Storage hanging box

Abstract

The utility model discloses a kind of article hanging box comprising: plate body, bottom border, stand and side plate. Specifically, plate body is composed of two parts of hanging plate and bottom plate, and is connected by each other between bottom plate and hanging plate, in assembly process, first, bottom plate is fixed by bottom border, the stability of bottom plate is ensured, then end column and corner column are installed on bottom border, ensure that every component is firmly in place. Then, install side plate between end column and corner column, corner column, through these steps, the processing assembly of entire article hanging box can be completed. Such design not only provides the article hanging box with structural stability and beautiful appearance for hole plate, but also greatly improves the bearing capacity of bottom plate, so that it can bear more weight of goods.

Description

Technical Field

[0001] This utility model relates to the field of storage box technology, and in particular to a storage hanging box. Background Technology

[0002] In actual storage processes, simple hooks or shelves are often insufficient to meet the needs of refined storage, especially when faced with items that cannot be stored using hooks or shelves. In order to better manage and store these items, boxes are used for storage; therefore, it is necessary to develop a storage box with a stable structure and high load-bearing capacity. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the proposed storage hanging box includes several components: a panel, a bottom frame, uprights, and side panels. Specifically, the panel consists of a hanging panel and a bottom panel, which are connected to each other perpendicularly. Hanging tabs are pressed onto the hanging panel; their main function is to hang items in the holes in the perforated panel. The bottom frame is fixedly connected to the bottom panel, and its structure includes two ends and two corners. The uprights include end posts and corner posts. The end posts are installed at the ends of the bottom frame, and the corner posts are installed at the two corners of the bottom frame. A hanging panel is sandwiched between the two end posts to enhance the stability of the overall structure. Three side panels are used; the bottom of the side panels is inserted into the bottom frame, and the sides of the side panels are inserted into the end posts and corner posts, thus forming a complete storage hanging box structure.

[0004] According to some embodiments of this utility model, the specific structure of the bottom frame includes a bottom edge profile, a plug, and a connecting corner bracket; three bottom edge profiles are used, and these three bottom edge profiles are connected to the base plate, serving as the wide side and long side of the bottom frame respectively; a side plate is vertically inserted into the top of the bottom edge profile to ensure the stability of the side plate; specifically, the first and second bottom edge profiles are parallel to each other, and the two parallel bottom edge profiles and the third bottom edge profile are perpendicular to each other, together forming a "U"-shaped frame structure.

[0005] According to some embodiments of this utility model, in order to firmly connect the three bottom edge profiles, they are connected together by connecting corner brackets, and corner posts are inserted into the top of the connecting corner brackets to enhance the stability of the overall structure; at the same time, plugs are also inserted into the first and second bottom edge profiles to seal the two bottom edge profiles, and end posts are inserted into the top of the plugs to ensure that each component is firmly in place.

[0006] According to some embodiments of this utility model, the specific structure of the bottom profile includes an upper cavity, a lower cavity, and a middle plate; the upper cavity and the lower cavity are separated by the middle plate, and a side plate is vertically inserted into the upper cavity to effectively fix the side plate; specifically, the lower cavity is connected to the side of the bottom plate, and the lower cavity is connected to the plug and connecting bracket to ensure the stability of the overall structure.

[0007] According to some embodiments of this utility model, in order to improve the functionality of this storage box, a first screw is provided in the connecting corner bracket. The first screw communicates with the upper cavity to form a light groove. A light strip is installed in the light groove and is fixed to the middle plate. The light strip emits light to provide illumination and also improves the aesthetics of this storage box. Since the side plate is located above the light strip, in order to improve light transmittance, the side plate can be made of light-transmitting materials such as glass, HPL, and acrylic. Alternatively, the light strip can be omitted, and the side plate can be made of non-light-transmitting materials such as aluminum composite panel.

[0008] According to some embodiments of this utility model, raised ribs are provided on the side wall of the upper cavity, with two raised ribs facing each other. The raised ribs support the bottom of the side plate, providing support for the side plate. At the same time, this design also creates a certain gap between the side plate and the light strip, providing heat dissipation space for the light strip during illumination, ensuring the normal operation of the light strip and extending its service life.

[0009] According to some embodiments of this utility model, in order to firmly connect the base plate and the bottom edge profile, a retaining rib is provided on the side wall of the lower cavity, and a snap-fit ​​plate is provided opposite to the retaining rib. Meanwhile, the base plate includes a connecting plate, which includes a flat plate on which multiple snap-fit ​​plates are arranged. During installation, the flat plate is inserted into the lower cavity, causing the snap-fit ​​plates to press against the retaining rib, and simultaneously the snap-fit ​​plates are fastened together, ensuring a stable connection between the base plate and the bottom edge profile.

[0010] According to some embodiments of the present invention, the connecting plate further includes an inclined plate, which is connected to the edge of the base plate. The inclined plate is inclined outward, and the flat plate is formed by extending horizontally outward from the top of the inclined plate. The clamping plate is horizontally set and faces inward, further enhancing the stability of the connection.

[0011] According to some embodiments of this utility model, the plug is provided with a first insert, a second insert, and a groove. The first insert and the second insert are used to connect with the end post and the bottom profile. The first insert is horizontally positioned and inserted into the lower cavity, so that the plug is installed at the end of the bottom profile. At the same time, the second insert is vertically positioned and inserted into the end post, so as to achieve the fixed installation of the end post. In order to fix the side plate, the end post is provided with a first slot along the longitudinal direction. The first slot and the groove cooperate to form a fixed installation space, so that after the plug and the end post are connected, the first slot and the groove cooperate to clamp the side plate, ensuring the stability of the side plate.

[0012] According to some embodiments of this utility model, a first screw hole is provided inside the plug, and a first screw is threaded into the first screw hole; a first opening is opened on the upper side wall of the first screw hole, and the first opening is located on the opposite side of the second insert; after the end post is installed on the plug, the first screw is installed into the first screw hole, at which time the screw shank of the first screw contacts the outer wall of the end post through the first opening; since the screw shank of the first screw has threads, the threads and the outer wall of the end post form an engagement when they contact, so that the end post can form a firm connection with the plug after installation, and prevent the end post from detaching from the plug.

[0013] According to some embodiments of this utility model, the connecting corner bracket is provided with two third inserts, the included angle between the two third inserts being 90°, and the third inserts are used to be inserted tightly into the lower cavity; specifically, a first insert plate and a second insert plate are provided on the top of the connecting corner bracket, a first support platform is provided behind the first insert plate, and a second support platform is provided in front of the second insert plate; when the corner post is inserted into the top of the connecting corner bracket, after the first insert plate and the second insert plate are inserted into the inner cavity of the corner post, the first insert plate is pressed against the inner wall of the corner post on the outer side, and the second insert plate is pressed against the inner wall of the corner post on the inner side; at the same time, the bottom end of the corner post on the outer side presses on the first support platform, and the bottom end of the corner post on the inner side presses on the second support platform, thereby achieving a stable installation between the corner post and the connecting corner bracket.

[0014] According to some embodiments of this utility model, a second screw hole is also provided in the connecting angle bracket, and a second screw is threaded into the second screw hole; a second opening is opened on the upper side wall of the second screw hole, and the second opening is located on the opposite side of the second insert plate; after the second screw is inserted into the second screw hole, the screw shank of the second screw contacts the outer wall of the corner post through the second opening; since the screw shank of the second screw has threads, the threads and the outer wall of the corner post form an engagement when they contact each other, so that the corner post can form a firm connection with the connecting angle bracket after installation, and prevent the corner post from detaching from the connecting angle bracket.

[0015] This utility model has at least the following beneficial effects: 1. During assembly, the base plate is first fixed using the bottom frame to ensure its stability. Next, the end posts and corner posts are installed on the bottom frame, ensuring each component is securely in place. Then, the side panels are installed between the end posts and corner posts, and between the corner posts. These steps complete the assembly of the entire storage box. This provides a structurally stable and aesthetically pleasing storage box. Furthermore, because the hanging panels and base plate are processed from the same piece of board, the load-bearing capacity of the base plate is greatly improved, allowing it to support more items.

[0016] 2. A socket is passed through the end cap and is connected to the upper cavity. A power interface is installed in the socket and is electrically connected to the light strip. A power plug is inserted into the power interface and is connected to an external power source so that the light strip can be powered. At the same time, the installation position of the power interface can be selected according to the location of the external power source (i.e., the power socket), for example, the power interface can be installed in the end cap on the left or the end cap on the right to adapt to different usage needs.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is an overall exploded view of an embodiment of the present utility model; Figure 3 This is a schematic front view of an embodiment of the present utility model; Figure 4 for Figure 3 Schematic diagram of the AA section; Figure 5 This is a front view diagram of the bottom frame and the column of this utility model embodiment; Figure 6 for Figure 5 Enlarged diagram of B in the diagram; Figure 7 for Figure 6 Enlarged diagram of C in the middle; Figure 8 for Figure 6 Enlarged diagram of D in the middle; Figure 9 This is a bottom view of an embodiment of the present utility model; Figure 10 for Figure 9 Schematic diagram of the EE cross section; Figure 11 for Figure 10 Enlarged schematic diagram of F; Figure 12 This is a schematic diagram of the plate body according to an embodiment of the present utility model; Figure 13 for Figure 12 Schematic diagram of the cross-section of GG in China; Figure 14 This is an exploded view of the end post and plug according to an embodiment of the present utility model; Figure 15 This is a rear view schematic diagram of the end post and plug according to an embodiment of the present utility model; Figure 16 This is a bottom view of the end post and plug according to an embodiment of the present utility model; Figure 17 for Figure 16 Schematic diagram of HH in China; Figure 18 This is a schematic diagram of the corner post and connecting corner bracket of an embodiment of the present utility model; Figure 19 This is a top view of the corner post and connecting corner bracket of an embodiment of the present utility model; Figure 20 for Figure 19 Schematic diagram of section II. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0021] Reference Figures 1 to 2 The storage box includes a panel, a bottom frame 300, uprights 400, and side panels 500. Specifically, the panel consists of two parts: a hanging panel 100 and a bottom panel 200. The bottom panel 200 and the hanging panel 100 are connected to each other, and the connection between the two is perpendicular to each other. Hanging tabs 110 are pressed onto the hanging panel 100. The main function of these hanging tabs 110 is to hang them into the holes in the pegboard for fixing and hanging, or to stick them to the wall or cabinet. The bottom frame 300 is fixedly connected to the bottom panel 200. The bottom frame 300 includes two end posts 30A and two corner posts 30B. The uprights 400 include end posts 410 and corner posts 420. The end posts 410 are installed at the end 30A of the bottom frame 300, and the corner posts 420 are installed at the two corners 30B of the bottom frame 300. The hanging panel 100 is sandwiched between the two end posts 410 to enhance the stability of the overall structure. Three side panels 500 are used. The bottom of the side panel 500 is inserted into the bottom frame 300, and the side of the side panel 500 is inserted into the end post 410 and the corner post 420, thus forming a complete storage hanging box structure.

[0022] During assembly, the base plate 200 is first fixed by the bottom frame 300 to ensure its stability. Then, the end posts 410 and corner posts 420 are installed on the bottom frame 300 to ensure that each component is firmly in place. Next, the side plates 500 are installed between the end posts 410 and the corner posts 420. These steps complete the processing and assembly of the entire storage box, providing a structurally stable and aesthetically pleasing box. Moreover, since the hanging plate 100 and the base plate 200 are processed from the same piece of board, the load-bearing capacity of the base plate 200 is greatly improved, enabling it to withstand the weight of more items.

[0023] Side insert plates 120 are also provided on both sides of the hanging plate 100. The side insert plates 120 are inserted into the end post 410 to realize the connection between the hanging plate 100 and the end post 410.

[0024] Reference Figure 2 , 5 6. The specific structure of the bottom frame 300 includes a bottom profile 310, a plug 320, and a connecting bracket 330. Three bottom profiles 310 are used, and these three bottom profiles 310 are connected to the base plate 200, serving as the wide side and long side of the bottom frame 300 respectively. A side plate 500 is vertically inserted into the top of the bottom profile 310 to ensure the stability of the side plate 500. Specifically, the first and second bottom profiles 310 are parallel to each other, and the two parallel bottom profiles 310 and the third bottom profile 310 are perpendicular to each other, forming a "U"-shaped frame structure.

[0025] To securely connect the three bottom profiles 310, they are connected together by connecting brackets 330. Corner posts 420 are inserted into the top of the connecting brackets 330 to enhance the stability of the overall structure. At the same time, plugs 320 are also inserted into the first and second bottom profiles 310 to seal them. End posts 410 are inserted into the top of the plugs 320 to ensure that each component is securely in place.

[0026] Reference Figure 10 , 11 The specific structure of the bottom profile 310 includes an upper cavity 301, a lower cavity 302, and a middle plate 303. The upper cavity 301 and the lower cavity 302 are separated by the middle plate 303. The side plate 500 is vertically inserted into the upper cavity 301 to effectively fix the side plate 500. Specifically, the lower cavity 302 is connected to the side of the bottom plate 200, and the lower cavity 302 is connected to the plug 320 and the connecting bracket 330 to ensure the stability of the overall structure.

[0027] Reference Figures 5 to 7To enhance the functionality of this storage box, a channel 33A is provided within the connecting bracket 330. This channel 33A communicates with the upper cavity 301 to form a light trough 3A. A light strip 600 is installed within the light trough 3A and is fixed to the middle plate 303. The light strip 600 emits light to provide illumination and also enhances the aesthetics of the storage box. Since the side plate 500 is located above the light strip 600, to improve light transmission, the side plate 500 can be made of light-transmitting materials such as glass, HPL, or acrylic. Alternatively, the light strip 600 can be omitted, and the side plate 500 can be made of non-light-transmitting materials such as aluminum composite panel.

[0028] Reference Figure 5 , 8 15. In order to supply power to the light strip 600, a socket 324 is passed through the end cap 320. The socket 324 is connected to the upper cavity 301. A power interface 340 is installed in the socket 324 and is electrically connected to the light strip 600. A power plug 350 is inserted into the power interface 340 and is connected to an external power source so that the light strip 600 can be powered. At the same time, the installation position of the power interface 340 can be selected according to the location of the external power source, i.e., the power socket. For example, the power interface 340 can be installed in the end cap 320 on the left or the end cap 320 on the right to adapt to different usage needs.

[0029] Reference Figure 11 Two ribs 311 are provided on the side wall of the upper cavity 301, facing each other and supporting the bottom of the side plate 500, providing support for the side plate 500. At the same time, this design also creates a certain gap between the side plate 500 and the light strip 600, providing heat dissipation space for the light strip 600 during lighting, ensuring the normal operation of the light strip 600 and extending its service life.

[0030] Reference Figure 11 To securely connect the base plate 200 to the bottom edge profile 310, a retaining rib 312 is provided on the side wall of the lower cavity 302, and a snap-fit ​​plate 313 is provided opposite to the retaining rib 312. The base plate 200 also includes a connecting plate 210, which includes a flat plate 211 on which multiple snap-fit ​​plates 213 are arranged. During installation, the flat plate 211 is inserted into the lower cavity 302, pressing the snap-fit ​​plates 213 against the retaining rib 312, and simultaneously fastening the snap-fit ​​plates 213 together, ensuring a stable connection between the base plate 200 and the bottom edge profile 310.

[0031] Referring to 12 and 13, specifically, the connecting plate 210 also includes an inclined plate 212, which is connected to the edge of the base plate 200. The inclined plate 212 is inclined outward, and the flat plate 211 is formed by extending horizontally outward from the top of the inclined plate 212. The clamping plate 213 is horizontally set and faces inward, further enhancing the stability of the connection.

[0032] Reference Figure 14 The plug 320 is provided with a first insert 321, a second insert 322, and a groove 323. The first insert 321 and the second insert 322 are used to connect with the end post 410 and the bottom profile 310. The first insert 321 is horizontally positioned and inserted into the lower cavity 302, so that the plug 320 is installed at the end 30A of the bottom profile 310. At the same time, the second insert 322 is vertically positioned and inserted into the end post 410, so as to achieve the fixed installation of the end post 410. In order to fix the side plate 500, the end post 410 is provided with a first slot 411 along the longitudinal direction. The first slot 411 and the groove 323 cooperate to form a fixed installation space, so that after the plug 320 and the end post 410 are connected, the first slot 411 and the groove 323 cooperate to clamp the side plate 500, ensuring the stability of the side plate 500.

[0033] Reference Figure 16 , 17 To increase the tightness of the connection between the end post 410 and the plug 320, a first screw hole 325 is provided in the plug 320, and a first screw 326 is threaded into the first screw hole 325. A first opening 327 is opened on the upper side wall of the first screw hole 325, and the first opening 327 is located on the opposite side of the second insert block 322. After the end post 410 is installed on the plug 320, the first screw 326 is installed into the first screw hole 325. At this time, the screw shank of the first screw 326 contacts the outer wall of the end post 410 through the first opening 327. Since the screw shank of the first screw 326 has threads, the threads form an engagement with the outer wall of the end post 410 when they contact each other, so that the end post 410 can form a firm connection with the plug 320 after installation, and prevent the end post 410 from detaching from the plug 320.

[0034] Reference Figure 18 The connecting corner bracket 330 is provided with two third inserts 331, the included angle between the two third inserts 331 is 90°, and the third inserts 331 are used to be inserted tightly into the lower cavity 302; specifically, a first insert plate 332 and a second insert plate 333 are provided on the top of the connecting corner bracket 330, a first support platform 334 is provided behind the first insert plate 332, and a second support platform 335 is provided in front of the second insert plate 333; the corner post 420 is inserted into the top of the connecting corner bracket 330. When the first insert plate 332 and the second insert plate 333 are inserted into the inner cavity of the corner post 420, the first insert plate 332 is pressed against the inner wall of the corner post 420 on the outer side, and the second insert plate 333 is pressed against the inner wall of the corner post 420 on the inner side. At the same time, the bottom end of the corner post 420 on the outer side presses on the first support platform 334, and the bottom end of the corner post 420 on the inner side presses on the second support platform 335, thereby achieving a stable installation between the corner post 420 and the connecting bracket 330.

[0035] Reference Figure 19 , 20 To further improve the stability of the corner post 420 after installation, a second screw hole 336 is provided in the connecting bracket 330, and a second screw 337 is threaded into the second screw hole 336. A second opening 338 is opened on the upper side wall of the second screw hole 336, and the second opening 338 is located on the opposite side of the second insert plate 333. After the second screw 337 is inserted into the second screw hole 336, the screw shank of the second screw 337 contacts the outer wall of the corner post 420 through the second opening 338. Since the screw shank of the second screw 337 has threads, the threads engage with the outer wall of the corner post 420 when in contact, so that the corner post 420 can form a firm connection with the connecting bracket 330 after installation, preventing the corner post 420 from detaching from the connecting bracket 330.

[0036] The corner post 420 has two second slots 421 arranged longitudinally, and the second slots 421 clamp the side plate 500.

[0037] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.

[0038] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A storage hanging box, characterized in that, include: The panel includes a hanging plate (100) and a base plate (200), wherein the base plate (200) and the hanging plate (100) are connected to each other and the base plate (200) and the hanging plate (100) are perpendicular to each other; The bottom frame (300) is fixedly connected to the base plate (200). The bottom frame (300) includes two end portions (30A) and two corner portions (30B). The column (400) includes an end column (410) and a corner column (420). The end column (410) is installed at the end (30A), and the corner column (420) is installed at the two corners (30B). The hanging plate (100) is sandwiched between the two end columns (410). Side panel (500), the side panel (500) is made of three pieces, the bottom of the side panel (500) is inserted into the bottom frame (300), and the side of the side panel (500) is inserted into the end post (410) and the corner post (420).

2. The storage box according to claim 1, characterized in that, The bottom frame (300) includes a bottom profile (310), a plug (320), and a connecting corner bracket (330). Three bottom profiles (310) are used, and the three bottom profiles (310) are connected to the base plate (200). The side plate (500) is vertically inserted into the top of the bottom profile (310). The first and second bottom edge profiles (310) are parallel to each other, and the first and second bottom edge profiles (310) and the third bottom edge profile (310) are perpendicular to each other; The three bottom profiles (310) are connected by the connecting brackets (330), and the corner post (420) is inserted into the top of the connecting brackets (330). The first and second bottom profiles (310) are also fitted with plugs (320), and the end post (410) is inserted into the top of the plugs (320).

3. The storage box according to claim 2, characterized in that, The bottom profile (310) includes an upper cavity (301), a lower cavity (302), and a middle plate (303). The upper cavity (301) and the lower cavity (302) are separated by the middle plate (303). The side plate (500) is vertically inserted into the upper cavity (301). The lower cavity (302) is connected to the side of the base plate (200), and the lower cavity (302) is connected to the plug (320) and the connecting bracket (330).

4. The storage box according to claim 3, characterized in that, The connecting corner bracket (330) has a channel (33A) inside, the channel (33A) is connected to the upper cavity (301) to form a light groove (3A), the light groove (3A) is equipped with a light strip (600), and the light strip (600) is fixed on the middle plate (303); The plug (320) has a through-hole (324) which is connected to the upper cavity (301). A power interface (340) is installed in the plug (324). The power interface (340) is electrically connected to the light strip (600). A power plug (350) is inserted into the power interface (340) and is connected to an external power source.

5. The storage box according to claim 3, characterized in that, The upper cavity (301) is provided with a rib (311) on its side wall. Two ribs (311) are arranged opposite each other and the ribs (311) are supported by the bottom of the side plate (500).

6. The storage box according to claim 3, characterized in that, A retaining rib (312) is provided on the side wall of the lower cavity (302), and a buckle plate (313) is provided opposite to the retaining rib (312). The base plate (200) includes a connecting plate (210), the connecting plate (210) includes a flat plate (211), and a plurality of clamping plates (213) are arranged on the flat plate (211). The flat plate (211) is used to press the clamping rib (312), and the clamping plate (213) is fastened to the buckle plate (313).

7. The storage box according to claim 6, characterized in that, The connecting plate (210) also includes an inclined plate (212), which is connected to the edge of the bottom plate (200). The inclined plate (212) is inclined outward. The flat plate (211) is formed by extending horizontally outward from the top of the inclined plate (212). The card plate (213) is horizontally arranged and faces inward.

8. The storage box according to claim 3, characterized in that, The plug (320) is provided with a first insert (321), a second insert (322), and a groove (323). The first insert (321) is horizontally arranged and is inserted into the lower cavity (302). The second insert (322) is vertically arranged and is inserted into the end post (410). The end post (410) is provided with a first slot (411) along the longitudinal direction. After the plug (320) is connected to the end post (410), the first slot (411) and the groove (323) cooperate to clamp the side plate (500).

9. The storage box according to claim 8, characterized in that, The plug (320) is also provided with a first screw hole (325), in which a first screw (326) is threaded. The upper side wall of the first screw hole (325) has a first opening (327), which is located on the opposite side of the second insert (322). After the first screw (326) is inserted into the first screw hole (325), the screw (326) passes through the first opening (327) and abuts against the outer wall of the end post (410).

10. The storage box according to claim 3, characterized in that, The connecting bracket (330) is provided with two third inserts (331), which are inserted into the lower cavity (302); The top of the connecting corner bracket (330) is provided with a first insert plate (332) and a second insert plate (333). A first support platform (334) is provided behind the first insert plate (332), and a second support platform (335) is provided in front of the second insert plate (333). The first insert plate (332) and the second insert plate (333) are inserted into the corner post (420), and the first insert plate (332) is close to the inner wall of the corner post (420) on the outer side, and the second insert plate (333) is close to the inner wall of the corner post (420) on the inner side. The bottom end of the corner post (420) is pressed on the first support platform (334) and the second support platform (335). The corner post (420) is longitudinally provided with two second slots (421), which clamp the side plate (500). The connecting bracket (330) is also provided with a second screw hole (336), in which a second screw (337) is threaded. The upper side wall of the second screw hole (336) has a second opening (338), which is located on the opposite side of the second insert plate (333). After the second screw (337) is inserted into the second screw hole (336), the screw (337) passes through the second opening (338) and abuts against the outer wall of the corner post (420).

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