Frame and backlight source

Abstract

The frame comprises a frame body, a top cover is arranged at the top of the frame body, a fixing assembly used for fixing the position of the frame body is arranged at the bottom of the frame body, the fixing assembly comprises a fixing frame, a containing groove is formed in the top end of the fixing frame, and the frame body is connected into the containing groove in a penetrating mode. Positioning grooves are symmetrically formed in the two sides of the frame body. Through the design of the fixing frame, the placing groove, the positioning groove, the positioning cam and the rotating piece, when the position of a backlight source needs to be fixed, the position of the fixing frame is fixed through a bolt, then the frame body directly penetrates into the placing groove, and one end of the positioning cam is driven by the rotating piece to move into the positioning groove; the position of the frame body is fixed through the positioning cam, so that when the backlight source is maintained, the frame body and the backlight source on the frame body are disassembled and assembled by directly driving the positioning cam to rotate through the rotating piece.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight sources, in particular to a frame and a backlight source. Background Art

[0002] In machine vision and image processing, bottom backlights are often used to improve the edge detection and contour recognition capabilities of the detected object. The role of the bottom backlight is to place a light source between the detected object and the camera to make the edges and contours of the object more clearly visible.

[0003] When the backlight source is in use, it needs to be maintained regularly. Regular inspection and maintenance can timely discover and repair potential problems, avoid failure of the backlight source at a critical moment, and affect the detection results. The traditional backlight source is fixed by directly tightening the bolts with tools and fixing them with bolts. When the backlight source is maintained multiple times, there is a situation where the bolts cannot be fixed in place due to thread slippage. Utility Model Content

[0004] The purpose of the utility model is to provide a frame and a backlight source to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a frame, including a frame body, a top cover is arranged on the top of the frame body, a fixing component for fixing the position of the frame body is arranged on the bottom of the frame body, the fixing component includes a fixing frame, a placement groove is opened on the top of the fixing frame, the frame body is inserted and connected inside the placement groove, positioning grooves are opened symmetrically on both sides of the frame body, a positioning cam for fixing the position of the frame body is clamped inside the positioning groove, and a rotating part for rotating the positioning cam is arranged on the top of the positioning cam.

[0006] Preferably, the inner walls on both sides of the placement groove are symmetrically provided with installation grooves, the inner wall at the bottom of the installation groove is fixedly connected with a positioning block, the inner wall on one side of the positioning block is provided with a rotation groove, and the positioning cam is inserted and connected inside the rotation groove.

[0007] Preferably, the outer wall of the twist cap is centrally symmetrically provided with protrusions for increasing friction.

[0008] Preferably, the rotating member comprises a connecting block fixedly connected to the top end of the positioning cam, and a twist cap is fixedly connected to the top end of the connecting block.

[0009] Preferably, a connecting groove is provided on the inner wall of the top end of the rotating groove, and the connecting block is inserted and connected inside the connecting groove.

[0010] Preferably, an elastic block for pushing the positioning cam is provided at the bottom of the positioning cam.

[0011] Preferably, a fixing groove is provided on the inner wall at the bottom end of the rotating groove, and the elastic block is fixedly connected to the inner wall at the bottom end of the fixing groove.

[0012] Preferably, the rotating groove, the connecting groove and the fixing groove are interconnected.

[0013] Preferably, a receiving groove for receiving the positioning cam is provided on the inner wall of the front side of the installation groove.

[0014] A backlight source comprises a frame as described in any one of the preceding claims, and a light source, wherein the light source is arranged inside the frame.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model adopts the design of a fixing frame, a placement groove, a positioning groove, a positioning cam and a rotating member. When it is necessary to fix the position of the backlight source, the position of the fixing frame is first fixed by bolts, and then the frame is directly inserted into the placement groove, and one end of the positioning cam is driven by the rotating member to move into the positioning groove, and the position of the frame is fixed by the positioning cam. When the backlight source is maintained, the frame and the backlight source on the frame can be disassembled and installed by directly rotating the positioning cam driven by the rotating member. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0018] Figure 2 It is a front sectional structural schematic diagram of the utility model.

[0019] Figure 3 It is a schematic diagram of a partial side sectional structure of the utility model.

[0020] Figure 4 It is a partial front cross-sectional structural schematic diagram of the utility model.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the positioning cam of the utility model.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning block of the utility model.

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the utility model in top view.

[0024] In the figure: 1. frame; 2. top cover; 3. fixed frame; 4. placement slot; 5. positioning slot; 6. positioning cam; 7. installation slot; 8. positioning block; 9. rotation slot; 10. connecting block; 11. connecting slot; 12. twist cap; 13. fixing slot; 14. elastic block; 15. storage slot; 16. light source. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides Figure 1-7 A frame shown includes a frame body 1, a top cover 2 is arranged on the top of the frame body 1, a fixing component for fixing the position of the frame body 1 is arranged on the bottom of the frame body 1, the fixing component includes a fixing frame 3, a placement groove 4 is opened on the top of the fixing frame 3, the frame body 1 is inserted and connected inside the placement groove 4, positioning grooves 5 are symmetrically opened on both sides of the frame body 1, and a positioning cam 6 for fixing the position of the frame body 1 is clamped inside the positioning groove 5, and a rotating part for rotating the positioning cam 6 is arranged on the top of the positioning cam 6.

[0027] It should be noted that a light source for emitting light is arranged inside the set frame 1, and the top of the set top cover 2 is made of a transparent plastic material, such as polycarbonate, etc., which has high transparency and excellent impact resistance and heat resistance. When in use, the top cover 2 is fixed to the top of the frame 1 by bolts, and the light source inside the frame 1 is protected by the top cover 2. Holes for passing the bolts are provided at the four corners of the set fixed frame 3. When the position of the fixed frame 3 needs to be fixed, the fixed frame 3 is first moved to the desired position, and then the bolts are passed through the multiple holes in sequence, and the position of the fixed frame 3 is fixed by the bolts; the opened positioning groove 5 is adapted to the bottom of the frame 1. When the position of the frame 1 needs to be fixed, the bottom of the frame 1 is first inserted into the interior of the positioning groove 5, and then the positioning cam 6 is driven by the rotating member to move to the interior of the positioning groove 5 in sequence, and the positioning cam 6 is used to limit the frame 1 from being taken out of the positioning groove 5, thereby fixing the position of the frame 1.

[0028] Specifically, the inner walls on both sides of the placement groove 4 are symmetrically provided with installation grooves 7, the inner wall at the bottom of the installation groove 7 is fixedly connected with a positioning block 8, the inner wall on one side of the positioning block 8 is provided with a rotating groove 9, the positioning cam 6 is inserted and connected inside the rotating groove 9, the rotating part includes a connecting block 10 fixedly connected to the top of the positioning cam 6, the top of the connecting block 10 is fixedly connected with a twist cap 12, the outer wall of the twist cap 12 is symmetrically provided with protrusions for increasing friction, the inner wall at the top of the rotating groove 9 is provided with a connecting groove 11, the connecting block 10 is inserted and connected inside the connecting groove 11, and the inner wall on the front side of the installation groove 7 is provided with a storage groove 15 for storing the positioning cam 6.

[0029] It should be noted that the connection block 10 is used to connect the positioning cam 6 located inside the rotating groove 9 with the twist cap 12 located at the top of the positioning block 8, so that the top end of the positioning cam 6 is fitted with the inner wall of the top end of the rotating groove 9 but not fixed, and the bottom end of the twist cap 12 is fitted with the top end of the positioning block 8 but not fixed, and the area of ​​the horizontal transverse section of the opening of the connecting groove 11 is smaller than the area of ​​the horizontal transverse section of the twist cap 12 and the positioning cam 6, so that the twist cap 12 and the positioning cam 6 cannot pass through the connecting groove 11, thereby limiting the position of the connecting block 10 through the restriction of the twist cap 12, the positioning cam 6 and the connecting groove 11, so that it cannot The method is to move out of the connecting groove 11, and the movement of the twisting cap 12 and the positioning cam 6 is limited by the connecting block 10 that limits the movement. When the positioning cam 6 needs to be rotated, the twisting cap 12 located at the top of the positioning block 8 is used to drive the positioning cam 6 to rotate; the opened storage groove 15 is used to move one end of the positioning cam 6 out of the placement groove 4 when the frame 1 needs to be installed and removed. When the frame 1 is inserted into the placement groove 4 and the positioning groove 5 is aligned with the positioning cam 6, the positioning cam 6 is driven to rotate by the twisting cap 12, so that one end of the positioning cam 6 moves into the interior of the positioning groove 5, and the position of the frame 1 is fixed by the restriction of the positioning cam 6.

[0030] Specifically, an elastic block 14 for pushing the positioning cam 6 is provided at the bottom of the positioning cam 6, a fixed groove 13 is opened on the inner wall at the bottom end of the rotating groove 9, the rotating groove 9, the connecting groove 11 and the fixed groove 13 are interconnected, and the elastic block 14 is fixedly connected to the inner wall at the bottom end of the fixed groove 13.

[0031] It should be noted that the fixed groove 13 opened at the bottom of the rotating groove 9 is used to accommodate the elastic block 14, and the elastic block 14 is fixed inside the fixed groove 13 by glue; the elastic block 14 is made of rubber material, and the rubber material has a deformable property. When in use, the elastic block 14 is used to squeeze the positioning cam 6, and the positioning cam 6 is pushed upward by the elastic block 14, and the positioning cam 6 is clamped by the rotating groove 9 and the elastic block 14. The rubber material has a high friction coefficient on its surface. The friction coefficient refers to the friction resistance between the contact surfaces of two objects. The rubber material usually has a rough surface or a specific chemical composition. These characteristics make it generate greater friction when it comes into contact with other materials, and the rotation of the positioning cam 6 is limited by the elastic block 14.

[0032] A backlight source adopts the above frame and includes a light source 16 , which is arranged inside the frame 1 .

[0033] It should be noted that the frame 1 and the light source 16 are backlight sources of model L40-20-18. When in use, light is emitted by the light source 16 , and the light passes through the frame 1 through the transparent top cover 2 .

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A frame, comprising a frame body (1), wherein a top cover (2) is arranged on the top of the frame body (1), characterized in that: A fixing component for fixing the position of the frame (1) is arranged at the bottom of the frame (1), the fixing component comprising a fixing frame (3), a placement groove (4) is arranged at the top of the fixing frame (3), the frame (1) is inserted and connected inside the placement groove (4), positioning grooves (5) are symmetrically arranged on both sides of the frame (1), a positioning cam (6) for fixing the position of the frame (1) is clamped inside the positioning groove (5), and a rotating part for rotating the positioning cam (6) is arranged at the top of the positioning cam (6).

2. A frame according to claim 1, characterized in that: The inner walls on both sides of the placement groove (4) are symmetrically provided with mounting grooves (7), the inner wall at the bottom end of the mounting groove (7) is fixedly connected with a positioning block (8), the inner wall on one side of the positioning block (8) is provided with a rotation groove (9), and the positioning cam (6) is inserted and connected inside the rotation groove (9).

3. A frame according to claim 2, characterized in that: The rotating member comprises a connecting block (10) fixedly connected to the top end of the positioning cam (6), and a twist cap (12) is fixedly connected to the top end of the connecting block (10).

4. A frame according to claim 3, characterized in that: The outer wall of the twist cap (12) is centrally symmetrically provided with protruding blocks for increasing friction.

5. A frame according to claim 3, characterized in that: A connecting groove (11) is provided on the inner wall of the top end of the rotating groove (9), and the connecting block (10) is inserted and connected inside the connecting groove (11).

6. A frame according to claim 5, characterized in that: An elastic block (14) for pushing the positioning cam (6) is arranged at the bottom of the positioning cam (6).

7. A frame according to claim 6, characterized in that: A fixing groove (13) is provided on the inner wall at the bottom end of the rotating groove (9), and the elastic block (14) is fixedly connected to the inner wall at the bottom end of the fixing groove (13).

8. A frame according to claim 7, characterized in that: The rotating groove (9), the connecting groove (11) and the fixing groove (13) are interconnected.

9. A frame according to claim 2, characterized in that: The inner wall of the front side of the installation groove (7) is provided with a receiving groove (15) for receiving the positioning cam (6).

10. A backlight source, characterized in that: The backlight source comprises a frame according to any one of claims 1 to 9, and comprises a light source (16), wherein the light source (16) is arranged inside the frame (1).

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