CN211494900U

CN211494900U - Drawing cover type folding box

Info

Publication number: CN211494900U
Application number: CN201922178448.3U
Authority: CN
Inventors: 傅庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-15
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to a folding box, in particular to a drawing cover type folding box, which has stable and flat structure and can be stored in a laminated mode when the box body is folded into a flat plate state, effectively saves the storage space and has good pressure resistance; when the box body is folded into a flat plate state, the box body has a good bearing effect; the deformation process is simple, and the change of the box body structure state and the flat plate structure state in an interchangeable folding state can be realized; in a preferred scheme, a plurality of folding boxes can be combined to form a box body group, so that the box bodies mutually form a combined structure, and a combined folding structure for expanding the accommodating storage space can be further formed.

Description

Drawing cover type folding box

Technical Field

The utility model relates to a folding box, concretely relates to pull formula of covering folding box.

Background

With the development of the logistics industry and the deep consciousness of the environmental protection concept, the recyclable plastic turnover boxes are increasingly used to replace cartons in the processes of loading, transporting and storing goods. The folding box made of plastics is more and more widely used in the logistics industry as a turnover box, is more suitable for the turnover of the turnover box in a non-use state in midway at different logistics points, and can effectively save the occupied space of a transport vehicle.

At present, plastic folding boxes are available in the market, box walls are hinged and enclosed by hinge parts to form an enclosed wall structure with an upper opening and a lower opening, and the upper opening and the lower opening are correspondingly sealed by a box cover and a box bottom which are separated from each other to form a box body structure; in the non-use state, the enclosing wall is folded along the hinge part to form a plate-shaped structure, and the enclosing wall is generally classified and stacked at the logistics storage point by a box cover, a box bottom and a folded plate-shaped enclosing wall. At the object flow point where the objects flow greatly, the phenomenon of lacking the box cover/box bottom/enclosing wall due to improper storage is easy to occur; and with the arrangement scheme that the box body and the box cover are separated, when the box cover, the box bottom and the folded plate-shaped surrounding wall are folded to the box body state, great inconvenience is also caused.

Disclosure of Invention

The utility model aims at providing a drawing cover type folding box, which has stable and flat structure and can be stored in a stacking way when the box body is folded into a flat plate state, thereby effectively saving the storage space and having good pressure resistance; when the box body is folded into a flat plate state, the box body has a good bearing effect; the deformation process is simple, and the change of the box body structure state and the flat plate structure state in an interchangeable folding state can be realized; in a preferred scheme, a plurality of folding boxes can be combined to form a box body group, so that the box bodies mutually form a combined structure, and a combined folding structure for expanding the accommodating storage space can be further formed.

In order to achieve the above purpose, the utility model adopts the following technical means to implement:

the utility model provides a pull formula lid formula folding box, its by preceding, back, left and right tank wall and case lid, the bottom of the case articulated each other and enclose and close the box that forms an airtight accommodation space, its characterized in that:

the front box wall and the left box wall are hinged with each other through a left front hinge part,

the rear box wall and the left box wall are hinged with each other through a left rear hinge part,

the rear box wall and the right box wall are hinged with each other through a right rear hinge part,

the front box wall and the right box wall are hinged with each other through a right front hinge part,

the box cover can slide in along the rear wall cavity slide rail of the rear box wall and is fixed in the rear wall cavity;

the box bottom and the front box wall are hinged with each other through a lower hinge part, and the box bottom can be folded and fixed into a front box wall cavity of the front box wall along the lower hinge part;

when the front box wall, the rear box wall, the left box wall and the right box wall are in unfolded states along the left front hinge part, the left rear hinge part, the right rear hinge part and the right front hinge part, and when the front box wall, the rear box wall, the left box wall and the right box wall mutually enclose to form a rectangular upper opening and a rectangular lower opening of the box, the box cover slides into a box cover slide way of the front box wall and/or the rear box wall through the side opening on the right box wall and closes the upper opening of the box; meanwhile, the box bottom can be folded along the lower hinge part, and is mutually fixed with the rear and/or left and/or right box walls and seals the lower opening of the box body;

in the flat plate structure state, the front box wall, the rear box wall, the left box wall and the right box wall form a closed state along the left front hinge part, the left box wall, the rear box wall, the right box wall and the left front hinge part, the front box wall and the left box wall are coplanar, meanwhile, the rear box wall and the right box wall are coplanar, a box cover which is slid into and fixed in the cavity of the rear box wall is as thick as the rear box wall and as thick as the right box wall, and a box bottom which is folded into the cavity of the front box wall is as thick as the front box wall and.

Furthermore, a side opening on the upper edge of the right box wall and box cover slideways of the front and/or rear box walls form a common rail structure; when the box cover covers the upper opening of the box body, the left edge of the box cover pushes against the upper edge of the inner wall surface of the left box wall.

Furthermore, the rear wall cavity slide rail is a guide convex strip positioned in the center of the rear wall cavity wall, and the box cover is provided with a notch groove in sliding fit with the guide convex strip.

Furthermore, the lower hinge part consists of a hinge shaft and a buckle-shaped pin which are matched, and the hinge shaft and the buckle-shaped pin are complementarily arranged on the bottom edge of the inner wall surface of the front box wall and the front edge of the box bottom in butt joint with the bottom edge of the inner wall surface of the front box wall.

Furthermore, the upper surface and the lower surface of the edge of the box bottom are clamped and fixed by clamping structures arranged at the lower parts of the rear and/or left and/or right box walls, and the clamping structures and/or the box bottom are clamped and fixed/released by elastic acting force.

Still further, the clamping structure comprises a rigid clamp and an elastic buckle:

the rigid clamping buckles are arranged on the upper and lower surfaces of the left/right edges of the box bottom and are arranged on the lower parts of the left/right box walls, and the box bottom elastically expands towards the rigid clamping buckles and enables the rigid clamping buckles to clamp and fix the upper and lower surfaces of the left/right edges of the box bottom; the bottom of the box is elastically spread outwards towards the rigid clamp buckles, and the left/right edges of the bottom of the box are clamped, fixed and released from fixation by the rigid clamp buckles on the upper surface and the lower surface;

the elastic buckle is arranged at the lower part of the right/left box wall, the elastic buckle is an elastic sheet with a blocking part, the elastic buckle elastically pushes the blocking part to elastically press and fix the right/left edge of the box bottom and prevent the box bottom from moving up and down, and the elastic buckle is overcome to elastically draw the blocking part to release the pressing and fixing of the blocking part to the right/left edge of the box bottom.

Furthermore, the clamping structure comprises a fastening groove arranged on the bottom edge of the inner wall surface of the rear box wall, the upper groove wall of the fastening groove is in a convex arc surface shape, and the lower groove wall is in a horizontal plane shape, so that the box bottom elastically expands backwards/forwards and the rear edge of the box bottom is clamped and fixed/released with the fastening groove.

As an effective setting scheme:

the left front T-shaped connecting piece rotating shaft part and the left rear T-shaped connecting piece rotating shaft part are correspondingly sleeved in the front side edge and the rear side edge of the left box wall in a shaft sleeved mode, and the front side edge and the rear side edge of the left box wall are provided with a left front rotating groove and a left rear rotating groove which are correspondingly used for enabling the left front T-shaped connecting piece inserting shaft part and the left rear T-shaped connecting piece inserting shaft part to rotate; the rotating shaft parts of the right front and right rear T-shaped connecting pieces are correspondingly sleeved in the front and rear side edges of the right box wall in a shaft way, and the front and rear side edges of the right box wall are provided with right front and right rear rotating grooves for the insertion shaft parts of the right front and right rear T-shaped connecting pieces to rotate correspondingly;

the left side edge of the front box wall and the left front T-shaped connecting piece inserting shaft part are mutually fixed to form the left front hinge part; the right side edge of the inner wall surface of the front box wall and the right front T-shaped connecting piece insertion shaft part are mutually fixed to form the right front hinge part; the left side edge of the inner wall surface of the rear box wall and the left rear T-shaped connecting piece inserting shaft part are mutually fixed to form the right rear hinge part; the right side edge of the rear box wall and the right rear T-shaped connecting piece insertion shaft part are mutually fixed to form the left rear hinge part.

Furthermore, the left front, left rear, right front and right rear T-shaped connecting piece inserting shaft parts are correspondingly fixed with the fixed inserting holes at the left side edge of the front box wall, the left side edge of the inner wall surface of the rear box wall, the right side edge of the inner wall surface of the front box wall and the right side edge of the rear box wall, and compared with the scheme that the T-shaped connecting piece inserting shaft parts and the corresponding adjacent box walls are directly fixed and processed in an integrated mode, the T-shaped connecting piece inserting shaft parts can be more convenient to produce and install; of course, the T-shaped connecting piece insertion shaft part and the corresponding fixing insertion hole can be mutually inserted and then integrated solidification processing modes such as hot melting, gluing and ultrasonic wave matching are carried out, and the mutual fixing of the T-shaped connecting piece insertion shaft part and the corresponding fixing insertion hole is completed.

Furthermore, the fixed jacks at the left side edge of the front box wall and at the right side edge of the inner wall surface of the front box wall are fixed to form a front reinforced base part in an outward expansion mode, and a front reinforced base part accommodating part matched with the front reinforced part is arranged on the surface, which is attached to the box bottom and the front box wall, of the box bottom; the fixed jack fixed wall at the right side edge of the rear box wall expands outwards to form a rear reinforced base part, and a rear reinforced base part accommodating part matched with the rear reinforced part is arranged on the attaching surface of the box cover and the rear box wall.

Still further, the front reinforcing base accommodating part is clamped and fixed by a clamping structure arranged at the lower part of the rear and/or left and/or right box wall, and the clamping structure and/or the box bottom are clamped and fixed/released by elastic acting force.

Furthermore, the side edges of the left box wall and the right box wall are in the shape of an outer right-angle edge and an inner round-angle edge; the inner side fillets of the left box wall and the right box wall slide along the contact surfaces of the adjacent front box wall and the adjacent rear box wall in a tangent mode.

As an effective arrangement scheme, the upper edge and/or the lower edge of the front and/or rear and/or left and/or right box wall is/are provided with laminated plug connectors, and the laminated plug connectors are used for mutually connecting two folded boxes in pairs in an up-and-down and/or left-and-right and/or front-and-back overlapped manner.

The utility model discloses at least, have following useful part:

1. the utility model can complete the forming of the box body through simple folding action, and close the upper opening of the box body through inserting the box cover; the box cover is drawn out and inserted into the rear box wall cavity of the rear box wall, and the folding box bottom and the front box wall cavity form a flat plate convenient to store, so that the box cover and the box bottom do not need to be separated from the folded plate-shaped enclosing wall for storage; the folding-inserting-closing action in the change process is simple to operate, and when the box body is folded into a box body structure state and a flat plate structure state, a stable structure state can be correspondingly formed;

2. the box bottom can be fixed by the clamping structure through reasonably arranging the clamping structure, so that the bearing effect of the box body can be improved, the integral stability of the box body can be maintained in the processes of bearing and storing the contents, the box body is more suitable for storing the contents with higher weight, the elastic acting force generated by the toughness and the elasticity of the plastic material is utilized, the folding deformation process is not hindered, and the clamping structure can be ensured to have a stable fixing effect on the box bottom;

3. the stacked plug connectors are arranged to combine the plurality of box bodies, so that each box body can form a stable box body combination, a stable structure can be formed during transportation, and relative collision of the box bodies in the transportation process is avoided; and through the upper and lower range upon range of combination of folding case with range upon range of plug connector to form the combination box of intercommunication with a plurality of folding cases of composite state, can make the inner space obtain effectual expansion, be more convenient for the great, the placing that is the form of rectangular shape content.

Drawings

FIG. 1 is a schematic diagram of the present invention with the parts separated;

FIG. 2 is a schematic view showing the combination state of the left box wall, the front box wall and the box bottom of the utility model;

FIG. 3 is a schematic view showing the combination of the right box wall, the rear box wall and the box cover of the present invention;

FIG. 4 is a schematic view of the insertion process of the case cover in the case structure state of the present invention;

fig. 5 is a schematic diagram of the flat plate structure of the present invention;

FIG. 6 is an enlarged view of the elastic buckle of the present invention;

fig. 7 is a schematic view showing a state where a plurality of folding boxes are combined.

Detailed Description

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

It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or reference to the normal use status of the product, and should not be considered as limiting.

Examples

As shown in fig. 1-5, a drawing-lid folding box is formed by hinging a front box wall 1, a rear box wall 2, a left box wall 3, a right box wall 4, a box cover 5 and a box bottom 6 with each other and enclosing a box body with a closed accommodating space, wherein:

the rotating shaft parts of the upper and lower left front T-shaped connecting pieces 301 are sleeved in the front side edge of the left box wall 3 correspondingly in a shaft sleeve mode, the front side edge of the left box wall 3 is provided with a left front rotating groove 302 for enabling the inserting shaft part of the left front T-shaped connecting pieces 301 to rotate for 90 degrees correspondingly, and the upper and lower fixed inserting holes 103 on the left side edge of the front box wall 1 and the inserting shaft part of the left front T-shaped connecting pieces 301 are fixed with each other correspondingly to form a left front hinge part;

the rotating shaft parts of the upper and lower left rear T-shaped connecting pieces 303 are correspondingly sleeved in the rear side edge of the left box wall 3 in a shaft sleeve mode, the rear side edge of the left box wall 3 is provided with a left rear rotating groove 304 which correspondingly allows the shaft part of the left rear T-shaped connecting pieces 303 to be inserted for 90-degree rotation, and the upper and lower fixing insertion holes 203 on the left side edge of the inner wall surface of the rear box wall 2 and the shaft part of the left rear T-shaped connecting pieces 303 are correspondingly fixed with each other to form a left rear hinge part;

the rotating shaft parts of the upper and lower right rear T-shaped connecting pieces 403 are correspondingly sleeved in the rear side edge of the right box wall 4, the rear side edge of the right box wall 4 is provided with a right rear rotating groove 404 which correspondingly rotates the inserting shaft part of the right rear T-shaped connecting piece 403 by 90 degrees, and the upper and lower fixed inserting holes 204 on the right side edge of the rear box wall 2 and the inserting shaft part of the right rear T-shaped connecting piece 403 are correspondingly fixed with each other to form a left rear hinge part;

the rotating shaft parts of the upper right front T-shaped connecting piece 401 and the lower right front T-shaped connecting piece 401 are sleeved in the front side edge of the right box wall 4 correspondingly in a shaft sleeve mode, the front side edge of the right box wall 4 is provided with a right front rotating groove 402 which correspondingly allows the inserting shaft part of the right front T-shaped connecting piece 401 to rotate for 90 degrees, and the upper fixing inserting hole 104 and the lower fixing inserting hole 104 on the right side edge of the inner wall surface of the front box wall 1 and the inserting shaft part of the right front T-shaped connecting piece 401 are;

the upper edge of the front box wall 1 is provided with a front box cover slide way 15, the upper edge of the rear box wall 2 is provided with a rear box cover slide way 25, and the front box cover slide way 15 and the rear box cover slide way 25 are oppositely arranged to form a box cover slide way; a rear box wall cavity 22 is arranged on the outer wall surface of the rear box wall 2, and guide convex strips 221 are arranged in the center of the upper cavity wall and the center of the lower cavity wall of the rear box wall cavity 22; the cover 5 has cutout grooves 521 formed at both side edges thereof to mate with the guide ribs 221.

The front edge of the box bottom 6 is provided with a pair of button-shaped pins 61, the bottom edge of the inner wall surface of the front box wall 1 is provided with a pair of hinge shafts 16, and correspondingly, the button-shaped pins 61 and the hinge shafts 16 are mutually matched and hinged to form a lower hinge part; a front box wall cavity 11 is arranged on the inner wall surface of the front box wall 1; a pair of elastic buttons 306 are arranged on two sides of the bottom edge of the inner wall surface of the left box wall 3, and the elastic buttons 306 are in the shape of elastic sheets 6033 with blocking parts on the outer surfaces; two upper convex blocks 4061 are arranged in the middle of the bottom of the inner wall surface of the right box wall 4, a blocking strip 4062 is arranged at the bottom edge of the inner wall surface, and the two upper convex blocks 4061 and the blocking strip 4062 form a rigid clamp 406; the bottom edge of the inner wall surface of the rear box wall 2 is provided with a buckling groove 26, the upper groove wall 261 of the buckling groove 26 is in a convex arc surface shape, the lower groove wall 262 is in a horizontal plane shape, and the elastic buckle 306, the rigid buckle 406 and the buckling groove 26 are used as a clamping structure for clamping and fixing the box bottom 6.

Through the arrangement, the folding box can be folded to a box body structure state when in use, so that the loading and the transportation of contents are facilitated; and when the box is not in use, the box can be folded to a flat plate structure state, so that the box body is convenient to store. The specific folding operation is as follows:

when the box body is required to be folded to a box body structure state, the front, rear, left and right box walls (1,2,3,4) are correspondingly folded along the left front, left rear, right front and right front hinged parts, so that any two adjacent box walls of the front, rear, left and right box walls (1,2,3,4) mutually form an included angle of 90 degrees and mutually enclose to form a structure with rectangular box body upper and lower openings;

the box bottom 6 is firstly folded downwards along the lower hinged part, and due to the structure of the elastic sheet 6033 of the elastic buckle 306, the box bottom 6 is firstly pressed into the left side of the box bottom 6 when being folded downwards, so that the elastic buckle 306 elastically pushes the blocking part to elastically press and fix the left edge of the box bottom 6, and the blocking part prevents the box bottom 6 from moving upwards and downwards; preferably, the blocking part is a structure with lower convex blocks 6032 at two sides and upper convex blocks 6031 arranged up and down in the middle, so that a rigid clamping point structure can be formed, and the left edge of the box bottom 6 is clamped up and down; furthermore, when the surface provided with the middle upper bump 6031 is arc-surface-shaped, the left edge of the box bottom 6 can slide in downwards conveniently, and a user can conveniently match and fix the left edge of the box bottom 6 with the elastic buckle 306;

then, the right side of the box bottom 6 is pressed downwards, due to the elastic action of the elastic buckle 306 and the tough elasticity of the plastic box bottom 6, the right edge of the box bottom 6 can be pressed into the rigid clamp buckle 406, the box bottom 6 elastically expands towards the rigid clamp buckle 406, and the upper surface and the lower surface of the right edge of the box bottom 6 are clamped and fixed by the rigid clamp buckle 406, preferably, the upper surfaces of two upper convex blocks 4061 arranged on the rigid clamp buckle 406 are in an arc shape so as to facilitate the sliding in of the right edge of the box bottom 6 in the pressing process, and the structure of the barrier strip 4062 is more beneficial to the erection of the box bottom 6 and is not easy to fall off; in addition, the elastic pushing blocking part 306 applies a leftward elastic force to the box bottom 6, so that the right edge of the box bottom 6 and the rigid clamping buckle 406 can be effectively prevented from being mutually buckled;

the rear end of the box bottom 6 is pressed downwards continuously, because the upper groove wall 261 of the buckling groove 26 is in a convex arc surface shape, under the action of the toughness and elasticity of the plastic box bottom 6, the box bottom 6 can be elastically expanded backwards, the rear side edge of the outer wall surface of the box bottom 6 can be arranged on the lower groove wall 262, the rear edge of the box bottom 6 is clamped and fixed with the buckling groove 26, and at the moment, the folding state as shown in fig. 4 can be formed.

In the action process of the fixed box bottom 6, a user only needs to press the box bottom 6 downwards along the lower hinge part to press the left side, the right side and the rear side of the box bottom 6 to finish the fixation, and effectively seal the lower opening of the box body, so that the inconvenience of searching for the box bottom 6 of the folding box is avoided; the clamping structure provides a stable fixing effect for the box bottom 6, and after the box body is filled with contents, the box body still can well bear the contents and maintain the stable structure of the box body; after the contents are filled in, the two sides of the box cover 5 are matched with the box cover slide ways in a sliding mode, only the box cover 5 needs to slide in, the upper opening of the box body is closed, and the process is simple and convenient.

When the box body is required to be folded from the box body structure state to the flat plate structure state, the box cover 5 is firstly drawn out along the box cover slide way, then the notch grooves 521 at the two side edges of the box cover 5 and the guide convex strips 221 of the rear box wall cavity 22 are correspondingly and mutually matched in a sliding manner, and the box cover 5 is inserted into the rear box wall cavity 22, more preferably, matched clamping convex points are arranged on the guide convex strips 221 and the notch grooves 521 or the binding surfaces of the box cover 5 and the rear box wall cavity 22, so that the fixing effect of the box cover 5 and the rear box wall cavity 22 can be further improved;

a pair of elastic buttons 306 of the box bottom 6 are pressed into the left side wall to overcome the elasticity of the elastic buttons 306 to draw in the blocking part, so that the blocking part is released from fixing the left edge of the box bottom 6; then, the elasticity of the plastic box bottom 6 is utilized to enable the box bottom 6 to elastically expand outwards towards the rigid clamp fasteners 406, and the right edge of the box bottom 6 is clamped and fixed by the rigid clamp fasteners 406 on the upper surface and the lower surface and is released from fixation; the box bottom 6 is elastically expanded forwards, and the rear edge of the box bottom 6 is released from clamping and fixing with the buckling groove 26. The box bottom 6 which is recovered to the active state can move to the front box wall cavity 11 along the lower hinge part, so that the box bottom 6 and the cavity wall of the front box wall cavity 11 are fixed with each other in an interference fit manner.

After the inserting and folding actions, the front, back, left and right box walls (1,2,3,4) are correspondingly folded along the left front, left back, right front and right front hinged parts to form a 180-degree included angle between the front and left box walls (1,3) and the back and right box walls (2,4), the front and right box walls (1,4) and the back and left box walls (2,3) are correspondingly in a flat plate shape with a 0-degree included angle, at the moment, the front and left box walls (1,3) are mutually coplanar, the back and right box walls (2,4) are mutually coplanar, the box cover 5 folded into the back box wall cavity 22 is together with the back box wall 2 and the right box wall 4 are mutually equal in thickness, the box bottom 6 folded into the front box wall cavity 11 is together with the front box wall 1 and the left box wall 3 are mutually equal in thickness, a folding state as shown in figure 5 is formed, the box is folded to form a flat plate structure state, and the storage of the box is needed, or when the single box body is transported and circulated, the box body can be folded to form a flat plate structure state and placed in a multi-stacking mode, so that the space can be effectively saved, and the existing folding box is inconvenient to be correspondingly and separately stacked and placed after the box cover 5 and the box bottom 6 are disassembled; moreover, when the folding boxes are stacked in a flat structure, the arrangement mode that the guide convex strip 221 is positioned in the center of the upper cavity wall and the center of the lower cavity wall of the rear box wall cavity 22 instead of the outer side can reduce the defect that the guide convex strip 211 is damaged due to collision in the transportation process when the folding boxes are stacked.

In the present embodiment, as shown in fig. 1 and 5, a side opening 405 forming a common rail structure with the front box cover slide rail 21 is arranged along the right box wall 4, and in a box state, because the side opening 405 and the front box cover slide rail 21 are arranged in a common rail, before the box cover 5 is inserted into the box cover slide rail, the box cover can be primarily guided through the side opening 405, so as to avoid the disadvantage that the insertion process is not smooth due to deviation to one side in the process of inserting the box cover 5 into the box cover slide rail; and only cover the mounting means of closing left case lid 3, right tank wall 4 upper limb for case lid 5, the direction concatenation relation that side opening 405 and case lid 5 formed under the state that finally forms the box, and when case lid 5 covers the box upper limb and closes the opening, case lid 5 left side along the top pressure left tank wall internal face upper limb 31, can also further strengthen the structural stability of left tank wall 3, right tank wall 4 and case lid 5, and the phenomenon that preceding, back, left, right tank wall (1,2,3,4) upper portion swung for case lid 5 does not appear, can further strengthen the box state, the overall stability of folding box in the transportation.

Furthermore, the fixed walls of the fixed jacks (103,104) at the left side edge of the front box wall 1 and the right side edge of the inner wall surface of the front box wall 1 are expanded to form front reinforced base parts (103',104'), and the attaching surfaces of the box bottom 6 and the front box wall 1 are provided with front reinforced base part accommodating parts (603',604') matched with the front reinforced parts; the fixed wall of the fixed insertion hole 204 at the right side edge of the inner wall surface of the rear box wall 2 is expanded outwards to form a rear reinforced base part 204'; the box cover 5 is provided with a rear reinforcing base accommodating part 504 'matched with the rear reinforcing part on the facing surface of the rear box wall 2, the fixing wall of the fixing insertion hole (103,104,204) can be further thickened by arranging the front reinforcing base part and the rear reinforcing base part (103',104',204'), so that the strength of the structure fixing insertion hole (103,104,204) is ensured, the influence of the rotating shaft part of the T-shaped connecting piece (301,401,403) on the swinging deviation force of the fixing insertion hole (103,104,204) is effectively avoided in the folding process, the clamping stability of the rotating shaft part of the T-shaped connecting piece (301,401,403) by the fixing insertion hole (103,104,204) can be further improved, and the damage phenomenon of the fixing wall of the fixing insertion hole (103,104,204) can be effectively avoided.

Still further, the front reinforced base containing part 603' is clamped and fixed by a pair of elastic fasteners 306 arranged at the lower part of the left box wall 3, specifically, a pair of paired clamping positions 603' can be added at both ends of the lower side of each front reinforced base containing part 603', an upper middle bump 6031 of each elastic fastener 306 is paired and installed inside the front reinforced base containing part 603', lower side bumps 6032 of each elastic fastener 306 are paired and installed inside the paired clamping positions 603', under the elastic action of the elastic sheet 6033 and the elastic action of the plastic box bottom 6, the left side edge of the box bottom 6 can be firmly clamped and fixed between the upper middle bump 6031 and the lower bump 6032 of each elastic fastener 306, and the blocking part of each elastic fastener 306 does not protrude from the box bottom 6 to form a convex block, so that the structure at the left side edge of the box bottom 6 is more flat, of course, similar structures can also be adopted for two upper convex points 4061 of the rigid fasteners on the right box wall 4, the two upper convex points 4061 are embedded into the matching position of the right edge of the box bottom 6, so that the right structure of the box bottom 6 is smoother.

In this embodiment, further, each side edge of the left and right box walls 4 is in the shape of an outer right-angle edge and an inner round-angle edge; the inner side fillet edges of the left and right box walls 4 slide tangentially with the adjacent facing surfaces of the front and rear box walls 2, and through the arrangement scheme, when the front, rear, left and right box walls (1,2,3,4) are correspondingly folded along the left front, left rear, right front and right front hinged parts, the fillet edge-shaped structure can ensure that the folding action is smoothly carried out; and in the combination process of each box wall to and when folding to dull and stereotyped structural mode, the structure of right angle edge form can prevent excessive preceding box wall 1 for left box wall 3, back box wall 2 is excessive the inflection for right box wall 4.

In this embodiment, further, the upper and lower edges of the left and right box walls 4 are provided with stacked connectors 7, the stacked connectors 7 may be configured as shown in fig. 7 by adopting a structure of four plug pins, connecting holes (73,74) located at upper and lower positions of the rotating shaft portion of the T-shaped connecting member are plugged at the front and rear edges of each of the left and right box walls 4, the folding boxes are connected by stacking the stacked connectors 7 in a mutually overlapped manner in pairs, by this configuration, a stable box body coupling set can be formed, the box cover 5 of the folding box a at the lowest end is drawn out along the box cover slide way and inserted into the rear box wall cavity 22, the box cover 5 of the folding box B at the middle part is drawn out along the box cover slide way and inserted into the rear box wall cavity 22, the box bottom 6 is folded into the front box wall cavity 11 along the lower hinge portion, when the box bottom 6 of the folding box C at the highest end is folded into the front box wall cavity 11 along the lower hinge portion, a plurality of folding boxes of composite state can form the combination case of intercommunication to interior space obtains effectual expansion, and the volume of being more convenient for is great, is the placing of rectangular shape content.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a pull formula lid formula folding box, its by preceding, back, left and right tank wall and case lid, the bottom of the case articulated each other and enclose and close the box that forms an airtight accommodation space, its characterized in that:

in the structural state of the box body, the front box wall, the rear box wall, the left box wall and the right box wall form an unfolded state along the left front hinge part, the left rear hinge part, the right rear hinge part and the right front hinge part, and when the front box wall, the rear box wall, the left box wall and the right box wall mutually enclose to form a rectangular upper opening and a rectangular lower opening of the box body, the box cover slides into a box cover slide way of the front box wall and/or the rear box wall through the side opening on the right box wall and closes; meanwhile, the box bottom can be folded along the lower hinge part, and is mutually fixed with the rear and/or left and/or right box walls and seals the lower opening of the box body;

under the flat structure state, the front box wall, the rear box wall, the left box wall and the right box wall form a closed state along the left front hinge part, the left box wall, the rear box wall, the right box wall and the left front hinge part, the front box wall and the left box wall are coplanar, meanwhile, the rear box wall and the right box wall are coplanar, a box cover which is slid into and fixed in the cavity of the rear box wall is as thick as the rear box wall and as thick as the right box wall, and a box bottom which is folded into the cavity of the front box wall is as thick as the front box wall and.

2. The pull-lid folding carton of claim 1, wherein: a side opening on the upper edge of the right box wall and box cover slideways of the front and/or rear box walls form a common rail structure; when the box cover covers the upper opening of the box body, the left edge of the box cover pushes against the upper edge of the inner wall surface of the left box wall.

3. A pull-lid folding carton as claimed in claim 2, wherein: the rear wall cavity slide rail is a guide convex strip positioned in the center of the cavity wall of the rear wall cavity, and the box cover is provided with a notch groove in sliding fit with the guide convex strip.

4. The pull-lid folding carton of claim 1, wherein: the lower hinge part is composed of a hinge shaft and a buckle-shaped pin which are matched, and the hinge shaft and the buckle-shaped pin are complementarily arranged on the bottom edge of the inner wall surface of the front box wall and the front edge of the box bottom in butt joint with the bottom edge of the inner wall surface of the front box wall.

5. The pull-lid folding carton as claimed in claim 4, wherein: the upper and lower surfaces of the edge of the box bottom are clamped and fixed by clamping structures arranged at the lower parts of the rear and/or left and/or right box walls, and the clamping structures and/or the box bottom are clamped and fixed/released through elastic acting force.

6. The pull-lid folding carton as claimed in claim 5, wherein: the clamping structure comprises a rigid clamping buckle and an elastic buckle:

the rigid clamping buckles are arranged on the upper and lower surfaces of the left/right edges of the box bottom and are arranged on the lower parts of the left/right box walls, and the box bottom elastically stretches towards the rigid clamping buckles and enables the rigid clamping buckles on the upper and lower surfaces of the left/right edges of the box bottom to be clamped and fixed; the bottom of the box is elastically spread outwards towards the rigid clamp buckles, and the left/right edges of the bottom of the box are clamped, fixed and released from fixation by the rigid clamp buckles on the upper surface and the lower surface;

the elastic buckle is arranged at the lower part of the right/left box wall and is an elastic sheet with a blocking part, the elastic buckle elastically pushes the blocking part to elastically press and fix the right/left edge of the box bottom and prevent the box bottom from moving up and down, and the elastic buckle is overcome to elastically draw the blocking part in to release the pressing and fixing of the blocking part to the right/left edge of the box bottom.

7. The pull-cover folding box according to claim 6, wherein: the clamping structure comprises a fastening groove arranged on the bottom edge of the inner wall surface of the rear box wall, the upper groove wall of the fastening groove is in a convex arc surface shape, the lower groove wall is in a horizontal plane shape, the box bottom elastically expands backwards/forwards, and the upper surface and the lower surface of the rear edge of the box bottom are clamped and fixed/released by the fastening groove.

8. A pull-lid folding carton as claimed in any one of claims 1 to 7, characterized in that:

the left front T-shaped connecting piece rotating shaft part and the left rear T-shaped connecting piece rotating shaft part are correspondingly sleeved in the front side edge and the rear side edge of the left box wall in a shaft sleeved mode, and the front side edge and the rear side edge of the left box wall are provided with a left front rotating groove and a left rear rotating groove which are correspondingly used for the left front T-shaped connecting piece inserting shaft part and the left rear T-shaped connecting piece inserting shaft part to rotate; the rotating shaft parts of the right front and right rear T-shaped connecting pieces are correspondingly sleeved in the front and rear side edges of the right box wall in a shaft way, and the front and rear side edges of the right box wall are provided with right front and right rear rotating grooves for the insertion shaft parts of the right front and right rear T-shaped connecting pieces to rotate correspondingly;

the left side edge of the front box wall and the shaft inserting part of the left front T-shaped connecting piece are mutually fixed to form the left front hinge part; the right side edge of the inner wall surface of the front box wall and the right front T-shaped connecting piece insertion shaft part are mutually fixed to form the right front hinge part; the left side edge of the inner wall surface of the rear box wall and the left rear T-shaped connecting piece inserting shaft part are mutually fixed to form the right rear hinge part; the right side edge of the rear box wall and the right rear T-shaped connecting piece insertion shaft part are mutually fixed to form the left rear hinge part.

9. The pull-lid folding carton of claim 8, wherein: the left front, left rear, right front and right rear T-shaped connecting piece inserting shaft parts are correspondingly fixed with the fixed inserting holes on the left side edge of the front box wall, the left side edge of the inner wall surface of the rear box wall, the right side edge of the inner wall surface of the front box wall and the right side edge of the rear box wall.

10. The pull-lid folding carton of claim 9 wherein: the fixed jacks at the left side edge of the front box wall and the right side edge of the inner wall surface of the front box wall are fixed and expanded to form a front reinforced base part, and the attaching surface of the box bottom and the front box wall is provided with a front reinforced base part accommodating part matched with the front reinforced part; the fixed jack fixed wall at the right side edge of the rear box wall expands outwards to form a rear reinforced base part, and a rear reinforced base part accommodating part matched with the rear reinforced part is arranged on the attaching surface of the box cover and the rear box wall.

11. A pull-lid folding carton as claimed in claim 10, wherein: the front reinforcing base accommodating part is clamped and fixed by a clamping structure arranged at the lower part of the rear and/or left and/or right box wall, and the clamping structure and/or the box bottom are clamped and fixed/released by elastic acting force.

12. The pull-lid folding carton of claim 8, wherein: the edges of the left box wall and the right box wall are in the shape of an outer right-angle edge and an inner round-angle edge; the inner side fillets of the left box wall and the right box wall slide along the contact surfaces of the adjacent front box wall and the adjacent rear box wall in a tangent mode.

13. A pull-lid folding carton as claimed in any one of claims 1 to 7, characterized in that: and laminated plug connectors are arranged on the upper and/or lower edges of the front and/or rear and/or left and/or right box walls, and are used for mutually connecting the two folded boxes in pairs up and down and/or left and right and/or front and back in an overlapped manner.