A display screen

Abstract

The utility model provides a display screen, belonging to the field of LED display technology, including a back frame, a display module, a power supply box, a first connection part and a second connection part, the power supply box including a main body part and a cover part, the main body part is provided with locking pins on opposite sides, the cover part is rotatably provided with a pull ring, the pull ring is provided with a hook matching the locking pin, the first connection part is rotatably provided with a connecting block, the connecting block is provided with a plurality of splicing surfaces around its own rotation center, and the second connection part has a locking rod detachably connected to the connecting block. The cover part of the power supply box uses a hook to buckle the locking pin of the main body part to achieve installation and fixation, and only the pull ring needs to be rotated during the disassembly and assembly process, so that the disassembly and assembly efficiency can be effectively improved, and installation and maintenance and inspection are convenient. When splicing with adjacent display screens, the splicing angle can be changed based on the switching of the splicing surfaces, so that the display surfaces of the two display screens are spliced ​​at different angles.

Description

Technical Field

[0001] The utility model belongs to the technical field of LEDs, and in particular relates to a display screen. Background Art

[0002] LED display screens are generally composed of a back frame and a display module installed at the front end of the back frame, while large LED display screens are formed by splicing multiple small LED display screens. In order to facilitate control, a power box (also called a control box) will be set on the back of the LED display screen, and the relevant control lines will be connected to the power box to realize the display control of all display modules. During the installation and maintenance and repair process, the power box needs to be disassembled, and the disassembly and assembly process is relatively cumbersome. In addition, in the relevant prior art, when multiple LED display screens are spliced ​​into a large display screen, the splicing angle between the two adjacent LED display screens on the left and right is fixed, and the angle cannot be adjusted according to actual needs, which is limited. Utility Model Content

[0003] The utility model aims to solve at least one of the above technical problems existing in the prior art. To this end, the utility model provides a display screen that is convenient for disassembly and assembly of a power box, improves the efficiency of installation, maintenance and repair, and can adjust the splicing angle to improve the scope of application.

[0004] According to the display screen of the embodiment of the utility model, it comprises: a back frame, a display module, a power box, a first connection part and a second connection part, wherein the display module is detachably mounted on the front end of the back frame; the power box comprises a main body part and a cover part, the main body part is arranged on the back side of the back frame, two opposite sides of the main body part are provided with locking pins, the cover part is rotatably provided with a pull ring, the pull ring is provided with a hook matching the locking pin, and the pull ring can drive the hook to buckle the locking pin or separate from the locking pin during the rotation process, so as to realize the connection, fixation or separation between the cover part and the main body part; the first connection part is arranged on the outer side of the back frame, the first connection part is rotatably provided with a connection block, the connection block is provided with a plurality of splicing surfaces around its own rotation center, the plurality of splicing surfaces form different angles with the display surface of the display module, and the connection block can be switched by rotating any of the splicing surfaces to be exposed on the side of the back frame; the second connection part is arranged on the other side of the back frame opposite to the first connection part, and the second connection part has a locking rod detachably connected to the connection block.

[0005] The display screen according to the embodiment of the utility model has at least the following beneficial effects: With the display screen in the utility model, firstly, the cover part of the power box adopts a pull ring to control the rotation of the hook, and the hook is used to buckle the locking pin of the main part to achieve installation and fixation. During the disassembly and assembly process, only the pull ring needs to be rotated, so the disassembly and assembly efficiency can be effectively improved, and installation and maintenance and repair are convenient. Compared with the installation and fixation method using multiple screws in the prior art, the convenience is greatly improved. Secondly, the display screen in the utility model is provided with a first connecting part and a second connecting part on the opposite sides of the back frame, wherein the connecting block on the first connecting part can switch different splicing surfaces by rotating, and when splicing with an adjacent display screen, the splicing angle can be changed based on the switching of the splicing surfaces, so that the display surfaces of the two display screens are spliced ​​at different angles, which can meet more application requirements.

[0006] According to some embodiments of the utility model, the display screen also includes a third connecting portion, which is detachably mounted on the splicing surface, and the third connecting portion is provided with an adjustment surface at an end away from the splicing surface, and the angle between the adjustment surface and the display surface of the display module is smaller than or larger than the angle between the splicing surface connected by the adjustment surface and the display surface of the display module.

[0007] According to some embodiments of the utility model, each of the splicing surfaces is provided with a mounting structure, the third connecting portion is provided with a connecting structure matching the mounting structure, and can be installed on any of the splicing surfaces by matching the mounting structure with the connecting structure; or, the display screen includes a plurality of the third connecting portions, the third connecting portions correspond to the splicing surfaces one by one, and can be detachably installed on the corresponding splicing surfaces.

[0008] According to some embodiments of the present utility model, both the joint surface and the adjustment surface are provided with keyholes matching the locking rod.

[0009] According to some embodiments of the present invention, the first connecting portion is rotatably provided with an adjusting knob, and the adjusting knob is connected to the connecting block in a fixed angle manner for controlling the rotation of the connecting block.

[0010] According to some embodiments of the utility model, the main body part and the back frame are connected as an integral structure, the locking pin is arranged on the left and right sides of the upper and lower ends of the main body part, the upper and lower ends of the cover body part are respectively provided with a pull ring, the pull ring is rotatably connected to the left and right sides of the cover body part, and the hook is arranged on the left and right sides of the pull ring.

[0011] According to some embodiments of the utility model, the pull ring is respectively provided with a first limiting portion and a second limiting portion at both ends of the rotation direction of the hook, for limiting the rotation range of the hook by the first limiting portion and the second limiting portion, and the hook is an injection molded structure, and the hook portion of the hook has an interference area with the locking pin.

[0012] According to some embodiments of the present invention, the display module includes:

[0013] The LED light board is provided with a plurality of first threaded holes;

[0014] A bracket, connected to the first threaded hole by a first screw and mounted on the back of the LED light board, and the bracket is provided with an inspection window;

[0015] A cover plate is detachably connected to the back side of the bracket and covers the inspection window.

[0016] According to some embodiments of the utility model, the bracket is provided with a plurality of the inspection windows, the display module is provided with a plurality of the cover plates, and each of the cover plates covers at least one of the inspection windows.

[0017] According to some embodiments of the present invention, a magnetic module is provided between the display module and the back frame.

[0018] Additional aspects and advantages of the present invention will be partially given in the following description, and some of the additional aspects and advantages will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 It is a structural schematic diagram of the pull ring in the utility model in a buckled state;

[0021] Figure 2 It is a structural schematic diagram of the pull ring in the utility model in a dehooking state;

[0022] Figure 3 A schematic diagram of the structure of the display screen in the utility model;

[0023] Figure 4 A schematic diagram of the structure of the pull ring in the utility model;

[0024] Figure 5 A schematic diagram of an installation of a connection block;

[0025] Figure 6 A structural schematic diagram of a locking rod;

[0026] Figure 7 A structural schematic diagram of a connection block;

[0027] Figure 8 A schematic diagram of a structure in which a third connecting part is installed in a connecting block;

[0028] Fig. 9 A schematic diagram of the axial structure of the connecting block;

[0029] Fig.10 A schematic diagram of the structure decomposition of the back view of the display module;

[0030] Fig.11 A schematic diagram of a structural decomposition showing the front view of the display module;

[0031] Fig.12 A schematic diagram of the installation of the cover plate;

[0032] Fig.13 A schematic diagram of the structure of a bracket;

[0033] Fig.14 This is a schematic diagram of the connection between the LED light board and the bracket;

[0034] Fig.15 Schematic diagram of the connection between the bracket and the cover. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] LED display screens are generally composed of a back frame and a display module installed at the front end of the back frame, while large LED display screens are formed by splicing multiple small LED display screens. In order to facilitate control, a power box (also called a control box) will be set on the back of the LED display screen, and the relevant control lines will be connected to the power box to realize the display control of all display modules. During the installation and maintenance and repair process, the power box needs to be disassembled, and the disassembly and assembly process is relatively cumbersome. In addition, in the relevant prior art, when multiple LED display screens are spliced ​​into a large display screen, the splicing angle between the two adjacent LED display screens on the left and right is fixed, and the angle cannot be adjusted according to actual needs, which is limited.

[0040] To this end, the utility model provides a display screen, which is convenient for disassembly and assembly of a power box, thereby improving the efficiency of installation, maintenance and repair, and can also adjust the splicing angle to improve the scope of application.

[0041] Reference Figures 1 to 15 As shown, a display screen of an embodiment of the utility model comprises: a back frame 100, a display module 400, a power box 200, a first connection part and a second connection part 105, wherein the back frame 100 is a frame structure for supporting the display screen. The display module 400 is detachably mounted on the front end of the back frame 100 to form a display surface. The display module 400 is arranged as one or more according to the size of the back frame 100. The power box 200 comprises a main body 202 and a cover body 201, the main body 202 is arranged on the back of the back frame 100, and locking pins 304 are arranged on opposite sides of the main body 202. The cover body 201 is rotatably provided with a pull ring 300, and the pull ring 300 is provided with a hook 301 matching the locking pin 304. The pull ring 300 can drive the hook 301 to buckle the locking pin 304 or separate from the locking pin 304 during the rotation process, thereby realizing the connection, fixation or separation between the cover body 201 and the main body 202. The specific number of the pull rings 300 can be set according to the size of the power box 200 to ensure the installation stability of the cover part 201. The first connecting part is arranged on the outside of the back frame 100, and the first connecting part is rotatably provided with a connecting block 101. The connecting block 101 is provided with a plurality of splicing surfaces 102 around its own rotation center. The plurality of splicing surfaces 102 form different angles with the display surface of the display module 400. The connecting block 101 can be rotated to switch any splicing surface 102 to be exposed on the side of the back frame 100. The second connecting part 105 is arranged on the other side of the back frame 100 opposite to the first connecting part, and the second connecting part 105 has a locking rod 1051 detachably connected to the connecting block 101.

[0042] With the display screen of the present utility model, firstly, the cover part 201 of the power box 200 uses a pull ring 300 to control the rotation of the hook 301, and the hook 301 is used to buckle the lock pin 304 of the main part 202 to achieve installation and fixation. During the disassembly and assembly process, only the pull ring 300 needs to be rotated, so the disassembly and assembly efficiency can be effectively improved, and installation and maintenance and repair are convenient. Compared with the installation and fixation method using multiple screws in the prior art, the convenience is greatly improved. Secondly, the display screen of the present utility model is provided with a first connecting part and a second connecting part 105 on opposite sides of the back frame 100, wherein the connecting block 101 on the first connecting part can switch different splicing surfaces 102 by rotating, and when splicing with an adjacent display screen, the splicing angle can be changed based on the switching of the splicing surface 102, so that the display surfaces of the two display screens are spliced ​​at different angles, which can meet more application requirements.

[0043] Reference Figure 8 In some embodiments of the present invention, the display screen further comprises a third connection portion 107, which is detachably mounted on the splicing surface 102. The third connection portion 107 is provided with an adjustment surface 1071 at one end away from the splicing surface 102. The angle between the adjustment surface 1071 and the display surface of the display module 400 is smaller than or larger than the angle between the splicing surface 102 connected with the adjustment surface 1071 and the display surface of the display module 400. It can be understood that, since the connection block 101 is provided with a plurality of splicing surfaces 102 in the circumferential direction, the splicing angle between two adjacent display screens is changed by switching different splicing surfaces 102, but the number of splicing surfaces 102 is destined to be not too many. In this embodiment, by detachably providing a third connection portion 107 on the splicing surface 102, the number of angle splicing can be doubled or even more based on the number of the original splicing surfaces 102. For example, the original splicing surface 102 has four angles, which are 5°, 10°, 15° and 20°, and the increased angle of the third connecting portion 107 is 3°. Then, the third connecting portion 107 is installed on each splicing surface 102, and the angles formed are 8°, 13°, 18° and 23°, respectively. The angle value increases from the original four to eight. Therefore, the structural setting of this embodiment can further improve the angle splicing range. And the structure is simple and the cost is low.

[0044] It is understandable that only one third connection part 107 may be provided, and is used to achieve angle adjustment by being installed on different splicing surfaces 102. Multiple third connection parts 107 may also be provided, so that each splicing surface 102 is installed with one third connection part 107, or each splicing surface 102 has one or more corresponding third connection parts 107 to achieve angle change.

[0045] In order to achieve connection and fixation with the second connection part 105, in some embodiments of the present utility model, both the splicing surface 102 and the adjustment surface 1071 are provided with a keyhole 103 matching the locking rod 1051. When two adjacent display screens are spliced, it is only necessary to insert the locking rod 1051 of the second connection part 105 into the keyhole 103 of the splicing surface 102 or the adjustment surface 1071 for clamping.

[0046] Reference Figure 6 Specifically, the lock rod 1051 is a rotating telescopic structure, which is used to be inserted into the keyhole 103 by telescoping, and to achieve staggered engagement with the keyhole 103 by rotating. The specific structural form is not described in detail here, and those skilled in the art can set it according to the relevant existing technology. Figures 7 to 9 The connection block 101 is provided with a plurality of engaging cavities 106 around its own rotation center. The engaging cavities 106 penetrate the connection block 101 in the front-to-back direction, and the outer wall of the engaging cavities 106 is provided with a keyhole 103. In this way, after the locking rod 1051 is inserted into the keyhole 103, the end of the locking rod 1051 is accommodated by the engaging cavity 106. In addition, the front-to-back through-type setting helps to reduce weight, reduce material usage, and reduce costs. The third connection part 107 can adopt a frame structure to utilize the internal chamber to accommodate the locking rod 1051, or a through keyhole 103 can be provided so that the locking rod 1051 can pass through the third connection part 107 and be engaged in the engaging cavity 106.

[0047] The third connection portion 107 is mounted to each joint surface 102 by means of screws.

[0048] It is understandable that the sizes of the multiple splicing surfaces 102 can be set according to the actual inclination angle, and there is no need to ensure that the size of each splicing surface 102 is consistent.

[0049] Reference Figure 5 In some embodiments of the utility model, the first connection portion is rotatably provided with an adjusting knob 104, and the adjusting knob 104 is connected to the connection block 101 in a fixed angle manner, and is used to control the rotation of the connection block 101. The adjusting knob 104 is connected to the connection block 101 in a fixed angle manner, that is, the connection block 101 and the adjusting knob 104 can move along the axial direction of the connection block 101, so that it is convenient to set a spring to support the connection block 101. Specifically, the connection block 101 and the back frame 100 are matched with a structure similar to a bidirectional end face gear, so that when the adjusting knob 104 is rotated, the connection block 101 is separated from the back frame 100 under the action of the bidirectional end face gear, and the tooth jump and rotation are realized, and the connection block 101 is again fitted into the corresponding concave position under the action of the spring to achieve relative fixation of the angle.

[0050] Reference Figure 1 and Figure 2In some embodiments of the utility model, the main body 202 is connected to the back frame 100 as an integral structure, the locking pin 304 is arranged on the left and right sides of the upper and lower ends of the main body 202, and the upper and lower ends of the cover body 201 are respectively provided with a pull ring 300, the pull ring 300 is rotatably connected to the left and right sides of the cover body 201, and the hook 301 is arranged on the left and right sides of the pull ring 300. With the structural setting of this embodiment, the cover body 201 is fixed by buckling the locking pin 304 of the main body 202 through two pull rings 300, which can effectively improve the efficiency of disassembly and assembly. Specifically, the surrounding of the main body 202 protrudes to the back to form the main body side wall, and the locking pin 304 is formed on the left and right sides of the main body side wall. The cover body 201 corresponds to the formed cover body side wall, and the two ends of the pull ring 300 are rotatably connected to the left and right sides of the cover body side wall. The hook 301 is arranged on the outside of the pull ring 300. Both ends of the pull ring 300 are bent so that when the hook 301 is engaged with the locking pin 304 , the pull ring 300 is located outside the upper and lower ends of the power box 200 , and when the hook 301 is unhooked, the pull ring 300 is attached to the back of the power box 200 .

[0051] Reference Figures 1 to 4 In some embodiments of the utility model, the pull ring 300 is provided with a first limit portion 302 and a second limit portion 303 at both ends of the hook 301 in the rotation direction, respectively, for limiting the rotation range of the hook 301 through the first limit portion 302 and the second limit portion 303, and the hook 301 is an injection molding structure, and the hook portion of the hook 301 and the lock pin 304 have an interference area. With the structural setting of this embodiment, the hook 301 can be forcibly buckled with the lock pin 304 under the action of an external force by utilizing the interference area between the hook 301 and the lock pin 304, thereby ensuring the stability and reliability of the buckling, and preventing the occurrence of uncontrolled decoupling. Secondly, the first limiting part 302 and the second limiting part 303 are used to limit the rotation range of the hook 301, so that the pull ring 300 can have a certain free swing stroke relative to the hook 301, so that the staff can use the swing stroke to swing the pull ring 300 to an angle that is convenient for holding, and then further drive the pull ring 300 to rotate, so as to control the rotation of the hook 301 to achieve unhooking or buckling. Specifically, the hook 301 forms an interference area with the lock pin 304 by protruding an appropriate angle at the end of the hook. Since the hook 301 is an injection molded part, the hook 301 can undergo a certain elastic deformation under the action of external force, so that the hook at the end can forcibly buckle the lock pin 304, or forcibly unhook. It should be noted that the amount of interference determines the difficulty of unhooking, and those skilled in the art can flexibly set it according to actual needs.

[0052] Since the display module 400 also needs to be operated during the installation and maintenance phase, in order to improve the convenience of disassembly and assembly of the display module 400 during the process, refer to Figures 10 to 15In some embodiments of the utility model, the display module 400 includes an LED light board 401, a bracket 402 and a cover plate 403, wherein the LED light board 401 is provided with a plurality of first threaded holes. The bracket 402 is mounted on the back of the LED light board 401 by connecting the first threaded holes with the first screws, and the bracket 402 is provided with an inspection window 4022. The cover plate 403 is detachably connected to the back of the bracket 402 and covers the inspection window 4022. In the traditional structure, the display module 400 generally welds a copper column on the LED light board 401, and the cover plate 403 is directly provided with screws to thread the copper column. The copper column is easy to fall off during frequent disassembly and assembly. If the threaded holes are directly provided on the LED light board 401, the LED light board 401 is easy to be damaged during frequent disassembly and assembly, and the reliability of the threaded holes is low. In this embodiment, the cover plate 403 is arranged on the bracket 402, so there is no problem of the copper column loosening during the process of disassembling the cover plate 403, and the bracket 402 is directly connected to the LED light board 401, so the display module 400 in this embodiment does not have a copper column, completely avoiding the hidden danger of the copper column falling off. It is understandable that the cover plate 403 and the bracket 402 can also be connected by screws.

[0053] Reference Fig.12 , Fig.13 In some embodiments of the utility model, the bracket 402 is provided with a plurality of inspection windows 4022, and the display module 400 is provided with a plurality of cover plates 403, each cover plate 403 covers at least one inspection window 4022. With the structural setting of this embodiment, a certain cover plate 403 can be disassembled in a targeted manner to expose the corresponding area for maintenance and repair. Specifically, a notch is provided in the middle of the back of the bracket 402, and a plurality of support ribs 4021 are crisscrossed in the notch, and a concave step is formed between the back of the support ribs 4021 and the back of the bracket 402. The cover plate 403 includes a first cover plate 4031 and two second cover plates 4032, wherein hollow openings are provided on the left and right sides of the first cover plate 4031, and the two second cover plates 4032 are adapted to the size of the hollow openings, so as to cooperate with the first cover plate 4031 to cover the gap in the middle of the bracket 402. The second cover plate 4032 is installed and fixed with screws set diagonally. The first cover plate 4031 is installed and fixed with screws evenly distributed.

[0054] In some embodiments of the present invention, a magnetic module is provided between the display module 400 and the back frame 100 to achieve installation and fixation of the display module 400.

[0055] The present invention is described in detail above in conjunction with the embodiments, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A display screen, characterized in that: include: Back frame; A display module, detachably mounted on the front end of the back frame; The power box comprises a main body and a cover, wherein the main body is arranged on the back of the back frame, and locking pins are arranged on opposite sides of the main body. The cover is provided with a pull ring for rotation, and the pull ring is provided with a hook matching the locking pin. The pull ring can drive the hook to buckle the locking pin or separate from the locking pin during rotation, thereby realizing the connection, fixation or separation between the cover and the main body; A first connection part is arranged on the outer side of the back frame, the first connection part is rotatably provided with a connection block, the connection block is provided with a plurality of splicing surfaces around its own rotation center, the plurality of splicing surfaces form different angles with the display surface of the display module, and the connection block can be rotated to switch any of the splicing surfaces to be exposed on the side of the back frame; The second connection part is arranged on the other side of the back frame opposite to the first connection part, and the second connection part has a locking rod detachably connected to the connection block.

2. The display screen according to claim 1, characterized in that: The display screen also includes a third connecting portion, which is detachably mounted on the splicing surface. The third connecting portion is provided with an adjustment surface at an end away from the splicing surface. The angle between the adjustment surface and the display surface of the display module is smaller than or larger than the angle between the splicing surface connected by the adjustment surface and the display surface of the display module.

3. The display screen according to claim 2, characterized in that: Each of the splicing surfaces is provided with a mounting structure, the third connecting portion is provided with a connecting structure matching the mounting structure, and can be mounted on any of the splicing surfaces through the connecting structure matching the mounting structure; or, The display screen includes a plurality of the third connection parts, each of the third connection parts corresponds to the splicing surfaces one by one, and can be detachably mounted on the corresponding splicing surfaces.

4. The display screen according to claim 2, characterized in that: The joint surface and the adjustment surface are both provided with keyholes matching the locking rod.

5. The display screen according to claim 1, characterized in that: The first connecting portion is rotatably provided with an adjusting knob, and the adjusting knob is connected to the connecting block in a fixed angle manner, and is used to control the rotation of the connecting block.

6. The display screen according to claim 1, characterized in that: The main body part and the back frame are connected as an integral structure, the locking pin is arranged on the left and right sides of the upper and lower ends of the main body part, the upper and lower ends of the cover body part are respectively provided with a pull ring, the pull ring is rotatably connected to the left and right sides of the cover body part, and the hook is arranged on the left and right sides of the pull ring.

7. The display screen according to claim 1, characterized in that: The pull ring is provided with a first limiting portion and a second limiting portion at both ends of the hook in the rotation direction, respectively, for limiting the rotation range of the hook by the first limiting portion and the second limiting portion, and the hook is an injection molding structure, and the hook portion of the hook has an interference area with the locking pin.

8. The display screen according to claim 1, characterized in that: The display module comprises: The LED light board is provided with a plurality of first threaded holes; A bracket, connected to the first threaded hole by a first screw and mounted on the back of the LED light board, and the bracket is provided with an inspection window; A cover plate is detachably connected to the back side of the bracket and covers the inspection window.

9. The display screen according to claim 8, characterized in that: The bracket is provided with a plurality of the inspection windows, and the display module is provided with a plurality of the cover plates, each of which covers at least one of the inspection windows.

10. The display screen according to claim 1, characterized in that: A magnetic attraction module is arranged between the display module and the back frame.

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