LED display screen and spliced screen

Abstract

The utility model relates to the field of LED display, in particular to an LED display screen and a splicing screen. The sliding support is slidably connected with the connecting frame, the sliding support slides to a first position, the dimming plate shields each first light hole, each first light hole is in a shading state, the sliding support slides to a second position, the dimming plate does not shield each first light hole, that is, each first light hole is in a light transmitting state, and on the same LED display screen, the dimming plate does not shield each first light hole. A user can adjust the LED display screen according to needs, so that the LED display screen has light transmission or light shading performance and is suitable for two stage display effects, and the problem that an existing display screen is only suitable for a single stage display effect and cannot well meet the requirements of the user is solved.

Description

Technical Field

[0001] The utility model relates to the field of LED display, in particular to an LED display screen and a spliced ​​screen. Background Art

[0002] In the prior art, LED display screens are generally divided into two types. The first type of LED display screen has light-transmitting holes on the light board, which are generally strip-shaped. The first type of LED display screen has good light transmittance and is used for stage display effects that require good light transmittance. The second type of LED display screen has no light-transmitting holes on the light board, and the second type of LED display screen has good light-shielding properties and is used for stage display effects that require good light-shielding properties. When users need stage display effects with good light transmittance and stage display effects with good light-shielding properties, they need to purchase both LED display screens with good light transmittance and LED display screens with good light-shielding properties. Existing LED displays are only suitable for a single stage display effect and cannot meet user needs well. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the utility model proposes an LED display screen and a spliced ​​screen, aiming to solve the problem that the existing display screen is only suitable for a single stage display effect and cannot well meet the needs of users.

[0004] The technical solution proposed by the utility model is:

[0005] An LED display screen includes a light board, a frame, a bracket, a connecting frame, a dimming plate, a sliding bracket and a locking device, wherein the light board is arranged on the frame, the light board is provided with a plurality of first light-transmitting holes, the bracket is detachably connected to the frame, the connecting frame is connected to the bracket, the sliding bracket is slidably connected to the connecting frame, the dimming plate is connected to the sliding bracket and is located on the back side of the light board, the locking device is arranged on the connecting frame and is used to lock the sliding bracket, when the sliding bracket slides to the first position, the locking device locks the sliding bracket so that the dimming plate blocks each of the first light-transmitting holes, and when the sliding bracket slides to the second position, the locking device locks the sliding bracket so that the dimming plate does not cover each of the first light-transmitting holes.

[0006] Furthermore, the LED display screen includes two plug-in mechanisms, which are respectively arranged at two ends of the bracket, and the frame has two frame plates arranged opposite to each other. The frame plates are provided with plug-in holes, and the plug-in mechanisms are inserted into the plug-in holes.

[0007] Furthermore, the plug-in mechanism includes a plug-in rod, a limit block, and a first spring. Guide grooves are respectively provided at both ends of the bracket, and two spring grooves and two limit grooves are provided on the upper side wall of the bracket. Each of the spring grooves and each of the limit grooves passes through a guide groove. One end of the plug-in rod is inserted into the guide groove, one end of the limit block is connected to the plug-in rod, and the other end is placed in the limit groove. The plug-in rod moves in the guide groove to drive the limit block to move in the limit groove. The first spring is sleeved on the plug-in rod and is located in the spring groove. A protrusion is provided on the plug-in rod, one end of the first spring abuts against the protrusion, and the other end abuts against the spring groove. The first spring elastically drives the other end of the plug-in rod to extend out of the guide groove and insert into the plug-in hole.

[0008] Furthermore, a first mounting groove is provided on the upper side wall of the bracket, and the connecting frame is connected to the bottom wall of the first mounting groove and is located in the first mounting groove.

[0009] Furthermore, the bottom wall of the first mounting groove is provided with a second mounting groove, the upper side wall of the sliding bracket is slidably connected to the lower side wall of the connecting bracket, the lower side wall of the sliding bracket is slidably connected to the bottom wall of the second mounting groove, the bottom wall of the second mounting groove is provided with a first through hole and a second through hole, the lower side wall of the sliding bracket is provided with a first connecting block and a second connecting block, the first connecting block is connected to the dimming board through the first through hole, and the first connecting block can move in the first through hole along the sliding direction of the sliding bracket, the second connecting block is connected to the dimming board through the second through hole, and the second connecting block can move in the second through hole along the sliding direction of the sliding bracket.

[0010] Furthermore, the LED display screen includes a second spring, the bottom wall of the second mounting groove is provided with a first accommodating groove having an opening, the first accommodating groove is connected with the first through hole through the opening, the second spring is placed in the first accommodating groove, one end of the second spring abuts against the first side wall of the first accommodating groove, and the other end of the second spring abuts against the first connecting block, and the second spring elastically drives the first connecting block to move in a direction away from the first side wall of the first accommodating groove.

[0011] Further, the locking device includes a first locking rod, a second locking rod, a third spring and a locking cap, the bracket is provided with a second accommodating groove, the sliding bracket is provided with a sliding hole, the two ends of the sliding hole are respectively the first locking hole and the second locking hole, the connecting frame is provided with a third through hole, the second locking rod is placed in the second accommodating groove, one end of the third spring abuts against the groove bottom wall of the second accommodating groove, and the other end abuts against the first end of the second locking rod, the second end of the second locking rod is connected to the first end of the first locking rod, and the second end of the first locking rod passes through the sliding hole and the third through hole and is connected to the locking cap;

[0012] The first position is a position where the first locking rod passes through the first locking hole, the first locking hole clamps the second end of the second locking rod, and the second end of the second locking rod cooperates with the locking cap to press the sliding bracket onto the connecting frame to limit the movement of the sliding bracket;

[0013] The second position is a position where the first locking rod passes through the second locking hole, the second end of the second locking rod is inserted into the second locking hole, and the third through hole clamps the second end of the second locking rod to limit the movement of the sliding bracket.

[0014] Furthermore, the LED display screen includes a handle, and the connecting frame is provided with an avoidance opening. The handle passes through the avoidance opening and moves in the avoidance opening. When the sliding bracket slides to the first position, the handle abuts against one side wall of the avoidance opening. When the sliding bracket slides to the second position, the handle abuts against the other side wall of the avoidance opening.

[0015] Furthermore, the guide groove at one end of the bracket is connected to the guide groove at the other end of the bracket.

[0016] The utility model also provides a spliced ​​screen, comprising a plurality of the above-mentioned LED display screens.

[0017] According to the above technical scheme, the utility model has the following beneficial effects: the sliding bracket is slidably connected to the connecting bracket, the sliding bracket slides to the first position, the dimming plate blocks each first light-transmitting hole, and each first light-transmitting hole is in a light-shielding state, the sliding bracket slides to the second position, the dimming plate does not cover each first light-transmitting hole, that is, each first light-transmitting hole is in a light-transmitting state, on the same LED display screen, the user can adjust the LED display screen according to the needs, so that the LED display screen has light transmittance or light-shielding properties, which is suitable for two stage display effects, and solves the problem that the existing display screen is only suitable for a single stage display effect and cannot meet the needs of users well. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a structural schematic diagram of an LED display screen provided by an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of an LED display screen provided by an embodiment of the utility model in which a dimming board is not installed;

[0020] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0021] Figure 4 It is a structural schematic diagram of the connection of the connecting frame, dimming plate, sliding bracket and locking device provided by the embodiment of the utility model;

[0022] Figure 5 yes Figure 4 A cross-sectional view of

[0023] Figure 6 It is a structural schematic diagram of a sliding bracket provided by an embodiment of the utility model.

[0024] Description of the accompanying figures: lamp board 1, first light-transmitting hole 11, frame 2, bracket 3, guide groove 31, spring groove 32, limit groove 33, first mounting groove 34, second mounting groove 341, first through hole 3411, second through hole 3412, first accommodating groove 3413, connecting frame 4, avoidance opening 41, dimming plate 5, sliding bracket 6, first connecting block 61, second connecting block 62, second spring 63, sliding hole 64, handle 65, locking device 7, first locking rod 71, second locking rod 72, third spring 73, locking cap 74, plug-in mechanism 8, plug-in rod 81, limit block 82, first spring 83. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] like Figures 1 to 6As shown, an embodiment of the utility model proposes an LED display screen, including a lamp board 1, a frame 2, a bracket 3, a connecting frame 4, a dimming plate 5, a sliding bracket 6 and a locking device 7, wherein the lamp board 1 is arranged on the frame 2, and the lamp board 1 is provided with a plurality of first light-transmitting holes 11, the bracket 3 is detachably connected to the frame 2, the connecting frame 4 is connected to the bracket 3, the sliding bracket 6 is slidably connected to the connecting frame 4, the dimming plate 5 is connected to the sliding bracket 6, and is located on the back side of the lamp board 1, the locking device 7 is arranged on the connecting frame 4, and is used to lock the sliding bracket 6, when the sliding bracket 6 slides to the first position, the locking device 7 locks the sliding bracket 6 so that the dimming plate 5 blocks each of the first light-transmitting holes 11, and when the sliding bracket 6 slides to the second position, the locking device 7 locks the sliding bracket 6 so that the dimming plate 5 does not cover each of the first light-transmitting holes 11.

[0027] The sliding bracket 6 is slidably connected to the connecting bracket 4. When the sliding bracket 6 slides to the first position, the dimming plate 5 blocks each first light-transmitting hole 11, and each first light-transmitting hole 11 is in a light-shielding state. When the sliding bracket 6 slides to the second position, the dimming plate 5 does not cover each first light-transmitting hole 11, that is, each first light-transmitting hole 11 is in a light-transmitting state. On the same LED display screen, the user can adjust the LED display screen according to the needs to make the LED display screen have light transmittance or light-shielding properties, which is suitable for two stage display effects, thereby solving the problem that the existing display screen is only suitable for a single stage display effect and cannot meet the needs of users well.

[0028] In this embodiment, the LED display screen includes two plug-in mechanisms 8, which are respectively arranged at the two ends of the bracket 3. The frame 2 has two frame plates arranged opposite to each other, and the frame plates are provided with plug-in holes, and the plug-in mechanisms 8 are inserted into the plug-in holes. The plug-in mechanism 8 at one end of the bracket 3 is inserted into a plug-in hole of one frame plate, and the plug-in mechanism 8 at the other end of the bracket 3 is inserted into a plug-in hole of another frame plate, so as to realize the detachable connection between the bracket 3 and the frame 2.

[0029] In this embodiment, the plug-in mechanism 8 includes a plug-in rod 81, a limit block 82, and a first spring 83. Guide grooves 31 are respectively provided at both ends of the bracket 3. Two spring grooves 32 and two limit grooves 33 are provided on the upper side wall of the bracket 3. Each of the spring grooves 32 and each of the limit grooves 33 passes through one of the guide grooves 31. One end of the plug-in rod 81 is inserted into the guide groove 31. One end of the limit block 82 is connected to the plug-in rod 81, and the other end is placed in the limit groove 33. The plug-in rod 81 moves in the guide groove 31 to drive the limit block 82 to move in the limit groove 33. The first spring 83 is sleeved on the plug-in rod 81 and is located in the spring groove 32. A protrusion is provided on the plug-in rod 81. One end of the first spring 83 abuts against the protrusion, and the other end abuts against the spring groove 32. The first spring 83 elastically drives the other end of the plug-in rod 81 to extend out of the guide groove 31 and insert into the plug-in hole. Under the action of external force, the plug rod 81 can force the first spring 83 to compress, thereby retracting into the guide groove 31. When there is no external force, the elastic force of the first spring 83 forces the plug rod 81 to extend out of the guide groove 31 and insert into the plug hole. The cooperation between the limit block 82 and the limit groove 33 limits the expansion and contraction amount of the plug rod 81 in the guide groove 31.

[0030] In this embodiment, the upper side wall of the bracket 3 is provided with a first mounting groove 34, and the connecting frame 4 is connected to the bottom wall of the first mounting groove 34 and is located in the first mounting groove 34. Hiding the connecting frame 4 in the first mounting groove 34 can avoid collision with the connecting frame 4 from the side and is also beautiful.

[0031] In this embodiment, the bottom wall of the first mounting groove 34 is provided with a second mounting groove 341, the upper side wall of the sliding bracket 6 is slidably connected to the lower side wall of the connecting frame 4, the lower side wall of the sliding bracket 6 is slidably connected to the bottom wall of the second mounting groove 341, the bottom wall of the second mounting groove 341 is provided with a first through hole 3411 and a second through hole 3412, the lower side wall of the sliding bracket 6 is provided with a first connecting block 61 and a second connecting block 62, the first connecting block 61 passes through the first through hole 3411 to be connected to the dimming plate 5, and the first connecting block 61 can move in the first through hole 3411 along the sliding direction of the sliding bracket 6, the second connecting block 62 passes through the second through hole 3412 to be connected to the dimming plate 5, and the second connecting block 62 can move in the second through hole 3412 along the sliding direction of the sliding bracket 6. The sliding bracket 6 is slidably connected to the connecting frame 4 and the second mounting groove 341, which ensures the sliding reliability of the sliding bracket 6. The sliding bracket 6 is connected to the dimming plate 5 through the first connecting block 61 and the second connecting block 62. The sliding of the sliding bracket 6 drives the dimming plate 5 to move.

[0032] In this embodiment, the LED display screen includes a second spring 63, the bottom wall of the second mounting groove 341 is provided with a first receiving groove 3413 having an opening, the first receiving groove 3413 is connected with the first through hole 3411 through the opening, the second spring 63 is placed in the first receiving groove 3413, one end of the second spring 63 abuts against the first side wall of the first receiving groove 3413, the other end of the second spring 63 abuts against the first connecting block 61, and the second spring 63 elastically drives the first connecting block 61 to move away from the first side wall of the first receiving groove 3413. In the absence of external force, the second spring 63 can force the first connecting block 61 to move, so that the user does not need to manually reset it.

[0033] In this embodiment, the locking device 7 includes a first locking rod 71, a second locking rod 72, a third spring 73 and a locking cap 74, the bracket 3 is provided with a second accommodating groove, the sliding bracket 6 is provided with a sliding hole 64, the two ends of the sliding hole 64 are respectively the first locking hole and the second locking hole, the connecting frame 4 is provided with a third through hole, the second locking rod 72 is placed in the second accommodating groove, one end of the third spring 73 abuts against the bottom wall of the second accommodating groove, and the other end abuts against the first end of the second locking rod 72, the second end of the second locking rod 72 is connected to the first end of the first locking rod 71, and the second end of the first locking rod 71 passes through the sliding hole 64 and the third through hole and is connected to the locking cap 74.

[0034] The first position is the position where the first locking rod 71 passes through the first locking hole. The first locking hole clamps the second end of the second locking rod 72. The second end of the second locking rod 72 cooperates with the locking cap 74 to press the sliding bracket 6 onto the connecting frame 4 to limit the movement of the sliding bracket 6.

[0035] The second position is the position where the first locking rod 71 passes through the second locking hole, the second end of the second locking rod 72 is inserted into the second locking hole, and the third through hole clamps the second end of the second locking rod 72 to limit the movement of the sliding bracket 6. The second locking rod 72 is pressed upward by the third spring 73, and then the locking cap 74 is connected to the first locking rod 71 to lock the sliding bracket 6.

[0036] In this embodiment, the LED display screen includes a handle 65, the connecting frame 4 is provided with an escape opening 41, the handle 65 passes through the escape opening 41 and moves in the escape opening 41, when the sliding bracket 6 slides to the first position, the handle 65 abuts against one side wall of the escape opening 41, and when the sliding bracket 6 slides to the second position, the handle 65 abuts against the other side wall of the escape opening 41. The handle 65 is for the user to grasp and apply force to the sliding bracket 6.

[0037] In this embodiment, the guide groove 31 at one end of the bracket 3 is connected to the guide groove 31 at the other end of the bracket 3 .

[0038] The embodiment of the utility model further provides a spliced ​​screen, comprising a plurality of LED display screens as described above.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED display screen, characterized in that: The utility model comprises a lamp board, a frame, a bracket, a connecting frame, a dimming plate, a sliding bracket and a locking device, wherein the lamp board is arranged on the frame, the lamp board is provided with a plurality of first light-transmitting holes, the bracket is detachably connected to the frame, the connecting frame is connected to the bracket, the sliding bracket is slidably connected to the connecting frame, the dimming plate is connected to the sliding bracket and is located on the back side of the lamp board, the locking device is arranged on the connecting frame and is used to lock the sliding bracket, when the sliding bracket slides to the first position, the locking device locks the sliding bracket so that the dimming plate blocks each of the first light-transmitting holes, when the sliding bracket slides to the second position, the locking device locks the sliding bracket so that the dimming plate does not cover each of the first light-transmitting holes.

2. The LED display screen according to claim 1, characterized in that: The LED display screen comprises two plug-in mechanisms, which are respectively arranged at two ends of the bracket. The frame has two frame plates arranged opposite to each other, and the frame plates are provided with plug-in holes, and the plug-in mechanisms are inserted into the plug-in holes.

3. The LED display screen according to claim 2, characterized in that: The plug-in mechanism includes a plug-in rod, a limit block, and a first spring. Guide grooves are respectively provided at both ends of the bracket. The upper side wall of the bracket is provided with two spring grooves and two limit grooves, each of the spring grooves and each of the limit grooves passes through one of the guide grooves, one end of the plug-in rod is inserted into the guide groove, one end of the limit block is connected to the plug-in rod, and the other end is placed in the limit groove. The plug-in rod moves in the guide groove to drive the limit block to move in the limit groove. The first spring is sleeved on the plug-in rod and is located in the spring groove. A protrusion is provided on the plug-in rod, one end of the first spring abuts against the protrusion, and the other end abuts against the spring groove. The first spring elastically drives the other end of the plug-in rod to extend out of the guide groove and insert into the plug hole.

4. The LED display screen according to claim 1, characterized in that: The upper side wall of the bracket is provided with a first mounting groove, and the connecting frame is connected to the bottom wall of the first mounting groove and is located in the first mounting groove.

5. The LED display screen according to claim 4, characterized in that: The bottom wall of the first mounting groove is provided with a second mounting groove, the upper side wall of the sliding bracket is slidably connected to the lower side wall of the connecting bracket, the lower side wall of the sliding bracket is slidably connected to the bottom wall of the second mounting groove, the bottom wall of the second mounting groove is provided with a first through hole and a second through hole, the lower side wall of the sliding bracket is provided with a first connecting block and a second connecting block, the first connecting block is connected to the dimming board through the first through hole, and the first connecting block can move in the first through hole along the sliding direction of the sliding bracket, the second connecting block is connected to the dimming board through the second through hole, and the second connecting block can move in the second through hole along the sliding direction of the sliding bracket.

6. The LED display screen according to claim 5, characterized in that: The LED display screen includes a second spring, and the bottom wall of the second mounting groove is provided with a first accommodating groove having an opening, the first accommodating groove is connected with the first through hole through the opening, the second spring is placed in the first accommodating groove, one end of the second spring abuts against the first side wall of the first accommodating groove, and the other end of the second spring abuts against the first connecting block, and the second spring elastically drives the first connecting block to move in a direction away from the first side wall of the first accommodating groove.

7. The LED display screen according to claim 6, characterized in that: The locking device comprises a first locking rod, a second locking rod, a third spring and a locking cap, the bracket is provided with a second accommodating groove, the sliding bracket is provided with a sliding hole, the two ends of the sliding hole are respectively the first locking hole and the second locking hole, the connecting frame is provided with a third through hole, the second locking rod is placed in the second accommodating groove, one end of the third spring abuts against the groove bottom wall of the second accommodating groove, and the other end abuts against the first end of the second locking rod, the second end of the second locking rod is connected to the first end of the first locking rod, and the second end of the first locking rod passes through the sliding hole and the third through hole and is connected to the locking cap; The first position is a position where the first locking rod passes through the first locking hole, the first locking hole clamps the second end of the second locking rod, and the second end of the second locking rod cooperates with the locking cap to press the sliding bracket onto the connecting frame to limit the movement of the sliding bracket; The second position is a position where the first locking rod passes through the second locking hole, the second end of the second locking rod is inserted into the second locking hole, and the third through hole clamps the second end of the second locking rod to limit the movement of the sliding bracket.

8. The LED display screen according to claim 6, characterized in that: The LED display screen includes a handle, and the connecting frame is provided with an avoidance opening. The handle passes through the avoidance opening and moves in the avoidance opening. When the sliding bracket slides to the first position, the handle abuts against one side wall of the avoidance opening. When the sliding bracket slides to the second position, the handle abuts against the other side wall of the avoidance opening.

9. The LED display screen according to claim 3, characterized in that: The guide groove at one end of the bracket is connected to the guide groove at the other end of the bracket.

10. A spliced ​​screen, characterized in that: It comprises a plurality of LED display screens as claimed in any one of claims 1 to 9.

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