LED display screen with protective structure

Abstract

The LED display screen with the protection structure comprises a fixed base, a protection shell is fixedly installed in the middle of the fixed base, an observation window is arranged on the upper half portion of the front face of the protection shell, and guide sliding rods are fixedly installed on the two sides of the interior of the protection shell; the guide sliding rods are slidably connected with a lifting plate located in the protective shell in a penetrating mode, a display screen body is fixedly installed on the top of the lifting plate, sliding bases are fixedly installed on the two sides of the display screen body, and the middles of the sliding bases are slidably connected with the guide sliding rods in a penetrating mode. According to the LED display screen with the protection structure, external foreign matter firstly collides with a transparent plate, a protection partition plate moves along a limiting column, the protection partition plate extrudes and abuts against a spring to contract, and therefore the buffering effect can be achieved, and the protection partition plate can play a role in protecting the display screen body; and the display screen can be protected from being damaged due to collision.

Description

Technical Field

[0001] The invention relates to the technical field of LED display screens, in particular to an LED display screen with a protective structure. Background Art

[0002] LED screen is a new type of imaging electronic device made of light-emitting diodes arranged in sequence. Due to its high brightness, wide viewing angle, long life and other characteristics, it is being widely used in outdoor advertising screens and other products. The use of LED light sources for lighting will first replace power-consuming incandescent lamps, and then gradually enter the entire lighting market, which will save a lot of electricity. Recently, white LEDs have reached a single power consumption of more than 1 watt and a light output of 25 lumens, which has also increased its practicality.

[0003] Existing LED display screens are usually installed in open-air environments. Since LED display screens are relatively fragile, they are easily damaged when the front end of the LED display screen is hit by external force, and are difficult to repair. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides an LED display screen with a protective structure, comprising a fixed base, a protective shell is fixedly installed in the middle of the fixed base, an observation window is opened in the upper half of the front side of the protective shell, guide slide bars are fixedly installed on both sides of the interior of the protective shell, the guide slide bars penetrate and are slidably connected with a lifting plate located inside the protective shell, a display screen body is fixedly installed on the top of the lifting plate, sliding seats are fixedly installed on both sides of the display screen body, the middle part of the sliding seat penetrates and is slidably connected with the guide slide bar, a limiting column located on one side of the guide slide bar is fixedly installed inside the protective shell, the limiting column penetrates and is slidably connected with a protective partition located on the rear side of the observation window, and the outer sleeve of the limiting column is provided with a tightening spring located on the rear side of the protective partition.

[0005] Preferably, the protective baffle is located inside the protective shell, the size of the protective baffle is larger than the size of the observation window, the protective baffle is a transparent acrylic plate, the protective baffle is located in front of the display body, one end of the clamping spring is in tight contact with the rear side of the protective baffle, the other end of the clamping spring is in tight contact with the rear end of the limit column, the size of the display screen body is smaller than the size of the observation window, and the height of the protective shell is greater than twice the height of the observation window.

[0006] Preferably, a shock-absorbing baffle is fixedly installed inside the protective shell, the bottom of the guide slide rod is fixedly installed at both ends of the top of the shock-absorbing baffle, the interior of the protective shell is rotatably connected to a rotating shaft located below the shock-absorbing baffle, a winding drum is fixedly installed in the middle of the rotating shaft, and a connecting belt is fixedly wrapped around the outer circumference of the winding drum.

[0007] Preferably, the other end of the connecting belt is fixedly installed at the top of the display screen main body. A deflecting roller is rotatably connected to the top inside the protective housing. The middle part of the connecting belt is in transmission connection with the deflecting roller, and the connecting belt penetrates through the shock-absorbing partition board.

[0008] Preferably, insertion shafts are integrally provided at both ends of the rotating shaft. The two insertion shafts are rotatably connected through the two sides of the protective housing. The ends of the insertion shafts are flush with the outer side of the protective housing. Hexagonal grooves are provided at the ends of the insertion shafts. A ratchet wheel is fixedly installed on the rotating shaft between adjacent winding drums. A sliding groove is fixedly installed at the bottom of the shock-absorbing partition board directly above the ratchet wheel. A pawl is slidably connected inside the sliding groove. One end of the pawl abuts against the top of the ratchet wheel. A pull rope is fixedly installed on the front surface of the pawl. The other end of the pull rope is fixedly installed at the bottom of the protective partition board.

[0009] Preferably, a limiting roller is rotatably connected inside the protective housing below the observation window. The pull rope passes through the gap between the limiting roller and the inner wall of the protective housing, and the pull rope penetrates through the middle part of the shock-absorbing plate.

[0010] Preferably, a clamping spring is sleeved outside the pull rope. One end of the clamping spring is in abutting contact with the front surface of the pawl, and the other end of the clamping spring is in abutting contact with the inside of the sliding groove.

[0011] Preferably, a pressing spring is sleeved outside the guiding slide rod. The top of the pressing spring is in abutting contact with the top inside the protective housing, and the bottom of the pressing spring is in abutting contact with the top of the sliding seat.

[0012] Preferably, a buffer assembly is provided at the bottom of the lifting plate. The buffer assembly includes a swing rod rotatably connected to the bottom of the lifting plate. The other end of the swing rod is rotatably connected with a roller. A tension spring is provided in the middle of the swing rod. The two swing rods are symmetrically arranged in a group. The two ends of the tension spring are respectively fixedly installed at the middle parts of the opposite surfaces of the two swing rods.

[0013] Preferably, the size of the lifting plate is smaller than the size inside the protective housing, and the outer side surface of the lifting plate does not contact the inside of the protective housing.

[0014] The beneficial effects of the present invention are embodied in:

[0015] 1. The LED display screen with a protection structure drives the insertion shaft to rotate through a hexagonal wrench, and then drives the rotating shaft to rotate, so that the winding reel winds the connecting belt, and the connecting belt pulls the display screen body to rise along the guiding slide bar to the observation window. The transparent protection partition arranged inside the observation window protects the display screen body. Foreign objects outside first collide with the transparent board, and the protection partition moves along the limiting column, and the protection partition squeezes and compresses the spring to contract, so as to play a buffering role, and the protection partition can protect the display screen body and also protect the display screen from being damaged by collision.

[0016] 2. The LED display screen with a protection structure is provided with a ratchet wheel and a pawl. When the protection partition is subjected to a large impact and moves along the limiting column, it pulls the pull rope, and the pull rope pulls the pawl to slide in the sliding groove, so that the pawl is disengaged from the ratchet wheel, and then the rotating shaft and the winding reel can rotate freely. At the same time, under the action of the pressing spring, the sliding seat drives the display screen body to move downward, and the display screen body moves into the protection shell below the observation window to prevent the display screen body from being damaged by a large impact.

[0017] 3. The LED display screen with a protection structure is provided with a buffer assembly. When the display screen body moves downward, under the action of the pressing spring, the moving speed is relatively fast. The roller in the buffer assembly first contacts the shock-absorbing partition. As the display screen body continues to move downward, the roller rolls, so that the included angle between the two swing rods in the buffer assembly increases, and then the tension spring is stretched to buffer the impact force during the downward movement of the display screen body. By setting the buffer assembly for buffering, the impact on the display screen body caused by the relatively fast moving speed is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the protection shell of the present invention;

[0021] Figure 3 It is of the present invention Figure 2 The enlarged view of part A in

[0022] Figure 4 It is of the present inventionFigure 2 Enlarged view of B

[0023] Figure 5 Structural schematic diagram of the rotating shaft of the present invention

[0024] Figure 6 Of the present invention Figure 5 Enlarged view of C

[0025] Figure 7 Of the present invention Figure 5 Enlarged view of D

[0026] Figure 8 Partial structural schematic diagram of the shock-absorbing partition of the present invention

[0027] Figure 9 Of the present invention Figure 8 Enlarged view of E

[0028] Figure 10 Of the present invention Figure 8 Enlarged view of F

[0029] In the drawings: 1, fixed base; 2, protective housing; 3, observation window; 4, guiding slide bar; 5, lifting plate; 6, display screen main body; 7, sliding seat; 8, downward pressing spring; 9, limiting column; 10, abutting spring; 11, protective partition; 12, rotating shaft; 13, winding drum; 14, inserting shaft; 15, connecting belt; 16, shock-absorbing partition; 17, buffer assembly; 1701, swinging rod; 1702, roller; 1703, tension spring; 18, sliding groove; 19, ratchet wheel; 20, deflecting roller; 21, pawl; 22, pulling rope; 23, clamping spring; 24, limiting roller. Detailed implementation manners

[0030] Hereinafter, embodiments of the technical solutions of the present invention will be described in detail with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0031] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present invention belongs.

[0032] Please refer to Figures 1 to 10, an LED display screen with a protective structure, including a fixed base 1. A protective housing 2 is fixedly installed in the middle of the fixed base 1. An observation window 3 is opened in the upper half of the front of the protective housing 2. Guide slide rods 4 are fixedly installed on both sides inside the protective housing 2. A lifting plate 5 located inside the protective housing 2 is slidably connected through the guide slide rods 4. A display screen main body 6 is fixedly installed on the top of the lifting plate 5. Sliding seats 7 are fixedly installed on both sides of the display screen main body 6. The middle of the sliding seats 7 is slidably connected through the guide slide rods 4. A limit post 9 is fixedly installed inside the protective housing 2 on one side of the guide slide rods 4. A protective partition 11 located behind the observation window 3 is slidably connected through the limit post 9. A pressing spring 10 is sleeved on the outside of the limit post 9 behind the protective partition 11. By setting the lifting plate 5 and the rotating shaft 12, turning the insertion shaft 14 with a hex wrench drives the rotating shaft 12 to rotate, so that the winding drum 13 winds up the connecting belt 15, causing the connecting belt 15 to pull the display screen main body 6 to rise along the guide slide rods 4 to the observation window 3. The transparent protective partition 11 arranged inside the observation window 3 protects the display screen main body 6. Foreign objects outside first collide with the transparent plate, and the protective partition 11 moves along the limit post 9, and the protective partition 11 squeezes the pressing spring 10 to contract, which can play a buffering role, and the protective partition 11 can protect the display screen main body 6 and can also protect the display screen from being damaged by collision.

[0033] As an implementation manner of the present invention, the protective partition 11 is located inside the protective housing 2. The size of the protective partition 11 is larger than that of the observation window 3. The protective partition 11 is a transparent acrylic plate. The protective partition 11 is located in front of the display main body. One end of the pressing spring 10 is in tight contact with the rear side of the protective partition 11, and the other end of the pressing spring 10 is in tight contact with the rear end of the limit post 9. The size of the display screen main body 6 is smaller than that of the observation window 3. The height of the protective housing 2 is more than twice the height of the observation window 3.

[0034] As an implementation manner of the present invention, a shock-absorbing partition 16 is fixedly installed inside the protective housing 2. The bottom of the guide slide rods 4 is fixedly installed at both ends of the top of the shock-absorbing partition 16. A rotating shaft 12 located below the shock-absorbing partition 16 is rotatably connected inside the protective housing 2. A winding drum 13 is fixedly installed in the middle of the rotating shaft 12. A connecting belt 15 is fixedly wound around the outer peripheral surface of the winding drum 13.

[0035] As an implementation manner of the present invention, the other end of the connecting belt 15 is fixedly installed on the top of the display screen main body 6. A deflecting roller 20 is rotatably connected to the top inside the protective housing 2. The middle of the connecting belt 15 is in transmission connection with the deflecting roller 20. The connecting belt 15 is arranged through the shock-absorbing partition 16.

[0036] As an implementation manner of the present invention, plug shafts 14 are integrally provided at both ends of the rotating shaft 12. The two plug shafts 14 are rotatably connected through both sides of the protective housing 2. The ends of the plug shafts 14 are flush with the outer side of the protective housing 2. Hexagonal grooves are provided at the ends of the plug shafts 14. A ratchet wheel 19 is fixedly installed on the rotating shaft 12 between adjacent winding drums 13. A sliding groove 18 is fixedly installed at the bottom of the shock-absorbing partition 16 directly above the ratchet wheel 19. A pawl 21 is slidably connected inside the sliding groove 18. One end of the pawl 21 abuts against the top of the ratchet wheel 19. A pull rope 22 is fixedly installed on the front surface of the pawl 21. The other end of the pull rope 22 is fixedly installed at the bottom of the protective partition 11.

[0037] As an implementation manner of the present invention, a limiting roller 24 is rotatably and fixedly connected inside the protective housing 2 below the observation window 3. The pull rope 22 passes through the gap between the limiting roller 24 and the inner wall of the protective housing 2. The pull rope 22 is disposed through the middle of the shock-absorbing plate.

[0038] As an implementation manner of the present invention, a clamping spring 23 is sleeved outside the pull rope 22. One end of the clamping spring 23 is in abutting contact with the front surface of the pawl 21. The other end of the clamping spring 23 is in abutting contact with the inside of the sliding groove 18. By providing the ratchet wheel 19 and the pawl 21, when the protective partition 11 is subjected to a large impact, when the protective partition 11 moves along the limiting column 9, the pull rope 22 is pulled, so that the pull rope 22 pulls the pawl 21 to slide in the sliding groove 18, so that the pawl 21 is disengaged and separated from the ratchet wheel 19, and then the rotating shaft 12 and the winding drum 13 can rotate freely. At the same time, under the action of the pressing spring 8, the sliding seat 7 drives the display screen main body 6 to move downward, so that the display screen main body 6 moves into the protective housing 2 below the observation window 3 to prevent a large impact from damaging the display screen main body 6.

[0039] As an implementation manner of the present invention, a pressing spring 8 is sleeved outside the guiding slide rod 4. The top of the pressing spring 8 is in abutting contact with the inner top of the protective housing 2. The bottom of the pressing spring 8 is in abutting contact with the top of the sliding seat 7.

[0040] As an implementation manner of the present invention, a buffer assembly 17 is provided at the bottom of the lifting plate 5. The buffer assembly 17 includes a swing rod 1701 rotatably connected to the bottom of the lifting plate 5. The other end of the swing rod 1701 is rotatably connected to a roller 1702. A tension spring 1703 is provided in the middle of the swing rod 1701. Two swing rods 1701 are symmetrically arranged as a group. The two ends of the tension spring 1703 are fixedly installed at the middle parts of the opposite surfaces of the two swing rods 1701 respectively. By providing the buffer assembly 17, when the display screen main body 6 moves downward, under the action of the pressing spring 8, the moving speed is relatively fast. The roller 1702 in the buffer assembly 17 first contacts the shock-absorbing partition plate 16. As the display screen main body 6 continues to move downward, the roller 1702 rolls, causing the included angle between the two swing rods 1701 in the buffer assembly 17 to increase, and further causing the tension spring 1703 to be stretched, buffering the impact force during the downward movement of the display screen main body 6. By providing the buffer assembly 17 for buffering, the impact on the display screen main body 6 caused by the relatively fast moving speed is reduced.

[0041] As an implementation manner of the present invention, the size of the lifting plate 5 is smaller than the size inside the protective housing 2, and the outer side surface of the lifting plate 5 does not contact the inside of the protective housing 2.

[0042] It should be noted that during use, the hexagonal wrench is used to drive the rotation of the insertion shaft 14, which in turn drives the rotation of the rotating shaft 12, causing the winding drum 13 to wind the connecting belt 15. As a result, the connecting belt 15 pulls the display screen main body 6 to rise along the guiding slide rod 4 to the observation window 3. The transparent protective partition 11 provided inside the observation window 3 protects the display screen main body 6. Foreign objects outside first collide with the transparent plate, and the protective partition 11 moves along the limit post 9. The protective partition 11 squeezes and compresses the abutting spring 10 to contract, thereby being able to play a buffering role. Moreover, the protective partition 11 can protect the display screen main body 6 and prevent the display screen from being damaged by collision. When the protective partition 11 is subjected to a relatively large impact, when the protective partition 11 moves along the limit post 9, it pulls the pull rope 22, causing the pull rope 22 to pull the pawl 21 to slide in the sliding groove 18, so that the pawl 21 is disengaged and separated from the ratchet wheel 19. As a result, the rotating shaft 12 and the winding drum 13 can rotate freely. At the same time, under the action of the downward pressure spring 8, the sliding seat 7 drives the display screen main body 6 to move downward, moving the display screen main body 6 into the protective housing 2 below the observation window 3 to prevent a relatively large impact from damaging the display screen main body 6. When the display screen main body 6 moves downward, under the action of the downward pressure spring 8, the moving speed is relatively fast. The roller 1702 in the buffer assembly 17 first contacts the shock-absorbing partition 16. As the display screen main body 6 continues to move downward, the roller 1702 rolls, causing the included angle between the two swing rods 1701 in the buffer assembly 17 to increase. As a result, the tension spring 1703 is stretched to buffer the impact force during the downward movement of the display screen main body 6. By providing the buffer assembly 17 for buffering, the impact on the display screen main body 6 caused by the relatively fast moving speed is reduced.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features. However, such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and the description of the present invention.

Claims

1. An LED display screen with a protective structure, comprising a fixed base (1), characterized in that: A protective housing (2) is fixedly installed in the middle of the fixed base (1). An observation window (3) is provided in the upper half of the front surface of the protective housing (2). Guide slide rods (4) are fixedly installed on both sides inside the protective housing (2). A lifting plate (5) located inside the protective housing (2) is slidably connected through the guide slide rods (4). A display screen main body (6) is fixedly installed at the top of the lifting plate (5). Sliding seats (7) are fixedly installed on both sides of the display screen main body (6). The middle part of the sliding seat (7) is slidably connected through the guide slide rods (4). A limiting column (9) is fixedly installed inside the protective housing (2) on one side of the guide slide rods (4). A protective partition plate (11) located behind the observation window (3) is slidably connected through the limiting column (9). A pressing spring (10) is sleeved outside the limiting column (9) and located behind the protective partition plate (11).

2. The LED display screen with a protection structure according to claim 1, characterized in that: The protective partition plate (11) is located inside the protective housing (2). The size of the protective partition plate (11) is larger than that of the observation window (3). The protective partition plate (11) is a transparent acrylic plate. The protective partition plate (11) is located in front of the display main body. One end of the pressing spring (10) is in pressing contact with the rear side of the protective partition plate (11). The other end of the pressing spring (10) is in pressing contact with the rear end of the limiting column (9). The size of the display screen main body (6) is smaller than that of the observation window (3). The height of the protective housing (2) is more than twice the height of the observation window (3).

3. The LED display screen with a protection structure according to claim 1, characterized in that: A shock-absorbing partition plate (16) is fixedly installed inside the protective housing (2). The bottom of the guide slide rods (4) is fixedly installed at both ends of the top of the shock-absorbing partition plate (16). A rotating shaft (12) located below the shock-absorbing partition plate (16) is rotatably connected inside the protective housing (2). A winding drum (13) is fixedly installed in the middle of the rotating shaft (12). A connecting belt (15) is fixedly wound around the outer peripheral surface of the winding drum (13).

4. The LED display screen with a protection structure according to claim 3, characterized in that: The other end of the connecting belt (15) is fixedly installed at the top of the display screen main body (6). A deflecting roller (20) is rotatably connected to the top inside the protective housing (2). The middle part of the connecting belt (15) is in transmission connection with the deflecting roller (20). The connecting belt (15) is arranged through the shock-absorbing partition plate (16).

5. The LED display screen with a protection structure according to claim 3, characterized in that: Both ends of the rotating shaft (12) are integrally provided with plug shafts (14). The two plug shafts (14) are rotatably connected through both sides of the protective housing (2). The ends of the plug shafts (14) are flush with the outer side of the protective housing (2). Hexagonal grooves are provided at the ends of the plug shafts (14). A ratchet wheel (19) is fixedly installed on the rotating shaft (12) and located between adjacent winding drums (13). A sliding groove (18) is fixedly installed at the bottom of the shock-absorbing partition (16) and directly above the ratchet wheel (19). A pawl (21) is slidably connected inside the sliding groove (18). One end of the pawl (21) abuts against the top of the ratchet wheel (19). A pull rope (22) is fixedly installed on the front of the pawl (21). The other end of the pull rope (22) is fixedly installed on the bottom of the protective partition (11).

6. The LED display screen with a protection structure according to claim 5, characterized in that: A limiting roller (24) is rotatably connected inside the protective housing (2) and located below the observation window (3). The pull rope (22) passes through the gap between the limiting roller (24) and the inner wall of the protective housing (2). The pull rope (22) is disposed through the middle of the shock-absorbing plate.

7. The LED display screen with a protection structure according to claim 6, characterized in that: A clamping spring (23) is sleeved outside the pull rope (22). One end of the clamping spring (23) is in abutting contact with the front of the pawl (21). The other end of the clamping spring (23) is in abutting contact with the inside of the sliding groove (18).

8. An LED display screen with a protection structure according to claim 1, characterized in that: A pressing spring (8) is sleeved outside the guiding slide rod (4). The top of the pressing spring (8) is in abutting contact with the inner top of the protective housing (2). The bottom of the pressing spring (8) is in abutting contact with the top of the sliding seat (7).

9. The LED display screen with a protection structure according to claim 1, wherein: A buffer assembly (17) is disposed at the bottom of the lifting plate (5). The buffer assembly (17) includes a swing rod (1701) rotatably connected to the bottom of the lifting plate (5). The other end of the swing rod (1701) is rotatably connected to a roller (1702). A tension spring (1703) is disposed in the middle of the swing rod (1701). The two swing rods (1701) are symmetrically arranged in a group. The two ends of the tension spring (1703) are respectively fixedly installed at the middle parts of the opposite faces of the two swing rods (1701).

10. The LED display screen with a protection structure according to claim 9, characterized in that: The size of the lifting plate (5) is smaller than the size inside the protective housing (2). The outer side of the lifting plate (5) does not contact the inside of the protective housing (2).

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