CN107342021B

CN107342021B - Outdoor LED display screen

Info

Publication number: CN107342021B
Application number: CN201710625767.7A
Authority: CN
Inventors: 谭建宇; 傅高鹏; 周杰; 刘光喜
Original assignee: Hunan Minghe Opto Tech Co ltd
Current assignee: Hunan Minghe Opto Tech Co ltd
Priority date: 2017-07-27
Filing date: 2017-07-27
Publication date: 2022-12-30
Anticipated expiration: 2037-07-27
Also published as: CN107342021A

Abstract

The invention discloses an outdoor LED display screen which comprises a frame, a main body panel arranged on the frame, an LED module and a back plate, wherein the LED module and the back plate are fixed on the main body panel; the back plate comprises a back plate panel and a back plate side plate. The frame is provided with the first cavity and the second cavity which are used as main ribs for supporting the LED module, corners between the frames are connected through wrap angles, the second cavity is internally provided with the screw hole sheath for conveniently riveting a first screw forwards from the rear end of the display screen to fix the LED module, the frame is internally provided with the backboard mounting groove, the backboard is embedded and recessed at the rear end of the frame, the edge of the backboard mounting groove is provided with the waterproof strip and then covers the backboard, and compared with the existing display screen waterproof strip which is arranged outside the frame and is easy to cool, shrink, deform and deform, the waterproof effect is poor.

Description

Outdoor LED display screen

Technical Field

The invention relates to the technical field of display screens, in particular to an outdoor LED display screen.

Background

The advertisement machine, also called poster machine, is a new generation of intelligent playing equipment, can be controlled by terminal software, can make information transmission and multimedia terminal display to form a complete advertisement playing control system, and can make advertisement propaganda by means of multimedia materials of picture, characters, video, weather and news, etc. The advertisement machine can be divided into an LCD advertisement machine and an LED advertisement machine according to the material of the display screen body; according to different application environments and purposes, the system can be divided into a building advertising machine, a vehicle-mounted advertising machine, an indoor advertising machine, an outdoor advertising machine and the like. With the development of society, the application of LED display screens is wider and wider, and the LED display screens are also applied to outdoor advertising machines more and more.

The existing outdoor LED display screen generally has the following problems:

1. the frame and the main body panel of the existing LED advertising machine are usually made of iron plates, the rear cover is also made of steel plates, the weight is too heavy, the rear cover protrudes out of the frame, rainwater easily permeates into the advertising machine from the edge of the rear cover, the waterproofness is poor, most of the existing advertising machines on the market can only be used in indoor or semi-outdoor environments, the reason is that the whole outdoor environment is too severe, the advertising machine is subjected to rain, wind and sunshine, and the advertising machine must be in the outdoor environment all the year round, so the existing advertising machine can not meet the rain-proof requirement, and the L-shaped corner connector structure adopted at the corner of the frame is easy to loosen to damage in windy weather, and the service life is short;

2. because the body is heavy and the installation and the transportation are inconvenient, two persons are required to cooperate to complete the installation, the single operation of one person cannot be realized, and the installation efficiency is greatly reduced;

3. the LED module of current LED display screen is usually passed through the screw fixation by the front end on the frame, and is not only pleasing to the eye, need fix the back with the drain pan of LED module earlier, assembles other parts of LED module again, and the installation is troublesome, and glass also will be cartridge earlier about in the trilateral frame back down, installs the frame at top again, can't realize alone operation alone, and the installation effectiveness is low, and it is all inconvenient to use the maintenance.

Based on the above problems, there is a need to research and develop a light-weight, high-strength box body, convenient installation, use and maintenance, and beautiful appearance of all outdoor LED advertisement machines.

Patent application No. 201320626971.8 discloses an outdoor LED display screen box, and this display screen box includes the aluminium alloy frame, and aluminum plate bending forming main part panel, main part panel riveting are fixed on the aluminium alloy frame, and the lid is less than the indent formula structure of aluminium alloy frame surface for the surface behind the aluminum plate. Although this scheme has adopted the aluminium alloy frame to make and has alleviateed box weight, the lid industry adopts aluminum plate preparation behind the aluminum plate and be the indent formula design, has certain waterproof performance. However, the waterproof strip is sleeved outside the aluminum profile frame, and due to the fact that outdoor weather is severe, the waterproof strip is prone to cold and hot deformation, and the waterproof effect cannot meet all-weather outdoor use requirements.

Patent document 201020276813.0 discloses an aluminum frame for a single-face LED bar-shaped display screen, and the aluminum frame comprises a plurality of frames, wherein two adjacent frames are connected through corner type plugs, screw locking grooves used for fixing a module and a back plate are respectively arranged in front of and behind the frames, and the notches face the outside of the display screen. The screw locking groove of the aluminum frame for fixing the module can only lock screws into the frame from the outside of the display screen, so that the appearance is not attractive, the module is only fixed at the part matched with the frame, the connection is not firm, and the strength of the box body is low; the cable is easy to damage under outdoor conditions and has short service life; the matched part of the back plate and the vertical positioning surface of the back plate is easy to enter water, and the waterproof performance is poor; the frame is enclosed and assembled after the glass is installed, so that the installation is inconvenient and the structural strength is poor.

Disclosure of Invention

The invention mainly aims to provide an outdoor LED display screen, and aims to solve the problems that an existing outdoor LED display screen is inconvenient to mount, low in structural strength and poor in waterproofness.

In order to achieve the purpose, the outdoor LED display screen provided by the invention comprises a frame, a main body panel arranged on the frame, an LED module fixed on the main body panel and a back panel,

the frame includes:

a peripheral plate having an outwardly arched portion;

the middle coaming plate surrounds the edge of the LED module, the front end and the rear end of the middle coaming plate are connected with the peripheral plate, a connecting plate is connected between the middle coaming plate and the arched part, and the front part of the middle coaming plate, the connecting plate and the peripheral plate are encircled to form a first cavity;

the inner coaming surrounds the edge of the back plate and is parallel to the middle coaming;

the front end plate and the rear end plate are vertically connected between the middle surrounding plate and the inner surrounding plate, the front end plate, the rear end plate, the middle surrounding plate and the outer surrounding plate are surrounded to form a second cavity, a plurality of screw hole sheaths are arranged in the second cavity, the front ends of the screw hole sheaths are provided with first through holes and rear end openings, and the main body panel is fixed on the front end plate;

the backboard installing groove is characterized in that a bottom board of the backboard installing groove is vertically formed on the inner surrounding board, the backboard installing groove also comprises a side surrounding board which is parallel to the inner surrounding board, and a waterproof strip is fixedly fastened on the side surrounding board;

the wrap angle is provided with two groups of plugs which are connected with each other, each group of plugs comprises a first plug part and a second plug part, and the first plug part and the second plug part are respectively matched and connected with the first cavity and the second cavity;

the back plate includes:

the backboard panel is abutted with the waterproof strip;

the back plate side plate extends forwards along the edge of the back plate panel and is fixedly inserted in the back plate mounting groove;

the LED module comprises a bottom shell, a screw hole is formed in the rear end face of the bottom shell, a first screw extends into the screw hole sheath, and the first screw penetrates through a first through hole and a main body panel in sequence to fix the bottom shell.

Preferably, a pressure riveting nut column a is fixed in the back plate mounting groove, a second through hole is formed in the edge of the back plate panel, and the back plate panel sequentially penetrates through the second through hole, the first through hole and the main body panel through screws and is fixed on the pressure riveting nut column a.

Preferably, two sets of end cap mutually perpendicular, four frame end to end connection constitutes the rectangle, still is connected with the limit that separates of an at least horizontal setting between the frame of two vertical settings, it includes the strip shaped plate and follows to separate the limit the curb plate of two long limits backward extensions of strip shaped plate, the curb plate adjacent with this curb plate and the opposite side board of another baffle relative with this curb plate enclose synthetic rectangle frame, perhaps, the curb plate adjacent with this curb plate the curb plate of two frames and the opposite side bounding wall of the frame relative with this curb plate enclose synthetic rectangle frame, waterproof strip for with the integrated into one piece's of rectangle frame adaptation rectangle, the backplate with the rectangle frame lock.

Preferably, a rivet pressing nut column B is fixed on the strip-shaped plate, a third through hole is formed in the edge of the back plate panel, and the back plate panel penetrates through the third through hole through a third screw and is fixed on the rivet pressing nut column B.

Preferably, the side enclosing plate comprises an upper back plate side plate and a lower back plate side plate, and in the two adjacent back plates up and down, the back plate positioned below: the front end of the upper backboard side plate extends upwards vertically to form a sealing plate, and the sealing plate is blocked between the lower backboard side plate of the backboard above and the strip-shaped plate.

Preferably, the main body panel is in a grid shape formed integrally and comprises a plurality of transverse ribs and vertical ribs.

Preferably, the main body panel is provided with a transverse reinforcing rib, and two ends of the transverse reinforcing rib are fixed on the frame.

Preferably, the frame is an aluminum profile frame, and the main body panel and the back plate are made of aluminum plates.

Preferably, a handle is fixed on the rear end face of the frame.

Preferably, a main control card, a secondary control card, a power conversion module, a GPS positioning module, and a 3G wireless router connected to the LED module are fixed on the main panel.

Compared with the prior art, the technical scheme of the invention has the beneficial effects that:

1. the frame is provided with the first cavity and the second cavity as main ribs for supporting the LED module, corners between the frames are connected through wrap angles matched with the first cavity and the second cavity, the front end plate where the second cavity is located is used for fixing the LED module in a front-back mode, the middle surrounding plate where the first cavity is located surrounds the edge of the LED module, the LED module is combined with the integrally formed main body panel and is stably embedded in the frame, and the LED module is high in structural strength and attractive in appearance.

2. According to the invention, the screw hole sheath is arranged in the second cavity of the frame, and is used for conveniently riveting a first screw from the rear end of the display screen to the front to fix the LED module.

3. The waterproof strip is internally arranged, so that the structure is attractive, and the waterproof effect is good.

4. When the LED display screen is installed, the LED modules are firstly installed, and then the back plates are fastened and fixed from the back, the number of the back plates can be set according to the size strength requirement of the display screen, the installation is convenient, and the integral structure is attractive and elegant.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a perspective view of an outdoor LED display screen according to an embodiment of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is an exploded view of the bezel and body panel of FIG. 2;

fig. 4 is a perspective view of another viewing angle of the outdoor LED display screen proposed in fig. 1;

FIG. 5 is an exploded view of FIG. 4;

FIG. 6 is a block diagram of the bezel and body panel of FIG. 5;

FIG. 7 is an enlarged view of a portion of FIG. 3 at A;

FIG. 8 is a block diagram of the wrap angle of FIG. 3;

FIG. 9 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 10 is a cross-sectional view taken at C-C of FIG. 1;

FIG. 11 is an enlarged view of a portion of FIG. 9 at D;

FIG. 12 is an enlarged view of a portion of FIG. 10 at E;

FIG. 13 is an enlarged view of a portion of FIG. 5 at F;

fig. 14 is a partial enlarged view at G in fig. 5.

Description of the figures of the invention:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of the technical solutions by those skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an outdoor LED display screen.

Referring to fig. 1 to 14, the outdoor LED display screen includes a frame 1, a main body panel 2 mounted on the frame 1, an LED module 4 fixed on the main body panel 2, and a back panel 3,

the frame 1 includes:

a peripheral plate 11 having an outwardly arched portion 111;

the middle surrounding plate 12 surrounds the edge of the LED module 4, the front end and the rear end of the middle surrounding plate are connected with the peripheral plate 11, a connecting plate 112 is connected between the middle surrounding plate 12 and the arched part 111, and the front part of the peripheral plate 11, the connecting plate 112 and the front part of the middle surrounding plate 12 surround to form a first cavity 16;

an inner surrounding plate 13 surrounding the edge of the back plate 3 and parallel to the middle surrounding plate 12;

the front end plate 14 and the rear end plate 15 are vertically connected between the middle enclosing plate 12 and the inner enclosing plate 13, the front end plate 14, the rear end plate 15, the middle enclosing plate 12 and the outer enclosing plate 13 are enclosed to form a second cavity 17, a plurality of screw hole sheaths 171 are arranged in the second cavity 17, a first through hole and a rear end opening are formed in the front end of each screw hole sheath 171, and the main body panel 2 is fixed on the front end plate 14;

the backboard installing groove 18 is characterized in that a bottom plate 181 is vertically formed on the inner coaming 13, the backboard installing groove further comprises a side coaming 182 parallel to the inner coaming 13, and a waterproof strip 183 is fastened on the side coaming 182;

the wrap angle 19 is provided with two groups of plugs which are connected with each other, each group of plugs comprises a first plug part 191 and a second plug part 192, and the first plug part 191 and the second plug part 192 are respectively matched and connected with the first cavity 16 and the second cavity 17;

the back plate 3 includes:

a backboard face plate 31 abutting against the waterproof strip 183,

a back plate side plate 32 extending forward along the edge of the back plate panel 31 and fixedly inserted into the back plate mounting groove 18;

the LED module 4 includes a bottom case 41, a screw hole 42 is formed at the rear end of the bottom case 41, and a first screw 43 extends into the screw hole sheath 171 and sequentially passes through the first through hole and the main body panel 2 to fix the bottom case 41.

The structure installation principle of the invention is as follows:

1. in the embodiment, an upper frame 1, a lower frame 1, a left frame 1, a right frame 1 are connected through a wrap angle 19 to form a rectangular frame structure, a middle surrounding plate 12 and a front end plate 14 of each frame 1 form a module mounting part of an LED module 4, a first cavity 16 is arranged outside the middle surrounding plate 12 to well wrap the periphery of the LED module 4, the appearance is attractive, a second cavity 17 is arranged behind the front end plate 14 to fix the LED module 4, and the first cavity 16 and the second cavity 17 are connected and fixed with a first plug part 191 and a second plug part 192 of the wrap angle 19 at corners, so that the frames 1 are surrounded into a whole through the wrap angle 19, compared with the prior art that the four corners of the frames of a display screen box body are generally connected by adopting L-shaped corner wrap angles 19, the invention adopts the corner-type wrap angles 19 to connect, and a peripheral plate 11 is arranged between the first cavity 16 and the second cavity 17 at a main stress part to reinforce, so that the whole display screen is stressed firmly and stable;

2. after the frames 1 are enclosed into a whole, the edge of the back of the main body panel 2 is fixed on the front end plate 14 through screws; waterproof glue is filled in gaps between the back surface of the main body panel 2 and the front end plate 14 and between the frame 1 and the wrap angle 19 so as to increase the waterproof effect;

3. the whole LED module 4 is arranged at the module installation part of the frame 1, the rear end face of a bottom shell 41 of the LED module 4 is provided with screw holes 42, a plurality of screw hole sheaths 171 are arranged in the second cavity 17, the rear end of the second cavity is directly communicated with an opening, and the front end of the second cavity is provided with a small first through hole communicated with the screw holes 42, so that the fixed installation of the LED module 4 is operated by the rear end of the display screen, a first screw 43 sequentially penetrates through the first through hole and the opening on the main body panel 2 to be riveted into the screw holes 42, and the LED module 4 is fixed with the frame 1 and the main body panel 2 at the same time, so that the structure is stable and firm, compared with the existing LED module of the display screen, the appearance is influenced by the front end through screw fixation, the LED module is required to be installed on a part of the frame first and then the rest of the frame is enclosed, and the installation is inconvenient;

4. the waterproof strip 183 is fastened on the innermost side wall plate 182 of the frame 1, the waterproof strip 183 is fastened on the side wall plate 182 firstly during installation, the back plate 3 is mounted, the back plate 3 is pressed on the waterproof strip 183, the waterproof strip is usually arranged outside the frame relative to the existing display screen, the waterproof strip is not attractive, rainwater is easy to accumulate in a gap between the back cover and the frame, meanwhile, the waterproof strip is arranged at the outermost end and is easy to deform due to cold and heat, the waterproof effect is poor, and the strength of the box body is low.

Therefore, the frame 1 of the invention has high connecting strength, can be installed by one person, is convenient to operate, and the back plate 3 is inwards concave in the frame, the waterproof strip 183 is also internally arranged, and has good sealing performance.

Further, a rivet nut post a184 is fixed in the backboard mounting groove 18, a second through hole is arranged at the edge of the backboard panel 31, and the backboard panel 31 sequentially passes through the second through hole, the first through hole and the main body panel 2 through a second screw 185 to be fixed on the rivet nut post a 184.

The rear ends of the screw hole sheaths 171 of the frame 1 are directly opened and run through to the rear end surface of the frame 1, so that when the main body panel 2 and the LED module 4 are installed, the first screws 43 and the second screws 185 are all installed from the rear ends, thereby not only ensuring the attractive appearance of the front surface of the display screen, but also being convenient to operate.

Further, two sets of plugs are perpendicular to each other, four frame 1 is connected end to form a rectangle, at least one transverse partition 5 is connected between two vertically arranged frames 1, each partition 5 comprises a strip-shaped plate 51 and a side plate 52 extending backwards along two long sides of the strip-shaped plate 51, the side plate 52, a side wall plate 182 of two adjacent frames with the side plate 52 and another side plate 52 of another partition plate 5' opposite to the side plate enclose a rectangular frame, or the side plate 52, the side wall plate 182 of two adjacent frames with the side plate 52 and another side wall plate 182 of the frame 1 opposite to the side plate 52 enclose a rectangular frame, the waterproof strip 183 is an integrally formed rectangle adapted to the rectangular frame, and the back plate 3 is fastened and fixed with the rectangular frame.

The number of the partition edges 5 can be designed according to the overall size and strength requirements of the display screen, as shown in fig. 6, the partition plates 5/5' are arranged between the two vertical side frames 1, so that the back plate 3 is correspondingly provided with three, the waterproof strip 183 also correspondingly comprises three rectangular overall waterproof sealing strips, the section of the waterproof strip 183 is U-shaped and is provided with an inner hook, the waterproof strip 183 is made of rubber materials and can be firmly fastened on the side coaming 182, and the back plate 3 is fastened and fixed in the back plate mounting groove 18, so that the sealing effect is good.

Further, referring to fig. 12, a rivet nut post B53 is fixed on the strip-shaped plate 51, a third through hole is provided at an edge of the backboard faceplate 31, and the backboard faceplate 31 is fixed on the rivet nut post B53 by a third screw 54 penetrating through the third through hole.

Further, as shown in fig. 12, the side coaming 32 of each backboard 3 includes an upper backboard side plate 321 and a lower backboard side plate 322, and in two adjacent backboards 3, the backboard located below: the front end of the upper back plate side plate 321 extends upwards vertically to form a sealing plate 33, and the sealing plate 33 is blocked between the lower back plate side plate 322 of the back plate located above and the strip-shaped plate 51.

Therefore, rainwater can be prevented from entering through a gap between two adjacent back plates, and the waterproof effect is ensured.

Further, the main body panel 2 is in a grid shape formed integrally, and includes a plurality of transverse ribs 21 and vertical ribs 22.

The number and size of the transverse ribs 21 and the vertical ribs 22 can be set according to the number of the single LED units constituting the whole LED module 4.

Furthermore, a transverse reinforcing rib 23 is arranged on the main body panel 2, and two ends of the transverse reinforcing rib 23 are fixed on the frame 1.

The extension plane of the transverse reinforcing ribs 23 is perpendicular to the plane of the whole display screen, so that the stress strength of the frame 1 is enhanced.

Further, the frame 1, the wrap angle 19, the body panel 2, and the back panel 3 are made of aluminum materials.

Frame 1 adopts the aluminium alloy to make, main part panel 2 and back 3 all adopt aluminium sheet to make, make whole weight greatly reduced of outdoor LED display screen, simple to operate moreover just can accomplish the installation work alone.

Further, a handle 24 is fixed to the rear end surface of the frame 1.

Furthermore, a main control card 61, a sub-control card 62, a power conversion module 63, a GPS positioning module 64, and a 3G wireless router 65 are fixed on the main body panel 2.

The master control card 61 is used for storing and playing control of local display content, adopts cloud platform remote cluster management, can remotely replace and control playing program content, and can also expand an SD card; the secondary control card 62 is used for expanding a control area of the display screen; the power supply conversion module 63 is used for supplying power to the product by using DC +48V low voltage, so that the power supply is safer, and the product can adapt to more use environments; the GPS positioning module is used for realizing positioning tracking; and the 3G wireless router is used for realizing wireless transmission and program control.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.

Claims

1. An outdoor LED display screen is characterized by comprising a frame, a main body panel arranged on the frame, an LED module fixed on the main body panel and a back plate,

the frame includes:

a peripheral plate having an outwardly arched portion;

the middle surrounding plate surrounds the edge of the LED module, the front end and the rear end of the middle surrounding plate are connected with peripheral plates, a connecting plate is connected between the middle surrounding plate and the arched part, and the front part of the middle surrounding plate, the connecting plate and the peripheral plates surround to form a first cavity;

the front end plate, the rear end plate, the middle surrounding plate and the inner surrounding plate are enclosed to form a second cavity, a plurality of screw hole sheaths are arranged in the second cavity, a first through hole and a rear end opening are formed in the front ends of the screw hole sheaths, the rear end opening penetrates through the rear end face of the frame, and the main body panel is fixed on the front end plate;

the backboard installing groove is characterized in that a bottom board of the backboard installing groove is vertically formed on the inner coaming, the backboard installing groove also comprises a side coaming which is parallel to the inner coaming, and a waterproof strip is fastened on the side coaming;

the back plate includes:

a back panel abutting against the waterproof strip;

2. The outdoor LED display screen of claim 1, wherein a rivet nut stud A is fixed in the back plate mounting groove, a second through hole is formed in the edge of the back plate panel, and the back plate panel is fixed on the rivet nut stud A through the second through hole by a second screw.

3. The outdoor LED display screen of claim 1, wherein two sets of the plugs are perpendicular to each other, four of the frames are connected end to form a rectangle, at least one partition is connected between two vertically arranged frames, the partition comprises a strip-shaped plate and side plates extending backwards along two long sides of the strip-shaped plate, the side plates, the side wall plates of the two frames adjacent to the side plate and the other side wall plate of the other partition opposite to the side plate enclose a rectangular frame, or the side plates, the side wall plates of the two frames adjacent to the side plate and the other side wall plate of the frame opposite to the side plate enclose a rectangular frame, the waterproof strip is an integrally formed rectangle adapted to the rectangular frame, and the backboard is fastened to the rectangular frame.

4. The outdoor LED display screen of claim 3, wherein a rivet nut post B is fixed on the strip-shaped plate, a third through hole is formed in the edge of the backboard panel, and the backboard panel is fixed on the rivet nut post B by a third screw passing through the third through hole.

5. An outdoor LED display screen according to claim 3, wherein the back plate side plate comprises an upper back plate side plate and a lower back plate side plate, and of the two back plates which are adjacent up and down, the back plate positioned below: the front end of the upper backboard side plate extends upwards vertically to form a sealing plate, and the sealing plate is blocked between the lower backboard side plate of the backboard above and the strip-shaped plate.

6. The outdoor LED display screen of claim 1, wherein the main body panel is in the shape of an integrally formed grid, and comprises a plurality of transverse ribs and vertical ribs.

7. The outdoor LED display screen of claim 1, wherein the main body panel is provided with a transverse reinforcing rib, and two ends of the transverse reinforcing rib are fixed on the frame.

8. An outdoor LED display screen according to claim 1, wherein the frame is an aluminum profile frame, and the main body panel and the back panel are made of aluminum plates.

9. An outdoor LED display screen according to claim 1, characterized in that a handle is fixed on the rear end face of the frame.

10. An outdoor LED display screen according to claim 1, wherein a main control card, a secondary control card, a power supply conversion module, a GPS positioning module and a 3G wireless router which are connected with the LED module are fixed on the main body panel.