Storage box

Abstract

A top plate, a bottom plate and two side plates arranged on the left side and the right side are detachably connected to define a frame body, first limiting grooves in the front-back direction are formed in the upper sides of the inner walls of the side plates, blocking walls A are arranged at the front ends and the rear ends of the first limiting grooves, and supporting parts are arranged below the first limiting grooves. The supporting part comprises a supporting plane in the front-back direction and a supporting slope inclining downwards from the supporting plane. The supporting slope is arranged at the front end of the side plate, and the included angle formed by the forward extension line of the supporting slope and the vertical edge of the side plate is an acute angle. Protruding limiting columns are arranged at the rear ends of the outer side faces of the two side walls of the drawing box, and the supporting part supports the drawing box. When the drawing box moves front and back, the bottom wall of the drawing box is attached to the supporting plane all the time, when the drawing box moves forwards till the limiting column abuts against a blocking wall A at the front end of the first limiting groove, the drawing box inclines downwards under the gravity effect, and at the moment, the supporting slope is attached to the bottom wall of the drawing box to provide supporting force for the drawing box.

Description

Technical Field

[0001] The utility model relates to the field of daily necessities, and particularly relates to a storage box. Background Art

[0002] In daily life, in order to facilitate the storage and access of items, storage boxes are often used. Storage boxes can be used for storing kitchen supplies, living room supplies, bedroom supplies, office supplies, and other scenarios. The utility model patent No. CN221012406U provides a storage rack, including a support base. The support base is characterized in that symmetric side frames are arranged at intervals and separated on the support base, and there are multiple layers of spaced support storage rack plate layers between the two symmetric side frames. Each storage rack plate layer is used to place a storage box. The side frames include several side plates, and each side plate is connected up and down. The two ends of the storage rack plate layer are respectively connected to the corresponding side plates.

[0003] However, the storage box in this patent is only placed on the storage rack plate layer. When the items in the storage box are heavy, it is laborious to access. Moreover, after the storage box is partially pulled out of the storage rack plate layer, the opening is limited and it is inconvenient to take. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a storage box with a large opening, convenient access, and labor-saving.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A storage box, made of plastic, includes a top plate and a bottom plate arranged up and down. The top plate and the bottom plate are detachably connected to two side plates arranged on the left and right sides to enclose a frame. On the upper side of the inner wall of the side plate, a first limiting groove running front and back is provided. At the front and back ends of the first limiting groove, there are retaining walls A. Below the first limiting groove, there is a supporting part. The supporting part includes a supporting plane running front and back and a supporting inclined plane inclined downward from the supporting plane. The supporting inclined plane is arranged at the front end of the side plate, and the included angle formed by the forward extension line of the supporting inclined plane and the vertical edge of the side plate is an acute angle. It also includes a drawer box. The drawer box is a box body with an upper opening for accommodating items. At the rear ends of the outer sides of the two side walls of the drawer box, there are protruding limiting columns. The limiting columns are limited in the first limiting groove, so that when the drawer box is pulled forward and backward under force, it always moves along the first limiting groove. The supporting part supports the drawer box. When the drawer box moves back and forth, its bottom wall always fits with the supporting plane. When the drawer box moves forward until the limiting column abuts against the retaining wall A at the front end of the first limiting groove, the drawer box inclines downward under the action of gravity. At this time, the supporting inclined plane fits with the bottom wall of the drawer box to provide a supporting force. The angle of the downward inclination of the drawer box is the same as the angle of the supporting inclined plane.

[0007] Further, the supporting inclined plane is arranged at the front end of the side plate, and the angle formed by the forward extension line of the supporting inclined plane and the vertical edge of the side plate is degrees.

[0008] Further, a second limiting groove running from front to back is also arranged on the lower side of the inner wall of the side plate. Stop walls B are arranged at the front and rear ends of the second limiting groove. When the limiting column is limited in the second limiting groove, the drawer box can always move along the second limiting groove when being pulled forcefully back and forth. The bottom plate contacts the bottom wall of the drawer box and provides a supporting force for it. The stop wall B limits the limiting column in the second limiting groove.

[0009] Further, water leakage holes for leaking water are arranged at the bottom of the drawer box body.

[0010] Further, the interior of the drawer box body is provided with a plurality of square grooves, and a cover plate with one end that can be opened is axially connected to the square grooves.

[0011] Further, the interior of the drawer box body is provided with a plurality of arc grooves. The radian of the arc grooves bulges downward, and the maximum groove width is not greater than the length of the diameter of the circle where the radian is located. A plurality of jacks are longitudinally arranged on the bottom wall of the arc grooves. An inserting piece is also included. The inserting piece is provided with inserting feet that cooperate with the jacks. The inserting piece is inserted into the jacks to divide the arc grooves into a plurality of groove bodies with different lengths.

[0012] Further, slots A with downward openings are arranged on the left, right, and rear sides of the top plate. Slots B with upward openings are arranged on the left, right, and rear sides of the bottom plate. Inserting blocks A extending upward are arranged on the upper side of the side plate, inserting blocks B extending downward are arranged on the lower side of the side plate, and a slot C with a horizontal opening is arranged on the rear side of the side plate. The inserting block B is inserted into the slots B on the left and right sides of the bottom plate so that the side plate is inserted and connected with the bottom plate. A rear plate is also included. After the left and right side edges of the rear plate are inserted into the slot C to the bottom, the lower edge of the rear plate enters the slot B31 at the rear of the bottom plate to form an insertion connection. When the top plate moves downward, the slots A on the left and rear sides are respectively inserted and connected with the inserting blocks A on the left and right sides, and the slot A on the rear side is simultaneously inserted and connected with the upper side of the rear plate.

[0013] Further, at least one sliding cavity is horizontally arranged in the slots B on the left and right sides of the bottom plate. At least one sliding block spaced from the inserting block B is arranged on the lower side of the side plate in an extended manner. The sliding block is an L-shaped block running from front to back. One end of the sliding block is connected to the bottom plate, and the other end can be inserted into the sliding cavity as the bottom plate moves back and forth to form a limit.

[0014] Further, a limiting hook is provided on the upper side of the side plate. The limiting hook includes an extension plate connected to the side plate. A horizontally extending hook head is provided at the top of the extension plate. The hook head includes a limiting inclined surface obliquely arranged upward and a limiting plane horizontally arranged downward. A strip-shaped limiting hole is horizontally formed in a part of the slot wall of the slot A. When the plug A is inserted into the slot A, the acting force generated by the abutment of the limiting inclined surface against the slot wall of the slot A causes the extension plate to bend and generate plastic deformation. When the limiting inclined surface disengages from the slot wall of the slot A, the acting force disappears. After the extension plate returns to its original shape, the hook head is in the limiting hole, and the limiting plane abuts against the upper surface of the limiting hole to form a limit.

[0015] Further, suction cups are provided at the four corners of the bottom wall of the bottom plate.

[0016] In summary, the beneficial effects of the present utility model compared with the prior art are as follows: When it is necessary to take an item, the pull-out box is pulled or pushed. The limiting column is limited in the first limiting groove, and the supporting part provides a supporting force for the pull-out box, reducing the friction between the bottom of the pull-out box and the frame body. Under the action of the guide rail of the first limiting groove, the pulling of the pull-out box is more labor-saving. At the same time, when the pull-out box moves forward until the limiting column abuts against the stop wall A at the front end of the first limiting groove, the pull-out box inclines downward under the action of gravity, so that the upper end opening of the pull-out box forms a larger angle, which is more convenient for taking the items therein by hand compared with the opening facing upward horizontally. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the frame body;

[0018] Figure 2 is a schematic exploded structural diagram of the frame body;

[0019] Figure 3 is a schematic diagram of the bottom plate and a partially enlarged view of the bottom plate;

[0020] Figure 4 is a schematic diagram of the first embodiment of the side plate;

[0021] Figure 5 is a schematic diagram of the second embodiment of the side plate;

[0022] Figure 6 is a partially enlarged view of the side plate;

[0023] Figure 7 is a schematic structural diagram of the rear plate;

[0024] Figure 8 is a schematic diagram of the top plate and a partially enlarged view of the top plate;

[0025] Figure 9 is a schematic diagram of the first embodiment of the pull-out box;

[0026] Figure 10 is a schematic diagram of the second embodiment of the pull-out box;

[0027] Figure 11 Schematic diagram of the third embodiment of the drawer box;

[0028] Figure 12 Schematic bottom perspective view of the storage box;

[0029] Figure 13 Schematic cross-sectional view of the drawer box in the pushed-in state;

[0030] Figure 14 Stereogram of the drawer box in the pulled-out state;

[0031] Figure 15 Schematic partially enlarged cross-sectional view of the drawer box in the pulled-out state;

[0032] Figure 16 Schematic partially enlarged view of the connection structure between the bottom plate and the side plate;

[0033] Figure 17 Schematic partially enlarged view of the connection structure between the top plate and the side plate

[0034] Reference numerals:

[0035] 1. Top plate; 11. Slot A; 12. Limit hole; 2. Side plate; 21. First limit groove; 211. Stop wall A; 22. Second limit groove; 221. Stop wall B; 23. Support part 231. Support plane; 232. Support inclined plane; 24. Insert block A; 25. Limit hook; 251. Extension plate; 250. Hook head; 252. Limit plane; 253. Limit inclined plane; 26. Insert block B; 27. Slide block; 28. Slot C; 3. Bottom plate; 32. Slide cavity; 33. Suction cup; 4. Drawer box; 41. Limit post; 42. Square groove; 421. Cover plate; 43. Arc groove 431. Insertion hole; 44. Water leakage hole; 5. Rear plate; 6. Insert piece; 61. Insert foot Detailed implementation manners

[0036] In the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0037] It should be noted that the embodiments indicated by "an embodiment", "embodiments", "exemplary embodiments", "some embodiments", etc. mentioned in the specification may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. Additionally, when combining an embodiment to describe a specific feature, structure or characteristic, implementing such feature, structure or characteristic in combination with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the relevant art.

[0038] Generally, terms can be understood at least in part from their use in context. For example, at least in part depending on the context, the term "one or more" used herein can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey a set of exclusive factors, but instead, at least in part depending on the context, allowing for the existence of other factors that may not be explicitly described.

[0039] The following further elaborates on the present utility model in conjunction with the accompanying drawings:

[0040] A storage box is made of plastic material, which enables mass production through mold injection molding, as Figures 1-17 shown, a top plate 1 and a bottom plate 3 arranged up and down are detachably connected to two side plates 2 arranged on the left and right sides to enclose a frame, and this frame constitutes the basic framework of the storage box. A drawer box can be arranged inside to cooperate with it. Of course, a rear plate 5 can also be arranged to form a frame enclosing three sides with the two side plates 2 on the left and right sides. On the upper side of the inner wall of the side plate 2, a first limiting groove 21 extending in the front - rear direction is provided. At the front and rear ends of the first limiting groove 21, there are retaining walls A211. Below the first limiting groove 21, there is a supporting portion 23. The supporting portion 23 includes a supporting plane 231 extending in the front - rear direction and a supporting inclined plane 232 inclined downward from the supporting plane 231. As Figure 4 shown, the supporting inclined plane 232 is arranged at the front end of the side plate 2, and the included angle Y formed by the forward extension line X of the supporting inclined plane 232 and the vertical edge of the side plate 2 is an acute angle. The drawer box 4 has an open upper part and can be used to hold items. At the rear ends of the outer sides of the two side walls of the drawer box 4, there are protruding limiting columns 41. The limiting columns 41 are limited in the first limiting groove 21, enabling the drawer box 4 to always move along the first limiting groove 21 when being pulled forcefully back and forth, and the supporting portion 23 supports the drawer box 4; as Figure 13 shown, when the drawer box 4 moves back and forth, its bottom wall always fits against the supporting plane 231. When the drawer box 4 moves backward until the limiting columns 41 abut against the retaining wall A211 at the rear end of the first limiting groove 21, the drawer box 4 enters the frame, as Figure 15As shown, when the drawer box 4 moves forward until the limit post 41 abuts against the stop wall A211 at the front end of the first limit groove 21, the drawer box 4 inclines downward under the action of gravity. At this time, the support inclined plane 232 fits with the bottom wall of the drawer box 4 to provide a support force. The inclination angle of the drawer box 4 downward is the same as the angle of the support inclined plane 232, that is, when taking items in the front, the upper opening part of the drawer box 4 has an inclined plane facing the upper part of the human body. Preferably, the support inclined plane 232 is arranged at the front end of the side plate 2, and the angle Y formed by the forward extension line X of the support inclined plane 232 and the vertical edge of the side plate 2 is 60 degrees, so as to achieve the optimal effect that the upper opening part of the drawer box 4 has an inclined plane facing the upper part of the human body.

[0041] In this embodiment, as Figure 4 shown, only one support part 23 can be arranged at the front end of the side plate 2, and the support plane 231 is only a relatively small section, so that it can cooperate with the limit post 41 limited in the first limit groove 21 to support the drawer box 4; another support part 23 can also be symmetrically arranged at the rear end of the side plate 2 to play a better support role; of course, as Figure 5 shown, the support plane 231 of the support part 23 can also be arranged as a relatively long plane penetrating the front and rear of the side plate 2.

[0042] In order to maximize the use of the space of the frame body and at the same time increase the flexibility of using the storage box, as Figure 4 and Figure 5 shown, a second limit groove 22 running from front to back can be arranged on the lower side of the inner wall of the side plate 2. Stop walls B221 are arranged at the front and rear ends of the second limit groove 22. When the limit post 41 is limited in the second limit groove 22, the drawer box 4 can always move along the second limit groove 22 when being pulled forcefully back and forth. The bottom plate 3 contacts with the bottom wall of the drawer box 4 and provides a support force for it. The stop walls B221 limit the limit post 41 in the second limit groove 22, so that two drawer boxes 4 can be placed up and down in the frame body. The upper drawer box 4 opens obliquely downward to the front, and the lower drawer box 4 opens horizontally to the front. Figure 12 shows a schematic diagram of an embodiment of a storage box with two drawer boxes 4 installed in the frame body.

[0043] As Figure 12 、 Figure 13 and Figure 15 shown, to enhance the stability of placing the storage box, suction cups 33 can be arranged at the four corners of the bottom wall of the bottom plate 3. The suction cups 33 can adsorb on various planes such as the desktop, kitchen counter, washbasin, and ground, further ensuring that the drawer box 4 will not cause the movement and overturn of the storage box during the pulling process and in the open state.

[0044] The structure of the drawer box 4 can have the following three embodiments to meet the needs of storing different items:

[0045] In the first embodiment, a plurality of square grooves 42 are provided inside the box body of the drawer box 4, and a cover plate 421 with one end that can be turned over is axially connected to the square groove 42. This square design can accommodate different types of small items, such as different sewing needles, buttons, zippers and other household items. The cover plate 421 can further ensure that the internal items are enclosed and not affected by moisture, such as storing dry ingredients such as star anise, Chinese prickly ash, and cinnamon leaves.

[0046] In the second embodiment, a plurality of arc grooves 43 are provided inside the box body of the drawer box 4. The arc of the arc groove 43 protrudes downward and the maximum groove width is not greater than the diameter of the circle where the arc is located. In this way, bottles or cans of different diameters can be placed, such as seasonings, beverages, wines, and canned foods, etc. To further optimize the requirement for different lengths of the arc groove 43 due to different heights of such items, a number of jacks 431 can be longitudinally provided on the bottom wall of the arc groove 43, and a plug piece 6 is provided in cooperation with it. The plug piece 6 is provided with a plug foot 61 that cooperates with the jack 431. The plug piece 6 is inserted into the jack 431 to divide the arc groove 43 into a plurality of groove bodies of different lengths, so that the storage capacity can be maximized, which is flexible and convenient.

[0047] In the third embodiment, a water leakage hole 44 for leaking water is provided at the bottom of the box body of the drawer box 4, and no partition is provided in the middle of the drawer box 4. In this way, there are no specific requirements for the volume, size, etc. of the items stored inside the drawer box 4. Coupled with the design of the water leakage hole 44, it can be used to store tea sets, tableware and other items with unspecified shapes.

[0048] The frame body can be integrally formed by injection molding as a whole. To reduce the production difficulty and production cost, the frame body can also be injection molded on each side separately and then assembled. The specific structure of each side is set as follows:

[0049] The left, right, and rear sides of the top plate 1 are provided with slots A11 with downward openings, the left, right, and rear sides of the bottom plate 3 are provided with slots B31 with upward openings, the upper side of the side plate 2 is provided with an insertion block A24 extending upward, the lower side is provided with an insertion block B26 extending downward, and the rear side is provided with a slot C28 with a horizontal opening. The insertion block B26 is inserted into the slots B31 on the left and right sides of the bottom plate 3 so that the side plate 2 is inserted into the bottom plate 3. After the left and right edges of the rear plate 5 are inserted into the slot C28 to the bottom, the lower edge of the rear plate 5 enters the slot B31 at the rear of the bottom plate 3 to form an insertion. The top plate 1 is lowered so that the slots A11 on the left and rear sides are respectively inserted into the insertion blocks A24 on the left and right sides, and the slot A11 at the rear is simultaneously inserted into the upper side of the rear plate 5 to complete the assembly of the frame body.

[0050] On this basis, to enhance the stability of the insertion between the bottom plate 3 and the side plate 2, such as Figures 2-4 , and Figure 16As shown, at least one sliding cavity 32 can be horizontally arranged in the slots B31 on the left and right sides of the bottom plate 3. At least one slider 27 spaced from the insertion block B26 is extended and arranged at the lower edge of the side plate 2. The slider 27 is an L-shaped extending in the front and rear directions. One end of the slider 27 is connected to the bottom plate 3, and the other end can be inserted into the sliding cavity 32 along with the front and rear movement of the bottom plate 3 to form a limit.

[0051] To further enhance the stability of the insertion connection between the top plate 1 and the side plate 2, as Figure 2 , Figure 4 , Figure 8 and Figure 17 shown, a limiting hook 25 is extended and arranged at the upper edge of the side plate 2. The limiting hook 25 includes an extension plate 251 connected to the side plate 2. A hook head 250 extending horizontally is arranged at the top of the extension plate 251. The hook head 250 includes a limiting inclined surface 253 arranged obliquely upward and a limiting flat surface 252 arranged horizontally downward. Preferably, the limiting inclined surface 253 is arranged as an upwardly convex arc surface. A strip-shaped limiting hole 12 is horizontally opened on a partial wall of the slot A11. During the process of inserting the insertion block A24 into the slot A11, the acting force generated by the abutment between the limiting inclined surface 253 and the wall of the slot A11 causes the extension plate 251 to bend and produce plastic deformation. After the limiting inclined surface 253 disengages from the wall of the slot A11, the acting force disappears. After the extension plate 251 returns to its original shape, the hook head 250 is in the limiting hole 12, and the limiting flat surface 252 abuts against the upper surface of the limiting hole 12 to form a limit.

[0052] From the above description, it can be seen that the above embodiments achieve the following technical effects: The storage box is made of plastic material and can be mass-produced by a mold, with lower production costs; the pull-out box 4 is slidably connected to the first limiting groove 21 through the limiting column 41 and abuts against the supporting part 23, reducing the force required to push and pull the pull-out box 4; the downward inclination formed by the pull-out box 4 being supported on the supporting inclined surface 232 after being pulled to the front end makes the opening face the upper half of the human body, improving the convenience of taking items.

[0053] The above is only an exemplary implementation manner of the present invention, rather than being used to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A storage box, made of plastic, comprising a top plate (1) and a bottom plate (3) arranged above and below, wherein the top plate (1) and the bottom plate (3) are detachably connected with two side plates (2) arranged on the left and right sides to form a frame, characterized in that: A first limiting groove (21) extending forward and backward is arranged on the upper side of the inner wall of the side plate (2); retaining walls A (211) are arranged at the front and rear ends of the first limiting groove (21); a supporting portion (23) is arranged below the first limiting groove (21); the supporting portion (23) comprises a supporting plane (231) extending forward and backward and a supporting inclined plane (232) inclined downward from the supporting plane (231); the supporting inclined plane (232) is arranged at the front end of the side plate (2); and the angle formed by the forward extension line of the supporting inclined plane (232) and the vertical edge of the side plate (2) is an acute angle; It also comprises a drawer box (4), the drawer box (4) being a box body with an upper opening and capable of accommodating articles, and protruding limiting columns (41) are arranged at the rear ends of the outer sides of the side walls on both sides of the drawer box (4), and the limiting columns (41) are limited in the first limiting grooves (21) so that the drawer box (4) can always move along the first limiting grooves (21) when being pulled forward and backward by force, and the supporting portion (23) supports the drawer box (4); When the pull-out box (4) moves forward and backward, its bottom wall is always in contact with the supporting plane (231). When the pull-out box (4) moves forward until the limiting column (41) abuts against the retaining wall A (211) at the front end of the first limiting groove (21), the pull-out box (4) tilts downward under the action of gravity. At this time, the supporting inclined surface (232) is in contact with the bottom wall of the pull-out box (4) to provide supporting force therefor. The downward tilt angle of the pull-out box (4) is the same as the angle of the supporting inclined surface (232).

2. A storage box according to claim 1, characterized in that: The supporting inclined surface (232) is arranged at the front end of the side plate (2), and the angle formed by the forward extension line of the supporting inclined surface (232) and the vertical edge of the side plate (2) is 60 degrees.

3. A storage box according to claim 2, characterized in that: A second limiting groove (22) extending forward and backward is also provided on the lower side of the inner wall of the side plate (2), and retaining walls B (221) are provided at both front and rear ends of the second limiting groove (22). The limiting column (41) is limited in the second limiting groove (22) so that the pull-out box (4) always moves along the second limiting groove (22) when being pulled forward and backward by force. The bottom plate (3) contacts the bottom wall of the pull-out box (4) and provides supporting force therefor, and the retaining wall B (221) limits the limiting column (41) in the second limiting groove (22).

4. A storage box according to any one of claims 1 to 3, characterized in that: The bottom of the drawer box (4) is provided with a water leakage hole (44) for leaking water.

5. A storage box according to any one of claims 1 to 3, characterized in that: The drawer box (4) is provided with a plurality of square slots (42) in the box body, and the square slots (42) are axially connected to a cover plate (421) with one end that can be flipped open.

6. A storage box according to any one of claims 1 to 3, characterized in that: The drawer box (4) is provided with a plurality of arcuate grooves (43) in the box body, the arcuate groove (43) is protruding downward and the maximum groove width is not greater than the length of the diameter of the circle where the arcuate groove is located, the bottom wall of the arcuate groove (43) is longitudinally provided with a plurality of insertion holes (431), and also includes an insertion piece (6), the insertion piece (6) is provided with a plug pin (61) matched with the insertion hole (431), and the insertion piece (6) is inserted into the insertion hole (431) to divide the arcuate groove (43) into a plurality of groove bodies of different lengths.

7. A storage box according to any one of claims 1 to 3, characterized in that: The left, right and rear sides of the top plate (1) are provided with slots A (11) opening downwards, the left, right and rear sides of the bottom plate (3) are provided with slots B (31) opening upwards, the upper side of the side plate (2) is provided with an insert block A (24) extending upwards, the lower side is provided with an insert block B (26) extending downwards, and the rear side is provided with a slot C (28) opening transversely, the insert block B (26) is inserted into the slots B (31) on the left and right sides of the bottom plate (3) so that the side plate ( 2) is plugged into the bottom plate (3), and also includes a rear plate (5). After the left and right edges of the rear plate (5) are inserted into the slots C (28) to the bottom, the lower edge of the rear plate (5) enters the slot B (31) behind the bottom plate (3) to form a plug-in connection, and the top plate (1) is downward so that the slots A (11) on the left and rear sides are respectively plugged into the plug blocks A (24) on the left and right sides, and the slot A (11) at the rear is simultaneously plugged into the upper side of the rear plate (5).

8. A storage box according to claim 7, characterized in that: At least one sliding cavity (32) is transversely arranged in the slots B (31) on the left and right sides of the bottom plate (3), and at least one sliding block (27) is extended from the lower side of the side plate (2) and is spaced from the insert block B (26). The sliding block (27) is L-shaped and extends forward and backward. One end of the sliding block (27) is connected to the bottom plate (3), and the other end can be inserted into the sliding cavity (32) to form a limit position as the bottom plate (3) moves forward and backward.

9. A storage box according to claim 8, characterized in that: A limiting hook (25) is extended on the upper side of the side plate (2), the limiting hook (25) comprises an extension plate (251) connected to the side plate (2), a hook head (250) extending laterally is arranged on the top of the extension plate (251), the hook head (250) comprises a limiting inclined surface (253) arranged obliquely on the upper side and a limiting plane (252) arranged horizontally on the lower side, a strip-shaped limiting hole (12) is opened in the horizontal direction of the groove wall of the slot A (11), and the insert block A (24) is inserted During the process of inserting into the slot A (11), the force generated by the abutment between the limiting inclined surface (253) and the slot wall of the slot A (11) causes the extension plate (251) to bend and produce plastic deformation. When the limiting inclined surface (253) is separated from the slot wall of the slot A (11), the force disappears, and the extension plate (251) returns to its original shape. Then, the hook head (250) is in the limiting hole (12), and the limiting plane (252) and the upper surface of the limiting hole (12) abut against each other to form a limit.

10. A storage box according to any one of claims 1 to 3, characterized in that: Suction cups (33) are arranged at the four corners of the bottom wall of the bottom plate (3).

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