Spliced liquid crystal display screen

Abstract

The utility model relates to the technical field of liquid crystal display screens, and discloses a spliced liquid crystal display screen which comprises single display screens, top connecting holes and bottom connecting holes, and the bottom connecting holes are communicated with limiting holes. Side clamping columns are additionally arranged on the two sides of each connecting cylinder, guide columns are inserted into the tops of the connecting cylinders, and reset springs sleeve the bottoms of the guide columns; and telescopic rods are installed in inner cavities of the fixing cylinders, the surfaces of the telescopic ends of the fixing cylinders are sleeved with extrusion springs, and the telescopic ends of the telescopic rods penetrate through the inner walls of the fixing cylinders, extend outwards and are connected with limiting heads. According to the splicing type liquid crystal display screen, when the single display screens are separated from the fixing cylinder, the guide columns can be pressed downwards to extrude the reset springs, the side clamping columns are retracted into the inner cavities of the connecting cylinder bodies and separated from the inner walls of the top connecting holes, and the connecting cylinder bodies are separated from the fixing cylinder and the top connecting holes; and therefore, the fixing cylinder and the top connecting hole can be disassembled and assembled conveniently.

Description

Technical Field

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

[0002] Liquid crystal display is a type of flat panel display, mainly used for screen display of television and computer. Its advantages include low power consumption and small size. Liquid crystal display uses liquid crystal solution in two polarized materials, and changes the arrangement of molecules inside the liquid crystal material through voltage to achieve the purpose of light shielding and light transmission, so as to display images with different depths and staggered patterns. If a three-primary color filter layer is added, color images can be displayed. Spliced ​​liquid crystal display, also known as liquid crystal splicing screen, is a single-chip microcomputer system that uses LCD backlight and uses liquid crystal screen as a display device.

[0003] Common spliced ​​LCD screens are usually composed of LCD panels, power boards, spliced ​​motherboards, shells, wire accessories, control systems, and signal processing equipment. Install multiple sets of spliced ​​screens on a bracket, use network cables as control cables, conduct power-on tests on unit splicing, and connect all relevant control cables, including video, HDMI input / output cables, control network cables, etc. This is a common structure and usage of spliced ​​LCD screens. Traditional spliced ​​LCD screens cannot reduce the splicing gaps between spliced ​​screens when multiple sets of LCD screens are spliced ​​together, which can easily lead to dust accumulation, poor observation results, and unclear display of the screen, affecting use. For example, patent number CN211016344U discloses a spliced ​​LCD screen, in which a protrusion and a limit rod are arranged on the top of the display screen unit, and a limit hole is opened at the bottom of the display screen unit. The display screen units are inserted along the side wall of the fixing plate in sequence, and the limit rod at the lower end is received in the protrusion, and the protrusion extends into the limit hole at the upper end. The limit rod extends out under the elastic force of the first spring, thereby fixing the two display screen units, making the connection between the display screen units tighter and improving the observation effect. However, in this way, since the protrusion and the limit rod are fixed on the top of the display screen unit and cannot be removed, the overall viewing effect and aesthetics of the display screen are affected when it is used, and it is also impossible to install protective structures such as protective plates on the outside of the display screen. For this reason, a spliced ​​LCD screen is proposed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a spliced ​​liquid crystal display screen to solve the technical problem that the protrusions and the limit rods are fixed on the top of the display screen unit and cannot be removed.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a spliced ​​liquid crystal display screen, comprising:

[0008] A single display screen, and positioning side grooves arranged at the front and rear ends of one side of the single display screen, and positioning side blocks are installed at the front and rear ends of the other side of the single display screen, and the top and bottom of the single display screen are respectively provided with a top connection hole and a bottom connection hole, and the bottom connection holes are all connected to the limiting holes;

[0009] The connecting cylinder is arranged in the inner cavity of the top connecting hole, and side clamping columns are added on both sides of the connecting cylinder. The top of the connecting cylinder is inserted with a guide column, and the bottom of the guide column is convex in design and is sleeved with a reset spring, and the bottom of the inner cavity of the connecting cylinder is concave in design;

[0010] The fixed cylinder is arranged just above the top of the connecting cylinder, and the inner cavity of the fixed cylinder is equipped with a telescopic rod, and the telescopic end surface of the telescopic rod is sleeved with an extrusion spring, and the telescopic end of the telescopic rod extends outward through the inner wall of the fixed cylinder and is connected to a limit head, and the limit head corresponds to the limit hole. When multiple groups of single display screens are spliced, the positioning side block is inserted into the corresponding limit hole, and the connecting cylinder is inserted into the inside of the bottom connection hole, and the telescopic end of the telescopic rod drives the limit head to be inserted into the inside of the corresponding limit hole under the action of the extrusion spring. When the single display screen is separated from the fixed cylinder, the guide column is pressed down to squeeze the reset spring, and the side clamping column is retracted into the inner cavity of the connecting cylinder and separated from the inner wall of the top connection hole, so as to separate the connecting cylinder from the fixed cylinder and the top connection hole. On the one hand, it is convenient to disassemble and assemble the fixed cylinder and the top connection hole; on the other hand, the limit head can be rotated and misaligned with the limit hole to ensure the stability of the connection between the two groups of single display screens.

[0011] Preferably, a connection protrusion is installed at the center of the back of the single display screen, and a connection seat is additionally provided on the back of the single display screen, and the connection seat is designed as a whole in a U-shape. The single display screen can be spliced ​​on the connection seat, and the single display screen is connected to the connection seat through the connection protrusion.

[0012] Preferably, both sides and the center of the front side of the connection seat are longitudinally provided with connection grooves, which correspond to the corresponding connection protrusions. The single display screen is connected by inserting the connection protrusions into the connection grooves of the connection seat.

[0013] Preferably, connection plates are installed around the back of the connection seat, and connection holes are evenly opened on the surface of the connection plates. The connection seat can be connected to the corresponding structure through the connection plates and the connection holes.

[0014] Preferably, bidirectional screws are transversely mounted at the upper and lower parts of the back center of the connecting seat, and there are three sets of bidirectional screws that are rotatably connected to each other. The three sets of bidirectional screws rotate on the back of the connecting seat.

[0015] Preferably, both sides of the outer surface of the bidirectional lead screw are sleeved with sliding blocks, and the front of the sliding blocks is installed with cylindrical clamping rods, which correspond to the corresponding connecting protrusions. A rotating side handle is added to the lower center of one side of the connecting seat, and is coaxially connected with the corresponding bidirectional lead screw. The rotating side handle can drive the three sets of bidirectional lead screws to rotate on the connecting seat, and the sliding blocks on the three sets of bidirectional lead screws drive the cylindrical clamping rods to move toward each other and are clamped and connected with the corresponding connecting protrusions, thereby fixing the single display screen and ensuring the stability of the connection between the single display screen and the connecting seat.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a spliced ​​liquid crystal display screen having the following features:

[0018] Beneficial effects:

[0019] The spliced ​​liquid crystal display screen is configured such that when multiple groups of single display screens are spliced, the positioning side blocks are inserted into the corresponding limiting holes, and the connecting cylinder is inserted into the bottom connecting hole. The telescopic end of the telescopic rod drives the limiting head to be inserted into the corresponding limiting hole under the action of the extrusion spring. When the single display screen is separated from the fixed cylinder, the guide column is pressed down to squeeze the reset spring, and the side clamping column is retracted into the inner cavity of the connecting cylinder and separated from the inner wall of the top connecting hole, so that the connecting cylinder is separated from the fixed cylinder and the top connecting hole. In this way, on the one hand, it is convenient to disassemble and assemble the fixed cylinder and the top connecting hole; on the other hand, the limiting head can be rotated and misaligned with the limiting hole, thereby ensuring the stability of the connection between the two groups of single display screens. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the single display screen of the utility model when viewed from the right side after being cut away;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting cylinder and the fixed cylinder of the utility model;

[0023] Figure 4 This is a schematic diagram of the right side structure of the connecting seat of the utility model;

[0024] Figure 5 This is a schematic diagram of the bidirectional lead screw and its connection structure of the utility model.

[0025] In the figure: 1. Single display screen; 2. Positioning side groove; 3. Positioning side block; 4. Top connecting hole; 5. Connecting cylinder; 6. Guide column; 7. Side clamping column; 8. Reset spring; 9. Fixed cylinder; 10. Telescopic rod; 11. Extrusion spring; 12. Limiting head; 13. Bottom connecting hole; 14. Limiting hole; 15. Connecting protrusion; 16. Connecting seat; 17. Connecting groove; 18. Connecting disk; 19. Bidirectional screw; 20. Cylindrical clamping rod; 21. Rotating side handle. DETAILED DESCRIPTION

[0026] 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.

[0027] The utility model provides a technical solution, a spliced ​​liquid crystal display screen, including: Figure 1 , Figure 2 , a single display screen 1, and a positioning side groove 2 arranged at the front and rear ends of one side of the single display screen 1, and a positioning side block 3 is installed at the front and rear ends of the other side of the single display screen 1, and a top connection hole 4 and a bottom connection hole 13 are respectively opened at the top and bottom of the single display screen 1, and the bottom connection holes 13 are connected to the limiting holes 14;

[0028] See also Figure 3 , a connecting cylinder 5 is arranged in the inner cavity of the top connecting hole 4, and side clamping columns 7 are added on both sides of the connecting cylinder 5, and a guide column 6 is inserted at the top of the connecting cylinder 5, and the bottom of the guide column 6 is convex in design, and a reset spring 8 is sleeved, and the bottom of the inner cavity of the connecting cylinder 5 is concave in design;

[0029] The fixed cylinder 9 is arranged just above the top of the connecting cylinder 5, and the inner cavity of the fixed cylinder 9 is installed with a telescopic rod 10, and the telescopic end surface of the telescopic rod 10 is sleeved with an extrusion spring 11, and the telescopic end of the telescopic rod 10 extends outward through the inner wall of the fixed cylinder 9 and is connected to a limit head 12, and the limit head 12 corresponds to the limit hole 14. When multiple groups of single display screens 1 are spliced ​​together, the positioning side blocks 3 are inserted into the corresponding limiting holes 14, and the connecting cylinder 5 is inserted into the bottom connecting hole 13. The telescopic end of the telescopic rod 10 drives the limiting head 12 to be inserted into the corresponding limiting hole 14 under the action of the extrusion spring 11. When the single display screen 1 is separated from the fixed cylinder 9, the guide column 6 is pressed down to squeeze the reset spring 8, and the side clamping column 7 is retracted into the inner cavity of the connecting cylinder 5 and separated from the inner wall of the top connecting hole 4, so that the connecting cylinder 5 is separated from the fixed cylinder 9 and the top connecting hole 4. On the one hand, it is convenient to disassemble and assemble the fixed cylinder 9 and the top connecting hole 4; on the other hand, the limiting head 12 can be rotated and misaligned with the limiting hole 14 to ensure the stability of the connection between the two groups of single display screens 1.

[0030] See also Figure 2 A connection protrusion 15 is installed at the center of the back of the single display screen 1, and a connection seat 16 is additionally provided on the back of the single display screen 1. The connection seat 16 is designed in a U shape. The single display screen 1 can be spliced ​​on the connection seat 16, and the single display screen 1 is connected to the connection seat 16 through the connection protrusion 15.

[0031] See also Figure 4 , both sides and the center of the front side of the connection seat 16 are longitudinally provided with connection grooves 17, which correspond to the corresponding connection protrusions 15. The single display screen 1 is connected by inserting the connection protrusions 15 into the connection grooves 17 of the connection seat 16. The back side of the connection seat 16 is provided with connection plates 18, and connection holes are evenly provided on the surface of the connection plates 18. The connection seat 16 can be connected to the corresponding structure through the connection plates 18 and the connection holes.

[0032] See also Figure 5Bidirectional lead screws 19 are transversely installed at the upper and lower parts of the center position of the back of the connecting seat 16, and there are three groups of bidirectional lead screws 19, which are rotatably connected to each other. The three groups of bidirectional lead screws 19 rotate on the back of the connecting seat 16. Sliding blocks are sleeved on both sides of the outer surface of the bidirectional lead screw 19, and cylindrical clamping rods 20 are installed on the front of the sliding blocks, which correspond to the corresponding connecting protrusions 15. A rotating side handle 21 is added to the lower center of one side of the connecting seat 16, and is coaxially connected to the corresponding bidirectional lead screw 19. The rotating side handle 21 can drive the three groups of bidirectional lead screws 19 to rotate on the connecting seat 16, and the sliding blocks on the three groups of bidirectional lead screws 19 drive the cylindrical clamping rods 20 to move toward each other, and are clamped and connected with the corresponding connecting protrusions 15, thereby fixing the single display screen 1 and ensuring the stability of the connection between the single display screen 1 and the connecting seat 16.

[0033] This solution: when multiple groups of single display screens 1 are spliced ​​together, the positioning side blocks 3 are inserted into the corresponding limiting holes 14, and the connecting cylinder 5 is inserted into the bottom connecting hole 13, and the telescopic end of the telescopic rod 10 drives the limiting head 12 to be inserted into the corresponding limiting hole 14 under the action of the extrusion spring 11. When the single display screen 1 is separated from the fixed cylinder 9, the guide column 6 is pressed down to squeeze the reset spring 8, and the side clamping column 7 is retracted into the inner cavity of the connecting cylinder 5 and separated from the inner wall of the top connecting hole 4, so that the connecting cylinder 5 is separated from the fixed cylinder 9 and the top connecting hole 4. The single display screen 1 is connected by inserting the connecting protrusion 15 into the connecting groove 17 of the connecting seat 16, and the connecting seat 16 can be connected to the corresponding structure through the connecting disk 18 and the connecting hole. The three sets of bidirectional lead screws 19 can be driven to rotate on the connecting seat 16 by rotating the side handle 21, and the sliding blocks on the three sets of bidirectional lead screws 19 drive the cylindrical clamping rods 20 to move toward each other and be clamped and connected with the corresponding connecting protrusions 15.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] 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 spliced ​​liquid crystal display screen, characterized in that: include: A single display screen (1), and positioning side grooves (2) arranged at the front and rear ends of one side of the single display screen (1), and positioning side blocks (3) are installed at the front and rear ends of the other side of the single display screen (1), and the top and bottom of the single display screen (1) are respectively provided with a top connection hole (4) and a bottom connection hole (13), and the bottom connection holes (13) are all connected to the limiting holes (14); The connecting cylinder (5) is arranged in the inner cavity of the top connecting hole (4), and side clamping columns (7) are added on both sides of the connecting cylinder (5). The top of the connecting cylinder (5) is inserted with a guide column (6), and the bottom of the guide column (6) is convex in design and is sleeved with a return spring (8), and the bottom of the inner cavity of the connecting cylinder (5) is concave in design; The fixed cylinder (9) is arranged just above the top of the connecting cylinder (5), and a telescopic rod (10) is installed in the inner cavity of the fixed cylinder (9), and a compression spring (11) is sleeved on the telescopic end surface of the telescopic rod (10), and the telescopic end of the telescopic rod (10) penetrates the inner wall of the fixed cylinder (9) to extend outward and is connected to a limit head (12), and the limit head (12) corresponds to the limit hole (14).

2. A spliced ​​liquid crystal display screen according to claim 1, characterized in that: A connection protrusion (15) is installed at the center position of the back of the single-body display screen (1), and a connection seat (16) is additionally provided on the back of the single-body display screen (1), and the connection seat (16) is designed as a U shape as a whole.

3. A spliced ​​liquid crystal display screen according to claim 2, characterized in that: Both sides of the front surface and the center of the connection seat (16) are longitudinally provided with connection grooves (17) corresponding to the corresponding connection protrusions (15).

4. The spliced ​​liquid crystal display screen according to claim 3, characterized in that: The back side of the connection seat (16) is equipped with connection plates (18) all around, and connection holes are evenly arranged on the surface of the connection plates (18).

5. The spliced ​​liquid crystal display screen according to claim 4, characterized in that: Bidirectional lead screws (19) are transversely mounted at the upper and lower parts of the back center of the connecting seat (16), and the bidirectional lead screws (19) are in three groups and are rotatably connected to each other.

6. The spliced ​​liquid crystal display screen according to claim 5, characterized in that: Sliding blocks are sleeved on both sides of the outer surface of the bidirectional lead screw (19), and cylindrical clamping rods (20) are installed on the front sides of the sliding blocks and correspond to the corresponding connecting protrusions (15). A rotating side handle (21) is added to the lower center part of one side of the connecting seat (16) and is coaxially connected to the corresponding bidirectional lead screw (19).

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