Fixing device for light guide plate

Abstract

A fixing device for a light guide plate comprises a mounting frame and a plurality of rubber pads arranged in the mounting frame, a square containing cavity is formed in the middle of the mounting frame, the rubber pads are located at the corners of the containing cavity respectively, the light guide plate is arranged in the mounting frame, the light guide plate is located between the rubber pads, and the rubber pads are located between the rubber pads. Second wedge-shaped faces are formed on the periphery of the light guide plate, first wedge-shaped faces are formed on the sides, close to the light guide plate, of the rubber pads, and the second wedge-shaped faces abut against the first wedge-shaped faces. According to the fixing device, the light guide plate is arranged among the four rubber pads, through protection of the four rubber pads, the four rubber pads can buffer external force when the light guide plate is subjected to the external force, and therefore the light guide plate is protected, the first wedge-shaped faces are formed on the rubber pads, and the second wedge-shaped faces are formed on the light guide plate; and the first wedge-shaped surface and the second wedge-shaped surface are matched, so that the light guide plate can be effectively prevented from loosening in the mounting frame.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a fixing device for a light guide plate. Background Art

[0002] A light guide is an optical component used to guide and distribute light. It is often used in lighting systems to improve light uniformity and efficiency. In many applications, the light guide needs to be fixed in a specific position to ensure that it works properly.

[0003] In the prior art, the fixing device for the light guide plate usually adopts mechanical fasteners, such as screws, nuts or clips, to fix the light guide plate to the supporting structure. Although this method is simple, there may be some problems. The mechanical fasteners may cause pressure or stress to the light guide plate, causing deformation or damage, thereby affecting the light transmission effect. Secondly, some manufacturers use silicone pads and light guide plates as vertical planes to install and fix the light guide plate with silicone pads. However, the product is easily subjected to external force, causing the light guide plate to loosen and fall off. Therefore, a fixing device for the light guide plate is proposed, which can prevent the light guide plate from loosening and protect the light guide plate at the same time. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a fixing device for a light guide plate which can prevent the light guide plate from loosening and can protect the light guide plate at the same time.

[0005] The utility model provides the following technical solutions: a fixing device for a light guide plate, comprising a mounting frame and a plurality of rubber pads arranged in the mounting frame, a square accommodating cavity is opened in the middle of the mounting frame, the rubber pads are respectively located at the corners of the accommodating cavity, a light guide plate is arranged in the mounting frame, the light guide plate is located between the rubber pads, a second wedge-shaped surface is formed around the periphery of the light guide plate, a first wedge-shaped surface is formed on the side of the rubber pad close to the light guide plate, the second wedge-shaped surface is abutted against the first wedge-shaped surface, both sides of the mounting frame are slidably connected with a clamping piece, a part of the clamping piece is in contact with the rubber pad, and the fixing device also includes a pushing mechanism for simultaneously pushing the two clamping pieces to slide.

[0006] Furthermore, two rubber pads are arranged in the installation frame, and the two rubber pads are located in the accommodating cavity and are arranged diagonally.

[0007] Furthermore, four rubber pads are arranged in the installation frame, and the four rubber pads are respectively arranged at four corners of the accommodating cavity.

[0008] Furthermore, a wedge-shaped portion is provided on one side of the locking member close to the rubber pad.

[0009] Furthermore, the pushing mechanism includes a slide groove opened on the installation frame and a slider slidably arranged in the slide groove. A connecting frame is provided on each of the two positioning members. A swing rod is hinged between the two connecting frames and the sliders respectively. The movement of the slider through the swing rod will drive the two connecting frames to move closer to the slide groove or away from the slide groove at the same time.

[0010] Furthermore, the fixing device also includes a locking mechanism for locking the slider.

[0011] Furthermore, the locking mechanism includes a threaded seat arranged on the slider and a support arranged on a side of the installation frame close to the slide groove, the support is rotatably connected to a screw rod, and the screw rod is threadedly connected to the threaded seat.

[0012] Furthermore, a knob is fixedly connected to one end of the screw rod away from the support, the knob is cylindrical, and a plurality of grooves are evenly formed on the outer wall of the knob.

[0013] The beneficial effects of the utility model are as follows: by arranging the light guide plate between the four rubber pads, the four rubber pads can buffer the external force when subjected to external force, thereby protecting the light guide plate; secondly, a first wedge-shaped surface is formed on the rubber pad, and a second wedge-shaped surface is formed on the light guide plate, and the first wedge-shaped surface cooperates with the second wedge-shaped surface, which can effectively prevent the light guide plate from loosening in the installation frame; finally, the rubber pad can be blocked by the action of the locking member to prevent the rubber pad from falling off and falling out of the accommodating cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the rubber pad and the light guide plate of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the rubber pad and the wedge-shaped part of the utility model.

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the driving mechanism of the utility model.

[0018] Figure 5 It is a three-dimensional structural schematic diagram of the locking mechanism of the utility model.

[0019] The marks in the accompanying drawings are: 1-installation frame, 11-accommodating cavity, 2-rubber pad, 21-first wedge surface, 3-light guide plate, 31-second wedge surface, 4-locking piece, 41-wedge portion, 5-pushing mechanism, 51-connecting frame, 52-slider, 53-swing rod, 54-slide groove, 6-locking mechanism, 61-support, 62-screw, 63-threaded seat, 64-knob. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] A fixing device for the light guide plate 3, such as Figure 1-Figure 3 As shown, it includes a mounting frame 1 and a plurality of rubber pads 2 arranged in the mounting frame 1. A square accommodating cavity 11 is opened in the middle of the mounting frame 1. The rubber pads 2 are respectively located at the corners of the accommodating cavity 11. A light guide plate 3 is arranged in the mounting frame 1. The light guide plate 3 is located between the rubber pads 2. The periphery of the light guide plate 3 forms a second wedge surface 31. The side of the rubber pad 2 close to the light guide plate 3 forms a first wedge surface 21. The second wedge surface 31 abuts against the first wedge surface 21. Both sides of the mounting frame 1 are slidably connected with a clamping member 4, a part of the clamping member 4 is in contact with the rubber pad 2, and the fixing device also includes a pushing mechanism 5 for simultaneously pushing the two clamping members 4 to slide.

[0024] Specifically, the mounting frame 1 is a square frame, a square accommodating cavity 11 is opened in the middle of the mounting frame 1, a plurality of rubber pads 2 are glued to the corners of the accommodating cavity 11 by glue, and the rubber pads 2 are L-shaped. Four rubber pads 2 are provided in this embodiment, and the four rubber pads 2 are respectively provided at the four corners of the accommodating cavity 11. In other embodiments, there may be two rubber pads 2, and the two rubber pads 2 are diagonally arranged in the accommodating cavity 11. A light guide plate 3 is provided in the mounting frame 1, and the four sides of the light guide plate 3 are inclined to form a second wedge-shaped surface 31, and the second wedge-shaped surface 31 of the light guide plate 3 is formed from the side of the light guide plate 3 away from the accommodating cavity 11 and inclined toward the center of the light guide plate 3. The side of the rubber pad 2 close to the light guide plate 3 is inclined to form a first wedge surface 21, and the second wedge surface 31 is against the first wedge surface 21. Therefore, by arranging the light guide plate 3 between the four rubber pads 2, the four rubber pads 2 can buffer the external force when subjected to external force, thereby protecting the light guide plate 3. Secondly, the first wedge surface 21 is formed on the rubber pad 2, and the second wedge surface 31 is formed on the light guide plate 3. The first wedge surface 21 and the second wedge surface 31 cooperate with each other, which can effectively prevent the light guide plate 3 from loosening in the installation frame 1. Both sides of the installation frame 1 are slidably connected with a clamping piece 4, and the clamping piece 4 is composed of two blocks and a long strip, the long strip connects the two blocks, the block part of the clamping piece 4 is in contact with the rubber pad 2, and the action of the clamping piece 4 can prevent the rubber pad 2 from falling off from the installation frame 1, and the fixing device also includes a pushing mechanism 5 for simultaneously pushing the two clamping pieces 4 to slide; when it is necessary to install the rubber pad 2 and the light guide plate 3 into the installation frame 1, the operator can first take out a mounting frame 1, four rubber pads 2 and a conduit plate, first operate the pushing mechanism 5 on the mounting frame 1, so that the pushing mechanism 5 drives the two clamping pieces 4 to move to the outside of the mounting frame 1, and then place the four rubber pads 2 on the light guide plate 3 respectively. 3, and at the same time, the first wedge-shaped surface 21 of the rubber pad 2 is in contact with the second wedge-shaped surface 31 of the light guide plate 3, and then glue is applied to the four corners of the accommodating cavity 11 of the installation frame 1, and then the light guide plate 3 with the rubber pad 2 is placed into the accommodating cavity 11 of the installation frame 1. The rubber pad 2 on the light guide plate 3 will be located at the four corners of the accommodating cavity 11 of the installation frame 1, and the glue will also fix the rubber pad 2. Then the operator can operate the pushing mechanism 5 again, and the pushing mechanism 5 will drive the two blocking members 4 to move toward the inside of the installation frame 1, so that the blocking members 4 block the rubber pad 2 to prevent the rubber pad 2 from falling off and falling out of the accommodating cavity 11.

[0025] In summary, by arranging the light guide plate 3 between the four rubber pads 2, through the protection of the four rubber pads 2, the four rubber pads 2 can buffer the external force when subjected to external force, thereby protecting the light guide plate 3. Secondly, a first wedge-shaped surface 21 is formed on the rubber pad 2, and a second wedge-shaped surface 31 is formed on the light guide plate 3. The first wedge-shaped surface 21 cooperates with the second wedge-shaped surface 31, which can effectively prevent the light guide plate 3 from loosening in the installation frame 1. Finally, through the action of the locking member 4, the rubber pad 2 can be blocked to prevent the rubber pad 2 from falling off and falling out of the accommodating cavity 11.

[0026] like Figure 3 As shown, a wedge-shaped portion 41 is provided on one side of the locking member 4 close to the rubber pad 2 .

[0027] Among them, the wedge-shaped portion 41 is used to squeeze the rubber pad 2 that is not firmly installed. Specifically, when the locking member 4 moves toward the inner side of the installation frame 1, the locking member 4 will drive the wedge-shaped portion 41 to move. When some rubber pads 2 are not installed, the uninstalled rubber pads 2 will protrude a portion. When the wedge-shaped portion 41 moves toward the inner side of the installation frame 1, the wedge-shaped portion 41 can squeeze the protruding rubber pad 2, thereby squeezing the protruding portion of the rubber pad 2 into the accommodating cavity 11, so that the rubber pad 2 is completely located in the accommodating cavity 11, thereby making the light guide plate 3 installed between the rubber pads 2 more fit.

[0028] like Figure 4 and Figure 5 As shown, the pushing mechanism 5 includes a slide groove 54 opened on the installation frame 1 and a slider 52 slidably arranged in the slide groove 54. A connecting frame 51 is provided on each of the two positioning members 4. A swing rod 53 is hinged between the two connecting frames 51 and the slider 52 respectively. The movement of the slider 52 through the swing rod 53 will drive the two connecting frames 51 to move closer to the slide groove 54 or away from the slide groove 54 at the same time.

[0029] The specific operation process of the pushing mechanism 5 is as follows: the operator can push the slider 52 to move in the direction close to the support 61. When the slider 52 moves, it will drive the two swing rods 53 to swing outward. The swing rod 53 will push the connecting frame 51 to move outward of the installation frame 1. The connecting frame 51 will drive the locking member 4 to move outward of the installation frame 1. When the locking member 4 needs to move to the inside of the installation frame 1, the operator can push the slider 52 to move away from the support 61. The movement of the slider 52 will drive the two swing rods 53 to move inward. The swing rod 53 drives the connecting frame 51 to move inward, thereby the connecting frame 51 drives the locking member 4 to move to the inside of the installation frame 1.

[0030] like Figure 5As shown, the fixing device also includes a locking mechanism 6 for locking the slider 52. The locking mechanism 6 includes a threaded seat 63 provided on the slider 52 and a support 61 provided on a side of the mounting frame 1 close to the slide groove 54, a screw rod 62 is rotatably connected to the support 61, the screw rod 62 is threadedly connected to the threaded seat 63, a knob 64 is fixedly connected to one end of the screw rod 62 away from the support 61, and the knob 64 is cylindrical, and a plurality of grooves are evenly formed on the outer wall of the knob 64.

[0031] The operator can rotate the knob 64 in the forward direction. Since the outer wall of the knob 64 is provided with multiple grooves, the operator can avoid slipping when rotating the knob. When the knob 64 rotates in the forward direction, it will drive the screw 62 to rotate. When the screw 62 rotates, it will push the threaded seat 63 to move in the direction close to the support 61. The movement of the threaded seat 63 will drive the slider 52 to move. Thus, the movement of the slider 52 will cause the two locking members 4 to move toward the outside of the installation frame 1. When the operator rotates the knob 64 in the reverse direction, the knob 64 will drive the screw 62 to rotate in the reverse direction. The rotation of the screw 62 will drive the threaded seat 63 to move away from the support 61. The movement of the threaded seat 63 in the direction away from the support 61 will drive the slider 52 to move away from the support 61. Thus, the two locking members 4 will move toward the inside of the installation frame 1.

[0032] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A fixing device for a light guide plate, characterized in that: It includes a mounting frame and a plurality of rubber pads arranged in the mounting frame, a square accommodating cavity is opened in the middle of the mounting frame, the rubber pads are respectively located at the corners of the accommodating cavity, a light guide plate is arranged in the mounting frame, the light guide plate is located between the rubber pads, a second wedge-shaped surface is formed around the periphery of the light guide plate, a first wedge-shaped surface is formed on the side of the rubber pad close to the light guide plate, the second wedge-shaped surface is abutted against the first wedge-shaped surface, both sides of the mounting frame are slidably connected with a clamping piece, a part of the clamping piece is in contact with the rubber pad, and the fixing device also includes a pushing mechanism for simultaneously pushing the two clamping pieces to slide.

2. The fixing device according to claim 1, characterized in that: Two rubber pads are arranged in the installation frame, and the two rubber pads are located in the accommodating cavity and are arranged diagonally.

3. The fixing device according to claim 1, characterized in that: Four rubber pads are arranged in the installation frame, and the four rubber pads are respectively arranged at four corners of the accommodating cavity.

4. The fixing device according to claim 1, characterized in that: A wedge-shaped portion is arranged on one side of the clamping member close to the rubber pad.

5. The fixing device according to claim 4, characterized in that: The pushing mechanism includes a slide groove provided on the installation frame and a slider slidably arranged in the slide groove. A connecting frame is provided on each of the two positioning members. A swing rod is hinged between the two connecting frames and the sliders respectively. The movement of the slider through the swing rod will drive the two connecting frames to move closer to the slide groove or away from the slide groove at the same time.

6. The fixing device according to claim 5, characterized in that: The fixing device also includes a locking mechanism for locking the sliding block.

7. The fixing device according to claim 6, characterized in that: The locking mechanism comprises a threaded seat arranged on the slider and a support arranged on a side of the installation frame close to the slide groove, a screw rod is rotatably connected to the support, and the screw rod is threadably connected to the threaded seat.

8. The fixing device according to claim 7, characterized in that: A knob is fixedly connected to one end of the screw rod away from the support. The knob is cylindrical in shape, and a plurality of grooves are evenly arranged on the outer wall of the knob.

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