Angle-adjustable LED light guide plate

Abstract

The invention belongs to the technical field of light guide plates, and discloses an angle-adjustable LED light guide plate which comprises a support, an adjusting mechanism is mounted at the top end of the support, an inflation mechanism is arranged outside the support, a connecting frame is rotatably connected to the interior of the support, a quick release mechanism is arranged at the top end of the support, and a light guide plate body is mounted in the adjusting mechanism. Through cooperation of the mounting disc, the limiting groove, the mounting frame and other structures, the device can fix the light guide plate body in the mounting frame through two sets of clamps arranged in the mounting frame, the mounting frame is rotationally connected with the mounting disc, at the moment, the light guide plate body is rotationally connected with the mounting disc, and auxiliary supporting is conducted through a first connecting rod; the first connecting rod, the mounting frame and the light guide plate body are fixed at the current angle, and the scale marks are arranged on the outer wall of the mounting disc, so that a user can judge the current angle of the light guide plate body by observing the position of the first connecting rod, and then the light guide performance of the light guide plate body at different angles is recorded.

Description

Technical Field

[0001] The invention belongs to the technical field of light guide plates, in particular to an LED light guide plate with adjustable angle. Background Art

[0002] The LED light guide plate is based on optical-grade acrylic and uses LCD display and backlight module technology. Through the full high transmittance of the light guide point, the bottom is printed with laser engraving, V-shaped cross grid engraving or UV screen printing technology. The light stays on the surface of the optical-grade acrylic sheet. When the light hits each light guide point, the reflected light will diffuse to all angles, and then destroy the reflection conditions and emit from the front of the light guide plate. Through various light guide points of different densities and sizes, the light guide plate can emit light evenly, with the characteristics of high luminous efficiency and low power consumption. The light guide point is designed by computer to make the light guide plate line converted into a uniform light state of the surface light source for manufacturing.

[0003] Patent document CN220773317U discloses an angle-adjustable light guide plate, comprising a mounting frame, a mounting groove is provided inside the mounting frame, a rubber strip is fixedly connected to the inner bottom wall of the mounting groove, the top of the rubber strip is movably connected to the light guide plate body, the front of the mounting frame is movably connected to the mounting plate, the bottom end of the cross handle is fixedly connected to an adjusting screw extending into the adjusting groove, the surface of the adjusting screw is threadedly connected to a threaded block, one side of the threaded block is fixedly connected to an adjusting plate extending into the mounting groove, the bottom end of the adjusting plate is fixedly connected to a flexible strip, through the arranged adjustment component, the cross handle is rotated by a tool such as a screwdriver to drive the adjusting screw to rotate, so that the threaded block moves and drives the adjusting plate to descend or ascend, and then the top side of the light guide plate body is pressed down or ascended by the flexible strip, so that the light guide plate body is tilted to achieve its angle adjustment action.

[0004] When the device is in use, the angle of the light guide plate body can be adjusted, but it cannot satisfy the light guide property detection of the light guide plate body. It can only adjust the angle, and does not meet the problem that single light guide cannot meet the demand. By adjusting the angle of the light guide plate body, it is convenient to adjust the angle of entry and emission of the light source, and by adding a rotatable refraction plate, it is convenient to detect the transmittance of the light guide plate when illuminated from different angles. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides an LED light guide plate with adjustable angle.

[0006] To achieve the above object, the present invention provides the following technical solution: an angle-adjustable LED light guide plate, comprising a bracket, an adjustment mechanism is installed at the top of the bracket, an inflation mechanism is arranged outside the bracket, a connecting frame is rotatably connected inside the bracket, a quick release mechanism is arranged at the top of the bracket, and a light guide plate body is installed inside the adjustment mechanism;

[0007] The adjustment mechanism includes a mounting plate, a limiting groove and a mounting frame, wherein the mounting plate is fixed to the top of the bracket, a limiting groove is provided inside the mounting plate, and the mounting frame is movably connected inside the mounting plate;

[0008] The inflation mechanism includes an air pump, a delivery pipe and a limit valve. The air pump is fixed to the outside of the bracket. One end of the air pump is connected to the delivery pipe. The outside of the delivery pipe is provided with a limit valve. One end of the delivery pipe is connected to the air bag.

[0009] The quick release mechanism comprises a refraction plate, a mounting seat and a first limiting rod. The refraction plate is arranged at the top end of the bracket. The mounting seat is fixed to the outside of the refraction plate. The first limiting rod is fixed to the outside of the mounting seat.

[0010] Preferably, a first connecting rod is fixed to the outside of the mounting frame, a second connecting rod is fixed to the top end of the first connecting rod, and a fixing nut is threadedly connected to the top end of the second connecting rod.

[0011] Preferably, the mounting plate is provided with two groups symmetrically distributed about the central axis of the bracket, the limiting groove is in a semicircular arc shape, and the mounting frame and the mounting plate are rotatably connected.

[0012] Preferably, the outer wall of the first connecting rod is close to the inner wall of the limiting groove, the first connecting rod and the limiting groove are slidably connected, the outer wall of the second connecting rod is close to the inner wall of the mounting plate, and the second connecting rod and the mounting plate are slidably connected.

[0013] Preferably, two groups of the limit valves and the airbags are provided, the limit valves and the airbags are symmetrically distributed about the central axis of the air pump, and one end of the delivery tube is connected to the airbag.

[0014] Preferably, a first limiting plate is fixed to the outside of the first limiting rod, a second limiting plate is movably connected to the outside of the first limiting rod, a second limiting rod is movably connected to the inside of the connecting frame, a return spring is sleeved on the outside of the second limiting rod, and a limiting block is fixed to the outside of the second limiting rod.

[0015] Preferably, two groups of mounting seats are provided, the mounting seats are symmetrically distributed about the central axis of the refraction plate, the outer wall of the first limiting rod is close to the inner wall of the second limiting plate, and the first limiting rod is slidably connected to the second limiting plate.

[0016] Preferably, the diameter of the second limiting plate is larger than that of the first limiting plate, two groups of second limiting rods are provided, the second limiting rods are symmetrically distributed about the central axis of the mounting seat, the outer wall of the second limiting rods is close to the inner wall of the connecting frame, and the second limiting rods and the connecting frame are slidably connected.

[0017] Preferably, the return spring is used to squeeze the second limiting rod and the limiting block and keep them moving inwards, and one end of the limiting block is arranged as an inclined surface.

[0018] Preferably, two groups of the connecting frames are provided, the connecting frames are symmetrically distributed about the central axis of the bracket, and the light guide plate body is provided and connected inside the mounting frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention arranges a mounting plate, a limit groove, a mounting frame and other structures in coordination, so that the device can fix the light guide plate body inside the mounting frame through two sets of clamps arranged inside the mounting frame. Since the mounting frame and the mounting plate are rotatably connected, the light guide plate body and the mounting plate are rotatably connected at this time, and auxiliary support is provided by the first connecting rod, so that the first connecting rod, the mounting frame and the light guide plate body are fixed at the current angle, and the outer wall of the mounting plate is provided with scale lines, so that the user can judge the current angle of the light guide plate body by observing the position of the first connecting rod, and then record the light guiding property of the light guide plate body at different angles.

[0021] The present invention cooperates with structures such as the refraction plate, the mounting seat, and the first limiting rod, so that the device can be provided with two groups of mounting seats outside the refraction plate. When it is necessary to detect the refraction and light guiding performance of the light guide plate main body, the refraction plate is inserted into the connecting frame so that the first limiting plate squeezes the limiting block. After the limiting block contracts, the first limiting plate passes. At this time, the reset spring resets the limiting block so that the limiting block is located at the bottom end of the first limiting plate, and then the first limiting plate is limited by the limiting block. When removal is required, the refraction plate can be removed by continuing to press it, so that the user can quickly remove the refraction plate and record the light guiding performance of the light guide plate main body.

[0022] The present invention arranges the coordination of structures such as an air pump, a delivery pipe, and a limit valve, so that the device can start the air pump to supply air to the delivery pipe and the inside of the airbag, so that the airbag swells and then contacts the refraction plate, so that the refraction plate rotates with the connecting frame, and then the angle of the refraction plate is changed. Furthermore, since two groups of refraction plates are provided, by arranging a limit valve, the user can freely select the refraction plate whose angle needs to be adjusted, which is convenient for improving the efficiency of the user in detecting and recording the refractive light-guiding property of the light guide plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the overall angle adjustment state structure of the present invention;

[0025] Figure 3 It is a partial structural schematic diagram of the regulating mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the enlarged structure of the regulating mechanism of the present invention;

[0027] Figure 5 It is a schematic diagram of the overall left-side structure of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the inflation mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the quick release mechanism of the present invention.

[0030] In the figure: 1. bracket; 2. adjustment mechanism; 201. mounting plate; 202. limiting groove; 203. mounting frame; 204. first connecting rod; 205. second connecting rod; 206. fixing nut; 3. inflation mechanism; 301. air pump; 302. delivery pipe; 303. limiting valve; 304. air bag; 4. connecting frame; 5. quick release mechanism; 501. refraction plate; 502. mounting seat; 503. first limiting rod; 504. first limiting plate; 505. second limiting plate; 506. second limiting rod; 507. reset spring; 508. limiting block; 6. light guide plate body. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 7 As shown, the present invention provides an LED light guide plate with adjustable angle, including a bracket 1, an adjusting mechanism 2 is installed on the top of the bracket 1, an inflation mechanism 3 is arranged on the outside of the bracket 1, a connecting frame 4 is rotatably connected to the inside of the bracket 1, a quick release mechanism 5 is arranged on the top of the bracket 1, a light guide plate body 6 is installed inside the adjusting mechanism 2, two groups of connecting frames 4 are arranged, and the connecting frames 4 are symmetrically distributed about the central axis of the bracket 1, and the light guide plate body 6 is arranged and connected to the inside of the mounting frame 203.

[0033] The above scheme is adopted: after the light source enters the light guide plate body 6 from both sides or one side, the light guide points distribute the light evenly to the entire surface through the combined effect of diffuse reflection and direct penetration. The light guide points close to the light source are sparse and small, and the middle area is dense and thick, so as to balance the brightness difference.

[0034] like Figures 1 to 7 As shown, the adjustment mechanism 2 includes a mounting plate 201, a limiting groove 202 and a mounting frame 203. The mounting plate 201 is fixed to the top of the bracket 1. The limiting groove 202 is provided inside the mounting plate 201. The mounting frame 203 is movably connected inside the mounting plate 201. The mounting plate 201 is provided with two groups of symmetrically distributed about the central axis of the bracket 1. The limiting groove 202 is in the shape of a semicircular arc. The mounting frame 203 and the mounting plate 201 are rotatably connected.

[0035] like Figures 1 to 7 As shown, a first connecting rod 204 is fixed to the outside of the mounting frame 203, a second connecting rod 205 is fixed to the top of the first connecting rod 204, a fixing nut 206 is threadedly connected to the top of the second connecting rod 205, an outer wall of the first connecting rod 204 is close to the inner wall of the limiting groove 202, the first connecting rod 204 and the limiting groove 202 are slidably connected, an outer wall of the second connecting rod 205 is close to the inner wall of the mounting plate 201, and the second connecting rod 205 and the mounting plate 201 are slidably connected.

[0036] The above scheme is adopted: the light guide plate body 6 is fixed inside the mounting frame 203 by two sets of clamps arranged inside the mounting frame 203. Since the mounting frame 203 and the mounting disk 201 are rotatably connected, the light guide plate body 6 and the mounting disk 201 are rotatably connected at this time, and auxiliary support is provided by the first connecting rod 204. After adjusting to the specified angle, the second connecting rod 205 is fixed at the current position by rotating the fixing nut 206, and then the first connecting rod 204, the mounting frame 203 and the light guide plate body 6 are fixed at the current angle, and the outer wall of the mounting disk 201 is provided with scale lines, so that the user can judge the current angle of the light guide plate body 6 by observing the position of the first connecting rod 204, and then record the light guiding property of the light guide plate body 6 at different angles.

[0037] like Figures 1 to 7 As shown, the inflation mechanism 3 includes an air pump 301, a delivery pipe 302 and a limit valve 303. The air pump 301 is fixed to the outside of the bracket 1. One end of the air pump 301 is connected to the delivery pipe 302. A limit valve 303 is arranged on the outside of the delivery pipe 302. One end of the delivery pipe 302 is connected to an airbag 304. Two groups of limit valves 303 and airbags 304 are arranged. The limit valves 303 and airbags 304 are symmetrically distributed about the central axis of the air pump 301. One end of the delivery pipe 302 is connected to the airbag 304.

[0038] The above scheme is adopted: by starting the air pump 301 to supply air to the inside of the delivery tube 302 and the air bag 304, the air bag 304 swells and then contacts the refraction plate 501, so that the refraction plate 501 rotates along with the connecting frame 4, and then the angle of the refraction plate 501 is changed. Since two groups of refraction plates 501 are provided, the path of air supply is restricted by providing a limit valve 303, so that the user can freely select the refraction plate 501 whose angle needs to be adjusted.

[0039] like Figures 1 to 7 As shown, the quick release mechanism 5 includes a refraction plate 501, a mounting seat 502 and a first limiting rod 503. The refraction plate 501 is arranged at the top end of the bracket 1. The mounting seat 502 is fixed to the outside of the refraction plate 501. The first limiting rod 503 is fixed to the outside of the mounting seat 502. The first limiting disk 504 is fixed to the outside of the first limiting rod 503. The outside of the first limiting rod 503 is movably connected with the second limiting disk 505. The mounting seat 502 is provided with two groups. The mounting seats 502 are symmetrically distributed about the central axis of the refraction plate 501. The outer wall of the first limiting rod 503 is close to the inner wall of the second limiting disk 505. The first limiting rod 503 and the second limiting disk 505 are slidably connected.

[0040] like Figures 1 to 7 As shown, the connecting frame 4 is internally movably connected with a second limiting rod 506, the diameter of the second limiting plate 505 is larger than the diameter of the first limiting plate 504, two groups of second limiting rods 506 are arranged, the second limiting rods 506 are symmetrically distributed about the central axis of the mounting seat 502, the outer wall of the second limiting rod 506 is close to the inner wall of the connecting frame 4, the second limiting rod 506 and the connecting frame 4 are slidingly connected, the outer sleeve of the second limiting rod 506 is provided with a reset spring 507, the outer fixed limiting block 508 of the second limiting rod 506, the reset spring 507 is used to squeeze the second limiting rod 506 and the limiting block 508, and keep them moving inward, and one end of the limiting block 508 is arranged as an inclined surface.

[0041] The above scheme is adopted: by arranging two groups of mounting seats 502 outside the refraction plate 501, when it is necessary to test the refraction and light guiding performance of the light guide plate body 6, the refraction plate 501 is inserted into the connecting frame 4, so that the first limiting plate 504 squeezes the limiting block 508, and the first limiting plate 504 passes after the limiting block 508 contracts. At this time, the reset spring 507 resets the limiting block 508, so that the limiting block 508 is located at the bottom end of the first limiting plate 504, and then the first limiting plate 504 is limited by the limiting block 508. When it is necessary to remove, the refraction plate 501 is continued to be pressed. The second limiting plate 505 squeezes the limiting block 508. After the limiting block 508 contracts, the second limiting plate 505 passes. At this time, the reset spring 507 resets the limiting block 508 and lifts up the second limiting plate 505 through the reset limiting block 508, so that the second limiting plate 505 contacts the first limiting plate 504. Since the diameter of the second limiting plate 505 is larger than that of the first limiting plate 504, the refraction plate 501 can be removed by pulling the refraction plate 501, so that the user can quickly install the refraction plates 501 with different refractive indices to obtain different experimental data.

[0042] The working principle and use process of the present invention are as follows: the light guide plate body 6 is fixed inside the mounting frame 203 by two sets of clamps provided inside the mounting frame 203. Since the mounting frame 203 and the mounting plate 201 are rotatably connected, the light guide plate body 6 and the mounting plate 201 are rotatably connected at this time, and are supported by the first connecting rod 204. After adjusting to a specified angle, the second connecting rod 205 is fixed at the current position by rotating the fixing nut 206, thereby fixing the first connecting rod 204, the mounting frame 203 and the light guide plate body 6 at the current angle, and the outer wall of the mounting plate 201 is provided with scale lines, so that the user can observe the first connecting rod 205 and the mounting plate 201. The current angle of the light guide plate body 6 is determined by the position of 204, and the light guiding property of the light guide plate body 6 at different angles is then recorded. After the light source enters the light guide plate body 6 from both sides or one side, the light guiding points are evenly distributed to the entire surface through the combined effect of diffuse reflection and direct penetration. The light guiding points close to the light source are sparse and small, while the light guiding points in the middle area are dense and thick, so as to balance the brightness difference. By setting two sets of mounting seats 502 on the outside of the refraction plate 501, when it is necessary to test the refraction and light guiding property of the light guide plate body 6, the refraction plate 501 is inserted into the connecting frame 4, so that the first limiting plate 504 squeezes the limiting block 508. After the limiting block 508 contracts, the first limiting plate 504 is pressed against the limiting block 508. The limiting plate 504 passes through, and the return spring 507 resets the limit block 508, so that the limit block 508 is located at the bottom end of the first limiting plate 504, and then the first limiting plate 504 is limited by the limit block 508. When it needs to be removed, the refraction plate 501 is continued to be pressed, so that the second limiting plate 505 squeezes the limit block 508. After the limit block 508 shrinks, the second limiting plate 505 passes through. At this time, the return spring 507 resets the limit block 508, and lifts the second limiting plate 505 through the reset limit block 508, so that the second limiting plate 505 contacts the first limiting plate 504, and because the diameter of the second limiting plate 505 is larger than that of the first limiting plate 504, A limit plate 504 is provided. At this time, the refraction plate 501 can be removed by pulling the refraction plate 501, so that the user can quickly install the refraction plates 501 with different refractive indices to obtain different experimental data. By starting the air pump 301 to supply air to the inside of the delivery tube 302 and the air bag 304, the air bag 304 swells and then contacts the refraction plate 501, so that the refraction plate 501 rotates with the connecting frame 4, and then the angle of the refraction plate 501 is changed. Since two groups of refraction plates 501 are provided, the path of air supply is limited by setting the limit valve 303, so that the user can freely select the refraction plate 501 whose angle needs to be adjusted.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An angle-adjustable LED light guide plate, comprising a bracket (1), characterized in that: The top of the bracket (1) is provided with an adjustment mechanism (2), the outside of the bracket (1) is provided with an inflation mechanism (3), the inside of the bracket (1) is rotatably connected with a connecting frame (4), the top of the bracket (1) is provided with a quick release mechanism (5), and the inside of the adjustment mechanism (2) is provided with a light guide plate body (6); The adjustment mechanism (2) comprises a mounting plate (201), a limiting groove (202) and a mounting frame (203); the mounting plate (201) is fixed to the top end of the bracket (1); the limiting groove (202) is provided inside the mounting plate (201); and the mounting frame (203) is movably connected inside the mounting plate (201); The inflation mechanism (3) comprises an air pump (301), a delivery pipe (302) and a limit valve (303); the air pump (301) is fixed to the outside of the bracket (1); one end of the air pump (301) is connected to the delivery pipe (302); a limit valve (303) is arranged outside the delivery pipe (302); and one end of the delivery pipe (302) is connected to an air bag (304); The quick-release mechanism (5) comprises a refraction plate (501), a mounting seat (502) and a first limiting rod (503); the refraction plate (501) is arranged at the top end of the bracket (1); the mounting seat (502) is fixed to the outside of the refraction plate (501); and the first limiting rod (503) is fixed to the outside of the mounting seat (502).

2. The angle-adjustable LED light guide plate according to claim 1, characterized in that: A first connecting rod (204) is fixed to the outside of the mounting frame (203), a second connecting rod (205) is fixed to the top end of the first connecting rod (204), and a fixing nut (206) is threadedly connected to the top end of the second connecting rod (205).

3. The angle-adjustable LED light guide plate according to claim 1, characterized in that: The mounting plate (201) is provided with two groups of symmetrically distributed grooves about the central axis of the bracket (1); the limiting groove (202) is in the shape of a semicircular arc; and the mounting frame (203) and the mounting plate (201) are rotatably connected.

4. The angle-adjustable LED light guide plate according to claim 2, characterized in that: The outer wall of the first connecting rod (204) is close to the inner wall of the limiting groove (202), and the first connecting rod (204) and the limiting groove (202) are slidably connected. The outer wall of the second connecting rod (205) is close to the inner wall of the mounting plate (201), and the second connecting rod (205) and the mounting plate (201) are slidably connected.

5. The angle-adjustable LED light guide plate according to claim 1, characterized in that: The limit valve (303) and the air bag (304) are provided in two groups. The limit valve (303) and the air bag (304) are symmetrically distributed about the central axis of the air pump (301). One end of the delivery pipe (302) is connected to the air bag (304).

6. The angle-adjustable LED light guide plate according to claim 1, characterized in that: A first limiting plate (504) is fixed to the outside of the first limiting rod (503), a second limiting plate (505) is movably connected to the outside of the first limiting rod (503), a second limiting rod (506) is movably connected to the inside of the connecting frame (4), a return spring (507) is sleeved on the outside of the second limiting rod (506), and a limiting block (508) is fixed to the outside of the second limiting rod (506).

7. The angle-adjustable LED light guide plate according to claim 6, characterized in that: The mounting seats (502) are provided in two groups, and the mounting seats (502) are symmetrically distributed about the central axis of the refraction plate (501), the outer wall of the first limiting rod (503) is close to the inner wall of the second limiting plate (505), and the first limiting rod (503) and the second limiting plate (505) are slidably connected.

8. The angle-adjustable LED light guide plate according to claim 6, characterized in that: The diameter of the second limiting plate (505) is greater than the diameter of the first limiting plate (504), two groups of the second limiting rods (506) are provided, the second limiting rods (506) are symmetrically distributed about the central axis of the mounting seat (502), the outer wall of the second limiting rod (506) is close to the inner wall of the connecting frame (4), and the second limiting rod (506) and the connecting frame (4) are slidably connected.

9. The angle-adjustable LED light guide plate according to claim 6, characterized in that: The return spring (507) is used to squeeze the second limiting rod (506) and the limiting block (508) and keep them moving inwards. One end of the limiting block (508) is arranged as an inclined surface.

10. The angle-adjustable LED light guide plate according to claim 1, characterized in that: Two groups of the connecting frames (4) are provided, and the connecting frames (4) are symmetrically distributed about the central axis of the bracket (1). The light guide plate body (6) is arranged and connected inside the mounting frame (203).

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