CN216995343U

CN216995343U - Stackable containing box

Info

Publication number: CN216995343U
Application number: CN202122424099.6U
Authority: CN
Inventors: 宋旭彬
Original assignee: Guangdong Haixing Plastic and Rubber Co Ltd
Current assignee: Guangdong Haixing Plastic and Rubber Co Ltd
Priority date: 2021-02-01
Filing date: 2021-02-01
Publication date: 2022-07-19
Anticipated expiration: 2031-02-01
Also published as: CN214987121U; CN216995354U; TWM622447U

Abstract

The utility model discloses a stackable containing box, which comprises a bottom plate and a cover plate arranged opposite to the bottom plate, wherein two side plates, a front plate and a rear plate are arranged between the bottom plate and the cover plate, the bottoms of the two side plates are respectively hinged on the left side and the right side of the bottom plate, the bottoms of the front plate and the rear plate are respectively hinged on the front side and the rear side of the bottom plate, the two side ends of the front plate and the rear plate are respectively buckled with the two sides of the corresponding side plates, the top ends of the two side plates, the front plate and the rear plate are respectively provided with an upwards-protruding clamping part, the bottom of the bottom plate is provided with a clamping groove clamped with the clamping part, and when a plurality of containing boxes are stacked up and down, the clamping groove of the containing box on the upper layer can be clamped with the clamping part of the containing box on the lower layer; the bottom of bottom plate is equipped with downward outstanding support convex part, the top of apron be equipped with support concave groove of support convex part looks adaptation. The stacking is stable, different stacking modes are provided, and different stacking requirements are met.

Description

Stackable containing box

Technical Field

The utility model relates to the field of storage boxes, in particular to a stackable storage box.

Background

Along with the improvement of the living standard of people and the acceleration of the rhythm of life, household articles such as storage boxes and the like which are convenient for family life gradually become indispensable components in the life of people. Storage boxes made of various different materials and different in shape are available in the market. The storage box generally includes a box body and a box cover, and a storage space for storing articles is formed in the box body. The traditional storage box stacking mode is as follows: the upper box body is stacked on the lower box cover, while the surface of the traditional box cover is generally a plane, the structure surface is simple, and the stacking is unstable; in addition, the stacking mode of the existing box body and the box cover is single, and various stacking requirements of users cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a stackable containing box which is stable in stacking and has different stacking modes.

The purpose of the utility model is realized by adopting the following technical scheme:

a stackable containing box comprises a bottom plate and a cover plate arranged opposite to the bottom plate, wherein two side plates, a front plate and a rear plate are arranged between the bottom plate and the cover plate, the bottoms of the two side plates are respectively hinged to the left side and the right side of the bottom plate, the bottoms of the front plate and the rear plate are respectively hinged to the front side and the rear side of the bottom plate, the two side ends of the front plate and the rear plate are respectively fastened with the two sides of the corresponding side plates, the top ends of the two side plates, the front plate and the rear plate are respectively provided with an upwards-protruding clamping part, the bottom of the bottom plate is provided with a clamping groove clamped with the clamping part, and when a plurality of containing boxes are stacked up and down, the clamping groove of the containing box on the upper layer can be clamped with the clamping part of the containing box on the lower layer; the bottom of bottom plate is equipped with downward outstanding support convex part, the top of apron be equipped with support concave groove of support convex part looks adaptation.

Further, the bottom of the supporting convex part is provided with a roller, and the bottom of the supporting groove is provided with a roller groove matched with the roller.

Further, the rollers are provided with four.

Furthermore, the clamping device further comprises a reinforcing frame, wherein the reinforcing frame is provided with a reinforcing groove matched with the clamping part.

Further, the bottom plate is provided with a containing cavity; when the containing box is in a folded state, the two side plates, the front plate and the rear plate can be contained in the containing cavity, and the cover plate can be buckled with the bottom plate to fix the two side plates, the front plate and the rear plate in the containing cavity; when the containing box is in a containing state, the two side plates, the front plate, the rear plate and the cover plate enclose a foldable containing box cavity; the front plate comprises a door frame hinged with the bottom plate, a door leaf hinged with the door frame and a locking mechanism used for locking the door leaf in the door frame.

Further, the left and right sides of bottom plate is equipped with the bellied portion of heightening that makes progress, the top surface that adds the portion of heightening is equipped with first articulated recess, one side of first articulated recess extends to on the medial surface that adds the portion of heightening, two the bottom of curb plate all is equipped with first articulated shaft, first articulated shaft joint is in on the first articulated recess.

Furthermore, the side plate comprises a side main plate and a side wing connected with the side main plate, the side wing is connected with a side edge clamping plate extending towards the inner side, the side edge clamping plate is perpendicular to the side wing, a buckling groove is formed in the side edge clamping plate, side protrusions are arranged on the outer side faces of the end portions of the two sides of the front plate and the rear plate, a clamping groove in clamping connection with the side edge clamping plate is formed in the inner side of each side protrusion, a protruding block matched with the buckling groove is arranged in the clamping groove, when the containing box is in an unfolded containing state, the side edge clamping plate is in clamping connection with the clamping groove, and meanwhile, the buckling groove is in limit matching with the protruding block in the vertical direction.

Furthermore, the locking mechanism comprises a handle part hinged to the door leaf, the handle part is connected with a locking part, a locking notch is formed in the inner side of the locking part, a lock column corresponding to the locking part is arranged on the door frame and extends into the locking notch, and the lock column is combined with or separated from the locking notch through rotation of the handle part, so that the door leaf is locked or unlocked.

Furthermore, a first limiting flange is arranged on the outer side of the locking part, a second limiting flange matched with the first limiting flange is arranged on the door frame, and when the door leaf is in a locking state, the first limiting flange and the second limiting flange are clamped.

Further, the locking notch is of an arc-shaped structure. Compared with the prior art, the utility model has the beneficial effects that:

in the utility model, when a plurality of containing boxes need to be stacked up and down, one stacking mode is as follows: with the mutual joint of joint portion of the joint groove of upper storage box and lower floor's containing box, can pile up a plurality of containing boxes like this and in order to make up into the containing cabinet, accomplish the back of piling up, establish the apron lid again on the containing box of top layer, accomplish and pile up. Compared with the traditional direct stacking mode, the clamping part and the clamping groove are clamped with each other, so that the stability and the safety are better, and the assembly is convenient and quick; the other stacking mode is as follows: with the support convex part of upper storage box and the support recess joint of lower floor's storage box, can accomplish and pile up, pile up the completion back, this mode of piling up needs every storage box all to possess the apron, and overall stability is better, satisfies the higher requirement of user.

Drawings

FIG. 1 is a schematic view of a stackable container of the present invention in a stowed position;

FIG. 2 is an exploded view of a stackable tote provided by the present invention;

FIG. 3 is a schematic view of a stackable container of the present invention, without the cover and reinforcing frame shown;

FIG. 4 is an exploded view of a stackable container of the present invention in a collapsed condition;

FIG. 5 is a schematic view of a stackable container of the present invention;

FIG. 6 is a schematic view of a first stacking manner of a stackable container of the present invention;

FIG. 7 is a cross-sectional view of FIG. 6;

FIG. 8 is a second stacking arrangement of stackable totes of the present invention each with a cover and reinforcing frame;

FIG. 9 is a schematic view of a locking mechanism of a stackable tote provided in accordance with the present invention;

FIG. 10 is a schematic view of a front panel of a stackable tote provided in accordance with the present invention;

FIG. 11 is one of the cross-sectional views of FIG. 10 showing the locking notch engaged with the lock cylinder;

FIG. 12 is a second cross-sectional view of FIG. 10 showing the locking notch separated from the lock cylinder;

FIG. 13 is a cross-sectional view of FIG. 1;

FIG. 14 is a schematic view of a stackable container having a door leaf open according to the present invention;

in the figure: 1. a base plate; 11. an accommodating cavity; 12. a raised portion; 13. a first hinge groove; 14. a clamping groove; 15. a support protrusion; 2. a cover plate; 21. a support groove; 22. a roller groove; 3. a side plate; 31. a side main board; 32. a side wing; 33. a side edge clamping plate; 34. buckling grooves; 35. a first hinge shaft; 4. a front plate; 41. a door frame; 42. a door leaf; 43. a locking mechanism; 430. a handle portion; 431. a locking portion; 432. locking the notch; 433. a lock cylinder; 434. a first stop flange; 435. a second position-defining flange; 436. a first rotating shaft; 437. a first rotation hole; 44. a second hinge shaft; 45. a side protrusion; 46. a card slot; 47. a bump; 5. a rear plate; 51. a third hinge shaft; 6. reinforcing the frame; 7. a clamping part; 8. and a roller.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1 to 7, the stackable storage box provided by the present invention comprises a bottom plate 1 and a cover plate 2 disposed opposite to the bottom plate 1, wherein two side plates 3, a front plate 4 and a rear plate 5 are disposed between the bottom plate 1 and the cover plate 2, bottoms of the two side plates 3 are respectively hinged to left and right sides of the bottom plate 1, bottoms of the front plate 4 and the rear plate 5 are respectively hinged to front and rear sides of the bottom plate 1, and two side ends of the front plate 4 and the rear plate 5 are respectively fastened to two sides of the corresponding side plate 3; the bottom plate 1 is provided with an accommodating cavity 11, when the accommodating box is in a folded state, the two side plates 3, the front plate 4 and the rear plate 5 can be accommodated in the accommodating cavity 11, and the cover plate 2 can be buckled with the bottom plate 1 to fix the two side plates 3, the front plate 4 and the rear plate 5 in the accommodating cavity 11; when the containing box is in a containing state, the two side plates 3, the front plate 4, the rear plate 5 and the cover plate 2 enclose a foldable containing box cavity; the front plate 4 comprises a door frame 41 hinged to the bottom plate 1, a door 42 hinged to the door frame 41, and a locking mechanism 43 for locking the door 42 in the door frame 41.

In the utility model, the two side plates 3, the front plate 4 and the rear plate 5 can be folded by rotating 90 degrees towards the inner side of the bottom plate 1 along the hinged position, so that the two side plates 3, the front plate 4 and the rear plate 5 are accommodated in the accommodating cavity 11 of the bottom plate 1, and after the folding, the cover plate 2 is covered, so that the side plates 3, the front plate 4 and the rear plate 5 are fixed on the bottom plate 1, thereby facilitating the transportation and reducing the occupied space of storage and transportation; the both sides tip of front bezel 4 and back plate 5 respectively with the both sides lock joint of corresponding curb plate 3, has strengthened the stability that front bezel 4, back plate 5 are connected with curb plate 3 for the containing box can have higher intensity when being in the state of accomodating, makes curb plate 3 be difficult for taking place to the containing box inboard phenomenon of overturning after depositing article in the containing box like this, satisfies the requirement of accomodating article. Through set up locking mechanism 43 on door leaf 42, locking mechanism 43 locks door leaf 42 on door frame 41 for the article of containing box are difficult for dropping out, have the locking effect of preferred, and the operation is more simple and convenient, and is more safe and stable.

In one embodiment, raised portions 12 protruding upwards are provided at the left and right sides of the bottom plate 1, a first hinge groove 13 is provided at the top surface of the raised portion 12, one side of the first hinge groove 13 extends to the inner side surface of the raised portion 12, first hinge shafts 35 are provided at the bottoms of the two side plates 3, and the first hinge shafts 35 are connected to the first hinge grooves 13 in a clamping manner.

Specifically, the bottom of the front plate 4 and the bottom of the rear plate 5 are respectively provided with a second hinge shaft 44 and a third hinge shaft 51, the top surfaces of the front side and the rear side of the bottom plate 1 are respectively provided with a second hinge groove and a third hinge groove, the second hinge shaft 44 is clamped in the second hinge groove, and the third hinge shaft 51 is clamped in the third hinge groove.

In the utility model, the elevated parts 12 are arranged at the left and right sides of the bottom plate 1, so that the side plates 3 can be stacked up and down when the containing box is in a folded state.

In one embodiment, the side plate 3 includes a side main plate 31 and a side wing 32 connected to the side main plate 31, the side wing 32 is connected to a side edge locking plate 33 extending inward, the side edge locking plate 33 is disposed perpendicular to the side wing 32, the side edge locking plate 33 is provided with a fastening groove 34, lateral protrusions 45 are disposed on outer side surfaces of two side end portions of the front plate 4 and the rear plate 5, inner sides of the lateral protrusions 45 are provided with a fastening groove 46 fastened with the side edge locking plate 33, a protrusion 47 adapted to the fastening groove 34 is disposed in the fastening groove 46, when the storage box is in an expanded storage state, the side edge locking plate 33 is fastened with the fastening groove 46, and the fastening groove 34 is in limit fit with the protrusion 47 in a vertical direction.

In the utility model, the side main plate 31 is connected with the side wing 32 through the arc-shaped surface, so that the containing box is attractive; by arranging the side edge clamping plates 33, the side protrusions 45 and the clamping grooves 46, when the containing box is in a containing state, the side plates 3 are clamped with the front plate 4 and the rear plate 5, so that the connection stability is enhanced; the clamping connection is realized, meanwhile, the connection stability is further improved through the buckling connection of the convex block 47 and the buckling groove 34, the convex block is not easy to disengage even being extruded by the internally stored articles, the storage effect is ensured, and the requirement of storing the articles is met.

In one embodiment, the top ends of the two side plates 3, the front plate 4 and the rear plate 5 are provided with upwards protruding clamping portions 7, the bottom of the bottom plate 1 is provided with clamping grooves 14 clamped with the clamping portions 7, and when the storage boxes are stacked up and down, the clamping grooves 14 of the storage boxes on the upper layer can be clamped with the clamping portions 7 of the storage boxes on the lower layer.

In this embodiment, a first stacking approach is shown, with reference to FIGS. 6-7. When a plurality of containing boxes need to be stacked up and down, the clamping grooves 14 of the containing boxes on the upper layer and the clamping portions 7 of the containing boxes on the lower layer are clamped with each other, so that the containing boxes can be stacked to form a containing cabinet, and after stacking is completed, the cover plate 2 is covered on the containing box on the topmost layer, and stacking is completed. Compared with the traditional direct stacking mode, the first stacking mode of the utility model is mutually clamped by the clamping part 7 and the clamping groove 14, so that the stability and the safety are better, and the assembly is convenient and quick; in addition, this kind of cabinet of accomodating only need one apron 2 can, the user need not purchase a plurality of apron 2 like this, satisfies user's demand.

In one embodiment, the storage box further reinforces a frame 6, and the reinforcing frame 6 is provided with a reinforcing groove matched with the clamping portion 7. When not piling up and the containing box is in the state of accomodating, will consolidate frame 6 and joint portion 7 looks joint, can carry out whole processing with curb plate 3, front bezel 4 and back plate 5 like this and connect, avoid curb plate 3, front bezel 4 and back plate 5 to turn over inwards easily to the bulk strength of containing box guarantees to accomodate the effect.

In one embodiment, the bottom of the bottom plate 1 is provided with a supporting protrusion 15 protruding downward, and the top of the cover plate 2 is provided with a supporting groove 21 adapted to the supporting protrusion 15.

Specifically, the bottom of the supporting protrusion 15 is provided with a roller 8, and the bottom of the supporting groove 21 is provided with a roller groove 22 matched with the roller 8.

In the present embodiment, a second stacking manner is shown, with reference to fig. 8; a plurality of containing boxes with reinforcing frames 6 and cover plates 2 are stacked up and down to form another type of containing cabinet, and the specific stacking mode is as follows: with the support convex part 15 of upper storage box and the support recess 21 joint of lower floor's storage box, can accomplish and pile up, pile up the completion back, owing to support convex part 15 and be equipped with gyro wheel 8, consequently convenient transport has improved the convenience and the practicality of storage box. The bottom of the support groove 21 is provided with a roller groove 22 adapted to the roller 8, so that stacking is not affected. It should be noted that, this kind of mode of stacking all needs every containing box to have apron 2 and reinforcement frame 6, and overall stability is better, satisfies the higher requirement of user.

In addition, the outside of two curb plates 3 all is provided with holds the recess, and the recess transport containing box is held to handheld holding of general user, improves the convenience of user's operation.

In one embodiment, the locking mechanism 43 includes a handle 430 hinged to the door 42, the handle 430 is connected to a locking portion 431, a locking notch 432 is formed inside the locking portion 431, a locking column 433 corresponding to the locking portion 431 is formed on the door frame 41, the locking column 433 extends into the locking notch 432, and the locking column 433 is combined with or separated from the locking notch 432 by rotation of the handle 430, so as to lock or unlock the door 42.

Specifically, a first limit flange 434 is disposed on an outer side of the locking portion 431, and the door frame 41 is provided with a second limit flange 435 adapted to the first limit flange 434, wherein when the door leaf 42 is in a locked state, the first limit flange 434 is engaged with the second limit flange 435. The locking effect is further increased by the provision of a first position-defining flange 434 and a second position-defining flange 435.

Specifically, when the handle 430 is rotated by a certain angle, the locking column 433 is separated from the locking notch 432.

More specifically, the locking notch 432 is an arc-shaped structure. Tests show that the locking notch 432 of the arc-shaped structure has a better locking effect.

In the present invention, two door leaves 42 hinged in the door frame 41 are taken as an example for explanation, correspondingly, each door leaf 42 is correspondingly provided with one locking mechanism 43, and the two locking mechanisms 43 are respectively hinged on the opposite sides of the two door leaves 42; of course, besides two half-opened door leaves 42, a door leaf 42 with a single-opened structure can be hinged in the door frame 41, and the movement mechanism and effect of the door leaf 42 are the same in both cases, which is not described in detail herein; the structure of the locking mechanism 43 is shown in fig. 6, and in this embodiment, two locking portions 431 are symmetrically disposed on the handle 430 for explanation, but instead of two locking portions 431, only one locking portion 431 may be disposed on the handle 430, and the movement mechanism and effect of the locking portion 431 and the lock column 433 thereon are the same in both cases, and detailed description thereof is omitted here. A first rotating hole 437 is formed in the inner side of the locking part 431, a first rotating shaft 436 matched with the first rotating hole 437 is formed in one side of the door leaf 42, a second rotating shaft is formed in the other side of the door leaf 42, and a second rotating hole matched with the second rotating shaft is formed in the door frame 41; when the door 42 is to be opened, the handle 430 is rotated 40 degrees outwards along the first rotation axis 436, so that the locking notch 432 of the locking portion 431 is disengaged from the door frame 41 to be locked, and after the locking notch 432 is separated from the locking column 433, the handle 430 is pulled outwards, so that the whole door 42 is rotated along the second rotation axis (the rotation angle of the door 42 is 0-90 degrees), and the door 42 is opened. When the door 42 is to be locked, the handle 430 is rotated inward until the locking notch 432 is combined with the locking column 433 when the door 42 is rotated to be flat along the second rotation axis, so as to achieve a locking state.

It should be noted that the door 42 of the storage box of the present embodiment may also be configured as a single-opening structure, and only one corresponding locking mechanism 43 is needed, and the movement mechanism and the effect of the locking mechanism 43 in the two cases are the same, which are not described in detail herein.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The stackable containing box is characterized by comprising a bottom plate (1) and a cover plate (2) arranged opposite to the bottom plate (1), wherein two side plates (3), a front plate (4) and a rear plate (5) are arranged between the bottom plate (1) and the cover plate (2), the bottoms of the two side plates (3) are respectively hinged to the left side and the right side of the bottom plate (1), the bottoms of the front plate (4) and the rear plate (5) are respectively hinged to the front side and the rear side of the bottom plate (1), the two side end parts of the front plate (4) and the rear plate (5) are respectively fastened with the two sides of the corresponding side plates (3), the top ends of the two side plates (3), the front plate (4) and the rear plate (5) are respectively provided with an upwards-protruding clamping part (7), the bottom of the bottom plate (1) is provided with a clamping groove (14) clamped with the clamping part (7), and when a plurality of containing boxes are stacked up and down, the clamping groove (14) of the upper layer of the containing box can be clamped with the clamping part (7) of the lower layer of the containing box; the bottom of bottom plate (1) is equipped with downward outstanding support convex part (15), the top of apron (2) be equipped with support concave groove (21) of support convex part (15) looks adaptation.

2. Stackable container as claimed in claim 1, characterized in that the bottom of the supporting protrusion (15) is provided with a roller (8) and the bottom of the supporting recess (21) is provided with a roller recess (22) adapted to the roller (8).

3. Stackable container as claimed in claim 2, characterized in that said rollers (8) are provided with four.

4. Stackable container as claimed in claim 1, characterized in that it further comprises a reinforcing frame (6), said reinforcing frame (6) being provided with reinforcing grooves adapted to said snap-in portions (7).

5. The stackable container as defined in claim 1, wherein the base plate (1) has a receiving cavity (11); when the storage box is in a folded state, the two side plates (3), the front plate (4) and the rear plate (5) can be stored in the storage cavity (11), and the cover plate (2) can be buckled with the bottom plate (1) to fix the two side plates (3), the front plate (4) and the rear plate (5) in the storage cavity (11); when the containing box is in a containing state, the two side plates (3), the front plate (4), the rear plate (5) and the cover plate (2) enclose a foldable containing box cavity; the front plate (4) comprises a door frame (41) hinged with the bottom plate (1), a door leaf (42) hinged with the door frame (41) and a locking mechanism (43) used for locking the door leaf (42) in the door frame (41).

6. The stackable container as claimed in claim 1, wherein the bottom plate (1) is provided at both left and right sides thereof with raised portions (12) which are upwardly protruded, the raised portions (12) are provided at top surfaces thereof with first hinge grooves (13), one side of the first hinge grooves (13) extends to inner side surfaces of the raised portions (12), and both side plates (3) are provided at bottoms thereof with first hinge shafts (35), the first hinge shafts (35) being engaged with the first hinge grooves (13).

7. Stackable container as claimed in claim 1, characterized in that said side panels (3) comprise a side main panel (31) and lateral wings (32) connected to said side main panel (31), the side wing (32) is connected with a side edge clamping plate (33) extending inwards, the side edge clamping plate (33) is perpendicular to the side wing (32), the side edge clamping plate (33) is provided with a buckling groove (34), the outer side surfaces of the end parts at the two sides of the front plate (4) and the rear plate (5) are respectively provided with a side convex part (45), the inner side of the side convex part (45) is provided with a clamping groove (46) clamped with the side edge clamping plate (33), a convex block (47) matched with the buckling groove (34) is arranged in the clamping groove (46), when the containing box is in an unfolded containing state, the side edge clamping plate (33) is clamped with the clamping groove (46), meanwhile, the buckling groove (34) is in limit fit with the lug (47) along the vertical direction.

8. The stackable container as claimed in claim 5, wherein the locking mechanism (43) comprises a handle part (430) hinged to the door leaf (42), the handle part (430) is connected with a locking part (431), a locking notch (432) is formed on the inner side of the locking part (431), a lock column (433) corresponding to the locking part (431) is formed on the door frame (41), the lock column (433) extends into the locking notch (432), and the lock column (433) is combined with or separated from the locking notch (432) by the rotation of the handle part (430), so that the door leaf (42) is locked or unlocked.

9. The stackable container as defined in claim 8, wherein the locking portion (431) is provided at an outer side thereof with a first position-defining flange (434), and the door frame (41) is provided with a second position-defining flange (435) fitted to the first position-defining flange (434), the first position-defining flange (434) being caught by the second position-defining flange (435) when the door leaf (42) is in the locked state.

10. The stackable container as defined in claim 8, wherein the locking notch (432) is an arcuate structure.