An arc-shaped lock and a display screen assembly

Abstract

The present invention belongs to the technical field of display screens, and particularly relates to an arc-shaped lock and a display screen assembly. The arc-shaped lock includes a first lock body and a second lock body; the first lock body includes an angle adjustment component, a disengaging kit, a locking kit, and a locking member. The angle adjustment component is used to adjust the splicing angle. A cavity for accommodating the disengaging kit is provided inside the angle adjustment component. The locking kit is arranged inside the disengaging kit, and the locking member is arranged on the outer wall of the locking kit; the second lock body includes a lock rod, and a card slot is provided on the lock rod. The disengaging kit moves relative to the locking kit, so that the locking member moves towards the lock rod under the extrusion of the disengaging kit and is locked in the card slot to achieve the temporary fixation of the first lock body and the second lock body. In the present invention, the locking member moves along with the locking kit, and the disengaging kit pushes the locking member, so that the locking member is stuck in the card slot, realizing the interlocking of the first lock body and the second lock body, simplifying the splicing process of the unit display screen, being convenient for installation, and improving the splicing efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of display screens, and particularly relates to an arc lock and a display screen assembly. Background Art

[0002] A display screen is a device for displaying information such as text, images, videos, and recordings. Due to the advantages of high brightness, low working voltage, low power consumption, large size, long lifespan, impact resistance, and stable performance in light emission, display screens have been widely used in many fields.

[0003] Currently, large display screens are formed by splicing multiple small unit display screens through a locking device. However, the existing locking device is cumbersome to install and disassemble, affecting the splicing efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: in view of the cumbersome splicing of the existing locking device, to provide an arc lock and a display screen assembly.

[0005] To solve the above technical problem, on the one hand, an embodiment of the present invention provides an arc lock for splicing two adjacent unit display screens, including a first lock body and a second lock body;

[0006] The first lock body includes an angle adjustment component, a detachment kit, a locking kit, and a locking member. The angle adjustment component is used to adjust the splicing angle of two adjacent unit display screens. A cavity for accommodating the detachment kit is provided inside the angle adjustment component. The detachment kit is sleeved outside the locking kit, and the locking member is arranged on the outer wall of the locking kit;

[0007] The second lock body includes a lock rod with a card slot provided thereon. The lock rod can extend into the locking kit so that the detachment kit moves relative to the locking kit, and the locking member moves towards the lock rod inside the locking kit under the push of the detachment kit, thereby locking the locking member in the card slot of the lock rod to achieve temporary fixation of the first lock body and the second lock body.

[0008] Optionally, the detachment kit includes a first section kit and a second section kit. The thickness of the second section kit is less than that of the first section kit. An embedding slot is provided on the outer wall of the locking kit, and the locking member is arranged at the gap formed by the embedding slot and the second section kit. The first section kit is used to squeeze the locking member when the locking kit and the detachment kit move relative to each other.

[0009] Optionally, a flange is provided at one end of the locking kit close to the lock rod, and a locking kit fixing screw is installed on the angle adjustment component. The locking kit fixing screw abuts against one side of the flange to fix the flange between the inner wall of the cavity and the locking kit fixing screw.

[0010] Optionally, the first lock body further includes a button, a button push rod, a kit spring, a button spring, and a lock rod push member. The button is installed at one end of the button push rod, and the other end of the button push rod is connected to the detachment kit. The kit spring is sleeved outside the button push rod and is disposed in the cavity.

[0011] The lock rod push member is disposed in the locking kit, and the button spring is connected between the lock rod push member and the locking kit.

[0012] Optionally, a counterbore is provided on the detachment kit, and a waist-shaped hole is provided on the locking kit. The counterbore and the waist-shaped hole are connected to limit the movement stroke of the detachment kit outside the locking kit.

[0013] Optionally, the first lock body further includes a fixing seat. The angle adjustment component includes an angle adjuster and an angle rotating seat. The angle adjuster is threadedly connected outside the angle rotating seat. The angle rotating seat is installed on the fixing seat. A second positioning hole is provided on the fixing seat, and a second positioning post is provided on the angle rotating seat. The second positioning post is inserted into the second positioning hole.

[0014] Optionally, the second lock body further includes a lock rod connection seat and an abutting block. The abutting block is disposed on the side of the lock rod connection seat facing the first lock body. A plurality of inclined surfaces are uniformly arranged along the circumferential direction on the end surface of the angle adjuster facing the lock rod connection seat. When the angle adjuster rotates, different inclined surfaces can abut against the abutting block to change the splicing angle between two adjacent unit displays.

[0015] Optionally, the second lock body further includes a return spring, a limit pin, and a locking wrench. A lock rod channel is provided on the lock rod connection seat, and the lock rod passes through the lock rod channel to enter or exit the first lock body. An external thread is provided at one end of the lock rod away from the first lock body. The locking wrench is threadedly connected to the lock rod. The return spring is sleeved on the lock rod and is located between the lock rod connection seat and the locking wrench. A sliding groove is provided on the lock rod, and the limit pin is fitted in the sliding groove.

[0016] On the other hand, an embodiment of the present invention provides a display screen assembly, including a plurality of unit display screens and a plurality of arc-shaped locks as described above. Two adjacent unit display screens are spliced by the arc-shaped locks.

[0017] Optionally, two adjacent unit display screens are spliced by two of the arc locks. At the connection of two adjacent unit display screens, a first lock body is installed on one of the unit display screens, and a second lock body is installed on the other unit display screen.

[0018] For the arc lock according to the embodiment of the present invention, when splicing the unit display screens, after determining the splicing angle, the splicing angle is adjusted by the angle adjustment component. The locking rod of the second lock body extends into the first lock body. When the disengaging kit moves relative to the locking kit, the locking member touches the disengaging kit, and the disengaging kit will push the locking member, so that the locking member enters the locking kit and is stuck in the card slot on the locking rod, realizing the interlocking of the first lock body and the second lock body, thereby connecting two adjacent unit display screens together. By using the arc lock of the embodiment of the present invention, the splicing process of the unit display screens can be simplified, the installation and disassembly are simple and convenient, and the splicing efficiency of the display screen is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the positions of the first lock body and the second lock body provided by an embodiment of the present invention;

[0020] Figure 2 is Figure 1 a side view and a partial enlarged view of the second lock body;

[0021] Figure 3 is a schematic diagram of the cooperation between the first lock body and the second lock body provided by an embodiment of the present invention;

[0022] Figure 4 is an exploded schematic diagram of the first lock body provided by an embodiment of the present invention;

[0023] Figure 5 is an exploded schematic diagram of the second lock body provided by an embodiment of the present invention;

[0024] Figure 6 is a cross-sectional schematic diagram of the cooperation between the first lock body and the second lock body provided by an embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of the cooperation between the disengaging kit and the locking kit provided by an embodiment of the present invention;

[0026] Figure 8 is a schematic diagram of splicing when the angle adjuster is -7.5° provided by an embodiment of the present invention;

[0027] Figure 9 is a schematic diagram of splicing when the angle adjuster is 7.5° provided by an embodiment of the present invention;

[0028] Figure 10Schematic diagram of splicing when the angle regulator provided by an embodiment of the present invention is 0°.

[0029] The reference numerals in the specification are as follows:

[0030] 1. First lock body; 101. Angle regulator; 1011. Inclined plane; 1012. Ball groove; 1013. Third positioning hole; 102. Angle rotating seat; 1021. Second positioning post; 103. Cavity; 104. Locking kit fixing screw; 105. Detachment kit; 1051. First section kit; 1052. Second section kit; 1053. Counterbore; 106. Locking kit; 1061. Flange; 1062. First positioning post; 1063. Embedding groove; 1064. Slotted hole; 107. Locking member; 108. Fixed seat; 1081. Second positioning hole; 109. Button; 110. Button push rod; 112. Button spring; 113. Kit spring; 114. Lock rod push member; 115. Ball screw; 116. Lock fixing screw;

[0031] 2. Second lock body; 21. Lock rod; 211. Card slot; 212. Sliding slot; 22. Lock rod connection seat; 221. Lock rod channel; 23. Abutting block; 24. Third positioning post; 25. Return spring; 26. Limit pin; 27. Locking wrench;

[0032] 3. Unit display screen. Detailed implementation manners

[0033] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] As Figures 1 to 10 shown, on the one hand, an embodiment of the present invention provides an arc lock, including a first lock body 1 and a second lock body 2. The first lock body 1 is installed on a unit display screen, and the second lock body 2 is installed on another unit display screen. The connection between the first lock body 1 and the second lock body 2 is used to realize the splicing of two adjacent unit display screens.

[0035] The first lock body 1 includes an angle adjustment component, a detachment kit 105, a locking kit 106 and a locking member 107. The angle adjustment component is used to adjust the splicing angle of two adjacent unit display screens 3, so as to obtain a flat or curved splicing display screen. A cavity 103 for accommodating the detachment kit 105 is provided inside the angle adjustment component. The detachment kit 105 is sleeved outside the locking kit 106. The detachment kit 105 can slide outside the locking kit 106. The locking member 107 is arranged on the outer wall of the locking kit 106.

[0036] The second lock body 2 includes a lock rod 21, on which a clamping groove 211 is provided. The lock rod 21 can extend into the first lock body 1, so that the detachment kit 105 moves outside the locking kit 106, and the locking member 107 moves towards the lock rod 21 inside the locking kit 106 under the pushing and squeezing of the detachment kit 105. The locking member 107 is locked in the clamping groove 211 of the lock rod 21 to achieve the temporary fixation of the first lock body 1 and the second lock body 2.

[0037] In the present invention, when splicing the unit display screen 3, after determining the splicing angle, the angle is adjusted by the angle adjustment assembly. When the lock rod 21 extends into the first lock body 1 and the detachment kit 105 moves relative to the locking kit 106, the locking member 107 touches the detachment kit 105, and the detachment kit 105 will push and squeeze the locking member 107, so that the locking member 107 enters the locking kit 106 and is stuck in the clamping groove 211 of the lock rod 21, realizing the interlocking of the first lock body 1 and the second lock body 2, and thus connecting two adjacent unit display screens 3 together. Using the arc-shaped lock of the embodiment of the present invention can simplify the splicing process of the unit display screen, and the installation and disassembly are simple and convenient, greatly improving the splicing efficiency of the display screen.

[0038] As Figure 7 shown, in an embodiment, the detachment kit 105 includes a first-section kit 1051 and a second-section kit 1052. The thickness of the second-section kit 1052 is smaller than that of the first-section kit 1051, so that a step structure is formed at the junction of the first-section kit 1051 and the second-section kit 1052. An embedding groove 1063 is provided on the outer wall of the locking kit 106, and the embedding groove 1063 penetrates the outer wall of the locking kit 106. The locking member 107 is arranged at the gap formed by the embedding groove 1063 and the second-section kit 1052. When the locking kit 106 and the detachment kit 105 move relatively, the first-section kit 1051 at the step structure squeezes the locking member 107, and the locking member 107 enters the locking kit 106 from the embedding groove 1063.

[0039] In an embodiment, the locking member 107 is a locking ball, and the locking ball is arranged in the embedding groove 1063. The locking ball is spherical, and it is easier to push when the first-section kit 1051 pushes the locking ball. Preferably, three locking balls are arranged on each side of the locking kit 106. When the angle adjustment assembly adjusts the angle, the interlocking of the clamping groove 211 and the locking balls at different positions is satisfied at different angles.

[0040] As Figure 4 、 Figure 6 shown, in one embodiment, the first lock body 1 further includes a fixing base 108. The angle adjustment assembly includes an angle adjuster 101 and an angle rotating base 102. The angle adjuster 101 is internally provided with internal threads, and the angle rotating base 102 is provided with external threads. The angle rotating base 102 is threadedly connected to the angle adjuster 101, and the angle rotating base 102 is fixedly installed on the fixing base 108 by a lock fixing screw 116.

[0041] As Figure 6 shown, the fixing base 108 is provided with a second positioning hole 1081, and the angle rotating base 102 is provided with a second positioning post 1021. The second positioning post 1021 is inserted into the second positioning hole 1081, which can position the installation position of the angle rotating base 102 and prevent errors in the installation position. Preferably, both the second positioning post 1021 and the second positioning hole 1081 are provided with two, and each second positioning post 1021 is correspondingly connected to the second positioning hole 1081.

[0042] As Figure 4 、 Figure 7 shown, in one embodiment, one end of the locking kit 106 close to the lock rod 21 is provided with a flange 1061. A locking kit fixing screw 104 is installed on the angle adjustment assembly. The locking kit fixing screw 104 can extend into the cavity 103, and the locking kit fixing screw 104 abuts against one side of the flange 1061 to fix the flange 1061 between the inner wall of the cavity 103 and the locking kit fixing screw 104, thereby fixing the installation position of the locking kit 106. When the angle adjuster 101 rotates to adjust the angle, the locking kit 106 can move with the angle adjuster 101.

[0043] In one embodiment, the locking kit 106 is a cylindrical structure with one end closed and one end open. The flange 1061 is arranged along the circumference of the open end of the locking kit 106, and the flange 1061 is defined between the locking kit fixing screw 104 and the inner wall of the angle adjuster 101. In this way, even if the angle adjuster 101 is rotated and the locking kit fixing screw 104 rotates with the angle adjuster 101, the locking kit fixing screw 104 can still remain in contact with the flange 1061.

[0044] As Figure 4 、 Figure 6 、 Figure 7As shown, in one embodiment, the first lock body 1 further includes a button 109, a button push rod 110, a button spring 112, a kit spring 113, and a lock rod push member 114. The button 109 is installed at one end of the button push rod 110, and the other end of the button push rod 110 is connected to the release kit 105. The kit spring 113 is sleeved outside the button push rod 110, and the kit spring 113 is disposed in the cavity 103, that is, the kit spring 113 is disposed on the portion of the button push rod 110 extending into the cavity 103. When the lock rod 21 does not extend into the first lock body 1, the kit spring 113 is in a compressed state and abuts between the inner wall of the cavity 103 and the release kit 105.

[0045] The lock rod push member 114 is disposed in the locking kit 106 and can slide within the locking kit 106. The button spring 112 is connected between the lock rod push member 114 and the locking kit 106. Specifically, a first positioning post 1062 is provided at the closed end of the locking kit 106, one end of the button spring 112 is connected to the first positioning post 1062, and the other end of the button spring 112 is connected to the lock rod push member 114.

[0046] Preferably, when the lock rod 21 does not extend into the first lock body 1, the initial position of the lock rod push member 114 is located at the locking member 107, and the side of the lock rod push member 114 abuts against the locking member 107 to prevent the locking member 107 from entering the locking kit 106 when the lock rod 21 does not extend.

[0047] When the lock rod 21 is extended into the first lock body 1, the lock rod 21 abuts against the lock rod push member 114, pushing the lock rod push member 114 to move and simultaneously compressing the button spring 112, causing the lock rod push member 114 to leave the initial position, and the side of the lock rod push member 114 no longer abuts against the locking member 107. Under the elastic force of the kit spring 113, the first section kit 1051 of the release kit 105 pushes the locking member 107 in the embedding groove 1063, and at the same time, the first section kit 1051 blocks the embedding groove 1063 to prevent the locking member 107 from returning. After the locking member 107 enters the cavity 103, it is stuck in the card slot 211 of the lock rod 21 to complete the interlock.

[0048] When unlocking is required, pull the button 109 to move away from the lock rod 21, driving the detachment kit 105 to move together. The first-section kit 1051 leaves the embedding slot 1063, and the second-section kit 1052 returns to the embedding slot 1063. The button spring 112 in a compressed state pushes the lock rod pusher 114 towards the lock rod 21, and then pushes the lock rod 21. Since the first-section kit 1051 no longer blocks the embedding slot 1063, the lock rod pusher 114 pushes the lock rod 21, and the locking member 107 and the card slot 211 are easily disengaged. The locking member 107 re-enters the gap formed between the embedding slot 1063 and the second-section kit 1052, releasing the lock between the locking member 107 and the card slot 211. The side of the lock rod pusher 114 abuts against the locking member 107 to prevent the locking member 107 from entering the locking kit 106.

[0049] In one embodiment, a counterbore 1053 is provided on the detachment kit 105, and a waist-shaped hole 1064 is provided on the locking kit 106. The counterbore 1053 and the waist-shaped hole 1064 are connected by a screw, and the screw can move in the waist-shaped hole 1064. When the kit spring 113 drives the detachment kit 105 to move, and when pulling the button 109 to move and drive the detachment kit 105 to move, the movement stroke of the detachment kit 105 outside the locking kit 106 can be restricted, preventing the movement stroke of the detachment kit 105 from being too large and affecting the locking between the locking member 107 and the card slot 211.

[0050] As Figure 5 shown, in one embodiment, the second lock body 2 further includes a lock rod connecting seat 22 and an abutting block 23. The abutting block 23 is arranged on the side of the lock rod connecting seat 22 facing the first lock body 1. A plurality of inclined surfaces 1011 are uniformly arranged along the circumferential direction on the end surface of the angle adjuster 101 facing the lock rod connecting seat 22. When the angle adjuster 101 rotates, different inclined surfaces 1011 can abut against the abutting block 23 to change the splicing angle between two adjacent unit display screens 3.

[0051] As Figure 4 shown, in one embodiment, the number of the inclined surfaces 1011 is an even number, and two inclined surfaces 1011 arranged symmetrically at 180° are coplanar. Adjacent two inclined surfaces 1011 are not in the same plane, and different inclined surfaces 1011 have different thicknesses. Correspondingly, two abutting blocks 23 are provided, and the two abutting blocks 23 respectively abut against two inclined surfaces 1011 arranged symmetrically at 180°.

[0052] As Figure 4As shown, in one embodiment, the adjustable angles on the angle adjuster 101 are -7.5°, -5°, -2.5°, 0°, 2.5°, 5°, and 7.5°. Along the direction from the 7.5° inclined plane to the -7.5° inclined plane, the thickness of the inclined plane 1011 increases in sequence. Among them, the 7.5° inclined plane is the thinnest, and the -7.5° inclined plane is the thickest. Taking the 7.5° inclined plane and the -7.5° inclined plane as the dividing line, the inclined planes 1011 on both sides are symmetrically arranged.

[0053] The 7.5° inclined plane and the -7.5° inclined plane are in the same plane, forming an inclined surface. Similarly, the 5° inclined plane and the -5° inclined plane are in the same plane, and the 2.5° inclined plane and the -2.5° inclined plane are in the same plane. And the inclined surface formed by the 7.5° inclined plane and the -7.5° inclined plane has the largest inclination angle. After the abutting block 23 abuts against the two inclined planes 1011 in the same plane, the two unit display screens 3 are presented at different angles.

[0054] As Figure 8 shown, it is a schematic diagram of splicing when the angle adjuster 101 is adjusted to -7.5°. A is 172.5°

[0055] As Figure 9 shown, it is a schematic diagram of splicing when the angle adjuster 101 is adjusted to 7.5°. B is 172.5°.

[0056] As Figure 10 shown, it is a schematic diagram of splicing when the angle adjuster 101 is adjusted to 0°. C is 180°.

[0057] As Figure 2 、 Figure 4 shown, in one embodiment, a third positioning hole 1013 is provided on each inclined plane 1011, and a third positioning post 24 is provided on each abutting block 23. When the abutting block 23 abuts against the inclined plane 1011, the third positioning post 24 is fitted in the third positioning hole 1013.

[0058] As Figure 5As shown, in one embodiment, the second lock body 2 further includes a return spring 25, a limit pin 26, and a locking wrench 27. A lock rod channel 221 is provided on the lock rod connecting seat 22. The lock rod channel 221 vertically penetrates the lock rod connecting seat 22. The lock rod channel 221 allows the lock rod 21 to pass through to enter or exit the first lock body 1. The limit pin 26 is installed on the lock rod connecting seat 22. A sliding groove 212 is provided on the lock rod 21. The limit pin 26 extends into the lock rod channel 221 and fits into the sliding groove 212. When the lock rod 21 moves, the limit pin 26 slides in the sliding groove 212, which can limit the movement direction of the lock rod 21, prevent the lock rod 21 from rotating, and at the same time prevent the lock rod 21 from detaching from the lock rod connecting seat 22.

[0059] As Figure 5 shown, in one embodiment, a card slot 211 is provided at one end of the lock rod 21, and an external thread is provided at the other end of the lock rod 21, that is, an external thread is provided at the end of the lock rod 21 away from the first lock body 1. The locking wrench 27 is threadedly connected to the lock rod 21. The return spring 25 is sleeved on the lock rod 21. The return spring 25 is located between the lock rod connecting seat 22 and the locking wrench 27.

[0060] Preferably, the card slot 211 is an annular groove, which can ensure that after the angle adjuster 101 rotates, the card slot 211 can also be interlocked with the locking member 107 (locking ball).

[0061] When locking, first rotate the angle adjuster 101 to the required angle, insert the lock rod 21 into the first lock body 1. After the lock rod 21 is interlocked with the locking member 107, turn the locking wrench 27 to rotate and lock.

[0062] When unlocking, first rotate the locking wrench 27 to loosen the locking of the lock rod 21, pull the button 109, and the button spring 112 pushes the lock rod pusher 114 to move. After the locking between the locking member 107 and the card slot 211 is released, under the action of the return spring 25 and the button spring 112, the lock rod 21 completely detaches from the first lock body 1 and returns to the second lock body 2.

[0063] As Figure 4 、 Figure 6As shown, in one embodiment, a plurality of detent grooves 1012 are axially provided on the angle adjuster 101. The detent grooves 1012 are arranged on the outer surface of the angle adjuster 101. A detent screw 115 is installed on the fixed seat 108. The detent screw 115 extends into the cavity 103. The detent screw 115 is engaged in one of the detent grooves 1012. When the angle adjuster 101 is rotated, the detent screw 115 can be engaged with the detent grooves 1012 at different positions, and at the same time, a "click" sound can be heard, indicating that the angle adjuster 101 has been rotated in place.

[0064] As Figures 8 to 10 shown, on the other hand, an embodiment of the present invention provides a display screen assembly, including a plurality of unit display screens 3 and a plurality of arc locks as described above. Two adjacent unit display screens 3 are spliced through the arc locks. The first lock body 1 and the second lock body 2 are provided on each unit display screen 3. The first lock body 1 and the second lock body 2 are installed on different sides of the unit display screen 3.

[0065] In one embodiment, two adjacent unit display screens 3 are spliced through two arc locks. At the connection of two adjacent unit display screens, one of the unit display screens is installed with the first lock body 1, and the other unit display screen is installed with the second lock body 2. The splicing of the two unit display screens 3 is realized through the first lock body 1 and the second lock body 2.

[0066] In another embodiment not shown, two adjacent unit display screens are spliced through two arc locks. At the connection of two adjacent unit display screens, one of the unit display screens is installed with the first lock body 1 of the first arc lock and the second lock body 2 of the second arc lock, and the other unit display screen is installed with the second lock body 2 of the first arc lock and the first lock body 3 of the second arc lock. The splicing of the two unit display screens 3 is realized through the first lock body 1 and the second lock body 2.

[0067] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc-shaped lock is used for splicing two adjacent unit displays, and is characterized in that It includes a first lock body and a second lock body; The first lock body includes an angle adjustment component, a detachment kit, a locking kit, and a locking member. The angle adjustment component is used to adjust the splicing angle of adjacent unit displays. A cavity for accommodating the detachment kit is provided inside the angle adjustment component. The detachment kit is sleeved outside the locking kit, and the locking member is arranged on the outer wall of the locking kit; The second lock body includes a lock rod, and a card slot is provided on the lock rod. The lock rod can extend into the locking kit so that the detachment kit moves relative to the locking kit. The locking member moves towards the lock rod in the locking kit under the push of the detachment kit, so that the locking member is locked in the card slot of the lock rod to achieve the temporary fixation of the first lock body and the second lock body; The first lock body further includes a button, a button push rod, a kit spring, a button spring, and a lock rod push member. The button is installed at one end of the button push rod, and the other end of the button push rod is connected to the detachment kit. The kit spring is sleeved outside the button push rod and is arranged in the cavity; The lock rod push member is arranged inside the locking kit, and the button spring is connected between the lock rod push member and the locking kit; The first lock body further includes a fixed seat. The angle adjustment component includes an angle adjuster and an angle rotating seat. The angle adjuster is threadedly connected outside the angle rotating seat, and the angle rotating seat is installed on the fixed seat; when the angle adjuster rotates to adjust the angle, the locking kit can move along with the angle adjuster; The second lock body further includes a lock rod connection seat and an abutting block. The abutting block is arranged on the side of the lock rod connection seat facing the first lock body. A plurality of inclined surfaces are evenly arranged along the circumferential direction on the end surface of the angle adjuster facing the lock rod connection seat. When the angle adjuster rotates, different inclined surfaces can be in contact with the abutting block to change the splicing angle between adjacent unit displays.

2. The arc-shaped lock according to claim 1, wherein, The detachment kit includes a first section kit and a second section kit. The thickness of the second section kit is less than that of the first section kit. An embedding groove is provided on the outer wall of the locking kit, and the locking member is arranged at the gap formed by the embedding groove and the second section kit. The first section kit is used to squeeze the locking member when the locking kit and the detachment kit move relatively.

3. The arc-shaped lock according to claim 1, characterized in that, A flange is provided at one end of the locking kit close to the lock rod. A locking kit fixing screw is installed on the angle adjustment component, and the locking kit fixing screw abuts against one side of the flange to fix the flange between the inner wall of the cavity and the locking kit fixing screw.

4. The arc-shaped lock according to claim 1, wherein A counterbore is provided on the detachment kit, and a waist-shaped hole is provided on the locking kit. The counterbore and the waist-shaped hole are connected to limit the movement stroke of the detachment kit outside the locking kit.

5. The arc-shaped lock according to claim 1, characterized in that, A second positioning hole is provided on the fixed seat, and a second positioning post is provided on the angle rotating seat. The second positioning post is inserted into the second positioning hole.

6. The arc-shaped lock according to claim 1, wherein, The second lock body further includes a return spring, a limit pin and a locking wrench. A lock rod passage is provided on the lock rod connecting seat, and the lock rod passes through the lock rod passage to enter or exit the first lock body. An external thread is provided at one end of the lock rod away from the first lock body, and the locking wrench is threadedly connected to the lock rod. The return spring is sleeved on the lock rod and is located between the lock rod connecting seat and the locking wrench. A sliding groove is provided on the lock rod, and the limit pin is fitted in the sliding groove.

7. A display screen assembly, characterized in that, It includes a plurality of unit display screens and a plurality of arc-shaped locks according to any one of claims 1-6, and two adjacent unit display screens are spliced by the arc-shaped lock.

8. The display screen assembly according to claim 7, wherein, Two adjacent unit display screens are spliced by two arc-shaped locks. At the connection of two adjacent unit display screens, a first lock body is installed on one unit display screen, and a second lock body is installed on the other unit display screen.

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