2017202310A1/zh
Priority to ZA2018/08648A priority patent/ZA201808648B/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
    • B65D11/18—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected
    • B65D11/1833—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material collapsible, i.e. with walls hinged together or detachably connected whereby all side walls are hingedly connected to the base panel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0209—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together stackable or joined together one-upon-the-other in the upright or upside-down position
    • B65D21/0226—Containers with movable parts adapted to be placed in alternative positions for stacking the containers at different levels, i.e. without nesting of the containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D21/00—Nestable, stackable or joinable containers; Containers of variable capacity
    • B65D21/02—Containers specially shaped, or provided with fittings or attachments, to facilitate nesting, stacking, or joining together
    • B65D21/0235—Containers stackable in a staggered configuration

Definitions

  • the present invention relates to containers, and in particular to a folding box.
  • the existing folding box has a fixed side panel thickness and height.
  • the side panels When in use, the side panels are relatively erected, and the four side panels are interlocked to form a relatively closed space to accommodate the goods, and after the goods are emptied, the cabinet needs to be It is recycled, in order to increase cost savings, the side panels of the cabinet are folded, so that more cabinets can be accommodated in the same space, and the recycling process is easy to clean, especially when the folding box is used for loading.
  • foods such as fruits and vegetables are fresh, it is especially important to clean after use.
  • the cabinet should be safe and reliable in the use of the goods, and the side panels should be easily and quickly unlocked and folded when the goods are empty.
  • the main body structure of the box side panel is composed of a thin wall and an arrangement of reinforcing ribs on the surface thereof.
  • the side plate structure is one, and the recessed portion of the mesh rib is liable to remain in the rapid cleaning. Dirt, low efficiency.
  • the single thin-wall structure has a single ability in the form of bending and compression resistance, especially in the hinged part of the side plate and the base, and the single thin wall connects the side plate main body and the hinge, especially in the box body.
  • the inner surface of the base is pressed and recessed downward.
  • the side panel is hinged to the base retaining edge, the retaining edge will be inwardly slid with the recess in the base, and the side panel is also randomly protected from the side of the hinge. The side is pulled and deformed to the inside.
  • the side panel especially near the lower edge of the hinge, supports and corrects the depression of the base and the inward deformation of the retaining edge.
  • the side panel The near hinge part is made of a single thin wall. When the load is increased, it cannot resist the deformation of the base retaining edge inward, and the inside of the box base is recessed, causing the inner side of the base retaining edge to further cause deformation in the side plate.
  • the side panel can not assist and improve the depression in the base
  • the multi-layer box when used for stacking, the upper layer of the cargo will be deformed with the thin wall of the base and the cargo in the box below it will be pressed, to some extent
  • There are safety hazards in the goods especially when the box carries the fragile carrier such as beverages and milk bottles, it is more likely to be damaged by the upper and lower layers during transportation or use due to the deformation of the base of the box, and the box is reused.
  • the force deformation is large, which easily leads to fatigue damage and shortens the service life of the cabinet.
  • a folding box including a base and two pairs of opposite side plates, the outer periphery of the base is provided with a retaining edge, and the side plate is hinged to the
  • the base may be folded relative to the base, the side panels are double-gloss side panels, and at least one pair of the lower edges of the side panels are provided with cavities, and when the folding boxes are upright, the two pairs are opposite a pair of side panel lower edges and a pair of side panel lower edges are interconnected to form a frame, and the frame is hinged to the base by a hinge, thereby forming a resistance against the base sinking and the trimming Concave reinforcing member.
  • the portion of the side panel provided with the cavity is flush with the adjacent portion.
  • the outer side surface of the side panel is provided with at least one recess extending along a height direction of the side panel, wherein the recess is shaped to form a side panel when two adjacent folding boxes are close to each other The cavity in the height direction.
  • the cavity is formed within the thickness of the side panels.
  • the cavity extends a predetermined length along a length direction of the side panel, and the length of the predetermined length ranges from 0.8 to 1 times the length of the side panel.
  • the two recesses are respectively disposed adjacent to the connecting portions of the left and right ends of the side panel, and at least one other of the recesses is disposed between the two recesses.
  • the depth of the recess in the thickness direction of the side plate ranges from 0.1 to 0.9 times the thickness of the side plate.
  • the height of the recess ranges from 0.1 to 0.9 times the height of the side panel.
  • a cavity extending in a height direction of at least one of the side plates is further disposed in the side plate.
  • the side plates are further provided with a plurality of cavities spaced apart from each other in the height direction.
  • the side plates are further provided with a plurality of cavities spaced apart along the length direction of the side plates.
  • the upper edge of the side panel is provided with a cavity extending along the length direction of the side panel, and the left end or the right end of the side panel is provided with an air extending along the height direction of the side panel Cavity.
  • the cavity formed by the side plate edge and the lower edge and the cavity formed by the left end portion of the side plate constitute a "C"-shaped structure, and/or the space formed by the side plate edge and the lower edge
  • the cavity formed by the cavity and the right end of the side plate constitutes an inverted "C" shape.
  • the upper edge of the side plate is provided with a cavity extending along the length direction of the side plate, and a cavity extending along a height direction of the side plate is provided at a left end portion and a right end portion of the side plate.
  • the side panel a cavity formed by the upper edge is in fluid communication with a cavity formed by the left end and the right end of the side plate, and a cavity formed by a lower edge of the side plate and an empty space formed at a left end and a right end of the side plate
  • the chambers are spaced apart from one another.
  • the cavity formed by the lower edge of the side panel and the cavity formed by the left end and the right end of the side panel are spaced apart from each other at the lower left corner and the lower right corner of the side panel, respectively.
  • a cavity extending along a length direction of the side plate is provided at an upper edge of the side plate, and a cavity extending along a height direction of the side plate is provided at a left end portion and a right end portion of the side plate And the cavity of the left end portion and the right end portion of the side plate each include an upper cavity and a lower cavity spaced apart in the height direction of the side plate.
  • the side plate is provided with a plurality of air holes distributed in a cavity formed in the longitudinal direction of the side plate and a region enclosed by the cavity formed in the height direction.
  • the cavity is a gas-assisted cavity.
  • a folding box comprising a base and two pairs of opposite side panels hinged to the base and foldable relative to the base, the side
  • the plate is a double-gloss side plate, and at least one of the side plates is provided with a cavity extending along the side plate by a predetermined length, and an outer side surface of the side plate is provided with at least a length direction extending along a height direction of the side plate A recess, wherein the recess is shaped to form a cavity in the height direction of the side panel when the adjacent two folding boxes are close to each other.
  • the two recesses are respectively disposed adjacent to the connecting portions of the left and right ends of the side panel, and at least one other of the recesses is disposed between the two recesses.
  • the outer side surface of the side panel is provided with at least one recess extending along a height direction of the side panel, wherein the recess is shaped to form a side panel when two adjacent folding boxes are close to each other The cavity in the height direction.
  • the length of the predetermined length ranges from 0.8 to 1 times the length of the side panel.
  • the cavity is formed within the thickness of the side panels.
  • the depth of the recess in the thickness direction of the side plate ranges from 0.1 to 0.9 times the thickness of the side plate.
  • the length of the recess in the height direction of the side plate ranges from 0.1 to 0.9 times the height of the side plate.
  • the cavity extends in a height direction of at least one of the side plates.
  • the side plates are provided with a plurality of cavities spaced apart from each other in the height direction.
  • the cavity extends along a length of the at least one side panel.
  • the side plates are provided with a plurality of cavities spaced apart along the length of the side plates.
  • the side plate is provided with a plurality of air holes distributed in a cavity formed in the longitudinal direction of the side plate and a region enclosed by the cavity formed in the height direction.
  • the cavity is a gas-assisted cavity.
  • a folding box including a base and two pairs of opposite side panels hinged to the base and foldable relative to the base, characterized in that
  • the side panel is a double-gloss side panel, at least one of the side panels is provided with a cavity extending along the side panel by a predetermined length, and a top surface of the side panel is provided with a protrusion, the base of the base
  • the lower bottom surface is provided with a groove matching with the protrusion.
  • At least two of the protrusions are provided on a top surface of each of the side panels.
  • the length of the predetermined length ranges from 0.8 to 1 times the length of the side panel.
  • the outer side surface of the side panel is provided with a recess extending in the height direction.
  • the depth of the recess in the thickness direction of the side plate ranges from 0.1 to 0.9 times the thickness of the side plate.
  • the height of the recess ranges from 0.1 to 0.9 times the height of the side panel.
  • the cavity extends in a height direction of at least one of the side plates.
  • the side plates are provided with a plurality of cavities spaced apart from each other in the height direction.
  • the cavity extends along a length of the at least one side panel.
  • the side plates are provided with a plurality of cavities spaced apart along the length of the side plates.
  • the side plate is provided with a plurality of air holes distributed in a cavity formed in the longitudinal direction of the side plate and a region enclosed by the cavity formed in the height direction.
  • the cavity is a gas-assisted cavity.
  • a folding box comprising a base and two pairs of opposite side panels hinged to the base and foldable relative to the base, the side
  • the plate is a double-gloss side plate, and at least a pair of the lower edges of the side plates are internally formed with a cavity extending a predetermined length along a length direction of the side plates, and a lower edge of the cavity is formed with another
  • the lower edges of the opposite side plates are connected to each other to form a frame.
  • the two cavities respectively extend along the height direction of the side plates and are respectively disposed in the connecting portions of the left and right ends of the side plates.
  • the cavity extends in a height direction from an upper edge of the side panel to a lower edge of the side panel, Or extending a predetermined length downward from the upper edge of the side panel or upwardly from the lower edge of the side panel by a predetermined length.
  • each of the side plates are provided with a cavity extending along the length of the side plate, so that when the two pairs of opposite side plates are in an upright state, the two pairs
  • the cavity of the upper edge of the opposing side panels forms a rectangular frame
  • the cavity of the lower edge of the two opposing pairs of side panels forms a rectangular frame.
  • the ratio of length to width of the folding box is equal to 3:2, and the bottom surface of the base is provided with a plurality of rows of grooves arranged along the width direction of the base.
  • the lower bottom surface of the base is provided with a plurality of grooves at a length of 1/3 of the base and 2/3 of the length of the base.
  • the cavity extends along the length of the side panel and is disposed within the upper and/or lower edge of the side panel.
  • At least a portion of the cavity extends along a length of the side panel at an upper edge of the side panel, and at least another portion of the cavity is along the side of the connection portion at the left and right ends of the side panel
  • the height direction of the panel extends, and at least another portion of the cavity extends along the length of the side panel within the lower edge of the side panel.
  • At least a portion of the cavity extends from a left end to a right end at an upper edge of the side panel along a length direction of the side panel, and at least another portion of the cavity is connected at left and right ends of the side panel
  • the inside portion extends from the lower edge to the upper edge along the height direction of the side plate, and at least a portion of the cavity extends from the left end to the right end in the lower edge of the side plate along the length direction of the side plate.
  • the cavities extending along the length of the side plates are spaced apart from the cavities extending along the height of the side plates.
  • the lower edge of the side panel is provided with a plurality of mutually spaced cavities extending along the length of the side panel.
  • a lower side of the lower edge of the side plate is provided with a hinge seat, two ends of the hinge seat are provided with a hinge shaft, and a middle portion of the hinge seat is provided with a hanging platform, and the base is provided with a hinge a slot, wherein the hinge slot is provided with a first limiting boss and a second limiting boss, wherein the hanging platform cooperates with the first limiting boss, the hinge axis and the second limit The boss fits.
  • the end of the hinge shaft is provided with a third limiting boss, and the contour surface of the third limiting boss cooperates with the second limiting boss.
  • the side panels are hinged to the base by a hinge, the lower edges of the two pairs of opposite side panels are provided with a reinforcing structure, and the reinforcing structure is disposed above the hinge.
  • a lower side of the lower edge of the side panel is provided with a hinge seat, two ends of the hinge seat are provided with a hinge shaft, and the base is provided with a retaining edge, and the guarding edge is provided with the A hinge groove in which the hinge seat cooperates, wherein the guard edge is further provided with a cavity formed along a length direction of the guard edge.
  • the folding box of the present invention maximizes the side plate bending resistance to assist and counteract the deformation of the base guard edge, thereby being able to solve the problem of crushing between the goods which are recessed inwardly due to the pressure of the box base.
  • the folding box of the invention can minimize the dirt residue after cleaning during the repeated use of the folding box, improve the cleaning efficiency, improve the subsidence of the base after the load of the box body, and solve the multi-layer stacking of the folding box, the base between the upper and lower layers is due to the base
  • the problem of damage caused by collision between objects is caused by the depression of the pressure, and also solves the problem that the box body has a small wall thickness and a high folding rate, and the multi-layer box is piled up and the side plates are pressed, and the side plate is deformed. Stacking failed warehouses pose a safety hazard.
  • Figure 1 is a perspective view of the folding box of the present invention, wherein the side panels are in an upright state;
  • Figure 2 is another perspective view of the folding box of the present invention, wherein a part of the side panels are in a folded state;
  • Figure 3 is an enlarged view of a portion A of Figure 2;
  • Figure 4 is an enlarged view of a portion B of Figure 2;
  • Figure 5 is a perspective view of a short side panel in accordance with an embodiment of the present invention.
  • Figure 6 is a front elevational view of the short side panel of Figure 5;
  • Figure 7 is a cross-sectional view of the short side plate of Figure 5 taken along line A-A;
  • Figure 8 is a cross-sectional view of the short side plate of Figure 5 taken along line B-B;
  • Figure 9 is a perspective view of a long side plate according to an embodiment of the present invention.
  • Figure 10 is a front elevational view of the long side panel of Figure 9;
  • Figure 11 is a cross-sectional view of the long side plate of Figure 10 taken along line C-C;
  • Figure 12 is a cross-sectional view of the long side plate of Figure 10 taken along line D-D;
  • Figure 13 is another perspective view of the folding box of the present invention, wherein the side panels are in an upright state;
  • FIG. 14-16 show a state in which the folding box of the present invention is pressed, wherein FIG. 14 shows a cross-sectional view when the folding box is pressed, FIG. 15 shows the base before deformation, and FIG. 16 shows the base after deformation;
  • FIG. 17 to 19 show the state of stress of each side panel of the folding box of the present invention, wherein Fig. 17 is a plan view, Figure 18 is a cross-sectional view, and Figure 19 is another cross-sectional view;
  • Figure 20 shows a state in which a plurality of folding boxes are stacked in two layers, wherein a broken line shows a lower folding box, and a solid line shows an upper folding box;
  • Figure 21 is a cross-sectional view showing the lower folding box of Figure 20;
  • Figure 22 is an enlarged view of a portion A in Figure 21;
  • Figure 23 is an enlarged view of a portion B in Figure 21;
  • Figure 24 is a cross-sectional view showing the folding box of Figure 20;
  • Figure 25 is an enlarged view of a portion C of Figure 24;
  • Figure 26 is an enlarged view of a portion D in Figure 24;
  • Figures 27-28 show the state in which the two folding boxes in a folded state are stacked together
  • Figure 29 is a cross-sectional view of the folding box of Figure 27;
  • Figure 30 is a view showing a state in which the projections on the side plates of the lower folding box and the recesses on the base of the upper folding box when the two-layer folding boxes are stacked together;
  • Figure 31 is a perspective view of a long side plate according to another embodiment of the present invention.
  • Figure 32 is a front elevational view of the long side panel of Figure 31;
  • Figure 33 is a cross-sectional view taken along line A-A of Figure 32;
  • Figure 34 is a cross-sectional view taken along line B-B of Figure 32.
  • the double-gloss side plate is opposite to the side plate on which the reinforcing rib is disposed on the surface of the conventional side plate, and the outer surface of the double-gloss side plate of the present application does not have the reinforcing rib or the double light.
  • the outer surface of the face panel is only provided with a very small number of ribs.
  • the upper edge of the side panel refers to a portion that extends downward from the top of the side panel.
  • the lower edge of the side panel refers to a portion that extends upward from the bottom surface of the side panel.
  • the present invention provides a foldable and easy-to-clean folding box.
  • the gas-assisted molding of the long and short side panels, the side panels themselves are reinforced by a rectangular skeleton, which increases the resistance to twisting and deformation.
  • the flat base will generally sag downward.
  • the long side of the base protrudes from the upper part and is inclined toward the inner side of the base, while the side of the base is displaced relative to the middle, and the base and the side plate pass.
  • the hinge is hinged, the base is displaced inward, and the lower edge of the side plate is correspondingly pulled by the base, so that the middle part of the side plate is deformed and bent into the box body.
  • the side plate formed by the gas-assisted process not only has the connection around the whole body.
  • the hollow skeleton is supported, and at the lower edge of the hinged base of the side panel, the hinge portion is provided, and the section is rectangular, and the bending resistance is superior to that of the thin wall or the thin wall, and the side can be improved to the maximum extent.
  • the plate is resistant to bending and assists against deformation of the base retaining edge, thereby solving the problem of crushing between the recessed goods after the base of the box is pressed.
  • the folding box of the present invention typically includes a base and two pairs of opposing side panels that are hinged to the base and foldable relative to the base.
  • the side panel of the folding box of the present invention is a double-gloss side panel, and at least one side panel is provided with a cavity extending along the side panel by a predetermined length, and the cavity is formed in the thickness of the side panel, so that the side panel The portion where the cavity is disposed is flush with the adjacent portion. That is, the cavity is located between the inner and outer side faces of the side plates so that the inner side and the outer side of the side plates of the side plates are not protruded from the appearance by the provision of the cavity.
  • the adjacent portion refers to a portion of the side plate adjacent to a portion where the cavity is provided and where no cavity is provided.
  • the length of the predetermined length ranges from 0.8 to 1 times the length of the side panel or 0.8 to 1 times the height of the side panel.
  • the lower edge of at least one pair of side plates of the folding box is provided with a cavity, and when the folding box is upright, a pair of side plates of the pair of opposite side plates have a lower edge and another pair of side plates
  • the lower edge is formed by interconnecting to form a frame, and the frame is hinged to the base by a hinge to form a reinforcing member that resists the depression of the base and the recess of the retaining edge. Since at least a pair of lower edges forming the frame are provided with cavities, the overall strength of the frame is greatly enhanced to form a reinforcing member that resists the lower limit of the base and the recess of the retaining edge.
  • FIG. 1 is a perspective view of a folding box of the present invention, wherein the side panels are in an upright position
  • Figure 2 is another perspective view of the folding box of the present invention, wherein a portion of the side panels are in a folded state.
  • the folding box 100 includes a base 1, a pair of short side plates 2, 2 and a pair of long side plates 3, 3, wherein the base 1 is provided with a retaining edge 10.
  • the short side panels 2 and the long side panels 3 are hinged to the base 1 and are foldable relative to the base 1 respectively.
  • the long side plate 3 and the short side plate 2 are double glossy side plates.
  • Adjacent long side panels and short side panels are releasably locked to each other by a locking mechanism and at least one of the side panels is provided with a cavity extending a predetermined length along the side panels.
  • the long and short side panels are made of a high strength material such as high strength plastic.
  • Figure 5 is a perspective view of the short side plate of the present embodiment
  • Figure 6 is a front view of the short side plate of Figure 5
  • Figure 7 is a cross-sectional view of the short side plate of Figure 5 taken along line AA
  • Figure 8 is a short side of Figure 5
  • the board is cut along line BB Cutaway view.
  • Locking mechanism mounting holes 2C and 2D are provided on the short side plates.
  • the locking tongues 51 and 52 of the locking mechanism 5 can pass through the mounting holes 2C and 2D, respectively, into the adjacent long side plates, thereby locking the long side plates and the short side plates to each other. As shown in FIGS.
  • the upper edge of the short side plate 2 is provided with a cavity 21 formed along the longitudinal direction of the side plate, and the lower edge is provided with a cavity 22 formed along the longitudinal direction of the side plate, and the left end portion is provided along the edge.
  • the cavity 23 is formed in the height direction of the side plate, and the right end portion is provided with a cavity 24 formed along the height direction of the side plate.
  • the cavities of the upper edge, the lower edge, the left end portion and the right end portion of the short side panel 2 are formed by gas-assisted injection molding.
  • the cavities 21, 22, 23, 24 have a rectangular cross section.
  • a concave portion 25 extending in the height direction is provided on the outer side surface of the short side panel 2 adjacent to the left end of the short side panel 2, and the height is provided on the outer side surface of the short side panel 2 adjacent to the right end of the short side panel 2 a direction extending recess 26, when the plurality of folding boxes 100 are stacked together, the recesses 25, 26 on the adjacent short side plates 2 of the adjacent folding boxes form a cavity along the height direction of the side plates, the pair of cavities
  • the base of the upper folding box constitutes a support, thereby preventing the base of the upper folding box from being recessed downward, which will be described in detail below.
  • the left and right end cavities 23, 24 on the short side plate 2 are respectively disposed on the connecting portions 23A and 24A of the short side plate 2, and the concave portions 25, 26 are respectively adjacent to the left and right sides of the short side plate 2, respectively.
  • the connecting portions 23A and 24A at both ends are provided, wherein the connecting portion 23A and the connecting portion 24A are for connection with the adjacent long side plates.
  • the engaging portions 23A and 24A are provided with engaging structures 23A1 and 24A1, respectively.
  • the occlusal structure of the short side plates is used for engaging the occlusal structure corresponding to the long side plates, thereby connecting the short side plates with the adjacent long side plates.
  • the short side panel 2 is provided with recesses only at the left and right ends, it will be understood by those skilled in the art that one or more recesses may be further provided between the recesses 25, 26.
  • the height of the recesses 25, 26 is 0.1-0.9 times the height of the side panel 2
  • the depth of the recesses 25, 26 in the thickness direction of the short side panel 2 is 0.1- of the thickness of the side panel 2. 0.9 times.
  • a plurality of vent holes 28 are further provided on the short side plate 2, and the vent holes 28 are distributed in the cavity 23, 24 formed in the longitudinal direction of the side plate and the cavity 25 formed in the height direction, 26 enclosed area.
  • the top surface of the short side plate 2 is provided with a positioning protrusion 27, and the lower bottom surface of the base is provided with a groove 11 which cooperates with the protrusion 27, and when the plurality of folding boxes are stacked, the lower bottom surface of the base of the upper folding box is concave
  • the slots are snapped into the positioning projections 27 of the top surface of the side panel of the next folding box, thereby positioning the upper and lower folding boxes with each other, as will be described in detail below.
  • Figure 9 is a perspective view of the long side plate of the embodiment, a front view of the long side plate of Figure 10, Figure 11 is a cross-sectional view of the long side plate of Figure 10 taken along line CC, and Figure 12 is a long side of Figure 10.
  • the upper edge of the long side plate 3 is provided along the side plate.
  • the cavity 31 is formed in the longitudinal direction, and the lower edge is provided with a cavity 32 formed along the longitudinal direction of the side plate, the left end portion is provided with a cavity 33 formed in the height direction, and the right end portion is provided with a cavity 34 formed in the height direction. .
  • the cavities of the upper edge, the lower edge, the left end portion and the right end portion of the long side plate 2 are formed by gas-assisted injection molding, and as a preferred mode, the sections of the cavities 31, 32, 33, 34 are rectangle.
  • a concave portion 35 extending in the height direction is provided at a position adjacent to the left end on the outer side surface of the long side plate 3, and a concave portion extending in the height direction is provided at a position on the outer side surface of the long side plate 3 adjacent to the right end. 36.
  • the left and right end cavities 23, 24 on the long side plate 3 are respectively disposed in the connecting portions 33A and 34A of the long side plate 3, and the concave portions 35, 36 are adjacent to the left and right sides of the long side plate 2, respectively.
  • the connecting portions 33A and 34A at both ends are provided.
  • the engaging portions 33A and 34A are provided with engaging structures 33A1 and 34A1, respectively.
  • the engaging structures 33A1 and 34A1 of the long side plates are used for engaging the engaging structures 23A1 and 24A1 corresponding to the short side plates, thereby connecting the short side plates with the adjacent long side plates.
  • recesses 37, 38 are provided between the recesses 35, 36 on the long side plate 3.
  • the recesses 35, 36, 37, 38 are evenly spaced.
  • the connecting portion 33A and the connecting portion 34A are used to connect with adjacent short side plates.
  • two recesses are provided between the recesses 35, 36 of the long side panel 3 in this example, it will be understood by those skilled in the art that one or more recesses may be further disposed between the recesses 35, 36.
  • the height of the recesses 35, 46 ranges from 0.1 to 0.9 times the height of the side panel 2
  • the depth of the recesses 35, 36 in the thickness direction of the short side panel 2 ranges from 0.1 to the thickness of the side panel 2. 0.9 times.
  • vent holes 30 are further provided in the long side plate 3, and the vent holes 30 are distributed in the cavity 31, 32 formed in the longitudinal direction of the long side plate and the cavity 33 formed in the height direction.
  • a plurality of vent holes 30 are also provided in the recesses 35, 36, 37, 38.
  • the outer peripheral edges of the outer and outer sides are hollow reinforcing side plates, and the four gas-assisted cavities of the outer edge are rectangular, and the mutual connection strengthens the side.
  • the compressive and bending resistance of the multi-layer stacking of the plates reinforces the ability of the side plates to resist deformation due to the extrusion of the goods (upper and lower edge gas-assisted cavities) and the side plates
  • the inside and the outside are smooth and easy to clean.
  • a reinforcing material or a filling filler may be further provided in the cavities 21, 22, 23 and 24 to enhance the strength of the side panels.
  • Figure 13 is another perspective view of the folding box of the present invention with the side panels in an upright position.
  • the side plates themselves are reinforced by a rectangular skeleton, which increases the resistance to twisting and deformation.
  • the flat base When the base carries heavy goods, the flat base generally sinks downward.
  • the long side of the base protrudes from the upper part and is inclined toward the inner side of the base, and the side of the base is displaced relative to the middle, and the base and the side plate are hinged by the hinge, the base is displaced inward, and the lower edge of the side plate is correspondingly received.
  • the base is pulled and the middle part of the side plate is deformed and bent into the box body. Therefore, the lower end of the side plate formed by the gas-assisted process has a rectangular cross section, and the bending resistance is more obvious than that of the thin wall plate.
  • FIG. 14-16 show a form in which the folding box of the present invention is easily deformed when stacked.
  • the retaining edge 10 on the base 1 is provided with a cavity 11 formed along the length of the base retaining edge 10.
  • 14 is a cross-sectional view of the folding box before being pressed
  • FIG. 15 is a cross-sectional view before the base 1 is undeformed
  • FIG. 16 is a cross-sectional view of the base 1 after being deformed.
  • the bottom of the upper folding box base is pressed, the bottom of the folding box is sunken, and the base retaining edge is close to the middle of the side plate (the angle between the retaining edge and the base is reduced).
  • the depression of the base brings the safety hazard of the collision of the upper and lower layers of goods.
  • FIGS. 17-19 are views showing a state of stress of each side plate of the folding box of the present invention, wherein FIG. 17 is a plan view, FIG. 18 is a cross-sectional view, and FIG. 19 is another cross-sectional view, as shown in FIGS. 17-19, due to the present invention.
  • the folding box is provided with a gas-assisted cavity in the retaining edge of the base. Therefore, when the multi-layer stacking, the upper folding box base is pressed, and when the base is depressed and the retaining edge is close to the middle, the gas-assisted cavity is provided. Relative to the back support of the retaining edge, thereby preventing the inner side of the seat retaining edge.
  • FIG. 3 is an enlarged view of a portion A of Figure 2
  • Figure 4 is an enlarged view of a portion B of Figure 2.
  • Both the pair of long side plates 3 and the pair of short side plates 2 of the folding box 100 of the present invention are connected to the base 1 by a hinge 4.
  • the case of the short side plate is the same as that of the long side plate. Therefore, only the long side plate is taken as an example for description.
  • the lower side of the lower side of the long side plate 3 is provided with a hinge base 40.
  • the hinge base 40 is provided with hinge shafts 41 at both ends thereof, and the bottom of the hinge base 40 is provided with a hanging platform 42.
  • the base 1 is provided with a hinge groove 11 , and both ends of the hinge groove 11 are provided with a hinge shaft mounting groove 12 for accommodating the hinge shaft, and a first limiting boss 13 is provided at the inner side wall of the hinge groove 11 at the hinge groove 11
  • a second limiting boss 14 is disposed at a position near the middle of the two ends, and the hanging platform 42 on the hinge seat 40 cooperates with the first limiting boss 13 , and the hinge shaft 41 cooperates with the second limiting boss 14 , specifically,
  • a third limiting boss 411 is disposed at an end of the hinge shaft 41, and a contour surface of the third limiting boss 411 is engaged with the second limiting boss 14.
  • the hinge shaft 41 When the long side plate 3 is in the folded state, the hinge shaft 41 is assembled downward along the hinge groove 11, the first limiting boss 13 is deformed outward, and after the hinge shaft 41 is mounted in position, the first limiting boss 13 is reset and buckled. Hanging The stage 42 is detached from the base 1 by restricting the long side plate 3. When the long side panel 3 is erected, the side surface of the hinge shaft 41 comes into contact with the second stopper boss 14, thereby restricting the upward movement of the long side panel 3.
  • the hinge shaft 41 of the hinge 4 of the present invention is formed by directly processing at both ends of the hinge seat, and has a larger diameter than a general hinge, and has excellent mechanical properties, and is provided on the long side plate and short.
  • the reinforcing structure on the side panels such as the cavity and the ribs in the above embodiment, is used in combination, it is possible to further prevent the base retaining edge from being deformed inwardly. Therefore, the base of the box is not easily recessed inward, and further deformation of the side plate caused by the inner rim of the base guard is solved.
  • the cabinet can be reused many times, extending the life of the cabinet.
  • FIG. 20 shows a state in which a plurality of folding boxes 100 are stacked in two layers, wherein the solid line indicates the folding box of the upper layer, and the folding box of the next layer indicated by the broken line.
  • the ratio of length to width of the folding box 100 of the present invention is set equal to 3:2, so as shown in Fig. 20, when the folding box of the next layer is placed laterally three, the vertical discharge on the right side
  • a rectangle can be formed, as shown by the dotted line in Fig. 20.
  • the folding box of the upper layer and the folding box of the next layer are arranged in the reverse order, that is, two are vertically discharged on the left side and three are placed laterally on the right side, so that A rectangle having the same rule as the lower rectangle is formed.
  • Fig. 21 is a cross-sectional view showing the lower folding box of Fig. 20 (i.e., the folding box shown by a broken line), Fig. 22 is an enlarged view of a portion A in Fig. 21, and Fig. 23 is an enlarged view of a portion B in Fig. 21.
  • the recesses on the long side plates of the adjacent two folding boxes cooperate to form a cavity in the height direction of the side plates.
  • the recess 38 on the long side panel 3 of one of the folding boxes cooperates with the corresponding recess 38 on the long side panel 3 of the other folding box to form a cavity 380 in the height direction of the side panel.
  • the cavity 380 along the height direction of the side plate forms a strong support for the base of the upper folding box, thereby preventing the upper layer.
  • the base of the folding box is recessed downward.
  • Figure 24 is a cross-sectional view of the folding box of Figure 20
  • Figure 25 is an enlarged view of a portion C of Figure 24
  • Figure 26 is an enlarged view of a portion D of Figure 24.
  • FIG. 27-28 show the state in which the two folding boxes in the folded state are stacked together
  • FIG. 29 is a cross-sectional view of the folding box of FIG. 27, as shown in FIGS. 27-29, the second is provided on the base 1 of the folding box.
  • the protrusion 12 when stacked on the two folding boxes in the folded state, the protrusions 12 on the side plates of the lower folding box are caught in the grooves 11 on the base of the upper folding box, Thereby, the upper and lower folding boxes can be positioned with each other so as not to easily slide each other.
  • the folding box by providing the groove 11 on the base of the folding box and the second protrusion 12 cooperating with the groove 11, and the protrusions 27, 37 which are engaged with the groove 11 respectively on the long and short side plates of the folding box, Whether the folding box is in the unfolded state or in the folded state, the mutual positioning and fixing of the upper and lower folding boxes can be realized, so that the upper and lower folding boxes can be movably fixed together.
  • Figure 30 is a schematic view showing the cooperation of the protrusions on the side plates of the lower folding box and the pits on the base of the upper folding box when the two-layer folding boxes are stacked together.
  • the bottom surface of the base 1 of the folding box is provided with four rows of grooves 11 arranged equidistantly along the width direction of the base, so that when the multi-layer folding boxes are stacked together, the side plates of the lower folding box The upper bulge just snaps into the recess 11 in the base 1 of the upper folding box, thereby fixing the folding boxes of the upper and lower layers to each other.
  • FIG. 31 is a perspective view of a long side plate according to another embodiment of the present invention
  • FIG. 32 is a front view of the long side plate of FIG.
  • FIG. 33 is a cross-sectional view taken along line AA of FIG. 32
  • the present invention differs from the previous embodiment in that, in the present embodiment, the upper and lower edges of the long side plate 3A are provided with cavities 31A, 32A extending along the longitudinal direction of the side plates, A cavity (not shown) extending in the height direction of the side plate is provided at the left end portion and the right end portion of the long side plate 31A, and the cavity 31A of the upper edge of the long side plate 3A and the cavity fluid of the left end portion and the right end portion are fluid.
  • the cavity 32A of the lower edge of the long side plate 3A is spaced apart from the cavity of the left end portion and the right end portion.
  • the cavity 32A of the lower edge of the long side plate 3A and the cavity of the left end portion and the right end portion are spaced apart at the corner 30A of the long side plate 3A.
  • the cavity 32A of the lower edge of the long side plate 3A and the cavity of the left end portion and the right end portion are spaced apart at the corner 30A of the long side plate 3A.
  • FIG. 35 is a perspective view of a long side plate according to another embodiment of the present invention
  • FIG. 36 is a front view of the long side plate of FIG. 35
  • FIG. 37 is a cross-sectional view taken along line AA of FIG. 35
  • the present invention is different from the previous embodiment in that, in the present embodiment, the upper and lower edges of the long side plate 3B are provided with cavities 31B, 32B extending in the longitudinal direction of the side plates.
  • a cavity (not shown) extending in the height direction of the side plate and a cavity 31B at the upper edge of the long side plate 3B are provided at the left end portion and the right end portion of the long side plate 3B.
  • the cavity 32B of the lower edge of the long side plate 3B is in fluid communication with the cavity of the left and right ends, however, as shown in Figure 37, in this embodiment,
  • the left and right end cavities of the side panels 3B are spaced apart in the middle of the long side panels 3B, i.e., in the present embodiment, the left and right end cavities of the long side panels 3B include upper cavities spaced apart from each other and The lower cavity, the upper cavity and the lower cavity are spaced apart in the middle of the long side plate 3B.
  • the upper and lower cavities of the left and right end portions of the long side plate are spaced apart in the middle of the long side plate 3B, however, those skilled in the art will understand that the left and right end portions of the long side plate are The upper and lower cavities may also be spaced apart at other positions of the long side plates 3B, such as at a height of 1/4 of the long side plates 3B, at a height of 3/4 of the long side plates 3B, and the like. In the place not described in detail in the embodiment, please refer to the related description of the foregoing embodiment.
  • the lower edge of the side plate is provided with a cavity extending along the longitudinal direction of the side plate, so that when the side plates are in an upright state, the lower edge of the side plate provided with the cavity and the lower edge of the side plate not provided with the cavity Interconnecting forms a frame that is hinged to the base by a hinge (ie, the lower edge of each side panel is formed by a hinge hinge to the base) to form a reinforcing member that resists the depression of the base and the recess of the retaining edge.
  • the side panel of the folding box of the present invention has a double-gloss side panel, the problem of dirt residue after cleaning during repeated use of the folding box can be minimized, the cleaning efficiency is improved, and the base of the box is improved after being loaded.
  • Sinking when solving the multi-layer stacking of folding boxes, the problem of collision between objects in the upper and lower layers due to the depression of the base, and also solving the problem that the box has a small wall thickness and a high folding rate at the same time After the stack of the cabinets is piled up and the side panels are pressed, the storage failure of the stacks due to the deformation of the side panels causes a safety hazard.

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  • Rigid Containers With Two Or More Constituent Elements (AREA)
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Abstract

一种折叠箱，包括底座（1）和两对相对的侧板，底座（1）的外周设有护边（10），侧板铰接至底座并可相对于底座（1）折叠，侧板为双光面侧板且至少一对侧板下缘设有空腔。折叠箱（100）直立时，一对侧板下缘与另一对侧板下缘通过相互连接形成框架，且该框架通过铰链铰接至底座（1），从而形成抵抗底座下陷及护边内凹的强化构件。该折叠箱提升了清洁效率，改善箱体负载后底座下陷，解决折叠箱多层堆垛时，上下层货物间由于底座受压下陷而产生物品间相互碰撞受损的问题，同时还解决了箱体在较小壁厚，较高折叠率同时，多层箱体堆垛而侧板受压后，因侧板形变导致堆叠失效的仓储存放安全隐患。

Description

折叠箱 技术领域
本发明涉及容器，具体涉及一种折叠箱。
背景技术
现有折叠箱有固定的侧板厚度及高度，在使用时，侧板要相对展开直立，四块侧板互锁，从而形成相对封闭的空间来容纳货物，而在货物清空后，箱体需要被回收，为了更大化节约成本，将箱体侧板进行折叠，而使得在同等的空间内能容纳更多的箱体回收，且回收过程中要便于清洁，特别是当折叠箱用来装载蔬果生鲜等食品时，使用后清洁尤为重要，且同时箱体要在使用中既要保证在其装载的货物时安全可靠，又要在箱内货物清空时侧板要简单快捷的解锁并折叠，而现有的折叠箱专利例如US20090101640A1，箱体侧板主体结构由薄壁以及在其表面加强筋的布置组成，这种侧板结构其一，网格筋其凹陷部位在快速清洗时易于残留污物，效率低。其二，这种单薄壁结构在抗弯抗压形式上能力单一，尤其是在侧板与底座铰接部位，由单一薄壁衔接侧板主体与铰链，尤其是在箱体承载密度较大的货物时，底座内表面受压而向下凹陷，此时的侧板因其铰链与底座护边铰接，护边会随着底座内凹陷而向内趴，侧板靠近铰链一侧也随机受护边的牵引而向内侧形变弯曲。
由此，在底座护边在限定高度情况下，侧板，尤其是靠近铰链下缘，对其底座内凹陷以及护边向内形变有支撑和矫正作用，由此，现有发明专利，侧板近铰链部位，由单一薄壁，在其承载加大时，不能对抗底座护边向内趴的形变，而使得箱体底座内凹陷，引起底座护边内趴而进一步导致侧板内变形，当侧板不能辅助和改善底座内凹陷时，在使用其多层箱体堆垛时，上层的货物则会与底座薄壁变形下沉与在其下面的箱体内货物受压，在一定程度上对货物存在安全隐患，尤其是箱体承载饮料，牛奶瓶等易碎的载体时，因受箱体底座变形就更容易在运输或使用中出现上下层磕碰损坏的情况产生，且箱体重复使用时，箱体的频繁的高低温环境中使用受力变形大而易导致疲劳损伤，减短了箱体的使用寿命。
发明内容
本发明的目的是提供一种折叠箱，以解决上述现有技术中存在的问题。
为了解决上述问题，根据本发明的一个方面，提供了一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述底座的外周设有护边，所述侧板铰接至所述底座并可相对于所述底座折叠，所述侧板为双光面侧板，以及至少一对所述侧板下缘设置有空腔，且所述折叠箱直立时，所述两对相对的侧板中的一对侧板下缘与另一对侧板下缘通过相互连接形成框架，且所述框架通过铰链铰接至所述底座，从而形成抵抗所述底座下陷及所述护边内凹的强化构件。
较佳地，所述侧板的设置有所述空腔的部位与相邻部位齐平。
较佳地，所述侧板的外侧面设有沿所述侧板的高度方向延伸的至少一个凹部，其中所述凹部的形状设置成当相邻的两个折叠箱相互靠近时形成沿侧板高度方向的腔体。
较佳地，所述空腔形成于所述侧板的厚度内。
较佳地，所述空腔沿所述侧板的长度方向延伸预定长度，所述预定长度的长度范围为所述侧板长度的0.8-1倍。
较佳地，两个所述凹部分别临近所述侧板的左右两端的连接部设置，且所述两个凹部之间设有至少另一个所述凹部。
较佳地，所述凹部沿侧板厚度方向的深度范围为所述侧板厚度的0.1-0.9倍。
较佳地，所述凹部的高度范围为所述侧板高度的0.1-0.9倍。
较佳地，所述侧板内还设有沿至少一个所述侧板的高度方向延伸的空腔。
较佳地，所述侧板内还设有沿高度方向延伸的相互间隔开的多个空腔。
较佳地，所述侧板内还设有沿该侧板的长度方向延伸的相互间隔开的多个空腔。
较佳地，所述侧板的上缘设有沿所述侧板的长度方向延伸的空腔，以及所述侧板的左端部或右端部设有沿所述侧板的高度方向延伸的空腔。
较佳地，所述侧板上缘和下缘形成的空腔与所述侧板左端部形成的空腔构成“C”字形结构，和/或所述侧板上缘和下缘形成的空腔与所述侧板右端部形成的空腔构成反“C”字形结构。
较佳地，所述侧板的上缘设有沿该侧板的长度方向延伸的空腔，在所述侧板的左端部和右端部设有沿该侧板的高度方向延伸的空腔，其中，所述侧板的 上缘形成的空腔与所述侧板的左端部和右端部形成的空腔流体连通，以及所述侧板的下缘形成的空腔与所述侧板的左端部和右端部形成的空腔间相互间隔开。
所述侧板的下缘形成的空腔与所述侧板的左端部和右端部形成的空腔分别在所述侧板的左下转角和右下转角相互间隔开。
较佳地，在所述侧板的上缘设有沿该侧板的长度方向延伸的空腔，在所述侧板的左端部和右端部设有沿该侧板的高度方向延伸的空腔，且所述侧板的左端部和右端部的空腔均包括沿该侧板的高度方向间隔开的上空腔和下空腔。
较佳地，所述侧板设有多个气孔，所述多个气孔分布在所述侧板的沿长度方向形成的空腔与沿高度方向形成的空腔封围的区域内。
较佳地，所述空腔为气辅成型空腔。
根据本发明的另一方面，提供了一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，所述侧板为双光面侧板，至少一个所述侧板内设有沿所述侧板延伸预定长度的空腔，且所述侧板的外侧面设有沿所述侧板的高度方向延伸的至少一个凹部，其中所述凹部的形状设置成当相邻的两个折叠箱相互靠近时形成沿侧板高度方向的腔体。
较佳地，两个所述凹部分别临近所述侧板的左右两端的连接部设置，且所述两个凹部之间设有至少另一个所述凹部。
较佳地，所述侧板的外侧面设有沿所述侧板的高度方向延伸的至少一个凹部，其中所述凹部的形状设置成当相邻的两个折叠箱相互靠近时形成沿侧板高度方向的腔体。
较佳地，所述预定长度的长度范围为所述侧板长度的0.8-1倍。
较佳地，所述空腔形成于所述侧板的厚度内。
较佳地，所述凹部沿侧板厚度方向的深度范围为所述侧板厚度的0.1-0.9倍。
较佳地，所述凹部沿侧板高度方向的长度范围为所述侧板高度的0.1-0.9倍。
较佳地，所述空腔沿至少一个所述侧板的高度方向延伸。
较佳地，所述侧板内设有沿高度方向延伸的相互间隔开的多个空腔。
较佳地，所述空腔沿所述至少一个侧板的长度方向延伸。
较佳地，所述侧板内设有沿该侧板的长度方向延伸的相互间隔开的多个空腔。
较佳地，所述侧板设有多个气孔，所述多个气孔分布在所述侧板的沿长度方向形成的空腔与沿高度方向形成的空腔封围的区域内。
较佳地，所述空腔为气辅成型空腔。
根据本发明的再一方面，提供了一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板为双光面侧板，至少一个所述侧板内设有沿所述侧板延伸预定长度的空腔，以及所述侧板的顶面设有凸起，所述底座的下底面设有与所述凸起配合的凹槽，当多个折叠箱堆垛时，上一个折叠箱的底座的下底面的凹槽卡入下一个折叠箱的对应侧板顶面的所述定位凸起。
较佳地，每一个所述侧板的顶面设有至少两个所述凸起。
较佳地，所述预定长度的长度范围为所述侧板长度的0.8-1倍。
较佳地，所述侧板的外侧面设有沿高度方向延伸的凹部。
较佳地，所述凹部沿侧板厚度方向的深度范围为所述侧板厚度的0.1-0.9倍。
较佳地，所述凹部的高度范围为所述侧板高度的0.1-0.9倍。
较佳地，所述空腔沿至少一个所述侧板的高度方向延伸。
较佳地，所述侧板内设有沿高度方向延伸的相互间隔开的多个空腔。
较佳地，所述空腔沿所述至少一个侧板的长度方向延伸。
较佳地，所述侧板内设有沿该侧板的长度方向延伸的相互间隔开的多个空腔。
较佳地，所述侧板设有多个气孔，所述多个气孔分布在所述侧板的沿长度方向形成的空腔与沿高度方向形成的空腔封围的区域内。
较佳地，所述空腔为气辅成型空腔。
根据本发明的另一方面，提供了一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，所述侧板为双光面侧板，以及至少一对所述侧板的下缘内部形成有沿所述侧板的长度方向延伸预定长度的空腔，且形成有所述空腔的下缘与另一对相对的侧板的下缘相互连接而形成框架。
较佳地，两个所述空腔分别沿所述侧板的高度方向延伸并分别设置于所述侧板的左右两端的连接部内。
较佳地，所述空腔沿高度方向从所述侧板的上缘延伸到所述侧板的下缘， 或从所述侧板的上缘向下延伸预定长度，或从所述侧板的下缘向上延伸预定长度。
较佳地，每一个所述侧板的上缘和/或下缘设有沿该侧板的长度方向延伸的空腔，从而当所述两对相对侧板处于直立状态时，所述两对相对的侧板的所述上缘的空腔形成矩形框架，和/或所述两对相对的侧板的所述下缘的空腔形成矩形框架。
较佳地，所述折叠箱的长与宽之比等于3:2，且所述底座的底面设有沿该底座的宽度方向布置的多排凹槽。
较佳地，所述底座的下底面在1/3所述底座的长度和2/3所述底座的长度处布置有多个凹槽。
较佳地，所述空腔沿所述侧板的长度方向延伸并设置于所述侧板的上缘和/或下缘内。
较佳地，所述空腔的至少一部分在所述侧板的上缘沿该侧板的长度方向延伸，所述空腔的至少另一部分在所述侧板的左右两端的连接部内沿该侧板的高度方向延伸，以及所述空腔的至少另一部分在所述侧板的下缘内沿该侧板的长度方向延伸。
较佳地，所述空腔的至少一部分在所述侧板的上缘沿该侧板的长度方向从左端延伸至右端，所述空腔的至少另一部分在所述侧板的左右两端的连接部内沿该侧板的高度方向从下缘延伸至上缘，以及所述空腔的至少还一部分在在所述侧板的下缘内沿该侧板的长度方向从左端延伸至右端。
较佳地，沿所述侧板的长度方向延伸的空腔与沿所述侧板的高度方向延伸的空腔相互间隔开。
较佳地，所述侧板的下缘设有多个相互间隔开的沿所述侧板的长度方向延伸的空腔。
较佳地，所述侧板的下缘的下侧设有铰链座，所述铰链座的两端设有铰链轴，以及所述铰链座的中部设有挂台，所述底座上设有铰链槽，所述铰链槽内设有第一限位凸台和第二限位凸台，其中所述挂台与所述第一限位凸台配合，所述铰链轴与所述第二限位凸台配合。
较佳地，所述铰链轴的端部设有第三限位凸台，该第三限位凸台的轮廓面与所述第二限位凸台配合。
较佳地，所述侧板通过铰链铰接至所述底座，所述两对相对的侧板的下缘设有加强结构，以及所述加强结构设置于所述铰链的上方。
较佳地，所述侧板的下缘的下侧设有铰链座，所述铰链座的两端设有铰链轴，以及所述底座设有护边，所述护边上设有与所述铰链座配合的铰链槽，其中，所述护边还设有沿该护边的长度方向形成的空腔。本发明的折叠箱最大程度改善侧板抗弯以辅助和对抗底座护边形变，从而能够解决箱体底座由于受压而向内凹陷的货物间的挤压受损问题。
本发明的折叠箱能最大程度减少折叠箱重复使用过程中清洁后的污物残留提升了清洁效率，改善箱体负载后底座的下陷，解决折叠箱多层堆垛时，上下层货物间由于底座受压下陷而产生物品间相互碰撞受损的问题，同时还解决了箱体在较小壁厚，较高折叠率同时，多层箱体堆垛而侧板受压后，因侧板形变导致堆叠失效的仓储存放安全隐患。
附图说明
图1是本发明折叠箱的立体图，其中侧板处于直立状态；
图2是本发明折叠箱的另一立体图，其中部分侧板处于折叠状态；
图3是图2的A部分的放大图；
图4是图2的B部分的放大图；
图5是本发明一实施例的短侧板的立体图；
图6是图5的短侧板的主视图；
图7是图5中短侧板沿线A-A剖开的剖视图；
图8是图5中短侧板沿线B-B剖开的剖视图；
图9是本发明一实施例的长侧板的立体图；
图10图9的长侧板的主视图；
图11是图10中长侧板沿线C-C剖开的剖视图；
图12是图10中长侧板沿线D-D剖开的剖视图；
图13是本发明折叠箱的另一立体图，其中侧板处于直立状态；
图14-16示出本发明折叠箱受压时的状态，其中，图14示出折叠箱受压时的剖视图，图15示出变形前的底座，图16示出变形后的底座；
图17-19示出本发明的折叠箱的各侧板的受力状态，其中，图17是俯视图， 图18是剖视图，图19是另一剖视图；
图20示出多个折叠箱堆垛成两层的状态，其中虚线示出下层折叠箱，实线示出上层折叠箱；
图21示出图20的下层折叠箱的剖视图；
图22是图21中的A部分的放大图；
图23是图21中的B部分的放大图；
图24示出图20的折叠箱的剖视图；
图25是图24中的C部分的放大图；
图26是图24中的D部分的放大图；
图27-28示出处于折叠状态的两个折叠箱堆垛在一起时的状态；
图29是图27的折叠箱的剖视图；
图30示出两层折叠箱堆垛在一起时下层折叠箱的侧板上的凸起与上层折叠箱的底座上的凹坑配合状态示意图；
图31是本发明另一实施例的长侧板的立体图；
图32是图31的长侧板的主视图；
图33是图32中沿线A-A剖开的剖视图；以及
图34是图32中沿线B-B剖开的剖视图。
具体实施方式
以下将结合附图对本发明的较佳实施例进行详细说明，以便更清楚理解本发明的目的、特点和优点。应理解的是，附图所示的实施例并不是对本发明范围的限制，而只是为了说明本发明技术方案的实质精神。
术语说明
在本发明中，双光面侧板是相对于传统的侧板表面上布置有加强凸筋的侧板来说的，本申请的双光面侧板的外表面不具有加强凸筋或者双光面侧板的外表面仅布置有非常少量的凸筋。
侧板的上缘，指的是从侧板顶面向下延伸的一部分。
侧板的下缘，指的是从侧板底面向上延伸的一部分。
基于现有的不足，本发明提供了一种可折叠易于清洁的折叠箱，通过气辅成型的长短侧板，其侧板本身呈矩形状骨架加强，增加了抗扭曲及形变能力， 当底座承载货物较重时扁平状的底座一般会向下凹陷，此时，底座长侧边突出较高一部分则会向底座内侧倾斜，同时底座侧边相对向中部位移，而底座与侧板通过铰链铰接，底座向内位移，侧板下缘部也会相应的受到底座牵引而使其侧板中部向箱体内测形变弯曲，因此，气辅工艺成型的侧板不但在整体四周有衔接的中空骨架支撑，且在侧板铰接底座的下缘，设置铰链的部位，截面呈矩形，其抗弯能力要比薄壁板或薄壁上设置加强筋的效果更优越，能最大程度通过改善侧板抗弯以辅助和对抗底座护边形变，从而解决箱体底座受压后内凹陷货物间挤压受损的问题。
本发明的折叠箱通常包括底座和两对相对的侧板，侧板铰接至底座并可相对于底座折叠。本发明的折叠箱的侧板为双光面侧板，以及至少一个侧板内设有沿侧板延伸预定长度的空腔，且该空腔形成于侧板的厚度内，从而所述侧板的设置有所述空腔的部位与相邻部位齐平。即，该空腔的位于侧板的内、外侧面之间，从而从外观上，不会因为设置空腔而使得侧板的设置空腔的部位突出侧板的内侧面和外侧面。这里，上述相邻部位指的是侧板上与设置空腔的部位相邻且没有设置空腔的部位。该预定长度的长度范围为所述侧板长度的0.8-1倍或所述侧板高度的0.8-1倍。
在本发明的一实施例中，折叠箱的至少一对侧板下缘设置有空腔，在折叠箱直立时，两对相对的侧板中的一对侧板下缘与另一对侧板下缘通过相互连接形成框架，且该框架通过铰链铰接至底座，从而形成抵抗底座下陷及护边内凹的强化构件。由于形成该框架的至少一对下缘内设有空腔，因此，该框架的整体强度大大加强，从而形成抵抗底座下限及护边内凹的强化构件。
图1是本发明折叠箱的立体图，其中侧板处于直立状态；图2是本发明折叠箱的另一立体图，其中部分侧板处于折叠状态。如图1-2所示，折叠箱100包括底座1，一对短侧板2、2和一对长侧板3、3，其中，底座1上设有护边10。短侧板2和长侧板3分别铰接至底座1并可相对于底座1折叠。其中，长侧板3和短侧板2均为双光面侧板。相邻的长侧板和短侧板通过锁定机构可释放地相互锁定以及至少一个侧板内设有沿侧板延伸预定长度的空腔。较佳地，长短侧板由诸如高强度塑料等高强度材料制成。
图5是本实施例的短侧板的立体图；图6是图5的短侧板的主视图；图7是图5中短侧板沿线A-A剖开的剖视图；图8是图5中短侧板沿线B-B剖开的 剖视图。短侧板上设有锁定机构安装孔2C和2D。锁定机构5的锁舌51和52可分别穿过安装孔2C和2D进入相邻的长侧板，从而将长侧板和短侧板相互锁定。如图5-8所示，短侧板2的上缘设有沿侧板的长度方向形成的空腔21，下缘设有沿侧板的长度方向形成的空腔22，左端部设有沿侧板的高度方向形成的空腔23，右端部设有沿侧板的高度方向形成的空腔24。作为一种优选方式，短侧板2的上缘、下缘、左端部和右端部的空腔通过气辅注塑成型。以及作为一种优选方式，空腔21、22、23、24的截面为矩形。
如图5所示，在短侧板2的外侧面上邻近短侧板2左端设有沿高度方向延伸的凹部25，在短侧板2的外侧面上邻近短侧板2右端设有沿高度方向延伸的凹部26，当多个折叠箱100堆垛在一起时，相邻的折叠箱的相邻短侧板2上的凹部25、26形成沿侧板高度方向的腔体，该腔体对上一层折叠箱的底座构成支撑，从而防止上一层折叠箱的底座向下凹陷，有关这方面下文还会详细描述。
作为一种优选方式，短侧板2上的左、右两端的空腔23、24分别设置在短侧板2的连接部23A和24A上，以及凹部25、26分别临近短侧板2的左右两端的连接部23A和24A设置，其中，连接部23A和连接部24A用于与相邻的长侧板进行连接。连接部23A和24A上分别设有咬合结构23A1和24A1。短侧板的咬合结构用于与长侧板对应的咬合结构咬合，从而使短侧板与相邻的长侧板进行连接。虽然在本实施例中，短侧板2只在左、右两端设置凹部，然而，本领域的技术人员可以理解，在凹部25、26之间也可再设置一个或多个凹部。作为一种优选方式，凹部25、26的高度范围为侧板2的高度的0.1-0.9倍，以及凹部25、26沿短侧板2的厚度方向的深度范围为侧板2的厚度的0.1-0.9倍。
如图5所示，在短侧板2上还设有多个通气孔28，且通气孔28分布在侧板的沿长度方向形成的空腔23、24与沿高度方向形成的空腔25、26封围的区域内。短侧板2的顶面设有定位凸起27，底座的下底面设有与凸起27配合的凹槽11，当多个折叠箱堆垛时，上一个折叠箱的底座的下底面的凹槽卡入下一个折叠箱的侧板顶面的定位凸起27内，从而将上、下层的折叠箱相互定位，下文还会详细描述。
图9是本实施例的长侧板的立体图，图10图9的长侧板的主视图，图11是图10中长侧板沿线C-C剖开的剖视图，以及图12是图10中长侧板沿线D-D剖开的剖视图。如图9-12所示，与短侧板2类似，长侧板3的上缘设有沿侧板 的长度方向形成的空腔31，下缘设有沿侧板的长度方向形成的空腔32，左端部设有沿高度方向形成的空腔33，右端部设有沿高度方向形成的空腔34。作为一种优选方式，长侧板2的上缘、下缘、左端部和右端部的空腔通过气辅注塑成型，以及作为一种优选方式，空腔31、32、33、34的截面为矩形。
如图9所示，在长侧板3的外侧面上邻近左端的位置设有沿高度方向延伸的凹部35，在长侧板3的外侧面上邻近右端的位置设有沿高度方向延伸的凹部36，当多个折叠箱100堆垛在一起时，相邻的折叠箱的相邻长侧板3上的凹部35、36形成沿侧板高度方向的腔体，该腔体对上一层折叠箱的底座构成支撑，从而防止上一层折叠箱的底座向下凹陷，下文还会详细描述。
作为一种优选方式，长侧板3上的左、右两端的空腔23、24分别设置在长侧板3的连接部33A和34A内，以及凹部35、36分别临近长侧板2的左右两端的连接部33A和34A设置。连接部33A和34A上分别设有咬合结构33A1和34A1。长侧板的咬合结构33A1和34A1用于与短侧板对应的咬合结构23A1和24A1咬合，从而使短侧板与相邻的长侧板进行连接。与短侧板2不同，在长侧板3上，在凹部35、36之间还设置有凹部37、38。较佳地，凹部35、36、37、38均匀间隔布置。其中，连接部33A和连接部34A用于与相邻的短侧板进行连接。虽然在本示例中，长侧板3的凹部35、36之间设置两个凹部，然而，本领域的技术人员可以理解，在凹部35、36之间也可再设置一个或多个凹部。
作为一种优选方式，凹部35、46的高度范围为侧板2的高度的0.1-0.9倍，以及凹部35、36沿短侧板2的厚度方向的深度范围为侧板2的厚度的0.1-0.9倍。
如图9所示，在长侧板3上还设有多个通气孔30，且通气孔30分布在长侧板的沿长度方向形成的空腔31、32与沿高度方向形成的空腔33、34封围的区域内，且在凹部35、36、37、38上也设有多个通气孔30。
在本实施例中，由于长、短侧板通过气辅工艺成型，使其四周外缘为中空的加强侧板，外缘的四根气辅空腔呈矩形状，且相互衔接既加强了侧板多层堆垛时的抗压抗弯能力(两侧竖向气辅空腔)，又强化了侧板因受货物挤压向外抗形变的能力(上下缘气辅空腔)且侧板内外侧光滑，易清洁。
作为本实施例的一种变形，在空腔21、22、23和24内可以进一步设置加强材料或填充填充物来增强侧板的强度。
图13是本发明折叠箱的另一立体图，其中侧板处于直立状态。如图13所示，通过气辅成型的长短侧板，其侧板本身呈矩形状骨架加强，增加了抗扭曲及形变能力，当底座承载货物较重时扁平状的底座一般会向下凹陷，此时，底座长侧边突出较高一部分则会向底座内侧倾斜，同时底座侧边相对向中部位移，而底座与侧板通过铰链铰接，底座向内位移，侧板下缘也会相应的受到底座牵引而使其侧板中部向箱体内测形变弯曲，因此，气辅工艺成型的侧板下端，截面呈矩形，其抗弯能力要比薄壁板上设置加强筋的效果更明显。
图14-16示出本发明的折叠箱在堆垛时底座容易变形的形式。其中底座1上的护边10设有空腔11，空腔11沿底座护边10的长度方向形成。其中，图14示出折叠箱受压时的剖视图，图15是底座1未变形前的剖视图，图16是底座1变形后的剖视图。如图14-16所示，当多层折叠箱堆垛时，其上层折叠箱底座受压后，其底部下陷，底座护边向侧板中部靠拢(护边相对底座夹角α减小)，其中底座下陷带来上下层货物碰撞的安全隐患。
图17-19示出本发明的折叠箱的各侧板的受力状态，其中，图17是俯视图，图18是剖视图，图19是另一剖视图，如图17-19所示，由于本发明的折叠箱在底座的护边内设置有气辅空腔，因此，当多层堆垛时，其上层折叠箱底座受压后，当底座下陷从而护边向中部靠拢时，气辅空腔提供相对于护边的反向支撑，从而防止座护边产生内趴现象。
现在回到图2-4，其中，图3是图2的A部分的放大图，图4是图2的B部分的放大图。本发明的折叠箱100的一对长侧板3和一对短侧板2都通过铰链4与底座1连接。短侧板的情况与长侧板的情况相同，因此，本文仅以长侧板为例进行说明。如图3-4所示，长侧板3的下缘的下侧设有铰链座40，铰链座40的两端设有铰链轴41，铰链座40的中部设有挂台42。底座1上设有铰链槽11，铰链槽11的两端设有容纳铰链轴的铰链轴安装槽12，以及在铰链槽11的内侧壁设有第一限位凸台13，在铰链槽11的两端靠近中部的位置设有第二限位凸台14，铰链座40上的挂台42与第一限位凸台13配合，铰链轴41与第二限位凸台14配合，具体地，在铰链轴41的端部设有第三限位凸台411，第三限位凸台411的轮廓面与第二限位凸台14配合。
在长侧板3处于折叠状态时，铰链轴41沿着铰链槽11向下装配，第一限位凸台13向外侧形变，铰链轴41安装到位后，第一限位凸台13复位并扣在挂 台42上以限制长侧板3从底座1上脱离。当长侧板3直立后，铰链轴41的侧面与第二限位凸台14接触，从而限制长侧板3向上移动。
与现有技术的普通铰链相比，本发明的铰链4的铰链轴41通过在铰链座的两端直接加工形成，其直径比一般铰链大，力学性能优良，当与设于长侧板和短侧板上的加强结构(诸如上述实施例中的空腔和加强筋)配合使用时，能够进一步防止底座护边向内趴形变。从而使得箱体底座不易向内凹陷，解决底座护边内趴导致的进一步侧板变形。箱体能够多次重复使用，延长了箱体的使用寿命。
图20-30示出多个本发明的折叠箱堆垛在一起时的状态。其中，图20示出多个折叠箱100堆垛成两层的状态，其中，实线表示的是上一层的折叠箱，虚线表示的下一层的折叠箱。根据一种优选实施方式，本发明的折叠箱100的长与宽之比设置成等于3:2，从而如图20所示，当下一层的折叠箱左边横向摆放3个，右边竖向排放两个时，恰好可以形成一个矩形，如图20中虚线所围成的图形。此时，如图20的实线所示，上一层的折叠箱与下一层的折叠箱的摆放顺序相反，即在左边竖向排放两个，右边横向摆放三个，从而也可以形成与下层矩形相同尺的矩形。
图21示出图20的下层折叠箱(即虚线所示的折叠箱)的剖视图，图22是图21中的A部分的放大图，图23是图21中的B部分的放大图。
如图21所示，当多个折叠箱100堆垛在一起时，相邻的两个折叠箱的长侧板上的凹部相互配合从而形成一个沿侧板高度方向的腔体。如图22所示，其中一个折叠箱的长侧板3上的凹部38与另一个折叠箱的长侧板3上对应凹部38相互配合形成沿侧板高度方向的腔体380。如图20所示，由于上一层折叠箱与下一层折叠箱错开布置，因此，沿侧板高度方向的腔体380对上一层折叠箱的底座形成有力的支撑，从而防止上一层折叠箱的底座向下凹陷。
图24是图20的折叠箱的剖视图，图25是图24中的C部分的放大图，图26是图24中的D部分的放大图。
如图24-26所示，当折叠箱100堆垛成两层时，下一层折叠箱的短侧板2上的凸起21与长侧板3上的凸起31分别卡入上一层折叠箱的底座上的对应凹槽11中，从而上下两层折叠箱能够实现有效定位，防止了上下两层折叠箱的相互滑动。
图27-28示出处于折叠状态的两个折叠箱堆垛在一起时的状态，图29是图27的折叠箱的剖视图，如图27-29，在折叠箱的底座1上设置有第二凸起12，当处于折叠状态的两个折叠箱上、下堆垛在一起时，下层折叠箱的侧板上的凸起12卡入到上一层折叠箱的底座上的凹槽11中，从而上、下层的折叠箱能够相互定位在一起，从而不容易相互滑动。
因此，通过在折叠箱的底座上设置凹槽11和与凹槽11配合的第二凸起12，以及在折叠箱的长短侧板上分别设置与凹槽11配合的凸起27、37，从而无论在折叠箱处于展开状态还是处于折叠状态，都能够实现上、下两层折叠箱的相互定位和固定，从而将上下两层折叠箱可活动地固定在一起。
图30是两层折叠箱堆垛在一起时下层折叠箱侧板上的凸起与上层折叠箱底座上的凹坑的配合示意图。如图30所示，折叠箱的底座1的底面设有沿该底座的宽度方向等距布置的4排凹槽11，因此，当多层折叠箱堆垛在一起时，下层折叠箱的侧板上的凸起刚好卡入上一层折叠箱的底座1上的凹槽11内，从而将上下两层的折叠箱相互固定。
下面参照图31-34来描述本发明的另一实施例。其中，图31是本发明另一实施例的长侧板的立体图，图32是图31的长侧板的主视图，图33是图32中沿线A-A剖开的剖视图，图34是图32中沿线B-B剖开的剖视图。如图31-34所示，本发明与前一实施例的区别在于，在本实施例中，在长侧板3A上缘和下缘设有沿侧板长度方向延伸的空腔31A、32A，在长侧板31A的左端部和右端部设有沿侧板高度方向延伸的空腔(图未示)，且长侧板3A的上缘的空腔31A与左端部和右端部的空腔流体连通，长侧板3A的下缘的空腔32A与左端部和右端部的空腔间隔开。如图33所示，在本实施例中，长侧板3A的下缘的空腔32A与左端部和右端部的空腔在长侧板3A的转角30A间隔开。在本实施例中未详细描述的地方，请参照前一实施例的相关描述。
下面参照图35-38来描述本发明的另一实施例。其中，图35是本发明另一实施例的长侧板的立体图，图36是图35的长侧板的主视图，图37是图35中沿线A-A剖开的剖视图，图38是图35中沿线B-B剖开的剖视图。如图35-38所示，本发明与前一实施例的区别在于，在本实施例中，在长侧板3B的上缘和下缘设有沿侧板长度方向延伸的空腔31B、32B，在长侧板3B的左端部和右端部设有沿侧板高度方向延伸的空腔(图未示)，且长侧板3B的上缘的空腔31B 与左端部和右端部的空腔流体连通，长侧板3B的下缘的空腔32B与左端部和右端部的空腔间流体连通，然而如图37所示，在本实施例中，长侧板3B的左端部和右端部的空腔在长侧板3B的中部间隔开，即在本实施例中，长侧板3B的左端部和右端部的空腔包括相互间隔开的上空腔和下空腔，上空腔和下空腔在长侧板3B的中部间隔开。虽然在本实施例中，长侧板左端部和右端部的上空腔和下空腔在长侧板3B的中部间隔开，然而，本领域的技术人员可以理解，长侧板左端部和右端部的上空腔和下空腔也可以在长侧板3B的其它位置间隔开，比如在长侧板3B的1/4高度处，在长侧板3B的3/4高度处等。在本实施例中未详细描述的地方，请参照前述实施例的相关描述。
在本发明中，侧板下缘设有沿侧板长度方向延伸的空腔，从而当各侧板处于直立状态时，设置有空腔的侧板下缘与未设置空腔的侧板下缘相互连接形成框架，该框架通过铰链铰接至底座(即各侧板下缘通过铰链铰链至底座形成)，从而形成抵抗底座下陷及护边内凹的强化构件。
此外，由于本发明的折叠箱的侧板时双光面侧板，能最大程度减少折叠箱重复使用过程中清洁后的污物残留问题，提升了清洁效率，并改善了箱体负载后底座的下陷，解决折叠箱多层堆垛时，上下层货物间由于底座受压下陷而产生物品间相互碰撞受损的问题，同时还解决了箱体在较小壁厚，较高折叠率同时，多层箱体堆垛而侧板受压后，因侧板形变导致堆叠失效的仓储存放安全隐患。
以上已详细描述了本发明的较佳实施例，但应理解到，在阅读了本发明的上述讲授内容之后，本领域技术人员可以对本发明作各种改动或修改。这些等价形式同样落于本申请所附权利要求书所限定的范围。

Claims (64)

  1. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述底座的外周设有护边，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板为双光面侧板，以及至少一对所述侧板下缘设置有空腔，且所述折叠箱直立时，所述两对相对的侧板中的一对侧板下缘与另一对侧板下缘通过相互连接形成框架，且所述框架通过铰链铰接至所述底座，从而形成抵抗所述底座下陷及所述护边内凹的强化构件。
  2. 根据权利要求1所述的折叠箱，其特征在于，所述侧板的外侧面设有沿所述侧板的高度方向延伸的至少一个凹部，其中所述凹部的形状设置成当相邻的两个折叠箱相互靠近时形成沿侧板高度方向的腔体。
  3. 根据权利要求1所述的折叠箱，其特征在于，所述铰链设置在所述侧板的下缘底部。
  4. 根据权利要求1所述的折叠箱，其特征在于，每一个所述侧板的上缘和/或下缘设有沿该侧板的长度方向延伸的空腔，从而当所述两对相对侧板处于直立状态时，所述两对相对的侧板的所述上缘的空腔形成矩形框架，和/或所述两对相对的侧板的所述下缘的空腔形成矩形框架。
  5. 根据权利要求1所述的折叠箱，其特征在于，所述空腔沿所述侧板的长度方向延伸预定长度，所述预定长度的长度范围为所述侧板长度的0.8-1倍。
  6. 根据权利要求2所述的折叠箱，其特征在于，两个所述凹部分别临近所述侧板的左右两端的连接部设置，且所述两个凹部之间设有至少另一个所述凹部。
  7. 根据权利要求2所述的折叠箱，其特征在于，所述凹部沿侧板厚度方向的深度范围为所述侧板厚度的0.1-0.9倍，以及所述凹部的高度范围为所述侧板高度的0.1-0.9倍。
  8. 根据权利要求1所述的折叠箱，其特征在于，所述侧板内还设有沿至少一个所述侧板的高度方向延伸的空腔。
  9. 根据权利要求1所述的折叠箱，其特征在于，所述侧板内还设有沿高度方向延伸的相互间隔开的多个空腔。
  10. 根据权利要求1所述的折叠箱，其特征在于，所述侧板内还设有沿该侧 板的长度方向延伸的相互间隔开的多个空腔。
  11. 根据权利要求1所述的折叠箱，其特征在于，所述侧板的上缘设有沿所述侧板的长度方向延伸的空腔，以及所述侧板的左端部或右端部设有沿所述侧板的高度方向延伸的空腔。
  12. 根据权利要求1所述的折叠箱，其特征在于，，所述侧板上缘和下缘形成的空腔与所述侧板左端部形成的空腔构成“C”字形结构，和/或所述侧板上缘和下缘形成的空腔与所述侧板右端部形成的空腔构成反“C”字形结构。
  13. 根据权利要求1所述的折叠箱，其特征在于，，所述侧板的上缘设有沿该侧板的长度方向延伸的空腔，在所述侧板的左端部和右端部设有沿该侧板的高度方向延伸的空腔，其中，所述侧板的上缘形成的空腔与所述侧板的左端部和右端部形成的空腔流体连通，以及所述侧板的下缘形成的空腔与所述侧板的左端部和右端部形成的空腔间相互间隔开。
  14. 根据权利要求1所述的折叠箱，其特征在于，所述侧板的下缘形成的空腔与所述侧板的左端部和右端部形成的空腔分别在所述侧板的左下转角和右下转角相互间隔开。
  15. 根据权利要求1所述的折叠箱，其特征在于，在所述侧板的上缘设有沿该侧板的长度方向延伸的空腔，在所述侧板的左端部和右端部设有沿该侧板的高度方向延伸的空腔，且所述侧板的左端部和右端部的空腔均包括沿该侧板的高度方向间隔开的上空腔和下空腔。
  16. 根据权利要求1所述的折叠箱，其特征在于，所述侧板设有多个气孔，所述多个气孔分布在所述侧板的沿长度方向形成的空腔与沿高度方向形成的空腔封围的区域内。
  17. 根据权利要求1所述的折叠箱，其特征在于，所述空腔为气辅成型空腔。
  18. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板为双光面侧板，至少一个所述侧板内设有沿所述侧板延伸预定长度的空腔，且所述侧板的外侧面设有沿所述侧板的高度方向延伸的至少一个凹部，其中所述凹部的形状设置成当相邻的两个折叠箱相互靠近时形成沿侧板高度方向的腔体。
  19. 根据权利要求18所述的折叠箱，其特征在于，两个所述凹部分别临近所述侧板的左右两端的连接部设置，且所述两个凹部之间设有至少另一个所述凹部。
  20. 根据权利要求18所述的折叠箱，其特征在于，所述侧板的外侧面设有沿所述侧板的高度方向延伸的至少一个凹部，其中所述凹部的形状设置成当相邻的两个折叠箱相互靠近时形成沿侧板高度方向的腔体。
  21. 根据权利要求18所述的折叠箱，其特征在于，所述预定长度的长度范围为所述侧板长度的0.8-1倍。
  22. 根据权利要求18所述的折叠箱，其特征在于，所述空腔形成于所述侧板的厚度内。
  23. 根据权利要求18所述的折叠箱，其特征在于，所述凹部沿侧板厚度方向的深度范围为所述侧板厚度的0.1-0.9倍，以及所述凹部沿侧板高度方向的长度范围为所述侧板高度的0.1-0.9倍。
  24. 根据权利要求18所述的折叠箱，其特征在于，所述侧板内设有沿高度方向延伸的相互间隔开的多个空腔。
  25. 根据权利要求18所述的折叠箱，其特征在于，所述空腔沿所述至少一个侧板的长度方向延伸。
  26. 根据权利要求18所述的折叠箱，其特征在于，所述侧板内设有沿该侧板的长度方向延伸的相互间隔开的多个空腔。
  27. 根据权利要求18所述的折叠箱，其特征在于，所述侧板设有多个气孔，所述多个气孔分布在所述侧板的沿长度方向形成的空腔与沿高度方向形成的空腔封围的区域内。
  28. 根据权利要求18所述的折叠箱，其特征在于，所述空腔为气辅成型空腔。
  29. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板为双光面侧板，至少一个所述侧板内设有沿所述侧板延伸预定长度的空腔，以及所述侧板的顶面设有凸起，所述底座的下底面设有与所述凸起配合的凹槽，当多个折叠箱堆垛时，上一个折叠箱的底座的下底面的凹槽卡入下一个折叠箱的对应侧板顶面的 所述定位凸起。
  30. 根据权利要求29所述的折叠箱，其特征在于，每一个所述侧板的顶面设有至少两个所述凸起。
  31. 根据权利要求29所述的折叠箱，其特征在于，所述预定长度的长度范围为所述侧板长度的0.8-1倍。
  32. 根据权利要求29所述的折叠箱，其特征在于，所述侧板的外侧面设有沿高度方向延伸的凹部。
  33. 根据权利要求29所述的折叠箱，其特征在于，所述凹部沿侧板厚度方向的深度范围为所述侧板厚度的0.1-0.9倍，以及所述凹部的高度范围为所述侧板高度的0.1-0.9倍。
  34. 根据权利要求29所述的折叠箱，其特征在于，所述侧板内设有沿高度方向延伸的相互间隔开的多个空腔。
  35. 根据权利要求29所述的折叠箱，其特征在于，所述空腔沿所述至少一个侧板的长度方向延伸。
  36. 根据权利要求29所述的折叠箱，其特征在于，所述侧板内设有沿该侧板的长度方向延伸的相互间隔开的多个空腔。
  37. 根据权利要求29所述的折叠箱，其特征在于，所述侧板设有多个气孔，所述多个气孔分布在所述侧板的沿长度方向形成的空腔与沿高度方向形成的空腔封围的区域内。
  38. 根据权利要求29所述的折叠箱，其特征在于，所述空腔为气辅成型空腔。
  39. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板为双光面侧板，以及至少一对所述侧板的下缘内部形成有沿所述侧板的长度方向延伸预定长度的空腔，且形成有所述空腔的下缘与另一对相对的侧板的下缘相互连接而形成框架。
  40. 根据权利要求39所述的折叠箱，其特征在于，两个所述空腔分别沿所述侧板的高度方向延伸并分别设置于所述侧板的左右两端的连接部内。
  41. 根据权利要求39所述的折叠箱，其特征在于，所述空腔沿高度方向从所 述侧板的上缘延伸到所述侧板的下缘，或从所述侧板的上缘向下延伸预定长度，或从所述侧板的下缘向上延伸预定长度。
  42. 根据权利要求39所述的折叠箱，其特征在于，每一个所述侧板的上缘和/或下缘设有沿该侧板的长度方向延伸的空腔，从而当所述两对相对侧板处于直立状态时，所述两对相对的侧板的所述上缘的空腔形成矩形框架，和/或所述两对相对的侧板的所述下缘的空腔形成矩形框架。
  43. 根据权利要求39所述的折叠箱，其特征在于，所述折叠箱的长与宽之比等于3:2，且所述底座的底面设有沿该底座的宽度方向布置的多排凹槽。
  44. 根据权利要求39所述的折叠箱，其特征在于，所述底座的下底面在1/3所述底座的长度和2/3所述底座的长度处布置有多个凹槽。
  45. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述底座的外周设有护边，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板内形成有空腔，且所述空腔的至少一部分在所述侧板的上缘沿该侧板的长度方向延伸，所述空腔的至少另一部分在所述侧板的左右两端的连接部内沿该侧板的高度方向延伸，以及所述空腔的至少另一部分在所述侧板的下缘内沿该侧板的长度方向延伸。
  46. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述底座的外周设有护边，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板内形成有空腔，且所述空腔的至少一部分在所述侧板的上缘沿该侧板的长度方向从左端延伸至右端，所述空腔的至少另一部分在所述侧板的左右两端的连接部内沿该侧板的高度方向从下缘延伸至上缘，以及所述空腔的至少还一部分在在所述侧板的下缘内沿该侧板的长度方向从左端延伸至右端。
  47. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述底座的外周设有护边，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述侧板的下缘内部设有空腔，以及所述侧板的下缘的下侧设有铰链座，所述铰链座的两端设有铰链轴，以及所述铰链座的中部设有挂台，所述底座上设有铰链槽，所述铰链槽内设有第一限位凸台和第二限位凸台，其中所述挂台与所述第一限位凸台配合，所述铰链轴与所述第二限位凸台配合。
  48. 根据权利要求47所述的折叠箱，其特征在于，所述铰链轴的端部设有第三限位凸台，该第三限位凸台的轮廓面与所述第二限位凸台配合。49.一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述两对相对的侧板中的一对是相对的长侧板，另一对是相对的短侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，其特征在于，所述长侧板的左右端部内部设有沿侧板高度方向的空腔。
  49. 根据权利要求49所述的折叠箱，其特征在于，所述空腔从所述长侧板的底部延伸到所述长侧板的顶部。
  50. 根据权利要求49所述的折叠箱，其特征在于，所述长侧板的左右端部均设有连接部，所述空腔形成于所述连接部内。
  51. 根据权利要求51所述的折叠箱，其特征在于，所述连接部的外侧设有咬合结构，所述短侧板上也设有对应的咬合结构，所述短侧板上的咬合结构与所述长侧板上的咬合结构相互咬合。
  52. 根据权利要求51所述的折叠箱，其特征在于，所述空腔为气辅成型空腔。
  53. 根据权利要求49所述的折叠箱，其特征在于，所述侧板为双光面侧板。
  54. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，所述两对相对的侧板中的一对是相对的长侧板，另一对是相对的短侧板，以及所述长侧板和所述短侧板通过能够锁定机构相互锁定，其特征在于，所述短侧板的左右端部内部设有沿侧板高度方向的空腔。
  55. 根据权利要求55所述的折叠箱，其特征在于，所述短侧板的左右端部设有连接部，所述空腔形成于所述连接部内。
  56. 根据权利要求56所述的折叠箱，其特征在于，所述连接部的外侧设有咬合结构，所述长侧板上也设有对应的咬合结构，所述短侧板上的咬合结构与所述长侧板上的咬合结构相互咬合。
  57. 根据权利要求55所述的折叠箱，其特征在于，所述空腔由相互间隔开的第一段空腔和第二段空腔构成，其中所述第一段空腔从所述短侧板的底部延伸到锁定机构的安装孔的底部，以及所述第二段空腔从所述锁定机构的安装孔的 顶部延伸到所述短侧板的顶部。
  58. 根据权利要求55所述的折叠箱，其特征在于，所述空腔为气辅成型空腔。
  59. 根据权利要求55所述的折叠箱，其特征在于，所述侧板为双光面侧板。
  60. 一种折叠箱，所述折叠箱包括底座和两对相对的侧板，所述两对相对的侧板中的一对是相对的长侧板，另一对是相对的短侧板，所述侧板铰接至所述底座并可相对于所述底座折叠，以及所述长侧板和所述短侧板通过能够锁定机构相互锁定，其特征在于，所述长侧板的左右端部设有连接部，所述短侧板的左右端部设有与所述长侧板的连接部配合的连接部，以及所述长侧板的左右端部内部和/或所述短侧板的左右端部内部均设有沿侧板高度方向的空腔。
  61. 根据权利要求61所述的折叠箱，其特征在于，所述长侧板的左右端部内的空腔从所述长侧板的底部延伸到所述长侧板的顶部，且所述短侧板的空腔由相互间隔开的第一段空腔和第二段空腔构成，其中所述第一段空腔从所述短侧板的底部延伸到锁定机构的安装孔的底部，以及所述第二段空腔从所述锁定机构的安装孔的顶部延伸到所述短侧板的顶部。
  62. 根据权利要求61所述的折叠箱，其特征在于，所述短侧板的连接部的外侧设有咬合结构，所述长侧板的连接部的外侧上也设有对应的咬合结构，所述短侧板上的咬合结构与所述长侧板上的咬合结构相互咬合。
  63. 根据权利要求61所述的折叠箱，其特征在于，所述空腔为气辅成型空腔。
  64. 根据权利要求61所述的折叠箱，其特征在于，所述侧板为双光面侧板。
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