Connecting and fixing device for plastic lampshade of LED display screen

Abstract

The utility model relates to the field of LED display screens, in particular to a connecting and fixing device for a plastic lampshade of an LED display screen. The technical problems that when a plastic lampshade of an LED display screen is installed, a whole non-splicing type plastic lampshade is selected, although the watching effect of the LED display screen and the waterproofness of the plastic lampshade are guaranteed, accurate butt joint is inconvenient due to the large area of the plastic lampshade, and more screws are needed for fixing, so that the plastic lampshade is not convenient to install. Therefore, the installation efficiency of workers is affected. According to the technical scheme, the connecting and fixing device for the plastic lampshade of the LED display screen comprises a frame assembly, a butt joint assembly, a positioning assembly and a lampshade assembly. By arranging the primary butt joint limiting device and the secondary fastening device, the plastic lampshade can be more easily in butt joint with the main frame when being installed, primary fixing can be completed while butt joint is completed, then the whole plastic lampshade can be clamped and fixed only through two-time operation of screwing a threaded rod, and the whole plastic lampshade can be fixed conveniently. And a worker can conveniently install the plastic lampshade, and the worker can conveniently disassemble and replace the plastic lampshade.

Description

Technical Field

[0001] The utility model relates to the field of LED display screens, in particular to a connecting and fixing device for a plastic lampshade of an LED display screen. Background Art

[0002] The plastic lampshade of the LED display is an important component used to protect the LED display from damage by the external environment. It is usually used to isolate dust, moisture, etc. Especially for outdoor LED displays, the design of the plastic lampshade is more important. In order to ensure the viewing effect of the LED display and the waterproofness of the plastic lampshade, the plastic lampshade is often not designed to be spliced ​​together in multiple pieces. However, larger plastic lampshades are not only inconvenient to dock accurately, but also require more screws to fix, which affects the installation efficiency of the staff. Utility Model Content

[0003] In order to overcome the problem that when installing the plastic lampshade of the LED display, a non-spliced ​​whole plastic lampshade is used, although it is conducive to ensuring the viewing effect of the LED display and the waterproofness of the plastic lampshade, it is inconvenient to dock accurately due to its large area, and it also requires more screws to fix, thus affecting the installation efficiency of the staff.

[0004] The technical solution of the utility model is: a device for connecting and fixing a plastic lampshade of an LED display screen, comprising a frame component, a docking component, a positioning component, and a lampshade component; a docking component for docking with the lampshade is arranged on the frame component; a positioning component for fixing the lampshade is arranged in the frame component; and a lampshade component is docked in the docking component.

[0005] Preferably, the frame assembly is used to install the LED module, the docking assembly is used to assist in docking with the transparent lampshade, the positioning assembly is used to fix the transparent lampshade, and the lampshade assembly is used to protect the LED module.

[0006] Preferably, the frame assembly includes a mounting bracket and a fixing frame; the fixing frames are fixedly connected to both sides of the mounting bracket. The mounting bracket is used to mount the LED module.

[0007] Preferably, the docking assembly includes a docking slot, a clamping slot, a slide slot, a docking slot on one side of the fixed frame, a clamping slot at the rear end of the docking slot, and a slide slot inside the fixed frame. Push the transparent lampshade to allow the docking block to enter the docking slot and allow the clamping block to be clamped in the clamping slot.

[0008] Preferably, the positioning assembly includes a first threaded rod, a first bevel gear, a second bevel gear, a rotating shaft, a third bevel gear, a fourth bevel gear, a second threaded rod, a push block, a limit block, a slide rail, and a slide block; the first threaded rod is gap-fitted on the other side of the fixed frame; the first bevel gear is fixedly connected to one side of the first threaded rod; and the second bevel gear is meshed on one side of the first bevel gear. The first threaded rod is screwed to rotate the second bevel gear, the rotating shaft, and the third bevel gear through the first bevel gear, thereby rotating the fourth bevel gear and the second threaded rod.

[0009] Preferably, a rotating shaft is fixed to the second bevel gear; the third bevel gear is fixed to the upper and lower ends of the rotating shaft; a fourth bevel gear is meshed on one side of the third bevel gear; a second threaded rod is fixed to one side of the fourth bevel gear, and the second threaded rod is clearance-matched with the fixed frame; a push block is rotatably connected to one side of the second threaded rod.

[0010] Preferably, the upper and lower ends of the fixed frame are fixed with slide rails, and the slide rails are slidably connected with sliders that are rotatably connected to the rotating shaft; the rotating shaft and the first threaded rod are rotatably connected to the limiting block, and the rotating shaft and the second threaded rod are also rotatably connected to the limiting block. Because the limiting block always meshes the first bevel gear with the second bevel gear, and always meshes the third bevel gear with the fourth bevel gear, after the first threaded rod is twisted, the rotating shaft slides left and right on the slide rail with the slider pushed by the first threaded rod, and the first threaded rod and the second threaded rod are displaced left and right in the fixed frame together, thereby displacing the push block left and right, so that one end of the push block can be pushed into the positioning groove to clamp the transparent lampshade.

[0011] Preferably, the lampshade assembly includes a transparent lampshade, a docking block, a clamping block, and a positioning groove; the clamping block is docked in the clamping groove; the docking block is fixedly connected to the front end of the clamping block; the transparent lampshade is fixedly connected to the docking block; and clamping blocks are provided on both sides of the transparent lampshade.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting the initial docking limit device and the secondary fastening device, the plastic lampshade can be more easily docked with the main frame when being installed, and the initial fixation will be completed at the same time. Then, only two operations of twisting the threaded rod are needed to clamp the entire plastic lampshade, which not only facilitates the installation of the plastic lampshade, but also facilitates the disassembly and replacement of the plastic lampshade;

[0014] 2. Move the transparent lampshade to make the docking block enter the docking groove so that the transparent lampshade and the main frame are docked, and then continue to push the transparent lampshade; make the card block stuck in the card groove, so that the transparent lampshade can be stuck on the fixed frame, thereby simplifying the initial positioning step of the plastic lampshade when installing the plastic lampshade;

[0015] 3. By twisting the first threaded rod to rotate the second bevel gear, the rotating shaft and the third bevel gear through the first bevel gear, the fourth bevel gear and the second threaded rod are rotated. Because the limit block makes the first bevel gear always mesh with the second bevel gear, and makes the third bevel gear always mesh with the fourth bevel gear, after the first threaded rod is twisted, the rotating shaft slides left and right on the slide rail with the slider pushed by the first threaded rod, and the first threaded rod and the second threaded rod are displaced left and right in the fixed frame together, thereby causing the push block to displace left and right, so that one end of the push block can be pushed into the positioning groove to clamp the transparent lampshade; this allows the staff to clamp the entire plastic lampshade by only twisting the threaded rod twice, which not only makes it convenient for the staff to install the plastic lampshade, but also makes it convenient for the staff to disassemble and replace it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 What is shown is a schematic diagram of the mounting bracket structure of the utility model;

[0017] Figure 2 What is shown is a schematic diagram of the first threaded rod structure of the utility model;

[0018] Figure 3 What is shown is a schematic diagram of the transparent lampshade structure of the utility model;

[0019] Figure 4 What is shown is a schematic diagram of the overall structure of the utility model.

[0020] Explanation of the accompanying drawings: 1. frame assembly; 2. docking assembly; 3. positioning assembly; 4. lampshade assembly; 101. mounting bracket; 102. fixing frame; 201. docking groove; 202. clamping groove; 203. slide groove; 301. first threaded rod; 302. first bevel gear; 303. second bevel gear; 304. rotating shaft; 305. third bevel gear; 306. fourth bevel gear; 307. second threaded rod; 308. push block; 309. limit block; 310. slide rail; 311. slider; 401. transparent lampshade; 402. docking block; 403. clamping block; 404. positioning groove. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See also Figure 1The utility model provides an embodiment: a device for connecting and fixing a plastic lampshade of an LED display screen, comprising a frame component 1, a docking component 2, a positioning component 3, and a lampshade component 4; the frame component 1 is provided with a docking component 2 for docking with the lampshade; the frame component 1 is provided with a positioning component 3 for fixing the lampshade; the docking component 2 is docked with the lampshade component 4. The frame component 1 is used to install the LED module, the docking component 2 is used to assist in docking with the transparent lampshade 401, the positioning component 3 is used to fix the transparent lampshade 401, and the lampshade component 4 is used to protect the LED module. The frame component 1 comprises a mounting bracket 101 and a fixing frame 102; the fixing frames 102 are fixedly connected to both sides of the mounting bracket 101. The mounting bracket 101 is used to install the LED module. The docking component 2 comprises a docking groove 201, a card groove 202, and a slide groove 203; a docking groove 201 is provided on one side of the fixing frame 102; a card groove 202 is provided at the rear end of the docking groove 201; and a slide groove 203 is provided inside the fixing frame 102. The transparent lampshade 401 is pushed to allow the docking block 402 to enter the docking slot 201 , and the clamping block 403 is clamped in the clamping slot 202 .

[0023] See also Figure 2-4In this embodiment, the positioning assembly 3 includes a first threaded rod 301, a first bevel gear 302, a second bevel gear 303, a rotating shaft 304, a third bevel gear 305, a fourth bevel gear 306, a second threaded rod 307, a push block 308, a limit block 309, a slide rail 310, and a slider 311; the first threaded rod 301 is gap-fitted on the other side of the fixed frame 102; the first bevel gear 302 is fixedly connected to one side of the first threaded rod 301; and the second bevel gear 303 is meshed on one side of the first bevel gear 302. The first threaded rod 301 is screwed to rotate the second bevel gear 303, the rotating shaft 304, and the third bevel gear 305 through the first bevel gear 302, thereby rotating the fourth bevel gear 306 and the second threaded rod 307. The second bevel gear 303 is fixed with a rotating shaft 304; the upper and lower ends of the rotating shaft 304 are fixed with a third bevel gear 305; one side of the third bevel gear 305 is meshed with a fourth bevel gear 306; one side of the fourth bevel gear 306 is fixed with a second threaded rod 307, and the second threaded rod 307 is clearance-matched with the fixed frame 102; one side of the second threaded rod 307 is rotatably connected with a push block 308. The upper and lower ends of the fixed frame 102 are fixed with a slide rail 310, and a slider 311 rotatably connected to the rotating shaft 304 is slidably connected in the slide rail 310; the rotating shaft 304 and the first threaded rod 301 are rotatably connected to a limited block 309, and the rotating shaft 304 and the second threaded rod 307 are also rotatably connected to the limited block 309. Because the limiting block 309 makes the first bevel gear 302 always mesh with the second bevel gear 303, and makes the third bevel gear 305 always mesh with the fourth bevel gear 306, after the first threaded rod 301 is screwed, the rotating shaft 304 slides left and right on the slide rail 310 with the slider 311 under the push of the first threaded rod 301, and the first threaded rod 301 and the second threaded rod 307 are displaced left and right in the fixed frame 102, thereby making the push block 308 displace left and right, so that one end of the push block 308 can be pushed into the positioning groove 404 to clamp the transparent lampshade 401. The lampshade assembly 4 includes a transparent lampshade 401, a docking block 402, a clamping block 403, and a positioning groove 404; the clamping block 403 is docked in the clamping groove 202; the front end of the clamping block 403 is fixedly connected to the docking block 402; the transparent lampshade 401 is fixedly connected to the docking block 402; the clamping block 403 is provided on both sides of the transparent lampshade 401.

[0024] During operation, the transparent lampshade 401 is moved to make the docking block 402 enter the docking groove 201, so that the transparent lampshade 401 and the main frame are docked, and then the transparent lampshade 401 is pushed further; the clamping block 403 is clamped in the clamping groove 202, so that the transparent lampshade 401 can be clamped on the fixing frame 102, thereby simplifying the preliminary step of positioning the plastic lampshade when installing the plastic lampshade;

[0025] Then, the first threaded rod 301 is screwed to rotate the second bevel gear 303, the rotating shaft 304 and the third bevel gear 305 through the first bevel gear 302, thereby rotating the fourth bevel gear 306 and the second threaded rod 307;

[0026] Because the limit block 309 keeps the first bevel gear 302 and the second bevel gear 303 always meshed, and keeps the third bevel gear 305 and the fourth bevel gear 306 always meshed, after the first threaded rod 301 is screwed, the rotating shaft 304 slides left and right on the slide rail 310 as the slider 311 is pushed by the first threaded rod 301, and the first threaded rod 301 and the second threaded rod 307 are displaced left and right in the fixed frame 102 together, thereby causing the push block 308 to displace left and right, so that one end of the push block 308 can be pushed into the positioning groove 404 to clamp the transparent lampshade 401; this allows the staff to clamp the entire plastic lampshade by only twisting the threaded rod twice, which not only makes it convenient for the staff to install the plastic lampshade, but also makes it convenient for the staff to disassemble and replace it.

[0027] Through the above steps, the preliminary docking limit device and the secondary fastening device are set, which can make the plastic lampshade easier to dock with the main frame when being installed, and the preliminary fixation will be completed at the same time when the docking is completed. Subsequently, the entire plastic lampshade can be clamped by twisting the threaded rod twice, which not only makes it convenient for the staff to install the plastic lampshade, but also makes it convenient for the staff to disassemble and replace it.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A device for connecting and fixing a plastic lampshade of an LED display screen, comprising a frame assembly (1); characterized in that: It also comprises a docking assembly (2), a positioning assembly (3) and a lampshade assembly (4); the frame assembly (1) is provided with a docking assembly (2) for docking with the lampshade; the frame assembly (1) is provided with a positioning assembly (3) for fixing the lampshade; and the lampshade assembly (4) is docked with the docking assembly (2).

2. The LED display screen plastic lampshade connection and fixing device according to claim 1, characterized in that: The frame assembly (1) comprises a mounting bracket (101) and a fixing frame (102); the fixing frames (102) are fixedly connected to both sides of the mounting bracket (101).

3. The LED display screen plastic lampshade connection and fixing device according to claim 2, characterized in that: The docking assembly (2) comprises a docking groove (201), a clamping groove (202), and a slide groove (203); a docking groove (201) is provided on one side of the fixed frame (102); a clamping groove (202) is provided at the rear end of the docking groove (201); and a slide groove (203) is provided inside the fixed frame (102).

4. The LED display screen plastic lampshade connection and fixing device according to claim 2, characterized in that: The positioning assembly (3) comprises a first threaded rod (301), a first bevel gear (302), a second bevel gear (303), a rotating shaft (304), a third bevel gear (305), a fourth bevel gear (306), a second threaded rod (307), a push block (308), a limit block (309), a slide rail (310), and a slide block (311); the first threaded rod (301) is loosely fitted on the other side of the fixed frame (102); the first bevel gear (302) is fixedly connected to one side of the first threaded rod (301); and the second bevel gear (303) is meshed with one side of the first bevel gear (302).

5. The LED display screen plastic lampshade connection and fixing device according to claim 4, characterized in that: The second bevel gear (303) is fixedly connected to a rotating shaft (304); the upper and lower ends of the rotating shaft (304) are both fixedly connected to A third bevel gear (305); one side of the third bevel gear (305) is meshed with a fourth bevel gear (306); one side of the fourth bevel gear (306) is fixedly connected with a second threaded rod (307), and the second threaded rod (307) is clearance-matched with the fixed frame (102); one side of the second threaded rod (307) is rotatably connected with a push block (308).

6. The LED display screen plastic lampshade connection and fixing device according to claim 2, characterized in that: The upper and lower ends of the fixed frame (102) are fixedly connected with a slide rail (310), and a slider (311) rotatably connected to the rotating shaft (304) is slidably connected inside the slide rail (310); the rotating shaft (304) and the first threaded rod (301) are rotatably connected to a limit block (309), and the rotating shaft (304) and the second threaded rod (307) are also rotatably connected to a limit block (309).

7. The LED display screen plastic lampshade connection and fixing device according to claim 3, characterized in that: The lampshade assembly (4) comprises a transparent lampshade (401), a docking block (402), a clamping block (403), and a positioning groove (404); the clamping block (403) is docked in the clamping groove (202); the front end of the clamping block (403) is fixedly connected to the docking block (402); the transparent lampshade (401) is fixedly connected to the docking block (402); and the clamping blocks (403) are provided on both sides of the transparent lampshade (401).

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