LED display module and LED display device

Abstract

The application provides an LED display module and an LED display device. The LED display module comprises a display module body and a lockset. The lockset comprises a lock seat arranged at the rear side of the display module body, a lock core rotatably arranged in the lock seat, a locking piece, an interference piece rotatably sleeved on the lock core and arranged in the axial direction of the lock core and spaced from the locking piece, the interference piece having an interference position at the front side of the connecting beam to lift the display module body and a avoiding position arranged away from the connecting beam, and an elastic linkage arranged between the locking piece and the interference piece. When the locking piece is in the unlocking position, the interference piece is driven to the interference position by the elastic linkage. When the locking piece is rotated from the unlocking position to the locking position, the interference piece is rotated from the interference position to the avoiding position. The technical scheme of the application effectively solves the problem that the LED display module is easily locked in the box through the lockset in the related art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of LED display, in particular to an LED display module and an LED display device. BACKGROUND

[0002] The LED display device is a kind of flat panel display, and is used to display text, images, videos, video signals and other information.

[0003] The LED display device in the related art installs the LED display module on the cabinet through a plurality of locks, but the problem of missing locking is prone to occur due to too many locks. SUMMARY

[0004] The main purpose of the present application is to provide an LED display module and an LED display device to solve the problem of missing locking of the LED display module in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an LED display module is provided, which comprises a display module body and a lock, the lock comprising: a lock seat arranged at the rear side of the display module body; a lock core rotatably arranged in the lock seat; a locking member connected with the lock core and rotating synchronously, the locking member having a locking position for abutting against the rear side of the connecting beam to lock the display module body on the connecting beam, and an unlocking position for avoiding the connecting beam to enable the display module body to be separated from the cabinet; an interference member rotatably sleeved on the lock core, and the interference member is arranged in the axial direction of the lock core and spaced from the locking member, the interference member having an interference position for being located at the front side of the connecting beam to lift the display module body, and an avoiding position for being arranged away from the connecting beam; and an elastic linkage member arranged between the locking member and the interference member, wherein when the locking member is in the unlocking position, the interference member is driven to the interference position by the elastic linkage member, and when the locking member rotates from the unlocking position to the locking position, the interference member rotates from the interference position to the avoiding position.

[0006] Further, the interference member comprises a rotating sleeve sleeved outside the lock core and an interference arm connected to the outer side wall of the rotating sleeve, the first end of the elastic linkage member is connected to the locking member, and the second end of the elastic linkage member is connected to the interference arm.

[0007] Further, the elastic linkage member comprises a torsion spring, the end of the first torsion arm of the torsion spring is inserted into the locking member, and the end of the second torsion arm of the torsion spring is inserted into the interference arm.

[0008] Further, the interference piece further comprises a first driving block connected to the outer sidewall of the rotating sleeve, the first driving block is arranged in a spaced manner with the interference arm, the locking piece comprises a locking arm and a second driving block arranged on the side of the locking arm facing the rotating sleeve, the interference arm has a dimension extending along the radial direction of the rotating sleeve greater than the dimension of the first driving block extending along the radial direction of the rotating sleeve, the second driving block is drivingly matched with the first driving block, so that when the locking piece rotates from the unlocking position to the locking position, the interference piece can be driven to rotate from the interference position to the avoiding position.

[0009] Further, the lock cylinder comprises a lock disc rotatably arranged at the lock seat and a core rod penetrating through the lock disc, the front part of the core rod is provided with a front operation hole, and the rear part of the core rod is rotationally matched with the locking piece.

[0010] Further, the lock seat is provided with a first limiting part, and the lock disc is provided with a second limiting part limiting matched with the first limiting part, the first limiting part and the second limiting part are limiting matched to limit the rotation range of the lock disc, so that the locking piece is switched between the unlocking position and the locking position.

[0011] Further, the first limiting part comprises a limiting column, the second limiting part comprises a limiting hole, the limiting column penetrates through the limiting hole, the limiting hole extends along the circumferential direction of the lock disc, the limiting column has a first limiting position and a second limiting position limiting matched with the hole sidewall of the two ends of the limiting hole respectively, when the limiting column is in the first limiting position, the locking piece is in the unlocking position, and when the limiting column is in the second limiting position, the locking piece is in the locking position.

[0012] Further, the lock further comprises a positioning bead and a first positioning hole and a second positioning hole limiting matched with the positioning bead, the positioning bead is arranged on the lock seat, and the first positioning hole and the second positioning hole are arranged in a spaced manner on the lock disc, when the positioning bead is limiting matched with the first positioning hole, the locking piece is kept in the unlocking position, and when the positioning bead is limiting matched with the second positioning hole, the locking piece is kept in the locking position.

[0013] Further, the display module body is installed on the connecting beam through a plurality of magnetic attraction structures, each magnetic attraction structure comprises a first magnetic attraction piece and a second magnetic attraction piece in magnetic attraction cooperation, the first magnetic attraction piece is arranged on the display module body, and the second magnetic attraction piece is arranged on the connecting beam, the lock is a plurality of locks, at least one lock is arranged adjacent to one of the plurality of magnetic attraction structures, and when the interference piece of the lock is in the interference position, the interference piece is located between the first magnetic attraction piece and the second magnetic attraction piece of the magnetic attraction structure adjacent thereto.

[0014] According to another aspect of the present application, an LED display device is provided, comprising a box body and an LED display module, the display module body is installed on the connecting beam of the box body, and the LED display module is the above-mentioned LED display module.

[0015] The application discloses a LED display module and a LED display device. The LED display module is installed on a connecting beam of a box body. The LED display module comprises a display module body and a lock. The lock comprises a lock seat, a lock core, a locking piece, an interference piece and an elastic linkage. The lock seat is arranged on the rear side of the display module body. The lock core is rotatably arranged in the lock seat. The locking piece is connected with the lock core and rotates synchronously. The locking piece has a locking position for abutting against the rear side of the connecting beam to lock the display module body on the connecting beam and an unlocking position for avoiding the connecting beam to separate the display module body from the box body. When operating from the front side of the LED display module, a tool is used to drive the lock core to rotate to lock the display module body on the connecting beam or separate the display module body from the box body. When operating from the rear side of the LED display module, the locking piece is directly driven to rotate to lock the display module body on the connecting beam or separate the display module body from the box body. The interference piece is rotatably sleeved on the lock core. The interference piece is arranged in the axial direction of the lock core and is spaced from the locking piece. The interference piece has an interference position for being located on the front side of the connecting beam to lift the display module body and an avoiding position for being arranged away from the connecting beam. The elastic linkage is arranged between the locking piece and the interference piece to enable the locking piece to drive the interference piece to switch between the interference position and the avoiding position through elastic force or linkage. When the locking piece is in the unlocking position, the interference piece is driven to the interference position through the elastic linkage. When the locking piece rotates from the unlocking position to the locking position, the interference piece rotates from the interference position to the avoiding position. During the process of installing the LED display module of the LED display device on the box body, when the locking piece is in the unlocking position, the interference piece is located on the front side of the connecting beam to lift the display module body under the elastic force of the elastic linkage, so that the front surface of the LED display device is uneven, and an operator is reminded to drive the lock core to lock the display module body on the connecting beam to avoid the occurrence of a missing locking phenomenon. Then, the lock core is driven to rotate by using a tool or the locking piece is directly driven to rotate, so that the locking piece is in the locking position, and the interference piece rotates together with the locking piece under the linkage of the elastic linkage, and the interference piece can be in the avoiding position. At this time, the LED display module and the box body are not interfered, the interference piece is arranged away from the connecting beam, the LED display device can be fixed to the box body, and the front surface of the LED display device is flat. When the LED display module needs to be taken off from the box body, the lock core or the locking piece is driven to switch the locking piece from the locking position to the unlocking position, and the interference piece rotates from the avoiding position to the interference position. However, the LED display module has not been taken off from the box body, and the interference arm abuts against the connecting beam of the box body under the elastic force of the elastic linkage. When the LED display module is taken off from the box body, the side surface of the connecting beam does not block the interference piece when the locking piece moves forward with the display module body by a distance, the interference arm rotates to the front side of the connecting beam under the elastic force of the elastic linkage, and the interference piece is in the interference position.Therefore, the technical solution of this application effectively solves the problem of missed locks that easily occur when LED display modules are installed on the cabinet using locks in related technologies. Attached Figure Description

[0016] 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:

[0017] Figure 1 A front view schematic diagram of the locking member in the locked position according to an embodiment of the LED display device of the present invention is shown;

[0018] Figure 2 It shows Figure 1 A partially enlarged schematic diagram of point A on the LED display device;

[0019] Figure 3 It shows Figure 1 A cross-sectional schematic diagram of an LED display device;

[0020] Figure 4 It shows Figure 3 A partially enlarged schematic diagram of point B on the LED display device;

[0021] Figure 5 A front view schematic diagram of an embodiment of an LED display module according to the present invention is shown;

[0022] Figure 6 It shows Figure 5 A three-dimensional structural diagram of the locking mechanism of the LED display module in the unlocked position;

[0023] Figure 7 It shows Figure 6 A partially enlarged schematic diagram of point C of the LED display module;

[0024] Figure 8 It shows Figure 5 A three-dimensional structural diagram of the LED display module without the lock installed;

[0025] Figure 9 It shows Figure 8 A partially enlarged schematic diagram of point D of the LED display module;

[0026] Figure 10 A three-dimensional structural schematic diagram of an embodiment of the lock and tool cooperation according to the present invention is shown;

[0027] Figure 11 It shows Figure 10 A three-dimensional structural diagram of the lock and tool working together from another angle;

[0028] Figure 12 An exploded structural diagram of a lockset is shown. Figure 10 An exploded structural diagram of a lockset is shown.

[0029] Wherein, the above-mentioned drawings include the following reference signs:

[0030] 10, LED display module; 21, display module body;

[0031] 31, lockset; 32, lock seat; 321, coaming; 322, mounting groove; 323, limiting column; 324, positioning bead; 33, lock cylinder; 331, lock disc; 332, core rod; 333, front operation hole; 334, limiting hole; 335, first positioning hole; 336, second positioning hole; 34, locking piece; 341, second driving block; 342, locking arm; 35, interference piece; 351, rotating sleeve; 352, interference arm; 353, first driving block; 36, torsional spring; 37, baffle;

[0032] 41, magnetic attraction structure; 411, first magnetic attraction piece; 412, second magnetic attraction piece; 50, box body; 51, connecting beam; 61, tool. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below 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. The description of the 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 those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0034] As Figures 1 to 7As shown, the LED display module of the embodiment is installed on the connecting beam 51 of the cabinet 50. The LED display module 10 comprises a display module body 21 and a lock 31. The lock 31 comprises a lock seat 32, a lock core 33, a locking piece 34, an interference piece 35 and an elastic linkage. The lock seat 32 is arranged at the rear side of the display module body 21. The lock core 33 is rotatably arranged in the lock seat 32. The locking piece 34 is connected with the lock core 33 and rotates synchronously, and the locking piece 34 has a locking position for abutting against the rear side of the connecting beam 51 to lock the display module body 21 on the connecting beam 51, and an unlocking position for avoiding the connecting beam 51 to enable the display module body 21 to be separated from the cabinet 50. The interference piece 35 is rotatably sleeved on the lock core 33, and the interference piece 35 is arranged in the axial direction of the lock core 33 and spaced from the locking piece 34, and the interference piece 35 has an interference position for being located at the front side of the connecting beam 51 to lift the display module body 21, and an avoiding position for being arranged away from the connecting beam 51. The elastic linkage is arranged between the locking piece 34 and the interference piece 35; wherein when the locking piece 34 is in the unlocking position, the interference piece 35 is driven to the interference position by the elastic linkage; when the locking piece 34 rotates from the unlocking position to the locking position, the interference piece 35 rotates from the interference position to the avoiding position.

[0035] The locking member 34 is connected with the lock core 33 and rotates synchronously. The locking member 34 has a locking position for abutting against the rear side of the connecting beam 51 to lock the display module body 21 on the connecting beam 51, and an unlocking position for avoiding the connecting beam 51 to enable the display module body 21 to be separated from the box body 50. When operating from the front side of the LED display module 10, the tool 61 is used to drive the lock core 33 to rotate to lock the display module body 21 on the connecting beam 51 or separate the display module body 21 from the box body 50. When operating from the rear side of the LED display module 10, the locking member 34 is directly driven to rotate to lock the display module body 21 on the connecting beam 51 or separate the display module body 21 from the box body 50. The interference member 35 is rotatably sleeved on the lock core 33. The interference member 35 is arranged in the axial direction of the lock core 33 and spaced from the locking member 34. The interference member 35 has an interference position for being located at the front side of the connecting beam 51 to lift the display module body 21, and an avoiding position for being arranged away from the connecting beam 51. The elastic linkage member is arranged between the locking member 34 and the interference member 35 to enable the locking member 34 to drive the interference member 35 to switch between the interference position and the avoiding position by elastic force or linkage. When the locking member 34 is in the unlocking position, the interference member 35 is driven to the interference position by the elastic linkage member. When the locking member 34 rotates from the unlocking position to the locking position, the interference member 35 rotates from the interference position to the avoiding position. During the process of mounting the LED display module 10 of the LED display device on the box body 50, when the locking member 34 is in the unlocking position, the interference member 35 is located at the front side of the connecting beam 51 to lift the display module body 21 under the action of the elastic force of the elastic linkage member, so that the front surface of the LED display device is uneven, reminding the operator to drive the lock core 33 to lock the display module body 21 on the connecting beam 51 to avoid the phenomenon of missing locking. At this time, the lock core 33 is driven to rotate by the tool 61 or the locking member 34 is directly driven to rotate, so that the locking member 34 is in the locking position, and the interference member 35 rotates together with the locking member 34 under the linkage action of the elastic linkage member, and the interference member 35 can be in the avoiding position. At this time, there is no interference between the LED display module 10 and the box body 50. Since the interference member 35 is located at the avoiding position arranged away from the connecting beam 51, the LED display device can be fixed to the box body 50 and the front surface of the LED display device is flat. When the LED display module 10 needs to be removed from the box body 50, the lock core 33 or the locking member 34 is driven to switch the locking member 34 from the locking position to the unlocking position. At this time, the interference member 35 rotates from the avoiding position to the interference position. However, since the LED display module 10 has not been removed from the box body 50 at this time, the interference arm 352 abuts against the connecting beam 51 of the box body 50 under the action of the elastic linkage member.When the LED display module 10 is removed from the box 50, when the locking member 34 is moved forward by a distance, the side of the connecting beam 51 does not block the interference member 35, and the interference arm 352 is rotated to the front side of the connecting beam 51 under the elastic force of the elastic linkage member, so that the interference member 35 is in the interference position. Therefore, the technical scheme of the embodiment effectively solves the problem that the LED display module in the related art is easily locked when installed on the box through the lock.

[0036] It should be noted that the interference member 35 is in the avoiding position when it is in other positions except the interference position, and the process of rotating the interference member 35 from the interference position to the avoiding position can be realized by the linkage of the elastic linkage member to rotate the interference member 35 together with the locking member 34, or by artificial means. In this embodiment, the locking member 34 is in the shape of a handle, which facilitates the operator to directly operate from the rear side of the LED display module 10 to lock the display module body 21 on the connecting beam 51 or separate the display module body 21 from the box 50.

[0037] In the related art, since the LED display module is installed on the box through multiple magnetic attraction structures, due to impact, high temperature, magnetic field influence, long time aging and other reasons, the magnet has demagnetization hidden danger, which makes the LED display module have the risk of falling off the box.

[0038] In order to solve the above problems, as Figures 1 to 9As shown, the display module body 21 of the embodiment is installed on the connecting beam 51 through the plurality of magnetic structures 41. When the locking member 34 is in the unlocking position, the LED display module 10 is magnetically attracted to the cabinet 50. Under the action of the elastic linkage, the interference member 35 is in the interference position. Since the interference member 35 is located at the front side of the connecting beam 51 at this time, the LED display module 10 is lifted up, so that the front surface of the LED display device is uneven, prompting personnel to drive the lock cylinder 33 to lock the display module body 21 on the connecting beam 51, avoiding the occurrence of the locking omission phenomenon. At this time, the tool 61 is used to drive the lock cylinder 33 to rotate or directly drive the locking member 34 to rotate, so that the locking member 34 is in the locking position, and under the linkage action of the elastic linkage, the interference member 35 is in the avoiding position. At this time, the LED display module 10 is magnetically attracted to the cabinet 50. Since the interference member 35 is located in the avoiding position which is arranged away from the connecting beam 51, the LED display device can be magnetically attracted to the cabinet 50 and the front surface of the LED display device is flat. Since the locking member 34 can lock the display module body 21 on the connecting beam 51, when the magnetic attraction fails, the LED display module 10 will not fall off the cabinet 50, and since the interference member 35 is arranged, the locking omission phenomenon can be avoided. Therefore, the technical scheme of the embodiment effectively solves the problem that in the related art, when the LED display device uses the magnetic attraction structure to install the LED display module on the cabinet, the LED display module has the risk of falling off the cabinet.

[0039] As shown in the figure, Figures 5 to 12 The interference member 35 includes a rotating sleeve 351 sleeved outside the lock cylinder 33 and an interference arm 352 connected to the outer side wall of the rotating sleeve 351. The first end of the elastic linkage is connected to the locking member 34, and the second end of the elastic linkage is connected to the interference arm 352. The LED display module 10 of the LED display device is installed on the cabinet 50 using the magnetic attraction structure 41. When it is necessary to remove the LED display module 10 from the cabinet 50, the lock cylinder 33 or the locking member 34 is driven to switch the locking member 34 from the locking position to the unlocking position. At this time, the interference member 35 is rotated from the avoiding position to the interference position. However, since the LED display module 10 has not been removed from the cabinet 50 at this time, the interference arm 352 abuts against the connecting beam 51 of the cabinet 50 under the action of the elastic linkage. When the LED display module 10 is removed from the cabinet 50, the side surface of the connecting beam will not block the interference member 35 when the locking member moves forward a distance with the LED display module 10. Under the elastic force of the elastic linkage, the interference arm 352 is rotated to the front side of the connecting beam 51, so that the interference member 35 is in the interference position. When the LED display module 10 is magnetically attracted to the cabinet 50 again, the interference member 35 is in the interference position, which can lift up the LED display module 10, realize self-checking, play an insurance role, and avoid the occurrence of the locking omission phenomenon.

[0040] As shown in the figure, Figures 5 to 12As shown, the elastic linkage member includes a torsion spring 36, the end of the first torsion arm of the torsion spring 36 is inserted into the locking member 34, and the end of the second torsion arm of the torsion spring 36 is inserted into the interference arm 352. The torsion spring 36 enables the locking member 34 to generate a torsion force relative to the interference member 35, and facilitates the linkage cooperation between the locking member 34 and the interference member 35 when the locking member 34 rotates. Meanwhile, the torsion spring 36 occupies a smaller space at the back side of the LED display module 10, so that the LED display module 10 is more compact. Moreover, the torsion spring 36 can keep the position of the locking member 34 and the interference arm 352 relatively fixed without external force. To magnetically attract the LED display module 10 to the cabinet 50, the locking member 34 needs to be operated from the unlocking position to the locking position, and in the process of rotating the locking member 34 from the unlocking position to the locking position, the locking member 34 drives the torsion spring 36 to rotate and link the interference arm 352, the interference arm 352 rotates with the torsion spring 36, and the interference arm 352 can rotate from the interference position to the avoiding position, so that there is no interference between the LED display module 10 and the cabinet 50, and the LED display module 10 can be magnetically attracted to the cabinet 50.

[0041] In the present embodiment, the LED display module 10 of the LED display device is installed on the cabinet 50 using the magnetic attraction structure 41, and when it is needed to remove the LED display module 10 from the cabinet 50, the lock cylinder 33 or the locking member 34 is driven to switch the locking member 34 from the locking position to the unlocking position, and at this time, the interference member 35 rotates from the avoiding position to the interference position. However, since the LED display module 10 has not been removed from the cabinet 50 at this time, the interference arm 352 abuts against the connecting beam 51 of the cabinet 50 under the action of the torsion spring 36. When the LED display module 10 is removed from the cabinet 50, the interference arm 352 rotates to the front side of the connecting beam 51 under the continued action of the torsion force of the torsion spring 36, and the interference member 35 is kept in the interference position. When the LED display module 10 is magnetically attracted to the cabinet 50 again, the LED display module 10 can be lifted up due to the interference position of the interference member 35, so that the lock missing phenomenon is avoided. The locking member 34 has the positioning bead 324 for positioning cooperation, so that the locking member 34 will not be separated from the unlocking position under the action of the torsion force of the torsion spring 36.

[0042] As Figures 5 to 12As shown, the interference member 35 further comprises a first driving block 353 connected to the outer sidewall of the sleeve 351, and the first driving block 353 is spaced apart from the interference arm 352. The locking member 34 comprises a locking arm 342 and a second driving block 341 arranged on the side of the locking arm 342 facing the sleeve 351. The locking arm 342 has a locking position for locking the display module body 21 on the connecting beam 51 and an unlocking position for separating the display module body 21 from the cabinet 50. The interference arm 352 has a radial extension along the sleeve 351 which is greater than the radial extension of the first driving block 353 along the sleeve 351. Thus, when the interference member 35 rotates, the first driving block 353 will not be located on the front side of the connecting beam 51, so as not to affect the installation of the LED display module 10 on the cabinet 50.

[0043] In the present embodiment, the second driving block 341 and the first driving block 353 are drivingly matched, so that the driving force applied by the second driving block 341 to the first driving block 353 is greater than the torsional force applied by the torsion spring 36 to the interference arm 352. Thus, when the locking member 34 rotates from the unlocking position to the locking position, the locking member 34 can drive the interference member 35 to rotate from the interference position to the avoiding position. Thus, since the LED display module 10 is to be magnetically attracted to the cabinet 50, there is a large magnetic attraction force between the two. When the locking member 34 is switched from the unlocking position to the locking position, the second driving block 341 of the locking member 34 drives the first driving block 353 of the interference member 35 to rotate, which not only overcomes the magnetic attraction force, but also drives the torsion spring 36 to rotate around the lock core 33, so as to rotate the interference member 35. Thus, the interference member 35 can quickly rotate from the interference position to the avoiding position under the driving cooperation of the first driving block 353 and the second driving block 341.

[0044] In the present embodiment, the center line of the first driving block 353 and the center line of the interference arm 352 are arranged at 90° on the projection plane along the axis direction of the sleeve 351 of the interference member 35. Of course, in the embodiment not shown in the figure, the center line of the first driving block 353 and the center line of the interference arm 352 can also be arranged at 80°, 83°, 85°, 87°, 93° or 95°.

[0045] Specifically, the housing includes a frame and connecting beams connected inside the frame. The connecting beams include multiple horizontal beams and multiple vertical beams intersecting the horizontal beams. The horizontal beams are arranged at intervals from the first side to the second side of the frame, and the vertical beams are arranged at intervals from the third side to the fourth side of the frame. The first and second sides are parallel, the third side is perpendicular to the first side, and the third and fourth sides are parallel. Adjacent horizontal beams and adjacent vertical beams form a U-shaped perforated hole. The locking arm 342 is connected to the lock cylinder 33 by screws and rotates synchronously. The locking arm 342 has a locking position for locking the display module body 21 onto the horizontal beam and an unlocking position for separating the display module body 21 from the horizontal beam.

[0046] like Figure 3 , Figure 4 as well as Figures 10 to 12 As shown, the lock cylinder 33 includes a lock disc 331 rotatably mounted on the lock seat 32 and a core rod 332 passing through the lock disc 331. A front operating hole 333 is provided at the front of the core rod 332. When operated from the front of the LED display module 10, a tool 61 is inserted into the front operating hole 333 to drive the lock cylinder 33, causing the locking member 34 to rotate, thereby locking the display module body 21 onto the connecting beam 51 or separating the display module body 21 from the housing 50. The rear of the core rod 332 engages with the locking member 34 to prevent rotation, allowing the lock cylinder 33 to rotate simultaneously and at the same angle as the locking member 34.

[0047] In this embodiment, the display module body 21 is provided with a clearance hole corresponding to the front operation hole 333. A tool 61 is inserted into the front operation hole 333 through the clearance hole to drive the lock cylinder 33 to rotate. The display module body includes a rear shell and a light panel module disposed on the front side of the rear shell. The lock seat of the lock is disposed on the rear side of the rear shell. The clearance hole includes a first hole segment disposed on the light panel module and a second hole segment disposed on the rear shell. The first hole segment and the second hole end are connected. A tool 61 is inserted into the front operation hole 333 through the first hole segment and the second hole end to drive the lock cylinder 33 to rotate.

[0048] In the embodiment, the tool 61 is inserted into the front operation hole 333 through the lamp plate module on the display module body 21, the lock cylinder 33 is rotated by driving the tool 61, the locking member 34 is rotated by the lock cylinder 33 to make the locking arm 342 of the locking member 34 abut against the connecting beam 51 of the box body 50, the locking arm 342 of the locking member 34 is hooked on the connecting beam 51, the display module body 21 is installed on the box body 50, the display module body 21 will not fall off from the box body 50 after the magnet is disabled, and the function of insurance is achieved. Since the lockset 31 is driven by the tool 61 inserted into the front operation hole 333 to drive the lock cylinder 33, the display module body 21 can be locked on the connecting beam 51 or separated from the box body 50 by rotating the locking member 34 by a certain angle, so that the locking and unlocking operations can be achieved without exerting a large torsional force. In this way, the diameter of the tool 61 is correspondingly reduced, the locking and unlocking operations can be achieved by using a small-diameter tool 61, and the diameter of the avoiding hole on the display module body 21 can also be correspondingly reduced. It can be applied to the LED outdoor small-pitch display module body, so that even if the lamp pitch of the display module body is small, the avoiding hole can be arranged between the lamp pitches without affecting the display effect and appearance of the LED display module.

[0049] In the embodiment, the core rod 332 is coaxially arranged with the lock disc 331.

[0050] As shown in Figures 5 to 12 , the lock seat 32 is provided with a first limiting portion, the lock disc 331 is provided with a second limiting portion limiting matched with the first limiting portion, and the first limiting portion and the second limiting portion are limiting matched to limit the rotation range of the lock disc 331, so as to switch the locking member 34 between the unlocking position and the locking position. Limiting the rotation range of the lock disc 331 facilitates the locking operation and the unlocking operation of personnel. In the embodiment, the rotation range of the lock disc 331 is preferably 90°. Of course, in the embodiment not shown in the figure, the rotation range of the lock disc 331 can also be 80°, 83°, 85°, 87°, 93° or 95°.

[0051] As shown in Figures 5 to 12As shown, the first limiting part includes a limiting column 323, and the second limiting part includes a limiting hole 334, the limiting column 323 is arranged in the limiting hole 334, and the limiting hole 334 extends along the circumference of the lock disc 331. The limiting column 323 has a first limiting position and a second limiting position which are limited by the hole side walls of the two ends of the limiting hole 334 respectively. When the limiting column 323 is in the first limiting position, the locking piece 34 is in the unlocking position. When the limiting column 323 is in the second limiting position, the locking piece 34 is in the locking position. When it is needed to separate the display module body 21 from the box body 50, the lock core 33 is driven to make the locking piece 34 in the unlocking position, at this time, since the limiting column 323 is in the first limiting position, the lock core 33 cannot continue to rotate, so that the operator can know that the unlocking is successful, and the unlocking operation is convenient. When it is needed to lock the display module body 21 on the connecting beam 51, the lock core 33 is driven to make the locking piece 34 in the locking position, at this time, since the limiting column 323 is in the second limiting position, the lock core 33 cannot continue to rotate, so that the operator can know that the locking is successful, and the locking piece 34 can be in the locking position, so that the display module body 21 is more reliably locked on the connecting beam 51.

[0052] As shown, Figures 5 to 12 As shown, the lock 31 further includes a positioning bead 324, and a first positioning hole 335 and a second positioning hole 336 which are positioned with the positioning bead 324, and the positioning bead 324 is arranged on the lock seat 32. The positioning bead 324 includes a positioning cylinder arranged on the lock seat 32, a bead arranged at the opening of the positioning cylinder which faces the lock disc 331, and an elastic piece arranged between the bead and the positioning cylinder, the bead can be positioned with the first positioning hole 335 and the second positioning hole 336, the diameter of the positioning cylinder at the opening is smaller than the diameter of the bead, and more than half of the bead is located in the positioning cylinder. A part of the bead of the positioning bead 324 extends into the first positioning hole 335 or the second positioning hole 336 under the action of the elastic piece, so that the positioning bead 324 is positioned with the first positioning hole 335 or the second positioning hole 336. The first positioning hole 335 and the second positioning hole 336 are arranged at intervals on the lock disc 331, when the positioning bead 324 is positioned with the first positioning hole 335, the locking piece 34 is kept in the unlocking position, and when the positioning bead 324 is positioned with the second positioning hole 336, the locking piece 34 is kept in the locking position. When the locking piece 34 is between the locking position and the unlocking position, the bead of the positioning bead 324 abuts against the front surface of the lock disc 331. When the first positioning hole 335 of the lock disc 331 rotates to the position of the positioning bead 324, the bead of the positioning bead 324 is bounced up due to the elastic force of the elastic piece, so that the operator knows that the unlocking is successful through the sound and the hand feeling. When the second positioning hole 336 of the lock disc 331 rotates to the position of the positioning bead 324, the bead of the positioning bead 324 is bounced up due to the elastic force of the elastic piece, so that the operator knows that the locking is successful through the sound and the hand feeling.

[0053] When the interference arm 352 abuts against the connecting beam 51 of the box 50, the elastic force exerted by the elastic member of the positioning bead 324 on the lock disc 331 of the lock cylinder 33 to stop the rotation of the lock disc 331 is greater than the torsion force exerted by the torsion spring 36 on the locking member 34 to make the locking member 34 disengage from the locking position, so that the locking member 34 can be kept in the locking position when the interference arm 352 abuts against the connecting beam 51 of the box 50.

[0054] In the present embodiment, when the positioning bead 324 is positioned and matched with the first positioning hole 335, the limiting column 323 is in the first limiting position, and the locking member 34 is in the unlocking position; when the positioning bead 324 is positioned and matched with the second positioning hole 336, the limiting column 323 is in the second limiting position, and the locking member 34 is in the locking position. The positioning bead 324 is preferably a platform step spring positioning bead.

[0055] As shown in Figures 5 to 12 The lock seat 32 comprises a surrounding plate 321 and a mounting groove 322 arranged in the surrounding plate 321. The lock 31 further comprises a baffle 37 arranged on the opening of the mounting groove 322 and connected to the surrounding plate 321. The lock cylinder 33 comprises a lock disc 331 rotatably arranged between the mounting groove 322 and the baffle 37. The mounting groove 322 is arranged so that the lock disc 331 can be mounted in the lock seat 32, and the baffle 37 is arranged so that the lock disc 331 arranged between the mounting groove 322 and the baffle 37 cannot be taken out of the mounting groove 322. Thus, in the present embodiment, the lock seat 32 belongs to a part of the display module body 21, and in the embodiment not shown in the figure, the lock seat 32 and the display module body 21 are in a split structure, and the lock seat 32 is independently mounted on the LED display module 10.

[0056] As shown in Figures 1 to 9As shown, the display module body 21 is mounted on the connecting beam 51 through a plurality of magnetic structures 41, each magnetic structure 41 comprises a first magnetic element 411 and a second magnetic element 412 which are magnetically attracted, the first magnetic element 411 is arranged on the display module body 21, and the second magnetic element 412 is arranged on the connecting beam 51. The lock 31 is provided in plurality, at least one lock 31 is arranged adjacent to one of the plurality of magnetic structures 41, and the interference element 35 of the lock 31 is in the interference position, and the interference element 35 is located between the first magnetic element 411 and the second magnetic element 412 of the magnetic structure 41 adjacent thereto. In this way, when the display module body 21 is to be magnetically attracted to the connecting beam 51, the first magnetic element 411 which is not arranged adjacent to the lock 31 can be magnetically attracted to the corresponding second magnetic element 412 to magnetically attract the display module body 21 to the connecting beam 51. At this time, the locking element 34 is in the unlocked position, the interference element 35 is in the interference position, and the interference element 35 is located between the first magnetic element 411 and the second magnetic element 412 of the magnetic structure 41 adjacent thereto, which can lift the front side of the corresponding LED display device, so that the surface of the front side of the LED display device is protruded to prompt the operator that the lock 31 is not locked, which plays a warning role to avoid the phenomenon of missing locking, and further enables the locking element 34 to be in the locked position, so that the display module body 21 is more reliably mounted on the connecting beam 51. Preferably, the first magnetic element 411 and the second magnetic element 412 are both magnets, or the first magnetic element 411 is a magnet and the second magnetic element 412 is a ferrous element.

[0057] In the embodiment, as shown in Figure 5 and Figure 6 Each display module body 21 is provided with eight first magnetic elements 411, each side of the two opposite sides of the display module body 21 is provided with three first magnetic elements 411, and each side of the other two opposite sides is provided with one first magnetic element 411. The connecting beam 51 corresponding to the display module body 21 is provided with a second magnetic element 412 corresponding to each first magnetic element 411 and magnetically attracted. Each display module body 21 is provided with two locks 31, and the two locks 31 are arranged on the two sides of the display module body 21 provided with one first magnetic element 411. In this way, when the display module body 21 is to be magnetically attracted to the connecting beam 51, the locking element 34 is in the unlocked position, and the interference element 35 is in the interference position and located between the first magnetic element 411 and the second magnetic element 412 of the magnetic structure 41 adjacent thereto. Therefore, the position of the two sides of the display module body 21 provided with one first magnetic element 411 is lifted due to the interference of the interference element 35, so that the surface of the front side of the LED display device is protruded to prompt the operator that the lock 31 is not locked, which plays a warning role to avoid the phenomenon of missing locking, and further enables the locking element 34 to be in the locked position, so that the display module body 21 is more reliably mounted on the connecting beam 51.

[0058] As Figures 1 to 4 shown, according to another aspect of the present application, there is provided an LED display device. The LED display device comprises a cabinet 50 and an LED display module 10, the display module body 21 is installed on the connecting beam 51 of the cabinet 50, and the LED display module is the above-mentioned LED display module. Since the above-mentioned LED display module can solve the problem that the LED display module in the related art is prone to missing locking when being installed on the cabinet through a lock, the LED display device with the LED display module can also solve the same technical problem.

[0059] In the description of the present application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0060] In addition, it should be noted that the use of "first", "second" and the like to limit parts only facilitates the differentiation of corresponding parts, and if there is no further declaration, the above words have no special meaning, therefore cannot be understood as a limitation on the scope of protection of the present application.

[0061] 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. An LED display module, installed on a connecting beam (51) of a cabinet (50), characterized in that, The LED display module (10) comprises a display module body (21) and a lock (31), wherein the lock (31) comprises: a lock seat (32) arranged at the rear side of the display module body (21); a lock cylinder (33) rotatably arranged in the lock seat (32); a locking member (34) connected with the lock cylinder (33) and synchronously rotated, the locking member (34) having a locking position for abutting against the rear side of the connecting beam (51) to lock the display module body (21) on the connecting beam (51), and an unlocking position for avoiding the connecting beam (51) to enable the display module body (21) to be separated from the cabinet (50); an interference member (35) rotatably sleeved on the lock cylinder (33), and the interference member (35) is arranged in the axial direction of the lock cylinder (33) and spaced from the locking member (34), the interference member (35) having an interference position for being located at the front side of the connecting beam (51) to lift the display module body (21), and an avoiding position for being arranged away from the connecting beam (51); an elastic linkage member arranged between the locking member (34) and the interference member (35); wherein, when the locking member (34) is in the unlocking position, the interference member (35) is driven to the interference position by the elastic linkage member; when the locking member (34) is rotated from the unlocking position to the locking position, the interference member (35) is rotated from the interference position to the avoiding position.

2. The LED display module of claim 1, wherein, The interference member (35) comprises a rotating sleeve (351) sleeved outside the lock cylinder (33) and an interference arm (352) connected to the outer side wall of the rotating sleeve (351), a first end of the elastic linkage member is connected to the locking member (34), and a second end of the elastic linkage member is connected to the interference arm (352). 3.The LED display module of claim 2, wherein, The elastic linkage member comprises a torsion spring (36), an end of a first torsion arm of the torsion spring (36) is inserted into the locking member (34), and an end of a second torsion arm of the torsion spring (36) is inserted into the interference arm (352). 4.The LED display module of claim 2, wherein, The interference member (35) further comprises a first driving block (353) connected to the outer side wall of the rotating sleeve (351), the first driving block (353) is arranged in space with the interference arm (352), the locking member (34) comprises a locking arm (342) and a second driving block (341) arranged on the side of the locking arm (342) facing the rotating sleeve (351), the interference arm (352) extends along the radial direction of the rotating sleeve (351) by a dimension greater than that of the first driving block (353) extending along the radial direction of the rotating sleeve (351), and the second driving block (341) and the first driving block (353) are drivingly matched, so that when the locking member (34) is rotated from the unlocking position to the locking position, the interference member (35) can be driven to rotate from the interference position to the avoiding position.

5. The LED display module according to any one of claims 1 to 4, characterized in that, The lock core (33) comprises a lock disc (331) rotatably arranged at the lock seat (32) and a core rod (332) penetrating the lock disc (331), a front operating hole (333) is arranged at the front part of the core rod (332), and the rear part of the core rod (332) is rotationally matched with the locking piece (34).

6. The LED display module of claim 5, wherein, A first limiting part is arranged on the lock seat (32), a second limiting part is arranged on the lock disc (331) and is matched with the first limiting part, and the first limiting part and the second limiting part are matched to limit the rotation range of the lock disc (331), so that the locking piece (34) is switched between the unlocking position and the locking position.

7. The LED display module of claim 6, wherein, The first limiting part comprises a limiting column (323), the second limiting part comprises a limiting hole (334), the limiting column (323) penetrates the limiting hole (334), the limiting hole (334) extends along the circumference of the lock disc (331), the limiting column (323) has a first limiting position and a second limiting position matched with the hole side walls at both ends of the limiting hole (334), respectively, when the limiting column (323) is at the first limiting position, the locking piece (34) is at the unlocking position, and when the limiting column (323) is at the second limiting position, the locking piece (34) is at the locking position. 8.The LED display module of claim 5, wherein, The lock (31) further comprises a positioning bead (324), a first positioning hole (335) and a second positioning hole (336) matched with the positioning bead (324), the positioning bead (324) is arranged on the lock seat (32), the first positioning hole (335) and the second positioning hole (336) are arranged on the lock disc (331) at intervals, when the positioning bead (324) is matched with the first positioning hole (335), the locking piece (34) is kept at the unlocking position, and when the positioning bead (324) is matched with the second positioning hole (336), the locking piece (34) is kept at the locking position.

9. The LED display module according to any one of claims 1 to 4, wherein The display module body (21) is mounted on the connecting beam (51) through a plurality of magnetic structures (41), each magnetic structure (41) comprises a first magnetic element (411) and a second magnetic element (412) matched in magnetism, the first magnetic element (411) is arranged on the display module body (21), and the second magnetic element (412) is arranged on the connecting beam (51), The lock (31) is arranged adjacent to one of the plurality of magnetic structures (41), and when the interference piece (35) of the lock (31) is at the interference position, the interference piece (35) is located between the first magnetic element (411) and the second magnetic element (412) of the magnetic structure (41) adjacent thereto.

10. An LED display device, comprising a cabinet (50) and an LED display module, wherein the display module body (21) is installed on a connecting beam (51) of the cabinet (50), characterized in that, The LED display module is the LED display module according to any one of claims 1 to 9.

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