CN110913625A

CN110913625A - Multimedia box convenient to order based on aluminum alloy section frame

Info

Publication number: CN110913625A
Application number: CN201911149097.1A
Authority: CN
Inventors: 南保成
Original assignee: Shenzhen Langyi Mechanical And Electrical Engineering Co Ltd
Current assignee: Shenzhen Langyi Mechanical And Electrical Engineering Co Ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-03-24

Abstract

The invention discloses a multimedia box based on an aluminum alloy profile frame that is easy to customize, comprising: a panel, a hinge pin, an upper hinge, a lower hinge, an upper profile, a left corner piece, a right corner piece, a dust stopper, a lower profile, Guide rail, horizontal tee, equipment clip, self-locking cable management frame profile, end face sealing plate, side sealing plate, wireless equipment, weak current equipment, strong current equipment and bottom sealing plate, composed of 4 upper profiles with cut corners at both ends The upper frame, four lower profiles with cut corners at both ends form the bottom frame, and the four lower profiles are used as four uprights. The upper frame, bottom frame and uprights are assembled into the chassis as a whole by using 4 left corner pieces and 4 right corner pieces frame, and insert the bottom cover, side cover and end cover into the corrugated U-shaped grooves of the corresponding upper and lower profiles during assembly. The present invention and the connected fasteners are installed at the trapezoidal grooves and the broken bridge openings of the profiles.

Description

Multimedia box convenient to order based on aluminum alloy section frame

Technical Field

The invention belongs to the field of electrical and communication equipment housings, and particularly relates to a multimedia box convenient to customize based on an aluminum alloy profile frame.

Background

The invention patent of invention patent application publication No. CN 104582396A publication date 2015.04.29 of Chenmo and Chenxianxiao of Chengdu ulike electric appliances Limited company discloses the invention name as standard multimedia integration box. The technical scheme of the invention is as follows: the bottom case is formed by bending, welding and spraying metal plates, the panel is made into a sealing plate by injection molding of ABS materials, and strong and weak current elements for installation of the bottom case are positioned and installed by the aid of fixing hole positions on the bottom plate and fixing installation support hole positions. The production process has the advantages that: the chassis shell is not provided with a section bar framework, holes can be punched in the hole sites for installing external elements during blanking, and the chassis shell with any shape and size can be customized according to requirements. The disadvantages are that: the lack of the framework results in insufficient strength of the bottom frame, the door panel, the mounting plate and the mounting bracket; the panel can be used for producing a product by at least two sets of injection molds under the condition that the maximum size of the box body is fixed, the production process is complex, and a large amount of waste gas and waste materials are generated in the production process, so that the environment is seriously influenced; the strong and weak electric elements of installation of under casing lean on the bottom plate fixed position hole site, the fixed mounting support hole site to fix a position the installation, and the hole site can't remove, so lead to unable reply the diversified demand of the strong and weak electric elements of internally mounted, install the locating hole and can't use at all even, can't realize flexible fixation.

An authorized bulletin number of CN 103974595A published by Wei-Tu electronic mechanical technology (Shanghai) Limited and an authorized bulletin date of 2014.05.26 disclose a cabinet frame, wherein a section in the cabinet frame is a section formed by cold rolling a carbon steel plate through cold bending, and the production process of the section generally comprises the following steps: firstly, leveling a cold rolled carbon steel plate coil stock; secondly, punching module mounting holes with standard intervals by using a continuous punching die; step three, gradually cold-bending and forming by cold-bending equipment; fourthly, cutting the steel plate into a certain length; fifthly, cutting the blank into required lengths according to requirements; and sixthly, cleaning, surface repairing, polishing, phosphorus washing, drying, protecting plug holes, electrostatic spraying, curing and drying. The section bar has the advantages that: mounting holes are formed in the sectional materials, the sectional materials can be connected in a screwing mode, a riveting mode and the like to assemble a cabinet frame, and related accessories outside the cabinet, such as door panels, side plates and the like, can be fixed and mounted on the sectional materials through the mounting holes in the sectional materials. The disadvantages are that: firstly, large-scale precise cold bending equipment is involved in the production process, one cold bending production line can only produce one section, and at least twelve bending steps are carried out, so that the requirements on the technology and the precision of the production process are high; secondly, the standard modular mounting holes are equidistant, so that elements and related accessories cannot be mounted or fixed in the space between the standard modular mounting holes and the holes, and the flexible assembly in the true sense cannot be completed; thirdly, the door plate, the side plate and the external related accessories of the door plate and the side plate are required to be punched to correspond to the standard modular hole site in the section bar, and the door plate, the side plate and the external related accessories are required to be matched well, so that the difficulty coefficient related to the precision in the production process is increased; fourthly, the bending radius of the bending part of the cold-bending section bar, and the bolt connection and riveting holes of the section bar, an external door panel, a side plate and external related accessories all increase the difficulty coefficient for solving the problem of protection grade; fifthly, the sectional area of the sectional material is large due to the thickness and the bending radius of the sectional material, and the sectional material can be used only in a large cabinet.

According to the search, no small cabinet with a sectional material frame structure assembly type is found in the market at present.

Disclosure of Invention

The invention aims to provide a multimedia box convenient to order based on an aluminum alloy section frame, which solves the problem that the prior art does not have a small box with a frame structure assembled.

In order to solve the technical problems, the invention adopts the technical scheme that:

a multimedia box based on aluminum alloy section bar frame is convenient for to order, includes: the device comprises a face panel, a hinge pin, an upper hinge, a lower hinge, an upper section bar, a left corner piece, a right corner piece, a dustproof baffle, a lower section bar, a guide rail, a horizontal tee piece, a device clamp, a self-locking wire arranging frame section bar, an end face sealing plate, a side sealing plate, a wireless device, a weak current device, a strong current device and a bottom sealing plate.

Go up hinge, lower hinge, upper portion section bar, lower part section bar, guide rail and be the irregular aluminum alloy section bar of aluminum alloy material extrusion's cross sectional shape, the irregular section bar of cross sectional shape has increased the antitorque intensity of section bar itself, and can assemble after cutting according to the arbitrary length of the actual size of quick-witted case, be convenient for non-standard to make and batch scale volume production.

The upper section bar is an aluminum alloy section bar which is formed by extrusion of aluminum alloy materials, has an irregular cross section shape and is provided with a trapezoidal groove and a bridge cut-off opening, and sequentially comprises a display surface, two fold surfaces, four bridge cut-off surfaces, a floor surface and an inner surface in the upper section bar, wherein the two fold surfaces which are parallel to each other form a U-shaped groove, the two bridge cut-off surfaces on the same plane form a bridge cut-off opening, the four bridge cut-off surfaces form two bridge cut-off openings together, and the two bridge cut-off openings are inwards provided with two trapezoidal grooves.

The lower section bar is an aluminum alloy section bar which is formed by extrusion of aluminum alloy materials, has an irregular cross section shape and is provided with a trapezoidal groove and a bridge cut-off opening, and sequentially comprises two display surfaces, four fold surfaces, two bridge cut-off surfaces and an inner surface, wherein the two parallel fold surfaces form a U-shaped groove, the four fold surfaces form two U-shaped grooves in a conformal manner, the two bridge cut-off surfaces on one plane form a bridge cut-off opening, and the two trapezoidal grooves are formed inwards at the bridge cut-off opening.

The upper frame is assembled by 4 upper section bars with 45-degree angle cut at both ends and two left corner pieces and two right corner pieces.

The bottom frame is assembled from 4 lower profiles cut at 45 degrees at both ends using two left corner pieces and two right corner pieces.

4 the lower part section bar as stand with the vertical angle assembly of the left and right corner fittings of bottom frame, and will bottom shrouding, side shrouding and terminal surface shrouding insert the U type inslot of taking the fold of corresponding lower part section bar in the assembling process, just bottom shrouding, side shrouding and terminal surface shrouding need not to bend and weld.

Furthermore, the vertical angles of the left and right corner pieces of the upper frame are connected with the upright posts to form a case integral frame, and the plurality of equipment mounting frames, the plurality of wire arranging frames, the plurality of wireless equipment and the strong and weak electric equipment are mounted on the vertical surface and the bottom of the inside of the multimedia box through a bridge cut and a trapezoid groove in a case frame profile according to requirements.

The lower hinge is internally provided with two opening circles with different sizes, the large opening circle is used for the hinge pin to pass through, and the small opening circle is tapped at one side outside to place and fix the marble.

The side surface of the upper hinge is provided with two straight notches for positioning marbles of the lower hinge when the door is opened and closed.

Furthermore, the marble is formed by connecting one end of a spring with a semi-sphere and inserting the other end of the spring into a small opening circle through the outer end of the lower hinge during assembly, screwing a flat-head screw into the small opening circle, and adjusting the screwing depth of the screw according to requirements.

The panel is adhered to the upper hinge by structural adhesive and is fixed on the upper frame after being connected with the lower hinge through the hinge pin, and the integral assembly of the case is completed. The panel is provided with a strip waist hole for the antenna of the wireless device to penetrate out of the box body.

The upper section, the lower section and the guide rail do not need secondary drilling, tapping and other processing except cutting and corner cutting, a bridge cut-off opening in the section is used for a screw to pass through, a trapezoidal groove is used for a nut to be placed, and connection with other related parts is completed through the bridge cut-off opening and the trapezoidal groove.

Furthermore, the trapezoidal grooves of the upper section bar and the lower section bar are used for placing and hiding the fasteners and can move at any position in the length direction of the trapezoidal grooves, so that the purpose of flexibly adjusting the fixed position is realized.

The U-shaped fold grooves of the upper section bar and the lower section bar are filled with structural adhesive or are additionally provided with waterproof sealing strips in the assembling process, so that IP-level sealing is achieved, and the waterproof and dustproof performance is good, so that the formed case is used under the condition of extremely poor environment, and good protective performance can be provided for elements and equipment arranged inside the case.

Furthermore, the corrugated surfaces in the upper section bar and the lower section bar are provided with a plurality of barb corrugations with inward openings, so that the outer sealing plate and the waterproof sealing piece can be prevented from moving outwards, and the moving resistance of the outer sealing plate and the waterproof sealing piece is increased.

By adopting the structure and the technology, compared with the prior art, the invention has the following beneficial effects:

compared with the prior art that blanking, bending and welding processes are needed for a bottom frame, a door panel, a mounting plate and a mounting support, punching, bending and welding are not needed for all the sealing plates, the sealing plates are directly inserted into chamfered anti-skidding U-shaped grooves of a section bar and filled with structural adhesive, the connection between the frames of the invention is realized by corner piece accessories, the sealing plates are firmly supported on the section bar from inside to outside by sealing plate fasteners, and all the accessories are fixed on trapezoidal grooves in the section bar.

Compared with the prior art that blanking, bending and welding processes are needed for the bottom frame, the door plate, the mounting plate and the mounting bracket, the invention belongs to product customization and can not be produced in standardized batches. The invention can accurately cut the section bars with corresponding sizes according to the size of the case sealing plate, and then the section bars and the sealing plate are assembled into the case through a plurality of simple fasteners, thereby achieving the effect of both batch production and customized small-scale production.

Compared with the cold rolled carbon steel plate cold bending section frame structure in the prior art, the fixed piece and the element of the cold rolled carbon steel plate cold bending section frame structure are arranged on the standard module mounting hole. All the installation fixing pieces are arranged on the trapezoidal grooves and the broken bridge openings in the related sectional materials, punching is not needed, and the installation positions of the fasteners and related accessories can be flexibly adjusted at will according to needs. The related section bar does not need any working procedures such as drilling, hole tapping and the like after cutting and blanking, is good in protection to the section bar, and has the advantages of few processing working procedures, simple processing technology, less pollution generated in the processing process and short production period.

The multi-media weak current box solves the problems of heat dissipation, WIFE and related signal blockage of the traditional multi-media weak current box, a waist hole is formed in the side face of a door plate, a dustproof brush is additionally arranged in the waist hole from the box body, an antenna can extend out of the box body through the waist hole, and signals and heat can be conducted out of the box body through the waist hole.

The aluminum alloy self-locking type wire arranging frame section bar in the multimedia weak current box overcomes the defect that a traditional U-shaped wire arranging device cannot accurately fix a cable, realizes a single wire and a single groove, and enables the cable in the formed multimedia weak current box to be horizontal, vertical and attractive.

Compared with the cold rolled carbon steel plate cold-bending section frame structure in the prior art, the thickness, the bending radius and the die of the cold-bending section material limit the size of the section, the group of the frame is formed by extrusion molding of aluminum alloy, the limitation of the thickness and the bending radius of the material is avoided, and the required shape and size can be extruded at will, so that the section of the group of the frame is smaller; furthermore, the density of the aluminum alloy is usually 2.7g/cm in dry-rolled carbon steel plate for cold-rolled section bars is usually 7.9g/cm in dry-rolled carbon steel plate for thin-wall high-strength.

And seventhly, the composition material of the framework is aluminum alloy, and the aluminum alloy has the characteristics of corrosion resistance, pollution resistance, oxidation resistance and the like, can be simply treated, recycled and is more environment-friendly.

Eighthly, the group of the frame does not need any processing procedure except for cutting length, the trapezoidal groove and the broken bridge opening in the group of the frame are connected and fastened with the outside through the fastening piece, the fastening piece is small in size, the processing is more convenient, the cost is lower than that of the whole section, and the precision can be better guaranteed.

The aluminum alloy profile is structurally spliced and formed through aluminum alloy profiles, semi-finished products in factories can be machined, finished products can be assembled on site, the repairing effect can be achieved by only replacing parts when the parts are damaged in the using process, the aluminum alloy profile is made of aluminum alloy, the weight is lighter, and the logistics cost is greatly reduced.

Drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a cross-sectional view of an upper hinge section according to the present invention;

FIG. 3 is a cross-sectional view of a lower hinge profile according to the present invention;

FIG. 4 is an exploded view of the hinge assembly according to the present invention;

FIG. 5 is an exploded view of the panel of the present invention;

FIG. 6 is an assembled view of the panel of the present invention;

FIG. 7 is a cross-sectional view of an upper section to which the present invention relates;

FIG. 8 is an assembled view of a left corner fitting according to the present invention;

FIG. 9 is an assembled view of the right corner fitting of the present invention;

FIG. 10 is a view showing a dust guard according to the present invention;

FIG. 11 is an exploded view of the upper frame of the present invention;

FIG. 12 is an assembled view of the upper frame of the present invention;

FIG. 13 is a cross-sectional view of a lower section to which the present invention relates;

FIG. 14 is an exploded view of the bottom frame of the present invention;

FIG. 15 is an assembled view of the bottom frame of the present invention;

FIG. 16 is a cross-sectional view of a guide rail according to the present invention;

FIG. 17 is an assembly view of a horizontal tee of the present invention;

FIG. 18 is an assembled profile view of the equipment mount of the present invention;

FIG. 19 is a sectional view of the self-locking wire arranging frame section bar according to the present invention;

FIG. 20 is an assembled view of the wire arranging frame according to the present invention;

FIG. 21 is an exploded view of the lower frame of the present invention assembled with the closure and bracket members;

FIG. 22 is an assembled view of the lower frame, the sealing plate and the bracket of the present invention;

FIG. 23 is an exploded view of the unitary frame assembly of the present invention;

FIG. 24 is an assembled view of the integral frame of the present invention;

fig. 25 is a view of the complete assembly of the present invention.

Wherein: 1. a panel; 2. a hinge pin; 3. mounting a hinge; 4. a lower hinge; 5. an upper section bar; 6. a left corner fitting; 7. a right corner piece; 8. a dustproof block; 9. a lower section bar; 10. a guide rail; 11. a horizontal tee member; 12. a device clamp; 13. self-locking type wire arranging frame section bars; 14. an end face seal plate; 15. a side sealing plate; 16. a wireless device; 17. a weak current device; 18. a strong electric device; 19. and a bottom closing plate.

Detailed Description

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

Examples

As shown in fig. 1, a multimedia box convenient for customization based on an aluminum alloy profile frame comprises: the device comprises a face panel 1, a hinge pin 2, an upper hinge 3, a lower hinge 4, an upper section bar 5, a left corner fitting 6, a right corner fitting 7, a dustproof baffle 8, a lower section bar 9, a guide rail 10, a horizontal three-way fitting 11, a device clamp 12, a self-locking wire arranging frame section bar 13, an end face sealing plate 14, a side sealing plate 15, a wireless device 16, a weak current device 17, a strong current device 18 and a bottom sealing plate 19.

Furthermore, the upper hinge 3, the lower hinge 4, the upper section bar 5, the lower section bar 9 and the guide rail 10 are aluminum alloy section bars with irregular cross sections formed by extrusion molding of aluminum alloy materials, the section bars with irregular cross sections increase the twisting resistance of the section bars, and can be assembled after being cut according to the actual size of the case and any length, so that nonstandard production and batch large-scale production are facilitated.

As shown in fig. 7, the upper section is an aluminum alloy section with an irregular cross section and a trapezoidal groove and a bridge cut-off opening, which is formed by extrusion molding of an aluminum alloy material, and the interior of the aluminum alloy section sequentially comprises a display surface, two corrugated surfaces, four bridge cut-off surfaces, a floor surface and an inner surface, wherein the two mutually parallel corrugated surfaces form a U-shaped groove, the two bridge cut-off surfaces on a plane form a bridge cut-off opening, the four bridge cut-off surfaces form two bridge cut-off openings, and the two bridge cut-off openings are internally provided with two trapezoidal grooves.

As shown in fig. 13, the lower section is an aluminum alloy section with an irregular cross section and a trapezoidal groove and a bridge cut-off opening, which is formed by extrusion molding of an aluminum alloy material, and the interior of the aluminum alloy section sequentially comprises two display surfaces, four corrugated surfaces, two bridge cut-off surfaces and an inner surface, wherein the two mutually parallel corrugated surfaces form a U-shaped groove, the four corrugated surfaces form two U-shaped grooves, the two bridge cut-off surfaces on one plane form a bridge cut-off opening, and the bridge cut-off opening is internally provided with two trapezoidal grooves.

As shown in fig. 11, 4 upper section bars 5 with 45-degree angle cut at both ends are assembled into an upper frame as shown in fig. 12 by using two left corner pieces 6 and two right corner pieces 7, and the left and right corner pieces are fixed on the bridge cut and the trapezoidal groove of the upper section bars.

As shown in fig. 14, the bottom frame shown in fig. 15 is assembled by 4 lower section bars 9 with 45-degree angle cut at both ends, using two left corner pieces 6 and two right corner pieces 7, which are fixed on the bridge cut and the trapezoidal groove in the lower section bars.

As shown in fig. 21, 4 lower section bars 9 are assembled as vertical columns with the vertical corners of the left and right corner fittings of the bottom frame, and the bottom sealing plates, the side sealing plates and the end surface sealing plates are inserted into the folded U-shaped grooves of the corresponding lower section bars during the assembly process, and the bottom sealing plates, the side sealing plates and the end surface sealing plates do not need to be bent or welded.

Further, as shown in fig. 23, the vertical angles of the left and right corner pieces of the upper frame are connected with the vertical columns to form an integral frame of the chassis, and the plurality of equipment mounting frames, the plurality of wire management frames, the plurality of wireless equipment and the strong and weak electric equipment are mounted on the vertical surface and the bottom of the inside of the multimedia box through the bridge cut and the trapezoidal groove in the chassis frame profile as required.

As shown in fig. 3, two opening circles with different sizes are arranged in the lower hinge 4, the hinge pin 2 can pass through the large opening circle, and the small opening circle is tapped at the outer side to place and fix the marble.

As shown in fig. 2, two straight notches are formed in the side surface of the upper hinge for positioning the balls of the lower hinge when the door is opened and closed.

Furthermore, as shown in fig. 4, one end of the marble is connected with the semi-sphere through a spring, the other end of the marble is a flat head screw, the marble is inserted into the small opening circle from the outer end of the lower hinge during assembly, the flat head screw is screwed into the small opening circle, and the screwing depth of the screw is adjusted according to needs.

As shown in fig. 5, the panel 1 and the upper hinge 3 are adhered by structural adhesive, and the lower hinge 4 is connected by the hinge pin 2 and then fixed on the upper frame, thereby completing the integral assembly of the chassis. The panel is provided with a strip waist hole for the antenna of the wireless device to penetrate out of the box body.

Claims

1. The utility model provides a multimedia box convenient to order based on aluminum alloy section bar frame which characterized in that: comprises a panel, a hinge pin, an upper hinge, a lower hinge, an upper section bar, a left corner piece, a right corner piece, a dustproof baffle, a lower section bar, a guide rail, a horizontal tee piece, an equipment clamp, a self-locking wire arranging frame section bar, an end face sealing plate, a side sealing plate, a wireless equipment, a weak current equipment, a strong current equipment and a bottom sealing plate, wherein an upper frame is formed by 4 upper section bars with cut corners at two ends, a bottom frame is formed by 4 lower section bars with cut corners at two ends, and the 4 lower section bars are used as four upright posts, the upper frame, the bottom frame and the upright post are assembled into a whole frame of the case by utilizing 4 left corner pieces and 4 right corner pieces, and in the assembling process, the bottom seal plate, the side seal plates and the end face seal plate are inserted into the U-shaped grooves with folds of the corresponding upper section bar and the lower section bar, the panel is adhered to the upper hinge by structural adhesive and then is assembled with the lower hinge and then is connected with the integral frame of the case by a hinge pin.

2. The multimedia box convenient to order based on the aluminum alloy section frame according to claim 1, wherein the upper hinge, the lower hinge, the upper section, the lower section and the guide rail are all aluminum alloy sections, and can be assembled after being cut according to the actual size and any length of the chassis.

3. The multimedia box convenient to order based on the aluminum alloy profile frame as claimed in claim 1, wherein the upper section is an aluminum alloy profile extruded from an aluminum alloy material and having an irregular cross section and a trapezoidal groove and a bridge cut-off opening, the inside of the aluminum alloy profile comprises a display surface, two corrugated surfaces, four bridge cut-off surfaces, a floor surface and an inner surface in sequence, the two corrugated surfaces parallel to each other in the base form a U-shaped groove, the two bridge cut-off surfaces on a plane form a bridge cut-off opening, the four bridge cut-off surfaces form two bridge cut-off openings, and the two bridge cut-off openings have two trapezoidal grooves inwards.

4. The multimedia box convenient to customize based on the aluminum alloy profile frame as claimed in claim 1, wherein the lower section is an aluminum alloy profile extruded from an aluminum alloy material and having an irregular cross section with a trapezoidal groove and a bridge cut-off, and the inside of the aluminum alloy profile comprises two display surfaces, four corrugated surfaces, two bridge cut-off surfaces and an inner surface in sequence, wherein the two corrugated surfaces parallel to each other form a U-shaped groove, the four corrugated surfaces form two U-shaped grooves, the two bridge cut-off surfaces on one plane form a bridge cut-off, and the bridge cut-off has two trapezoidal grooves inward.

5. The multimedia box convenient for customization based on aluminum alloy profile frame according to claim 1, wherein the 4 upper profiles cut at 45 degree angle at both ends are assembled into the upper frame using two left corner pieces and two right corner pieces.

6. The multimedia box convenient to customize and based on the aluminum alloy section frame as claimed in claim 1, wherein the panel is fixed on the upper frame after being connected with the lower hinge through a hinge pin by a structural adhesive, and the panel is provided with a long strip-shaped waist hole for the antenna of the wireless device to penetrate out of the box body.

7. The multimedia box based on aluminum alloy profile frame for customization, as recited in claim 1, wherein the 4 lower profiles cut at 45 degree angle at both ends are assembled into the bottom frame using two left corner pieces and two right corner pieces.

8. The multimedia box convenient to customize based on the aluminum alloy profile frame of claim 1, wherein the dustproof baffle is used for the wireless device antenna to extend out of the box body through the waist hole on the panel, and the dustproof baffle is fixed on the upper frame from the inside.

9. The multimedia box convenient to order based on the aluminum alloy profile frame as claimed in claim 1, wherein the 4 lower profiles are assembled as vertical corners of vertical columns and left and right corner fittings of the upper frame and the bottom frame, meanwhile, an equipment mounting rack, a wire arranging rack, wireless equipment and strong and weak current equipment are installed on the vertical surface and the bottom inside the multimedia box through the bridge cut-off openings and the trapezoidal grooves of the upper profile and the lower profile to form a whole frame of the chassis, and in the assembling process, the bottom sealing plates, the side sealing plates and the end surface sealing plates are inserted into the U-shaped grooves with folds of the corresponding upper profile and the lower profile, and the bottom sealing plates, the side sealing plates and the end surface sealing plates do not need to be bent or welded.

10. The multimedia box convenient to order based on the aluminum alloy section frame as claimed in claim 1, wherein the lower hinge is internally provided with two opening circles with different sizes, the large opening circle is used for a hinge pin to pass through, and the small opening circle is tapped at one side outside to be placed and fixed with a marble.

11. The multimedia box convenient to customize and based on the aluminum alloy section frame as claimed in claim 1, wherein the side of the upper hinge is provided with two straight notches for positioning marbles of the lower hinge when the door is opened and closed.

12. The multimedia box convenient to order based on the aluminum alloy profile frame as claimed in claim 1, wherein the U-shaped corrugated grooves of the upper and lower profiles are filled with structural glue or added with waterproof sealing strips during the assembly process.

13. The multimedia box convenient for customization based on the aluminum alloy section frame as claimed in claims 3 and 4, wherein the bridge cut-off openings in the upper section bar and the lower section bar are used for the passing of screws, and the trapezoidal groove is used for the placement of nuts, and the connection with other related components is completed through the bridge cut-off openings and the trapezoidal groove.