Firm liquid crystal display screen

Abstract

The utility model relates to the technical field of liquid crystal display screens, and discloses a firm liquid crystal display screen which comprises a liquid crystal display screen body, fixing frames, connecting strips, fixing and connecting assemblies, a stabilizing plate and a mounting plate, the four corners of the liquid crystal display screen body are connected with the fixing frames in a sleeved mode, and the adjacent frames are fixedly connected through nuts by the connecting strips. A cross-shaped positioning end at the front end facilitates accurate butt joint, a fixed connecting assembly between two connecting strips comprises a first fixing frame, a first fixing piece and a first spring, the spring drives the fixing piece to penetrate through the positioning end to achieve rigid connection, a stabilizing plate on the back face of the display screen is fixed to the connecting strips through connecting columns, stress is dispersed, and a mounting plane is provided. A mounting assembly between the stabilizing plate and the mounting plate is composed of a second fixing piece and a second spring, a trapezoidal mounting block is matched with the second fixing piece in a clamping tooth mode, detachable elastic connection is achieved, and the liquid crystal display screen is convenient to replace and maintain.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, specifically a rugged liquid crystal display. Background Technology

[0002] LCD screens are widely used in industrial control, vehicle navigation, and outdoor display terminals due to their advantages such as low power consumption, high definition, and lightweight portability. In complex and ever-changing operating environments, such as mechanical vibrations in industrial sites, bumps and impacts in vehicle equipment, and drastic temperature changes in outdoor scenarios, the screens need to have excellent vibration resistance, shock resistance, and environmental adaptability to ensure stable operation and extend service life. Therefore, developing highly robust LCD screens has become the key to ensuring equipment reliability and meeting diverse application needs.

[0003] However, traditional LCD screens focus on optimizing display performance in their structural design, but have shortcomings in terms of protective structure. For example, conventional bezel and panel connection methods often use a single bolt for fixing, which lacks a fixing mechanism and is difficult to withstand strong impacts. The installation structure is mostly a rigid connection, which cannot effectively cope with the internal stress generated by thermal expansion and contraction, and is prone to panel cracking or display abnormalities. These technical defects not only reduce the service life of the display screen, but also make us propose a rugged LCD screen. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a rugged liquid crystal display screen that solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a rugged liquid crystal display screen, comprising:

[0008] A liquid crystal display screen, wherein fixed frames are fitted onto the four corners of the liquid crystal display screen, and connecting strips are connected between two adjacent fixed frames. The connecting strips are fixed to the back of the fixed frames by nuts. A fixed connecting component is provided between two connecting strips. A stabilizing plate is provided on the back of the liquid crystal display screen. The stabilizing plate is located on the back of the fixed connecting component. A mounting plate is provided on the back of the stabilizing plate.

[0009] A fixed connection assembly is disposed between two connecting strips on the back of the LCD screen. The fixed connection assembly includes a first fixed frame, a first fixing member and a first spring. The back of the first fixing member is provided with symmetrically distributed first springs. The first springs and the first fixing member are disposed inside the back of the first fixed frame and slide in cooperation.

[0010] A mounting assembly is disposed between a stabilizing plate and a mounting plate. The mounting assembly includes a second fixing member and a second spring. The second spring is disposed on the back of the second fixing member. The mounting assembly is disposed on both sides of the front end of the mounting plate and is symmetrically distributed on one side of the front end of the mounting plate.

[0011] Preferably, the four corners of the liquid crystal display screen are fitted with a fixed frame, and two threaded posts are provided on the back of the fixed frame. The end of the connecting strip is fitted onto one of the threaded posts and fixedly connected with a bolt. The front end of the connecting strip is provided with a positioning end, and the end face of the positioning end is cross-shaped.

[0012] Preferably, the fixed connection assembly consists of a first fixed frame, a first fixed member, and a first spring. The back of the first fixed frame has a fixed cavity, the front end of the first fixed member has symmetrically distributed fixed rods, the back of the first fixed member has symmetrically distributed first springs, and the first fixed member and the first spring are disposed inside the fixed cavity.

[0013] Preferably, the first fixing frame has the same end hole at both ends, the fixing rod at the front end of the first fixing member extends through the fixing cavity into the end hole, and the back of the first fixing member slides through the fixing cavity.

[0014] Preferably, the first fixing frame is fitted between two adjacent connecting strips, and the positioning ends of the two connecting strips fit tightly together. The positioning ends are set inside the end holes, and the fixing rod at the front end of the first fixing member passes through the positioning ends of the two connecting strips for fixed connection.

[0015] Preferably, the back of the connecting strip is provided with a connecting post, the stabilizing plate is provided on the back of the connecting strip, the connecting post passes through the stabilizing plate and is fixedly connected by a nut, the back of the first fixing frame passes through the stabilizing plate, and the end of the first fixing member passes through the end hole for sliding fit.

[0016] Preferably, the mounting assembly consists of a second fixing member and a second spring. The front end of the mounting plate is provided with mutually symmetrical second fixing frames. The front end of the second fixing frame is provided with a mounting cavity. The mounting assembly is disposed inside both ends of the second fixing frame, and the front end of the second fixing member extends through both ends of the second fixing frame into the mounting cavity.

[0017] Preferably, the back of the stabilizing plate is provided with mutually symmetrical mounting blocks. The mounting blocks have a trapezoidal cross-section and are slidably inserted into the mounting cavity at the front end of the second fixing frame. The front end of the second fixing member is fixedly installed by engaging the locking teeth of the mounting blocks.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, the present invention provides a rugged liquid crystal display screen, which has the following beneficial effects:

[0020] 1. This rugged LCD screen features a rigid frame formed by fixed bezels and connecting strips at the four corners. The cross-shaped positioning ends of the connecting strips, in conjunction with the fixing and connecting components, ensure precise installation while effectively securing the connection between the connecting strips using the elasticity of the first spring. This locks the fixed bezels and secures the LCD screen, preventing damage. The stabilizing plate on the back is fixed to the connecting strips via connecting posts, which evenly distributes the force and prevents localized stress concentration. Furthermore, the mounting components between the stabilizing plate and the mounting plate, utilizing the trapezoidal mounting block and the locking teeth of the second fixing component, along with the spring elasticity, not only enable detachable installation but also prevent panel damage caused by internal stress accumulation. The overall structure, through a combination of multi-level buffering and rigid fixing, significantly improves the screen's vibration resistance, impact resistance, and environmental adaptability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram showing the structural breakdown of this utility model;

[0023] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0024] Figure 4 This is a schematic diagram showing the disassembled structure of this utility model.

[0025] In the diagram: 1. LCD screen; 2. Fixed frame; 3. Connecting strip; 4. First fixed frame; 5. First fixing component; 6. First spring; 7. Stabilizing plate; 8. Mounting block; 9. Mounting plate; 10. Second fixing component; 11. Second spring; 12. Second fixed frame; 13. Positioning end; 14. Connecting post; 15. End hole; 16. Fixing cavity. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 A rugged liquid crystal display screen, comprising:

[0028] LCD screen 1, fixed frame 2 is fitted on the four corners of LCD screen 1, connecting strip 3 is connected between two adjacent fixed frame 2, the connecting strip 3 is fixed to the back of fixed frame 2 by nuts, fixed connection component is provided between two connecting strip 3, and a stabilizing plate 7 is provided on the back of LCD screen 1. The stabilizing plate 7 is located on the back of the fixed connection component, and a mounting plate 9 is provided on the back of the stabilizing plate 7.

[0029] A fixed connection assembly is provided between two connecting strips 3 on the back of the LCD screen 1. The fixed connection assembly includes a first fixed frame 4, a first fixing member 5 and a first spring 6. The back of the first fixing member 5 is provided with symmetrically distributed first springs 6. The first springs 6 and the first fixing member 5 are disposed inside the back of the first fixed frame 4 and slide in cooperation.

[0030] A mounting assembly is disposed between the stabilizing plate 7 and the mounting plate 9. The mounting assembly includes a second fixing member 10 and a second spring 11. The second spring 11 is disposed on the back of the second fixing member 10. The mounting assembly is disposed on both sides of the front end of the mounting plate 9, and the mounting assembly is symmetrically distributed on one side of the front end of the mounting plate 9.

[0031] Furthermore, a fixed frame 2 is fitted on the four corners of the LCD screen 1. Two threaded posts are provided on the back of the fixed frame 2. The end of the connecting strip 3 is fitted onto one of the threaded posts and fixed with bolts. The front end of the connecting strip 3 is provided with a positioning end 13. The end face of the positioning end 13 is cross-shaped, which realizes the precise positioning and stable assembly of the LCD screen frame and provides basic fixed protection for the screen.

[0032] Furthermore, the fixed connection assembly consists of a first fixed frame 4, a first fixing member 5, and a first spring 6. The back of the first fixed frame 4 has a fixed cavity 16. The front end of the first fixing member 5 has symmetrically distributed fixing rods. The back of the first fixing member 5 has symmetrically distributed first springs 6. The first fixing member 5 and the first spring 6 are located inside the fixed cavity 16, providing a stable fixing structure for the connection between the connecting strips 3 and ensuring that the frame connection is tight.

[0033] Furthermore, the first fixing frame 4 has the same end hole 15 at both ends. The fixing rod at the front end of the first fixing member 5 extends through the fixing cavity 16 into the end hole 15, and the back of the first fixing member 5 slides through the fixing cavity 16 to achieve through-fixing of the end positioning end 13 of the connecting strip 3, thereby enhancing the connection strength and stability.

[0034] Furthermore, the first fixing frame 4 is fitted between two adjacent connecting strips 3, and the positioning ends 13 at the ends of the two connecting strips 3 fit tightly together. The positioning ends 13 are set inside the end holes 15. The fixing rod at the front end of the first fixing member 5 passes through the positioning ends 13 at the ends of the two connecting strips 3 to fix them together, so as to firmly connect the connecting strips 3 and ensure the integrity and reliability of the external frame structure of the display screen.

[0035] Furthermore, a connecting post 14 is provided on the back of the connecting strip 3, and a stabilizing plate 7 is provided on the back of the connecting strip 3. The connecting post 14 passes through the stabilizing plate 7 and is fixedly connected by a nut. The back of the first fixing frame 4 passes through the stabilizing plate 7, and the end of the first fixing member 5 passes through the end hole 15 for sliding fit, so that the stabilizing plate 7 is firmly connected to the connecting strip 3, while providing installation space and support for the first fixing frame 4 and the first fixing member 5, and realizing force distribution.

[0036] Furthermore, the mounting assembly consists of a second fixing member 10 and a second spring 11. The front end of the mounting plate 9 is provided with a second fixing frame 12 that is symmetrical to each other. The front end of the second fixing frame 12 has an installation cavity. The mounting assembly is located inside both ends of the second fixing frame 12, and the front end of the second fixing member 10 extends through both ends of the second fixing frame 12 into the installation cavity, providing a connection base between the stabilizing plate 7 and the mounting plate 9, which facilitates subsequent installation operations.

[0037] Furthermore, the back of the stabilizing plate 7 is provided with symmetrical mounting blocks 8. The mounting blocks 8 have a trapezoidal cross-section. The mounting blocks 8 are slidably inserted into the mounting cavity at the front end of the second fixing frame 12. The front end of the second fixing member 10 is fixedly installed by engaging the teeth of the mounting blocks 8, thereby realizing the detachable fixed connection between the stabilizing plate 7 and the mounting plate 9, which facilitates installation and maintenance.

[0038] Structural Description:

[0039] LCD screen 1: It is the core display component. Its four corners are fitted with fixed frame 2, which is protected by the external frame structure and achieves stable display function.

[0040] Fixed frame 2: It fits around the four corners of the LCD screen 1, and has threaded posts on the back for connecting the connecting strip 3, forming the basic protective frame of the screen;

[0041] Connecting strip 3: connects to adjacent fixed frame 2, the end is fixed to the frame threaded post bolt, and the front cross-shaped positioning end 13 achieves precise assembly;

[0042] First fixing frame 4: Located between two connecting strips 3, with end holes 15 at both ends, and internal fixing cavity 16 for accommodating first fixing member 5 and first spring 6;

[0043] First fastener 5: Slides within the first fixed frame 4, with the front fixed rod passing through the positioning end 13 of the connecting strip 3 to enhance the frame connection's firmness;

[0044] First spring 6: Symmetrically disposed on the back of first fixing member 5 to provide sliding power and assist in achieving stable connection between connecting bars 3;

[0045] Stabilizing plate 7: Located on the back of connecting strip 3, fixed by connecting post 14, distributing the force, and providing an installation support plane for first fixed frame 4;

[0046] Mounting block 8: It is trapezoidal and located on the back of the stabilizing plate 7. It cooperates with the mounting cavity of the second fixing frame 12 to connect the stabilizing plate 7 and the mounting plate 9.

[0047] Mounting plate 9: Located on the back of the stabilizing plate 7, the front end of the second fixing frame 12 has a mounting cavity for mounting the second fixing member 10 and the second spring 11;

[0048] Second fastener 10: Slides within the second fixed frame 12 and engages with the locking teeth of the mounting block 8 to achieve detachable fixing of the stabilizing plate 7 and the mounting plate 9;

[0049] Second spring 11: Located on the back of second fixing member 10, providing elastic support to adapt to stress changes during installation;

[0050] Second fixed frame 12: Located at the front end of mounting plate 9, the internal mounting cavity is used to accommodate mounting components and realize the connection with the stabilizing plate 7;

[0051] Positioning end 13: Located at the front end of the connecting strip 3, it is cross-shaped and mates with the end hole 15 of the first fixing frame 4 to achieve precise positioning and connection;

[0052] Connecting post 14: Located on the back of connecting strip 3, it passes through the stabilizing plate 7 and is fixed with nuts to achieve a firm connection between the stabilizing plate 7 and connecting strip 3;

[0053] End hole 15: Located at both ends of the first fixing frame 4, used to insert the positioning end 13 of the connecting strip 3, and to cooperate with the first fixing member 5 to achieve fixation;

[0054] Fixed cavity 16: Located inside the back of the first fixed frame 4, it is used to accommodate the first fixing member 5 and the first spring 6, and provides sliding space.

[0055] Working principle: The LCD screen 1 has four corners secured by a fixed frame 2 for initial protection. Adjacent fixed frames 2 are connected by connecting strips 3. The ends of the connecting strips 3 are fixed to threaded posts on the back of the frame by nuts, forming a rectangular frame structure. The front end of the connecting strip 3 is designed with a cross-shaped positioning end 13 for precise docking of subsequent components. The fixed connection assembly between two connecting strips 3 consists of a first fixed frame 4, a first fixing member 5, and a first spring 6. The first fixed frame 4 has end holes 15 at both ends and a fixing cavity 16 inside. When the positioning end 13 is inserted into the end hole 15, the fixing rod at the front end of the first fixing member 5 passes through the positioning end 13 under the action of the first spring 6, achieving a rigid connection. A stabilizing plate 7 is provided on the back. The connecting post 14 on the back of the connecting strip 3 passes through the stabilizing plate and is fixed with a nut. The stabilizing plate 7 not only disperses stress but also provides a flat foundation for subsequent installation. The back of the first fixing frame 4 passes through the stabilizing plate 7. The end of the first fixing member 5 can slide in the end hole 15 to ensure that the components deform together without failure under impact. The installation component between the stabilizing plate 7 and the mounting plate 9 adopts the second fixing member 10 and the second spring 11. The second fixing frame 12 at the front end of the mounting plate 9 has an installation cavity. The trapezoidal mounting block 8 on the back of the stabilizing plate 7 slides into the installation cavity. The second fixing member 10 engages with the mounting block 8 under the action of the second spring 11 to achieve detachable fixing and prevent panel damage caused by internal stress accumulation.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rugged liquid crystal display screen, characterized in that: include: A liquid crystal display screen (1) is fitted with fixed frame (2) at the four corners of the liquid crystal display screen (1). A connecting strip (3) is connected between two adjacent fixed frame (2). The connecting strip (3) is fixed to the back of the fixed frame (2) by nuts. A fixed connecting component is provided between the two connecting strips (3). A stabilizing plate (7) is provided on the back of the liquid crystal display screen (1). The stabilizing plate (7) is located on the back of the fixed connecting component. A mounting plate (9) is provided on the back of the stabilizing plate (7). A fixed connection assembly is provided between two connecting strips (3) on the back of the LCD screen (1). The fixed connection assembly includes a first fixed frame (4), a first fixing member (5) and a first spring (6). The back of the first fixing member (5) is provided with symmetrically distributed first springs (6). The first springs (6) and the first fixing member (5) are located inside the back of the first fixed frame (4) and slide together. An installation assembly is provided between a stabilizing plate (7) and a mounting plate (9). The installation assembly includes a second fixing member (10) and a second spring (11). The second spring (11) is provided on the back of the second fixing member (10). The installation assembly is provided on both sides of the front end of the mounting plate (9), and the installation assembly is symmetrically distributed on one side of the front end of the mounting plate (9).

2. The rugged liquid crystal display screen according to claim 1, characterized in that: The LCD screen (1) has a fixed frame (2) on its four corners. The back of the fixed frame (2) has two threaded posts. The end of the connecting strip (3) is fitted onto one of the threaded posts and fixed with bolts. The front end of the connecting strip (3) has a positioning end (13) with a cross-shaped end face.

3. A rugged liquid crystal display screen according to claim 1, characterized in that: The fixed connection assembly consists of a first fixed frame (4), a first fixed member (5) and a first spring (6). The back of the first fixed frame (4) is provided with a fixed cavity (16). The front end of the first fixed member (5) is provided with symmetrically distributed fixed rods. The back of the first fixed member (5) is provided with symmetrically distributed first springs (6). The first fixed member (5) and the first spring (6) are located inside the fixed cavity (16).

4. A rugged liquid crystal display screen according to claim 3, characterized in that: The first fixing frame (4) has the same end hole (15) at both ends. The fixing rod at the front end of the first fixing member (5) extends through the fixing cavity (16) into the end hole (15), and the back of the first fixing member (5) slides through the fixing cavity (16).

5. A rugged liquid crystal display screen according to claim 4, characterized in that: The first fixing frame (4) is fitted between two adjacent connecting strips (3), and the positioning ends (13) at the ends of the two connecting strips (3) fit tightly together. The positioning ends (13) are set inside the end hole (15). The fixing rod at the front end of the first fixing member (5) passes through the positioning ends (13) at the ends of the two connecting strips (3) for fixed connection.

6. A rugged liquid crystal display screen according to claim 5, characterized in that: The back of the connecting strip (3) is provided with a connecting post (14), the stabilizing plate (7) is provided on the back of the connecting strip (3), the connecting post (14) passes through the stabilizing plate (7) and is fixedly connected by a nut, the back of the first fixing frame (4) passes through the stabilizing plate (7), and the end of the first fixing member (5) passes through the end hole (15) for sliding fit.

7. A rugged liquid crystal display screen according to claim 1, characterized in that: The mounting assembly consists of a second fixing member (10) and a second spring (11). The front end of the mounting plate (9) is provided with a second fixing frame (12) that is symmetrical to each other. The front end of the second fixing frame (12) is provided with a mounting cavity. The mounting assembly is located inside both ends of the second fixing frame (12), and the front end of the second fixing member (10) extends through both ends of the second fixing frame (12) into the mounting cavity.

8. A rugged liquid crystal display screen according to claim 7, characterized in that: The back of the stabilizing plate (7) is provided with symmetrical mounting blocks (8). The mounting blocks (8) have a trapezoidal cross section. The mounting blocks (8) are slidably inserted into the mounting cavity at the front end of the second fixing frame (12). The front end of the second fixing member (10) is fixedly installed with the mounting block (8) by engaging the teeth.

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