Light-emitting diode (LED) backlight light guide plate with displacement prevention function

Abstract

The utility model provides an LED backlight light guide plate with an anti-displacement function, which comprises a light guide plate, a mounting rack is mounted on the outer side of the light guide plate, a mounting groove is arranged on the inner side of the mounting rack, connecting holes are arranged on two sides of the mounting rack, threaded seats are fixedly mounted on one sides of the two groups of connecting holes, and the threaded seats are fixedly connected with the mounting rack. The inner sides of the two sets of threaded seats are in threaded connection with first screws, one ends of the two sets of first screws are rotationally connected with top plates, and the adjacent sides of the two sets of top plates abut against the light guide plate. According to the utility model, through cooperation of the first screw and the threaded seat, flexible movement and locking of the first screw can be realized, through cooperation of the first screw and the top plates, flexible movement and locking of the top plates can be realized, and after the light guide plate is mounted in the mounting rack, the light guide plate can be tightly jacked by the two groups of top plates, so that rapid mounting of the light guide plate is realized; the light guide plate can be prevented from loosening in the using process, the light guide plate can be matched with light guide plates with different lengths, and the applicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of light guide plates, and more specifically, particularly relates to an LED backlight source light guide plate with an anti-displacement function. Background Art

[0002] The light guide plate is an important component of the LED backlight source. The light guide plate is made of optical-grade acrylic / PC sheets, and then uses high-tech materials with extremely high reflectivity and no light absorption. The optical-grade acrylic sheet is used to absorb the light emitted from the lamp and stay on the surface of the optical-grade acrylic sheet, and the device converts the point light source into a surface light source. Its main function is to guide the direction of light to improve the brightness of the panel and control the uniformity of light. It is an important component that affects light efficiency.

[0003] The existing light guide plates are mostly installed by opening a slide groove matching the size of the light guide plate on the aluminum outer frame. After the light guide plate is inserted into the outer frame, the entrance of the slide groove is sealed with fasteners to achieve the purpose of fixing the light guide plate. This method is difficult to adapt to light guide plates of different sizes. For light guide plates of different sizes, special frames need to be customized, resulting in high production costs. Therefore, in view of this, the existing structure and defects are studied and improved, and an LED backlight light guide plate with anti-displacement function is provided, in order to achieve a more practical purpose. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides an LED backlight source light guide plate with anti-displacement function, which is achieved by the following specific technical means:

[0005] A light guide plate for an LED backlight source with an anti-displacement function comprises a light guide plate, a mounting frame is installed on the outer side of the light guide plate, a mounting groove is provided on the inner side of the mounting frame, connecting holes are provided on both sides of the mounting frame, threaded seats are fixedly installed on one side of two groups of connecting holes, screw rods are threadedly connected to the inner sides of the two groups of threaded seats, top plates are rotatably connected to one end of the two groups of screw rods, and adjacent sides of the two groups of top plates are arranged to abut against the light guide plate.

[0006] Furthermore, a connecting frame is installed on one side of the mounting frame, and a plurality of through holes are provided on the connecting frame, and screw rods 2 are installed on the inner sides of the plurality of through holes. The mounting frame is provided with a plurality of screw holes corresponding to the plurality of screw rods 2 on one side close to the connecting frame, and the screw holes are threadedly connected to the screw rods 2.

[0007] Furthermore, a pressing frame is fixedly mounted on a side of the connecting frame close to the mounting frame.

[0008] Furthermore, a rotating seat is fixedly mounted on one end of the screw rod.

[0009] Furthermore, a rubber sheet is fixedly bonded to a side of the top plate close to the light guide plate.

[0010] Furthermore, a sliding block is fixedly mounted on one side of the top plate, and a sliding groove slidably connected to the sliding block is provided on one side of the mounting frame.

[0011] Furthermore, connecting grooves are provided on both sides of the mounting frame, connecting rods are slidably connected to the inner sides of the two groups of connecting grooves, and connecting seats are rotatably connected to the two groups of connecting rods. A rotating frame is fixedly installed on one side of the two groups of connecting seats, and an insert block is fixedly installed on one side of the rotating frame, and the length and width of the insert block are equal to the length and width of the mounting groove.

[0012] Furthermore, a groove is provided on one side of the rotating frame.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model can realize flexible movement and locking of screw one through the cooperation between screw one and the threaded seat, and can realize flexible movement and locking of the top plate through the cooperation between screw one and the top plate. After the light guide plate is installed in the mounting frame, the light guide plate can be tightened by two groups of top plates, thereby realizing rapid installation of the light guide plate, preventing the light guide plate from loosening during use, and can adapt to light guide plates of different lengths, with high applicability.

[0015] 2. The utility model can realize the flexible movement and locking of the pressure frame and the connecting frame through the cooperation of the screw rod 2 and the screw hole, so as to fix the light guide plate after the light guide plate is installed in the mounting frame. It can fix light guide plates of different thicknesses, making the fixation of the light guide plate more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the internal structure of the installation slot of the utility model.

[0018] Figure 3 It is a schematic diagram of the structure of the pressing frame and the connecting frame of the utility model.

[0019] Figure 4 It is a structural schematic diagram of a rotating frame of the utility model.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 1. Light guide plate; 2. Mounting frame; 3. Threaded seat; 4. Screw rod 1; 5. Top plate; 6. Rotating seat; 7. Connecting frame; 8. Pressing frame; 9. Screw rod 2; 10. Screw hole; 11. Connecting groove; 12. Connecting rod; 13. Connecting seat; 14. Rotating frame; 15. Insert block. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 4 As shown:

[0027] The utility model provides an LED backlight source light guide plate with an anti-displacement function, comprising a light guide plate 1, a mounting frame 2 is installed on the outer side of the light guide plate 1, a mounting groove is provided on the inner side of the mounting frame 2, connecting holes are provided on both sides of the mounting frame 2, threaded seats 3 are fixedly installed on one side of two groups of the connecting holes, screw rods 4 are threadedly connected to the inner sides of the two groups of the threaded seats 3, top plates 5 are rotatably connected to one end of the two groups of the screw rods 4, and adjacent sides of the two groups of the top plates 5 are arranged to abut against the light guide plate 1.

[0028] Among them, a connecting frame 7 is installed on one side of the mounting frame 2, and a plurality of through holes are provided on the connecting frame 7, and screw rods 9 are installed on the inner sides of the plurality of through holes. The mounting frame 2 is provided with a plurality of screw holes 10 corresponding to the plurality of screw rods 9 on one side close to the connecting frame 7, and the screw holes 10 are threadedly connected with the screw rods 9 to facilitate driving the connecting frame 7 to adjust and move.

[0029] The connection frame 7 has a pressing frame 8 fixedly mounted on one side close to the mounting frame 2 , so as to fix the light guide plates 1 of different thicknesses.

[0030] Among them, a rotating seat 6 is fixedly installed at one end of the screw rod 1 4 to facilitate the operator to rotate the screw rod 1 4.

[0031] A rubber sheet is fixedly bonded on one side of the top plate 5 close to the light guide plate 1 to prevent the top plate 5 from damaging the light guide plate 1 .

[0032] A slider is fixedly mounted on one side of the top plate 5, and a slide groove slidably connected to the slider is provided on one side of the mounting frame 2, so that the top plate 5 is kept from rotating when the screw rod 4 rotates.

[0033] Among them, connecting grooves 11 are provided on both sides of the mounting frame 2, and connecting rods 12 are slidably connected to the inner sides of the two groups of connecting grooves 11, and the two groups of connecting rods 12 are rotatably connected to the connecting seats 13. A rotating frame 14 is fixedly installed on one side of the two groups of connecting seats 13, and an insert block 15 is fixedly installed on one side of the rotating frame 14. The length and width of the insert block 15 are equal to the length and width of the mounting groove, which protects the mounting groove to prevent mosquitoes and other debris from entering the mounting groove during long-term use, thereby affecting the light output effect of the light guide plate 1.

[0034] A groove is provided on one side of the rotating frame 14 to facilitate the operator to drive the rotating frame 14 to move.

[0035] The working principle of this embodiment is as follows: when the light guide plate 1 needs to be installed, first place the light guide plate 1 into the mounting frame 2, rotate the rotating seat 6 to drive the screw 1 4 to rotate, the screw 1 4 drives the top plate 5 to move and press the light guide plate 1, then rotate the screw 2 9 to drive the pressing frame 8 to press the light guide plate 1, place the insert 15 into the mounting groove, and complete the installation of the light guide plate 1.

[0036] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A LED backlight source light guide plate with an anti-displacement function, comprising a light guide plate (1), a mounting frame (2) being mounted on the outer side of the light guide plate (1), and a mounting groove being provided on the inner side of the mounting frame (2), characterized in that: Both sides of the mounting frame (2) are provided with connection holes, one side of the two groups of connection holes is fixedly mounted with a threaded seat (3), the inner sides of the two groups of threaded seats (3) are threadedly connected with a screw rod (4), one end of the two groups of screw rods (4) are rotatably connected with a top plate (5), and the adjacent sides of the two groups of top plates (5) are arranged to abut against the light guide plate (1).

2. The LED backlight source light guide plate with anti-displacement function as claimed in claim 1, characterized in that: A connecting frame (7) is installed on one side of the mounting frame (2), and a plurality of through holes are provided on the connecting frame (7), and screw rods (9) are installed inside the plurality of through holes. A plurality of screw holes (10) are respectively provided on the side of the mounting frame (2) close to the connecting frame (7) corresponding to the plurality of screw rods (9), and the screw holes (10) are threadedly connected to the screw rods (9).

3. The LED backlight source light guide plate with anti-displacement function as claimed in claim 2, characterized in that: The connecting frame (7) is fixedly mounted with a pressing frame (8) on a side close to the mounting frame (2).

4. The LED backlight source light guide plate with anti-displacement function as claimed in claim 1, characterized in that: A rotating seat (6) is fixedly mounted on one end of the screw rod (4).

5. The LED backlight source light guide plate with anti-displacement function as claimed in claim 1, characterized in that: A rubber sheet is fixedly bonded to the top plate (5) on a side close to the light guide plate (1).

6. The LED backlight source light guide plate with anti-displacement function as claimed in claim 1, characterized in that: A sliding block is fixedly mounted on one side of the top plate (5), and a sliding groove slidably connected to the sliding block is provided on one side of the mounting frame (2).

7. The LED backlight source light guide plate with anti-displacement function as claimed in claim 1, characterized in that: Both sides of the mounting frame (2) are provided with connecting grooves (11), the inner sides of the two groups of connecting grooves (11) are slidably connected with connecting rods (12), the two groups of connecting rods (12) are rotatably connected with connecting seats (13), one side of the two groups of connecting seats (13) is fixedly mounted with a rotating frame (14), one side of the rotating frame (14) is fixedly mounted with an insert block (15), and the length and width of the insert block (15) are equal to the length and width of the mounting groove.

8. The LED backlight source light guide plate with anti-displacement function as claimed in claim 7, characterized in that: A groove is provided on one side of the rotating frame (14).

Images