Locking assembly, locking device and LED display device

Abstract

The application provides a locking assembly, a locking device and an LED display device, wherein the locking assembly comprises: a mounting seat, an inner portion of the mounting seat being provided with a connecting hole extending along a first direction; a rotating lock cylinder rotatably arranged in the connecting hole, the rotating lock cylinder being provided with a lock hole extending along the first direction; a handle piece connected with the rotating lock cylinder, the handle piece being rotatable to drive the rotating lock cylinder to rotate; a locking piece movably arranged on the handle piece along a second direction and having a locking position for locking with the mounting seat and an unlocking position for being separated from the mounting seat, the second direction being perpendicular to the first direction; and a driving piece movably connected with the handle piece and drivingly matched with the locking piece, the driving piece driving the locking piece to switch from the locking position to the unlocking position. The technical scheme of the application effectively solves the problem that the locking structure in the related art is prone to being stuck during movement.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen connection, in particular to a locking assembly, a locking device and an LED display device. BACKGROUND

[0002] LED display screens are used more and more widely in daily life. In order to facilitate installation, some large display screens are often connected together by multiple smaller display screens. During the connection of the display screens, a locking piece is used to connect the display screens and the connecting frame together.

[0003] In related technologies, the locking piece is achieved by the cooperation of the protruding teeth arranged on the driving handle and the clamping teeth arranged on the mounting seat. When the locking piece is switched between the locked state and the unlocked state, the protruding teeth are moved by the rotation of the driving handle, so as to realize the contact or separation of the protruding teeth and the clamping teeth.

[0004] For example, a Chinese patent with the publication number CN111997969A discloses a fixed connection structure of an LED display screen box and a back frame. Specifically, when the fixed connection structure is in the locked state, the protruding teeth arranged on the mouth opening rod cooperate with the clamping teeth arranged on the tooth ring. When the fixed connection structure is switched from the locked state to the unlocked state, the operation part drives the transmission part to move, so that the protruding teeth are separated from the tooth ring. However, in this arrangement, the protruding teeth may still contact the clamping teeth on the tooth ring during the movement, causing the fixed connection structure to be stuck and making it inconvenient to use the fixed connection structure. SUMMARY

[0005] The main purpose of the present application is to provide a locking assembly, a locking device and an LED display device, so as to solve the problem that the locking structure in related technologies is easy to be stuck during movement.

[0006] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a locking assembly is provided, which comprises: a mounting seat, the inside of the mounting seat is provided with a connecting hole extending along a first direction; a rotating lock core, which is rotatably arranged in the connecting hole, and the rotating lock core is provided with a lock hole extending along the first direction; a handle piece, which is connected with the rotating lock core, and the handle piece is rotated to drive the rotating lock core to rotate; a locking piece, which is movably arranged on the handle piece along a second direction and has a locking position for locking with the mounting seat and an unlocking position for separating from the mounting seat, and the second direction is perpendicular to the first direction; and a driving piece, which is movably connected with the handle piece and drivingly cooperates with the locking piece, and the driving piece drives the locking piece to switch from the locking position to the unlocking position.

[0007] Further, the rotating lock cylinder comprises a rotating cylinder and a stop plate arranged at the outer end of the rotating cylinder, the lock hole comprises a first hole section arranged on the rotating cylinder and a second hole section arranged on the stop plate, the cross-sectional area of the second hole section is smaller than that of the first hole section, so that the inner surface of the stop plate forms a limiting surface.

[0008] Further, the handle piece comprises a cover body part and a handle part connected with each other, the cover body part is provided with a containing space, the cover body part is arranged on the mounting seat, the locking piece is arranged inside the containing space, and a part of the driving piece is arranged inside the cover body part, and the remaining part of the driving piece extends out of the cover body part and forms an operation part.

[0009] Further, the driving piece comprises a rotating plate and a hinged part, the rotating plate is connected between the hinged part and the operation part, the hinged part is a protrusion arranged on the side of the rotating plate and hinged with the cover body part, and the rotating plate is drivingly connected with the locking piece.

[0010] Further, the end surface of the cover body part is provided with a pivot hole, the axis of the pivot hole extends along the first direction, and the protrusion is inserted into the pivot hole.

[0011] Further, the side wall of the pivot hole is provided with a notch part, and part of the structure of the rotating plate is located in the notch part.

[0012] Further, the end surface of the cover body part is provided with a recess structure, the hinged part and the rotating plate are located in the recess structure, and the handle piece further comprises a cover plate arranged in the recess structure to limit the hinged part and the rotating plate.

[0013] Further, the recess structure comprises a first recess and a second recess arranged inside the first recess, the rotating plate is located in the second recess, a boss is arranged in the second recess, the pivot hole is arranged on the boss, the notch part is arranged on the boss, and the cover plate is located in the first recess.

[0014] Further, the locking piece comprises a locking block, a guide structure is arranged between the locking block and the cover body part, the guide structure comprises a guide column and a guide hole, one of the guide column and the guide hole is arranged on the cover body part, and the other of the guide column and the guide hole is arranged on the locking block.

[0015] Further, the guide hole is arranged on the cover body part, the guide column is arranged on the locking block, the extension direction of the guide hole is parallel to the direction from the cover body part to the handle part, the cross section of the mounting seat is circular ring shape, and the locking piece moves along the radial direction of the mounting seat.

[0016] Further, the locking assembly further comprises a reset piece arranged between the guide hole and the guide column.

[0017] Further, the side of the locking block facing the mounting seat is provided with a first tooth part, the outer side wall of the mounting seat is provided with a second tooth part, and the first tooth part and the second tooth part are arranged in meshing.

[0018] Further, the side wall of the mounting seat is provided with a communication groove, the communication groove is arranged along the circumference of the mounting seat, the side wall of the rotating lock cylinder is provided with a first mounting hole, the side wall of the cover part is provided with a second mounting hole, the locking assembly further comprises a connecting pin, the connecting pin is sequentially inserted into the second mounting hole, the communication groove and the first mounting hole, and the handle piece is rotated to move the connecting pin in the communication groove.

[0019] According to the second aspect of the present application, a locking device is provided, comprising a mounting plate and a plurality of locking assemblies, a plurality of assembly holes are arranged on the mounting plate, the plurality of locking assemblies and the plurality of assembly holes are arranged in one-to-one correspondence, the connecting hole of the corresponding locking assembly and the corresponding assembly hole are communicated, wherein the locking assembly is the above-mentioned locking assembly.

[0020] According to the third aspect of the present application, an LED display device is provided, comprising a plurality of display screens and a connecting device, the plurality of display screens are arranged in an array, the connecting device is connected between at least two adjacent display screens, and the connecting device is the above-mentioned locking device.

[0021] The connecting hole is arranged in the mounting seat and extends along the first direction. The rotating lock cylinder is arranged in the connecting hole and can rotate. The lock hole is arranged on the rotating lock cylinder and extends along the first direction. The rotating lock cylinder is connected with the handle piece, and the handle piece is rotated to drive the rotating lock cylinder to rotate. The locking piece is arranged on the handle piece and is movably arranged along the second direction. When the locking piece is locked with the mounting seat, the locking piece is in the locked position. When the locking piece is separated from the mounting seat, the locking piece is in the unlocked position. The second direction is perpendicular to the first direction. The driving piece is movably connected with the handle piece, and the driving piece drives the locking piece to switch from the locked position to the unlocked position. Through the above arrangement, the handle piece can drive the rotating lock cylinder to rotate, the rotating lock cylinder can rotate in the connecting hole, the lock hole facilitates the connection between the locking assembly and other structures, and the locking assembly can play a locking role. The connecting hole and the lock hole both extend along the first direction, the locking piece is movably arranged along the second direction, the first direction is perpendicular to the second direction, that is, the moving direction of the locking piece is perpendicular to the extension direction of the mounting seat and the rotating lock cylinder, so that when the locking piece is separated from the mounting seat, the locking piece will not contact the mounting seat when the handle piece drives the rotating lock cylinder to rotate, thereby avoiding the phenomenon that the locking assembly is stuck during rotation. The driving piece can drive the locking piece to switch from the locked position to the unlocked position. Specifically, the driving piece drives the locking piece to move away from the mounting seat along the second direction, so that the locking piece can be completely separated from the mounting seat, and at this time, the locking piece is in the unlocked position. When the locking piece moves towards the mounting seat along the second direction, the locking piece moves to contact the mounting seat, and at this time, the locking piece is in the locked position. Therefore, the technical scheme of the present application effectively solves the problem that the locking structure in the related art is easily stuck during movement. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 An exploded structural diagram of an embodiment of the locking component according to the present invention is shown;

[0024] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the locking component;

[0025] Figure 3 It shows Figure 2 A front view diagram of the locking component;

[0026] Figure 4 It shows Figure 3 A cross-sectional view of the locking component;

[0027] Figure 5 It shows Figure 2 A three-dimensional structural diagram of the locking component's mounting base and cover plate when they are not installed;

[0028] Figure 6 It shows Figure 2 A three-dimensional structural diagram of the locking component mounting base;

[0029] Figure 7 A top view schematic diagram of an embodiment of the locking device according to the present invention is shown;

[0030] Figure 8 It shows Figure 7 An exploded view of the locking device;

[0031] Figure 9 A three-dimensional structural schematic diagram of an embodiment of the LED display device according to the present invention is shown;

[0032] Figure 10 It shows Figure 9 A partially enlarged schematic diagram of point A on the LED display device;

[0033] Figure 11 It shows Figure 9 A partial cross-sectional view of the locking device of the LED display device after it has been installed on the LED display screen;

[0034] Figure 12 It shows Figure 9 A partial cross-sectional view of the locking mechanism of the LED display device in the locked position;

[0035] Figure 13 A partial enlarged view of the LED display device of Figure 12 Fig. 1 is a schematic view of a lock assembly according to an embodiment of the present application.

[0036] In the drawings:

[0037] 10, mounting seat; 11, connecting hole; 12, communication groove; 13, second tooth part; 20, rotating lock core; 21, lock hole; 211, first hole section; 212, second hole section; 22, rotating cylinder; 23, stop plate; 24, first mounting hole; 30, handle piece; 31, cover body part; 311, containing space; 312, pivot hole; 3121, notch part; 313, recessed structure; 3131, first recess; 3132, second recess; 31321, boss; 314, second mounting hole; 32, handle part; 33, cover plate; 40, locking piece; 41, locking block; 411, first tooth part; 50, driving piece; 51, operation part; 52, rotating plate; 53, hinged part; 531, protrusion; 60, guide structure; 61, guide column; 62, guide hole; 70, reset piece; 80, connecting pin; 100, mounting plate; 101, assembly hole; 200, display screen. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the 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 of the present application. The following description of at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] As shown in Figures 1 to 4 Fig. 1, according to a first aspect of the present embodiment, a lock assembly is provided, comprising a mounting seat 10, a rotating lock core 20, a handle piece 30, a locking piece 40, and a driving piece 50. The mounting seat 10 is internally provided with a connecting hole 11 extending in a first direction. The rotating lock core 20 is rotatably arranged in the connecting hole 11, and the rotating lock core 20 is provided with a lock hole 21 extending in the first direction. The handle piece 30 is connected with the rotating lock core 20, and the handle piece 30 is rotated to drive the rotating lock core 20 to rotate. The locking piece 40 is movably arranged on the handle piece 30 in a second direction and has a locking position for locking with the mounting seat 10 and an unlocking position for separating from the mounting seat 10, and the second direction is perpendicular to the first direction. The driving piece 50 is movably connected with the handle piece 30 and drivingly matched with the locking piece 40, and the driving piece 50 drives the locking piece 40 to switch from the locking position to the unlocking position.

[0040] The technical scheme is applied to the inside of the mounting base 10 is provided with a connecting hole 11 extending along a first direction. A rotatable rotating lock cylinder 20 is arranged in the connecting hole 11, and the rotating lock cylinder 20 is provided with a lock hole 21 extending along the first direction. The rotating lock cylinder 20 is connected with a handle piece 30, and the handle piece 30 is rotated to drive the rotating lock cylinder 20 to rotate. A locking piece 40 is arranged on the handle piece 30, and the locking piece 40 is movably arranged along a second direction. When the locking piece 40 is locked with the mounting base 10, the locking piece 40 is in a locked position. When the locking piece 40 is separated from the mounting base 10, the locking piece 40 is in an unlocked position. The second direction is perpendicular to the first direction. A driving piece 50 is movably connected with the handle piece 30, and the driving piece 50 drives the locking piece 40 to switch from the locked position to the unlocked position. Through the above arrangement, the handle piece 30 can drive the rotating lock cylinder 20 to rotate, the rotating lock cylinder 20 can rotate in the connecting hole 11, the lock hole 21 facilitates the connection of the locking assembly and other structures, and the locking assembly can play a locking role. The connecting hole 11 and the lock hole 21 both extend along the first direction, the locking piece 40 is movably arranged along the second direction, the first direction is perpendicular to the second direction, that is, the moving direction of the locking piece 40 is perpendicular to the extension direction of the mounting base 10 and the rotating lock cylinder 20. When the handle piece 30 drives the rotating lock cylinder 20 to rotate after the locking piece 40 is separated from the mounting base 10, the locking piece 40 will not contact the mounting base 10, thereby avoiding the locking assembly from being stuck during rotation. The driving piece 50 can drive the locking piece 40 to switch from the locked position to the unlocked position. Specifically, the driving piece 50 drives the locking piece 40 to move away from the mounting base 10 along the second direction, so that the locking piece 40 can be completely separated from the mounting base 10. At this time, the locking piece 40 is in the unlocked position. When the locking piece 40 moves towards the mounting base 10 along the second direction, the locking piece 40 moves to contact the mounting base 10. At this time, the locking piece 40 is in the locked position. Therefore, the technical scheme of the embodiment effectively solves the problem that the locking structure in the related art is easily stuck during movement.

[0041] Specifically, as shown in Figure 9 and Figure 10 , the other structure refers to a locking column connected with the locking assembly, and a limiting protrusion is arranged at the front end of the locking column. The front end of the locking column is inserted into the inside of the locking assembly. The locking piece 40 is connected with the driving piece 50, and the driving piece 50 is swingably arranged.

[0042] It should be noted that the arrangement of the lock hole 21 facilitates the insertion of the locking column into the inside of the locking assembly, that is, the rotating lock cylinder 20 is not provided with the locking column. This makes the overall structure of the locking assembly more compact, that is, the locking assembly can occupy less space, and also facilitates the storage and transportation of the locking assembly. The first direction refers to the axis direction of the connecting hole 11.

[0043] As shown in Figure 4and Figure 5 As shown, in this embodiment, the rotary lock cylinder 20 includes a rotary cylinder 22 and a stop plate 23 disposed at the outer end of the rotary cylinder 22. The lock hole 21 includes a first hole section 211 disposed on the rotary cylinder 22 and a second hole section 212 disposed on the stop plate 23. The cross-sectional area of ​​the second hole section 212 is smaller than the cross-sectional area of ​​the first hole section 211 so that the inner surface of the stop plate 23 forms a limiting surface. With the above configuration, when the locking assembly is connected to the locking pin, the front end of the locking pin enters the first hole section 211 through the second hole section 212, that is, the locking pin enters the lock hole 21. Then, the front end of the locking pin contacts the limiting surface. Since the cross-sectional area of ​​the second hole section 212 is smaller than the cross-sectional area of ​​the first hole section 211, the locking pin will not fall off, thus realizing the connection of the locking assembly.

[0044] Specifically, "the front end of the locking post is in contact with the limiting surface" means that the end face of the front end of the locking post facing the rear end of the locking post is in contact with the limiting surface.

[0045] Preferably, the second hole segment 212 is a strip hole with a rectangular cross-section, and the two end faces of the rectangle in the length direction are rounded.

[0046] like Figures 1 to 5 As shown, in this embodiment, the handle 30 includes a cover portion 31 and a handle portion 32 connected to each other. The cover portion 31 has a receiving space 311 and covers the mounting base 10. The locking member 40 is located inside the receiving space 311. A portion of the driving member 50 is located inside the cover portion 31, and the remaining portion of the driving member 50 extends outward from the cover portion 31 to form an operating part 51. The receiving space 311 allows the mounting base 10, the rotary lock cylinder 20, and the locking member 40 to be disposed inside the cover portion 31, facilitating that when the handle portion 32 drives the cover portion 31 to rotate, the mounting base 10, the rotary lock cylinder 20, and the locking member 40 rotate together with the handle 30. The operating part 51 is located outside the cover portion 31, facilitating the driving of the locking member 40 from the locked position to the unlocked position.

[0047] Specifically, the accommodating space 311 includes a first accommodating part and a second accommodating part that are interconnected, the mounting base 10 is disposed in the first accommodating part, and the locking member 40 is movably disposed in the second accommodating part.

[0048] like Figures 1 to 3 as well as Figure 5As shown in the drawings, in the embodiment, the driving member 50 comprises a rotating plate 52 and a hinged part 53, the rotating plate 52 is connected between the hinged part 53 and the operating part 51, the hinged part 53 is a protrusion 531 arranged on the side of the rotating plate 52 and hinged with the cover part 31, and the rotating plate 52 is drivingly connected with the locking member 40. The operating part 51 rotates to drive the rotating plate 52 to rotate around the protrusion 531 hinged with the cover part 31, and then the rotating plate 52 can drive the locking member 40 to move in the second direction, so that the locking member 40 can move from the locked position to the unlocked position.

[0049] As shown in the drawings, Figure 1 In the embodiment, the end surface of the cover part 31 is provided with a pivot hole 312, the axis of the pivot hole 312 extends in the first direction, and the protrusion 531 is inserted into the pivot hole 312. The pivot hole 312 allows the protrusion 531 to be connected with the cover part 31, and then when the operating part 51 drives the rotating plate 52 to rotate, the rotating plate 52 can rotate around the pivot hole 312, and then drive the movement of the locking member 40, and at the same time, when the handle part 32 drives the cover part 31 to move, the cover part 31 can also drive the driving member 50 to move, that is, the position of the driving member 50 can be changed.

[0050] As shown in the drawings, Figure 1 In the embodiment, the side wall of the pivot hole 312 is provided with a notch part 3121, and part of the structure of the rotating plate 52 is located in the notch part 3121. The above arrangement allows part of the structure of the rotating plate 52 to enter the notch part 3121 when the protrusion 531 is inserted into the pivot hole 312, avoiding interference of the cover part 31 with the rotation of the rotating plate 52, and also making the overall structure of the locking assembly more compact.

[0051] As shown in the drawings, Figure 1 In the embodiment, the end surface of the cover part 31 is provided with a recess structure 313, the hinged part 53 and the rotating plate 52 are located in the recess structure 313, and the handle member 30 further comprises a cover plate 33 arranged in the recess structure 313 to limit the hinged part 53 and the rotating plate 52. The arrangement of the recess structure 313 allows the hinged part 53 and the rotating plate 52 to be installed in the cover part 31 without protruding out of the cover part 31, and also facilitates the installation of the cover plate 33 in the recess structure 313, avoiding the hinged part 53 and the rotating plate 52 from falling off the cover part 31. The above arrangement also makes the overall structure of the locking assembly more compact after the driving member 50 is installed in the cover part 31, and can occupy less space.

[0052] Preferably, after the cover plate 33 is installed in the cover part 31, the cover plate 33 is flush with the outer surface of the cover part 31.

[0053] Specifically, the driving member 50 is located between the cover plate 33 and the locking member 40.

[0054] As shown in the drawings, Figure 1, Figure 2 as well as Figure 5 As shown, in this embodiment, the recessed structure 313 includes a first recess 3131 and a second recess 3132 disposed inside the first recess 3131. The rotating plate 52 is located inside the second recess 3132, and a boss 31321 is provided inside the second recess 3132. A pivot hole 312 is provided on the boss 31321, a notch 3121 is located on the boss 31321, and a cover plate 33 is located inside the first recess 3131. This arrangement allows the cover plate 33 to be installed inside the first recess 3131 after the rotating plate 52 and the hinge 53 are installed on the cover portion 31, thereby connecting the cover plate 33 and the cover portion 31 and preventing the drive member 50 from detaching from the cover portion 31. It also makes the overall structure of the drive member 50 and the handle member 30 more compact and aesthetically pleasing after they are connected.

[0055] Preferably, after the rotating plate 52 and the protrusion 531 are installed into the recessed structure 313, the side of the rotating plate 52 away from the second recess 3132 is flush with the side of the protrusion 531 away from the second recess 3132, and is also flush with the end face of the side of the first recess 3131 close to the second recess 3132. This facilitates the installation of the cover plate 33 and also makes the structure of the cover plate 33 relatively simple.

[0056] like Figure 1 as well as Figures 11 to 13 As shown, in this embodiment, the locking member 40 includes a locking block 41, and a guide structure 60 is provided between the locking block 41 and the cover portion 31. The guide structure 60 includes a guide post 61 and a guide hole 62. One of the guide post 61 and the guide hole 62 is disposed on the cover portion 31, and the other of the guide post 61 and the guide hole 62 is disposed on the locking block 41. The above arrangement allows the guide post 61 to extend into the guide hole 62 when the locking block 41 moves in the second direction under the drive of the rotating plate 52. The guide hole 62 can provide guidance and limit for the movement of the guide post 61, so that the movement of the locking block 41 is smoother when the locking member 40 switches from the locked position to the unlocked position.

[0057] Preferably, a connecting post is provided on the side of the locking block 41 facing the rotating plate 52, and an insertion hole is provided on the rotating plate 52. The connecting post is inserted into the insertion hole to connect the locking block 41 and the rotating plate 52. Thus, when the operating part 51 drives the rotating plate 52 to rotate, the rotating plate 52 can drive the locking block 41 to move.

[0058] like Figure 4As shown, in this embodiment, a guide hole 62 is provided on the cover portion 31, and a guide post 61 is provided on the locking block 41. The extending direction of the guide hole 62 is parallel to the direction from the cover portion 31 to the handle portion 32. The cross-section of the mounting base 10 is annular, and the locking member 40 moves along the radial direction of the mounting base 10. The extending direction of the guide hole 62 is parallel to the direction from the cover portion 31 to the handle portion 32, allowing the guide post 61 to move in the direction from the cover portion 31 to the handle portion 32, and also ensuring that the guide hole 62 does not interfere with the movement of the guide post 61. The cross-section of the mounting base 10 is annular, that is, the cross-section of the connecting hole 11 is circular, allowing the rotating lock cylinder 20 to rotate within the mounting base 10, and also ensuring that when the handle member 30 drives the locking member 40 to rotate, the mounting base 10 does not affect the rotation of the locking member 40. The locking member 40 moves along the radial direction of the mounting base 10, that is, the second direction is the radial direction of the mounting base 10.

[0059] like Figure 4 As shown, in this embodiment, the locking assembly further includes a reset member 70, which is disposed between the guide hole 62 and the guide post 61. The reset member 70 provides a reset force that causes the locking member 40 to move toward the mounting base 10 when it moves from the unlocked position to the locked position. Since the reset member 70 is disposed between the guide hole 62 and the guide post 61, i.e., outside the guide post 61, the guide post 61 provides guidance and limitation for the movement of the reset member 70.

[0060] Preferably, the reset member 70 is a spring. Of course, in embodiments not shown in the figures, the reset member 70 may also be rubber or other elastic materials.

[0061] like Figure 1 As shown, in this embodiment, the locking block 41 has a first tooth 411 on the side facing the mounting base 10, and a second tooth 13 is provided on the outer side wall of the mounting base 10. The first tooth 411 and the second tooth 13 are engaged. This arrangement ensures that when the locking member 40 is in the locked position, the engagement of the first tooth 411 and the second tooth 13 limits the locking block 41 and the mounting base 10, preventing any change in their relative positions.

[0062] Preferably, a third tooth is also provided on the outer wall of the mounting base 10, the third tooth being spaced apart from the second tooth 13. When the first tooth 411 engages with the second tooth 13, the locking member is in the locked position. When the second tooth 13 engages with the third tooth, the locking pin can be pulled out from the rotating lock cylinder 20.

[0063] like Figure 1 as well as Figure 6As shown, in the embodiment, the side wall of the mounting base 10 is provided with a communication groove 12, the communication groove 12 is arranged along the circumference of the mounting base 10, the side wall of the rotating lock cylinder 20 is provided with a first mounting hole 24, the side wall of the cover body 31 is provided with a second mounting hole 314, the locking assembly further comprises a connecting pin 80, the connecting pin 80 is sequentially inserted into the second mounting hole 314, the communication groove 12 and the first mounting hole 24, and the handle piece 30 is rotated to move the connecting pin 80 in the communication groove 12. The communication groove 12 is arranged along the circumference of the mounting base 10, so that when the connecting pin 80 slides in the communication groove 12, the connecting pin 80 slides along the circumference of the mounting base 10, and when the handle piece 30 rotates, the connecting pin 80 is driven to rotate, and the connecting pin 80 can drive the rotating lock cylinder 20 to slide along the axis of the mounting base 10. The arrangement of the connecting pin 80 can also connect the mounting base 10, the handle piece 30 and the rotating lock cylinder 20, facilitate the synchronous rotation of the handle piece 30 and the rotating lock cylinder 20 relative to the mounting base 10, and also make the mounting base 10, the handle piece 30 and the rotating lock cylinder 20 not fall off after being connected, thereby ensuring the stability of the locking assembly in use.

[0064] Preferably, the communication groove 12 is a plurality of, and the connecting pin 80 is correspondingly the same number as the communication groove 12, so that the connection of the mounting base 10, the rotating lock cylinder 20 and the handle piece 30 is more stable. The communication groove 12 is partially arranged in the second tooth part 13 or the third tooth part.

[0065] As shown in the drawings, Figure 7 and Figure 8 According to the second aspect of the embodiment, a locking device is provided, comprising a mounting plate 100 and a plurality of locking assemblies, a plurality of assembly holes 101 are arranged on the mounting plate 100, and the plurality of locking assemblies and the plurality of assembly holes 101 are arranged one by one, the connecting hole 11 of the corresponding locking assembly and the corresponding assembly hole 101 are communicated, and the locking assembly is the above-mentioned locking assembly. The assembly hole 101 is arranged, so that after the locking assembly is installed on the mounting plate 100, the locking column can pass through the assembly hole 101 and enter the connecting hole 11 to be connected with the locking assembly, and then the locking assembly can be locked and connected with the locking column. When the locking piece 40 of the above-mentioned locking assembly rotates, it will not contact the mounting base 10, avoiding the phenomenon that the locking piece 40 is stuck during rotation, and the locking device with the above-mentioned locking assembly also has the above-mentioned advantages.

[0066] As shown in the drawings, Figures 9 to 13As shown, according to the third aspect of the embodiment, an LED display device is provided, comprising a plurality of display screens 200 and connecting devices, the plurality of display screens 200 are arranged in an array, and the connecting devices are connected between at least two adjacent display screens 200, and the connecting devices are the above-mentioned locking devices. The connecting devices are connected between at least two adjacent display screens 200, that is, due to the provision of a plurality of assembly holes 101, one locking device can connect at least two display screens 200, and thus in the assembly process of the LED display device, fewer connecting devices can be used, facilitating the assembly and disassembly of the LED display device, and improving the assembly precision and assembly efficiency of the LED display device. The locking member 40 of the above-mentioned locking device does not contact the mounting seat 10 when rotating, avoiding the phenomenon that the locking member 40 is stuck during rotation. The LED display device with the above-mentioned locking device also has the above-mentioned advantages. It also makes the operation experience of the LED display device better.

[0067] Preferably, the locking column is mounted on the back side of the display screen 200.

[0068] Specifically, the use process of the LED display device is as follows:

[0069] 1. Mount the locking column to the back side of the display screen, and splice a plurality of display screens 200;

[0070] 2. Align the locking device with the locking column, so that the locking column is inserted into the locking hole 21, that is, the locking device moves in the first direction;

[0071] 3. Press the operation part 51 to drive the rotating plate 52 to rotate, and thus drive the locking block 41 to move away from the mounting seat 10, until the first tooth part 411 is completely separated from the third tooth part;

[0072] 4. Rotate the handle member 30, and thus drive the locking block 41 to rotate, until the first tooth part 411 is aligned with the second tooth part 13;

[0073] 5. Loosen the operation part 51, so that the locking block 41 moves towards the mounting seat 10 under the action of the restoring member 70, until the first tooth part 411 is completely engaged with the second tooth part 13, at this time the locking member 40 is in the locked position;

[0074] 6. When disassembling the LED display device, press the operation part 51 to make the rotating plate 52 rotate, and thus make the locking block 41 move away from the mounting seat 10, that is, the locking block moves in the second direction, until the first tooth part 411 is completely separated from the second tooth part 13, at this time the locking member 40 is in the unlocked position;

[0075] 7. Rotate the handle member 30, and thus drive the locking block 41 to rotate, until the first tooth part 411 is aligned with the third tooth part;

[0076] 8. Loosen the operating part 51, so that the locking block 41 moves towards the direction of the mounting base 10 under the action of the restoring member 70, until the first tooth part and the third tooth part are completely engaged;

[0077] 9. Separate the locking device from the locking column.

[0078] In addition, it should be noted that the use of the words "first", "second" and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0079] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A lock assembly comprising: The utility model relates to a lock device, including: a mounting base (10) provided with a connecting hole (11) extending in a first direction inside the mounting base (10); a rotating lock cylinder (20) rotatably arranged in the connecting hole (11), the rotating lock cylinder (20) being provided with a lock hole (21) extending in the first direction; a handle piece (30) connected with the rotating lock cylinder (20), the handle piece (30) being rotated to drive the rotating lock cylinder (20) to rotate; a locking piece (40) movably arranged on the handle piece (30) in a second direction and having a locking position for locking with the mounting base (10) and an unlocking position for separating from the mounting base (10), the second direction being perpendicular to the first direction; a driving piece (50) movably connected with the handle piece (30) and drivingly connected with the locking piece (40), the driving piece (50) driving the locking piece (40) to switch from the locking position to the unlocking position; the handle piece (30) comprising a cover body part (31) and a handle part (32) connected with each other, the cover body part (31) being provided with an accommodation space (311), the cover body part (31) being arranged on the mounting base (10), the locking piece (40) being arranged inside the accommodation space (311), a part of the driving piece (50) being arranged inside the cover body part (31), the rest of the driving piece (50) extending out of the cover body part (31) and forming an operation part (51); the driving piece (50) comprising a rotating plate (52) and a hinge part (53), the rotating plate (52) being connected between the hinge part (53) and the operation part (51), the hinge part (53) being a protrusion (531) arranged on a side of the rotating plate (52) and hingedly connected with the cover body part (31), the rotating plate (52) being drivingly connected with the locking piece (40); an end surface of the cover body part (31) being provided with a pivot hole (312), an axis of the pivot hole (312) extending in the first direction, the protrusion (531) being inserted into the pivot hole (312); a side wall of the pivot hole (312) being provided with a notch part (3121), part of a structure of the rotating plate (52) being arranged in the notch part (3121); the accommodation space (311) comprising a first accommodation part and a second accommodation part in communication with each other, the mounting base (10) being arranged in the first accommodation part, the locking piece (40) being movably arranged in the second accommodation part.

2. The lock assembly of claim 1, wherein, the rotating lock cylinder (20) comprising a rotating cylinder (22) and a stop plate (23) arranged at an outer end of the rotating cylinder (22), the lock hole (21) comprising a first hole section (211) arranged on the rotating cylinder (22) and a second hole section (212) arranged on the stop plate (23), a cross-sectional area of the second hole section (212) being smaller than a cross-sectional area of the first hole section (211) so that an inner surface of the stop plate (23) forms a limiting surface.

3. The lock assembly of claim 1, wherein, An end face of the cover body part (31) is provided with a recess structure (313), the hinge part (53) and the rotating plate (52) are located in the recess structure (313), and the handle piece (30) further comprises a cover plate (33) which is arranged in the recess structure (313) to limit the hinge part (53) and the rotating plate (52).

4. The lock assembly of claim 3, wherein, The recess structure (313) comprises a first recess (3131) and a second recess (3132) arranged inside the first recess (3131), the rotating plate (52) is located in the second recess (3132), the second recess (3132) is provided with a boss (31321), the pivot hole (312) is arranged on the boss (31321), the notch part (3121) is located on the boss (31321), and the cover plate (33) is located in the first recess (3131).

5. The locking assembly of claim 1 or 2, wherein, The locking piece (40) comprises a locking block (41), a guide structure (60) is arranged between the locking block (41) and the cover body part (31), the guide structure (60) comprises a guide column (61) and a guide hole (62), one of the guide column (61) and the guide hole (62) is arranged on the cover body part (31), and the other of the guide column (61) and the guide hole (62) is arranged on the locking block (41).

6. The lock assembly of claim 5, wherein, The guide hole (62) is arranged on the cover body part (31), the guide column (61) is arranged on the locking block (41), the extension direction of the guide hole (62) is parallel to the direction from the cover body part (31) to the handle part (32), the cross section of the mounting seat (10) is a circular ring, and the locking piece (40) moves along the radial direction of the mounting seat (10).

7. The lock assembly of claim 6, wherein, The locking assembly further comprises a reset piece (70) arranged between the guide hole (62) and the guide column (61).

8. The lock assembly of claim 7, wherein, A first tooth part (411) is arranged on the side of the locking block (41) facing the mounting seat (10), a second tooth part (13) is arranged on the outer side wall of the mounting seat (10), and the first tooth part (411) and the second tooth part (13) are arranged in meshing.

9. The locking assembly of claim 1 or 2, wherein, A communication groove (12) is arranged on the side wall of the mounting seat (10), the communication groove (12) is arranged along the circumference of the mounting seat (10), a first mounting hole (24) is arranged on the side wall of the rotating lock cylinder (20), a second mounting hole (314) is arranged on the side wall of the cover body part (31), the locking assembly further comprises a connecting pin (80), the connecting pin (80) is sequentially inserted into the second mounting hole (314), the communication groove (12) and the first mounting hole (24), and the handle piece (30) is rotated to move the connecting pin (80) in the communication groove (12).

10. A locking device characterized by The display screen array comprises a mounting plate (100) and a plurality of locking assemblies, a plurality of assembly holes (101) are arranged on the mounting plate (100) in an array, and the plurality of locking assemblies and the plurality of assembly holes (101) are arranged in one-to-one correspondence, the connecting hole (11) of the corresponding locking assembly and the corresponding assembly hole (101) are communicated, wherein the locking assembly is the locking assembly in any one of claims 1-9.

11. An LED display device, characterized by, The display screen array comprises a plurality of display screens (200) and a connecting device, the plurality of display screens (200) are arranged in an array, and the connecting device is connected between at least two adjacent display screens (200), wherein the connecting device is the locking device in claim 10.

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