Display device

Abstract

The utility model provides display equipment. The display equipment comprises a supporting main body, an LED display screen and a cover body, the supporting body comprises an inner frame, an outer frame arranged outside the inner frame in a surrounding mode, and a plurality of connecting pieces connected between the inner frame and the outer frame, wherein the outer frame and the inner frame are arranged in a spaced mode. A peripheral edge of the LED display screen is respectively supported on the inner frame, and the LED display screen is connected with the inner frame; the peripheral edge of the cover body is supported on the outer frame, and the cover body is connected with the outer frame. According to the display equipment, the supporting body is arranged to be of an inner-layer structure and an outer-layer structure, the structural strength of the supporting body is guaranteed, when the peripheral edge of the LED display screen is supported on the inner frame, the inner frame can guarantee the supporting strength of the LED display screen, cross rods and vertical rods do not need to be installed between the inner frame, and when the LED display screen is subjected to post-installation or post-maintenance, the LED display screen can be conveniently and rapidly installed and maintained. Operation in a gap between the transverse rod and the vertical rod is not needed, and the difficulty of post-installation or post-maintenance of the LED display screen is reduced.

Description

Technical Field

[0001] The present application belongs to the field of LED display technology, and more specifically, to a display device. Background Art

[0002] LED display screens have the characteristics of high luminous brightness, high luminous efficiency, bright colors, high contrast, short response time, wide operating temperature range, and low energy consumption. They are widely used in stage display equipment, advertising display equipment, data visualization display equipment, and commercial display equipment. With the application of LED display screens in various occasions, the demand for LED display screens is increasing, and light box type LED high-definition display equipment has emerged. This product has a wide range of application scenarios. Indoor products are mainly used in large public places such as airport halls, high-speed railway station waiting rooms, bank service halls, government office halls, hospital halls, and large shopping mall halls. Outdoor products are mainly used in downtown areas with large traffic and traffic, highway intersections, seaside entertainment venues, parks and other public places.

[0003] The above display devices generally support the LED display screen through a supporting body. In order to ensure the supporting strength of the LED display screen, the supporting body is generally formed by cross-connecting multiple horizontal bars and multiple vertical bars, and the LED display screen is installed on the horizontal bars and vertical bars. When the LED display screen needs to be maintained, it is necessary to operate in the gap between the horizontal bars and the vertical bars, which is very inconvenient. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a display device to solve the technical problem of inconvenient post-maintenance operation of LED display screens in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a display device, including a supporting body, an LED display screen and a cover body; the supporting body includes an inner frame, an outer frame arranged outside the inner frame and spaced apart from the inner frame, and a plurality of connecting members connected between the inner frame and the outer frame; a peripheral edge of the LED display screen is respectively supported on the inner frame, and the LED display screen is connected to the inner frame; a peripheral edge of the cover body is supported on the outer frame, and the cover body is connected to the outer frame.

[0006] In one embodiment, the inner frame is formed by connecting a plurality of inner frames end to end in sequence, and the inner frames are made of aluminum profiles;

[0007] And / or, the outer frame is formed by connecting and enclosing a plurality of outer frames end to end in sequence, and the outer frame is an aluminum profile.

[0008] In one embodiment, the inner frame includes two first inner frames that are oppositely disposed and two second inner frames that are oppositely disposed, and opposite ends of the second inner frames are respectively connected to the two first inner frames;

[0009] The outer frame includes a plurality of outer frame frames connected end to end in sequence; the opposite ends of the first inner frame are respectively connected to the corresponding outer frame frames.

[0010] In one embodiment, the support body also includes a hanging ring and a first connecting seat, the first connecting seat passes through the top of the outer frame, the top of the first connecting seat is connected to the hanging ring, the bottom of the first connecting seat is connected to the top of the inner frame, and the outer frame is abutted between the hanging ring and the first connecting seat.

[0011] In one embodiment, the support body also includes a second connecting seat and a supporting foot, the second connecting seat passes through the bottom of the outer frame, the top of the second connecting seat is connected to the bottom of the inner frame, and the bottom of the second connecting seat is connected to the supporting foot.

[0012] In one embodiment, the LED display screen has a first side and a second side opposite to each other, the first side is rotatably connected to the inner frame, and the second side is detachably connected to the inner frame.

[0013] In one embodiment, the display device includes two LED display screens, and the two LED display screens are rotatably mounted on the front and rear sides of the inner frame respectively;

[0014] Alternatively, the display device includes an LED display screen and a poster, and the LED display screen and the poster are rotatably mounted on the front and rear sides of the inner frame respectively.

[0015] In one embodiment, the connection between the cover and the outer frame is sealed and abutted by a first sealing member;

[0016] And / or, the outer frame is formed by connecting and enclosing a plurality of outer frames end to end in sequence, and the joints of the outer frames are sealed by gluing;

[0017] And / or, a fan module is installed on the outer frame, and a waterproof cover is installed outside the fan module.

[0018] In one embodiment, a mounting member is installed on the inner side of the outer frame, and the display device further includes a fan module, the fan module includes a fan bracket and a fan installed on the fan bracket, and the fan bracket and the mounting member are locked along the front-to-back direction by fasteners.

[0019] In one embodiment, a distribution box is installed on the inner frame, and the distribution box includes a box body and a box cover arranged on the box body, and the box body and the box cover are sealed and connected by a second sealing member;

[0020] And / or, the box body is formed with a cable hole, and a waterproof gland for allowing the cable to pass through is installed at the cable hole.

[0021] The beneficial effect of the display device provided by the present application is that: the display device provided by the embodiment of the present application, its supporting body includes an inner frame, an outer frame and multiple connecting parts, the outer frame is arranged outside the inner frame and is spaced from the inner frame, and each connecting part is connected between the outer frame and the inner frame, so that the supporting body can be an inner and outer two-layer structure, thereby ensuring the structural strength of the supporting body. When the edge of one edge of the LED display screen is supported on the inner frame, the inner frame can ensure the supporting strength of the LED display screen, and there is no need to install horizontal bars and vertical bars between the inner frames. Therefore, when the LED display screen is post-installed or post-maintained, there is no need to operate from the gap between the horizontal bars and the vertical bars, thereby reducing the difficulty of post-installation or post-maintenance of the LED display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a display device provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of an open front cover of a display device provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of an open front LED display screen of a display device provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the front structure of a supporting body in a display device provided in an embodiment of the present application;

[0027] Figure 5 A schematic cross-sectional structural diagram of a support body in a display device provided in an embodiment of the present application;

[0028] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of the part in the middle;

[0029] Figure 7 for Figure 5A schematic diagram of the enlarged structure of the local B in the middle;

[0030] Figure 8 A schematic diagram of the expansion of the outer frame and the door frame in the display device provided in an embodiment of the present application;

[0031] Fig. 9 A schematic diagram of the structure of a waterproof cover in a display device provided in an embodiment of the present application;

[0032] Fig.10 A schematic diagram of the assembly structure of a support body, an LED display screen, and a fan module in a display device provided in an embodiment of the present application;

[0033] Fig.11 for Fig.10 A schematic diagram of the enlarged structure of the C part;

[0034] Fig.12 for Fig.11 Schematic diagram of the assembly steps of the middle fan bracket and the outer frame;

[0035] Fig.13 for Fig.10 Schematic diagram of the structure of the middle fan bracket;

[0036] Fig.14 for Fig.10 Schematic diagram of the assembly steps of the middle fan and the fan bracket;

[0037] Fig.15 for Figure 2 Schematic diagram of the exploded structure of the distribution box.

[0038] Among them, the reference numerals in the figure are:

[0039] 100, support body; 110, inner frame; 111, first inner frame; 112, second inner frame; 120, outer frame; 121, outer frame; 1211, through groove; 123, vent; 124, mounting member; 125, fastener; 126, stopper; 130, connector; 131, first fixing plate; 132, second fixing plate; 140, first connecting seat; 141, mounting plate; 142, abutting plate; 143, connecting part; 144, cylindrical part; 150, lifting ring; 160, second connecting seat; 161, stopper plate; 162, convex part; 163, supporting part; 164, connecting plate; 170, supporting foot; 200, LED display; 210 , first side; 220, second side; 230, display module; 240, box body; 300, cover body; 310, door frame; 311, door frame; 320, transparent part; 400, first sealing member; 500, fan module; 510, fan bracket; 511, bracket body; 512, fixing part; 513, limiting part; 514, mounting hole; 520, fan; 521, fan body; 522, bonding plate; 600, waterproof cover; 610, mounting part; 620, cylinder part; 630, baffle; 631, hook part; 700, distribution box; 710, box body; 720, box cover; 730, second sealing member; 740, buckle; 750, waterproof gland. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0043] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] Please also read Figures 1 to 5 , the display device provided by the embodiment of the present application is now described. The display device includes a supporting body 100, an LED display screen 200 and a cover body 300; the supporting body 100 includes an inner frame 110, an outer frame 120 arranged outside the inner frame 110 and spaced from the inner frame 110, and a plurality of connectors 130 connected between the inner frame 110 and the outer frame 120; the edges of the LED display screen 200 are respectively supported on the inner frame 110, and the LED display screen 200 is connected to the inner frame 110; the edges of the cover body 300 are supported on the outer frame 120, and the cover body 300 is connected to the outer frame 120.

[0045] The LED display screen 200 includes a plurality of display modules 230 , which are distributed in a matrix and spliced ​​together through a box 240 .

[0046] The edges of the LED display screen 200 are supported on the inner frame 110, that is, the LED display screen 200 is supported by the inner frame 110. The LED display screen 200 and the inner frame 110 may be locked around the edges, or several sides may be locked, or the LED display screen 200 and the inner frame 110 may be hinged.

[0047] The display device in the embodiment of the present application has a support body 100 including an inner frame 110, an outer frame 120 and a plurality of connectors 130. The outer frame 120 is disposed outside the inner frame 110 and is spaced apart from the inner frame 110. Each connector 130 is connected between the outer frame 120 and the inner frame 110. In this way, the support body 100 can be an inner and outer two-layer structure, thereby ensuring the structural strength of the support body 100. When the edge of one side of the LED display screen 200 is supported on the inner frame 110, the inner frame 110 can ensure the support strength of the LED display screen 200. There is no need to install horizontal bars and vertical bars between the inner frames 110. Therefore, when the LED display screen 200 is post-installed or post-maintained, there is no need to operate from the gap between the horizontal bars and the vertical bars, thereby reducing the difficulty of post-installation or post-maintenance of the LED display screen 200.

[0048] In one embodiment, see Figure 4The inner frame 110 is formed by connecting a plurality of inner frames end to end in sequence, and the inner frames are aluminum profiles; the outer frame 120 is formed by connecting a plurality of outer frames 121 end to end in sequence, and the outer frames are aluminum profiles. Among them, the aluminum profile has a low density and a light weight, which can greatly reduce the weight of the entire support body 100. In addition, the aluminum profile has a high hardness. By setting a double-layer aluminum profile, the structural strength of the support body 100 is high, that is, the support body 100 has a smaller weight while ensuring the supporting strength for the LED display screen 200. It can be understood that in other embodiments of the present application, the inner frame 110 can also be made of steel profiles, iron profiles and other profiles, or the outer frame 120 can also be made of steel profiles, iron profiles and other profiles, which is not limited here.

[0049] In one embodiment, see Figure 4 The inner frame 110 includes two oppositely arranged first inner frames 111 and two oppositely arranged second inner frames 112, and the opposite ends of the second inner frames 112 are respectively connected to the two first inner frames 111; the outer frame 120 includes a plurality of outer frames 121 connected end to end in sequence; the opposite ends of the first inner frames 111 are respectively connected to the corresponding outer frames 121.

[0050] In actual applications, the display device is vertically arranged, the inner frame 110, the outer frame 120 and the LED display screen 200 are all vertically arranged, the two first inner frames 111 are spaced apart in the vertical direction, the two second inner frames 112 are spaced apart in the horizontal direction, and the opposite ends of the first inner frame 111 are respectively connected to the two horizontally spaced outer frames 121.

[0051] In this embodiment, by extending the opposite ends of the first inner frame 111 in the inner frame 110 to connect with the outer frame 121 in the outer frame 120, the connection strength between the inner frame 110 and the outer frame 120 is improved, thereby improving the supporting capacity of the inner frame 110 for the LED display screen 200.

[0052] In one embodiment, see Figure 4 and Figure 5The supporting body 100 further includes a hanging ring 150 and a first connecting seat 140. The first connecting seat 140 passes through the top of the outer frame 120. The top of the first connecting seat 140 is connected to the hanging ring 150. The bottom of the first connecting seat 140 is connected to the top of the inner frame 110. The outer frame 120 abuts between the hanging ring 150 and the first connecting seat 140. Specifically, the bottom of the first connecting seat 140 is connected to the first inner frame 111 located at the top. Among them, the lifting ring 150 is generally used to connect the top of the display device with the on-site bracket, and the lifting ring 150 is directly connected to the first inner frame 111 of the inner frame 110 through the first connecting seat 140, that is, the lifting ring 150 is directly connected to the LED display screen 200, and the LED display screen 200 is directly lifted, thereby ensuring the lifting strength of the LED display screen 200; at the same time, because the outer frame 120 is abutted between the lifting ring 150 and the first connecting seat 140, that is, the lifting ring 150 and the first connecting seat 140 are also connected to the outer frame 120, so that not only the outer frame 120 can be lifted together, but also the connection strength between the inner frame 110 and the outer frame 120 is improved.

[0053] In one embodiment, see Figure 6 The first connecting seat 140 includes a mounting plate 141, an abutting plate 142, a connecting portion 143 and a cylindrical portion 144. The mounting plate 141 is fitted and abutted against the top side of the first inner frame 111 and is locked by screws. The abutting plate 142 is fitted and abutted against the lower side of the outer frame 121 located at the top and is locked by screws. The connecting portion 143 is connected between the mounting plate 141 and the abutting plate 142 and is located between the first inner frame 111 and the outer frame 121. The cylindrical portion 144 is connected to the side of the abutting plate 142 away from the mounting plate 141. The cylindrical portion 144 is arranged to penetrate the outer frame 121. The hanging ring 150 is inserted into the cylindrical portion 144 from the top side of the outer frame 121 and is threadedly locked with the cylindrical portion 144, thereby realizing the connection between the hanging ring 150, the first connecting seat 140, the first inner frame 111 and the outer frame 121.

[0054] In one embodiment, see Figure 1 , Figure 4 and Figure 5 The support body 100 also includes a second connecting seat 160 and a supporting foot 170 . The second connecting seat 160 passes through the bottom of the outer frame 120 , the top of the second connecting seat 160 is connected to the bottom of the inner frame 110 , and the bottom of the second connecting seat 160 is connected to the supporting foot 170 .

[0055] In practical applications, the support leg 170 is used to support the on-site bracket and is locked and connected to the on-site bracket. In this embodiment, the support leg 170 is directly connected to the inner frame 110 through the second connection seat 160, that is, the LED display screen 200 can be directly supported by the support leg 170, thereby ensuring the support strength of the support leg 170 for the LED display screen 200. In addition, the second connection seat 160 is also connected to the outer frame 120, so that it can not only improve the connection strength between the inner frame 110 and the outer frame 120, but also support the outer frame 120 together.

[0056] Specifically, the top of the second connection seat 160 is connected to the first inner frame 111 at the bottom of the inner frame 110 , and the second connection seat 160 passes through the outer frame 121 at the bottom of the outer frame 120 , and the second connection seat 160 is connected to the outer frame 121 .

[0057] In one embodiment, see Figure 5 and Figure 7 The second connection seat 160 includes a limit plate 161, a convex portion 162, a support portion 163 and two connection plates 164. The limit plate 161 is fitted and locked with the lower side of the outer frame 121 at the bottom, and the limit plate 161 is locked and connected with the support foot 170. The convex portion 162 is convexly arranged on the limit plate 161, and the outer frame 121 is formed with a through groove 1211. The convex portion 162 is arranged to penetrate the through groove 1211, and the outer peripheral wall of the convex portion 162 is adapted to the inner peripheral wall of the through groove 1211. The support portion 163 is formed on the side of the protrusion 162 away from the limiting plate 161, and the support portion 163 is in contact with the bottom side of the first inner frame 111 at the bottom. Two connecting plates 164 are formed at intervals on the side of the support portion 163 away from the protrusion 162, and the two connecting plates 164 are respectively attached to the outer side of the connection between the first inner frame 111 and the second inner frame 112, and the connecting plates 164 are respectively locked with the first inner frame 111 and the second inner frame 112. Specifically, the number of the second connecting seat 160 and the supporting foot 170 is two, and the two second connecting seats 160 are respectively arranged corresponding to the opposite ends of the first inner frame 111, and are used for connecting the two ends of the first inner frame 111 with the two second inner frames 112. The above arrangement can not only be connected to the outer frame 121 and the first inner frame 111 respectively through the second connecting seat 160, but also can strengthen the connection strength between the first inner frame 111 and the second inner frame 112, or can simplify the connection structure between the first inner frame 111 and the second inner frame 112.

[0058] In one embodiment, see Figure 4 and Figure 5There are multiple connecting members 130, which are used for connecting different positions of the inner frame 110 and the outer frame 120 respectively. The connecting member 130, the first connecting seat 140 and the second connecting seat 160 are staggered with each other. For example, the first connecting seat 140 is arranged at the bottom, the second connecting seat 160 is arranged at the bottom, and the connecting member 130 is arranged on the left and right sides, or the connecting member 130 can also be arranged at the bottom or the top.

[0059] In one embodiment, see Figure 4 , the inner frame 110 is provided with connecting members 130 on both the front and rear sides, specifically, a part of the connecting members 130 is used to form a connection between the front side of the inner frame 110 and the front side of the outer frame 120, and another part of the connecting members 130 is used to form a connection between the rear side of the inner frame 110 and the rear side of the outer frame 120. Preferably, the front connecting member 130 and the rear connecting member 130 are symmetrically arranged front to back, if the front and rear balance of the connection between the inner frame 110 and the outer frame 120 can be ensured.

[0060] In one embodiment, see Figure 2 The connecting member 130 includes a first fixing plate 131 and a second fixing plate 132 vertically connected. The first fixing plate 131 is fitted and locked with one side of the outer frame 120 facing the inner frame 110, and the second fixing plate 132 is fitted and locked with the inner side or the outer side of the inner frame 110, thereby forming a connection between the inner frame 110 and the outer frame 120.

[0061] In one embodiment, see Figure 2 and Figure 3 The LED display screen 200 has a first side 210 and a second side 220 which are arranged opposite to each other. The first side 210 is rotatably connected to the supporting body 100, and the second side 220 is detachably connected to the supporting body 100. When the LED display screen 200 needs to be maintained, the cover body 300 is first rotated to open, and then the second side 220 of the LED display screen 200 is detached from the supporting body 100, and the LED display screen 200 is driven to rotate around the first side 210 to open, so that the rear side of the LED display screen 200 can be displayed in front of the staff, and the staff can directly perform maintenance on the LED display screen 200, which is convenient to operate and has no other structural obstacles or constraints.

[0062] In one embodiment, see Figure 3The display device includes two LED display screens 200, and the two LED display screens 200 are rotatably mounted on the front and rear sides of the inner frame 110. Among them, since the LED display screen 200 is rotatably mounted on the inner frame 110, it is not necessary to perform rear maintenance on the LED display screen 200 on the front side of the supporting body 100 from the rear side of the supporting body 100, so that an LED display screen 200 can be installed on both the front and rear sides of the supporting body 100, thereby realizing the double-sided display requirement, which has more application value. It can be understood that in other embodiments of the present application, according to actual application requirements, the above-mentioned display device may also include an LED display screen 200 and a poster, and the LED display screen 200 and the poster are rotatably mounted on the front and rear sides of the inner frame 110, respectively, and this is not the only limitation here.

[0063] Optionally, the first side 210 of the LED display screen 200 can be rotatably mounted on the inner frame 110 via a hinge structure. The LED display screen 200 can be mounted on the inner frame 110 via various automatic locking structures, as long as they can be quickly unlocked and the LED display screen can be locked on the inner frame 110.

[0064] In one embodiment, see Figure 3 The display device includes two covers 300, which are respectively covered on the front sides of the two LED display screens 200, and the two covers 300 are respectively rotatably connected to the front and rear sides of the support body 100. When the front LED display screen 200 needs to be maintained, it is only necessary to rotate the front cover 300 to open it, and then rotate the front LED display screen 200 to open it, which is simple to operate. When the rear LED display screen 200 needs to be maintained, it is only necessary to rotate the rear cover 300 to open it, and then rotate the rear LED display screen 200 to open it, which is simple to operate.

[0065] In one embodiment, see Figure 3 The connection between the cover body 300 and the outer frame 120 is sealed and abutted by the first sealing member 400, so that the cover body 300 and the outer frame 120 can be sealed and connected. Specifically, the first sealing member 400 is installed on the inner side of the periphery of the cover body 300. The first sealing member 400 is a sealing ring. When the cover body 300 is covered on the outer frame 120 and fastened, the first sealing member 400 elastically abuts between the periphery of the cover body 300 and the outer frame 120, thereby forming a sealed connection between the cover body 300 and the outer frame 120.

[0066] In one embodiment, see Figure 8The outer frame 120 is formed by connecting and enclosing multiple outer frames 121 end to end in sequence, and the joints 122 of each outer frame 121 are glued and sealed, that is, after the two adjacent outer frames 121 are spliced ​​and locked, glue is also applied at the joints 122 between the adjacent outer frames 121, so as to achieve a sealed connection between the two adjacent outer frames 121 and prevent external moisture and dust from entering the interior of the support body 100 from the joints 122 of the outer frames 121.

[0067] In one embodiment, see Figure 1 and Figure 5 In order to ensure the heat dissipation effect inside the display device, it is generally necessary to form a vent 123 on the outer frame 120, and install a fan module 500 at the vent 123, so as to promote the exchange of internal and external airflows through the fan module 500, thereby achieving heat dissipation. However, the provision of the vent 123 will cause external moisture and dust to enter the interior of the display device, corrode the internal circuit, and affect the service life of the display device. For this reason, in the present embodiment, a fan module 500 is installed on the outer frame 120, and a waterproof cover 600 is installed outside the fan module 500. The waterproof cover 600 is arranged outside the fan module 500 to prevent moisture and dust from entering the fan module 500 and the interior of the display device under the premise of ventilation.

[0068] In one embodiment, see Figure 3 and Fig. 9 The waterproof cover 600 includes a mounting portion 610 and a cylindrical portion 620. A mounting opening is formed on the inner side of the outer frame 120. The mounting portion 610 is attached to the outer end surface of the mounting opening and locked, and the mounting portion 610 is fixedly connected to the fan module 500. The cylindrical portion 620 is arranged in the inner cavity of the outer frame 120. The cylindrical portion 620 is arranged opposite to the vent 123. A plurality of baffles 630 are formed in the cylindrical portion 620 and are arranged in sequence from bottom to top. The baffles 630 extend obliquely from outside to inside and from bottom to top. A hook portion 631 is formed at the top (i.e., the inner end) of the baffle 630. Since the gas has a small density and generally flows upward, while the liquid and dust flow downward, the baffle 630 can be arranged to prevent the liquid and dust from entering the interior of the display device without affecting the airflow. In addition, the hook portion 631 is arranged so that if there is liquid flowing inward along the baffle 630, it will also be blocked by the internal hook portion 631, thereby achieving a better waterproof effect.

[0069] In one embodiment, see Fig.10 and Fig.11, a mounting member 124 is installed on the inner side of the outer frame 120, and the display device further includes a fan module 500, the fan module 500 includes a fan bracket 510 and a fan 520 mounted on the fan bracket 510, and the fan bracket 510 and the mounting member 124 are locked in the front-to-back direction by a fastener 125. In practical applications, in order to ensure the narrow frame design of the display device, the gap between the inner frame 110 and the outer frame 120 is as small as possible, and the existing fan 520 is generally fixed by screws in a direction perpendicular to the outer frame 120, that is, the screws are locked from the position of the LED display screen 200 to the direction of the outer frame 120, which is difficult to operate due to the narrow space. In this embodiment, through the design of the fan bracket 510, the fan 520 can be first installed on the fan bracket 510, and then the fan bracket 510 and the mounting member 124 are locked and fixed in the front-to-back direction by the fastener 125, so that the fan 520 is installed on the outer frame 120, which reduces the difficulty of operation.

[0070] For details, please refer to Fig.11 and Fig.12 The outer frame 120 is provided with a stopper 126 and two mounting members 124. The two mounting members 124 are arranged above the stopper 126. The two mounting members 124 are arranged at intervals along the front-to-back direction. The fan bracket 510 includes a bracket body 511, a fixing plate 512 formed at both front and rear sides of the top of the bracket body 511, and a stopper 513 formed at the bottom of the bracket body 511.

[0071] When installing, refer to Fig.12 In the first step, the limiting member 126 and the two mounting members 124 are installed on the outer frame 120; in the second step, the limiting portion 513 is inserted into the limiting member 126 from top to bottom; in the third step, the fan bracket 510 is rotated 22 degrees toward the outer frame 120 so that the two fixing plates 512 are respectively attached to the front and rear sides of the two mounting members 124; in the fourth step, the fixing plates 512 and the mounting members 124 are locked by two fasteners 125 from the front and rear sides of the outer frame 120 respectively.

[0072] In one embodiment, see Fig.13 and Fig.14 The fan bracket 510 is formed with a mounting hole 514. The fan 520 includes a fan body 521 and bonding plates 522 formed at both ends of the fan body 521. The two bonding plates 522 are both square in shape. The mounting hole 514 is also square in shape. The mounting hole 514 is inclined relative to the vertical direction. When assembling the fan 520, please refer to Fig.14The first step is to rotate the bonding plate 522 of the fan 520 to face the mounting hole 514; the second step is to extend one of the bonding plates 522 into the mounting hole 514 to lock with the waterproof cover 600, and leave the other bonding plate 522 outside the fan bracket 510; the third step is to rotate the fan 520 22 degrees so that the fan 520 is symmetrically arranged relative to the vertical direction; the fourth step is to screw the bonding plate 522 to the fan bracket 510. The above arrangement enables the fan 520 to be installed through the smaller mounting hole 514.

[0073] In one embodiment, the connection between the first connection seat 140 and the outer frame 120 and the connection between the second connection seat 160 and the outer frame 120 are both glued to improve the sealing performance of the connection.

[0074] In one embodiment, see Figure 3 and Figure 8 The cover body 300 includes a door frame 310 and a transparent member 320. The door frame 310 is formed by connecting a plurality of door frames 311 end to end in sequence. The edges of the transparent member 320 are fixedly connected to each door frame 311. The transparent member 320 is arranged facing the LED display screen 200. Each door frame 311 is an aluminum profile. The joints of the door frames 311 are also glued. In addition, the transparent member 320 and the door frame 310 can also be connected by gluing to ensure the sealing of the door frame 310.

[0075] In one embodiment, see Figure 3 and Fig.15 A distribution box 700 is installed on the inner frame 110. The distribution box 700 includes a box body 710 and a box cover 720 covered on the box body 710. The box body 710 and the box cover 720 are sealed and connected via a second sealing member 730. In this way, a sealed connection between the box body 710 and the box cover 720 can be achieved, thereby reducing external water vapor from entering the box body 710 and overlooking the components.

[0076] Specifically, one side of the box body 710 is rotatably connected to the box cover 720, and the other side of the box body 710 is connected to the box cover 720 through the buckle 740. Since the box cover 720 exerts a certain extrusion force on the box body 710 when the buckle 740 is fastened, the second sealing member 730 can be squeezed and deformed, thereby ensuring the sealing between the box cover 720 and the box body 710. The buckle 740 is a common connection structure, which will not be described in detail here. The buckle 740 is an accessory of a chassis or a wooden box, which can make the box cover 720 cover the box body 710 more tightly, and can also be locked with a padlock, which is also convenient to open.

[0077] In one embodiment, see Fig.15The box body 710 is formed with a cable hole, and a waterproof gland 750 for passing the cable is installed at the cable hole. The waterproof gland 750 is an accessory for fastening and sealing the cable, and its main function is to ensure the normal connection of the cable, and at the same time to prevent dust and water.

[0078] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display device, characterized in that: It includes a supporting body, an LED display screen and a cover body; the supporting body includes an inner frame, an outer frame arranged outside the inner frame and spaced apart from the inner frame, and a plurality of connectors connected between the inner frame and the outer frame; a peripheral edge of the LED display screen is respectively supported on the inner frame, and the LED display screen is connected to the inner frame; a peripheral edge of the cover body is supported on the outer frame, and the cover body is connected to the outer frame.

2. The display device according to claim 1, characterized in that The inner frame is formed by connecting a plurality of inner frames end to end in sequence, and the inner frame is made of aluminum profile; And / or, the outer frame is formed by connecting and enclosing a plurality of outer frames end to end in sequence, and the outer frame is an aluminum profile.

3. The display device according to claim 1, characterized in that The inner frame includes two first inner frames that are oppositely arranged and two second inner frames that are oppositely arranged, and opposite ends of the second inner frames are respectively connected to the two first inner frames; The outer frame includes a plurality of outer frame frames connected end to end in sequence; the opposite ends of the first inner frame are respectively connected to the corresponding outer frame frames.

4. The display device according to claim 1, characterized in that The supporting body also includes a hanging ring and a first connecting seat, the first connecting seat passes through the top of the outer frame, the top of the first connecting seat is connected to the hanging ring, the bottom of the first connecting seat is connected to the top of the inner frame, and the outer frame is abutted between the hanging ring and the first connecting seat.

5. The display device according to claim 1, characterized in that The supporting body also includes a second connecting seat and a supporting foot, the second connecting seat passes through the bottom of the outer frame, the top of the second connecting seat is connected to the bottom of the inner frame, and the bottom of the second connecting seat is connected to the supporting foot.

6. The display device according to any one of claims 1 to 5, characterized in that: The LED display screen has a first side and a second side opposite to each other, the first side is rotatably connected to the inner frame, and the second side is detachably connected to the inner frame.

7. The display device according to claim 6, characterized in that The display device comprises two LED display screens, which are rotatably mounted on the front and rear sides of the inner frame respectively; Alternatively, the display device includes an LED display screen and a poster, and the LED display screen and the poster are rotatably mounted on the front and rear sides of the inner frame respectively.

8. The display device according to any one of claims 1 to 5, characterized in that: The connection between the cover body and the outer frame is sealed and abutted by a first sealing member; And / or, the outer frame is formed by connecting and enclosing a plurality of outer frames end to end in sequence, and the joints of the outer frames are sealed by gluing; And / or, a fan module is installed on the outer frame, and a waterproof cover is installed outside the fan module.

9. The display device according to any one of claims 1 to 5, characterized in that: A mounting piece is installed on the inner side of the outer frame. The display device also includes a fan module. The fan module includes a fan bracket and a fan installed on the fan bracket. The fan bracket and the mounting piece are locked along the front-to-back direction by a fastener.

10. The display device according to any one of claims 1 to 5, characterized in that: A distribution box is installed on the inner frame, and the distribution box includes a box body and a box cover arranged on the box body, and the box body and the box cover are sealed and connected by a second sealing member; And / or, the box body is formed with a cable hole, and a waterproof gland for allowing the cable to pass through is installed at the cable hole.

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