CN216307138U - Arc lock and display screen assembly - Google Patents

Abstract

The utility model belongs to the technical field of display screens, and particularly relates to an arc-shaped lock and a display screen assembly, wherein the arc-shaped lock comprises a first lock body and a second lock body; the first lock body comprises an angle adjusting assembly, a separation sleeve piece, a locking sleeve piece and a locking piece, wherein the angle adjusting assembly is used for adjusting the splicing angle, a cavity for accommodating the separation sleeve piece is formed in the angle adjusting assembly, the locking sleeve piece is arranged in the separation sleeve piece, and the locking piece is arranged on the outer wall of the locking sleeve piece; the second lock body comprises a lock rod, a clamping groove is formed in the lock rod, the separation sleeve moves relative to the locking sleeve, so that the locking piece moves towards the lock rod under the extrusion of the separation sleeve, and the locking piece is locked in the clamping groove, and the temporary fixation of the first lock body and the second lock body is achieved. According to the utility model, the locking piece moves along with the locking sleeve piece, and is separated from the sleeve piece to push the locking piece, so that the locking piece is clamped in the clamping groove, the interlocking of the first lock body and the second lock body is realized, the splicing process of the unit display screen is simplified, the installation is convenient, and the splicing efficiency is improved.

Description

Arc lock and display screen assembly

Technical Field

The utility model belongs to the technical field of display screens, and particularly relates to an arc-shaped lock and a display screen assembly.

Background

The display screen is used for displaying information such as characters, images, videos, video information and the like, and the display screen is widely applied in many fields because the display screen has the advantages of high brightness, low working voltage, low power consumption, large size, long service life, impact resistance, stable performance and the like due to light emission.

At present, a large display screen is formed by splicing a plurality of small unit display screens through a locking device. However, the existing locking device is complex to install and disassemble, and splicing efficiency is affected.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: to the loaded down with trivial details problem of current locking device concatenation, provide an arc lock and display screen subassembly.

In order to solve the above technical problem, in one aspect, an embodiment of the present invention provides an arc lock, which is used for splicing two adjacent unit display screens, and includes a first lock body and a second lock body;

the first lock body comprises an angle adjusting assembly, a separation sleeve piece, a locking sleeve piece and a locking piece, wherein the angle adjusting assembly is used for adjusting the splicing angle of two adjacent unit display screens, a cavity for accommodating the separation sleeve piece is formed in the angle adjusting assembly, the separation sleeve piece is sleeved outside the locking sleeve piece, and the locking piece is arranged on the outer wall of the locking sleeve piece;

the second lock body comprises a lock rod, a clamping groove is formed in the lock rod, the lock rod can stretch into the locking sleeve piece, so that the separation sleeve piece is opposite to the locking sleeve piece to move, the locking piece is pushed to move towards the locking rod in the locking sleeve piece, and therefore the locking piece is locked in the clamping groove of the lock rod, and the first lock body and the second lock body are temporarily fixed.

Optionally, the separation external member includes first section external member and second section external member, second section external member thickness is less than the thickness of first section external member, be provided with the embedded groove on the outer wall of locking external member, the retaining member sets up the embedded groove with the space department that second section external member formed, first section external member be used for the locking external member with extrude when the relative movement takes place for the separation external member the retaining member.

Optionally, one end of the locking sleeve, which is close to the locking rod, is provided with a flange, the angle adjustment assembly is provided with a locking sleeve fixing screw, and the locking sleeve fixing screw abuts against one side of the flange so as to fix the flange between the inner wall of the cavity and the locking sleeve fixing screw.

Optionally, the first lock body further comprises a button, a button push rod, a sleeve spring, a button spring and a lock rod pushing piece, the button is installed at one end of the button push rod, the other end of the button push rod is connected with the separation sleeve, the sleeve spring is sleeved outside the button push rod, and the sleeve spring is arranged in the cavity;

the locking rod pushing piece is arranged in the locking sleeve piece, and the button spring is connected between the locking rod pushing piece and the locking sleeve piece.

Optionally, a counter bore is arranged on the separation sleeve, a waist hole is arranged on the locking sleeve, and the counter bore is connected with the waist hole to limit the movement stroke of the separation sleeve outside the locking sleeve.

Optionally, the first lock body further includes a fixed seat, the angle adjusting assembly includes an angle adjuster and an angle rotating seat, the angle adjuster is screwed outside the angle rotating seat, the angle rotating seat is mounted on the fixed seat, a second positioning hole is formed in the fixed seat, a second positioning column is arranged on the angle rotating seat, and the second positioning column is inserted into the second positioning hole.

Optionally, the second lock body still includes locking lever connecting seat and butt piece, the butt piece sets up the orientation of locking lever connecting seat one side of first lock body, angle adjuster's orientation evenly is provided with a plurality of inclined planes along circumference on one side terminal surface of locking lever connecting seat, angle adjuster is rotatory, can make different inclined planes with the butt piece is contradicted to change the concatenation angle between two adjacent unit display screens.

Optionally, the second lock body further comprises a return spring, a limit pin and a locking wrench, the locking rod connecting seat is provided with a locking rod channel, and the locking rod passes through the locking rod channel to enter or exit the first lock body; an external thread is arranged at one end of the lock rod, which is far away from the first lock body, the locking wrench is in threaded connection with the lock rod, the reset spring is sleeved on the lock rod, and the reset spring is positioned between the lock rod connecting seat and the locking wrench; the lock rod is provided with a sliding groove, and the limiting pin is matched in the sliding groove.

On the other hand, the embodiment of the utility model provides a display screen assembly, which comprises a plurality of unit display screens and a plurality of arc-shaped locks, wherein two adjacent unit display screens are spliced through the arc-shaped locks.

Optionally, two adjacent unit display screens are spliced through two arc-shaped locks, two adjacent unit display screens are arranged at the joint of the unit display screens, one of the unit display screens is provided with a first lock body, and the other unit display screen is provided with a second lock body.

According to the arc lock disclosed by the embodiment of the utility model, when the unit display screens are spliced, after the splicing angle is determined, the splicing angle is adjusted through the angle adjusting assembly, the lock rod of the second lock body extends into the first lock body, when the separation sleeve moves relative to the locking sleeve, the locking member touches the separation sleeve, the separation sleeve pushes the locking member, the locking member enters the locking sleeve and is clamped in the clamping groove on the lock rod, the first lock body and the second lock body are interlocked, and therefore, two adjacent unit display screens are connected together. By adopting the arc lock provided by the embodiment of the utility model, the splicing process of the unit display screens can be simplified, the installation and the disassembly are simple and convenient, and the splicing efficiency of the display screens is greatly improved.

Drawings

Fig. 1 is a schematic position diagram of a first lock body and a second lock body according to an embodiment of the present invention;

figure 2 is a side schematic view of figure 1 and a close-up view of a second lock body;

figure 3 is a schematic diagram of the first and second lock bodies according to an embodiment of the present invention;

figure 4 is an exploded view of a first lock body according to one embodiment of the present invention;

figure 5 is an exploded view of a second lock body according to one embodiment of the present invention;

figure 6 is a cross-sectional view of the first lock body mated with the second lock body in accordance with one embodiment of the present invention;

FIG. 7 is a schematic view of the disengagement assembly and locking assembly provided by one embodiment of the present invention;

FIG. 8 is a schematic view of a splice at an angle adjuster of-7.5 according to an embodiment of the present invention;

FIG. 9 is a schematic illustration of a splice at an angle adjuster of 7.5 according to an embodiment of the present invention;

fig. 10 is a schematic diagram of the splice with the angle adjuster at 0 ° according to an embodiment of the present invention.

The reference numerals in the specification are as follows:

1. a first lock body; 101. an angle adjuster; 1011. a bevel; 1012. a bead groove; 1013. a third positioning hole; 102. an angle rotating base; 1021. a second positioning column; 103. a cavity; 104. locking the external member fixing screw; 105. a detachment kit; 1051. a first stage kit; 1052. a second section of the sleeve member; 1053. a counter bore; 106. a locking sleeve member; 1061. a flange; 1062. a first positioning post; 1063. a groove is embedded; 1064. a waist hole; 107. a locking member; 108. a fixed seat; 1081. a second positioning hole; 109. a button; 110. a push-button push rod; 112. a button spring; 113. a sleeve spring; 114. a lock bar pushing member; 115. a ball screw; 116. locking a fixing screw;

2. a second lock body; 21. a lock lever; 211. a card slot; 212. a sliding groove; 22. a lock rod connecting seat; 221. a locking bar channel; 23. a butting block; 24. a third positioning column; 25. a return spring; 26. a spacing pin; 27. locking the wrench;

3. and a unit display screen.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 to 10, in one aspect, an embodiment of the present invention provides an arc lock, which includes a first lock body 1 and a second lock body 2, where 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, and the first lock body 1 and the second lock body 2 are connected to implement splicing of two adjacent unit display screens.

The first lock body 1 comprises an angle adjusting assembly, a separation sleeve member 105, a locking sleeve member 106 and a locking member 107, wherein the angle adjusting assembly is used for adjusting the splicing angle of two adjacent unit display screens 3, so that a planar or cambered spliced display screen can be obtained. The angle adjustment assembly is internally provided with a cavity 103 for accommodating the separation sleeve 105, the separation sleeve 105 is sleeved outside the locking sleeve 106, the separation sleeve 105 can slide outside the locking sleeve 106, and the locking piece 107 is arranged on the outer wall of the locking sleeve 106.

The second lock body 2 comprises a lock rod 21, a clamping groove 211 is formed in the lock rod 21, the lock rod 21 can stretch into the first lock body 1, the separation sleeve 105 is enabled to move outside the locking sleeve 106, the locking piece 107 is enabled to move towards the locking rod 21 inside the locking sleeve 106 under pushing and extruding of the separation sleeve 105, and the locking piece 107 is locked in the clamping groove 211 of the lock rod 21 to achieve temporary fixation of the first lock body 1 and the second lock body 2.

According to the utility model, when the unit display screens 3 are spliced, after the splicing angle is determined, the angle is adjusted through the angle adjusting assembly, the lock rod 21 extends into the first lock body 1, when the separation sleeve member 105 moves relative to the locking sleeve member 106, the locking member 107 touches the separation sleeve member 105, the separation sleeve member 105 pushes the locking member 107, so that the locking member 107 enters the locking sleeve member 106 and is clamped in the clamping groove 211 of the lock rod 21, the first lock body 1 and the second lock body 2 are interlocked, and the adjacent two unit display screens 3 are connected together. By adopting the arc lock provided by the embodiment of the utility model, the splicing process of the unit display screens can be simplified, the installation and the disassembly are simple and convenient, and the splicing efficiency of the display screens is greatly improved.

As shown in fig. 7, in an embodiment, the detachment set 105 includes a first set of pieces 1051 and a second set of pieces 1052, the thickness of the second set of pieces 1052 is smaller than that of the first set of pieces 1051, so that a step structure is formed at the intersection of the first set of pieces 1051 and the second set of pieces 1052, an insertion groove 1063 is provided on the outer wall of the locking set 106, the insertion groove 1063 penetrates through the outer wall of the locking set 106, and the locker 107 is provided at the gap formed by the insertion groove 1063 and the second set of pieces 1052, when the locking set 106 and the detachment set 105 are relatively moved, the first set of pieces 1051 at the step structure presses the locker 107, and the locker 107 enters the locking set 106 from the insertion groove 1063.

In an embodiment, retaining member 107 is the locking marble, the locking marble is established in embedded groove 1063, the locking marble is spherical, first section external member 1051 pushes when the locking marble, promotes more easily, preferably, every side of locking external member 106 all is provided with three the locking marble, when angle adjustment subassembly angle of adjustment, satisfy under the different angles, draw-in groove 211 and different positions the interlocking of locking marble.

As shown in fig. 4 and 6, in an embodiment, the first lock body 1 further includes a fixing seat 108, the angle adjusting assembly includes an angle adjuster 101 and an angle rotary seat 102, an internal thread is disposed inside the angle adjuster 101, an external thread is disposed on the angle rotary seat 102, the angle rotary seat 102 is screwed into the angle adjuster 101, and the angle rotary seat 102 is fixedly mounted on the fixing seat 108 through a lock fixing screw 116.

As shown in fig. 6, the fixing seat 108 is provided with a second positioning hole 1081, the angular rotation seat 102 is provided with a second positioning post 1021, and the second positioning post 1021 is inserted into the second positioning hole 1081, so as to position the installation position of the angular rotation seat 102 and prevent the installation position from having errors. Preferably, two second positioning columns 1021 and two second positioning holes 1081 are arranged, and each second positioning column 1021 is connected in the second positioning hole 1081 in a one-to-one correspondence manner.

As shown in fig. 4 and 7, in an embodiment, a flange 1061 is disposed at one end of the locking sleeve 106 close to the lock rod 21, a locking sleeve fixing screw 104 is installed on the angle adjusting assembly, the locking sleeve fixing screw 104 can extend into the cavity 103, and the locking sleeve 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 sleeve fixing screw 104, so as to fix the installation position of the locking sleeve 106, and when the angle adjuster 101 rotates to adjust the angle, the locking sleeve 106 can move along with the angle adjuster 101.

In an embodiment, the locking sleeve 106 is a tubular structure with one closed end and one open end, the flange 1061 is disposed along the circumference of the open end of the locking sleeve 106, and the flange 1061 is defined between the locking sleeve fixing screw 104 and the inner wall of the angle adjuster 101, so that even if the angle adjuster 101 is rotated, the locking sleeve fixing screw 104 rotates along with the angle adjuster 101, and the locking sleeve fixing screw 104 can still keep abutting against the flange 1061.

As shown in fig. 4, fig. 6, and fig. 7, in an embodiment, the first lock body 1 further includes a button 109, a button push rod 110, a button spring 112, a sleeve spring 113, and a lock rod pushing member 114, the button 109 is installed at one end of the button push rod 110, the other end of the button push rod 110 is connected to the separation sleeve 105, the sleeve spring 113 is sleeved outside the button push rod 110, the sleeve spring 113 is disposed in the cavity 103, that is, the sleeve 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 sleeve spring 113 is in a compressed state and is abutted against the inner wall of the cavity 103 and the separation sleeve 105.

The locking rod pushing part 114 is arranged in the locking sleeve 106 and can slide in the locking sleeve 106, the button spring 112 is connected between the locking rod pushing part 114 and the locking sleeve 106, specifically, the closed end of the locking sleeve 106 is provided with a first positioning column 1062, one end of the button spring 112 is connected to the first positioning column 1062, and the other end of the button spring 112 is connected to the locking rod pushing part 114.

Preferably, when the lock bar 21 does not extend into the first lock body 1, the initial position of the lock bar pushing member 114 is located at the locking member 107, and the side edge of the lock bar pushing member 114 abuts against the locking member 107, so as to prevent the locking member 107 from entering the locking sleeve member 106 when the lock bar 21 does not extend.

Will locking lever 21 stretches into when in the first lock body 1, locking lever 21 contradicts locking lever pushing part 114 is last, promotes locking lever pushing part 114 removes, compresses simultaneously button spring 112 makes locking lever pushing part 114 leaves the initial position, locking lever pushing part 114's side no longer supports and leans on retaining member 107 under the spring action of external member spring 113, break away from external member 105 first section external member 1051 promotes in embedded groove 1063 retaining member 107, simultaneously first section external member 1051 can block up embedded groove 1063 department prevents retaining member 107 return, retaining member 107 gets into after in the cavity 103, the card is in locking lever 21's draw-in groove 211, accomplishes the interlocking.

When unlocking is needed, the button 109 is pulled to move towards the direction away from the lock rod 21, the disengagement sleeve 105 is driven to move together, the first section set 1051 leaves the insertion groove 1063, the second section set 1052 returns to the insertion groove 1063, the button spring 112 in the compressed state pushes the lock bar pusher 114 to move toward the lock bar 21, thereby pushing the lock bar 21, since the first segment set 1051 no longer blocks the fitting groove 1063, the lock lever push piece 114 pushes the lock lever 21, the locker 107 and the catching groove 211 are easily separated, the locker 107 is re-entered into the gap formed between the insertion groove 1063 and the second leg member 1052, the locking of the locker 107 and the catching groove 211 is released, the side of lock lever pusher 114 abuts against retaining member 107, preventing retaining member 107 from entering into locking assembly 106.

In an embodiment, a counter bore 1053 is provided on the disengagement sleeve 105, a waist hole 1064 is provided on the locking sleeve 106, the counter bore 1053 and the waist hole 1064 are connected by a screw, the screw can move in the waist hole 1064, when the sleeve spring 113 pushes the disengagement sleeve 105 to move, and when the button 109 is pulled to move to drive the disengagement sleeve 105 to move, the movement stroke of the disengagement sleeve 105 outside the locking sleeve 106 can be limited, and the locking of the locking member 107 and the locking groove 211 is prevented from being affected by the excessive movement stroke of the disengagement sleeve 105.

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

As shown in fig. 4, in an embodiment, the number of the inclined surfaces 1011 is double, two of the inclined surfaces 1011 symmetrically arranged at 180 ° are coplanar, two adjacent inclined surfaces 1011 are not in the same plane, and different inclined surfaces 1011 have different thicknesses. Correspondingly, the number of the abutting blocks 23 is two, and the two abutting blocks 23 respectively abut against the two inclined planes 1011 symmetrically arranged at 180 degrees.

As shown in fig. 4, in one embodiment, the adjustable angle of the angle adjuster 101 is-7.5 °, -5 °, -2.5 °, 0 °, 2.5 °, 5 °, and 7.5 °, and the thickness of the inclined surface 1011 increases in the direction from the inclined surface of 7.5 ° to the inclined surface of-7.5 °, wherein the inclined surface of 7.5 ° is thinnest, the inclined surface of-7.5 ° is thickest, and the inclined surfaces 1011 at both sides are symmetrically arranged with the inclined surface of 7.5 ° and the inclined surface of-7.5 ° as boundary lines.

The inclined plane of 7.5 degrees and the inclined plane of-7.5 degrees are located on the same plane to form an inclined plane, similarly, the inclined plane of 5 degrees and the inclined plane of-5 degrees are located on the same plane, the inclined plane of 2.5 degrees and the inclined plane of-2.5 degrees are located on the same plane, the inclination angle of the inclined plane formed by the inclined plane of 7.5 degrees and the inclined plane of-7.5 degrees is the largest, and the abutting block 23 abuts against two inclined planes 1011 located on the same plane, so that the two unit display screens 3 present different angles.

As shown in FIG. 8, the angle adjuster 101 is a schematic view of the splicing process when the angle adjuster is adjusted to-7.5 degrees, where A is 172.5 degrees

As shown in fig. 9, a schematic diagram of the splicing when the angle adjuster 101 adjusts to 7.5 ° is shown, and B is 172.5 °.

As shown in fig. 10, the angle adjuster 101 is a schematic diagram of the splicing when adjusted to 0 °, and C is 180 °.

As shown in fig. 2 and 4, in an embodiment, each inclined surface 1011 is provided with a third positioning hole 1013, each abutting block 23 is provided with a third positioning column 24, and when the abutting block 23 abuts against the inclined surface 1011, the third positioning column 24 is fitted in the third positioning hole 1013.

As shown in fig. 5, in an embodiment, the second lock body 2 further includes a return spring 25, a limit pin 26 and a locking wrench 27, the locking rod connecting seat 22 is provided with a locking rod passage 221, the locking rod passage 221 vertically penetrates through the locking rod connecting seat 22, and the locking rod passage 221 can be passed through by the locking rod 21 to enter or exit the first lock body 1. The limit pin 26 is installed on the lock rod connecting seat 22, the lock rod 21 is provided with a sliding groove 212, the limit pin 26 extends into the lock rod channel 221 and is matched with the sliding groove 212, when the lock rod 21 moves, the limit pin 26 slides in the sliding groove 212, the moving direction of the lock rod 21 can be limited, the lock rod 21 is prevented from rotating, and meanwhile, the lock rod 21 can be prevented from being separated from the lock rod connecting seat 22.

As shown in fig. 5, in an embodiment, one end of the lock rod 21 is provided with the clamping groove 211, and the other end of the lock rod 21 is provided with an external thread, that is, one end of the lock rod 21, which is far away from the first lock body 1, is provided with an external thread, the locking wrench 27 is connected to the lock rod 21 in a threaded manner, the return spring 25 is sleeved on the lock rod 21, and the return spring 25 is located between the lock rod connecting seat 22 and the locking wrench 27.

Preferably, the locking groove 211 is a circular groove, so that it can be ensured that the locking groove 211 can be interlocked with the locking member 107 (locking ball) after the angle adjuster 101 is rotated.

When locking, firstly, the angle adjuster 101 is rotated to a required angle, the locking rod 21 is inserted into the first lock body 1, and after the locking rod 21 is interlocked with the locking piece 107, the locking wrench 27 is screwed to rotate and lock.

When unlocking, firstly, the locking wrench 27 is rotated to loosen the locking of the locking rod 21, the button 109 is pulled, the button spring 112 pushes the locking rod pushing piece 114 to move, after the locking of the locking piece 107 and the clamping groove 211 is released, the locking rod 21 is completely separated from the first lock body 1 under the action of the return spring 25 and the button spring 112, and returns to the second lock body 2.

As shown in fig. 4 and 6, in an embodiment, a plurality of bead grooves 1012 are axially disposed on the angle adjuster 101, the bead grooves 1012 are disposed on an outer surface of the angle adjuster 101, the fixing base 108 is mounted with bead screws 115, the bead screws 115 extend into the cavity 103, the bead screws 115 are clamped in one of the bead grooves 1012, and when the angle adjuster 101 is rotated, the bead screws 115 can be clamped in the bead grooves 1012 at different positions, and a "click" sound can be heard at the same time, which indicates that the angle adjuster 101 is rotated to a position.

As shown in fig. 8 to 10, in another aspect, an embodiment of the present invention provides a display screen assembly, which includes a plurality of unit display screens 3 and a plurality of arc-shaped locks as described above, and two adjacent unit display screens 3 are spliced by the arc-shaped locks. Each all set up on the unit display screen 3 first lock body 1 and second lock body 2, first lock body 1 with second lock body 2 installs the different sides at unit display screen 3.

In an embodiment, two adjacent unit display screens 3 are spliced through two arc-shaped locks, and at the joint of the two adjacent unit display screens, a first lock body 1 is installed on one of the unit display screens, and a second lock body 2 is installed on the other unit display screen, so that the two unit display screens 3 are spliced through the first lock body 1 and the second lock body 2.

In another embodiment not shown in the drawings, two adjacent unit display screens are spliced through two arc-shaped locks, and at the joint of the two adjacent unit display screens, one of the unit display screens is provided with a first lock body 1 of a first arc-shaped lock and a second lock body 2 of a second arc-shaped lock, and the other unit display screen is provided with a second lock body 2 of the first arc-shaped lock and a first lock body 3 of the second arc-shaped lock, and the splicing of the two unit display screens 3 is realized through the first lock body 1 and the second lock body 2.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. An arc lock is used for splicing two adjacent unit display screens and is characterized by comprising a first lock body and a second lock body;

the first lock body comprises an angle adjusting assembly, a separation sleeve piece, a locking sleeve piece and a locking piece, wherein the angle adjusting assembly is used for adjusting the splicing angle of two adjacent unit display screens, a cavity for accommodating the separation sleeve piece is formed in the angle adjusting assembly, the separation sleeve piece is sleeved outside the locking sleeve piece, and the locking piece is arranged on the outer wall of the locking sleeve piece;

the second lock body comprises a lock rod, a clamping groove is formed in the lock rod, the lock rod can stretch into the locking sleeve piece, so that the separation sleeve piece is opposite to the locking sleeve piece to move, the locking piece is pushed to move towards the locking rod in the locking sleeve piece, and therefore the locking piece is locked in the clamping groove of the lock rod, and the first lock body and the second lock body are temporarily fixed.

2. The arc-shaped lock of claim 1, wherein the disengagement kit comprises a first section kit and a second section kit, the thickness of the second section kit is smaller than that of the first section kit, an embedded groove is formed in the outer wall of the locking kit, the locking member is arranged in a gap formed by the embedded groove and the second section kit, and the first section kit is used for pressing the locking member when the locking kit and the disengagement kit are relatively moved.

3. The arc lock of claim 1, wherein a flange is provided at an end of the locking sleeve adjacent to the locking bar, and a locking sleeve fixing screw is mounted on the angle adjustment assembly and abuts against a side of the flange to fix the flange between an inner wall of the cavity and the locking sleeve fixing screw.

4. The arc lock of claim 1, wherein the first lock body further comprises a button, a button push rod, a sleeve spring, a button spring and a lock rod push piece, wherein the button is installed at one end of the button push rod, the other end of the button push rod is connected with the disengagement sleeve, the sleeve spring is sleeved outside the button push rod, and the sleeve spring is arranged in the cavity;

the locking rod pushing piece is arranged in the locking sleeve piece, and the button spring is connected between the locking rod pushing piece and the locking sleeve piece.

5. The arc lock of claim 1, wherein a counter bore is provided on the disengagement sleeve, a waist hole is provided on the locking sleeve, and the counter bore and the waist hole are connected to limit the movement stroke of the disengagement sleeve outside the locking sleeve.

6. The arc lock according to claim 1, wherein the first lock body further comprises a fixing base, the angle adjustment assembly comprises an angle adjuster and an angle rotating base, the angle adjuster is screwed outside the angle rotating base, the angle rotating base is mounted on the fixing base, the fixing base is provided with a second positioning hole, the angle rotating base is provided with a second positioning post, and the second positioning post is inserted into the second positioning hole.

7. The arc-shaped lock of claim 6, wherein the second lock body further comprises a locking rod connecting seat and a butting block, the butting block is arranged on one side of the locking rod connecting seat facing the first lock body, a plurality of inclined planes are uniformly arranged on the end surface of the angle adjuster facing the locking rod connecting seat along the circumferential direction, and the angle adjuster rotates to enable different inclined planes to collide with the butting block so as to change the splicing angle between two adjacent unit display screens.

8. The arc lock of claim 7, wherein the second lock body further comprises a return spring, a limit pin and a locking wrench, the locking rod connecting seat is provided with a locking rod passage, and the locking rod passes through the locking rod passage to enter or exit the first lock body; an external thread is arranged at one end of the lock rod, which is far away from the first lock body, the locking wrench is in threaded connection with the lock rod, the reset spring is sleeved on the lock rod, and the reset spring is positioned between the lock rod connecting seat and the locking wrench; the lock rod is provided with a sliding groove, and the limiting pin is matched in the sliding groove.

9. A display screen assembly comprising a plurality of unit display screens and a plurality of arcuate locks according to any one of claims 1 to 8, adjacent two of said unit display screens being joined by said arcuate locks.

10. The display screen assembly of claim 9, wherein two adjacent unit display screens are spliced by two arc-shaped locks, and 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 at the joint of the two adjacent unit display screens.

Images