Adjustable splicing assembly and LED display device

Abstract

The utility model provides an adjustable splicing assembly and an LED display device, and the adjustable splicing assembly comprises a first adjustable part which comprises a first cylinder seat, a rotary cylinder, an adjustable hook and an eccentric gear shaft. An avoiding through hole allowing the eccentric gear shaft to penetrate through is formed in the adjustable hook, a first rack and a second rack are arranged on the two opposite side walls of the avoiding through hole respectively, and the eccentric gear shaft is located between the first rack and the second rack; when the eccentric gear shaft is meshed and matched with the first rack, the adjustable hook is driven to move towards a first direction relative to the rotary cylinder so as to enable the adjustable hook to be in a push-away state, and when the eccentric gear shaft is meshed and matched with the second rack, the adjustable hook is driven to move towards a second direction relative to the rotary cylinder so as to enable the adjustable hook to be in a pull-close state; and the second adjustable part comprises a second cylinder seat and an adjustable pin which is movably arranged in the second cylinder seat. According to the technical scheme, the problem that the flatness of an LED display device in the related technology is poor is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to an adjustable splicing component and an LED display device. Background Art

[0002] As a product with multiple display units spliced ​​together, LED display devices have a gap between the two frames of two adjacent display units due to the tolerances that are inevitably generated during the production and assembly process. Specifically, when the gap is too large, dark lines will appear on the LED display device; when the gap is too small, bright lines will appear on the LED display device. Therefore, when the gap is too large or too small, software debugging cannot significantly improve the display problem caused by dark and bright lines, resulting in poor display effect of the LED display device.

[0003] In order to solve the above technical problems, after the two frames in the related technology are spliced ​​through the plug-in blocks and the slots, the first adjusting screw and the second adjusting screw are driven to rotate simultaneously by rotating the connecting assembly, so that the two adjacent frames can be driven to be relatively closer or farther away through the fixed plate, thereby realizing an adjustable gap between the two frames.

[0004] However, the above structure can only adjust the gap between the two frames, but cannot adjust the height difference between two adjacent display units, so that the flatness of the LED display device is poor. Utility Model Content

[0005] The main purpose of the utility model is to provide an adjustable splicing component and an LED display device to solve the problem of poor flatness of the LED display device in the related art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, an adjustable splicing assembly is provided, comprising: a first adjustable component, comprising a first cylinder seat, a rotating cylinder rotatably arranged in the first cylinder seat, an adjustable hook movably inserted into the rotating cylinder and an eccentric gear shaft rotatably arranged on the rotating cylinder, the adjustable hook is provided with an avoidance through hole for the eccentric gear shaft to pass through, and the first rack and the second rack are respectively provided on the two opposite side walls of the avoidance through hole, and the eccentric gear shaft is located between the first rack and the second rack; wherein, when the rotating cylinder rotates around the axis of the first cylinder seat, the adjustable hook and the eccentric gear shaft are driven to rotate together, so that the adjustable hook has a hooking position and a disengaging position, and when the eccentric gear shaft is meshed with the first rack, the adjustable hook is driven to move relative to the rotating cylinder in a first direction, so that the adjustable hook It has a pushed-away state, and when the eccentric gear shaft is meshed with the second rack, the adjustable hook is driven to move in the second direction relative to the rotating cylinder, so that the adjustable hook has a pulled-in state, wherein the second direction is opposite to the first direction and both are located on an axis perpendicular to the first cylinder seat; the second adjustable component includes a second cylinder seat and an adjustable pin movably arranged in the second cylinder seat, and the adjustable pin is provided with an annular groove that can cooperate with the adjustable hook; wherein, when the hook head of the adjustable hook leaves the annular groove, the adjustable hook is in an unhooked position, and when the hook head of the adjustable hook is located in the annular groove, the adjustable hook is in a hooked position; when the adjustable hook is in the hooked position, when the adjustable hook is in the pushed-away state, the distance between the first cylinder seat and the second cylinder seat gradually increases, and when the adjustable hook is in the pulled-in state, the distance between the first cylinder seat and the second cylinder seat gradually decreases.

[0007] Further, the circumference of the root circle of the eccentric gear of the eccentric gear shaft is greater than the first distance between the tooth tops of the first rack and the tooth tops of the second rack, and the circumference of the root circle of the eccentric gear of the eccentric gear shaft is less than the second distance between the tooth roots of the first rack and the tooth roots of the second rack.

[0008] Furthermore, a connecting hole for the axle of the eccentric gear shaft to pass through is provided on the rotating cylinder, and the connecting hole includes a first hole section, a second hole section and a third hole section which are connected in sequence from the outside to the inside of the rotating cylinder, the first hole section is a first operating hole, the axle of the eccentric gear shaft is threadedly connected to the third hole section, and a second operating hole is provided at the end of the axle of the eccentric gear shaft corresponding to the first operating hole.

[0009] Furthermore, the diameter of the first hole segment is larger than the diameter of the third hole segment, the second hole segment is a tapered hole, the wheel shaft of the eccentric gear shaft is provided with an external thread, and the third hole segment is provided with an internal thread connected to the external thread. When the eccentric gear shaft is meshed with the first rack or the second rack, the external thread can extend into the tapered hole under the action of the connection between the external thread and the internal thread.

[0010] Furthermore, the first cylinder seat includes a seat body and a cylinder body inserted into the seat body, the rotating cylinder is arranged in the cylinder body, the seat body is provided with a first avoidance gap, the cylinder body is provided with a second avoidance gap connected to the first avoidance gap, and the first avoidance gap and the second avoidance gap avoid adjustable hooks.

[0011] Furthermore, a slot is provided on the seat body, an insert block which is plugged into the slot is provided on the cylinder body, and a tightening piece is movably provided on the seat body, and the tightening piece can be matched with the side wall of the cylinder body.

[0012] Furthermore, the adjustable splicing assembly also includes a locking pin which is movably inserted into the side wall of the first cylinder seat, and a first locking hole and a second locking hole are arranged at intervals on the side wall of the rotating cylinder, and the axis of the second locking hole is perpendicular to the axis of the first locking hole. The locking pin has an avoidance position for avoiding the rotation of the rotating cylinder and a locking position for inserting into the first locking hole or the second locking hole. When the locking pin is inserted into the first locking hole, the adjustable hook remains in the unhooked position, and when the locking pin is inserted into the second locking hole, the adjustable hook remains in the hooked position.

[0013] Furthermore, a mounting frame is provided on the side wall of the first cartridge seat, an operating pin is rotatably penetrated through the mounting frame, the operating pin is threadedly connected to the locking pin, a stopper is provided at one end of the locking pin away from the first cartridge seat, and the adjustable splicing assembly also includes an elastic member arranged between the stopper and the side wall of the first cartridge seat, the elastic member applies an elastic force to the stopper in a direction away from the side wall of the first cartridge seat.

[0014] Furthermore, the mounting frame includes two support plates spaced apart on the side wall of the first cartridge seat and a connecting plate connected to the two support plates, the locking pin is located between the two support plates, the operating pin is passed through the connecting plate, and a third operating hole is provided at one end of the operating pin away from the first cartridge seat.

[0015] According to another aspect of the utility model, an LED display device is provided, comprising a plurality of display units, each display unit comprising a frame and an LED display module arranged on the front side of the frame, and two frames of two adjacent display units are connected by an adjustable splicing assembly, and the adjustable splicing assembly is the above-mentioned adjustable splicing assembly.

[0016] The technical solution of the utility model is applied, and the adjustable splicing assembly includes: a first adjustable component and a second adjustable component. The first adjustable component includes a first cylinder seat, a rotating cylinder rotatably arranged in the first cylinder seat, an adjustable hook movably inserted into the rotating cylinder, and an eccentric gear shaft rotatably arranged on the rotating cylinder. The adjustable hook is provided with an avoidance through hole for the eccentric gear shaft to pass through, and the first rack and the second rack are respectively provided on the two opposite side walls of the avoidance through hole, and the eccentric gear shaft is located between the first rack and the second rack. When the rotating drum rotates around the axis of the first drum seat, the adjustable hook and the eccentric gear shaft are driven to rotate together, so that the adjustable hook has a hooking position and a disengaging position. When the eccentric gear shaft is meshed with the first rack, the adjustable hook is driven to move relative to the rotating drum in the first direction, so that the adjustable hook has a pushed-away state. When the eccentric gear shaft is meshed with the second rack, the adjustable hook is driven to move relative to the rotating drum in the second direction, so that the adjustable hook has a pulled-in state, wherein the second direction is opposite to the first direction and both are located on the axis perpendicular to the first drum seat. The second adjustable component includes a second drum seat and an adjustable pin movably arranged in the second drum seat, and the adjustable pin is provided with a ring groove capable of cooperating with the adjustable hook. The first adjustable component of the adjustable splicing assembly can be installed on one of the two frames of two adjacent display units, and the second adjustable component of the adjustable splicing assembly can be installed on the other of the two frames of two adjacent display units. When the on-site personnel operate the rotary drum to rotate, when the hook head of the adjustable hook leaves the annular groove, the adjustable hook is in the unhooking position, and when the hook head of the adjustable hook is in the annular groove, the adjustable hook is in the hooking position. When the adjustable hook is in the hooking position, when the on-site personnel operate the eccentric gear shaft to rotate, when the adjustable hook is in the pushed-away state, the distance between the first cylinder seat and the second cylinder seat gradually increases, which can increase the distance between the first adjustable component and the second adjustable component along the axis direction perpendicular to the first cylinder seat, and when the adjustable hook is in the pulled-in state, the distance between the first cylinder seat and the second cylinder seat gradually decreases, which can reduce the distance between the first adjustable component and the second adjustable component along the axis direction perpendicular to the first cylinder seat, thereby adjusting the gap size between the two frames of the two adjacent display units. The meshing cooperation of the eccentric gear shaft with the first rack and the second rack, respectively, has the characteristics of smooth, accurate and reliable transmission, which can improve the accuracy of adjusting the gap size and improve the adjustment effect. Furthermore, when the adjustable pin moves, the groove wall of the annular groove on the adjustable pin pushes the adjustable hook to move along the axis direction of the adjustable pin to adjust the distance between the first adjustable component and the second adjustable component, thereby being able to adjust the height difference between the two frames of two adjacent display units, and improving the flatness of the LED display device. Therefore, the technical solution of the present application effectively solves the problem of poor flatness of the LED display device in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 A partial front view schematic diagram of an embodiment of an LED display device according to the utility model is shown;

[0019] Figure 2 Shows Figure 1 A schematic cross-sectional view of an adjustable splicing assembly in the AA direction of an LED display device;

[0020] Figure 3 Shows Figure 2 A schematic cross-sectional view of a first adjustable component of an adjustable splicing assembly;

[0021] Figure 4 Shows Figure 2 A schematic diagram of an exploded structure of a first adjustable component of an adjustable splicing assembly;

[0022] Figure 5 Shows Figure 2 A partial perspective schematic diagram of the locking pin of the adjustable splicing assembly when it is in a locked position;

[0023] Figure 6 Shows Figure 2 A partial perspective schematic diagram of an adjustable splicing assembly with a locking pin in an avoidance position.

[0024] The above drawings include the following reference numerals:

[0025] 10. First adjustable component; 11. First cylinder seat; 111. Seat body; 112. Cylinder body; 113. First avoidance gap; 114. Second avoidance gap; 115. Slot; 116. Insert block; 117. Tightening member; 12. Rotating cylinder; 121. First hole section; 122. Second hole section; 123. Third hole section; 124. First locking hole; 125. Second locking hole; 13. Adjustable hook; 131. Avoidance through hole; 14. Eccentric gear shaft; 141. Tooth root circle; 142. Second operating hole; 143. External thread; 15. First rack; 16. Second rack; 17. Mounting frame; 171. Support plate; 172. Connecting plate;

[0026] 20. second adjustable component; 21. second cartridge seat; 22. adjustable pin; 221. annular groove;

[0027] 31. Locking pin; 32. Operating pin; 321. Third operating hole; 33. Stopper; 34. Elastic member;

[0028] N1, first direction; N2, second direction; L1, first distance; L2, second distance;

[0029] 40. LED display device; 41. Frame. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] like Figures 1 to 6 As shown, the present application provides an adjustable splicing assembly, and an embodiment of the adjustable splicing assembly includes: a first adjustable component 10 and a second adjustable component 20. The first adjustable component 10 includes a first cylinder seat 11, a rotating cylinder 12 rotatably arranged in the first cylinder seat 11, an adjustable hook 13 movably penetrated on the rotating cylinder 12, and an eccentric gear shaft 14 rotatably arranged on the rotating cylinder 12. The adjustable hook 13 is provided with an avoidance through hole 131 for the eccentric gear shaft 14 to pass through, and the first rack 15 and the second rack 16 are respectively provided on the two opposite side walls of the avoidance through hole 131, and the eccentric gear shaft 14 is located between the first rack 15 and the second rack 16. When the rotary drum 12 rotates around the axis of the first drum seat 11, the adjustable hook 13 and the eccentric gear shaft 14 are driven to rotate together, so that the adjustable hook 13 has a hooking position and an unhooking position. When the eccentric gear shaft 14 is meshed with the first rack 15, the adjustable hook 13 is driven to move relative to the rotary drum 12 in the first direction N1, so that the adjustable hook 13 has a pushed-away state. When the eccentric gear shaft 14 is meshed with the second rack 16, the adjustable hook 13 is driven to move relative to the rotary drum 12 in the second direction N2, so that the adjustable hook 13 has a pulled-in state, wherein the second direction N2 is opposite to the first direction N1 and both are located on the axis perpendicular to the first drum seat 11. The second adjustable component 20 includes a second drum seat 21 and an adjustable pin 22 movably disposed in the second drum seat 21, and the adjustable pin 22 is provided with an annular groove 221 capable of cooperating with the adjustable hook 13. When the hook head of the adjustable hook 13 leaves the annular groove 221, the adjustable hook 13 is in the unhooking position, and when the hook head of the adjustable hook 13 is in the annular groove 221, the adjustable hook 13 is in the hooking position. When the adjustable hook 13 is in the hooking position, when the adjustable hook 13 is in the pushed-away state, the distance between the first cartridge seat 11 and the second cartridge seat 21 gradually increases, and when the adjustable hook 13 is in the pulled-in state, the distance between the first cartridge seat 11 and the second cartridge seat 21 gradually decreases.

[0032] By applying the technical solution of this embodiment, the first adjustable component 10 of the adjustable splicing assembly can be installed on one of the two frames of two adjacent display units, and the second adjustable component 20 of the adjustable splicing assembly can be installed on the other of the two frames of two adjacent display units. When the on-site personnel operate the rotating drum 12 to rotate, when the hook head of the adjustable hook 13 leaves the annular groove 221, the adjustable hook 13 is in the unhooked position, and when the hook head of the adjustable hook 13 is located in the annular groove 221, the adjustable hook 13 is in the hooked position. When the adjustable hook 13 is in the hooked position, when the on-site personnel operate the eccentric gear shaft 14 to rotate, when the adjustable hook 13 is in the pushed-away state, the distance between the first cylinder seat 11 and the second cylinder seat 21 gradually increases, which can increase the first adjustable component 10 along the axial direction perpendicular to the first cylinder seat 11 ( Figure 1 When the adjustable hook 13 is in the pulled-in state, the distance between the first cartridge seat 11 and the second cartridge seat 21 gradually decreases, which can reduce the first adjustable component 10 along the axial direction perpendicular to the first cartridge seat 11 ( Figure 1 The distance between the second adjustable component 20 and the second adjustable component 20 can be adjusted to adjust the gap between the two frames of the two adjacent display units. The meshing of the eccentric gear shaft 14 with the first rack 15 and the second rack 16 has the characteristics of smooth, accurate and reliable transmission, which can improve the accuracy of adjusting the gap size and improve the adjustment effect. In addition, when the adjustable pin 22 moves, the groove wall of the annular groove 221 on the adjustable pin 22 pushes the adjustable hook 13 along the axial direction of the adjustable pin 22 ( Figure 2 The first adjustable component 10 and the second adjustable component 20 are moved in the direction of the front and rear arrows in the figure to adjust the distance between them, thereby adjusting the height difference between the two frames of two adjacent display units, and improving the flatness of the LED display device. Therefore, the technical solution of this embodiment effectively solves the problem of poor flatness of the LED display device in the related art.

[0033] In this embodiment, when the rotary drum 12 rotates around the axis of the first drum seat 11, the adjustable hook 13 is driven to rotate 90 degrees from the hooking position to the unhooking position; or when the rotary drum 12 rotates around the axis of the first drum seat 11, the adjustable hook 13 is driven to rotate 90 degrees from the unhooking position to the hooking position. The adjustable pin 22 is connected to the second drum seat 21 through a threaded structure, and the end of the adjustable pin 22 is provided with a fourth operating hole that cooperates with an operating tool used by on-site personnel.

[0034] like Figures 1 to 3As shown, the circumference of the tooth root circle 141 of the eccentric gear of the eccentric gear shaft 14 is greater than the first distance L1 between the tooth top of the first rack 15 and the tooth top of the second rack 16, and the circumference of the tooth root circle 141 of the eccentric gear of the eccentric gear shaft 14 is less than the second distance L2 between the tooth root of the first rack 15 and the tooth root of the second rack 16. In this way, the space in the avoidance through hole 131 can be reasonably utilized, which is convenient for installing the eccentric gear shaft 14 and arranging the first rack 15 and the second rack 16 on the side wall of the avoidance through hole 131. Moreover, the above-mentioned size relationship can make the on-site personnel operate the eccentric gear shaft 14 to rotate less than one circle, which can remind the on-site personnel to avoid continuing to operate the eccentric gear shaft 14 and prevent the distance between the first cylinder seat 11 and the second cylinder seat 21 from being adjusted too small or too large.

[0035] like Figures 1 to 3 As shown, the rotary cylinder 12 is provided with a connecting hole for the axle of the eccentric gear shaft 14 to pass through, and the connecting hole includes a first hole section 121, a second hole section 122 and a third hole section 123 which are sequentially connected from the outside to the inside of the rotary cylinder 12, the first hole section 121 is a first operating hole, the axle of the eccentric gear shaft 14 is threadedly connected with the third hole section 123, and the end of the axle of the eccentric gear shaft 14 corresponding to the first operating hole is provided with a second operating hole 142. The threaded connection between the axle of the eccentric gear shaft 14 and the third hole section 123 can utilize the self-locking function of the thread. After the eccentric gear shaft 14 rotates a certain angle, under the self-locking function of the thread, the position of the eccentric gear shaft 14 in the third hole section 123 no longer rotates, thereby improving the stability of the eccentric gear shaft 14 driving the adjustable hook 13 to be in a pulled-in state or a pushed-out state. The first operating hole is provided to facilitate the on-site personnel to insert the operating tool into the first operating hole to rotate the rotary drum 12, and also facilitate the operating tool to be inserted into the second operating hole 142 to rotate the eccentric gear shaft 14. The above-mentioned operating tool is preferably a hexagonal wrench, and the first operating hole and the second operating hole 142 are respectively hexagonal holes that cooperate with the hexagonal wrench.

[0036] like Figures 1 to 3 As shown, the diameter of the first hole section 121 is larger than the diameter of the third hole section 123, the second hole section 122 is a tapered hole, the wheel shaft of the eccentric gear shaft 14 is provided with an external thread 143, and the third hole section 123 is provided with an internal thread connected to the external thread 143. When the eccentric gear shaft 14 is meshed with the first rack 15 or the second rack 16, the external thread 143 can be inserted into the tapered hole under the action of the connection between the external thread 143 and the internal thread. In this way, the setting of the tapered hole makes it easier for on-site personnel to observe the depth of the external thread 143 inserted into the tapered hole, so as to judge the distance of the adjustable hook 13 being pulled closer or pushed away, and further improve the accuracy of adjusting the gap size.

[0037] like Figures 1 to 6As shown, in order to facilitate the disassembly and maintenance of the rotating drum 12 and the eccentric gear shaft 14, the first drum seat 11 includes a seat body 111 and a drum body 112 inserted with the seat body 111, and the rotating drum 12 is arranged in the drum body 112. In this way, the rotating drum 12 is easy to be disassembled from the seat body 111. In addition, in order to prevent the adjustable hook 13 from interfering with the seat body 111 and the drum body 112 during the rotation process between the hooking position and the unhooking position, a first avoidance gap 113 is provided on the seat body 111, and a second avoidance gap 114 connected to the first avoidance gap 113 is provided on the drum body 112, and the first avoidance gap 113 and the second avoidance gap 114 avoid the adjustable hook 13.

[0038] like Figures 1 to 6 As shown, the seat body 111 is provided with a slot 115, and the cylinder body 112 is provided with an insert block 116 that is inserted into the slot 115. This facilitates the disassembly and assembly of the cylinder body 112 and the seat body 111. The seat body 111 is movably provided with a tightening member 117, and the tightening member 117 can be abutted against the side wall of the cylinder body 112. In this way, when the tightening member 117 abuts against the side wall of the cylinder body 112, the cylinder body 112 is fixed on the seat body 111, and when the tightening member 117 is loosened, the cylinder body 112 can be disassembled from the seat body 111.

[0039] like Figures 3 to 6 As shown, in order to improve the stability of the adjustable hook 13 in the unhooking position or the hooking position, the adjustable splicing assembly further includes a locking pin 31 movably penetrated on the side wall of the first cylinder seat 11, and a first locking hole 124 and a second locking hole 125 are arranged at intervals on the side wall of the rotary cylinder 12. The axis of the second locking hole 125 is perpendicular to the axis of the first locking hole 124, and the locking pin 31 has an avoidance position to avoid the rotation of the rotary cylinder 12 and a locking position inserted into the first locking hole 124 or the second locking hole 125. When the locking pin 31 is inserted into the first locking hole 124, the adjustable hook 13 is kept in the unhooking position, and when the locking pin 31 is inserted into the second locking hole 125, the adjustable hook 13 is kept in the hooking position.

[0040] like Figures 2 to 4As shown, a mounting frame 17 is provided on the side wall of the first cartridge seat 11, and an operating pin 32 is rotatably penetrated on the mounting frame 17. The operating pin 32 is threadedly connected with the locking pin 31, and a stopper 33 is provided at one end of the locking pin 31 away from the first cartridge seat 11. The adjustable splicing assembly also includes an elastic member 34 provided between the stopper 33 and the side wall of the first cartridge seat 11, and the elastic member 34 applies an elastic force in the direction away from the side wall of the first cartridge seat 11 to the stopper 33. Among them, the elastic force of the elastic member 34 is greater than the friction force of the threaded connection between the operating pin 32 and the locking pin 31. In this way, when the operating pin 32 rotates, under the joint action of the elastic force of the elastic member 34 and the threaded connection between the operating pin 32 and the locking pin 31, the operating pin 32 and the locking pin 31 rotate relative to each other, so that the locking pin 31 moves along the axis of the operating pin 32, thereby enabling the locking pin 31 to move between the avoidance position and the locking position. The elastic member 34 is preferably a spring. The stopper 33 is preferably a stop convex ring.

[0041] like Figures 2 to 4 As shown, the mounting frame 17 includes two support plates 171 spaced apart on the side wall of the first cartridge seat 11 and a connecting plate 172 connected to the two support plates 171, the locking pin 31 is located between the two support plates 171, and the operating pin 32 is penetrated on the connecting plate 172. In this way, the mounting frame 17 can support the operating pin 32. The end of the operating pin 32 away from the first cartridge seat 11 is provided with a third operating hole 321. On-site personnel can use an operating tool to insert into the third operating hole 321 and rotate the operating pin 32. The operating tool is preferably a hexagonal wrench, and the third operating hole 321 is preferably an inner hexagonal hole that cooperates with the hexagonal wrench.

[0042] The present application also provides an LED display device, such as Figures 1 to 3 The embodiment of the LED display device 40 shown includes a plurality of display units, each display unit includes a frame 41 and an LED display module arranged in front of the frame 41, and two frames 41 of two adjacent display units are connected by an adjustable splicing component, and the adjustable splicing component is the above-mentioned adjustable splicing component. Since the above-mentioned adjustable splicing component can solve the problem of poor flatness of the LED display device in the related art, the LED display device including the adjustable splicing component can solve the same technical problem.

[0043] The LED display module of the LED display device 40 is assembled by the iron sheet on the LED display module and the magnet on the frame 41, i.e., magnetic attraction, and the edge of the LED display module is fitted with the frame 41 to achieve flatness. The splicing of the two frames 41 of two adjacent display units includes an upper frame and a lower frame (abbreviated as "upper and lower frames" below) arranged up and down. The upper frame and the lower frame are respectively assembled on the frame of the LED display device 40, and the upper frame and the lower frame are fixed to the frame with bolts, and the upper and lower frames are preliminarily aligned. Therefore, the adjustable splicing assembly only needs to be adjusted when the upper and lower frames are uneven. After the synchronization and preliminary alignment, the frame 41 is pre-tightened with bolts. After the upper and lower frames are assembled, if it is found that the upper and lower frames are too tight and need to be pushed away, the adjustable hook 13 can be put into the pushed away state according to the operating steps of the adjustable splicing assembly; after the upper and lower frames are assembled, if it is found that the gap between the upper and lower frames is too large and needs to be brought closer, the adjustable hook 13 can be put into the brought closer state according to the operating steps of the adjustable splicing assembly; when the upper and lower frames are assembled, if it is found that the surfaces of the upper and lower LED display modules are uneven (that is, when there is a height difference), the groove wall of the annular groove 221 on the adjustable pin 22 can push the adjustable hook 13 to move along the axial direction of the adjustable pin 22 to adjust the distance between the first adjustable component 10 and the second adjustable component 20 according to the operating steps of the adjustable splicing assembly when the adjustable pin 22 moves to adjust the distance between the first adjustable component 10 and the second adjustable component 20; the functions of bringing the upper frame closer, pushing away and adjusting the height difference between the lower frame can be achieved through the assembly of the upper and lower frames and the adjustable splicing assembly.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0046] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An adjustable splicing assembly, characterized in that: include: A first adjustable component (10) comprises a first cylinder seat (11), a rotary cylinder (12) rotatably arranged in the first cylinder seat (11), an adjustable hook (13) movably inserted into the rotary cylinder (12), and an eccentric gear shaft (14) rotatably arranged on the rotary cylinder (12), wherein the adjustable hook (13) is provided with an escape hole (131) for the eccentric gear shaft (14) to pass through, and a first rack (15) and a second rack (16) are respectively arranged on two opposite side walls of the escape hole (131), and the eccentric gear shaft (14) is located between the first rack (15) and the second rack (16); When the rotating cylinder (12) rotates around the axis of the first cylinder seat (11), the adjustable hook (13) and the eccentric gear shaft (14) are driven to rotate together, so that the adjustable hook (13) has a hooking position and a disengaging position; when the eccentric gear shaft (14) is meshed with the first rack (15), the adjustable hook (13) is driven to move relative to the rotating cylinder (12) in a first direction (N1), so that the adjustable hook (13) has a pushed-away state; when the eccentric gear shaft (14) is meshed with the second rack (16), the adjustable hook (13) is driven to move relative to the rotating cylinder (12) in a second direction (N2), so that the adjustable hook (13) has a pulled-in state; wherein the second direction (N2) is opposite to the first direction (N1) and both are located on an axis perpendicular to the first cylinder seat (11); A second adjustable component (20) comprises a second cartridge seat (21) and an adjustable pin (22) movably arranged in the second cartridge seat (21), wherein the adjustable pin (22) is provided with a ring groove (221) capable of cooperating with the adjustable hook (13); When the hook head of the adjustable hook (13) leaves the annular groove (221), the adjustable hook (13) is in the unhooking position, and when the hook head of the adjustable hook (13) is located in the annular groove (221), the adjustable hook (13) is in the hooking position; when the adjustable hook (13) is in the hooking position, when the adjustable hook (13) is in the pushed-away state, the distance between the first cartridge seat (11) and the second cartridge seat (21) gradually increases, and when the adjustable hook (13) is in the pulled-in state, the distance between the first cartridge seat (11) and the second cartridge seat (21) gradually decreases.

2. The adjustable splicing assembly according to claim 1, characterized in that: The circumference of the tooth root circle (141) of the eccentric gear of the eccentric gear shaft (14) is greater than the first distance (L1) between the tooth top of the first rack (15) and the tooth top of the second rack (16), and the circumference of the tooth root circle (141) of the eccentric gear of the eccentric gear shaft (14) is less than the second distance (L2) between the tooth root of the first rack (15) and the tooth root of the second rack (16).

3. The adjustable splicing assembly according to claim 1, characterized in that: The rotary cylinder (12) is provided with a connecting hole for the axle of the eccentric gear shaft (14) to pass through, and the connecting hole comprises a first hole section (121), a second hole section (122) and a third hole section (123) which are sequentially connected from the outside to the inside of the rotary cylinder (12), the first hole section (121) being a first operating hole, the axle of the eccentric gear shaft (14) being threadedly connected to the third hole section (123), and a second operating hole (142) being provided at one end of the axle of the eccentric gear shaft (14) corresponding to the first operating hole.

4. The adjustable splicing assembly according to claim 3, characterized in that: The diameter of the first hole section (121) is greater than the diameter of the third hole section (123); the second hole section (122) is a tapered hole; the wheel shaft of the eccentric gear shaft (14) is provided with an external thread (143); the third hole section (123) is provided with an internal thread connected to the external thread (143); when the eccentric gear shaft (14) is meshed with the first rack (15) or the second rack (16), the external thread (143) can extend into the tapered hole under the action of the connection between the external thread (143) and the internal thread.

5. The adjustable splicing assembly according to claim 1, characterized in that: The first cylinder seat (11) comprises a seat body (111) and a cylinder body (112) inserted into the seat body (111); the rotary cylinder (12) is arranged in the cylinder body (112); the seat body (111) is provided with a first avoidance notch (113); the cylinder body (112) is provided with a second avoidance notch (114) connected with the first avoidance notch (113); the first avoidance notch (113) and the second avoidance notch (114) avoid the adjustable hook (13).

6. The adjustable splicing assembly according to claim 5, characterized in that: The seat body (111) is provided with a slot (115), the cylinder body (112) is provided with an insert block (116) inserted into the slot (115), and the seat body (111) is movably provided with a tightening piece (117), and the tightening piece (117) can be abutted against the side wall of the cylinder body (112).

7. The adjustable splicing assembly according to claim 1, characterized in that: The adjustable splicing assembly further comprises a locking pin (31) movably penetrated through the side wall of the first cylinder seat (11); a first locking hole (124) and a second locking hole (125) are arranged on the side wall of the rotating cylinder (12) at intervals; the axis of the second locking hole (125) is perpendicular to the axis of the first locking hole (124); the locking pin (31) has an avoidance position for avoiding the rotation of the rotating cylinder (12) and a locking position for inserting into the first locking hole (124) or the second locking hole (125); when the locking pin (31) is inserted into the first locking hole (124), the adjustable hook (13) is maintained at the unhooking position; when the locking pin (31) is inserted into the second locking hole (125), the adjustable hook (13) is maintained at the hooking position.

8. The adjustable splicing assembly according to claim 7, characterized in that: A mounting frame (17) is arranged on the side wall of the first cartridge seat (11), an operating pin (32) is rotatably penetrated on the mounting frame (17), the operating pin (32) is threadedly connected to the locking pin (31), a stopper (33) is arranged at one end of the locking pin (31) away from the first cartridge seat (11), and the adjustable splicing assembly further comprises an elastic member (34) arranged between the stopper (33) and the side wall of the first cartridge seat (11), the elastic member (34) applies an elastic force to the stopper (33) in a direction away from the side wall of the first cartridge seat (11).

9. The adjustable splicing assembly according to claim 8, characterized in that: The mounting frame (17) comprises two support plates (171) spaced apart on the side wall of the first cartridge seat (11) and a connecting plate (172) connected to the two support plates (171); the locking pin (31) is located between the two support plates (171); the operating pin (32) is passed through the connecting plate (172); and a third operating hole (321) is provided at one end of the operating pin (32) away from the first cartridge seat (11).

10. An LED display device, comprising a plurality of display units, each of the display units comprising a frame (41) and an LED display module arranged in front of the frame (41), two frames (41) of two adjacent display units being connected by an adjustable splicing component, characterized in that: The adjustable splicing assembly is the adjustable splicing assembly according to any one of claims 1 to 9.

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