Box frame and display screen

Abstract

The utility model relates to the technical field of display screens, and discloses a box body frame and a display screen, the box body frame comprises a frame body and display module protection mechanisms, the display module protection mechanisms are arranged at the two opposite ends of the frame body, and each display module protection mechanism comprises a protection plate, a connecting frame and an elastic piece, the protection plate extends along the length direction of the end part of the frame body; the connecting frame is arranged on one side of the protective plate, a containing cavity is formed in the frame body, the elastic piece is arranged in the containing cavity and connected with the connecting frame, a preset included angle is formed between the telescopic direction of the elastic piece and the protective plate, and the connecting frame can retract into the containing cavity and compress the elastic piece when stressed; the elastic piece can drive the connecting frame to extend out of the containing cavity so that the connecting frame can drive the protection plate to extend to the front side of the display module. The display screen applying the box body frame not only can effectively protect the display module, but also improves the installation efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen technical field especially relates to a box frame and display screen. BACKGROUND

[0002] LED display screen is applied to various occasions as the main carrier of media propagation, and most of the LED display screens are usually assembled by splicing multiple display screens when used outdoors. Since the display screen is usually provided without a frame, the lamp beads at the edge of the display module will be damaged or fall off when subjected to a small collision or external force, affecting the product quality.

[0003] At present, a baffle covering the display module in front of the box frame is arranged at four corners of the box frame, but the baffle needs to be manually controlled to retract, and the installation personnel needs to manually operate the baffle to retract when splicing the box frame, which is low in installation efficiency. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a box frame and display screen, which can effectively protect the display module and improve the installation efficiency.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The box frame comprises:

[0007] a frame body;

[0008] a display module protection mechanism arranged at opposite ends of the frame body, the display module protection mechanism comprising a protection plate, a connecting frame and an elastic member, the protection plate extending along the length direction of the end of the frame body; the connecting frame being arranged on one side of the protection plate, the frame body being provided with a receiving cavity, the elastic member being arranged in the receiving cavity and connected with the connecting frame, the elastic member being arranged at a preset angle with the protection plate in the extension direction, the connecting frame being capable of retracting into the receiving cavity and compressing the elastic member under stress; the elastic member being capable of driving the connecting frame to extend out of the receiving cavity so that the connecting frame drives the protection plate to extend to the front side of the display module.

[0009] As an optional solution of the box frame, the bottom surface of the receiving cavity is an inclined surface, the inclined surface is arranged at the preset angle with the protection plate, and the bottom surface of the connecting frame is parallel to the inclined surface; the inclined surface is provided with a groove, the bottom surface of the groove is parallel to the inclined surface, the elastic member is arranged in the groove, and the bottom surface of the connecting frame is provided with a connecting column, which is inserted into the elastic member in a direction perpendicular to the inclined surface.

[0010] As an optional scheme of the box frame, a guide groove parallel to the center line of the inclined surface is arranged on the connecting frame, a guide piece is arranged in the accommodating cavity, the guide piece is matched with the guide groove, and the guide piece provides a guide for the movement of the protection plate.

[0011] As an optional scheme of the box frame, two sides of the accommodating cavity are both arranged as openings, one side opening is a telescopic entrance of the connecting frame, the other side opening is an installation entrance of the connecting frame, the installation entrance is closed by a baffle, one end of the guide piece is connected with the baffle after passing through the guide groove, and the other end is connected with the side wall of the accommodating cavity opposite to the baffle.

[0012] As an optional scheme of the box frame, two guide pieces are arranged at intervals, one of the guide pieces can abut against one end of the guide groove, and the other guide piece can abut against the other end of the guide groove.

[0013] As an optional scheme of the box frame, the display module protection mechanism further comprises a limiting assembly, the limiting assembly is telescopically arranged on the frame body, a limiting hole is arranged on the protection plate, and the limiting assembly is used for being matched with the limiting hole to fix the protection plate when the protection plate is extended to the front side of the display module.

[0014] As an optional scheme of the box frame, a mounting hole perpendicular to the protection plate is arranged on the frame body, and the limiting assembly is arranged in the mounting hole.

[0015] The limiting assembly comprises a limiting column and a limiting spring, the limiting column comprises a limiting end and a column body, the outer diameter of the limiting end is greater than the outer diameter of the column body, the limiting spring is sleeved outside the column body, one end of the limiting spring is connected with the mounting hole, the other end is abutted against the limiting end, and the end of the limiting end away from the column body can abut against the limiting hole.

[0016] As an optional scheme of the box frame, the limiting end comprises a limiting part and a pressing part, the limiting part is arranged between the column body and the pressing part, the outer diameter of the limiting part is greater than the outer diameter of the pressing part, the limiting part can abut against the limiting hole, the limiting column is pressed through the pressing part, the limiting part is separated from the limiting hole, the protection plate is further provided with an avoiding groove, and the avoiding groove extends along the movement direction of the protection plate.

[0017] A display screen comprises a display module and the box frame according to any one of the above schemes, and the display module is arranged on the front side of the box frame.

[0018] As an alternative to the display screen, the display module includes an LED light plate and a bottom shell, the LED light plate is arranged on the front side of the bottom shell, and the end of the bottom shell is provided with a receiving groove, and the protection plate can be retracted into the receiving groove.

[0019] The utility model discloses beneficial effect:

[0020] The utility model provides a box frame, the lamp pearl of display module edge is protected through the display module protection mechanism of setting display module protection mechanism to the opposite both ends of frame body. Display module protection mechanism includes protection plate, connecting frame and elastic piece, and protection plate extends along the length direction of the end of frame body, realizes the full coverage of display module edge lamp pearl. Connecting frame is used for connecting protection plate with frame body, and connecting frame is arranged in the receiving cavity and is connected with elastic piece, and the stretchable direction of elastic piece is set with protection plate and presents the preset angle, so that the elastic driving force of elastic piece to protection plate is inclined direction, when elastic piece elongation drives connecting frame to stretch out from the receiving cavity, protection plate moves to the forward side and moves to the direction away from frame body, when connecting frame is forced to retract the receiving cavity and compresses elastic piece, protection plate moves to the rear side and moves to the direction close to frame body, realizes the effective protection of display module when protection plate stretches out, can be received in the end of frame body when retracting, does not influence the stacking splicing of box frame. Moreover, when the box frame is stacked, the display module protection mechanism of adjacent two box frames abuts each other, realizes the automatic contraction of connecting frame and protection plate, when adjacent two box frames are separated, connecting frame is pushed out obliquely under the elastic restoring force of elastic piece, realizes the automatic stretching of protection plate, and the display module is protected, need not manual operation of installation personnel, improves installation efficiency.

[0021] The utility model provides a display screen, including display module and above -mentioned box frame, this display screen not only realizes the effective protection to display module, and convenient multiple display screen's splicing, improves installation efficiency. ACCURATE DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of the display screen provided by the utility model embodiment;

[0023] Figure 2 It is the exploded schematic diagram of the box frame provided by the utility model embodiment;

[0024] Figure 3 It is the side sectional view of the display screen when protection plate is in the state of stretching out;

[0025] Figure 4 It is Figure 3 The local enlarged view of A in the middle;

[0026] Figure 5is a side sectional view of the display screen when the protective plate is in a contracted state according to an embodiment of the present utility model;

[0027] Figure 6 is Figure 5 the local enlarged view of B in the middle.

[0028] in the figure:

[0029] 100, box frame;

[0030] 200, display module; 201, bottom shell; 2011, containing recess; 202, LED lamp plate;

[0031] 1, frame body; 11, containing cavity; 111, inclined surface; 1111, groove; 12, guide screw; 13, baffle; 131, connecting hole; 132, perforation; 14, mounting hole; 15, fixing screw;

[0032] 2, display module protection mechanism; 21, protective plate; 211, limiting hole; 212, avoiding slot; 22, connecting frame; 221, connecting column; 222, guide slot; 23, elastic piece; 24, limiting assembly; 241, limiting column; 2411, column body; 2412, limiting part; 2413, pressing part; 242, limiting spring. DETAILED DESCRIPTION

[0033] The embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, and cannot be understood as a limitation of the present utility model.

[0034] In the description of the present utility model, it should be noted that the orientations or position relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or position relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0035] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", "fixing" should be construed as broadest possible, for example, can be fixed connection, can also be detachable connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] Unless otherwise defined, "on" or "under" of the first feature to the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] The technical scheme of the utility model will be further illustrated below by specific embodiments in combination with the drawings.

[0038] As shown in Figure 1 and Figure 3 , the embodiment provides a display screen, which comprises a display module 200 and a box frame 100, and the display module 200 is arranged on the front side of the box frame 100. The display module 200 comprises an LED lamp plate 202 and a bottom shell 201, the LED lamp plate 202 is arranged on the front side of the bottom shell 201, and the LED lamp plate 202 is arranged with lamp beads.

[0039] In order to protect the lamp beads on the edge of the LED lamp plate 202 from falling off or being damaged when subjected to slight collision or external force, and affect the product quality, as shown in Figure 2 , the embodiment also provides a box frame 100 applied to the display screen, which comprises a frame body 1 and a display module protection mechanism 2, and the display module protection mechanism 2 is arranged on the opposite ends of the frame body 1, so as to protect the lamp beads on the edge of the LED lamp plate 202. The display module protection mechanism 2 is telescopically arranged on the frame body 1, and when the display screens are stacked and spliced, the display module protection mechanisms 2 on the adjacent two frame bodies 1 abut against each other, so that the two display module protection mechanisms 2 are automatically retracted to be flush with the end of the frame body 1, and the splicing of the display screens is not affected. When the display screen is placed alone, the display module protection mechanism 2 is automatically extended to the front side of the display module 200 to protect the lamp beads on the edge of the LED lamp plate 202.

[0040] The display module protection mechanism 2 comprises a protection plate 21, a connecting frame 22 and an elastic member 23. The protection plate 21 extends along the length direction of the end of the frame body 1, and realizes full coverage of the edge lamp beads of the display module 200. Figures 2-6 As shown in the figure, the connecting frame 22 is arranged on one side of the protection plate 21, the frame body 1 is provided with a receiving cavity 11, the elastic member 23 is arranged in the receiving cavity 11 and connected with the connecting frame 22, the extension direction of the elastic member 23 is arranged at a preset angle with the protection plate 21, so that the elastic driving force of the elastic member 23 to the protection plate 21 is in an inclined direction. When the elastic member 23 is elongated to drive the connecting frame 22 to extend out of the receiving cavity 11, the protection plate 21 moves to the front side and at the same time moves away from the frame body 1. When the connecting frame 22 is forced to retract into the receiving cavity 11 and compress the elastic member 23, the protection plate 21 moves to the rear side and at the same time moves close to the frame body 1. Thus, the protection plate 21 can effectively protect the display module 200 when it is extended, and can be accommodated in the end of the frame body 1 when it is retracted, without affecting the stacking and splicing of the cabinet frame 100. The connecting frame 22 can be forced to retract into the receiving cavity 11 and compress the elastic member 23. The elastic member 23 can drive the connecting frame 22 to extend out of the receiving cavity 11, so that the connecting frame 22 drives the protection plate 21 to extend to the front side of the display module 200. When the cabinet frame 100 is stacked, the display module protection mechanisms 2 of the adjacent two cabinet frames 100 abut each other, so as to automatically retract the connecting frame 22 and the protection plate 21. When the adjacent two cabinet frames 100 are separated, the connecting frame 22 is inclined and pushed out under the action of the elastic restoring force of the elastic member 23, so as to automatically extend the protection plate 21 and protect the display module 200. Manual operation of the installation personnel is not required, and the installation efficiency is improved.

[0041] The receiving cavity 11 is arranged on the rear side of the frame body 1, so that the frame body 1 is compatible with the base function of the display module protection mechanism 2, reduces the accessories and reduces the cost. At the same time, the connection of the protection plate 21 is more stable and reliable.

[0042] Further, the end of the bottom shell 201 is provided with a containing groove 2011, and the protection plate 21 can be retracted into the containing groove 2011. In order to ensure that the protection plate 21 can be flush with the end of the display screen when it is retracted, the containing groove 2011 is arranged on the end of the bottom shell 201. When the display module protection mechanisms 2 abut each other, the connecting frame 22 compresses the elastic member 23 to retract into the receiving cavity 11, and the protection plate 21 retracts to the rear side and at the same time moves downward into the containing groove 2011, so as not to affect the splicing of the adjacent cabinet frames 100.

[0043] Specifically, the connecting frame 22 is provided with two, and the two connecting frames 22 are arranged on the two ends of the same side of the protection plate 21. The two connecting frames 22 connect the protection plate 21, so as to ensure the stability of driving the protection plate 21 to extend and retract.

[0044] In an embodiment, the bottom surface of the accommodating cavity 11 is an inclined surface 111, the inclined surface 111 is at a preset angle with the protection plate 21, the bottom surface of the connecting frame 22 is parallel to the inclined surface 111; and the inclined surface 111 is provided with a groove 1111, the bottom surface of the groove 1111 is parallel to the inclined surface 111, the elastic member 23 is arranged in the groove 1111, the bottom surface of the connecting frame 22 is provided with a connecting column 221, the connecting column 221 is inserted into the elastic member 23 along a direction perpendicular to the inclined surface 111. The elastic member 23 is a spring, the connecting column 221 is inserted between the spirals of the spring, when the connecting frame 22 is subjected to a pressing force, the connecting frame 22 drives the connecting column 221 to compress the spring, and the connecting frame 22 is retracted into the accommodating cavity 11; when the pressing force on the connecting frame 22 is removed, the connecting frame 22 is driven to extend out of the accommodating cavity 11 by the elastic restoring force of the spring, and then the protection plate 21 is moved away from the accommodating recess 2011 to the front side of the display module 200.

[0045] Exemplarily, the preset angle is 45°, the longitudinal section of the connecting frame 22 is an isosceles triangle, the elastic member 23 is connected to the hypotenuse of the isosceles triangle, so that the force of the elastic member 23 on the connecting frame 22 is inclined upward. Of course, in other embodiments, the preset angle can also be 30° or 60°, which is specifically designed according to the moving distance of the protection plate 21.

[0046] In an embodiment, the connecting frame 22 is provided with a guide groove 222 with a center line parallel to the inclined surface 111, and the accommodating cavity 11 is provided with a guide member, the guide member cooperates with the guide groove 222 to provide guidance for the movement of the protection plate 21. When the guide member abuts against one end of the guide groove 222, the protection plate 21 extends to a first limit position, and when the guide member abuts against the other end of the guide groove 222, the protection plate 21 retracts to a second limit position. By arranging the guide member, the limit positions of the connecting frame 22 during extension and retraction are limited, so as to ensure that the protection plate 21 extends to the limit position of the front side of the display module 200, and retracts to the limit position in the accommodating recess 2011. The guide groove 222 is arranged on the side plate of the connecting frame 22.

[0047] Further, the guide members are arranged at intervals, one of which can abut against one end of the guide groove 222, and the other of which can abut against the other end of the guide groove 222. The two guide members limit the first limit position of the connecting frame 22 during extension and the second limit position during retraction, and at the same time provide a guiding effect for the movement of the connecting frame 22, so that the connecting frame 22 moves stably along the inclined surface 111 during movement and does not deviate.

[0048] In an embodiment, two adjacent sides of the accommodating cavity 11 are provided with openings, one of which is a telescopic entrance of the connecting frame 22, and the other is an installation entrance of the connecting frame 22, which is closed by the baffle 13. The guide member is connected to the baffle 13 at one end after passing through the guide groove 222, and connected to the side wall of the accommodating cavity 11 opposite to the baffle 13 at the other end. The accommodating cavity 11 is directly formed on the frame body 1, and has a fixing function of the display module protection mechanism 2. In order to facilitate the installation and telescoping of the connecting frame 22, two adjacent sides of the accommodating cavity 11 are provided with openings. When installing, the connecting frame 22 enters the accommodating cavity 11 from the installation entrance. The baffle 13 is provided with a connecting hole 131 in the circumferential direction, and the fixing screw 15 passes through the connecting hole 131 and is fixedly connected to the circumferential direction of the installation entrance of the accommodating cavity 11. The guide member is provided as a guide screw 12. The baffle 13 is provided with a through hole 132. The guide screw 12 passes through the through hole 132 and the guide groove 222, and is then screwed to the side wall of the accommodating cavity 11 opposite to the baffle 13. The head of the guide screw 12 is clamped on the baffle 13.

[0049] After the protection plate 21 extends to the front side of the display module 200, in order to avoid the protection plate 21 from retracting due to accidental touch of the installer, the effective protection of the lamp beads cannot be achieved. The display module protection mechanism 2 further comprises a limiting assembly 24, which is telescopically arranged on the frame body 1. The protection plate 21 is provided with a limiting hole 211. The limiting assembly 24 is used to cooperate with the limiting hole 211 when the protection plate 21 extends to the front side of the display module 200 to fix the protection plate 21. The limiting assembly 24 is telescopically arranged. Only when the protection plate 21 extends to the front side of the display module 200, the limiting assembly 24 can extend out to cooperate with the limiting hole 211 to fix the protection plate 21, preventing the protection plate 21 from retracting due to accidental touch. When the protection plate 21 retracts into the accommodating groove 2011, the limiting assembly 24 retracts, without affecting the movement of the protection plate 21 to the rear side.

[0050] In an embodiment, the frame body 1 is provided with an installation hole 14 with a center line perpendicular to the protection plate 21, and the limiting assembly 24 is arranged in the installation hole 14. The limiting assembly 24 comprises a limiting column 241 and a limiting spring 242. The limiting column 241 comprises a limiting end and a column body 2411. The outer diameter of the limiting end is larger than that of the column body 2411. The limiting spring 242 is sleeved outside the column body 2411. One end of the limiting spring 242 is connected to the installation hole 14, and the other end is in abutment with the limiting end. The end of the limiting end away from the column body 2411 can be in abutment with the limiting hole 211. When the display module protection mechanisms 2 on the adjacent two cabinet frames 100 abut each other, the limiting column 241 can retract into the installation hole 14 to disengage from the limiting hole 211 under the pressure. When the external force on the limiting column 241 is removed, i.e. when the adjacent two cabinet frames 100 are separated, the limiting column 241 extends out of the installation hole 14 to cooperate with the limiting hole 211 to fix the protection plate 21 under the elastic restoring force of the limiting spring 242.

[0051] The mounting hole 14 is arranged as a stepped hole including a first hole, a second hole and a third hole with increasing diameters in sequence, the limiting spring 242 is arranged in the second hole, one end of the limiting spring 242 abuts against the connection between the second hole and the first hole, and the other end abuts against the limiting end, so that the limiting end is slidably arranged in the third hole.

[0052] In an embodiment, the limiting end includes a limiting portion 2412 and a pressing portion 2413, the limiting portion 2412 is arranged between the column body 2411 and the pressing portion 2413, and the outer diameter of the limiting portion 2412 is greater than the outer diameter of the pressing portion 2413, the limiting portion 2412 can abut against the limiting hole 211; by pressing the limiting column 241 through the pressing portion 2413, the limiting portion 2412 can be disengaged from the abutment against the limiting hole 211. The protection plate 21 is further provided with an avoiding groove 212 extending along the moving direction of the protection plate 21. When the box body frame 100 is stacked, the two pressing portions 2413 abut against each other, so that the limiting column 241 is retracted into the mounting hole 14, and by arranging the avoiding groove 212, the pressing portion 2413 is located in the avoiding groove 212 during the retraction of the protection plate 21 with the connecting frame 22, and the protection plate 21 is not limited to be retracted. The limiting hole 211 is arranged on the side of the avoiding groove 212 close to the mounting hole 14, and the limiting hole 211 is located on the side of the avoiding groove 212 close to the connecting frame 22, when the protection plate 21 is extended to the first limit position on the front side of the display module 200, the stepped surface between the limiting portion 2412 and the pressing portion 2413 abuts against the hole bottom of the limiting hole 211, so as to fix the protection plate 21, so that the protection plate 21 will not be retracted when being touched by mistake by the installer.

[0053] The display screen provided by the utility model, including display module 200 and above-mentioned box body frame 100, not only realize effective protection to display module 200, and convenient for the assembly of multiple display screens, improve the installation efficiency.

[0054] The above content is only the preferred embodiment of the utility model, for the ordinary skilled person in the art, according to the thought of the utility model, in specific implementation and application range, will have the change, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A box frame, characterized in that, The application relates to a display module protection mechanism. The application relates to a display module protection mechanism. The bottom surface of the accommodating cavity (11) is an inclined surface (111), the inclined surface (111) and the protection plate (21) form a preset angle, the bottom surface of the connecting frame (22) is parallel to the inclined surface (111), the inclined surface (111) is provided with a groove (1111), the bottom surface of the groove (1111) is parallel to the inclined surface (111), the elastic element (23) is arranged in the groove (1111), and the bottom surface of the connecting frame (22) is provided with a connecting column (221) which is inserted into the elastic element (23) along a direction perpendicular to the inclined surface (111).

2. The box frame of claim 1, wherein, The connecting frame (22) is provided with a guide groove (222) with a center line parallel to the inclined surface (111), the accommodating cavity (11) is provided with a guide element, the guide element is matched with the guide groove (222), and the guide element provides guidance for the movement of the protection plate (21).

3. The box frame of claim 2, wherein, The two adjacent sides of the accommodating cavity (11) are provided with openings, one side opening is a retracting entrance of the connecting frame (22), the other side opening is an installation entrance of the connecting frame (22), the installation entrance is closed through a baffle (13), one end of the guide element is connected with the baffle (13) after passing through the guide groove (222), and the other end is connected with the side wall of the accommodating cavity (11) opposite to the baffle (13).

4. The box frame of claim 3, wherein, The two guide elements are arranged at intervals, one guide element can abut against one end of the guide groove (222), and the other guide element can abut against the other end of the guide groove (222).

5. The box frame of claim 3, wherein, The display module protection mechanism (2) further comprises a limiting assembly (24) which is arranged in the frame body (1) in an extendable and retractable mode, the protection plate (21) is provided with a limiting hole (211), and the limiting assembly (24) is used for cooperating with the limiting hole (211) to fix the protection plate (21) when the protection plate (21) extends to the front side of the display module (200).

6. The box frame of claim 1, wherein, ​ 7. The box frame of claim 6, wherein, The frame body (1) is provided with a mounting hole (14) perpendicular to the protection plate (21) along the center line, and the limiting assembly (24) is arranged in the mounting hole (14); The limiting assembly (24) comprises a limiting column (241) and a limiting spring (242), the limiting column (241) comprises a limiting end and a column body (2411), the outer diameter of the limiting end is larger than that of the column body (2411), the limiting spring (242) is sleeved outside the column body (2411), one end of the limiting spring (242) is connected with the mounting hole (14), the other end is in abutment with the limiting end, and the end of the limiting end away from the column body (2411) can be in abutment with the limiting hole (211).

8. The box frame of claim 7, wherein, The limiting end comprises a limiting portion (2412) and a pressing portion (2413), the limiting portion (2412) is arranged between the column body (2411) and the pressing portion (2413), the outer diameter of the limiting portion (2412) is larger than that of the pressing portion (2413), and the limiting portion (2412) can be in abutment with the limiting hole (211); the limiting portion (2412) can be separated from the limiting hole (211) by pressing the limiting column (241) through the pressing portion (2413); the protection plate (21) is further provided with an avoiding groove (212) extending along the moving direction of the protection plate (21).

9. A display screen characterised in that The display module (200) is arranged on the front side of the box frame.

10. The display screen of claim 9, wherein, The display module (200) comprises an LED lamp plate (202) and a bottom shell (201), the LED lamp plate (202) is arranged on the front side of the bottom shell (201), the end of the bottom shell (201) is provided with a containing groove (2011), and the protection plate (21) can be retracted into the containing groove (2011).

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