Liquid crystal display screen fixing device

Abstract

The utility model discloses a liquid crystal display screen fixing device which comprises a second installation frame arranged above a first installation frame, a second telescopic cavity is formed in the first installation frame, and a third locking bolt is arranged on one side of the first installation frame. The first telescopic cavity is formed in the first mounting frame and the second mounting frame, connecting plates are arranged on the two sides of the first mounting frame and the two sides of the second mounting frame correspondingly, and second locking bolts are arranged on one side of the first mounting frame and one side of the second mounting frame correspondingly; the fixing block is arranged at one end of the connecting plate, a connecting bolt is arranged on one side of the fixing block, the mounting plate of the fixing device is formed in a combined splicing mode, the mounting plate can stretch out and draw back according to the size of the liquid crystal display screen, and the four corners of the mounting plate are arranged at the four corners of the liquid crystal display screen; and the liquid crystal display screens with different sizes can be fixedly mounted conveniently, so that the fixed liquid crystal display screens are uniformly stressed, and the fixing stability of the liquid crystal display screens is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display screen fixing, in particular to a liquid crystal display screen fixing device. Background Art

[0002] Liquid crystal display is a flat, thin display device consisting of a certain number of color or black and white pixels, placed in front of a light source or a reflective surface. Liquid crystal display has low power consumption, so it is favored by engineers. It is suitable for battery-powered electronic devices and a type of display used in digital clocks and many portable computers. The principle is to use electric current to stimulate liquid crystal molecules to produce points, lines, and surfaces, which cooperate with the back light tube to form a picture. Liquid crystal display is relatively fragile and needs to be fixed and installed with the help of a fixing device when in use.

[0003] The Chinese patent publication number is CN20861999U, and the authorization announcement date is March 19, 2019. A liquid crystal display fixing device includes a base plate and a sleeve, the inner wall of the sleeve is glued with a rubber sleeve, the interior of the sleeve is provided with a bracket, the outer surface circumference of the rubber sleeve is in contact with the cylinder, a one-way valve is provided at the center of the cushion block, a spring is provided below the cushion block, and the upper and lower ends of the spring are respectively in contact with the cushion block and the base plate, a round tube is welded on the upper surface of the cushion block, a round hole is provided on the outer surface of the round tube, a top block is welded on the upper end of the round tube, and rubber rings are glued to the four corners of the surface of the base plate. The liquid crystal display fixing device can push the cushion block downward to move through the top block, so that the base plate is stably fixed on the surface of the desktop, and the user can rotate the orientation of the liquid crystal display by rotating the bracket, so that the user can adjust the orientation of the liquid crystal display conveniently.

[0004] The existing fixing device directly uses a square mounting plate to fit the back of the LCD screen for connection. When fixing a large-size LCD screen, a square mounting plate of a fixed size is used to fix the LCD screen. The load at the stress point of the LCD screen is large, which can easily cause the fixed LCD screen to fall during use, reducing the use effect of the fixing device and failing to meet the use requirements. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid crystal display screen fixing device to solve the problem that the existing fixing device proposed in the above background technology directly uses a square mounting plate to fit the back of the liquid crystal display screen for connection. When a large-sized liquid crystal display screen is fixed, a square mounting plate of a fixed size is used to fix the liquid crystal display screen. The load at the force point of the liquid crystal display screen is large, which may easily cause the fixed liquid crystal display screen to fall during use, thereby reducing the use effect of the fixing device and failing to meet the use requirements.

[0006] To achieve the above object, the utility model provides the following technical solution: a liquid crystal display screen fixing device, comprising a first mounting frame and a liquid crystal display screen, and further comprising:

[0007] A second mounting frame is arranged above the first mounting frame, and the cross-sections of the first mounting frame and the second mounting frame are both T-shaped, a second telescopic cavity is arranged inside the first mounting frame, and one end of the second mounting frame extends into the second telescopic cavity, the second mounting frame is slidably connected to the first mounting frame, a third locking bolt is arranged on one side of the first mounting frame, and the third locking bolt is threadedly connected to the first mounting frame;

[0008] A first telescopic cavity is arranged inside the first mounting frame and the second mounting frame, a connecting plate is arranged on both sides of the first mounting frame and the second mounting frame, and one end of the connecting plate extends into the first telescopic cavity, the connecting plate is slidably connected to the first mounting frame and the second mounting frame, a second locking bolt is arranged on one side of the first mounting frame and the second mounting frame, and the second locking bolt is screwed to the first mounting frame and the second mounting frame;

[0009] A fixing block is arranged at one end of the connecting plate, and the fixing block and the connecting plate are arranged as a whole. A mounting hole is arranged on the back of the liquid crystal display screen, and a connecting bolt is arranged on one side of the fixing block, and the connecting bolt is arranged corresponding to the mounting hole.

[0010] Preferably, a U-shaped connecting seat is provided on one side of the first mounting frame, and the U-shaped connecting seat is fixedly connected to the first mounting frame, a supporting frame is provided on one side of the U-shaped connecting seat, a connecting rod assembly is provided on the supporting frame, and the connecting rod assembly is fixedly connected to the supporting frame, both ends of the connecting rod assembly are rotatably connected to the U-shaped connecting seat, bearings are provided at the contact points between the two ends of the connecting rod assembly and the U-shaped connecting seat, springs are provided on both sides of the support frame, and the springs are provided on the outside of the connecting rod assembly, the springs are slidably connected to the connecting rod assembly, and both ends of the springs are respectively fitted with the supporting frame and the U-shaped connecting seat.

[0011] Preferably, a rubber pad is provided on the inner side of the fixing block, and the rubber pad is connected to the fixing block as a whole.

[0012] Preferably, a support tube is provided below the support frame, a third telescopic cavity is provided inside the support tube, and one end of the support frame extends to the inside of the third telescopic cavity, the support frame is slidably connected to the support tube, a first locking bolt is provided on one side of the support tube, and the first locking bolt is threadedly connected to the support tube, a base is provided below the support tube, and the base is fixedly connected to the support tube, a non-slip pad is provided at the lower end of the base, and the non-slip pad is connected to the base as a whole.

[0013] Preferably, rolling grooves are provided on the side walls of the support frame, the second mounting frame and the connecting plate, and balls are provided on the inner walls of the first telescopic cavity, the second telescopic cavity and the third telescopic cavity. There are at least four balls, one end of the ball extends to the inside of the rolling groove, and the ball is rollingly connected to the support tube, the support frame, the first mounting frame, the second mounting frame and the connecting plate.

[0014] Preferably, grooves are provided on the inner walls of the first telescopic cavity, the second telescopic cavity and the third telescopic cavity, and the grooves are provided corresponding to the first locking bolt, the second locking bolt and the third locking bolt. A pressure plate is provided inside the groove, and the pressure plate is rotatably connected to one end of the first locking bolt, the second locking bolt and the third locking bolt.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model device is provided with a first mounting frame, a second mounting frame, a connecting plate, a fixing block and a connecting bolt. The first mounting frame is movably connected with the second mounting frame, and the width of the fixing structure can be changed. The connecting plate is movably connected with the first mounting frame and the second mounting frame, and the length of the fixing structure can be changed. The fixing block is placed at the four corners of the LCD screen, and the fixing block is connected to the LCD screen using the connecting bolt, so that LCD screens of different sizes can be fixed conveniently and the stability of the fixed LCD screen can be ensured.

[0017] 2. The utility model device is provided with a U-shaped connecting seat, a support frame, a connecting rod assembly and a spring. The U-shaped connecting seat and the support frame are rotatably connected by means of the connecting rod assembly, which can not only support the fixed structure, but also change the angle of the fixed structure to achieve the angle adjustment of the liquid crystal display screen. The spring applies thrust to the support frame to fix the liquid crystal display screen with the adjusted angle;

[0018] 3. The utility model device, through the arrangement of the support tube and the first locking bolt, the support tube and the support frame form a support structure, and the support tube and the support frame are movably connected, the length of the support structure can be changed, and the height of the fixed liquid crystal display screen can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a diagram showing the connection relationship between the liquid crystal display screen and the second mounting frame of the utility model;

[0021] Figure 3 This is a connection diagram of the first mounting bracket and the second mounting bracket of the utility model;

[0022] Figure 4 This is a diagram showing the connection relationship between the support frame and the support tube of the utility model;

[0023] Figure 5 For the utility model Figure 2 A partial enlarged view of area A.

[0024] In the figure: 1. base; 2. support tube; 3. support frame; 4. first mounting frame; 5. second mounting frame; 6. first locking bolt; 7. connecting plate; 8. fixing block; 9. connecting bolt; 10. LCD screen; 11. second locking bolt; 12. U-shaped connecting seat; 13. third locking bolt; 14. mounting hole; 15. rubber pad; 16. first telescopic cavity; 17. second telescopic cavity; 18. anti-skid pad; 19. third telescopic cavity; 20. ball; 21. rolling groove; 22. connecting rod assembly; 23. bearing; 24. spring; 25. groove; 26. pressure plate. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-5 The utility model provides an embodiment: a liquid crystal display screen fixing device, including a first mounting frame 4 and a liquid crystal display screen 10, and also including:

[0027] The second mounting frame 5 is arranged above the first mounting frame 4, and the cross-sections of the first mounting frame 4 and the second mounting frame 5 are both T-shaped. The first mounting frame 4 is provided with a second telescopic cavity 17 inside, and one end of the second mounting frame 5 extends into the second telescopic cavity 17. The second mounting frame 5 is slidably connected with the first mounting frame 4. A third locking bolt 13 is provided on one side of the first mounting frame 4, and the third locking bolt 13 is threadedly connected with the first mounting frame 4;

[0028] A first telescopic cavity 16 is arranged inside the first mounting frame 4 and the second mounting frame 5. A connecting plate 7 is arranged on both sides of the first mounting frame 4 and the second mounting frame 5, and one end of the connecting plate 7 extends to the inside of the first telescopic cavity 16. The connecting plate 7 is slidably connected to the first mounting frame 4 and the second mounting frame 5. A second locking bolt 11 is arranged on one side of the first mounting frame 4 and the second mounting frame 5, and the second locking bolt 11 is screwed to the first mounting frame 4 and the second mounting frame 5;

[0029] A fixing block 8 is arranged at one end of the connecting plate 7, and the fixing block 8 and the connecting plate 7 are arranged as a whole. A mounting hole 14 is arranged on the back of the liquid crystal display screen 10, and a connecting bolt 9 is arranged on one side of the fixing block 8, and the connecting bolt 9 is arranged corresponding to the mounting hole 14.

[0030] During use: loosen the third locking bolt 13 and pull the second mounting bracket 5, adjust the distance between the second mounting bracket 5 and the first mounting bracket 4 to a suitable width for the LCD screen 10, then use the third locking bolt 13 to lock the second mounting bracket 5, loosen the second locking bolt 11 and pull the connecting plate 7, place the fixing block 8 on one side of the mounting hole 14 on the back of the LCD screen 10, then use the second locking bolt 11 to lock the connecting plate 7, use the connecting bolt 9 to connect the fixing block 8 to the LCD screen 10, and fix the LCD screen 10.

[0031] See also Figure 1 and Figure 4 A U-shaped connecting seat 12 is provided on one side of the first mounting frame 4, and the U-shaped connecting seat 12 is fixedly connected to the first mounting frame 4, a support frame 3 is provided on one side of the U-shaped connecting seat 12, a connecting rod assembly 22 is provided on the support frame 3, and the connecting rod assembly 22 is fixedly connected to the support frame 3, both ends of the connecting rod assembly 22 are rotatably connected to the U-shaped connecting seat 12, and bearings 23 are provided at the contact points between the two ends of the connecting rod assembly 22 and the U-shaped connecting seat 12, and springs 24 are provided on both sides of the support frame 3, and the springs 24 are provided on the connecting rods. On the outside of the component 22, the spring 24 is slidably connected to the connecting rod component 22, and the two ends of the spring 24 are respectively fitted with the support frame 3 and the U-shaped connecting seat 12. The U-shaped connecting seat 12 is rotatably connected to the support frame 3 through the connecting rod component 22, which can not only support the fixed structure, but also realize the rotation adjustment of the fixed LCD screen 10 to change the inclination angle of the LCD screen 10. The spring 24 applies a thrust to the support frame 3, and the support frame 3 is fixed under the action of the thrust, thereby ensuring the stability of the LCD screen 10 after rotation.

[0032] See also Figure 1 and Figure 2 A rubber pad 15 is arranged on the inner side of the fixing block 8 , and the rubber pad 15 is connected to the fixing block 8 as a whole, so that the rubber pad 15 plays a protective role on the connection between the fixing block 8 and the liquid crystal display screen 10 .

[0033] See also Figure 1 and Figure 4 A support tube 2 is arranged below the support frame 3, a third telescopic cavity 19 is arranged inside the support tube 2, and one end of the support frame 3 extends to the inside of the third telescopic cavity 19, the support frame 3 is slidably connected with the support tube 2, a first locking bolt 6 is arranged on one side of the support tube 2, and the first locking bolt 6 is threadedly connected with the support tube 2, a base 1 is arranged below the support tube 2, and the base 1 is fixedly connected with the support tube 2, a non-slip pad 18 is arranged at the lower end of the base 1, and the non-slip pad 18 is connected to the base 1 as a whole, and a support structure is formed by the support tube 2 and the support frame 3, which supports the fixed structure, and the fixed block 8 is movably connected to the support frame 3 to change the length of the support structure, and then the height of the fixed LCD screen 10 is adjusted.

[0034] See also Figure 2 , Figure 4 and Figure 5 Rolling grooves 21 are arranged on the side walls of the support frame 3, the second mounting frame 5 and the connecting plate 7, and balls 20 are arranged on the inner walls of the first telescopic cavity 16, the second telescopic cavity 17 and the third telescopic cavity 19. At least four balls 20 are arranged, and one end of the ball 20 extends to the inside of the rolling groove 21, and the ball 20 is rollingly connected with the support tube 2, the support frame 3, the first mounting frame 4, the second mounting frame 5 and the connecting plate 7. The ball 20 can reduce the telescopic resistance and can smoothly pull the support frame 3, the second mounting frame 5 and the connecting plate 7.

[0035] See also Figure 2 , Figure 4 and Figure 5 A groove 25 is provided on the inner wall of the first telescopic cavity 16, the second telescopic cavity 17 and the third telescopic cavity 19, and the groove 25 is corresponding to the first locking bolt 6, the second locking bolt 11 and the third locking bolt 13. A pressure plate 26 is provided inside the groove 25, and the pressure plate 26 is rotatably connected to one end of the first locking bolt 6, the second locking bolt 11 and the third locking bolt 13. The pressure plate 26 can increase the force area, better fix the support frame 3, the second mounting frame 5 and the connecting plate 7, and improve the overall stability.

[0036] Working principle: according to the size of the LCD screen 10, loosen the third locking bolt 13 and pull the second mounting frame 5, adjust the distance between the second mounting frame 5 and the first mounting frame 4 to a suitable width of the LCD screen 10, and then use the third locking bolt 13 to lock the second mounting frame 5, loosen the second locking bolt 11 and pull the connecting plate 7, place the fixing block 8 on one side of the mounting hole 14 on the back of the LCD screen 10, and then use the second locking bolt 11 to lock the connecting plate 7, and use the connecting bolt 9 to connect the fixing block 8 to the LCD screen 10 to fix the LCD screen 10; with the help of the connecting rod The component 22 rotatably connects the U-shaped connecting seat 12 with the support frame 3, which can not only support the fixed structure, but also realize the rotation adjustment of the fixed LCD screen 10 to change the inclination angle of the LCD screen 10. The spring 24 applies a thrust to the support frame 3, and the support frame 3 is fixed under the action of the thrust to ensure the stability of the LCD screen 10 after rotation; the support tube 2 and the support frame 3 constitute a supporting structure, which supports the fixed structure. The fixed block 8 is movably connected to the support frame 3 to change the length of the supporting structure, and then the height of the fixed LCD screen 10 is adjusted.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] 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. A liquid crystal display screen fixing device, comprising a first mounting frame (4) and a liquid crystal display screen (10), characterized in that: Also includes: A second mounting frame (5) is arranged above the first mounting frame (4), and the cross-sections of the first mounting frame (4) and the second mounting frame (5) are both T-shaped, a second telescopic cavity (17) is arranged inside the first mounting frame (4), and one end of the second mounting frame (5) extends into the second telescopic cavity (17), the second mounting frame (5) is slidably connected to the first mounting frame (4), a third locking bolt (13) is arranged on one side of the first mounting frame (4), and the third locking bolt (13) is threadedly connected to the first mounting frame (4); A first telescopic cavity (16) is arranged inside the first mounting frame (4) and the second mounting frame (5); connecting plates (7) are arranged on both sides of the first mounting frame (4) and the second mounting frame (5); one end of the connecting plate (7) extends into the first telescopic cavity (16); the connecting plate (7) is slidably connected to the first mounting frame (4) and the second mounting frame (5); a second locking bolt (11) is arranged on one side of the first mounting frame (4) and the second mounting frame (5); and the second locking bolt (11) is screw-connected to the first mounting frame (4) and the second mounting frame (5); A fixing block (8) is arranged at one end of the connecting plate (7), and the fixing block (8) and the connecting plate (7) are arranged as a whole; a mounting hole (14) is arranged at the back of the liquid crystal display screen (10); a connecting bolt (9) is arranged at one side of the fixing block (8), and the connecting bolt (9) and the mounting hole (14) are arranged correspondingly.

2. A liquid crystal display screen fixing device according to claim 1, characterized in that: A U-shaped connecting seat (12) is provided on one side of the first mounting frame (4), and the U-shaped connecting seat (12) is fixedly connected to the first mounting frame (4); a support frame (3) is provided on one side of the U-shaped connecting seat (12); a connecting rod assembly (22) is provided on the support frame (3), and the connecting rod assembly (22) is fixedly connected to the support frame (3); both ends of the connecting rod assembly (22) are rotatably connected to the U-shaped connecting seat (12); bearings (23) are provided at the contact points between the two ends of the connecting rod assembly (22) and the U-shaped connecting seat (12); springs (24) are provided on both sides of the support frame (3), and the springs (24) are provided outside the connecting rod assembly (22); the springs (24) are slidably connected to the connecting rod assembly (22), and the two ends of the spring (24) are respectively in contact with the support frame (3) and the U-shaped connecting seat (12).

3. The liquid crystal display screen fixing device according to claim 1, characterized in that: A rubber pad (15) is provided on the inner side of the fixing block (8), and the rubber pad (15) and the fixing block (8) are connected as a whole.

4. The liquid crystal display screen fixing device according to claim 2, characterized in that: A support tube (2) is arranged below the support frame (3), a third telescopic cavity (19) is arranged inside the support tube (2), and one end of the support frame (3) extends into the third telescopic cavity (19), the support frame (3) is slidably connected to the support tube (2), a first locking bolt (6) is arranged on one side of the support tube (2), and the first locking bolt (6) is threadedly connected to the support tube (2), a base (1) is arranged below the support tube (2), and the base (1) is fixedly connected to the support tube (2), and an anti-skid pad (18) is arranged at the lower end of the base (1), and the anti-skid pad (18) is connected to the base (1) as a whole.

5. The liquid crystal display screen fixing device according to claim 2, characterized in that: Rolling grooves (21) are arranged on the side walls of the support frame (3), the second mounting frame (5) and the connecting plate (7), and balls (20) are arranged on the inner walls of the first telescopic cavity (16), the second telescopic cavity (17) and the third telescopic cavity (19), at least four balls (20) are arranged, one end of the ball (20) extends to the inside of the rolling groove (21), and the ball (20) is rollingly connected to the support tube (2), the support frame (3), the first mounting frame (4), the second mounting frame (5) and the connecting plate (7).

6. The liquid crystal display screen fixing device according to claim 1, characterized in that: The inner walls of the first telescopic cavity (16), the second telescopic cavity (17) and the third telescopic cavity (19) are all provided with grooves (25), and the grooves (25) are all provided correspondingly to the first locking bolt (6), the second locking bolt (11) and the third locking bolt (13). A pressing plate (26) is provided inside the grooves (25), and the pressing plate (26) is rotatably connected to one end of the first locking bolt (6), the second locking bolt (11) and the third locking bolt (13).

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