Display screen and connecting lock thereof

Abstract

The embodiment of the utility model provides a display screen and a connecting lock thereof, the connecting lock comprises a mounting rod, a lock rod and a transmission assembly, the two end parts of the mounting rod are respectively provided with a lock sleeve and a lock hole, and the middle part of the mounting rod is hinged with a handle; the lock rod is connected to the end, provided with the lock sleeve, of the mounting rod. The other end of the transmission assembly is connected with the end, away from the lock sleeve, of the lock rod. At least one lock bead is arranged on the periphery of the end, away from the handle, of the lock sleeve, the transmission assembly is driven to move through rotation of the handle, and then the lock rod is driven to reciprocate in the lock sleeve, so that the lock bead protrudes out of the surface of the lock sleeve or retracts into the lock sleeve. In the embodiment of the utility model, the lock bead of one display screen connecting lock can be pushed out of the surface of the lock sleeve by the inclined surface at the end part of the lock rod, and the end part of the lock sleeve and the lock bead are limited in the lock hole of the other display screen connecting lock, so that the two display screens are connected, and the whole operation is extremely simple; and the efficiency of assembling and disassembling a plurality of display screens is greatly improved.

Description

Technical Field

[0001] The present application relates to the field of LED display technology, and in particular to a display screen and a connection lock thereof. Background Art

[0002] With the development of LED display technology, LED screens are widely used in large display screens such as exhibitions and concerts. At present, such large display screens are usually spliced ​​together by multiple screens. When assembling, you usually hold the carrying handle behind the screen and move the screen. After the screen is installed in place, you can connect the two screens through the connection lock. When splitting two adjacent screens, you also hold the carrying handle first, unlock the connection lock, and then move the screen away through the carrying handle behind the screen. The operation is relatively cumbersome, which seriously affects the efficiency of multi-screen assembly and disassembly. Utility Model Content

[0003] In view of the above problems, embodiments of the present application are proposed to provide a display screen and a connection lock thereof that solve the above problems or at least partially solve the above problems.

[0004] In a first aspect, an embodiment of the present application provides a connection lock, which includes:

[0005] The mounting rod has locking sleeves and locking holes at its two ends and a handle hinged in the middle;

[0006] A locking rod, arranged in the end of the mounting rod provided with the locking sleeve;

[0007] A transmission assembly, one end of which is connected to the handle, and the other end of which is connected to the end of the locking rod away from the locking sleeve;

[0008] Among them, at least one locking bead is provided on the outer periphery of the end of the locking sleeve away from the handle, and the rotation of the handle drives the transmission assembly to move, thereby driving the locking rod to move back and forth in the locking sleeve so that the locking bead protrudes from the surface of the locking sleeve or retracts into the locking sleeve.

[0009] Furthermore, after the end of the locking sleeve is inserted into the locking hole of the other mounting rod, when the locking rod moves toward the handle, the locking ball is pushed out by the inclined surface of the end of the locking rod, and the end of the locking sleeve and the locking ball are confined in the locking hole.

[0010] Furthermore, an inclined block is provided on the inner wall of the lock hole, and when the lock rod moves away from the handle and the lock sleeve is pulled out of the lock hole, the lock ball is pushed back into the lock sleeve by the inclined block.

[0011] Further, the transmission assembly includes a first transmission member and a second transmission member;

[0012] One end of the first transmission member is connected to the handle, and the other end is connected to the second transmission member. The end of the second transmission member away from the first transmission member is connected to the end of the locking rod away from the locking sleeve.

[0013] Furthermore, the second transmission member is a U-shaped groove member buckled on the mounting rod;

[0014] The mounting rod is provided with a first sliding groove near the handle, and the mounting rod is provided with a second sliding groove near the lock sleeve;

[0015] A first shaft capable of reciprocating in the first slide groove is provided in the first slide groove, an end of the U-shaped groove member away from the lock sleeve is connected to the first shaft, and an end of the first transmission member away from the handle is connected to the first shaft;

[0016] A second shaft capable of reciprocating in the second slide groove is arranged in the second slide groove, one end of the U-shaped groove member close to the locking sleeve is connected to the second shaft, and the end of the locking rod away from the locking sleeve is connected to the second shaft.

[0017] Furthermore, the handle is provided with a locking rod facing the mounting rod, and the surface of the mounting rod is provided with a first groove and a second groove;

[0018] The end of the locking rod can extend out of the handle and be inserted into the first slot or the second slot, or be retracted into the handle.

[0019] Furthermore, a push-twist device capable of driving the locking rod to move is provided on the surface of the handle, and a spring is provided inside the handle, one end of the spring abuts against the handle, and the other end of the spring abuts against the locking rod.

[0020] In a second aspect, an embodiment of the present application further provides a display screen, comprising:

[0021] Multiple frameworks;

[0022] A plurality of display modules, wherein the display modules are fixedly connected to one side of the frame;

[0023] A plurality of connecting locks as described in any one of the first aspects, wherein the connecting locks are arranged in the frame, and the lock sleeves and lock holes of the connecting locks are respectively connected to opposite sides of the frame;

[0024] Among them, at least one locking bead is provided on the outer periphery of the end of the locking sleeve of the connecting lock of one of the frames, and the locking bead is protruded from the surface of the locking sleeve or retracted into the locking sleeve by the reciprocating movement of the locking rod in the locking sleeve. When the locking bead protrudes from the surface of the locking sleeve, it is restricted in the locking hole of the connecting lock of the other frame together with the end of the locking sleeve, so that the two frames are connected.

[0025] Furthermore, the display module includes a circuit board connected to one side of the frame and LED lamp beads arranged in an array on a side of the circuit board away from the frame.

[0026] Furthermore, the circuit board includes a plurality of partitions that cross each other vertically and horizontally and a plurality of through holes, and the LED lamp beads are arranged at the intersections of the partitions.

[0027] In the technical solution provided in the embodiment of the present application, after the end of the lock sleeve of a display screen connecting lock is inserted into the lock hole of another connecting member mounting rod, the lock rod moves to the end close to the lock sleeve, and the lock bead is pushed out by the inclined surface of the end of the lock rod. The end of the lock sleeve and the lock bead are restricted in the lock hole of the other display screen connecting lock, thereby connecting the two display screens. The whole operation is extremely simple, which greatly improves the efficiency of assembling and disassembling multiple display screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A three-dimensional structural schematic diagram of a connection lock provided by an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of a partial cross-sectional structure of a connecting lock provided by an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of another partial cross-sectional structure of a connecting lock provided in an embodiment of the utility model;

[0032] Figure 4 A three-dimensional structural schematic diagram of a display screen provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the embodiments of the present application.

[0034] It should be noted that, in the description of this application, if the terms "first", "second", etc. appear, "first" and "second" are only used to facilitate the description of different components or names, and cannot be understood as indicating or implying a sequential relationship, relative importance, or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" appears in the full text, its meaning is that it includes three parallel solutions, taking "A and / or B as an example", including Solution A, or Solution B, or a solution that satisfies both A and B.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0036] Please refer to Figure 1 , is a three-dimensional structural schematic diagram of a connecting lock provided by an embodiment of the utility model, wherein the connecting lock includes a mounting rod 10, a locking rod 20 and a transmission assembly 30.

[0037] The two ends of the mounting rod 10 are respectively provided with a locking sleeve 110 and a locking hole 120, and a handle 130 is hinged in the middle; the locking rod 20 is designed to be inside the end of the mounting rod 10 provided with the locking sleeve 110; one end of the transmission assembly 30 is connected to the handle 130, and the other end is connected to the end of the locking rod 20 away from the locking sleeve 110; wherein, at least one locking ball 1101 is provided on the outer periphery of the end of the locking sleeve 110 away from the handle 130, and the rotation of the handle 130 drives the transmission assembly 30 to move, thereby driving the locking rod 20 to reciprocate in the locking sleeve 110 so that the locking ball 1101 protrudes from the surface of the locking sleeve 110 or retracts into the locking sleeve 110.

[0038] Specifically, please combine Figure 2, is a partial cross-sectional structural diagram of a connection lock provided by an embodiment of the utility model, wherein the mounting rod 10 is generally a long rod-shaped structure made of metal material, the locking sleeve 110 and the locking hole 120 are located at two ends of the mounting rod 10, and when the two mounting rods 10 are connected to each other, the locking sleeve 110 of the previous mounting rod 10 will be inserted into the locking hole 120 of the next mounting rod 10, so that the two mounting rods 10 are plug-connected, the handle 130 is hinged at a position close to the middle of the mounting rod 10, and the handle 130 can rotate relative to the mounting rod 10 around the hinge point; the locking rod 20 is arranged in the end of the mounting rod 10 away from the locking hole 120, that is, in the end close to the locking sleeve 110, and its end may be extended out of the end of the locking sleeve 110 , or it may be hidden in the lock sleeve 110 all the time; the transmission assembly 30 is arranged on the mounting rod 10, one end of which is located at the middle position of the mounting rod 10 and is connected to the handle 130, and the other end extends on the mounting rod 10 to the end close to the lock sleeve 110 and is connected to the end of the lock rod 20 facing the handle, wherein the connection between the transmission assembly 30 and the handle 130 and the lock rod 20 includes but is not limited to connection through a connecting shaft or the like; at least one lock bead 1101 is provided on the outer wall at the end of the lock sleeve 110 away from the handle 130, that is, at the front end position of the lock sleeve 110, wherein the lock bead 1101 is generally a spherical structure, which can protrude from the surface of the lock sleeve 110 or retract into the lock sleeve 110.

[0039] When using two connecting locks of the embodiments of the utility model for connection, such as when two display screens with the connecting locks of the embodiments of the utility model are connected, the locking sleeves 110 and the locking holes 120 on the two mounting rods 10 are plugged and connected. At this time, the transmission assembly 30 can be driven to move by rotating the handle 130, thereby driving the locking rod 20 inside the mounting rod 10 to move back and forth, thereby driving the locking ball 1101 to protrude from the surface of the locking sleeve 110, thereby making the locking ball 1101 together with the front end of the locking sleeve 110 confined in the locking hole 120, thereby connecting the two connecting locks and the two display screens. The whole operation is extremely simple, which greatly improves the efficiency of assembling and disassembling multiple display screens.

[0040] Furthermore, please combine Figure 2In other preferred embodiments of the utility model, after the end of the locking sleeve 110 is inserted into the locking hole 120 of the other mounting rod 10, when the locking rod is moved toward the handle 130, the locking ball 1101 is pushed out by the inclined surface 210 at the end of the locking rod 20, and the end of the locking sleeve 110 and the locking ball 1101 are confined in the locking hole 120.

[0041] Specifically, when the two connecting locks are connected, after the end of the locking sleeve 110 of one mounting rod 10 is inserted into the locking hole 120 of the other mounting rod 10, the locking rod 20 is driven by the handle 130 to move in the mounting rod 10 toward the handle 130, so that the inclined surface 210 of the locking rod 20 pushes the locking bead 1101 out of the surface of the locking sleeve 110, so that the size of the locking sleeve 110 at the position of the locking bead 1101 is larger than the aperture of the locking hole 120, thereby making the locking sleeve 110 The front end portion together with the locking bead 1101 is restricted in the locking hole 120, so that the two connecting locks are connected; when the two connecting locks need to be disassembled, it is only necessary to rotate the handle 130 to drive the locking rod 20 to move in opposite directions in the mounting rod 10, and the locking bead 1101 retracts into the locking sleeve 110. At this time, only the locking sleeve 110, because its diameter is smaller than the aperture of the locking hole 120, can be easily taken out of the locking sleeve 110 from the locking hole 120, so that the two connecting locks are completely disassembled.

[0042] Furthermore, an inclined block 1201 is provided on the inner wall of the lock hole 120 , and when the lock rod 20 moves away from the handle 130 , the lock ball 1101 is pushed back into the lock sleeve 110 by the inclined block 1201 .

[0043] Specifically, the inclined block 1201 is arranged on the inner wall of the lock hole 120 towards the lock ball 1101. When the lock rod 20 moves away from the handle 130, the inclined surface 210 will not contact the lock ball 1101, and the lock ball 1101 will lose its outward thrust. At this time, if the lock sleeve 110 is pulled out of the lock hole 120, the lock ball 1101 will move toward the inside of the lock sleeve 110 under the thrust of the external inclined block 1201, that is, it is pushed back into the lock sleeve 110 by the inclined block 1201. At this time, only the lock sleeve 110 is in the lock hole 120. Because its diameter is smaller than the aperture of the lock hole 120, the lock sleeve 110 can be easily taken out of the lock hole 120, so that the two connected locks are completely disassembled.

[0044] In addition, the transmission assembly 30 includes a first transmission member 310 and a second transmission member 320;

[0045] One end of the first transmission member 310 is connected to the handle 130 , and the other end is connected to the second transmission member 120 . The end of the second transmission member 320 away from the first transmission member 310 is connected to the end of the locking rod 20 away from the locking sleeve 110 .

[0046] Specifically, the transmission assembly 30 is arranged on the outside of the mounting rod 10, and is a two-stage transmission structure composed of the first transmission member 310 and the second transmission member 320. The first transmission member 310 and the second transmission member 320 are connected in a hinged form. The end of the first transmission member 310 away from the second transmission member 320 is connected to the handle 130, and the end of the second transmission member 320 away from the first transmission member 320 is connected to the end of the locking rod 20 away from the locking sleeve 110.

[0047] Further, the second transmission member 320 is a U-shaped groove member 3201 buckled on the mounting rod 10;

[0048] The mounting rod 10 is provided with a first sliding groove 101 near the handle 130 , and the mounting rod 10 is provided with a second sliding groove 102 near the lock sleeve 110 ;

[0049] A first shaft 111 capable of reciprocating in the first slide groove 101 is provided in the first slide groove 101, an end of the U-shaped groove member 3201 away from the lock sleeve 110 is connected to the first shaft 111, and an end of the first transmission member 310 away from the handle 130 is connected to the first shaft 111;

[0050] The second slide groove 102 is provided with a second shaft 112 that can reciprocate in the slide groove. The end of the U-shaped groove 3201 close to the locking sleeve 110 is connected to the second shaft 112 , and the end of the locking rod 20 away from the locking sleeve 110 is connected to the second shaft 112 .

[0051] Specifically, the U-shaped groove 3201 is buckled on the mounting rod 10 to form a semi-enclosed position for the mounting rod 10, and the first transmission member 310 is two respectively arranged on opposite sides of the mounting rod 10; the first slide groove 101 and the second slide groove 102 are respectively arranged on the mounting rod 10 near the handle 130 and the lock sleeve 110, and the first shaft 111 and the second shaft 112 are respectively provided in the first slide groove 101 and the second slide groove 102, and the two shafts can reciprocate in the two slide grooves respectively, and the end of the U-shaped groove 3201 away from the lock sleeve 110 is connected to the first shaft 111, the end of the first transmission member 310 away from the handle 130 is connected to the first shaft 111, the end of the U-shaped groove 3201 close to the lock sleeve 110 is connected to the second shaft 112, and the end of the lock rod 20 away from the lock sleeve 110 is connected to the second shaft 112. With such a structure, the lock rod 20 can be driven to move back and forth in the installation rod 10 and the lock sleeve 110 by rotating the handle 130 .

[0052] Furthermore, the handle 130 is provided with a locking rod 1301 facing the mounting rod 10, and the surface of the mounting rod 10 is provided with a first groove 11 and a second groove 12;

[0053] An end of the locking rod 1301 can extend out of the handle 130 and be inserted into the first slot 11 or the second slot 12 , or be retracted into the handle 130 .

[0054] Specifically, the first groove 11 and the second groove 12 are arranged one in front of the other on the surface of the mounting rod 10, and the sizes of the first groove 11 and the second groove 12 are preferably able to accommodate the end of the locking rod 1301. When the handle 130 is rotated, the end of the locking rod 1301 can extend out of the handle 130 and can be switched between being inserted into the first groove 11 and the second groove 12 to lock the rotation angle of the handle 130. For example, when the handle 130 is operated so that the end of the locking rod 1301 is inserted into the first groove 11, the locking bead 1101 is pushed out of the locking sleeve 110 by the inclined surface 210 of the locking rod 20, so that the end of the locking sleeve 110 and the locking bead 1101 are confined in the locking hole 120 to complete the locking of the two connected locks; if the handle 130 is rotated away from the mounting rod 10 so that the end of the locking rod 1301 is inserted into the second groove 12, the locking bead 1101 is pushed back into the locking sleeve 110 by the inclined block 1201, and the locking sleeve 110 can be taken out of the locking hole 120, so that the two connected locks are completely disassembled.

[0055] Furthermore, the surface of the handle 130 is provided with a push-button 1302 capable of driving the locking rod 1301 to move, and a spring 1303 is provided inside the handle 130 , one end of the spring 1303 abuts against the handle 130 , and the other end of the spring 1303 abuts against the locking rod 1301 .

[0056] Specifically, when the push knob 1302 is pushed, the end of the locking rod 1301 can be retracted into the handle 130, thereby releasing the lock between the locking rod 1301 and the first groove 11 or the second groove 12, making it easier to rotate the handle 130. After the force on the push knob 1302 is removed, under the action of the pushing force of the spring 1303, the end of the locking rod 1301 will extend out of the end of the handle 130 and be inserted into the first groove 11 or the second groove 12, thereby locking the rotation angle of the handle 130.

[0057] Please combine Figure 4 , is a three-dimensional structural schematic diagram of a display screen provided by an embodiment of the utility model, wherein the display screen comprises:

[0058] Multiple frames 1;

[0059] A plurality of display modules 2, wherein the display modules 2 are fixedly connected to one side of the frame 1;

[0060] A plurality of connecting locks 3 as described in any of the above embodiments, wherein the connecting locks 3 are arranged in the frame 1, and the lock sleeves 110 and the lock holes 120 of the connecting locks 3 are respectively connected to opposite sides of the frame 1;

[0061] Among them, at least one locking bead 1101 is provided on the outer periphery of the end of the locking sleeve 110 of the connecting lock 3 of one of the frames 1, and the locking rod 20 reciprocates in the locking sleeve 110 so that the locking bead 1101 protrudes from the surface of the locking sleeve 110 or retracts into the locking sleeve 110. When the locking bead 1101 protrudes from the surface of the locking sleeve 110, it is restricted in the locking hole 120 of the connecting lock 3 of the other frame 1 together with the end of the locking sleeve 110, so that the two frames 1 are connected.

[0062] Specifically, the frame 1 is generally a polygonal structure, the connecting lock 3 is arranged in the frame 1, the locking sleeve 110 and the locking hole 120 are fixedly connected to two opposite sides of the frame 1, and the end of the locking sleeve 110 will extend out of the frame 1, and at least one locking bead 1101 is arranged at the end, and the locking rod 20 of the connecting lock 3 on the frame 1 reciprocates in the locking sleeve 110 so that the locking bead 1101 protrudes from the surface of the locking sleeve 110 or retracts into the locking sleeve 110; The display module 2 is connected to one side of the frame 1, and the specific connection form includes but is not limited to screw connection; when the two frames 1 need to be connected, the locking sleeve 110 on one frame 1 is inserted into the locking hole 120 on the other frame 1, and then the handle 130 is rotated so that the locking bead 1101 protrudes from the surface of the locking sleeve 110, and together with the end of the locking sleeve 110, is restricted in the locking hole 120 of the connecting lock 3 of the other frame 1, thereby connecting the two frames 1.

[0063] Here, for the specific structure, connection relationship and technical effects that can be achieved of the connecting lock 3, please refer to the description of the above embodiments, which will not be repeated here.

[0064] Furthermore, the display module 2 includes a circuit board 21 connected to one side of the frame 1 and LED lamp beads 22 arranged in an array on a side of the circuit board 21 away from the frame 1 .

[0065] Specifically, the circuit board 21 is detachably connected to one side of the frame 1 through connecting members such as screws, and the plurality of LED lamp beads 22 are arranged in an array on a side of the circuit board 21 away from the frame 1 to form a display surface.

[0066] Furthermore, the circuit board 21 includes a plurality of partitions that cross each other in a vertical and horizontal direction and a plurality of through holes, and the LED lamp beads 22 are arranged at the intersections of the partitions.

[0067] Specifically, a plurality of through holes are provided on the circuit board 21, and these through holes are formed by a plurality of vertically and horizontally intersecting partitions of the circuit board 21. The through holes here are used to allow light to pass through, so as to achieve the effect of a transparent screen, so as to expand the use scope of the display screen.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model, rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the embodiments of the utility model.

Claims

1. A connection lock, characterized in that: include: The mounting rod has locking sleeves and locking holes at its two ends and a handle hinged in the middle; A locking rod, arranged in the end of the mounting rod provided with the locking sleeve; A transmission assembly, one end of which is connected to the handle, and the other end of which is connected to the end of the locking rod away from the locking sleeve; Among them, at least one locking bead is provided on the outer periphery of the end of the locking sleeve away from the handle, and the rotation of the handle drives the transmission assembly to move, thereby driving the locking rod to move back and forth in the locking sleeve so that the locking bead protrudes from the surface of the locking sleeve or retracts into the locking sleeve.

2. The connecting lock according to claim 1, characterized in that: After the end of the locking sleeve is inserted into the locking hole of the other mounting rod, when the locking rod moves toward the handle, the locking ball is pushed out by the inclined surface of the end of the locking rod, and the end of the locking sleeve and the locking ball are confined in the locking hole.

3. The connecting lock according to claim 2, characterized in that: An inclined block is provided on the inner wall of the lock hole. When the lock rod moves away from the handle and the lock sleeve is pulled out of the lock hole, the lock ball is pushed back into the lock sleeve by the inclined block.

4. The connecting lock according to claim 1, characterized in that: The transmission assembly includes a first transmission member and a second transmission member; One end of the first transmission member is connected to the handle, and the other end is connected to the second transmission member. The end of the second transmission member away from the first transmission member is connected to the end of the locking rod away from the locking sleeve.

5. The connecting lock according to claim 4, characterized in that: The second transmission member is a U-shaped groove member buckled on the mounting rod; The mounting rod is provided with a first sliding groove near the handle, and the mounting rod is provided with a second sliding groove near the lock sleeve; A first shaft capable of reciprocating in the first slide groove is provided in the first slide groove, an end of the U-shaped groove member away from the lock sleeve is connected to the first shaft, and an end of the first transmission member away from the handle is connected to the first shaft; A second shaft capable of reciprocating in the second slide groove is arranged in the second slide groove, one end of the U-shaped groove member close to the locking sleeve is connected to the second shaft, and the end of the locking rod away from the locking sleeve is connected to the second shaft.

6. The connecting lock according to claim 1, characterized in that: The handle is provided with a locking rod facing the mounting rod, and the surface of the mounting rod is provided with a first groove and a second groove; The end of the locking rod can extend out of the handle and be inserted into the first slot or the second slot, or be retracted into the handle.

7. The connecting lock according to claim 6, characterized in that: The handle surface is provided with a push-twist capable of driving the locking rod to move, and a spring is provided inside the handle, one end of the spring abuts against the handle, and the other end of the spring abuts against the locking rod.

8. A display screen, characterized in that: include: Multiple frameworks; A plurality of display modules, wherein the display modules are fixedly connected to one side of the frame; A plurality of connecting locks according to any one of claims 1 to 7, wherein the connecting locks are arranged in the frame, and the lock sleeves and lock holes of the connecting locks are respectively connected to opposite sides of the frame; Among them, at least one locking bead is provided on the outer periphery of the end of the locking sleeve of the connecting lock of one of the frames, and the locking bead is protruded from the surface of the locking sleeve or retracted into the locking sleeve by the reciprocating movement of the locking rod in the locking sleeve. When the locking bead protrudes from the surface of the locking sleeve, it is restricted in the locking hole of the connecting lock of the other frame together with the end of the locking sleeve, so that the two frames are connected.

9. The display screen according to claim 8, characterized in that: The display module includes a circuit board connected to one side of the frame and LED lamp beads arranged in an array on a side of the circuit board away from the frame.

10. The display screen according to claim 9, characterized in that: The circuit board includes a plurality of partitions that cross each other in a vertical and horizontal direction and a plurality of through holes, and the LED lamp beads are arranged at the intersections of the partitions.

Images