LED splicing screen

Abstract

A light-emitting diode (LED) spliced screen belongs to the technical field of spliced screens and comprises a plurality of display units, corners of adjacent display units are detachably connected together through a group of locksets, side edges of adjacent display units are in butt joint and positioned through positioning pins and positioning holes, each lockset comprises a connecting box and a plurality of elastic lock seats, and the elastic lock seats are arranged on the connecting boxes. An elastic lock seat is fixedly installed at each corner of the back face of the display unit, a plurality of elastic lock rods are arranged in the connecting box in a sliding mode, and the connecting box is detachably connected with the elastic lock seats at the corners of the display unit on the peripheral side of the connecting box through the elastic lock rods. The number of locks used is greatly reduced, connection can be achieved by only needing one connecting box to be matched with the elastic lock seats at the corners of the display units, only one elastic lock rod connected with the corresponding display unit needs to be dismantled during disassembly and assembly, the disassembly and assembly frequency is effectively reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of splicing screens, in particular to an LED splicing screen. Background Art

[0002] The LED splicing screen is a large display screen composed of multiple LED display units. Each display unit can independently display images or text. By splicing, a larger display area can be achieved. In traditional LED splicing screens, the connection between two adjacent LED display units is fixed by threaded connection of bolts and nuts, which makes it inconvenient to disassemble and assemble the whole.

[0003] In order to improve the convenience of splicing LED display units, a quick-detachable LED splicing screen (publication number CN109584729A) has now appeared, which includes a first display screen, a second display screen lock body and an elastic lock seat. The first display screen has a first side edge, and the second display screen has a second side edge. The lock body is arranged on the first side edge of the first display screen, and the elastic lock seat is arranged on the second side edge of the second display screen. The lock body and the elastic lock seat are locked together, so that the first display screen and the second display screen are spliced ​​and fixed. When the elastic lock seat does not lock the lock body, the first display screen and the second display screen can be disassembled.

[0004] In the existing quick-detachable LED splicing screen, the lock body and the lock seat are set on the side of the display unit. When the number of display units to be spliced ​​is too large, a large number of lock bodies and lock seats are used, resulting in a large number of display unit assembly and disassembly times, affecting efficiency. For example, when four display units are assembled, two sets of locks are required to connect one display unit and the two display units at its right angles, and a single display unit is assembled and disassembled twice. Utility Model Content

[0005] In order to solve the technical problem in the above background technology that the display units of the existing quick-detachable LED splicing screen have to be assembled and disassembled many times, which affects the assembly efficiency, the present utility model provides an LED splicing screen.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides an LED splicing screen, comprising a plurality of display units, wherein the corners of adjacent display units are detachably connected together by a group of locks, and the sides of adjacent display units are positioned by docking with positioning pins and positioning holes, and the lock comprises a connection box and a plurality of elastic lock seats, and an elastic lock seat is fixedly installed at each corner on the back of the display unit, and a plurality of elastic locking rods are slidingly provided in the connection box, and the connection box is detachably connected to the elastic lock seats at the corners of the display units on its surrounding sides by the elastic locking rods. By connecting the corners, the number of locks used is greatly reduced, the number of disassembly and assembly times is reduced, and work efficiency is improved.

[0008] Preferably, the display unit includes a rectangular module, the front of the rectangular module is magnetically connected to the LED light board, and the back corners of the rectangular module are detachably mounted with elastic lock seats for detachable connection between adjacent rectangular modules.

[0009] Preferably, a first mounting groove is provided at each corner on the back of the rectangular module, and the depth of the first mounting groove is the same as the thickness of the connection box. The first mounting grooves at the corners of adjacent display units are combined to form an installation space. The connection box is arranged in the installation space to ensure that the surface of the connection box is flush with the surface of the rectangular module, thereby improving its aesthetics. At the same time, the position of the connection box is limited to ensure the installation stability of the connection box, thereby ensuring the splicing strength and stability of the splicing screen, and meeting the use requirements of ultra-thin rectangular modules without increasing the overall thickness of the rectangular module.

[0010] Preferably, a second mounting groove is provided near each corner on the back of the rectangular module, the elastic lock seat is installed in the second mounting groove, a baffle is provided between the first mounting groove and the adjacent second mounting groove, a first through hole is provided on the baffle, and the elastic locking rod passes through the first through hole and is connected to the elastic lock seat to realize the connection between the rectangular module and the connection box, and then realize the connection between the two adjacent rectangular modules.

[0011] Preferably, the connection box is a rectangular box-shaped structure, and a second through hole is respectively opened on the four side walls of the connection box. The elastic locking rod is slidably arranged in the second through hole to guide the elastic locking rod for connection.

[0012] Preferably, a second threaded hole is further provided on the four side walls of the connecting box, the second threaded hole is perpendicular to and connected to the adjacent second through hole, a screw is installed in the second threaded hole, the elastic locking rod includes a locking rod, a second spring for resetting is provided on the locking rod, a limiting groove is provided on the rod body of the locking rod, the limiting groove extends along the axial direction of the locking rod, and the screw is extended into the limiting groove to limit the axial movement distance of the elastic locking rod by the screw to prevent the elastic locking rod from slipping out.

[0013] Preferably, a slot is provided at one end of the locking rod extending outward from the connection box along its circumferential direction, and a card plate is provided in the elastic lock seat, one end of the card plate is used to be clamped in the slot to achieve a quick connection between the locking rod and the elastic lock seat.

[0014] Preferably, the elastic lock seat includes a seat body, a cover plate is detachably mounted on the seat body, lock holes are provided on the cover plate and the seat body and are coaxially arranged, the seat body is fixedly mounted at the back corner of the display unit, the card plate is slidably arranged in the seat body, a first spring is provided in the seat body, the first spring abuts against the card plate, thereby ensuring the automatic connection between the card plate and the elastic lock seat.

[0015] Preferably, one end of the card plate is located in the base body, and the other end of the card plate extends outward from the base body. The end of the card plate located in the base body is an arc-shaped end and is clamped in the slot of the locking rod. The end of the card plate extending outward from the base body is a bent structure, which is convenient for manually pulling the card plate to complete the quick unlocking work.

[0016] Preferably, a plurality of positioning pins and positioning holes are provided on the side walls of the display unit, and the positioning pins and the positioning holes are arranged opposite to each other, so that two adjacent display units can be fitted together through the positioning pins and the positioning holes, thereby improving assembly and positioning efficiency.

[0017] It can be seen from the above technical solutions that the advantages of the present invention are:

[0018] 1. The connection box is detachably connected to the elastic lock seat at the corner of the display unit on its side through the elastic locking rod. The combined structure of the connection box and the elastic locking rod and the corner connection method greatly reduces the number of locks used. Only one connection box is required to cooperate with the elastic lock seat at the corner of the display unit to achieve connection. When disassembling, only the elastic locking rod connected to the corresponding display unit needs to be removed, which effectively reduces the number of disassembly and assembly times and improves work efficiency.

[0019] 2. The first mounting grooves at the corners of adjacent display units are combined to form an installation space. The connection box is set in the installation space to ensure that the surface of the connection box is flush with the surface of the rectangular module, thereby improving its aesthetics. At the same time, the position of the connection box is limited to ensure the installation stability of the connection box, thereby ensuring the splicing strength and stability of the splicing screen, and meeting the use requirements of ultra-thin rectangular modules without increasing the overall thickness of the rectangular module.

[0020] 3. One end of the card plate is located in the base body, and the other end of the card plate extends outward from the base body. The end of the card plate located in the base body is an arc-shaped end, and is clamped in the slot of the lock rod. The end of the card plate extending outward from the base body is a bent structure, which is convenient for manually pulling the card plate. By pulling the card plate, the elastic lock rod can be quickly unlocked, which is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of splicing an LED splicing screen according to one or more embodiments of the present invention;

[0023] Figure 2This is a schematic diagram of the connection structure between the display unit and the lock according to one or more embodiments of the present invention;

[0024] Figure 3 This is a schematic structural diagram of a lock according to one or more embodiments of the present invention;

[0025] Figure 4 This is a schematic diagram of an exploded structure of a connection box according to one or more embodiments of the present invention;

[0026] Figure 5 This is a schematic diagram of the exploded structure of the elastic lock seat according to one or more embodiments of the present invention;

[0027] Figure 6 This is a schematic structural diagram of a lock according to one or more embodiments of the present invention;

[0028] The components represented by the reference numerals in the figure are:

[0029] 1. Rectangular module; 11. Positioning pin; 12. Positioning hole; 13. First mounting slot; 14. First through hole; 15. Second mounting slot; 2. LED light board; 3. Lock; 31. Connection box; 311. First threaded hole; 312. Second through hole; 313. Second threaded hole; 32. Elastic lock seat; 321. Cover; 3211. Third through hole; 322. Base; 3221. Third threaded hole; 323. First spring; 324. Card plate; 325. Lock hole; 33. Elastic locking rod; 331. Second spring; 332. Lock rod; 3321. Card slot; 3322. Block; 3323. Limiting slot; 34. Box cover; 341. Fourth through hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0031] In a typical embodiment of the present invention, Figures 1-6 As shown, an LED splicing screen is proposed, comprising: a plurality of display units and locks 3, wherein the corners of adjacent display units are detachably connected together by a group of locks 3.

[0032] This embodiment is described by taking four display units as an example. Figure 1As shown, the four display units are arranged in a field shape, and the corners of adjacent display units are detachably connected together by a set of locks 3. At the same time, the sides of adjacent display units are connected and positioned by the positioning pins 11 and the positioning holes 12. The corner connection method greatly reduces the number of locks 3 used, reduces the number of disassembly and assembly times, and improves work efficiency. For example, in this embodiment, to remove a display unit, only one locking rod 332 at the corner needs to be removed, and the number of disassembly times is one. The side-mounted lock method (display units are arranged in a field shape) Figure 1 Arrangement), the removal of one display unit requires the removal of the locks on both sides, and the number of disassembly is two. The connection method of this embodiment greatly reduces the number of disassembly.

[0033] like Figure 2 As shown, the display unit includes a rectangular module 1 and an LED light board 2. The front of the rectangular module 1 is magnetically connected to the LED light board 2 through a magnetic structure. The LED light board 2 is provided with a dot matrix arranged LED light source. A circuit board is provided at the back of the LED light source. A lock 3 is installed at the back corner of the rectangular module 1.

[0034] like Figure 2 and Figure 3 As shown, the lock 3 includes a connecting box 31, an elastic lock seat 32 and an elastic locking rod 33. The elastic lock seat 32 is installed at the back corner of the rectangular module 1 by bolt connection. There are four elastic locking rods 33, and the four elastic locking rods 33 are arranged crosswise. The four elastic locking rods 33 are slidably set in the connecting box 31, and one end of the elastic locking rod 33 extends outward from the connecting box 31. The protruding end of the elastic locking rod 33 is used to be inserted into the elastic lock seat 32. The connecting box 31 is fixedly connected to the elastic lock seat 32 through the elastic locking rod 33, so that multiple adjacent display units are fixedly connected together through multiple elastic locking rods 33.

[0035] Since the four display units in this embodiment are arranged in a field shape, four elastic locking rods 33 are provided in the connection box 31 in this embodiment, and the four elastic locking rods 33 are arranged in a cross shape, that is, there is an angle of 90° between two adjacent elastic locking rods 33, so as to be connected to the corners of a corresponding display unit respectively.

[0036] In order to improve the assembly efficiency, the side wall of the rectangular module 1 is provided with a positioning pin 11 and a positioning hole 12. Figure 1 As shown, the positioning pins 11 and the positioning holes 12 are respectively arranged on two opposite side walls, that is, the positioning pins 11 and the positioning holes 12 are arranged opposite to each other, so that two adjacent display units can be plug-fitted through the positioning pins 11 and the positioning holes 12.

[0037] like Figure 1 、 Figure 2As shown, a first mounting groove 13 is provided at each corner on the back of the rectangular module 1. The first mounting groove 13 is a right-angled triangle groove structure. The depth of the first mounting groove 13 is the same as the thickness of the connection box 31. The four first mounting grooves 13 at the four corners of the four adjacent display units are combined to form a rectangular installation space for the installation of the connection box 31, ensuring that the surface of the connection box 31 is flush with the surface of the rectangular module 1, improving its aesthetics, and at the same time limiting the position of the connection box 31 to ensure the installation stability of the connection box 31, thereby ensuring the splicing strength and stability of the splicing screen.

[0038] The provision of the first mounting groove 13 not only ensures aesthetics, but also meets the use requirements of the ultra-thin rectangular module 1 without increasing the overall thickness of the rectangular module 1 .

[0039] The back of the rectangular module 1 is also provided with a plurality of second mounting grooves 15. The number of the second mounting grooves 15 is the same as the number of the first mounting grooves 13 and corresponds one to one, that is, a second mounting groove 15 is provided near each corner on the back of the rectangular module 1. The second mounting groove 15 is used for installing the elastic lock seat 32. The second mounting groove 15 is provided with a plurality of bolt holes for installing bolts. There is a baffle between the first mounting groove 13 and the adjacent second mounting groove 15. The baffle is provided with a first through hole 14. One end of the elastic locking rod 33 passes through the first through hole 14 and is connected to the elastic lock seat 32. The first through hole 14 serves as a guide and positioning.

[0040] like Figure 4 As shown, the connection box 31 is an open rectangular box-shaped structure, and a box cover 34 is detachably installed at the opening of the connection box 31. A first threaded hole 311 is provided at the center position of the connection box 31, and a fourth through hole 341 is provided at the center position of the box cover 34. The box cover 34 is detachably connected to the connection box 31 by bolt connection; a second through hole 312 is respectively provided on the four side walls of the connection box 31 for the extension of the elastic locking rod 33, and a second threaded hole 313 is also provided on the four side walls of the connection box 31. The axis of the second threaded hole 313 is perpendicular to and connected to the axis of the adjacent second through hole 312, and a screw is installed in the second threaded hole 313 to limit the axial movement distance of the elastic locking rod 33 by the screw to prevent the elastic locking rod 33 from slipping out.

[0041] like Figure 6 As shown, the elastic locking rod 33 includes a locking rod 332 and a second spring 331. A stopper 3322 is fixed to one end of the locking rod 332 located in the connecting box 31. The second spring 331 is sleeved on the locking rod 332. One end of the second spring 331 abuts against the stopper 3322, and the other end of the second spring 331 abuts against the inner wall of the connecting box 31 to achieve the self-resetting effect of the locking rod 332. The outer diameter of the second spring 331 is larger than the second through hole 312 to prevent the second spring 331 from extending outward from the second through hole 312.

[0042] The locking rod 332 extends outward from one end of the connecting box 31 and is provided with a card slot 3321 along its circumferential direction for cooperating with the card plate 324 in the elastic lock seat 32 to realize the card connection and positioning of the locking rod 332. A limiting groove 3323 is provided on the rod body of the locking rod 332 near the corresponding second threaded hole 313. The limiting groove 3323 extends along the axial direction of the locking rod 332, and one end of the screw in the second threaded hole 313 extends into the limiting groove 3323 to limit the axial movement distance of the locking rod 332 and prevent the locking rod 332 from slipping out.

[0043] It can be understood that the block 3322 can also prevent the locking rod 332 from sliding out. The cooperation between the screw and the limiting groove 3323 can not only prevent the locking rod 332 from sliding out, but also prevent the locking rod 332 from sliding completely into the connection box 31.

[0044] like Figure 5 As shown, the elastic lock seat 32 includes a cover plate 321, a seat body 322, a first spring 323, a clamping plate 324 and a locking hole 325. The seat body 322 is fixedly installed in the second mounting groove 15 of the rectangular module 1 by bolts. A seat body 322 is installed in each second mounting groove 15. The clamping plate 324 is slidably set in the seat body 322. The first spring 323 is fixedly installed in the seat body 322 and abuts against the clamping plate 324, so that the clamping plate 324 has self-resetting ability. The cover plate 321 is detachably installed on the seat body 322 to cover the clamping plate 324. The cover plate 321 and the seat body 322 are both provided with locking holes 325 and are coaxially arranged for the elastic locking rod 33 to be inserted into the seat body 322.

[0045] Specifically, a plurality of third through holes 3211 are opened on the cover plate 321, and a plurality of third threaded holes 3221 are opened on the base body 322. The number of the third threaded holes 3221 and the third through holes 3211 are the same and correspond one to one, so as to be used for the installation of bolts, thereby realizing a detachable connection between the cover plate 321 and the base body 322.

[0046] One end of the card plate 324 is located in the base body 322, and the other end of the card plate 324 extends outward from the base body 322. The end of the card plate 324 located in the base body 322 is an arc-shaped end, which contains an arc-shaped slot for being inserted into the card slot 3321 of the locking rod 322, thereby limiting the axial movement of the locking rod 322. The end of the card plate 324 extending outward from the base body 322 is a bent structure for limiting the movement of the card plate 324, preventing the card plate 324 from sliding completely into the base body 322, and at the same time facilitating manual pulling of the card plate 324 to complete quick unlocking.

[0047] The specific working principle is:

[0048] The locking plate 324 is engaged with the locking groove 3322 on the locking rod 332 under the action of the first spring 323 to limit the axial movement of the locking rod 332. When all the elastic locking rods 33 are connected to the corresponding display units, the splicing and fixation of all the display units are completed, and the box cover 34 is fixed to the connection box 31 by bolts.

[0049] When the display unit needs to be removed, the card plate 324 only needs to be pulled, and the locking rod 332 will be reset under the action of the second spring 331 to complete the removal of the corresponding display unit. The installation and removal process is simple and fast.

[0050] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An LED splicing screen, comprising: A plurality of display units are characterized in that the corners of adjacent display units are detachably connected together by a set of locks (3), the sides of adjacent display units are positioned by docking with positioning pins (11) and positioning holes (12), the locks (3) include a connection box (31) and a plurality of elastic lock seats (32), each corner of the back of the display unit is fixedly mounted with an elastic lock seat (32), a plurality of elastic lock rods (33) are slidably provided in the connection box (31), and the connection box (31) is detachably connected to the elastic lock seats (32) at the corners of the display units on its surrounding side through the elastic lock rods (33).

2. The LED splicing screen according to claim 1, characterized in that: The display unit comprises a rectangular module (1), the front of the rectangular module (1) is magnetically connected to an LED light board (2), and a resilient lock seat (32) is detachably mounted at a corner of the back of the rectangular module (1).

3. The LED splicing screen according to claim 2, characterized in that: A first mounting groove (13) is provided at each corner of the back of the rectangular module (1); the depth of the first mounting groove (13) is the same as the thickness of the connection box (31); the first mounting grooves (13) at the corners of adjacent display units are combined to form an installation space; the connection box (31) is arranged in the installation space.

4. The LED splicing screen according to claim 3, characterized in that: A second mounting groove (15) is provided near each corner of the back of the rectangular module (1), and the elastic lock seat (32) is installed in the second mounting groove (15). A baffle is provided between the first mounting groove (13) and the adjacent second mounting groove (15), and a first through hole (14) is provided on the baffle. The elastic lock rod (33) passes through the first through hole (14) and is connected to the elastic lock seat (32).

5. The LED splicing screen according to claim 1, characterized in that: The connection box (31) is a rectangular box-shaped structure. A second through hole (312) is respectively provided on the four side walls of the connection box (31), and the elastic locking rod (33) is slidably arranged in the second through hole (312).

6. The LED splicing screen according to claim 5, characterized in that: The four side walls of the connection box (31) are further provided with second threaded holes (313), the second threaded holes (313) being perpendicular to and in communication with the adjacent second through holes (312), a screw being installed in the second threaded holes (313), the elastic locking rod (33) comprising a locking rod (332), a second spring (331) for resetting being sleeved on the locking rod (332), a limiting groove (3323) being provided on the rod body of the locking rod (332), the limiting groove (3323) extending along the axial direction of the locking rod (332), and the screw extending into the limiting groove (3323).

7. The LED splicing screen according to claim 6, characterized in that: One end of the locking rod (332) extending outward from the connection box (31) is provided with a slot (3321) along its circumferential direction, and a clamping plate (324) is provided in the elastic lock seat (32), and one end of the clamping plate (324) is used for clamping in the slot (3321).

8. The LED splicing screen according to claim 7, characterized in that: The elastic lock seat (32) includes a seat body (322), a cover plate (321) is detachably mounted on the seat body (322), a lock hole (325) is provided on the cover plate (321) and the seat body (322) and is coaxially arranged, the seat body (322) is fixedly mounted at a corner of the back of the display unit, a card plate (324) is slidably arranged in the seat body (322), a first spring (323) is provided in the seat body (322), and the first spring (323) is in contact with the card plate (324).

9. The LED splicing screen according to claim 8, characterized in that: One end of the card plate (324) is located in the base (322), and the other end of the card plate (324) extends outward from the base (322). The end of the card plate (324) located in the base (322) is an arc-shaped end and is clamped in the card slot (3321) of the locking rod (332). The end of the card plate (324) extending outward from the base (322) is a bent structure.

10. The LED splicing screen according to claim 1, characterized in that: A plurality of positioning pins (11) and positioning holes (12) are provided on the side wall of the display unit, and the positioning pins (11) and the positioning holes (12) are arranged opposite to each other.

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