Wearable armor manufacturing device

By wearing the magnetic field generator and curing components of the armor production device, the magnetic pigment in the armor polish glue is used to drive the motor to rotate and push the magnetic pigment in the armor polish glue, the complex and time-consuming problem of the cat's eye effect is solved, and the efficient and uniform cat's eye effect is achieved.

CN223143033UActive Publication Date: 2025-07-25GUANGDONG BOMINGRUI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202421699597.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-18
Publication Date
2025-07-25
Estimated Expiration
2034-07-18

AI Technical Summary

Technical Problem

In the prior art, when making wearable nail sheets with cat eye effect, the operation is complicated and time-consuming, and it is difficult to evenly form the same cat eye effect in the entire nail sheet, which is inefficient.

Method used

A wearable armor production device, including a magnetic field generator and a curing component, is adopted to rotate around the tray through a motor drive connection, and evenly push the magnetic pigment in the nail polish glue to form a cat's eye effect, and after the effect is formed, it is cured using a curing device.

Benefits of technology

It realizes efficient and uniform cat-eye effect nail artifact, reduces manual operation time, improves production efficiency, and ensures the consistency of each nail artifact.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of artificial nails, and discloses a wearable nail manufacturing device which comprises a shell, a magnetic field generator, a tray and a curing assembly. The magnetic field generator comprises a motor, a connecting piece and a plurality of magnets, the magnets are evenly arranged at intervals in the circumferential direction of the connecting piece and fixed to the upper surface of the connecting piece, and the motor drives the connecting piece to rotate with the axis of the connecting piece as the center, so that the magnets rotate around the tray and the nail tips in the tray, and manual work is replaced with mechanical motion; the magnetic pigment in the nail polish gel is pushed and pushed by the plurality of rotating magnets, so that the nail polish gel is directionally arranged, and the required cat eye effect is formed; and the curing device is integrated into the wearable nail manufacturing device, so that after the cat eye effect is formed on the nail tip, the curing assembly covers the placing opening of the shell, the curing device faces the tray, the curing device cures the nail tip in the tray, and therefore manufacturing of the cat eye effect nail tip is completed.
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Description

Technical Field

[0001] The utility model relates to the technical field of artificial nails, in particular to a device for manufacturing wearable nails. Background Art

[0002] The cat's eye effect is one of the popular trends in nail art; the so-called cat's eye effect refers to the strong metallic spherical gloss effect formed on the nail art. When making this effect, the manicurist first applies the nail polish with magnetic pigment on the nail. Before the nail polish is evenly applied and not cured, a magnetic rod is used to repeatedly swing back and forth around the outer periphery of the nail piece, and the magnetic rod is used to push the magnetic pigment in the nail polish to make it arranged directionally, so as to form a strong metallic spherical gloss effect. Then, the nail polish is cured to make the magnetic pigment maintain its current position and not return to its original position due to the removal of the magnetic rod.

[0003] When making cat's eye effect nail art, the operation is often complex and time-consuming. To meet the market demand, it is necessary to make wearable nail pieces with cat's eye effect to reduce the time of nail art production; when producing wearable nail pieces, they are usually in strips. Along the middle skeleton of a strip of wearable nail pieces, there are 12 - 24 nail pieces symmetrically arranged on the left and right. The existing method of manually waving the magnetic rod cannot make each nail piece of the whole wearable nail have the same cat's eye effect, and the efficiency is low. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for manufacturing wearable nails, which solves the problem in the prior art that the cat's eye effect cannot be made for the whole strip of wearable nail pieces.

[0005] To achieve the above purpose, the utility model provides a device for manufacturing wearable nails, which includes a housing, a magnetic field generator, a tray and a curing component;

[0006] A first installation cavity is opened in the housing, and a placement opening is opened at the top of the housing. The placement opening is communicated with the first installation cavity;

[0007] The magnetic field generator includes a motor, a connecting piece and a plurality of magnets;

[0008] The connecting piece is horizontally arranged in the first installation cavity. The motor is arranged in the first installation cavity and is connected to the connecting piece. The motor is used to drive the connecting piece to rotate around its own axis; the plurality of magnets are evenly arranged at intervals along the circumferential direction of the connecting piece and are fixed to the upper surface of the connecting piece. The connecting piece and the plurality of magnets jointly enclose a magnetic field generation cavity;

[0009] The tray is fixedly connected to the inner wall of the housing and is arranged in the magnetic field generation cavity. The center of the tray is located on the axis of the connecting piece;

[0010] The curing assembly includes a cover and a curing device. The cover is used to open and close the placement opening. The curing device is connected to the cover, and when the cover closes the placement opening, the curing device faces the tray.

[0011] Further, the tray includes a tray board and a connecting portion. The connecting portion is provided around the edge of the upper surface of the tray board and extends upward, and the connecting portion is fixedly connected to the outer edge of the placement opening.

[0012] Further, a second installation cavity is formed in the cover. A cover opening is formed on the lower end surface of the cover, and the cover opening communicates with the second installation cavity. When the cover closes the placement opening, the cover opening faces the tray;

[0013] The curing device is disposed in the second installation cavity and is connected to the cover opening.

[0014] Further, the curing device includes a mounting seat and a curing lamp;

[0015] The mounting seat is connected to the cover opening. The lower end surface of the mounting seat is parallel to the lower end surface of the cover. A plurality of mounting grooves with their openings facing downward and arranged in a matrix are formed on the mounting seat, and the openings of the mounting grooves extend to the bottom of the cover opening. Each of the mounting grooves is respectively provided with the curing lamp.

[0016] Further, the area of the region where the plurality of mounting grooves are arranged in a matrix is larger than the area of the placement opening.

[0017] Further, a first switch and a second switch are further included;

[0018] The first switch is disposed on the outer surface of the housing and is electrically connected to the motor for controlling the start and stop of the motor;

[0019] The second switch is disposed on the outer surface of the cover and is electrically connected to the curing device for controlling the start and stop of the curing device.

[0020] Further, one side of the cover is connected to the housing through a hinge member, so that the placement opening can be opened or closed by flipping the cover.

[0021] Further, a pair of parallel slide rails are provided on the upper surface of the housing. The bottom of the cover is slidably connected to the slide rails, so that the placement opening can be opened or closed by pushing or pulling the cover.

[0022] Further, the housing includes a bottom plate, a frame and a top plate that are detachably connected in sequence from bottom to top; the bottom plate, the frame and the top plate jointly enclose the first installation cavity, and the placement opening is formed on the top plate;

[0023] The tray is fixedly connected to the lower surface of the top plate.

[0024] Further, the frame includes a pair of first side plates, a pair of second side plates and four connecting columns that are all vertically arranged;

[0025] A pair of the first side plates are arranged in parallel, a pair of the second side plates are arranged in parallel and are disposed between the pair of first side plates, and the pair of first side plates and the second side plates together enclose a square;

[0026] The four connecting columns are disposed at the four right angles of the square, and the bottom of each connecting column is connected to the bottom plate; adjacent first side plates and second side plates are both connected to the connecting columns by fasteners;

[0027] The top plate is connected to the four connecting columns.

[0028] Compared with the prior art, the beneficial effects of a nail art making device provided by the present utility model are as follows:

[0029] For the nail art making device provided by the present utility model, when making a cat-eye effect nail piece, the whole wearable nail piece coated with magnetic pigment-containing nail polish glue and not cured is placed in the tray, the motor is started, and the connecting member is driven to rotate around its own axis, thereby driving the plurality of magnets fixed on the connecting member, so that the plurality of magnets rotate around the tray and the wearable nail piece in the tray, thereby pushing and driving the magnetic pigment in the nail polish glue by mechanical means instead of manually swinging a magnetic rod, so as to form a cat-eye effect. Moreover, the plurality of magnets are evenly spaced along the circumferential direction of the connecting member, which enables the plurality of magnets to rotate around the center of the tray, facilitating the uniform pushing and driving of the magnetic pigment in the nail polish glue to obtain a better cat-eye effect; in addition, a curing device is integrated into the nail art making device, so that after the cat-eye effect is formed, the cover body is closed, the curing device is directed towards the wearable nail piece in the tray, and the nail polish glue on the nail piece is cured to fix the formed cat-eye effect, thus completing the production of the cat-eye effect nail piece. Description of the Drawings

[0030] Figure 1 is a three-dimensional structural schematic diagram of a nail art making device according to Embodiment 1 of the present utility model;

[0031] Figure 2 is a cross-sectional view of a nail art making device according to Embodiment 1 of the present utility model;

[0032] Figure 3 is Figure 2 an enlarged schematic view of area A in

[0033] Figure 4It is a top view of the layout of the tray, magnetic field generator, bottom plate and frame in the first embodiment of the present utility model;

[0034] Figure 5 It is a three-dimensional structural schematic diagram of a nail art making device in the second embodiment of the present utility model.

[0035] In the figure, 100 is a nail art making device; 1 is a housing; 11 is a first installation cavity; 12 is a placement opening; 13 is a bottom plate; 14 is a frame; 141 is a first side plate; 142 is a second side plate; 143 is a connecting column; 15 is a top plate; 2 is a magnetic field generator; 21 is a motor; 211 is a rotating shaft; 22 is a connecting member; 23 is a magnet; 231 is a magnetic field generating cavity; 3 is a tray; 31 is a supporting plate; 32 is a connecting portion; 4 is a curing assembly; 41 is a cover body; 411 is a second installation cavity; 412 is a cover opening; 413 is a ventilation opening; 42 is a curing device; 421 is a mounting seat; 4211 is a mounting groove; 5 is a first switch; 6 is a second switch; 7 is a hinge member; 8 is a handle; 9 is a slide rail. Detailed implementation manners

[0036] The following will further describe in detail the specific implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0037] Embodiment 1

[0038] As Figures 1 to 4 shown, a nail art making device 100 in an embodiment of the present utility model includes a housing 1, a magnetic field generator 2, a tray 3 and a curing assembly 4; a first installation cavity 11 is formed in the housing 1, and a placement opening 12 is formed at the top of the housing 1, and the placement opening 12 communicates with the first installation cavity 11; the magnetic field generator 2 includes a motor 21, a connecting member 22 and a plurality of magnets 23; the connecting member 12 is horizontally arranged in the first installation cavity 11, the motor 21 is arranged in the first installation cavity 11 and is connected to the connecting member 22, and the motor 21 is used to drive the connecting member 22 to rotate around its own axis; a plurality of the magnets 23 are arranged at equal intervals along the circumferential direction of the connecting member 22 and are fixed to the upper surface of the connecting member 22, and the connecting member 22 and the plurality of magnets 23 jointly enclose a magnetic field generating cavity 231; the tray 3 is fixedly connected to the inner wall of the housing 1 and is arranged in the magnetic field generating cavity 231, and the center of the tray 3 is located on the axis of the connecting member 22; the curing assembly 4 includes a cover body 41 and a curing device 42, the cover body 41 is used to open and cover the placement opening 12, and when the curing device 42 is connected to the cover body 41 and the cover body 41 covers the placement opening 12, the curing device 42 faces the tray 3.

[0039] Based on the above technical solution, when making cat-eye effect nail tips, place the whole strip of wearable nail tips coated with magnetic paint and uncured nail polish on the tray 3, start the motor 21, drive the connecting piece 22 to rotate around its own axis, so as to drive the multiple magnets 23 fixed on the connecting piece 22, and make the multiple magnets 23 rotate around the tray 3 and the wearable nail tips in the tray 3. Thus, the mechanical method is used to replace the manual swinging of the magnetic bar to push the magnetic paint in the nail polish, so as to form a cat-eye effect. Moreover, the center of the tray 3 is located on the axis of the connecting piece 22, and the multiple magnets 23 are evenly spaced along the circumference of the connecting piece 22. This makes the multiple magnets 23 rotate around the center of the tray 3, which is beneficial to evenly push the magnetic paint in the nail polish to obtain a better cat-eye effect. In addition, the curing device 42 is integrated into the wearable nail making device 100. After the cat-eye effect is formed, close the cover 41, make the curing device 42 face the wearable nail tips in the tray 3, and cure the nail polish on the nail tips, so as to fix the formed cat-eye effect, and then complete the production of the cat-eye effect nail tips.

[0040] Further, as Figure 2 shown, to realize the fixed connection between the tray 3 and the housing 1, the tray 3 includes a tray board 31 and a connecting part 32. The connecting part 32 is arranged around the edge of the upper surface of the tray board 31 and extends upward. The connecting part 32 is fixedly connected to the outer edge of the placement opening 12, so as to place the wearable nail tips through the tray board 31. Moreover, the connecting part 32 arranged around the upper surface of the tray board 31 and extending upward can prevent the wearable nail tips from slipping off the tray board 31 and entering other positions while realizing the fixed connection between the tray board 31 and the housing 1, which affects the rotation of the connecting piece 22.

[0041] Preferably, in the vertical direction, the orthographic projection of the placement opening 12 overlaps with the orthographic projection of the inner wall of the connecting part 32, which is convenient for the processing of the shape of the placement opening 12 and the connection positioning between the connecting part 32 and the housing 1.

[0042] Further, as Figure 2As shown, to realize the connection between the cover body 41 and the curing device 42, so that when the nail wearing manufacturing device 100 is in use, the cover body 41 and the curing device 42 are integrated into one whole, facilitating the movement of the curing device 42 to cure the nail pieces; a second installation cavity 411 is formed in the cover body 41, a cover opening 412 is formed on the lower end surface of the cover body 41, the cover opening 412 communicates with the second installation cavity 411, and when the cover body 41 covers the placement opening 12, the cover opening 412 faces the tray 3 directly; the curing device 42 is arranged in the second installation cavity 411 and connected to the cover opening 412, so that when the cover body 41 covers the placement opening 12, the curing device 42 is aligned with the tray 3 to cure the nail polish on the nail pieces in the tray 3.

[0043] Preferably, as Figure 2 shown, a ventilation opening 413 is further formed on the side wall of the cover body 41, and the ventilation opening 413 communicates with the second installation cavity 411, facilitating the heat dissipation of the curing device 42 arranged in the second installation cavity 411 to ensure the normal operation of the curing device 42.

[0044] Furthermore, as Figure 2 and Figure 3 shown, to specifically realize the curing of the nail polish on the nail pieces by the curing device 42, the curing device 42 includes a mounting base 421 and a curing lamp (not shown in the figure); the mounting base 421 is connected to the cover opening 41, the lower end surface of the mounting base 421 is parallel to the lower end surface of the cover body 41, and a plurality of mounting grooves 4211 with the openings facing downwards and arranged in a matrix are formed on the mounting base 421, the openings of the mounting grooves extend to the bottom of the cover opening 412, and each of the mounting grooves 4211 is respectively provided with the curing lamp, so that the plane formed by a plurality of light sources is parallel to the plane where the nail wearing pieces are located, realizing the simultaneous curing of each nail piece and ensuring that each nail piece can obtain a consistent curing effect.

[0045] Furthermore, the area of the region where the plurality of mounting grooves 4211 are arranged in a matrix is larger than the area of the placement opening 12, realizing the coverage of the curing lamp light on the tray 3, so as to ensure that the nail pieces in the tray 3 can all be irradiated by the curing lamp.

[0046] Preferably, as Figure 2As shown, to achieve the driving of the connecting member 22 by the motor 21, the motor 21 includes a rotating shaft 211. The rotating shaft 211 is coaxially arranged with the connecting member 22 and fixedly connected to the connecting member 22. The motor 21 in this embodiment is a common motor, and other components of the motor will not be elaborated here. When the motor 21 is started, the rotating shaft 211 rotates around its own axis, thereby driving the connecting member 22 to rotate around its own axis, and further causing a plurality of magnets 23 to rotate around the tray 3.

[0047] Further, as Figure 1 shown, in this embodiment, the nail art making device 100 further includes a first switch 5 and a second switch 6. The first switch 5 is arranged on the outer surface of the housing 1 and electrically connected to the motor 21 for controlling the start and stop of the motor. The second switch 6 is arranged on the outer surface of the cover body 41 and electrically connected to the curing device 42 for controlling the start and stop of the curing device 42. By different switches, the start and stop of the motor 21 and the curing device 42 are respectively controlled, so that when pushing the magnetic powder to form a cat's eye effect and no curing is required, the curing device 42 can be shut down, and after the cat's eye effect is formed, the curing device 42 is started for curing, thus saving the production cost.

[0048] Further, as Figure 2 shown, to achieve the opening and closing of the cover body 41 for the placement opening 42, one side of the cover body 41 is connected to the housing 1 through a hinge member 7, so that the placement opening 12 can be opened or closed by flipping the cover body 41.

[0049] Preferably, as Figure 1 and Figure 2 shown, to facilitate the user to flip the cover body 41, in this embodiment, a handle 8 is fixedly provided on the surface of the cover body 41 opposite to the side where the hinge member 7 is connected.

[0050] Further, as Figure 2 and Figure 4 shown, since the magnetic field generator 2 and the tray 3 are both installed in the first installation cavity 11, to facilitate the installation and connection of the magnetic field generator 2 and the tray 3 and subsequent maintenance, the housing 1 includes a bottom plate 13, a frame 14, and a top plate 15 that are detachably connected in sequence from bottom to top. The first installation cavity 11 is jointly enclosed by the bottom plate 13, the frame 14, and the top plate 15, rather than directly using a complete housing, which is beneficial for the user to open the first installation cavity 11 by removing the top plate 15, so as to install and maintain the magnetic field generator 2, etc. The placement opening 12 is provided on the top plate 15. The tray 3 is fixedly connected to the lower surface of the top plate 15, thereby fixedly connecting the tray 3 to the inner wall of the housing 1.

[0051] Further, as Figure 4 shown, to simplify the structure of the outer shell 1 and facilitate the connection of the bottom plate 13, the frame 14, and the top plate 15, the frame 14 includes a pair of first side plates 141, a pair of second side plates 142, and four connecting columns 143 that are all vertically arranged; the pair of first side plates 141 are arranged parallel to each other, the pair of second side plates 142 are arranged parallel to each other and are disposed between the pair of first side plates 141, and the pair of first side plates 141 and the second side plates 142 together enclose a square; the four connecting columns 143 are disposed at the four right angles of the square, and the bottom of each connecting column 143 is connected to the bottom plate 14; the adjacent first side plates 141 and second side plates 142 are both connected to the connecting column 143 by fasteners; the top plate 15 is connected to the four connecting columns 143, so that the outer shell 1 is composed of common plates and columns, reducing the processing production cost and facilitating the promotion of production.

[0052] Embodiment 2

[0053] As a nail wearing device 100 according to an embodiment of the present invention, as Figure 5 shown, the difference between this embodiment and Embodiment 1 is only that: in this embodiment, a pair of parallel slide rails 9 are provided on the upper surface of the outer shell 1, and the bottom of the cover body 41 is slidably connected to the slide rails 9, so that pushing or pulling the cover body 41 can open or close the placement opening 12.

[0054] Preferably, as Figure 5 shown, to facilitate the user to push or pull the cover body 41, in this embodiment, a handle 8 is fixedly provided on the surface of the cover body 41 perpendicular to the slide rails 9.

[0055] The other structures of this embodiment are the same as those of Embodiment 1 and will not be described in detail.

[0056] The working process of the present invention is as follows: Push, pull or flip the cover body 41 to open the placement opening 12, place the whole nail wearing piece coated with nail polish glue with magnetic pigment on the tray 31, turn on the first switch 5, start the motor 21, so that a plurality of magnets 23 rotate around the nail wearing piece in the tray 3, and then push and drive the magnetic pigment in the nail polish glue to make it arranged directionally, so as to form a strong metallic spherical luster effect. After the desired cat's eye effect is formed, push, pull or flip the cover body 41 to close the placement opening 12, so that the curing device 42 is directly opposite to the nail wearing piece in the tray 3, turn on the second switch 6 and turn off the first switch 5, and make the curing device 6 start to cure the nail polish glue, thereby completing the production of the cat's eye effect nail piece.

[0057] In summary, the embodiment of the present utility model provides a nail sticker manufacturing device 100. The motor 21 in the magnetic field generator 2 drives the connecting member 22 to rotate around its own axis, so that a plurality of magnets 23 fixed on the connecting member 22 rotate around the nail stickers in the tray 3, thereby using a mechanical device to replace manual operation to push the magnetic pigments in the nail polish by the magnets, making the magnetic pigments arranged directionally, so as to form a strong metallic spherical luster effect. The curing device 42 is integrated into the nail sticker manufacturing device 100. After the cat's eye effect is formed on the nail stickers, by covering the placement opening 12 with the cover body 41, the curing device 42 is made to face the tray 3, and the curing device 42 is turned on to cure the nail polish, thus completing the manufacturing of the nail stickers with the cat's eye effect.

[0058] This device is not limited to being applied to nail stickers, and can also be applied to other handicrafts and watch accessories.

[0059] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present utility model.

Claims

1. A device for making artificial nails, characterized in that It includes a housing, a magnetic field generator, a tray and a curing component; A first installation cavity is formed inside the housing, and a placement opening is formed at the top of the housing. The placement opening communicates with the first installation cavity; The magnetic field generator includes a motor, a connecting piece and a plurality of magnets; The connecting piece is horizontally arranged in the first installation cavity. The motor is arranged in the first installation cavity and is connected to the connecting piece. The motor is used to drive the connecting piece to rotate around its own axis; the plurality of magnets are evenly spaced along the circumference of the connecting piece and are fixed to the upper surface of the connecting piece. The connecting piece and the plurality of magnets jointly enclose a magnetic field generation cavity; The tray is fixedly connected to the inner wall of the housing and is arranged in the magnetic field generation cavity. The center of the tray is located on the axis of the connecting piece; The curing component includes a cover body and a curing device. The cover body is used to open and close the placement opening. The curing device is connected to the cover body, and when the cover body covers the placement opening, the curing device faces the tray.

2. The nail art making device according to claim 1, wherein The tray includes a tray board and a connecting portion. The connecting portion is arranged around the edge of the upper surface of the tray board and extends upward. The connecting portion is fixedly connected to the outer edge of the placement opening.

3. The nail art making device according to claim 1, characterized in that, A second installation cavity is formed inside the cover body. A cover opening is formed on the lower end surface of the cover body. The cover opening communicates with the second installation cavity. When the cover body covers the placement opening, the cover opening is directly opposite to the tray; The curing device is arranged in the second installation cavity and is connected to the cover opening.

4. The nail art making device according to claim 3, characterized in that, The curing device includes a mounting seat and a curing lamp; The mounting seat is connected to the cover opening. The lower end surface of the mounting seat is parallel to the lower end surface of the cover body. A plurality of mounting grooves with the openings facing downwards and arranged in a matrix are formed on the mounting seat. The openings of the mounting grooves extend to the bottom of the cover opening, and each mounting groove is respectively installed with the curing lamp.

5. The nail art making device according to claim 4, wherein The area of the region where the plurality of mounting grooves are arranged in a matrix is larger than the area of the placement opening.

6. The nail art making device according to claim 1, characterized in that, It further includes a first switch and a second switch; The first switch is arranged on the outer surface of the housing and is electrically connected to the motor, and is used to control the start and stop of the motor; The second switch is arranged on the outer surface of the cover body and is electrically connected to the curing device, and is used to control the start and stop of the curing device.

7. The nail art making device according to claim 1, characterized in that, One side of the cover body is connected to the housing through a hinge, so that the placement opening can be opened or closed by flipping the cover body.

8. The nail art making device according to claim 1, characterized in that, A pair of parallel slide rails are arranged on the upper surface of the housing. The bottom of the cover body is slidably connected to the slide rails, so that the placement opening can be opened or closed by pushing or pulling the cover body.

9. The nail art making device according to claim 1, characterized in that The housing includes a bottom plate, a frame and a top plate that are detachably connected in sequence from bottom to top; the bottom plate, the frame and the top plate jointly enclose the first installation cavity, and the placement opening is formed on the top plate; The tray is fixedly connected to the lower surface of the top plate.

10. The nail art making device according to claim 9, characterized in that, The frame includes a pair of first side plates, a pair of second side plates and four connecting columns that are all vertically arranged; A pair of the first side plates are arranged in parallel, and a pair of the second side plates are arranged in parallel and are disposed between the pair of the first side plates. The pair of the first side plates and the second side plates together enclose a square; Four of the connecting columns are disposed at four right angles of the square, and the bottom of each connecting column is connected to the bottom plate; adjacent first side plates and second side plates are both connected to the connecting columns through fasteners; The top plate is connected to the four connecting columns.