CN215219225U

CN215219225U - Light guide plate fixing device

Info

Publication number: CN215219225U
Application number: CN202121454719.4U
Authority: CN
Inventors: 郭浩瑞; 胡四九; 魏永辉; 徐心泉
Original assignee: Anhui Jingpeng Intelligent Equipment Technology Co ltd
Current assignee: Anhui Jingpeng Intelligent Equipment Technology Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-17
Anticipated expiration: 2031-06-29

Abstract

The utility model belongs to the technical field of the light guide plate, especially, light guide plate fixing device, including rectangular frame, rectangular frame's positive fixedly connected with apron, the show window has been seted up in the front of apron, and bolt fixedly connected with backplate is passed through at rectangular frame's the back. This light guide plate fixing device, front through setting up the backplate is provided with elastic fixing device, and elastic fixing device includes the fixed block, the back of two fixed blocks all with the positive fixed connection of backplate, reached and to have made the light guide plate absorb heat and expand the back and can extend the formula and remove, prevent the effect of extrusion deformation, the light guide plate of having solved in the current entrance guard is mostly all through carrier mounting in the electric door, and tightly fix four angles of light guide plate through the screw, although the stability of light guide plate has been improved, but the light guide plate can produce the inflation after the heat absorption, this is easily made the light guide plate that is fastened in the past because of the inflation and extrusion deformation, thereby the problem of very big influence has been caused to leaded light angle and degree of consistency.

Description

Light guide plate fixing device

Technical Field

The utility model relates to a light guide plate technical field especially relates to a light guide plate fixing device.

Background

The light guide plate is with optics level ya keli as the substrate, the backlight unit technique of application LCD display screen and notebook computer, the full high light transmittance that sees through the leaded light pad, design through the computer to the leaded light point makes the even light state of light guide plate light refraction bearing surface light source make the shaping, make various multi-functional novel advertisement carriers of frame material, be applicable to the electrically operated gate of district card swiping entrance guard, the people that often came in and go out the district is more, the best strong propaganda to the advertisement undoubtedly.

The light guide plate in the current entrance guard is mostly installed in the electric door through the carrier to tightly fix four angles of light guide plate through the screw, though improved the stability of light guide plate, the light guide plate can produce the inflation after the heat absorption, and this easily makes the light guide plate that is fastened because of the inflation extrusion deformation in the past, thereby has led to the fact very big influence to leaded light angle and degree of consistency.

SUMMERY OF THE UTILITY MODEL

Based on current light guide plate mostly all through the carrier mounting in the electric door to tightly fix four angles of light guide plate through the screw, though improved the stability of light guide plate, the light guide plate can produce the inflation after the heat absorption, and this time easily makes the light guide plate of fastening because of the inflation extrusion deformation in the past, thereby has caused the technical problem of very big influence to leaded light angle and degree of consistency, the utility model provides a light guide plate fixing device.

The utility model provides a light guide plate fixing device, including rectangular frame, rectangular frame's front fixedly connected with apron, the show window has been seted up on the front of apron, rectangular frame's the back is through bolt fixedly connected with backplate, the front of backplate is seted up the radiating groove, the front of radiating groove is seted up and is the louvre that the rectangular array distributes;

the front of backplate is provided with elastic fixing device, and elastic fixing device includes the fixed block, two the back of fixed block all with the front fixed connection of backplate.

Preferably, the upper surfaces of the two fixing blocks are provided with slots, and the opposite surfaces of the two fixing blocks are fixedly connected with sliding rods;

through above-mentioned technical scheme, install toughened glass in the show window and be used for the protection to the show advertisement, the louvre plays more effective heat transfer through the space in the radiating groove.

Preferably, the lower surface of the sliding rod is in contact with the inner bottom wall of the rectangular frame, and the outer surface of the sliding rod is sleeved with symmetrically distributed sliding blocks in a sliding manner;

through the technical scheme, the sliding block plays a role in limiting sliding on the sliding rod.

Preferably, the surfaces of one sides of the two sliding blocks, which are opposite to each other, are fixedly connected with telescopic springs, and the free ends of one ends of the two telescopic springs are fixedly connected with the surface of the side, opposite to the fixed block, of the fixed block;

through above-mentioned technical scheme, expanding spring plays the effect that the cooperation slider moved that resets.

Preferably, the upper surfaces of the two sliding blocks are fixedly connected with first mounting seats, and the inner walls of the two first mounting seats are hinged with connecting rods through pin shafts;

through above-mentioned technical scheme, the motion of connecting rod drives the slider through first mount pad and removes.

Preferably, one end of each of the two connecting rods is hinged with a second mounting seat through a pin shaft, and the upper surface of each second mounting seat is fixedly connected with a positioning block;

through above-mentioned technical scheme, the descending of second mount pad removes the one end that drives two connecting rods and pushes down the removal.

Preferably, the front surface of the positioning block is in threaded connection with a light guide plate body through a press rivet screw, and the surfaces of the two sides of the light guide plate are movably inserted into the inner walls of the slots;

through above-mentioned technical scheme, the locating piece is riveted the screw through the pressure and is played the effect fixed with convenient to detach light guide plate body.

The utility model provides a beneficial effect does:

the front through setting up the backplate is provided with elastic fixing device, and elastic fixing device includes the fixed block, the back of two fixed blocks all with the positive fixed connection of backplate, reached and made the light guide plate absorb heat and expand the back and can extend the formula and remove, prevent extrusion deformation's effect, the light guide plate of having solved in the current entrance guard is mostly all through carrier mounting in the electric door, and through the screw with four tight fixes in angle of light guide plate, although the stability of light guide plate has been improved, but the light guide plate can produce the inflation after the heat absorption, easily make the light guide plate of fastening in the past in the long term because of the inflation and extrusion deformation, thereby the problem of very big influence has been caused to leaded light angle and degree of consistency.

Drawings

FIG. 1 is a schematic view of a light guide plate fixing device;

FIG. 2 is an exploded view of a light guide plate fixing device;

fig. 3 is an enlarged view of a structure a in fig. 2 of a light guide plate fixing device.

In the figure: 1. a rectangular frame; 2. a cover plate; 3. displaying the window; 4. a back plate; 5. heat dissipation holes; 6. a fixed block; 61. a slot; 62. a slide bar; 63. a slider; 64. a tension spring; 65. a first mounting seat; 66. a connecting rod; 67. a second mounting seat; 68. positioning blocks; 69. the light guide plate body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a light guide plate fixing device comprises a rectangular frame 1, wherein a cover plate 2 is fixedly connected to the front surface of the rectangular frame 1, a display window 3 is formed in the front surface of the cover plate 2, a back plate 4 is fixedly connected to the back surface of the rectangular frame 1 through bolts, a heat dissipation groove is formed in the front surface of the back plate 4, and heat dissipation holes 5 distributed in a rectangular array are formed in the front surface of the heat dissipation groove;

the front of backplate 4 is provided with elastic fixing device, and elastic fixing device includes fixed block 6, and the back of two fixed blocks 6 all with the front fixed connection of backplate 4.

Further, slot 61 has all been seted up to the upper surface of two fixed blocks 6, and the equal fixedly connected with slide bar 62 in the relative surface of two fixed blocks 6 installs toughened glass in the show window 3 and is used for the protection to the show advertisement, and louvre 5 plays more effective heat transfer through the space in the radiating groove.

Further, the lower surface of the sliding rod 62 is in contact with the inner bottom wall of the rectangular frame 1, the sliding blocks 63 which are symmetrically distributed are sleeved on the outer surface of the sliding rod 62 in a sliding mode, and the sliding blocks 63 play a role in limiting sliding on the sliding rod 62.

Further, the surface of one side that two sliders 63 carried on the back mutually all fixedly connected with expanding spring 64, the one end free end of two expanding springs 64 all with the fixed block 6 relative side fixed surface be connected, expanding spring 64 plays the effect that cooperation slider 63 reset and remove.

Further, the first mount pad 65 of the equal fixedly connected with of upper surface of two sliders 63, the inner wall of two first mount pads 65 all articulates through the round pin axle has connecting rod 66, and the motion of connecting rod 66 drives slider 63 through first mount pad 65 and removes.

Further, the one end of two connecting rods 66 all articulates through the round pin axle has second mount pad 67, and the last fixed surface of second mount pad 67 is connected with locating piece 68, and the descending movement of second mount pad 67 drives the one end of two connecting rods 66 and pushes down the removal.

Further, the front surface of the positioning block 68 is connected with a light guide plate body 69 through a press riveting screw thread, the two side surfaces of the light guide plate are movably inserted into the inner walls of the slots 61, and the positioning block 68 plays a role in fixing and facilitating the disassembly of the light guide plate body 69 through the press riveting screw.

Through the front that sets up backplate 4 is provided with elastic fixation device, and elastic fixation device includes fixed block 6, the back of two fixed blocks 6 all with backplate 4's positive fixed connection, reached and to have made and to have stretched the formula after the light guide plate heat absorption inflation and removed, prevent extrusion deformation's effect, the light guide plate of having solved in the current entrance guard is mostly all through carrier mounting in the electric door, and tightly fixed with four angles of light guide plate through the screw, although the stability of light guide plate has been improved, but the light guide plate can produce the inflation after the heat absorption, this time easily make the light guide plate of fastening because of the inflation and extrusion deformation, thereby the problem of very big influence has been caused to leaded light angle and degree of consistency.

The working principle is as follows: when hot weather makes light guide plate body 69 absorb heat and expand, because the upper surface of light guide plate body 69 and rectangular frame 1's interior roof contact, expanded light guide plate body 69 extends and drives second mount pad 67 descending movement, the decline of second mount pad 67 is passed through connecting rod 66 and is extrudeed first mount pad 65, first mount pad 65 that makes drives slider 63 and slides to slide bar 62 both sides, thereby drive expanding spring 64 and carry out the shrink motion, begin the shrink after the heat of light guide plate body 69 looses, cooperation expanding spring 64 drives slider 63 and resets, slider 63's removal drives connecting rod 66 one end through first mount pad 65 and removes, thereby make two connecting rods 66 drive light guide plate body 69 through locating piece 68 on the second mount pad 67 and contract and reset.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A light guide plate fixing device includes a rectangular frame (1), characterized in that: the front surface of the rectangular frame (1) is fixedly connected with a cover plate (2), the front surface of the cover plate (2) is provided with a display window (3), the back surface of the rectangular frame (1) is fixedly connected with a back plate (4) through bolts, the front surface of the back plate (4) is provided with a heat dissipation groove, and the front surface of the heat dissipation groove is provided with heat dissipation holes (5) distributed in a rectangular array;

the front of backplate (4) is provided with elasticity fixing device, and elasticity fixing device includes fixed block (6), two the back of fixed block (6) all with the front fixed connection of backplate (4).

2. The light guide plate fixing device according to claim 1, wherein: slots (61) are formed in the upper surfaces of the two fixing blocks (6), and sliding rods (62) are fixedly connected to the opposite surfaces of the two fixing blocks (6).

3. The light guide plate fixing device according to claim 2, wherein: the lower surface of the sliding rod (62) is in contact with the inner bottom wall of the rectangular frame (1), and the outer surface of the sliding rod (62) is sleeved with symmetrically distributed sliding blocks (63) in a sliding mode.

4. The light guide plate fixing device according to claim 3, wherein: two slider (63) one side surface that backs on the back all fixedly connected with expanding spring (64), two the one end free end of expanding spring (64) all with the relative one side fixed surface of fixed block (6) is connected.

5. The light guide plate fixing device according to claim 4, wherein: two the equal fixedly connected with first mount pad (65) of upper surface of slider (63), two the inner wall of first mount pad (65) all articulates through the round pin axle has connecting rod (66).

6. The light guide plate fixing device according to claim 5, wherein: two the one end of connecting rod (66) all articulates through the round pin axle has second mount pad (67), the last fixed surface of second mount pad (67) is connected with locating piece (68).

7. The light guide plate fixing device according to claim 6, wherein: the front surface of the positioning block (68) is connected with a light guide plate body (69) through a press rivet screw thread, and the surfaces of the two sides of the light guide plate are movably inserted into the inner walls of the slots (61).