LED display screen box and LED display screen

Abstract

The invention discloses an LED display screen box and an LED display screen, and relates to the technical field of LED display, and the LED display screen box comprises a first frame, a second frame, a central control box assembly and two radian locks. The first frame and the second frame are arranged on the two sides of the LED display unit respectively, the central control box assembly is arranged between the first frame and the second frame and connected with the LED display unit, the two ends of one radian lock are connected with the first frame and the central control box assembly respectively, and the two ends of the other radian lock are connected with the second frame and the central control box assembly respectively. Wherein the radian lock has a first rotation stage and a second rotation stage which are continuous, and the radian lock is configured to release the limitation on the arc adjustment operation of the LED display unit through the first rotation stage and realize the arc adjustment operation of the LED display unit through the second rotation stage. The LED display screen box is easy to operate, convenient to adjust and high in arc adjusting efficiency.

Description

Technical Field

[0001] This application relates to the technical field of LED display, and particularly to an LED display screen box body and an LED display screen including the same. Background Art

[0002] With the rapid development of the LED industry, arc-shaped LED display screen products are becoming increasingly popular in life, and have broad application prospects especially in fields such as stages and advertisements.

[0003] In related technologies, the arc of the LED display screen body is adjusted and fixed through the LED display screen box body. When adjusting the arc, first perform an unlocking operation, then adjust the arc of the screen body. When the arc of the screen body is adjusted to the required arc, perform a locking operation to fix the arc of the LED display screen body. However, for the current LED display screen box body, the unlocking and arc adjustment operations for the arc of the screen body respectively require an unlocking and an arc adjustment action. For example, after unlocking by toggling and pressing, a separate arc adjustment operation needs to be performed. The unlocking and arc adjustment actions are not continuous, resulting in high operation difficulty, low convenience, more time consumption, and affecting the arc adjustment efficiency. Summary of the Invention

[0004] The purpose of this application is to provide an LED display screen box body and an LED display screen, which solve the problems of high arc adjustment operation difficulty, low convenience, and low efficiency.

[0005] To achieve the above purpose, this application provides an LED display screen box body for installing LED display units, including:

[0006] A first frame for being arranged on the first side of the LED display unit;

[0007] A second frame for being arranged on the second side of the LED display unit;

[0008] A central control box assembly arranged between the first frame and the second frame for connecting with the LED display unit;

[0009] Two arc locks, one end of one arc lock is respectively connected with the first frame and the central control box assembly, and one end of the other arc lock is respectively connected with the second frame and the central control box assembly;

[0010] Wherein, the arc lock has continuous first and second rotation stages, and the arc lock is configured to release the restriction on the arc adjustment operation of the LED display unit through the first rotation stage and realize the arc adjustment operation of the LED display unit through the second rotation stage.

[0011] In some embodiments, any one of the arc locks includes:

[0012] A lock sleeve assembly;

[0013] A locking rod assembly is movably embedded in the locking sleeve assembly and is used to move relative to the locking sleeve assembly along a first direction;

[0014] A handle assembly is rotatably connected to the lock sleeve assembly and is used to rotate about an axis in a second direction perpendicular to the first direction;

[0015] A rotating member is engaged with the locking rod assembly and is used to rotate around an axis in the second direction to drive the locking rod assembly to move. The rotating member is provided with a limiting groove;

[0016] A positioning assembly is clamped on the handle assembly and cooperates with the rotating member, and is used to be embedded in the lock rod assembly to position the lock rod assembly, and is also used to move relative to the handle assembly along the axis of the second direction while following the rotation of the handle assembly to release the positioning of the lock rod assembly;

[0017] The limiting member is provided on the positioning assembly, and is used to move along the limiting groove in the first rotation stage of the positioning assembly to push the positioning assembly to disengage from the locking rod assembly, and is also used to push the rotating member to rotate in the second rotation stage of the positioning assembly;

[0018] The resetting elastic member has two ends respectively abutting against the positioning assembly and the locking sleeve assembly, and is used to provide elastic force so that the positioning assembly has a tendency to be embedded in the locking rod assembly.

[0019] In some embodiments, the locking bar assembly includes:

[0020] The locking rod body is provided with a rack meshing with the rotating member;

[0021] The positioning piece is connected to the locking rod body and is provided with positioning holes spaced apart along a first direction. The positioning assembly is embedded in the positioning holes to limit the movement of the locking rod body.

[0022] In some embodiments, the positioning assembly includes:

[0023] A positioning pin passes through the rotating member and is provided with an embedded end that cooperates with the positioning hole;

[0024] The toggle member is connected to the positioning pin and is used to drive the positioning pin to disengage from the positioning hole.

[0025] In some embodiments, the toggle member is provided with a snap-fitting protrusion, and the handle assembly is provided with a snap-fitting groove, and the snap-fitting groove is snap-fitted with the snap-fitting protrusion, so that the handle assembly drives the toggle member to rotate and the toggle member moves relative to the handle assembly.

[0026] In some embodiments, the arc lock further includes a resisting member and a resisting elastic member, wherein the resisting elastic member is in contact between the lock sleeve assembly and the resisting member to provide elastic force to the resisting member so that the resisting member has a tendency to move closer to the rotating member;

[0027] The rotating member is provided with abutting holes evenly distributed in the circumferential direction, and the abutting member is in positioning fit with the abutting holes.

[0028] In some embodiments, the limiting groove includes a first spiral groove and a second spiral groove. Both the first spiral groove and the second spiral groove have a first position and a second position. The first spiral groove and the second spiral groove communicate with each other at the first position. When the limiting member is in the first position, the positioning assembly is inserted into the locking rod assembly. When the limiting member is in the second position, the positioning assembly disengages from the locking rod assembly.

[0029] In some embodiments, the lock sleeve assembly includes a first sliding cover and a second sliding cover. The first sliding cover and the second sliding cover combine to form a sliding track, and the locking rod assembly slides under the guiding and limiting action of the sliding track;

[0030] The second sliding cover is provided with a mounting groove and a through hole. The rotating member is installed in the mounting groove. The through hole penetrates the mounting groove in a second direction, and the positioning assembly passes through the through hole.

[0031] In some embodiments, the two ends of the handle assembly are respectively connected with the lock sleeve assembly. The second sliding cover is provided with a rotating connection protrusion, and the handle assembly is provided with a rotating connection groove. The rotating connection protrusion is embedded in the rotating connection groove so that the handle assembly can rotate relative to the second sliding cover.

[0032] The present application also provides an LED display screen, including an LED display unit. The LED display unit includes a plurality of mutually hinged LED display modules, and further includes the LED display screen box body of any one of the above. The LED display screen box body is used for installing the LED display unit and for adjusting and fixing the radian of the LED display unit.

[0033] Compared with the above background technology, the LED display screen box body provided by the embodiments of the present application is used for installing the LED display unit, and includes a first frame, a second frame, a central control box assembly and two radian locks. The first frame and the second frame are respectively arranged on both sides of the LED display unit. The central control box assembly is arranged between the first frame and the second frame and is connected with the LED display unit. The two ends of one of the radian locks are respectively connected with the first frame and the central control box assembly, and the two ends of the other radian lock are respectively connected with the second frame and the central control box assembly. Wherein, the radian lock has a continuous first rotation stage and a second rotation stage. The radian lock is configured to release the restriction on the arc adjustment operation of the LED display unit through the first rotation stage and realize the arc adjustment operation of the LED display unit through the second rotation stage.

[0034] During the arc adjustment operation, only need to rotate the two radian locks. Specifically, in the first rotation stage of the radian lock, the restriction on the arc adjustment operation of the LED display unit can be released. In the second rotation stage of the radian lock, the arc adjustment operation of the LED display unit can be realized, so as to adjust the radian of the LED display unit to the required radian.

[0035] With such a setting, by operating the arc lock to rotate, the arc adjustment of the LED display unit is completed. Since the arc lock has a continuous rotation stage, the arc adjustment process of "unlock → adjustment" can be achieved with only one hand operation. The operation is simple, the adjustment is convenient, and the arc adjustment efficiency is high. At the same time, by rotating two arc locks, the arc of the LED display unit can be adjusted to the required arc, and the required arcs include: the state where the arc of the LED display unit is 0 degrees (at this time, the LED display unit is in a flat state), the state where the LED display unit has an inner arc of 45 degrees (at this time, the LED display unit is recessed inward and the arc is 45 degrees), the state where the LED display unit has an outer arc of 45 degrees (at this time, the LED display unit is recessed outward and the arc is 45 degrees), and the state where the LED display unit has a left inner arc of 45 degrees + a right outer arc of 45 degrees (at this time, the LED display unit is in an S shape). Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required to be used in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0037] Figure 1 Schematic diagram of the state where the LED display unit is flat in the embodiment of the present application Figure 1 。

[0038] Figure 2 Schematic diagram of the state where the LED display unit is flat in the embodiment of the present application Figure 2 。

[0039] Figure 3 Schematic diagram of the state where the LED display unit has an inner arc in the embodiment of the present application.

[0040] Figure 4 Schematic diagram of the state where the LED display unit has an outer arc in the embodiment of the present application.

[0041] Figure 5 Top view of the LED display unit in an S shape in the embodiment of the present application.

[0042] Figure 6 Axonometric view of the arc lock in the embodiment of the present application Figure 1 。

[0043] Figure 7 Axonometric view of the arc lock in the embodiment of the present application Figure 2 。

[0044] Figure 8 is Figure 7 front view of.

[0045] Figure 9 for Figure 8 Sectional view of AA.

[0046] Figure 10 for Figure 8 Cross-sectional view of DD.

[0047] Figure 11 This is an exploded view of the arc lock in the embodiment of the present application.

[0048] Figure 12 for Figure 11 Schematic diagram of the rotating parts in the arc lock shown Figure 1 .

[0049] Figure 13 for Figure 11 Schematic diagram of the rotating parts in the arc lock shown Figure 2 .

[0050] Figure 14 for Figure 11 Schematic diagram of the structure of the positioning pin in the arc lock shown.

[0051] Figure 15 for Figure 11 Schematic diagram of the structure of the toggle member in the arc lock shown.

[0052] in:

[0053] 1-Arc lock;

[0054] 2- first border;

[0055] 3- Second border;

[0056] 4-Central control box assembly;

[0057] 10-lock sleeve assembly, 11-first sliding cover, 12-second sliding cover, 121-installation groove, 122-through hole, 123-rotation connection protrusion;

[0058] 20-locking rod assembly, 21-locking rod body, 211-rack, 212-displacement scale mark, 22-positioning piece, 221-positioning hole;

[0059] 30-rotating member, 31-limiting groove, 311-first spiral groove, 312-second spiral groove, 32-top hole, 33-gear tooth portion;

[0060] 40-positioning assembly, 41-positioning pin, 411-embedded end, 42-actuating member, 421-clamping protrusion;

[0061] 50-limiting piece;

[0062] 60 - Handle assembly, 61 - Clamping groove, 62 - Rotating connection groove;

[0063] 70 - Reset elastic member;

[0064] 80 - Abutting member, 81 - Abutting elastic member;

[0065] 90 - Connection base;

[0066] 100 - LED display screen;

[0067] 110 - LED display screen box body;

[0068] 120 - LED display unit, 1200 - LED display module. Specific embodiments

[0069] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0070] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0071] Please refer to Figures 1 to 5 , the LED display screen box body 110 provided by the embodiments of the present application, which is used to install the LED display unit 120, includes a first frame 2, a second frame 3, a central control box assembly 4 and two arc locks 1.

[0072] The first frame 2 and the second frame 3 are respectively arranged on both sides of the LED display unit 120. The central control box assembly 4 is arranged between the first frame 2 and the second frame 3 and is connected to the LED display unit 120. Both ends of one arc lock 1 are respectively connected to the first frame 2 and the central control box assembly 4, and both ends of the other arc lock 1 are respectively connected to the second frame 3 and the central control box assembly 4.

[0073] Among them, the arc lock 1 has a continuous first rotation stage and a second rotation stage. The arc lock 1 is configured to release the restriction on the arc adjustment operation of the LED display unit 120 through the first rotation stage and realize the arc adjustment operation of the LED display unit 120 through the second rotation stage.

[0074] During the arc adjustment operation, only two arc locks 1 need to be rotated. Specifically, in the first rotation stage of the arc lock 1, the restriction on the arc adjustment operation of the LED display unit 120 can be released. In the second rotation stage of the arc lock 1, the arc adjustment operation of the LED display unit 120 can be realized. In this way, the arc of the LED display unit 120 can be adjusted to the required arc.

[0075] With such a setting, by operating the rotation of the arc lock 1, the arc adjustment of the LED display unit 120 is completed. Since the arc lock 1 has continuous rotation stages, the arc adjustment process of "unlock → adjustment" can be realized with only one-handed operation. The operation is simple, the adjustment is convenient, and the arc adjustment efficiency is high. At the same time, by rotating two arc locks 1, the arc of the LED display unit 120 can be adjusted to the required arc, and the required arcs include: the state where the arc of the LED display unit 120 is 0 degrees (as Figure 1 and 2 shown, at this time the LED display unit 120 is in a flat state), the state where the LED display unit 120 has an inner arc of 45 degrees (as Figure 3 shown, at this time the LED display unit 120 is recessed inward and the arc is 45 degrees), the state where the LED display unit 120 has an outer arc of 45 degrees (as Figure 4 shown, at this time the LED display unit 120 is recessed outward and the arc is 45 degrees), and the state where the LED display unit 120 has a left inner arc of 45 degrees + a right outer arc of 45 degrees (as Figure 5 shown, at this time the LED display unit 120 is in an S shape).

[0076] Of course, the arc of the LED display unit 120 is not limited to the above 0 degrees, inner arc of 45 degrees, outer arc of 45 degrees, etc., and other arcs can also be adjusted through the arc lock 1.

[0077] Please also refer to Figure 6 、 Figure 7 and Figure 8 For the convenience of realizing unlocking and arc adjustment by rotation, any arc lock 1 includes a lock sleeve assembly 10, a lock rod assembly 20, a handle assembly 60, a rotating member 30, a positioning assembly 40, and a limiting member 50.

[0078] The lock rod assembly 20 is movably embedded in the lock sleeve assembly 10, and the lock rod assembly 20 can move in the lock sleeve assembly 10 along the first direction. By moving the lock rod assembly 20 relative to the lock sleeve assembly 10, the protruding length of the lock rod assembly 20 relative to the lock sleeve assembly 10 is changed to adjust the arc of the LED display unit 120.

[0079] The handle assembly 60 is rotatably connected to the lock sleeve assembly 10, and the handle assembly 60 can rotate around its own axis, and the axis is parallel to the second direction, and the second direction is perpendicular to the first direction.

[0080] Among them, the so-called first direction can be the X-axis direction as shown in Figure 6 , and the second direction can be the Y-axis direction as shown in Figure 6 .

[0081] The rotating member 30 meshes with the locking rod assembly 20. The rotating member 30 can rotate around its own axis to drive the locking rod assembly 20 to move. This axis is parallel to the second direction. A limiting groove 31 is provided on the rotating member 30.

[0082] The positioning assembly 40 is snap-connected to the handle assembly 60. The positioning assembly 40 is penetrated and matched with the rotating member 30. The positioning assembly 40 can be embedded into the locking rod assembly 20 to achieve the positioning of the locking rod assembly 20. Moreover, the positioning assembly 40 can also rotate with the handle assembly 60 and move relatively along the axis of the second direction to release the positioning of the locking rod assembly 20.

[0083] The limiting member 50 is provided on the positioning assembly 40. The limiting member 50 is used to move along the limiting groove 31 in the first rotation stage of the positioning assembly 40 to disengage the positioning assembly 40 from the locking rod assembly 20. The limiting member 50 is also used to push the rotating member 30 to rotate in the second rotation stage of the positioning assembly 40, thereby driving the locking rod assembly 20 to move.

[0084] In addition, any arc lock 1 further includes a reset elastic member 70. The reset elastic member 70 can be a reset spring. The two ends of the reset elastic member 70 respectively abut against the positioning assembly 40 and the lock sleeve assembly 10. The reset elastic member 70 is used to provide an elastic force so that the positioning assembly 40 has a tendency to be embedded into the locking rod assembly 20. In this way, it is beneficial for the positioning assembly 40 to automatically reset and be embedded into the locking rod assembly 20 after the handle assembly 60 is released after the arc adjustment is completed, so as to achieve the repositioning of the locking rod assembly 20.

[0085] During the arc adjustment operation, the handle assembly 60 drives the positioning assembly 40 to rotate. In the first rotation stage of the positioning assembly 40, the limiting member 50 moves in the limiting groove 31, and the limiting member 50 pushes the positioning assembly 40 to disengage from the locking rod assembly 20 to release the positioning of the locking rod assembly 20. When the limiting member 50 is blocked in the limiting groove 31 and cannot move relative to the rotating member 30, the positioning assembly 40 enters the second rotation stage. The limiting member 50 pushes the rotating member 30 to rotate, and the rotating member 30 drives the locking rod assembly 20 to move relative to the lock sleeve assembly 10, so as to adjust the arc of the LED display unit 120 to the required arc. When the target arc is adjusted, the handle assembly 60 is released. Under the elastic force of the reset elastic member 70, the positioning assembly 40 is embedded into the locking rod assembly 20 to achieve the positioning of the locking rod assembly 20, thereby completing the arc adjustment operation of the LED display unit 120.

[0086] The LED display box body 110 configured in this way can achieve the full arc adjustment process of "unlock → adjust → lock" by rotating the handle assembly 60 with one hand. The operation is simple, the adjustment is convenient, and the efficiency is high. Specifically, in the first rotation stage of the positioning assembly 40, the limiting member 50 moves along the limiting groove 31, pushing the positioning assembly 40 away from the lock rod assembly 20 to achieve unlocking; in the second rotation stage of the positioning assembly 40, after being blocked, the limiting member 50 pushes the rotating member 30 to rotate, driving the lock rod assembly 20 to move to achieve arc adjustment; after releasing the handle, the reset elastic member 70 automatically pushes the positioning assembly 40 to re-embed into the lock rod assembly 20 to complete locking. At the same time, the cooperation between the limiting groove 31 and the limiting member 50 forms a physical hard limit, which not only ensures that the handle assembly 60 can only drive the lock rod assembly 20 to move within the preset angle range defined by the limiting groove 31, solving the problem of excessive adjustment error in the traditional technology, but also the positioning assembly 40 can only be separated from the lock rod assembly 20 under the push of the limiting member 50, preventing accidental unlocking under misoperation. In addition, the reset elastic member 70 provides a flexible pressure (elastic force) to the positioning assembly 40 during locking, realizing automatic locking operation by releasing the handle assembly 60 after adjusting to the target arc, and also avoiding deformation of the box body of the LED display 100 or damage to the LED display 100 caused by traditional hard locking.

[0087] It should be noted that by the relative movement of the lock rod assembly 20 and the lock sleeve assembly 10, the arc of the LED display unit 120 is adjusted to the required arc, and the LED display unit 120 can be adjusted within the set arc range. For example, when the lock rod assemblies 20 of the two arc locks 1 extend relative to the corresponding lock sleeve assemblies 10 to a certain length, the arc of the LED display unit 120 can be in a state of 0 degrees, and at this time the LED display unit 120 is in a flat state; for another example, when the lock rod assemblies 20 of the two arc locks 1 are completely retracted relative to the corresponding lock sleeve assemblies 10, the LED display unit 120 can be in a state of a 45-degree inner arc, and at this time the LED display unit 120 is recessed inward, and the arc is 45 degrees; for another example, when the lock rod assemblies 20 of the two arc locks 1 are completely extended relative to the corresponding lock sleeve assemblies 10, the LED display unit 120 can be in a state of a 45-degree outer arc, and at this time the LED display unit 120 is recessed outward, and the arc is 45 degrees; for another example, when the lock rod assembly 20 of the left arc lock 1 is completely retracted relative to the corresponding lock sleeve assembly 10 and the lock rod assembly 20 of the right arc lock 1 is completely extended relative to the corresponding lock sleeve assembly 10, the LED display unit 120 can be in a state of a 45-degree left inner arc + a 45-degree right outer arc, and at this time the LED display unit 120 is in an S shape.

[0088] Please refer to Figure 9 、 Figure 10 and Figure 11The lock rod assembly 20 includes a lock rod body 21 and a positioning member 22. In order to facilitate the engagement between the lock rod body 21 and the rotating member 30, the lock rod body 21 is provided with a rack 211 engaged with the rotating member 30, and the rotating member 30 is provided with a gear portion 33 engaged with the rack 211, and the gear portion 33 is accommodated in the lock rod body 21; the positioning member 22 is connected to the lock rod body 21 through a fastener, and the positioning member 22 is accommodated in the lock rod body 21. In this way, the positioning member 22 is embedded in the positioning assembly 40 to achieve the purpose of positioning the lock rod body 21.

[0089] Specifically, the positioning member 22 can be a positioning plate structure, and the positioning member 22 is provided with positioning holes 221 spaced apart along the first direction. The spacing between two adjacent positioning holes 221 can be set to be the same. After the arc adjustment is completed, the positioning assembly 40 is embedded in the positioning hole 221 to limit the movement of the locking rod body 21, thereby achieving the purpose of positioning the locking rod body 21.

[0090] Please also read Figure 11 , Figure 14 and Figure 15 The positioning assembly 40 includes a positioning pin 41 and a toggle member 42. The positioning pin 41 passes through the rotating member 30, and the positioning pin 41 is provided with an embedding end 411 that matches the positioning hole 221. The embedding end 411 is an embedding end 411 with a certain taper, so that the tip of the embedding end 411 can be smoothly embedded in the positioning hole 221; the toggle member 42 is connected to the positioning pin 41, and is used to drive the positioning pin 41 to disengage from the positioning hole 221 to release the positioning of the lock rod body 21.

[0091] In order to facilitate the connection between the toggle member 42 and the positioning pin 41, the toggle member 42 is provided with an axial connection hole, and the positioning pin 41 is interference fitted in the connection hole to achieve synchronous movement of the toggle member 42 and the positioning pin 41 during the arc adjustment process.

[0092] To facilitate installation of the resetting elastic member 70 , an annular protrusion is provided at one end of the toggle member 42 close to the positioning member 22 . One end of the resetting elastic member 70 abuts against the inner side of the annular protrusion, and the other end abuts against the inner wall of the lock sleeve assembly 10 .

[0093] In this way, when the handle assembly 60 drives the toggling member 42 to rotate, under the combined action of the limiting member 50 and the limiting groove 31, the limiting member 50 pushes the positioning pin 41 out of the positioning hole 221 to release the positioning of the lock rod body 21. During the process of releasing the positioning, the reset elastic member 70 accumulates elastic potential energy. Continuing to rotate the handle assembly 60, the limiting member 50 pushes the rotating member 30 to rotate, and the rotating member 30 drives the lock rod body 21 to move relative to the lock sleeve assembly 10, thereby achieving the purpose of arc adjustment. After the arc adjustment is completed, releasing the toggling member 42, the elastic potential energy accumulated by the reset elastic member 70 is released, causing the positioning pin 41 to automatically reset and embed into the positioning hole 221, thereby realizing the repositioning of the lock rod body 21.

[0094] In some embodiments, the toggling member 42 is provided with a clamping protrusion 421, and the handle assembly 60 is provided with a clamping groove 61. The clamping protrusion 421 is movably installed in the clamping groove 61 so that the handle assembly 60 drives the toggling member 42 to rotate and the toggling member 42 moves relative to the handle assembly 60.

[0095] That is to say, through the clamping cooperation of the clamping protrusion 421 and the clamping groove 61, while transmitting the torque of the handle assembly 60 to the toggling member 42, the toggling member 42 can also axially move relative to the handle assembly 60, thereby achieving the purpose of unlocking.

[0096] To facilitate accurately controlling the length of the lock rod body 21 extending relative to the lock sleeve assembly 10, the lock rod body 21 is provided with a displacement scale mark 212. The displacement scale mark 212 is used to indicate the current length of the lock rod body 21 extending relative to the lock sleeve assembly 10. The difference between two adjacent scales in the displacement scale mark 212 is equal to the distance between two adjacent positioning holes 221.

[0097] The LED display arc lock further includes a pressing member 80 and a pressing elastic member 81. The pressing elastic member 81 is abutted between the lock sleeve assembly 10 and the pressing member 80 to provide an elastic force to the pressing member 80, so that the pressing member 80 has a tendency to move closer to the rotating member 30.

[0098] Please refer to Figure 13 together. The rotating member 30 is provided with abutting holes 32 evenly distributed in the circumferential direction. The pressing member 80 is in positioning cooperation with the abutting holes 32. Among them, the pressing member 80 is in a spherical shape, the abutting holes 32 are round holes, and the pressing elastic member 81 is a pressing spring.

[0099] In this way, when the required arc is adjusted, the pressing member 80 rotates from the previous abutting hole 32 to the next abutting hole 32, and a predetermined sound and a predetermined sense of force will be generated, thereby providing feedback of sound and strength to the operator.

[0100] At the same time, the locking rod body 21 is configured to extend relative to the locking sleeve assembly 10 by one unit scale of the displacement scale mark 212 when the abutting member 80 passes through two adjacent abutting holes 32. In this way, it is convenient to further accurately control the extension length of the locking rod body 21 relative to the locking sleeve assembly 10.

[0101] Please also read Figure 12 The limiting groove 31 may be a combined spiral groove. Specifically, the limiting groove 31 includes a first spiral groove 311 and a second spiral groove 312. The first spiral groove 311 and the second spiral groove 312 both have a first position and a second position. The first spiral groove 311 and the second spiral groove 312 are connected at the first position. When the limiting member 50 is in the first position, the positioning assembly 40 is embedded in the locking rod assembly 20. When the limiting member 50 is in the second position, the positioning assembly 40 is separated from the locking rod assembly 20. Of course, the limiting member 50 is specifically a limiting bead.

[0102] It should be noted that the first position is the highest point of the first spiral groove 311 or the second spiral groove 312 , and correspondingly, the second position is the lowest point of the first spiral groove 311 or the second spiral groove 312 .

[0103] In this way, when the locating pin 41 is embedded in the locating hole 221, the limit member 50 is located at the highest point position of the first spiral groove 311 or the second spiral groove 312. As the toggle member 42 enters the first rotation stage, the limit member 50 moves along the spiral groove from the highest point position to the lowest point position. When the limit member 50 reaches the lowest point position, the locating pin 41 disengages from the locating hole 221 to achieve unlocking. Thereafter, the toggle member 42 enters the second rotation stage. Since the limit member 50 is blocked at the lowest point position of the spiral groove and cannot continue to rotate relative to the rotating member 30, it can only push the rotating member 30 to rotate together to achieve the movement of the locking rod body 21. After the arc adjustment is completed, the toggle member 42 is released, and the locating pin 41 is reset under the elastic force of the reset elastic member 70 and is re-embedded in the other locating holes 221. At this time, the limit member 50 returns to the highest point position along the spiral groove from the lowest point position.

[0104] It should be noted that, during the process of unlocking and relocking the positioning pin 41, the limiting member 50 only moves in one spiral groove in both positive and negative directions. The purpose of setting another spiral groove is that when the limiting member 50 is at the highest point of the first spiral groove 311 or the second spiral groove 312, the operator can rotate the toggle member 42 in both clockwise and counterclockwise directions. For example, when rotating in the clockwise direction, the limiting member 50 moves from the highest point to the lowest point along the first spiral groove 311, and when rotating in the counterclockwise direction, the limiting member 50 moves from the highest point to the lowest point along the second spiral groove 312.

[0105] In some embodiments, the lock sleeve assembly 10 includes a first sliding cover 11 and a second sliding cover 12. The first sliding cover 11 and the second sliding cover 12 are combined to form a sliding track, and the lock rod assembly 20 slides under the guiding and limiting action of the sliding track. In this way, during the arc adjustment process, the movement of the lock rod body 21 relative to the lock sleeve assembly 10 can be guided and limited, ensuring the stability of the movement of the lock rod body 21.

[0106] In addition, the second sliding cover 12 is provided with a mounting groove 121 and a through hole 122. The mounting groove 121 is located inside the through hole 122. The rotating member 30 is installed in the mounting groove 121. The through hole 122 and the mounting groove 121 communicate with each other in the second direction, and the positioning assembly 40 passes through the through hole 122.

[0107] In this way, the rotating member 30 can rotate in the mounting groove 121, which is beneficial to protecting the rotating member 30 and ensuring the adjustment accuracy and service life of the adjustment module.

[0108] In some embodiments, both ends of the handle assembly 60 are respectively connected to the lock sleeve assembly 10. The second sliding cover 12 is provided with a rotation connection protrusion 123, and the handle assembly 60 is provided with a rotation connection groove 62. The rotation connection protrusion 123 is embedded in the rotation connection groove 62 so that the handle assembly 60 can rotate relative to the second sliding cover 12.

[0109] In this way, the entire arc lock 1 has an I-shaped structure. During the arc adjustment operation, the positioning assemblies 40 at the upper and lower ends are driven to rotate by the handle assembly 60. In the first rotation stage, the limiting member 50 pushes the positioning assembly 40 to disengage from the corresponding lock rod assembly 20 to achieve unlocking. In the second rotation stage, the limiting member 50 pushes the rotating member 30 to rotate, and the rotating member 30 drives the lock rod assembly 20 to move relative to the corresponding lock sleeve assembly 10 and adjusts the arc of the LED display screen to the required arc. When the target arc is adjusted, the handle assembly 60 is released. Under the elastic force of the reset elastic member 70, the positioning assembly 40 is embedded in the corresponding lock rod assembly 20 to reposition the lock rod assembly 20, thereby completing the arc adjustment operation of the LED display screen.

[0110] In addition, both the lock sleeve assembly 10 and the lock rod assembly 20 are hinged with a connecting seat 90. The connecting seat 90 can rotate around the axis of a certain rotation axis, and this axis is parallel to the second direction.

[0111] Specifically, the left and right ends of the LED display unit 120 are respectively connected to the left and right two frames. One end of the left arc lock is connected to the first frame 2 through the connecting seat 90, and the other end can be connected to the middle central control box assembly 4 through the connecting seat 90. One end of the right arc lock is connected to the second frame 3 through the connecting seat 90, and the other end can be connected to the middle central control box assembly 4 through the connecting seat 90.

[0112] Working principle: First, install two arc locks 1 on the corresponding frame and the central control box assembly 4. During the arc adjustment operation, just rotate the handle assembly 60 with one hand. In the first rotation stage, the lock rod assembly 20 is switched from the locked state to the unlocked state. In the second rotation stage, the lock rod assembly 20 moves relative to the lock sleeve assembly 10 to achieve arc adjustment. After the adjustment is completed, release the handle assembly 60 to achieve automatic reset locking, thus completing the arc adjustment operation of the LED display unit 120.

[0113] This application also provides an LED display screen 100, which includes an LED display unit 120. The LED display unit 120 includes a plurality of mutually articulated LED display modules 1200. It also includes the LED display screen box body 110 described in the above specific embodiments. The LED display screen box body 110 is used to install the LED display unit 120 and to adjust and fix the arc of the LED display unit 120.

[0114] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0115] The above has introduced the LED display screen box body and the LED display screen provided by this application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the solution and its core idea of this application. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of this application, several improvements and modifications can still be made to this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. An LED display box for installing LED display units, characterized in that, include: A first frame, used to be arranged on a first side of the LED display unit; A second frame, used to be arranged on a second side of the LED display unit; A central control box assembly, disposed between the first frame and the second frame, and used to connect with the LED display unit; Two arc locks, wherein two ends of one of the arc locks are respectively connected to the first frame and the central control box assembly, and two ends of the other arc lock are respectively connected to the second frame and the central control box assembly; The arc lock has a continuous first rotation stage and a second rotation stage, and the arc lock is configured to release the restriction on the arc adjustment operation of the LED display unit through the first rotation stage and implement the arc adjustment operation of the LED display unit through the second rotation stage.

2. The LED display box according to claim 1, characterized in that, Any of the arc locks comprises: Lock sleeve assembly; A locking rod assembly, movably embedded in the locking sleeve assembly, and configured to move relative to the locking sleeve assembly along a first direction; A handle assembly, rotatably connected to the lock sleeve assembly, for rotating about an axis in a second direction perpendicular to the first direction; A rotating member, engaged with the locking rod assembly, and configured to rotate around an axis in the second direction to drive the locking rod assembly to move, wherein the rotating member is provided with a limiting groove; A positioning assembly, which is clamped to the handle assembly and cooperates with the rotating member, is used to be embedded in the lock rod assembly to position the lock rod assembly, and is also used to move relative to the handle assembly along the axis of the second direction while following the rotation of the handle assembly to release the positioning of the lock rod assembly; a limiting member, provided on the positioning assembly, for moving along the limiting groove in the first rotation stage of the positioning assembly to push the positioning assembly to disengage from the locking rod assembly, and for pushing the rotating member to rotate in the second rotation stage of the positioning assembly; The resetting elastic member has two ends respectively abutting against the positioning assembly and the locking sleeve assembly, and is used to provide elastic force so that the positioning assembly has a tendency to be embedded in the locking rod assembly.

3. The LED display box according to claim 2, wherein, The locking rod assembly comprises: The locking rod body is provided with a rack meshing with the rotating member; The positioning member is connected to the locking rod body and is provided with positioning holes spaced apart along the first direction. The positioning assembly is embedded in the positioning holes to limit the movement of the locking rod body.

4. The LED display box according to claim 3, characterized in that, The positioning component comprises: A positioning pin, passing through the rotating member, and provided with an embedded end matched with the positioning hole; A toggle member is connected to the positioning pin and is used to drive the positioning pin to disengage from the positioning hole.

5. The LED display box according to claim 4, characterized in that, The toggle member is provided with a clamping protrusion, and the handle assembly is provided with a clamping groove, and the clamping groove is clamped and matched with the clamping protrusion, so that the handle assembly drives the toggle member to rotate and the toggle member moves relative to the handle assembly.

6. The LED display box according to any one of claims 2-5, characterized in that, The arc lock further comprises a resisting member and a resisting elastic member, wherein the resisting elastic member is in contact between the lock sleeve assembly and the resisting member to provide elastic force to the resisting member so that the resisting member has a tendency to move close to the rotating member; The rotating member is provided with abutment holes evenly distributed along the circumferential direction, and the abutment member is positioned and matched with the abutment holes.

7. The LED display box according to any one of claims 2-5, characterized in that, The limiting groove includes a first helical groove and a second helical groove. Both the first helical groove and the second helical groove have a first position and a second position. The first helical groove and the second helical groove communicate with each other at the first position. When the limiting member is at the first position, the positioning assembly is embedded in the locking rod assembly. When the limiting member is at the second position, the positioning assembly disengages from the locking rod assembly.

8. The LED display box according to any one of claims 2-5, characterized in that, The locking sleeve assembly includes a first sliding cover and a second sliding cover. The first sliding cover and the second sliding cover combine to form a sliding track, and the locking rod assembly slides under the guiding and limiting action of the sliding track. The second sliding cover is provided with a mounting groove and a through hole. The rotating member is installed in the mounting groove. The through hole penetrates the mounting groove in the second direction, and the positioning assembly passes through the through hole.

9. The LED display box according to claim 8, characterized in that, Both ends of the handle assembly are respectively connected with the locking sleeve assembly. The second sliding cover is provided with a rotation connection protrusion, and the handle assembly is provided with a rotation connection groove. The rotation connection protrusion is embedded in the rotation connection groove so that the handle assembly rotates relative to the second sliding cover.

10. An LED display screen, comprising an LED display unit, wherein the LED display unit includes a plurality of mutually hinged LED display modules, characterized in that, It further includes an LED display screen box body according to any one of claims 1-9. The LED display screen box body is used for installing the LED display unit and for adjusting and fixing the radian of the LED display unit.

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