LED display screen spliced by using pre-maintenance suite

Abstract

The utility model provides an LED display screen spliced by front maintenance suites. The LED display screen comprises a box body and a plurality of front maintenance suites, the box body comprises a plurality of installation units, and the front maintenance suites are installed on the installation units in a one-to-one correspondence mode; the front maintenance suite comprises a bottom shell, a first electric connecting part and a second electric connecting part are arranged on the bottom shell, the first electric connecting part is provided with a first connector, the second electric connecting part is provided with a second connector, and the mounting unit is provided with a connecting assembly used for connecting the box mounting unit, the second connector and the bottom shell. The second connector, the bottom shell and the mounting unit communicate with one another, and a protection assembly is arranged on the box body; the protection assembly comprises a side plate arranged on the box body and a protection plate detachably connected to the side plate, a protection space is formed between the box body and the side plate, the protection space communicates with the second connector, the bottom shell and the installation unit, one side of the protection space is an opening, the protection plate is matched with the opening of the protection space in shape, and when the protection plate is connected to the side plate, the protection plate is detachably connected to the side plate. The protection plate seals the opening of the protection space, and a circuit pipe is arranged on the side plate in a penetrating mode. The utility model has the advantages of high water resistance and high dust resistance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of LED display screen especially relates to a kind of LED display screen spliced with front maintenance kit. BACKGROUND

[0002] LED display screen is a kind of screen using LED lamp as display technology, is widely used in television, billboard, indoor and outdoor large screen, mobile phone, television, traffic sign etc.

[0003] In order to facilitate and the electrical connection of adjacent front maintenance kit, the driving plate (PCB plate) for controlling LED lamp is provided with power interface and data transmission interface, the bottom shell in the existing front maintenance kit is usually provided with two electrical connection openings, the power interface is connected with power supply through one electrical connection opening, and the data transmission interface is electrically connected with adjacent front maintenance kit through another electrical connection opening. With the development of science and technology, part LED display screen has been able to integrate power interface and data transmission interface into one, that is, only one electrical connection opening of bottom shell is used, and another electrical connection opening is in idle state.

[0004] For example, the invention with authorized publication number CN111145654A relates to LED display screen module and LED display screen, and the LED display screen includes box body, LED display screen module mounted on the box body, the LED display screen module includes bottom shell, driving plate and face shield arranged in sequence, the driving plate is respectively provided with electrical connector at both ends, the electrical connector is welded and fixed to the bottom shell, the bottom shell is correspondingly provided with two openings and two sealing rings, one of the sealing rings is provided with covering part, the electrical connector, the box body includes docking connector and mounting hole, the electrical connector and docking connector are inserted and matched, the bottom shell is provided with lock catch assembly, and the lock catch assembly is matched with mounting hole to install the LED display screen module on the box body. When the LED display screen module is installed on the box body, the electrical connector is inserted and matched in the docking connector, at this time, the sealing ring is pressed on the box body, the idle electrical connector is completely covered by the sealing ring provided with covering part, and the LED display screen module is fixed on the box body by lock catch assembly.

[0005] However, the overall waterproof and dustproof effect of the LED display screen in the prior art is insufficient, especially at the sealing ring without covering part, water or dust is easy to enter from the opening, so it is not suitable for outdoor scenes. UTILITY MODEL CONTENTS

[0006] In order to improve the problem that water or dust is easy to enter from the opening, so it is not suitable for outdoor scenes, the utility model provides a kind of LED display screen spliced with waterproof and dustproof front maintenance kit.

[0007] The utility model provides a kind of LED display screen spliced with front maintenance kit, adopt following technical scheme:

[0008] A kind of LED display screen spliced with front maintenance kit, including box, multiple front maintenance kits, box includes multiple installation units, multiple the front maintenance kits are installed in multiple the installation units one by one;

[0009] The front maintenance kit includes bottom shell and drive board, first electric connection part and second electric connection part are provided on the bottom shell, the first electric connection part is provided with first connector, the second electric connection part is provided with second connector, the installation unit is provided with the connecting assembly for connecting box installation unit, second connector and bottom shell, second connector, bottom shell and installation unit are interconnected, the box is provided with protection assembly, the drive board is provided with two electric connection ports, two the electric connection ports are inserted into first electric connection part and second electric connection part one by one;

[0010] The protection assembly includes side plate provided on the box, protection plate can be detachably connected on the side plate, protection space is formed between the box and side plate, the protection space is communicated with second connector, bottom shell and installation unit, one side of the protection space is open, the shape of protection plate and the opening of protection space is mutually adapted, when protection plate is connected to side plate, protection plate closes the opening of protection space, line pipe is also provided on the side plate.

[0011] By adopting the above technical scheme, when using, by installing first connector in first electric connection part, the electric connection port of first electric connection part is blocked. Second connector is installed in second electric connection part, so as to reduce the gap between bottom shell and installation unit. By connecting assembly, installation unit, second connector and bottom shell are connected, so that the front maintenance kit can be installed on the box.

[0012] By operating personnel, multiple front maintenance kits are electrically connected, the wires in protection space are connected with external equipment or power supply through line pipe, and finally, by connecting protection plate to cover plate, the protection space can be closed, so as to prevent external moisture or dust from entering the protection space, prevent the wires and PCB board in the protection space from being damaged, so as to realize fully enclosed waterproof and dustproof design, with high strength and excellent safety, protection level reaches IP65, which is beneficial to be applied to various outdoor environments.

[0013] Preferably, the front maintenance kit further includes a cover provided on the drive board, the drive board is provided with an LED lamp on the side away from the bottom shell, and the cover is on the same side as the LED lamp.

[0014] By adopting the above technical scheme, the display of LED lamp is controlled by the drive board, and the LED lamp is protected by the cover, which increases the display contrast of LED lamp.

[0015] Preferably, the first electric connection part comprises a mounting base, an electric connection opening provided on the mounting base, and a waterproof slot, the electric connection opening is provided for the electric connection port to extend into, the electric connection opening penetrates the mounting base, and the waterproof slot is provided in the electric connection opening, and the first electric connection part and the second electric connection part are consistent.

[0016] By adopting the above technical scheme, the two electric connection ports are communicated with the outside of the bottom shell through the electric connection opening.

[0017] Preferably, the first connector comprises a cover plate and a first plug provided on the cover plate, the cover plate is inserted and matched with the mounting base, the first plug is inserted and matched with the waterproof slot, a waterproof sealing ring one is sleeved on the first plug, and the waterproof sealing ring one is used for sealing the gap between the cover plate and the first electric connection part.

[0018] By adopting the above technical scheme, when the cover plate is aligned and extended into the mounting base, the cover plate is inserted and matched with the mounting base, and the first plug is inserted and matched with the waterproof slot, so that the electric connection opening in the first electric connection part is closed by the cover plate, that is, the idle electric connection opening is closed, the gap between the cover plate and the first electric connection part is sealed by the waterproof sealing ring one, so as to prevent external dust or moisture from entering the bottom shell, and further protect the internal circuit or other sensitive electronic elements of the equipment from being damaged, which is suitable for outdoor or humid environment.

[0019] Preferably, a first fixing bolt is provided on the cover plate, and a first fixing screw hole is provided on the mounting base, and the first fixing bolt is threadedly matched with the first fixing screw hole.

[0020] By adopting the above technical scheme, when the first connector is installed, the cover plate is aligned and extended into the mounting base, so that the cover plate is inserted and matched with the mounting base, and the first plug is inserted and matched with the waterproof slot, and the first fixing bolt is inserted into the first fixing screw hole through the cover plate, so as to fix the first connector to the bottom shell.

[0021] Preferably, the second connector comprises a connecting plate and a second plug provided on the connecting plate, the connecting plate is inserted and matched with the mounting base of the second electric connection part, the second plug is inserted and matched with the waterproof slot of the second electric connection part, a waterproof sealing ring two is sleeved on the second plug, the waterproof sealing ring two is used for sealing the gap between the connecting plate and the first electric connection part, a through hole is provided on the connecting plate, and the through hole is communicated with the electric connection opening of the second electric connection part when the connecting plate is inserted and matched with the mounting base of the second electric connection part.

[0022] By adopting the technical scheme, when the second connector is installed, the connecting plate is aligned and inserted into the mounting seat of the second electric connecting part, the second plug block is inserted into the waterproof slot of the second electric connecting part, and the through hole is communicated with the electric connecting opening of the second electric connecting part, so that the electric connecting opening of the second electric connecting part is conveniently communicated with the outside, and the electric connection is facilitated by connecting the front maintenance kit to the mounting unit.

[0023] Preferably, the back surface of the bottom shell is provided with an upper mounting groove and a lower mounting groove, the mounting unit is provided with an upper convex strip corresponding to the upper mounting groove, the upper convex strip is inserted into the upper mounting groove, the mounting unit is provided with a lower convex strip corresponding to the lower mounting groove, and the lower convex strip is inserted into the lower mounting groove.

[0024] By adopting the technical scheme, when the second connector is installed, the connecting plate is aligned and inserted into the mounting seat of the second electric connecting part, the second plug block is inserted into the waterproof slot of the second electric connecting part, and the through hole is communicated with the electric connecting opening of the second electric connecting part, so that the electric connecting opening of the second electric connecting part is conveniently communicated with the outside, and the electric connection is facilitated by connecting the front maintenance kit to the mounting unit.

[0025] Preferably, the connecting assembly comprises a mounting plate, the mounting plate is provided with a second fixing bolt, the mounting seat of the second electric connecting part is provided with a second fixing screw hole, and the second fixing bolt is threadedly connected with the second fixing screw hole.

[0026] By adopting the technical scheme, when the second connector is installed, the connecting plate is aligned and inserted into the mounting seat of the second electric connecting part, the second plug block is inserted into the waterproof slot of the second electric connecting part, and the through hole is communicated with the electric connecting opening of the second electric connecting part, so that the electric connecting opening of the second electric connecting part is conveniently communicated with the outside, and the electric connection is facilitated by connecting the front maintenance kit to the mounting unit.

[0027] Preferably, the connecting plate is further provided with a cabinet waterproof ring, the cabinet waterproof ring is used for sealing the gap between the second connector and the mounting unit, the cabinet waterproof ring is clamped with the connecting plate, and the cabinet waterproof ring is located on the side of the connecting plate facing the mounting unit.

[0028] By adopting the technical scheme, water is prevented from entering through the gap between the connecting plate and the cabinet, and the circuit or other sensitive electronic elements inside the equipment are protected from being damaged.

[0029] Compared with the prior art, the utility model has the advantages that:

[0030] 1. It is beneficial to prevent external moisture or dust from entering the protection space, prevent the damage of the wires and the PCB in the protection space, realize the fully-closed waterproof and dustproof design, have high strength and excellent safety, have the protection level of IP65, and be beneficial to be applied to various outdoor environments.

[0031] 2. When installing, the upper installation slot is aligned and inserted into the upper convex strip, and the lower installation slot is aligned and inserted into the lower convex strip, so that the bottom shell is preliminarily positioned conveniently and quickly, and subsequent installation work is facilitated;

[0032] 3. The waterproof sealing ring 1, the waterproof sealing ring 2 and the box waterproof ring further improve the sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 It is a whole structure schematic view of the embodiment of the present application.

[0035] Figure 2 It is a structure schematic view of the box in the embodiment of the present application.

[0036] Figure 3 It is Figure 2 An enlarged view of A in the figure.

[0037] Figure 4 It is a front view of the bottom shell in the embodiment of the present application.

[0038] Figure 5 It is a structure explosion view of the front maintenance kit in the embodiment of the present application.

[0039] Figure 6 It is Figure 5 An enlarged view of B in the figure.

[0040] Figure 7 It is Figure 5 An enlarged view of C in the figure.

[0041] Figure 8 It is a structure schematic view of the protection assembly in the embodiment of the present application.

[0042] Figure 9 It is a protection plate installation schematic view in the embodiment of the present application.

[0043] Wherein, the part mark description is: 1, the box body; 11, the installation unit; 2, the front maintenance kit; 21, the bottom shell; 22, the first electric connection part; 221, the mounting seat; 2211, the first fixed screw hole; 222, the electric connection opening; 223, the waterproof slot; 23, the second electric connection part; 24, the first connector; 241, the cover plate; 242, the first plug block; 243, the waterproof sealing ring one; 25, the second connector; 251, the connecting plate; 252, the second plug block; 253, the waterproof sealing ring two; 254, the through hole; 26, the driving plate; 261, the electric connection port; 27, the face shield; 28, the box body waterproof ring; 3, the connecting assembly; 31, the mounting plate; 32, the second fixed screw hole; 4, the protection assembly; 41, the side plate; 42, the protection plate; 43, the circuit tube; 5, the protection space; 6, the upper installation groove; 7, the lower installation groove; 8, the upper convex strip; 9, the lower convex strip; 10, the through port; 12, the connecting port. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings of the embodiments of the utility model Figures 1 to 9 , the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiment is a part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of the utility model protection.

[0045] A LED display screen spliced with front maintenance kits, referring to Figure 1 With Figure 2 , including box body 1 and the front maintenance kit 2 installed on the box body 1. The box body 1 is rectangular, and the box body 1 includes a plurality of installation units 11, combined Figure 3 , the plurality of installation units 11 are arrayed and closely distributed, the front maintenance kit 2 is provided with a plurality of corresponding installation units 11, and the plurality of front maintenance kits 2 are installed one by one on the plurality of installation units 11, so that the plurality of front maintenance kits 2 are closely spliced to form a complete LED display screen.

[0046] In the embodiment, referring to Figure 2 With Figure 3 , the installation unit 11 is provided with eight, and the eight installation units 11 are divided into four groups, that is, two installation units 11 are a group, and the two installation units 11 in a group are closely arranged along the width direction of the box body 1, and the four groups of installation units 11 are closely arranged along the length direction of the box body 1, so that the eight installation units 11 are arrayed and closely distributed, and the front maintenance kit 2 is provided with eight corresponding installation units 11, and the eight front maintenance kits 2 are installed one by one on the eight installation units 11, so as to form a complete LED display screen.

[0047] Specifically, referring to Figure 4 WithFigure 5 The front maintenance kit 2 includes a bottom shell 21, a drive board 26, and a face shield 27. The bottom shell 21 is rectangular and extends along the width of the housing 1. The drive board 26 is a PCB board, rectangular in shape corresponding to the bottom shell 21, and extends along its length. The drive board 26 is bolted to the bottom shell 21, meaning it is detachably connected. An LED (not shown) is located on the side of the drive board 26 facing away from the bottom shell 21. The face shield 27 is square and mounted on the drive board 26, on the same side as the LED. Thus, the drive board 26 controls the LED display, and the face shield 27 protects the LED and increases its contrast.

[0048] Reference Figure 3 and Figure 4 The drive plate 26 has two electrical connection ports 261 on the side facing the bottom shell 21. In this embodiment, only one of the electrical connection ports 261 needs to be used. The bottom shell 21 is provided with a first electrical connection part 22 and a second electrical connection part 23.

[0049] Among them, reference Figure 5 The first electrical connection portion 22 includes a long, narrow mounting base 221, an electrical connection opening 222 formed on the mounting base 221, and a waterproof slot 223. The mounting base 221 is distributed along the width direction of the bottom shell 21 and is integrally formed with the bottom shell 21. The electrical connection opening 222 is rectangular and is distributed along the length direction of the mounting base 221. The electrical connection opening 222 allows the electrical connection port 261 to extend into it and extends through both sides of the mounting base 221. The waterproof slot 223 is rectangular and is framed within the electrical connection opening 222. The second electrical connection portion 23 is identical to the first electrical connection portion 22. The first electrical connection portion 22 and the second electrical connection portion 23 are arranged along the length direction of the bottom shell 21 and are respectively located near both ends of the bottom shell 21. During installation, one electrical connection port 261 is inserted into the electrical connection opening 222 in the first electrical connection part 22, and the other electrical connection port 261 is inserted into the electrical connection opening 222 in the second electrical connection part 23. In this embodiment, the electrical connection port 261 inserted into the first electrical connection part 22 is left idle, while the electrical connection port 261 inserted into the second electrical connection part 23 is used for electrical connection.

[0050] Reference Figure 5 and Figure 6The first electric connecting part 22 is provided with a first connecting head 24 for sealing the first electric connecting part 22. The first connecting head 24 comprises a cover plate 241 and a first plug block 242 provided on the cover plate 241. The cover plate 241 is inserted into the mounting seat 221. The first plug block 242 is in the shape of a rectangle corresponding to the waterproof slot 223. When the cover plate 241 is aligned and inserted into the mounting seat 221, the cover plate 241 is inserted into the mounting seat 221, and the first plug block 242 is inserted into the waterproof slot 223. Thus, the electric connecting opening 222 in the first electric connecting part 22 is sealed by the cover plate 241, i.e., the idle electric connecting opening 222 is sealed, thereby preventing external dust or water from entering the bottom shell 21, and further protecting the internal circuit or other sensitive electronic elements of the device from being damaged. The first plug block 242 surrounds a sealing ring groove. A waterproof sealing ring 243 is sleeved in the sealing ring groove. The waterproof sealing ring 243 is used to seal the gap between the cover plate 241 and the first electric connecting part 22, thereby preventing water from entering between the cover plate 241 and the bottom shell 21, and being suitable for outdoor or humid environments.

[0051] The cover plate 241 is provided with a first fixing bolt (not shown in the figure). Referring to Figure 6 The mounting seat 221 is provided with a first fixing screw hole 2211. The first fixing screw hole 2211 is distributed along the thickness direction of the bottom shell 21. The first fixing bolt is threadedly connected with the first fixing screw hole 2211. The first fixing screw hole 2211 is provided with two first fixing screw holes 2211 arranged along the length direction of the mounting seat 221. The first fixing bolt is provided with two first fixing bolts corresponding to the number of the first fixing screw holes 2211. The two first fixing bolts are threadedly connected with the two first fixing screw holes 2211.

[0052] When the first connecting head 24 is installed, the cover plate 241 is aligned and inserted into the mounting seat 221, so that the cover plate 241 is inserted into the mounting seat 221, and the first plug block 242 is inserted into the waterproof slot 223. The first fixing bolt is inserted through the cover plate 241 and into the first fixing screw hole 2211, thereby fixing the first connecting head 24 to the bottom shell 21. The sealing effect of the cover plate 241 and the waterproof sealing ring 243 prevents external dust or water from entering the bottom shell 21, and further protects the internal circuit or other sensitive electronic elements of the device from being damaged.

[0053] Referring to Figure 5 and Figure 7The second electric connecting part 23 is provided with a second connecting head 25, which comprises a connecting plate 251 and a second plug block 252 arranged on the connecting plate 251. The connecting plate 251 is inserted into the mounting seat 221 of the second electric connecting part 23. The second plug block 252 is consistent with the structure of the first plug block 242, and is inserted into the waterproof slot 223 of the second electric connecting part 23. A waterproof sealing ring 253 is arranged on the second plug block 252, which is used to seal the gap between the connecting plate 251 and the first electric connecting part 22. When the connecting plate 251 is aligned and inserted into the mounting seat 221 of the second electric connecting part 23, the connecting plate 251 and the mounting seat 221 of the second electric connecting part 23 are inserted into each other, and the second plug block 252 and the waterproof slot 223 of the second electric connecting part 23 are inserted into each other, so that the second connecting head 25 is mounted on the second electric connecting part 23. The connecting plate 251 is provided with a through hole 254, which is rectangular and penetrates the connecting plate 251. When the second connecting head 25 is mounted on the second electric connecting part 23, the through hole 254 is communicated with the electric connecting opening 222 of the second electric connecting part 23.

[0054] When the second connecting head 25 is mounted, the connecting plate 251 is aligned and inserted into the mounting seat 221 of the second electric connecting part 23, so that the connecting plate 251 is inserted into the mounting seat 221 of the second electric connecting part 23, the second plug block 252 is inserted into the waterproof slot 223 of the second electric connecting part 23, and the through hole 254 is communicated with the electric connecting opening 222 of the second electric connecting part 23, so that the electric connecting opening 261 of the second electric connecting part 23 is conveniently communicated with the outside, and the front maintenance kit 2 is conveniently connected to the mounting unit 11 for electric connection.

[0055] Looking back Figure 3 With Figure 4 The back of the bottom shell 21 is provided with an upper mounting groove 6 and a lower mounting groove 7. The upper mounting groove 6 is long strip-shaped and is distributed along the length of the bottom shell 21. The upper mounting groove 6 is close to one long side of the bottom shell 21. The lower mounting groove 7 is consistent with the shape of the upper mounting groove 6, and is close to the other long side of the bottom shell 21, that is, the lower mounting groove 7 is opposite to the upper mounting groove 6 along the width direction of the bottom shell 21. The mounting unit 11 is provided with an upper convex strip 8 corresponding to the upper mounting groove 6. The upper convex strip 8 and the upper mounting groove 6 are matched with each other and are inserted into each other. Similarly, the mounting unit 11 is provided with a lower convex strip 9 corresponding to the lower mounting groove 7. The lower convex strip 9 and the lower mounting groove 7 are matched with each other and are inserted into each other. When the upper mounting groove 6 is aligned and inserted into the upper convex strip 8, and the lower mounting groove 7 is aligned and inserted into the lower convex strip 9, the bottom shell 21 is conveniently and quickly positioned, and the subsequent installation work is facilitated.

[0056] Referring to Figure 3 WithFigure 7 Each mounting unit 11 has a through-hole 10, which is rectangular and distributed along the length of the housing 1. The through-holes 10 of two mounting units 11 in a group are close to each other. When the bottom shell 21 is initially positioned on the mounting unit 11, the through-hole 254 and the electrical connection opening 222 in the second electrical connection part 23 are connected to the through-hole 10.

[0057] Reference Figure 7 and Figure 8 The mounting unit 11 is also equipped with a connecting assembly 3 for connecting the mounting unit 11, the second connector 25, and the bottom shell 21. Specifically, the connecting assembly 3 includes a mounting plate 31, which is also elongated and distributed along the length of the housing 1. The mounting plate 31 has a connection port 12. The mounting plate 31 is equipped with a second fixing bolt, and the mounting base 221 of the second electrical connection part 23 has a second fixing screw hole 32. The second fixing screw hole 32 is distributed along the thickness of the bottom shell 21, and the second fixing bolt is threaded into the second fixing screw hole 32. There are two second fixing screw holes 32, which are arranged along the length of the mounting base 221. There are two second fixing bolts corresponding to the number of second fixing screw holes 32, and the two second fixing bolts are threaded into the two second fixing screw holes 32 one by one. During installation, the bottom shell 21, the second connector 25, the mounting unit 11, and the mounting plate 251 are fixed by passing the second fixing bolt through the mounting plate 31, the mounting unit 11, the connecting plate 251 and extending into the second fixing screw hole 32, thereby fixing the mounting plate 31, the mounting unit 11 and the mounting plate 31, and the front maintenance kit 2 can be installed on the housing 1.

[0058] In addition, refer to Figure 7 and Figure 8 To prevent moisture from flowing in through the gap between the connecting plate 251 and the housing 1, a waterproof ring 28 is also provided at the connecting plate 251. The waterproof ring 28 is used to seal the gap between the second connector 25 and the mounting unit 11 (housing 1). The waterproof ring 28 is snap-fitted into the connecting plate 251 and is located on the side of the connecting plate 251 facing the mounting unit 11. This prevents moisture from entering through the gap between the connecting plate 251 and the housing 1, thereby protecting the internal circuitry or other sensitive electronic components of the equipment from damage.

[0059] When installing the front maintenance kit 2, the connecting plate 251 is inserted into the mounting seat 221 of the second electrical connection part 23 by aligning and extending into the mounting seat 221 of the second electrical connection part 23, the second plug block 252 is inserted into the waterproof slot 223 of the second electrical connection part 23, and the through hole 254 is in communication with the electrical connection opening 222 of the second electrical connection part 23. By driving the mounting plate 31, the connecting port 12 is in communication with the through port 10, and by aligning and extending the upper mounting groove 6 into the upper protruding strip 8 and the lower mounting groove 7 into the lower protruding strip 9, the bottom shell 21 is preliminarily positioned conveniently and quickly, that is, the through hole 254, the electrical connection opening 222 in the second electrical connection part 23, the through port 10 and the connecting port 12 are in communication. By inserting the second fixing bolt through the mounting plate 31, the mounting unit 11 and the connecting plate 251 and extending into the second fixing hole 32, the bottom shell 21, the second connecting head 25, the mounting unit 11 and the mounting plate 31 are fixed, and the front maintenance kit 2 is installed on the cabinet 1. By installing the front maintenance kit 2 one by one, a whole large screen is spliced.

[0060] In addition, with reference to Figure 8 and Figure 9 , the cabinet 1 is provided with a protection assembly 4. Specifically, the protection assembly 4 includes a side plate 41 arranged on the cabinet 1 and a protection plate 42 detachably connected to the side plate 41.

[0061] With reference to Figure 8 and Figure 9 , the side plate 41 is a long plate, and the side plate 41 is distributed along the length direction of the cabinet 1. The side plate 41 is provided with two, and the two side plates 41 are arranged in the width direction of the cabinet 1. The side plate 41 is away from the front maintenance kit 2, and the through ports 10 of the eight mounting units 11 are located between the two side plates 41. The cabinet 1 and the two side plates 41 form a protection space 5, and the through ports 10 of the eight mounting units 11 are in communication with the protection space 5. One side of the protection space 5 is in communication with the outside, that is, one side of the protection space 5 is an opening, so that relevant personnel can connect the lines through the opening, and part of the wires are placed in the protection space 5. A line pipe 43 is also provided on one side plate 41, which is used to connect the wires in the protection space 5 with external equipment or power supply.

[0062] With reference to Figure 8 and Figure 9The protective plate 42 is used to close the protective space 5, the protective plate 42 is also a long plate, the protective plate 42 is distributed along the length direction of the box body 1, the protective plate 42 is matched with the shape of the opening of the protective space 5, and the protective plate 42 is fixedly connected to the side plate 41 through bolts, so that the protective space 5 is closed. Therefore, the side plate 41 is matched with the box body 1, the protective space 5 is formed on the box body 1, so that relevant personnel can conveniently connect a line, part of a wire is stored in the protective space 5, the wire is connected with external equipment or a power supply through the line pipe 43. Finally, the protective plate 42 is connected to the cover plate 241 through bolts, so that the protective space 5 is closed, external moisture or dust is prevented from entering the protective space 5, moisture or dust is prevented from entering the bottom shell 21 from the connecting port 12, the wire and the PCB in the protective space 5 are prevented from being damaged, so that a fully-closed waterproof and dustproof design is realized, high strength and excellent safety are achieved, the protection level reaches IP65, and the device is beneficial to be applied to various outdoor environments.

[0063] The implementation principle of the present application is:

[0064] In use, the first connecting head 24 and the second connecting head 25 need to be installed, the cover plate 241 is aligned and inserted into the mounting seat 221, the cover plate 241 is matched with the mounting seat 221, the first plug block 242 is matched with the waterproof slot 223, the first fixing bolt is inserted into the first fixing screw hole 2211 through the cover plate 241, so that the first connecting head 24 is fixed to the bottom shell 21, external dust or moisture is prevented from entering the bottom shell 21 through the sealing effect of the cover plate 241 and the waterproof sealing ring one 243, and then the circuit or other sensitive electronic elements in the device are protected from being damaged.

[0065] Then the connecting plate 251 is aligned and inserted into the mounting seat 221 of the second electric connecting part 23, the connecting plate 251 is matched with the mounting seat 221 of the second electric connecting part 23, the second plug block 252 is matched with the waterproof slot 223 of the second electric connecting part 23, and the through hole 254 is in communication with the electric connecting opening 222 of the second electric connecting part 23, so that the electric connecting port 261 inserted into the second electric connecting part 23 is conveniently communicated with the outside, the front maintenance kit 2 is connected to the mounting unit 11, electric connection is facilitated, and moisture is prevented from entering between the connecting plate 251 and the bottom shell 21 through the sealing effect of the waterproof sealing ring one 243.

[0066] Then, the upper installation slot 6 is aligned and inserted into the upper convex strip 8, and the lower installation slot 7 is aligned and inserted into the lower convex strip 9, so that the bottom shell 21 is preliminarily positioned conveniently and quickly. The bottom shell 21, the second connecting head 25, the installation unit 11 and the installation plate 31 are fixed by passing the second fixing bolt through the installation plate 31, the installation unit 11, the connecting plate 251 and into the second fixing hole 32, so that the front maintenance kit 2 is installed on the box body 1. At the same time, the water is prevented from entering through the gap between the connecting plate 251 and the box body 1 by the box waterproof ring 28, and the circuit or other sensitive electronic elements inside the equipment are protected from being damaged.

[0067] Finally, the protection plate 42 is connected to the cover plate 241 by bolts, so that the protection space 5 is closed, water or dust is prevented from entering the bottom shell 21 from the connecting port 12, and the wires and the PCB plate in the protection space 5 are prevented from being damaged, so that the fully-closed waterproof and dustproof design is realized, high strength and excellent safety are achieved, the protection level reaches IP65, and the front maintenance kit is beneficial to be applied to various outdoor environments.

[0068] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An LED display screen spliced with front maintenance kits, comprising a box body (1), a plurality of front maintenance kits (2), characterized in that: The box (1) comprises a plurality of mounting units (11), and a plurality of front maintenance kits (2) are correspondingly mounted on the mounting units (11); The front maintenance kit (2) comprises a bottom shell (21) and a driving plate (26), the bottom shell (21) is provided with a first electric connection part (22) and a second electric connection part (23), the first electric connection part (22) is provided with a first connector (24), the second electric connection part (23) is provided with a second connector (25), the mounting unit (11) is provided with a connecting assembly (3) for connecting the box mounting unit (11), the second connector (25) and the bottom shell (21), the second connector (25), the bottom shell (21) and the mounting unit (11) are in communication with each other, the box (1) is provided with a protection assembly (4), and the driving plate (26) is provided with two electric connection ports (261) which correspondingly extend into the first electric connection part (22) and the second electric connection part (23). The protection assembly (4) comprises a side plate (41) arranged on the box (1) and a protection plate (42) detachably connected to the side plate (41), a protection space (5) is formed between the box (1) and the side plate (41), the protection space (5) is in communication with the second connector (25), the bottom shell (21) and the mounting unit (11), one side of the protection space (5) is an opening, the protection plate (42) and the opening of the protection space (5) are matched with each other, when the protection plate (42) is connected to the side plate (41), the protection plate (42) closes the opening of the protection space (5), and a line pipe (43) is further arranged on the side plate (41).

2. The LED display screen spliced by the maintenance kit before use according to claim 1, characterized in that: The front maintenance kit (2) further comprises a cover (27) arranged on the driving plate (26), and the driving plate (26) is provided with an LED lamp on a side away from the bottom shell (21), and the cover (27) is on the same side as the LED lamp.

3. The LED display screen spliced by the maintenance kit before use according to claim 2, characterized in that: The first electric connection part (22) comprises a mounting seat (221), an electric connection opening (222) arranged on the mounting seat (221) and a waterproof slot (223), the electric connection opening (222) is arranged to extend into the electric connection port (261), the electric connection opening (222) penetrates the mounting seat (221), and the waterproof slot (223) is arranged in the electric connection opening (222).

4. The LED display screen spliced by the maintenance kit before use according to claim 3, characterized in that: The first connector (24) comprises a cover plate (241) and a first plug block (242) arranged on the cover plate (241), the cover plate (241) is in plug-fit cooperation with the mounting seat (221), the first plug block (242) is in plug-fit cooperation with the waterproof slot (223), a first waterproof sealing ring (243) is arranged on the first plug block (242), and the first waterproof sealing ring (243) is used for sealing the gap between the cover plate (241) and the first electric connection part (22).

5. The LED display screen spliced by the maintenance kit before use according to claim 4, characterized in that: The cover plate (241) is provided with a first fixing bolt, and the mounting seat (221) is provided with a first fixing screw hole (2211), the first fixing bolt and the first fixing screw hole (2211) are threadedly matched with each other.

6. The LED display screen spliced by the maintenance kit before use according to claim 3, characterized in that: The second connecting head (25) comprises a connecting plate (251) and a second plug block (252) arranged on the connecting plate (251), the connecting plate (251) is insertedly matched with the mounting seat (221) of the second electric connecting part (23), the second plug block (252) is insertedly matched with the waterproof slot (223) of the second electric connecting part (23), the second plug block (252) is sleeved with a waterproof sealing ring two (253), the waterproof sealing ring two (253) is used for sealing the gap between the connecting plate (251) and the first electric connecting part (22), the connecting plate (251) is provided with a through hole (254), when the connecting plate (251) is insertedly matched with the mounting seat (221) of the second electric connecting part (23), the through hole (254) is communicated with the electric connecting opening (222) of the second electric connecting part (23).

7. The LED display screen spliced by the maintenance kit before use according to claim 1, characterized in that: The back surface of the bottom shell (21) is provided with an upper mounting groove (6) and a lower mounting groove (7), the mounting unit (11) is provided with an upper convex strip (8) corresponding to the upper mounting groove (6), the upper convex strip (8) is insertedly matched with the upper mounting groove (6), and the mounting unit (11) is provided with a lower convex strip (9) corresponding to the lower mounting groove (7), the lower convex strip (9) is insertedly matched with the lower mounting groove (7).

8. The LED display screen spliced by the maintenance kit before use according to claim 3, characterized in that: The connecting assembly (3) comprises a mounting plate (31), the mounting plate (31) is provided with a second fixing bolt, the mounting seat (221) of the second electric connecting part (23) is provided with a second fixing screw hole (32), and the second fixing bolt and the second fixing screw hole (32) are threadedly matched with each other.

9. The LED display screen spliced by the maintenance kit before use according to claim 6, characterized in that: The connecting plate (251) is further provided with a box waterproof ring (28), the box waterproof ring (28) is used for sealing the gap between the second connecting head (25) and the mounting unit (11), the box waterproof ring (28) is clampedly matched with the connecting plate (251), and the box waterproof ring (28) is located on the side of the connecting plate (251) facing the mounting unit (11).

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