Connecting assembly and LED display device with same

Abstract

The utility model provides a connecting assembly and a light-emitting diode (LED) display device with the connecting assembly, the connecting assembly comprises a first spring bolt piece, a second spring bolt piece, a third spring bolt piece and a fourth spring bolt piece, the first spring bolt piece is connected to the rear side of a first LED box body, and the first spring bolt piece comprises a spring bolt body and a stop piece; the connecting piece comprises a connecting base plate, a first connecting through hole is formed in the connecting base plate, and the first spring bolt piece can penetrate through the first connecting through hole; the first locking piece is movably arranged on the connecting base plate, when the first locking piece is located at the locking position, the first locking piece is located on the front side of the stopping piece so as to limit the first spring bolt piece to be forwards separated from the first connecting through hole, and when the first locking piece is located at the unlocking position, the first locking piece is separated from the stopping piece; the retaining part is arranged on the connecting base plate, and the retaining part can be matched with the first locking part so that the first locking part can be kept at the locking position and / or the unlocking position. According to the technical scheme, the problem that in the prior art, the operation of assembling and disassembling the LED box on the vertical frame is complex can be effectively solved.

Description

Technical Field

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

[0002] With the continuous development of science and technology, LED display devices are becoming more and more diversified and can adapt to more and more occasions. For example, in the application scenario of indoor advertising, LED display devices are composed of multiple LED display units, thereby forming a larger display surface to realize the function of playing advertisements, making the advertising content more eye-catching. In this field, LED display units are usually composed of LED display modules and LED boxes. The LED display module is located at the front side of the LED box, and the LED lamp beads on the LED display module face the viewer. Some control components of the LED display unit are arranged in the LED box.

[0003] Generally, the LED display unit needs to be mounted on a stand or on a wall. For example, when mounted on a stand, the staff sets a first connection piece on the rear side of the LED box and a second connection piece on the stand. The first connection piece and the second connection piece are locked by screws to mount the LED display unit on the stand. However, whether installing or removing the LED display unit, the staff needs to perform the screw tightening operation for many times, which makes the staff's operation more complicated, thereby reducing the staff's work efficiency. Therefore, there is a technical problem in the art that the operation of mounting and dismounting the LED box on the stand is more complicated. Utility Model Content

[0004] The main purpose of the utility model is to provide a connection assembly and an LED display device having the same, so as to solve the problem in the related art that the operation of loading and unloading an LED box on a stand is relatively complicated.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a connection assembly is provided, which is connected between a first LED box and a stand, and includes: a first locking tongue member, which is connected to the rear side of the first LED box, and the first locking tongue member includes a locking tongue body and a stop member arranged at the rear end of the locking tongue body; a connecting member, which is connected to the stand, and the connecting member includes a connecting substrate, and a first connecting through hole is arranged on the connecting substrate, and the first locking tongue member can pass through the first connecting through hole so that the stop member is located on the rear side of the connecting substrate; a first locking member, which is movably arranged on the connecting substrate, and the first locking member has a locking position and an unlocking position, when the first locking member is in the locking position, the first locking member is located in the front side of the stop member to limit the first locking tongue member from disengaging from the first connecting through hole forward, and when the first locking member is in the unlocking position, the first locking member is separated from the stop member; a retaining member, which is arranged on the connecting substrate, and the retaining member can cooperate with the first locking member to keep the first locking member in the locking position and / or the unlocking position.

[0006] Furthermore, the connecting component also includes a cover body, and the rear side of the cover body and the connecting substrate forms a receiving space, the first locking member and the retaining member are arranged in the receiving space, and the retaining member includes a compression spring, the first end of the compression spring is abutted against the first locking member, and the second end of the compression spring is abutted against the side wall of the cover body.

[0007] Furthermore, the first locking member includes a movable plate and a metal baffle plate arranged on the movable plate, the first end of the compression spring is in abutment with the movable plate, and the metal baffle plate can be in stoppering cooperation with the stopper.

[0008] Furthermore, the connection assembly also includes a rear operating part, the cover body has an escape opening, and the rear operating part is arranged outside the accommodating space and connected to the movable plate through the escape opening.

[0009] Furthermore, the connecting assembly also includes a guide groove extending along a preset direction and a guide rib cooperating with the guide groove, one of the guide groove and the guide rib is arranged on the movable plate, and the other of the guide groove and the guide rib is arranged on the cover body.

[0010] Furthermore, a notch structure is provided on the connecting substrate and penetrates the connecting substrate along the front-to-rear direction of the connecting substrate. The connecting component also includes a first front operating part, which is connected to the movable plate, and at least part of the first front operating part is exposed from the notch structure.

[0011] Furthermore, the connecting component is also connected between a second LED box and a stand adjacent to the first LED box, the connecting component also includes a second locking tongue piece and a second locking piece, a second connecting through hole spaced apart in a lateral direction from the first connecting through hole is also provided on the connecting substrate, the second locking tongue piece is connected to the rear side of the second LED box, the second locking tongue piece can pass through the second connecting through hole, and the second locking piece is movably provided on the connecting substrate and can cooperate with the second locking tongue piece to lock or unlock.

[0012] Furthermore, the notch structure is arranged between the first connecting through hole and the second connecting through hole, and the connecting assembly also includes a second front operating part connected to the second locking member, at least part of the second front operating part is exposed from the notch structure, and the second front operating part and the first front operating part are staggered in the extension direction of the notch structure.

[0013] Furthermore, the connecting component also includes a limiting cylinder arranged on the rear side of the connecting substrate, the limiting cylinder is arranged at the first connecting through hole, the limiting cylinder has a limiting hole, the rear end of the first locking tongue member is passed through the limiting hole, and the limiting hole can cooperate with the outer wall guide of the stop member; and / or, a positioning structure is arranged between the first locking tongue member and the connecting substrate.

[0014] According to another aspect of the utility model, an LED display device is provided, including a stand, a first LED box and a connecting assembly. The first LED box is connected to the stand via the connecting assembly, and the connecting assembly is the above-mentioned connecting assembly.

[0015] By applying the technical solution of the utility model, the first locking tongue piece is installed on the rear side of the first LED box, the stopper is arranged at the rear end of the locking tongue body, the connecting piece is connected to the stand, and a first connecting through hole is arranged on the connecting substrate. When installing the first LED box, the staff makes the first locking tongue piece pass through the first connecting through hole and makes the stopper be located on the rear side of the connecting substrate, and then makes the first locking piece be located in the locking position, the first locking piece is located on the front side of the stopper, the first locking piece cooperates with the stopper to limit the first locking tongue piece from disengaging forward from the first connecting through hole, and the retaining piece cooperates with the first locking piece to keep the first locking piece in the locking position, so that the first LED box will not be disengaged from the connecting piece; when it is necessary to disassemble the first LED box, the staff can control the first locking piece so that the first locking piece is located in the unlocking position, the first locking piece is separated from the stopper, and then makes the first locking tongue piece disengage forward from the first connecting through hole, so as to realize the disassembly of the first LED box. Compared with the method of installing the LED box on the stand by screws in the related art, in the present application, the staff only needs to switch the first locking member between the locking position and the unlocking position to achieve the loading and unloading of the first LED box, which simplifies the operation of the staff and improves the work efficiency of the staff. Therefore, the technical solution of the present application can effectively solve the problem of the relatively complicated operation of loading and unloading the LED box on the stand in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a connection assembly according to the utility model is shown;

[0018] Figure 2 Shows Figure 1 A schematic diagram of the split structure of the connection components;

[0019] Figure 3 Shows Figure 1 A schematic diagram of a three-dimensional structure of a connection component from another angle;

[0020] Figure 4 Shows Figure 1 A schematic front view of a connection assembly;

[0021] Figure 5 Shows Figure 1 A schematic diagram of the three-dimensional structure of the cover body of the connecting component.

[0022] The above drawings include the following reference numerals:

[0023] 1. The first LED box;

[0024] 10. First locking tongue member; 11. Lock tongue body; 12. Stopper;

[0025] 20. Connecting member; 21. Connecting substrate; 211. First connecting through hole; 212. Notch structure; 213. Second connecting through hole; 23. Mounting plate;

[0026] 30. first locking member; 31. mounting seat; 32. moving plate; 321. first plate segment; 322. second plate segment; 323. third plate segment; 33. metal baffle;

[0027] 41. Cover body; 411. Avoidance; 42. Rear operating part; 43. Guide groove; 44. Guide rib; 45. First front operating part; 46. Second front operating part; 47. Limiting cylinder; 471. Limiting hole; 48. Positioning structure; 481. Positioning hole; 482. Positioning pin. DETAILED DESCRIPTION

[0028] 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.

[0029] like Figures 1 to 4 As shown, the present application provides a connection component, which is connected between a first LED box 1 and a stand. An embodiment of the connection component of the present application includes: a first locking tongue member 10, a connecting member 20, a first locking member 30, and a retaining member; the first locking tongue member 10 is connected to the rear side of the first LED box 1, and the first locking tongue member 10 includes a locking tongue body 11 and a stopper 12 arranged at the rear end of the locking tongue body 11; the connecting member 20 is connected to the stand, and the connecting member 20 includes a connecting substrate 21, and a first connecting through hole 211 is arranged on the connecting substrate 21, and the first locking tongue member 10 can pass through the first connecting through hole 211 So that the stopper 12 is located on the rear side of the connecting substrate 21; the first locking member 30 is movably arranged on the connecting substrate 21, and the first locking member 30 has a locking position and an unlocking position. When the first locking member 30 is located at the locking position, the first locking member 30 is located on the front side of the stopper 12 to limit the first locking tongue member 10 from disengaging forward from the first connecting through hole 211. When the first locking member 30 is located at the unlocking position, the first locking member 30 is separated from the stopper 12; a retaining member is arranged on the connecting substrate 21, and the retaining member can cooperate with the first locking member 30 to keep the first locking member 30 in the locking position.

[0030] By applying the technical solution of this embodiment, the first locking tongue member 10 is installed on the rear side of the first LED box 1, the stopper 12 is arranged at the rear end of the locking tongue body 11, the connecting member 20 is connected to the stand, and the connecting substrate 21 is provided with a first connecting through hole 211. When installing the first LED box 1, the staff makes the first locking tongue member 10 pass through the first connecting through hole 211 and makes the stopper 12 located at the rear side of the connecting substrate 21, and then makes the first locking member 30 located at the locking position, the first locking member 30 is located at the front side of the stopper 12, and the first locking member 30 and the stopper 12 are connected. The stopper cooperates to limit the first locking tongue member 10 from disengaging forward from the first connecting through hole 211, and the retainer cooperates with the first locking member 30 to keep the first locking member 30 in the locked position, so that the first LED box 1 will not be disengaged from the connecting member 20; when the first LED box 1 needs to be disassembled, the staff can control the first locking member 30 so that the first locking member 30 is in the unlocked position, the first locking member 30 is separated from the stopper 12, and then the first locking tongue member 10 is disengaged forward from the first connecting through hole 211, so as to realize the disassembly of the first LED box 1. Compared with the method of installing the LED box on the stand by screws in the related art, in this embodiment, the staff only needs to switch the first locking member 30 between the locked position and the unlocked position to realize the loading and unloading of the first LED box 1, which simplifies the operation of the staff and improves the work efficiency of the staff. Therefore, the technical solution of this embodiment can effectively solve the problem of the complicated operation of loading and unloading the LED box on the stand in the related art.

[0031] It should be noted that when the first LED box 1 is mounted on a stand, the “front” used in this article to describe the orientation refers to the direction in which the first LED box 1 faces the viewer; “back” refers to the direction in which the first LED box 1 faces away from the viewer; “up” refers to the direction in which the first LED box 1 is away from the ground; and “down” refers to the direction in which the first LED box 1 is close to the ground.

[0032] In addition, in other embodiments not shown in the figures, the retaining member cooperates with the first locking member to keep the first locking member in the unlocked position or in both the locked position and the unlocked position; by using the retaining member to keep the first locking member in the unlocked position, when installing the first LED box, the staff does not need to use one hand to keep the first locking member in the unlocked position and use the other hand to install the first LED box, freeing one hand of the staff, thereby simplifying the staff's operation.

[0033] like Figures 1 to 5 As shown, the connection assembly further includes a cover body 41, and the cover body 41 and the rear side of the connection base plate 21 form a receiving space, the first locking member 30 and the retaining member are arranged in the receiving space, and the retaining member includes a compression spring, the first end of the compression spring is abutted against the first locking member 30, and the second end of the compression spring is abutted against the side wall of the cover body 41. Specifically, the cover body 41 is used to install the first locking member 30 and the retaining member to prevent them from being separated from the connection member 20, the cover body 41 includes a cover plate and a surrounding plate arranged around the cover plate and extending forward, the lower end of the first locking member 30 is provided with a mounting seat 31, one end of the compression spring is sleeved on the outer periphery of the mounting seat 31 to abut against the mounting seat 31, and the other end of the compression spring is abutted against the inner surface of the lower surrounding plate, and the compression spring applies an upward force to the first locking member 30, so that the first locking member 30 is maintained in the locked position. A mounting post is provided on the rear side of the connecting substrate 21, a mounting hole is provided on the cover body 41, and the cover body 41 is connected to the rear side of the connecting substrate 21 by screws passing through the mounting post and the mounting hole; the compression spring has the advantage of a simple structure.

[0034] like Figures 1 to 4As shown, the first locking member 30 includes a moving plate 32 and a metal baffle 33 disposed on the moving plate 32. The first end of the compression spring is in abutment with the moving plate 32, and the metal baffle 33 can be in a stoppered manner with the stopper 12. Specifically, the stopper 12 is a convex block structure, and the metal baffle 33 has a relatively large structural strength. When the first locking member 30 is located at the locking position, the rear side of the metal baffle 33 is in a stoppered manner with the front side of the stopper 12 to limit the first locking tongue member 10 from disengaging from the first connecting through hole 211 forwardly. The moving plate 32 includes a first plate segment 321, a second plate segment 322, and a third plate segment 323. The first plate segment 321 is located between the second plate segment 322 and the third plate segment 323. The first plate segment 321 is located below the first connecting through hole 211. The moving plate 32 can move in the up and down directions. A groove is disposed on the upper portion of the first plate segment 321, and the metal baffle 33 is disposed in the groove.

[0035] like Figures 1 to 4 As shown, the connection assembly further includes a rear operating portion 42, the cover body 41 has an escape opening 411, and the rear operating portion 42 is arranged outside the accommodation space and connected to the movable plate 32 through the escape opening 411. Specifically, the rear operating portion 42 is connected to the second plate segment 322 and is located above the second plate segment 322. When the first locking member 30 needs to be switched from the locked position to the unlocked position, the staff only needs to press the rear operating portion 42 from the rear to move the first locking member 30 downward, so that the first locking member 30 can be switched to the unlocked position, thereby enabling the staff to operate the first locking member 30 from the rear.

[0036] like Figures 1 to 5 As shown, the connecting assembly also includes a guide groove 43 extending in a preset direction and a guide rib 44 guiding and cooperating with the guide groove 43, the guide rib 44 is arranged on the movable plate 32, and the guide groove 43 is arranged on the cover body 41. Specifically, the "preset direction" refers to the up-down direction, the guide rib 44 is arranged on the rear surface of the second plate segment 322 and extends in the up-down direction, and the guide groove 43 is arranged on the front surface of the cover body 41, so as to realize the up-down movement of the movable plate 32. In an embodiment not shown in the figure, the guide groove is arranged on the movable plate, and the guide rib is arranged on the cover body, which can also realize the up-down movement of the movable plate.

[0037] like Figures 1 to 4As shown, the connection substrate 21 is provided with a notch structure 212 that penetrates the connection substrate 21 along the front-to-back direction of the connection substrate 21, and the connection assembly further includes a first front operating portion 45, which is connected to the movable plate 32, and at least a portion of the first front operating portion 45 is exposed from the notch structure 212. Specifically, the first front operating portion 45 is connected to the third plate segment 323, and when the first locking member 30 needs to be switched from the locked position to the unlocked position, the staff only needs to use a paddle to press the portion of the first front operating portion 45 exposed from the notch structure 212 from the front, so that the first locking member 30 moves downward, and the first locking member 30 can be switched to the unlocked position, so that the staff can operate the first locking member 30 from the front.

[0038] like Figures 1 to 5 As shown, the connection assembly is also connected between the second LED box and the stand adjacent to the first LED box 1, and the connection assembly also includes a second locking tongue and a second locking member. The connection substrate 21 is also provided with a second connection through hole 213 spaced apart from the first connection through hole 211 in the transverse direction. The second locking tongue is connected to the rear side of the second LED box, and the second locking tongue can pass through the second connection through hole 213. The second locking member is movably provided on the connection substrate 21 and can be locked or unlocked with the second locking tongue. Specifically, the second locking tongue and the second locking member are similar in structure to the first locking tongue 10 and the first locking member 30, and are not described in detail here; the first connection through hole 211 and the second connection through hole 213 enable the first LED box 1 and the second LED box to be spliced ​​in the transverse direction.

[0039] like Figures 1 to 4 As shown, the notch structure 212 is arranged between the first connection through hole 211 and the second connection through hole 213, and the connection assembly further includes a second front operating portion 46 connected to the second locking member, at least a portion of the second front operating portion 46 is exposed from the notch structure 212, and the second front operating portion 46 and the first front operating portion 45 are staggered in the extension direction of the notch structure 212. Specifically, the second front operating portion 46 is located above the first front operating portion 45, the third plate segment 323 is located between the first connection through hole 211 and the second connection through hole 213, the second plate segment 322 is located on the side of the first plate segment 321 away from the second connection through hole 213, and the second front operating portion 46 and the first front operating portion 45 can share a notch structure 212, thereby simplifying the structure of the connection assembly. When the first LED box 1 and the second LED box are spliced ​​in the horizontal direction, there is an installation gap between the first LED box 1 and the second LED box, and the installation gap can expose the notch structure 212, the first front operating part 45 and the second front operating part 46, so that the staff can use a paddle to pass through the installation gap and press the first front operating part 45 and the second front operating part 46 from the front.

[0040] like Figures 1 to 5 As shown, the connection assembly also includes a limiting cylinder 47 disposed on the rear side of the connection substrate 21, the limiting cylinder 47 is disposed at the first connection through hole 211, the limiting cylinder 47 has a limiting hole 471, the rear end of the first locking tongue member 10 is penetrated in the limiting hole 471, and the limiting hole 471 can be guided and matched with the outer side wall of the stopper 12. Specifically, the limiting hole 471 is clearance-matched with the first locking tongue member 10 and can be guided and matched with the outer side wall of the stopper 12, so that the first locking tongue member 10 can smoothly penetrate the first connection through hole 211 and the limiting hole 471.

[0041] like Figures 1 to 4 As shown, a positioning structure 48 is provided between the first locking tongue member 10 and the connecting substrate 21. Specifically, in the present embodiment, the positioning structure 48 comprises two positioning holes 481 and two positioning pins 482, the two positioning holes 481 are provided on the connecting substrate 21 and are spaced apart in the oblique direction, the two positioning pins 482 are spaced apart in the oblique direction and are respectively located on both sides of the locking tongue body 11 and are both connected to the locking tongue body 11, and the positioning pins 482 and the positioning holes 481 are positioned and matched to limit the movement of the first LED box 1 relative to the connecting substrate 21 in the up-down direction and the lateral direction.

[0042] The present application also provides an LED display device, which includes a stand, a first LED box 1, and a connecting assembly, wherein the first LED box 1 is connected to the stand via the connecting assembly, wherein the connecting assembly is the above-mentioned connecting assembly. The above-mentioned connecting assembly can effectively solve the problem of the relatively complicated operation of loading and unloading the LED box on the stand in the related art, and the LED display device having the above-mentioned connecting assembly also has the above-mentioned advantages.

[0043] In this embodiment, the first locking tongue member 10 is installed at a corner of the first LED box 1 .

[0044] In addition, the connecting component also includes a mounting plate 23, which is arranged on the rear side of the connecting substrate 21 and is spaced apart from the connecting substrate 21. The staff connects the mounting plate 23 and the stand by screws so that the connecting member 20 is connected to the stand. The mounting plate 23 and the connecting substrate 21 are staggered in the up and down directions.

[0045] Specifically, currently, a screen body is generally used in the market by fixing the screen body on a frame through an installation lock, during which the installation lock and the screen body need to be tightened by screws.

[0046] The installation lock needs to be tightened by screws, which takes a long time to install when building the screen, and the disassembly of the screen is also cumbersome, requiring the screws to be loosened and the screen to be disassembled. The connecting piece of the present embodiment can be directly buckled on the screen for use, and when disassembling, only the locking piece of the connecting assembly needs to be pressed down to loosen the locking tongue piece, saving time for installing and disassembling the screen.

[0047] The connection assembly of this embodiment is composed of a metal connection substrate, a cover body, a movable plate, a metal baffle, a spring and a screw. There is a metal baffle on the movable plate, and a spring is installed inside the cover body. The movable plate and the cover body are assembled and then fixed on the metal connection substrate to form a connector. When the connector is in use, the connector is directly buckled into the installation corners of the four corners of the screen body. When disassembling, the movable plate needs to be pressed down, and the connector and the screen body are in an unlocked state. Its working principle: when the connector is buckled into the installation corner of the screen body, the spring is compressed under the action of an applied force, and the metal baffle on the movable plate moves downward, and the metal baffle presses against the outside of the installation corner. After the connector is completely buckled into the installation corner, the metal baffle cannot press against the outside of the installation corner, and the spring will rebound. At this time, the head of the metal baffle just presses against the inside of the installation corner to complete the fixation.

[0048] By using the connection assembly of this embodiment, installation and disassembly can be completed quickly, which saves operation time and greatly improves work efficiency.

[0049] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] 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.

[0051] 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. A connection assembly connected between a first LED box (1) and a stand, characterized in that: The connection component comprises: A first locking tongue member (10) connected to the rear side of the first LED box (1), the first locking tongue member (10) comprising a locking tongue body (11) and a stopper (12) arranged at the rear end of the locking tongue body (11); A connecting member (20) connected to the stand, the connecting member (20) comprising a connecting base plate (21), the connecting base plate (21) being provided with a first connecting through hole (211), the first locking tongue member (10) being able to pass through the first connecting through hole (211) so that the stop member (12) is located at the rear side of the connecting base plate (21); a first locking member (30) movably arranged on the connecting substrate (21), the first locking member (30) having a locking position and an unlocking position, when the first locking member (30) is located at the locking position, the first locking member (30) is located at the front side of the stopper (12) to restrict the first locking tongue member (10) from being disengaged forward from the first connecting through hole (211), when the first locking member (30) is located at the unlocking position, the first locking member (30) is separated from the stopper (12); A retaining member is arranged on the connecting substrate (21), and the retaining member can cooperate with the first locking member (30) so that the first locking member (30) is retained in the locking position and / or the unlocking position.

2. The connection assembly according to claim 1, characterized in that: The connecting assembly also includes a cover body (41), and the cover body (41) and the rear side of the connecting substrate (21) form a receiving space, and the first locking member (30) and the retaining member are arranged in the receiving space, and the retaining member includes a compression spring, and the first end of the compression spring is abutted against the first locking member (30), and the second end of the compression spring is abutted against the side wall of the cover body (41).

3. The connection assembly according to claim 2, characterized in that: The first locking member (30) comprises a movable plate (32) and a metal baffle (33) arranged on the movable plate (32); the first end of the compression spring is in abutment with the movable plate (32); and the metal baffle (33) can be in stop cooperation with the stop member (12).

4. The connection assembly according to claim 3, characterized in that: The connection assembly further comprises a rear operating portion (42), the cover body (41) has an escape opening (411), and the rear operating portion (42) is arranged outside the accommodation space and connected to the movable plate (32) through the escape opening (411).

5. The connection assembly according to claim 4, characterized in that: The connecting assembly further comprises a guide groove (43) extending in a preset direction and a guide rib (44) cooperating with the guide groove (43) for guiding, wherein one of the guide groove (43) and the guide rib (44) is arranged on the movable plate (32), and the other of the guide groove (43) and the guide rib (44) is arranged on the cover body (41).

6. The connection assembly according to any one of claims 3 to 5, characterized in that: The connecting substrate (21) is provided with a notch structure (212) penetrating the connecting substrate (21) along the front-rear direction of the connecting substrate (21), and the connecting component further comprises a first front operating portion (45), the first front operating portion (45) being connected to the movable plate (32), and at least a portion of the first front operating portion (45) being exposed from the notch structure (212).

7. The connection assembly according to claim 6, characterized in that: The connection assembly is also connected between a second LED box arranged adjacent to the first LED box (1) and the stand, and the connection assembly also includes a second locking tongue piece and a second locking piece. The connection substrate (21) is also provided with a second connection through hole (213) spaced apart from the first connection through hole (211) in a transverse direction. The second locking tongue piece is connected to the rear side of the second LED box, and the second locking tongue piece can pass through the second connection through hole (213). The second locking piece is movably arranged on the connection substrate (21) and can cooperate with the second locking tongue piece in locking or unlocking.

8. The connection assembly according to claim 7, characterized in that: The notch structure (212) is arranged between the first connecting through hole (211) and the second connecting through hole (213), and the connecting assembly further comprises a second front operating portion (46) connected to the second locking member, at least a portion of the second front operating portion (46) is exposed from the notch structure (212), and the second front operating portion (46) and the first front operating portion (45) are staggered in the extension direction of the notch structure (212).

9. The connection assembly according to any one of claims 1 to 5, characterized in that: The connection assembly further comprises a limiting cylinder (47) arranged on the rear side of the connection base plate (21), the limiting cylinder (47) being arranged at the first connection through hole (211), the limiting cylinder (47) having a limiting hole (471), the rear end of the first locking tongue member (10) being inserted into the limiting hole (471), and the limiting hole (471) being able to cooperate with the outer side wall of the stop member (12) in a guiding manner; and / or, A positioning structure (48) is provided between the first locking tongue member (10) and the connecting substrate (21).

10. An LED display device, comprising a stand, a first LED box (1) and a connecting assembly, wherein the first LED box (1) is connected to the stand via the connecting assembly, characterized in that: The connection assembly is the connection assembly according to any one of claims 1 to 9.

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