An explosion-proof liquid crystal display screen

Abstract

The present invention belongs to the technical field of liquid crystal display screens, and discloses an explosion-proof liquid crystal display screen, including a protective block, a mounting plate is arranged on one side of the protective block, a bolt is arranged on one side of the mounting plate, a first mounting groove is provided in the middle of the mounting plate, a fixing plate is arranged inside the first mounting groove, a buffer structure is provided on one side of the fixing plate, and a liquid crystal display screen is fixedly installed on one side thereof, an annular groove is provided outside the first mounting groove and inside the mounting plate, and a first groove is provided on one side of the protective block close to the mounting plate. The liquid crystal display screen is protected by the protective block and the protective plate, and the bolts can be protected at the same time, and then the plug rod is driven by the fixing block to pass through the mounting plate and the limiting block on one side of the protective block for insertion, and through the action of the limiting structure and the buffer structure, the mounting plate is fixed and the limiting block and the protective block are limited at the same time, thereby improving the stability of the mounting plate and the protective block during installation.

Description

Technical Field

[0001] The invention belongs to the technical field of liquid crystal display screens, and in particular relates to an explosion-proof liquid crystal display screen. Background Art

[0002] LCD screens are widely used in industries such as petroleum, petrochemicals, natural gas, chemicals, and coal mining. Explosive gases often exist in the production environment of these industries, leading to safety accidents such as gas station explosions and gas explosions. In chemical, textile, printing and dyeing facilities, there may be combustible dust that can cause fires. LCD screens can operate stably in these high-risk areas, provide necessary information interaction and monitoring functions, and effectively prevent safety accidents caused by dust. In addition, LCD screens can provide a stable and safe interactive interface in outdoor environments. Their strong impact resistance and protective performance enable them to withstand the influence of adverse external factors, ensuring the long-term and stable operation of the equipment.

[0003] However, in the prior art, the LCD screen is installed with bolts and a mounting plate. When the LCD screen is hit, the screen of the LCD screen will be broken, and the bolts will shake, and the mounting plate of the LCD screen will be damaged, resulting in unstable installation of the LCD screen, affecting the use of the LCD screen. Summary of the invention

[0004] The present invention aims at solving the problems in the prior art and proposes the following technical solutions:

[0005] An explosion-proof liquid crystal display screen comprises a protective block, a mounting plate is arranged on one side of the protective block, a bolt is arranged on one side of the mounting plate, a first mounting groove is opened in the middle of the mounting plate, a fixing plate is arranged inside the first mounting groove, a buffer structure is arranged on one side of the fixing plate, and a liquid crystal display screen is fixedly installed on one side thereof, an annular groove is opened outside the first mounting groove and located inside the mounting plate, a first groove is opened on one side of the protective block close to the mounting plate, the bolt is located inside the first groove, a limiting block is fixedly installed on one side of the bolt and located on the inner wall of the first groove, the limiting block is plugged into the annular groove, and fixing blocks are arranged on both sides of the mounting plate and the protective block , telescopic blocks are fixedly installed at both ends of the fixed block, a first moving block is fixedly installed on one side of the telescopic block, a compression spring is fixedly installed on one side of the first moving block and at the bottom of the telescopic block, one end of the compression spring is fixedly installed with the fixed block, sliding grooves are provided at both ends of the mounting plate and the protective block, the first moving block is slidably connected to the sliding groove, a plug rod is fixedly installed on one side of the fixed block, slots are provided on both sides of the mounting plate, the plug rod is plugged into the slot, first moving openings are provided on both sides of the inner wall of the bottom end of the first mounting groove, a moving groove is provided at the bottom of the annular groove and located inside the mounting plate, and a limiting structure is provided at the bottom of the fixed plate and located inside the moving groove.

[0006] As a preferred embodiment of the above technical solution, an installation opening is opened in the middle of the protective block, the LCD display screen is arranged corresponding to the installation opening, a second installation groove is opened outside the installation opening and located inside the protective block, a protective plate is arranged inside the second installation groove, a pull block is fixedly installed on one side of the protective plate, a second movable opening is opened on one side of the protective block, the pull block is located at the second movable opening, and it is located on one side of the fixed block, and a fixed structure is arranged inside the second installation groove.

[0007] As a preferred embodiment of the above technical solution, limiting grooves are provided on both sides of the limiting block, a movable block is arranged inside the slot, the movable block is movably connected to the inner wall of the slot, an insert block is provided on one side of the movable block, a fixed groove is provided on the side of the insert block close to the movable block, a first connecting spring is fixedly installed inside the fixed groove, one end of the first connecting spring is fixedly installed on the movable block, one side of the insert rod is fitted with the movable block, the insert block is plugged into the limiting groove, a second groove is provided on the side of the limiting block close to the movable groove, a limiting opening is provided on the side of the insert block close to the movable groove, and the limiting opening passes through the inner wall of the second groove.

[0008] As a preferred embodiment of the above technical solution, the buffer structure includes a connecting block, the top of the connecting block is fixedly installed on the fixed plate, the bottom of the connecting block is fixedly installed with a fixed spring, one end of the fixed spring is fixedly installed with the inner wall of the first installation groove, both ends of the connecting block are hinged with a rotating plate, one end of the rotating plate is hinged with a pushing block, the pushing block is movably connected to the inner wall of the first installation groove, and one end of the pushing block is fixedly installed with a round convex.

[0009] As a preferred embodiment of the above technical solution, the limiting structure includes a second moving block, a connecting rod is fixedly installed on the top of the second moving block, the connecting rod is plugged into the limiting mouth, a second connecting spring is fixedly installed on the bottom of the second moving block, one end of the second connecting spring is fixedly installed on the inner wall of the moving groove, and the second moving block is slidably connected to the inner wall of the moving groove.

[0010] As a preferred embodiment of the above technical solution, the rotating plate, the pushing block and the convex protrusion are symmetrically arranged with respect to the center of the fixed plate, the connecting rod and the second movable block are both located inside the movable groove, and they are located at the bottom of the limiting block, one end of the pushing block extends into the movable groove through the first movable opening, the side of the second movable block close to the first movable opening is an inclined surface, and the convex protrusion is located at the top of the inclined surface of the second movable block.

[0011] As a preferred embodiment of the above technical solution, the fixed structure includes a motor, a threaded rod is transmission-connected to the output end of the motor, a first connecting plate is threadedly connected to one end of the threaded rod, both sides of the first connecting plate are slidingly connected to the inner wall of the second mounting groove, first racks are fixedly installed on both sides of the first connecting plate, a gear is meshed on one side of the first rack, a rotating rod is fixedly installed in the middle of the gear, both ends of the rotating rod are rotatably connected to the inner wall of the second mounting groove, a second rack is meshed on one side of the gear, a second connecting plate is fixedly installed on one end of the second rack, and a fixing rod is fixedly installed on the side opposite to the first connecting plate and the second connecting plate.

[0012] As a preferred embodiment of the above technical solution, the motor is fixedly installed on the inner wall of the second mounting groove, one end of the threaded rod is rotatably connected to the inner wall of the second mounting groove, the fixed rod is located on the first connecting plate and the second connecting plate and is distributed in a linear array, both sides of the first rack and the second rack are slidingly connected to the inner wall of the second mounting groove, and the first rack, gear and rotating rod are symmetrically arranged with the center of the protective block.

[0013] As a preferred embodiment of the above technical solution, sliding grooves are provided on the inner walls on the upper and lower sides of the installation opening, and the upper and lower sides of the protective plate are slidably connected to the sliding grooves. Limiting grooves are provided on the upper and lower sides of the protective plate, and the number of limiting grooves is the same as that of fixing rods. The fixing rods pass through the sliding grooves and are plugged into the limiting grooves.

[0014] As a preferred embodiment of the above technical solution, the liquid crystal display screen film and other structures are made of highly anti-static materials.

[0015] The beneficial effects of the present invention are:

[0016] (1) The present invention protects the liquid crystal display screen through the protective block and the protective plate, and can also protect the bolts. The fixing block then drives the insertion rod to pass through the installation plate and the limiting block on one side of the protective block for insertion. The limiting structure and the buffer structure can fix the installation plate and limit the limiting block and the protective block at the same time, thereby improving the stability of the installation of the installation plate and the protective block, preventing the liquid crystal display screen from being hit and causing the screen to be broken, and causing the installation plate of the liquid crystal display screen to be shaken, which affects the use of the liquid crystal display screen.

[0017] (2) The present invention installs the protective plate at the installation port through a fixed structure, so that the protective plate can protect the liquid crystal display screen and reduce the damage to the liquid crystal display screen. At the same time, the protective block is easy to move and the damaged protective block can be replaced, further improving the protection of the liquid crystal display screen by the protective plate and the protective block, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0019] Figure 2 Shown is a rear structural diagram of the protection block of the embodiment;

[0020] Figure 3 Shown is a structural diagram of a mounting plate and a fixing block of an embodiment;

[0021] Figure 4 Shown is a cross-sectional view of the mounting plate and the fixing block of the embodiment;

[0022] Figure 5 The structure diagram of the limiting block, the mounting plate, the fixing plate and the buffer structure of the embodiment is shown;

[0023] Figure 6 What is shown is a structural diagram of a limiting block, a fixing block and a limiting structure of an embodiment;

[0024] Figure 7 What is shown is a structural diagram of a fixed block and a limiting block of an embodiment;

[0025] Figure 8 The embodiment shown is Figure 7 A magnified image of point A;

[0026] Fig. 9 Shown is a cross-sectional view of an embodiment of the protection block;

[0027] Fig.10 Shown is a structural diagram of a protection block of an embodiment;

[0028] Fig.11 Shown is a diagram of the internal structure of a protection block according to an embodiment.

[0029] In the figure: 1. protective block; 2. mounting plate; 3. bolt; 4. fixing plate; 5. LCD screen; 6. first groove; 7. limiting block; 8. fixing block; 9. telescopic block; 10. first moving block; 11. plug rod; 12. first moving opening; 13. limiting structure; 131. second moving block; 132. connecting rod; 133. second connecting spring; 14. mounting opening; 15. protective plate; 16. pulling block; 17. movable block; 18. plug block; 19. connecting block; 20. rotating plate; 21. pushing block; 22. convex; 23. motor; 24. threaded rod; 25. first connecting plate; 26. first rack; 27. gear; 28. second rack; 29. ​​second connecting plate; 30. fixing rod. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] The present invention provides an explosion-proof liquid crystal display screen, such as Figures 1 to 6As shown, it includes a protective block 1, a mounting plate 2 is arranged on one side of the protective block 1, a bolt 3 is arranged on one side of the mounting plate 2, a first mounting groove is opened in the middle of the mounting plate 2, a fixing plate 4 is arranged inside the first mounting groove, a buffer structure is arranged on one side of the fixing plate 4, and a liquid crystal display screen 5 is fixedly installed on one side thereof, an annular groove is opened outside the first mounting groove and located inside the mounting plate 2, a first groove 6 is opened on one side of the protective block 1 close to the mounting plate 2, the bolt 3 is located inside the first groove 6, a limiting block 7 is fixedly installed on one side of the bolt 3 and on the inner wall of the first groove 6, the limiting block 7 is plugged into the annular groove, fixing blocks 8 are arranged on both sides of the mounting plate 2 and the protective block 1, and the fixing block 8 Telescopic blocks 9 are fixedly installed at both ends, a first moving block 10 is fixedly installed on one side of the telescopic block 9, a compression spring is fixedly installed on one side of the first moving block 10 and at the bottom of the telescopic block 9, one end of the compression spring is fixedly installed on the fixed block 8, sliding grooves are provided at both ends of the mounting plate 2 and the protective block 1, the first moving block 10 is slidably connected with the sliding groove, an insertion rod 11 is fixedly installed on one side of the fixed block 8, slots are provided on both sides of the mounting plate 2, the insertion rod 11 is plugged into the slots, first moving openings 12 are provided on both sides of the inner wall of the bottom end of the first mounting groove, a moving groove is provided at the bottom of the annular groove and inside the mounting plate 2, and a limiting structure 13 is provided at the bottom of the fixed plate 4 and inside the moving groove.

[0032] The LCD screen 5 is installed on the mounting plate 2 by installing the LCD screen 5 on the fixing plate 4 inside the first mounting groove, and then the mounting plate 2 and the LCD screen 5 are installed at the position where they need to be installed by means of the bolts 3. The first moving block 10 slides inside the slide groove, so that the telescopic block 9 and the fixing block 8 can move back and forth, so that the fixing block 8 moves to the connection between the mounting plate 2 and the protective block 1, and then the fixing block 8 is pulled to both sides so that the compression spring stretches and drives the telescopic block 9 to extend, and the fixing block 8 drives the insertion rod 11 to move out of the slot, and the limiting block 7 is inserted into the annular groove. At the same time, the protective block 1 on one side of the limiting block 7 is fitted with the one side of the mounting plate 2, and the mounting plate 2 and the LCD screen are connected by the protective block 1. 5 for protection, and then loosen the fixing block 8, and the elastic action of the compression spring drives the telescopic block 9 to shrink, so that the fixing block 8 drives the insertion rod 11 to be inserted into the inside of the slot, and makes the fixing block 8 fit with the connection between the mounting plate 2 and the protective block 1 for shielding and protection. The first groove 6 is used to protect the bolt 3 to prevent the bolt 3 from being damaged and affecting the stability of the mounting plate 2. When the insertion rod 11 is inserted into the slot, the limiting block 7 and the mounting plate 2 are limited at the same time by the limiting structure 13, so as to further improve the protective effect of the protective block 1 on the LCD screen 5 on the mounting plate 2, so that the LCD screen 5 is less damaged when it is hit again, and the stability of the mounting plate 2 is improved, so that the use of the LCD screen 5 is convenient.

[0033] like Figure 2 , Fig.10As shown, a mounting opening 14 is opened in the middle of the protective block 1, and the liquid crystal display screen 5 is arranged corresponding to the mounting opening 14. A second mounting groove is opened outside the mounting opening 14 and located inside the protective block 1. A protective plate 15 is arranged inside the second mounting groove. A pull block 16 is fixedly installed on one side of the protective plate 15. A second movable opening is opened on one side of the protective block 1. The pull block 16 is located at the second movable opening and is located on one side of the fixed block 8. A fixed structure is arranged inside the second mounting groove.

[0034] The fixing structure is installed through the second mounting groove, so that the fixing structure can fix the protective plate 15 inside the mounting port 14, so that the protective plate 15 can protect the LCD screen 5 and prevent the LCD screen 5 from being damaged. When the protective block 1 and the protective plate 15 are impacted and broken, the pulling block 16 can facilitate the protective plate 15 to move along the slide groove from the second moving port to the outside of the mounting port 14, so that the protective plate 15 can be replaced, thereby improving the protection of the protective block 1 and the protective plate 15 on the LCD screen 5.

[0035] like Figures 5 to 8 As shown, limiting grooves are provided on both sides of the limiting block 7, a movable block 17 is provided inside the slot, the movable block 17 is movably connected to the inner wall of the slot, an insert block 18 is provided on one side of the movable block 17, a fixed groove is provided on the side of the insert block 18 close to the movable block 17, a first connecting spring is fixedly installed inside the fixed groove, one end of the first connecting spring is fixedly installed with the movable block 17, one side of the insert rod 11 is in contact with the movable block 17, the insert block 18 is plugged into the limiting groove, a second groove is provided on the side of the limiting block 7 close to the movable groove, a limiting opening is provided on the side of the insert block 18 close to the movable groove, and the limiting opening passes through the inner wall of the second groove.

[0036] When the insertion rod 11 is inserted into the slot, the insertion rod 11 squeezes the movable block 17 so that the first connecting spring compresses and squeezes the insertion block 18, so that the insertion block 18 is inserted into the limiting grooves on both sides of the limiting block 7, so that the insertion rod 11 and the insertion block 18 simultaneously limit the mounting plate 2 and the limiting block 7, further improving the stability of the connection between the mounting plate 2 and the protective block 1, and through the first connecting spring inside the fixed groove, when the insertion rod 11 moves to the outside of the mounting plate 2, the elastic action of the first connecting spring can push the movable block 17 to move to its original position, so that the insertion block 18 moves to the inside of the slot, so that the insertion block 18 will not block the movement of the limiting block 7, thereby facilitating the replacement of the limiting block 7 and the protective block 1, and facilitating the use of the protective block 1.

[0037] like Figures 4 to 5As shown, the buffer structure includes a connecting block 19, the top of the connecting block 19 is fixedly installed with the fixed plate 4, the bottom of the connecting block 19 is fixedly installed with a fixed spring, one end of the fixed spring is fixedly installed with the inner wall of the first mounting groove, both ends of the connecting block 19 are hinged with a rotating plate 20, one end of the rotating plate 20 is hinged with a pushing block 21, the pushing block 21 is movably connected to the inner wall of the first mounting groove, and one end of the pushing block 21 is fixedly installed with a round protrusion 22.

[0038] When the protective plate 15 on one side of the protective block 1 is hit and broken, the LCD screen 5 is vibrated to drive the fixed plate 4 to move along the inner wall of the first mounting groove, so that the connecting block 19 moves to the side away from the protective block 1, so that the fixed spring is compressed and the rotating plate 20 is deflected, so that the pushing plates move away from each other along the inner wall of the first mounting groove, so that the pushing plates drive the convex protrusions 22 to squeeze the limiting structure 13 inside the movable groove, so that the movement of the limiting structure 13 can limit the plug-in block 18 inside the buffer groove, thereby further improving the stability of the protective block 1 inside the mounting plate 2, thereby improving the stability of the connection between the protective block 1 and the mounting plate 2.

[0039] like Figures 4 to 6 As shown, the limiting structure 13 includes a second movable block 131, a connecting rod 132 is fixedly installed on the top of the second movable block 131, the connecting rod 132 is plugged into the limiting port, a second connecting spring 133 is fixedly installed on the bottom of the second movable block 131, one end of the second connecting spring 133 is fixedly installed on the inner wall of the movable groove, the second movable block 131 is slidingly connected to the inner wall of the movable groove, the rotating plate 20, the pushing block 21 and the round protrusion 22 are symmetrically arranged with the center of the fixed plate 4, the connecting rod 132 and the second movable block 131 are both located inside the movable groove, and they are located at the bottom of the limiting block 7, one end of the pushing block 21 passes through the first movable port 12 and extends to the inside of the movable groove, the second movable block 131 is close to the first movable port 12 The side is an inclined surface, and the round protrusion 22 is located at the top of the inclined surface of the second movable block 131.

[0040] The symmetrically arranged rotating plate 20, pushing block 21 and round protrusion 22 are further used to buffer the force on the LCD screen 5, thereby reducing damage to the LCD screen 5. At the same time, when the pushing plate drives the round protrusion 22 to move inside the moving groove inside the second movable opening, the pushing block 21 drives the round protrusion 22 to move along the inclined surface, so that the round protrusion 22 squeezes the second movable block 131, so that the second movable block 131 drives the connecting rod 132 to move upward, and the second connecting spring 133 is stretched, so that the connecting rod 132 is inserted into the inside of the limiting opening at the bottom of the plug block 18, and the plug block 18 is limited again, so that the plug block 18, the movable block 17 and the plug rod 11 are limited, thereby improving the stability of the fixed block 8 in protecting the connection between the mounting plate 2 and the protective block 1, thereby facilitating the improvement of the stability of the mounting plate 2 in installing the LCD screen 5.

[0041] like Figures 9 to 11As shown, the fixed structure includes a motor 23, the output end of the motor 23 is transmission-connected with a threaded rod 24, one end of the threaded rod 24 is threadedly connected with a first connecting plate 25, both sides of the first connecting plate 25 are slidingly connected with the inner wall of the second mounting groove, both sides of the first connecting plate 25 are fixedly installed with a first rack 26, one side of the first rack 26 is meshed with a gear 27, a rotating rod is fixedly installed in the middle of the gear 27, both ends of the rotating rod are rotationally connected with the inner wall of the second mounting groove, one side of the gear 27 is meshed with a second rack 28, one end of the second rack 28 is fixedly installed with a second connecting plate 29, and a fixing rod 30 is fixedly installed on the side opposite to the first connecting plate 25 and the second connecting plate 29.

[0042] When the protective plate 15 needs to be replaced, the motor 23 drives the threaded rod 24 to rotate, and the first connecting plate 25 drives the fixing rod 30 to move upward through the limiting effect of sliding between the first connecting plate 25 and the inner wall of the second mounting groove. At the same time, the first rack 26 moves upward, and the gear 27 drives the rotating rod to rotate, and the second rack 28 drives the fixing rod 30 to move downward, and the protective plate 15 is no longer limited. Then, the pull block 16 is pulled to drive the protective plate 15 to move out of the mounting opening 14 for replacement. When installation is required, the protective plate 15 is placed at the mounting opening 14, and the pull block 16 is pushed to make the protective plate 15 move out of the mounting opening 14. 5 is moved to the installation opening 14 to correspond to the liquid crystal display screen 5, and then the motor 23 is started to drive the threaded rod 24 to rotate. Through the limiting effect of the first connecting plate 25 sliding with the inner wall of the second installation groove, the first connecting plate 25 drives the fixing rod 30 to move toward the installation opening 14, and at the same time, the first rack 26 is moved downward, driving the gear 27 and the rotating rod to rotate, and the second rack 28 drives the second connecting plate 29 and the fixing rod 30 to move upward, thereby limiting the upper and lower parts of the protective plate 15 at the same time, thereby improving the stability of the protective plate 15 installed at the installation opening 14, and facilitating the protection of the liquid crystal display screen 5.

[0043] like Figures 9 to 11 As shown, the motor 23 is fixedly installed on the inner wall of the second mounting groove, one end of the threaded rod 24 is rotatably connected to the inner wall of the second mounting groove, the fixing rod 30 is located on the first connecting plate 25 and the second connecting plate 29 and is distributed in a linear array, the first rack 26 and the second rack 28 are both slidably connected to the inner wall of the second mounting groove, the first rack 26, the gear 27 and the rotating rod are symmetrically arranged with the center of the protective block 1, sliding grooves are provided on the upper and lower inner walls of the mounting opening 14, the upper and lower sides of the protective plate 15 are slidably connected to the sliding grooves, the upper and lower sides of the protective plate 15 are provided with limiting grooves, the number of the limiting grooves is the same as that of the fixing rod 30, and the fixing rod 30 passes through the sliding groove and is plugged into the limiting groove.

[0044] The motor 23 is installed through the second installation groove, and the motor 23 drives the threaded rod 24 to rotate along the inner wall of the second installation groove, thereby improving the stability of the threaded rod 24 when rotating. The sliding groove facilitates the movement of the protective plate 15 at the installation opening 14, thereby facilitating installation and replacement. By connecting multiple array-distributed fixing rods 30 with the limit grooves, the stability of the protective plate 15 during installation is improved.

[0045] like Figures 1 to 11 As shown, the film material of the liquid crystal display screen 5 and other structures are made of highly anti-static materials.

[0046] Since the film material of the liquid crystal display screen 5 and other structural materials are highly anti-static materials, the safety of the liquid crystal display screen 5 when in use is improved.

[0047] Working principle: When in use, first install the LCD screen 5 on the fixing plate 4, and then install the mounting plate 2 and the LCD screen 5 at the required installation position through the bolts 3, and insert the limiting block 7 into the inside of the annular groove so that one side of the protective block 1 fits with one side of the mounting plate 2, so that the bolt 3 is located inside the first groove 6 for protection, and then the protective block 1 is used to block and protect one side of the mounting plate 2, and the fixing block 8 is pulled to both sides so that the compression spring stretches and drives the telescopic block 9 to extend, and the fixing block 8 drives the insertion rod 11 to move out of the inside of the slot, and at the same time pushes the first moving block 10 to move along the sliding slot, so that the fixing block 8 and the telescopic block 9 move to the slot, and the limiting block 7 is inserted into the inside of the annular groove. When the fixing block 8 moves to the slot, release the fixing block 8, and the telescopic block 9 is driven to contract by the elastic action of the compression spring, so that the fixing block 8 drives the insertion rod 11 to be inserted into the inside of the slot, and the fixing block 8 and the mounting plate 2 and the protective block 1 are connected. The connection is fitted to provide shielding protection, and the insertion rod 11 is inserted into the interior of the slot to squeeze the movable block 17, so that the first connecting spring compresses and squeezes the insertion block 18, so that the insertion block 18 is inserted into the interior of the limiting grooves on both sides of the limiting block 7, so that the insertion rod 11 and the insertion block 18 simultaneously limit the mounting plate 2 and the limiting block 7, and finally, by placing the protective plate 15 at the mounting opening 14, the pulling block 16 is pushed to move the protective plate 15 along the sliding groove to the mounting opening 14 to correspond to the liquid crystal display screen 5, and then the motor 23 is started to drive the threaded rod 24 to rotate, and the first connecting plate 25 drives the fixed rod 30 to move toward the mounting opening 14 through the limiting effect of the sliding of the inner wall of the second mounting groove, and at the same time, the first rack 26 moves downward, driving the gear 27 and the rotating rod to rotate, and the second rack 28 drives the second connecting plate 29 and the fixed rod 30 to move upward, and the fixed rod 30 is plugged into the limiting groove to limit the protective plate 15.

[0048] When the protective plate 15 on one side of the protective block 1 is hit and broken, the LCD screen 5 is vibrated and drives the fixed plate 4 to move along the inner wall of the first mounting groove, so that the connecting block 19 moves to the side away from the protective block 1, so that the fixed spring is compressed and the rotating plate 20 is deflected, so that the push plates move away from each other along the inner wall of the first mounting groove, so that the push block 21 drives the round protrusion 22 to move along the inclined surface, so that the round protrusion 22 squeezes the second moving block 131, so that the second moving block 131 drives the connecting rod 132 to move upward, and the second connecting spring 133 is stretched, so that the connecting rod 132 is inserted into the inner limit opening at the bottom of the insert block 18. The plug block 18 is limited again, so that the plug block 18, the movable block 17 and the plug rod 11 are limited, and the stability of the fixed block 8 in protecting the connection between the mounting plate 2 and the protective block 1 is improved. The threaded rod 24 is then driven to rotate by the motor 23, and the first connecting plate 25 and the inner wall of the second mounting groove slide to limit the first connecting plate 25. The fixed rod 30 moves upward, and at the same time, the first rack 26 moves upward, and the gear 27 drives the rotating rod to rotate, and the second rack 28 drives the fixed rod 30 to move downward, and the protective plate 15 is no longer limited. Then the pull block 16 is pulled to drive the protective plate 15 to move out of the mounting port 14 for replacement.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them.

Claims

1. An explosion-proof liquid crystal display screen, comprising a protective block (1), characterized in that: A mounting plate (2) is provided on one side of the protective block (1), a bolt (3) is provided on one side of the mounting plate (2), a first mounting groove is provided in the middle of the mounting plate (2), a fixing plate (4) is provided inside the first mounting groove, a buffer structure is provided on one side of the fixing plate (4), and a liquid crystal display screen (5) is fixedly installed on one side thereof, an annular groove is provided outside the first mounting groove and inside the mounting plate (2), a first groove (6) is provided on one side of the protective block (1) close to the mounting plate (2), the bolt (3) is located inside the first groove (6), a limiting block (7) is fixedly installed on one side of the bolt (3) and on the inner wall of the first groove (6), the limiting block (7) is plugged into the annular groove, fixing blocks (8) are provided on both sides of the mounting plate (2) and the protective block (1), the fixing block (8) ) are fixedly mounted with telescopic blocks (9) at both ends, a first moving block (10) is fixedly mounted on one side of the telescopic block (9), a compression spring is fixedly mounted on one side of the first moving block (10) and located at the bottom of the telescopic block (9), one end of the compression spring is fixedly mounted to the fixed block (8), a sliding groove is provided at both ends of the mounting plate (2) and the protective block (1), the first moving block (10) is slidably connected to the sliding groove, an insertion rod (11) is fixedly mounted on one side of the fixed block (8), slots are provided on both sides of the mounting plate (2), the insertion rod (11) is plugged into the slot, first moving openings (12) are provided on both sides of the inner wall at the bottom end of the first mounting groove, a moving groove is provided at the bottom of the annular groove and located inside the mounting plate (2), and a limiting structure (13) is provided at the bottom of the fixed plate (4) and located inside the moving groove; A mounting opening (14) is provided in the middle of the protective block (1), the liquid crystal display screen (5) is arranged corresponding to the mounting opening (14), a second mounting groove is provided outside the mounting opening (14) and inside the protective block (1), and a protective plate (15) is arranged inside the second mounting groove; The limiting block (7) is provided with limiting grooves on both sides, a movable block (17) is provided inside the slot, the movable block (17) is movably connected to the inner wall of the slot, an insert block (18) is provided on one side of the movable block (17), a fixing groove is provided on the side of the insert block (18) close to the movable block (17), a first connecting spring is fixedly installed inside the fixing groove, one end of the first connecting spring is fixedly installed with the movable block (17), one side of the insert rod (11) is in contact with the movable block (17), the insert block (18) is plugged into the limiting groove, a second groove is provided on the side of the limiting block (7) close to the movable groove, a limiting opening is provided on the side of the insert block (18) close to the movable groove, and the limiting opening passes through the inner wall of the second groove; The protective plate (15) is provided with limiting grooves on both the upper and lower sides.

2. The explosion-proof liquid crystal display according to claim 1, characterized in that: A pull block (16) is fixedly mounted on one side of the protective plate (15); a second movable opening is opened on one side of the protective block (1); the pull block (16) is located at the second movable opening and is located on one side of the fixed block (8); and a fixed structure is arranged inside the second mounting groove.

3. The explosion-proof liquid crystal display according to claim 1, characterized in that: The buffer structure comprises a connecting block (19), the top of the connecting block (19) is fixedly mounted on the fixing plate (4), the bottom of the connecting block (19) is fixedly mounted with a fixing spring, one end of the fixing spring is fixedly mounted with the inner wall of the first mounting groove, both ends of the connecting block (19) are hingedly connected with a rotating plate (20), one end of the rotating plate (20) is hingedly connected with a pushing block (21), the pushing block (21) is movably connected with the inner wall of the first mounting groove, and one end of the pushing block (21) is fixedly mounted with a round protrusion (22).

4. The explosion-proof liquid crystal display according to claim 3, characterized in that: The limiting structure (13) comprises a second movable block (131), a connecting rod (132) being fixedly mounted on the top of the second movable block (131), the connecting rod (132) being plugged into the limiting opening, a second connecting spring (133) being fixedly mounted on the bottom of the second movable block (131), one end of the second connecting spring (133) being fixedly mounted on the inner wall of the movable groove, and the second movable block (131) being slidably connected to the inner wall of the movable groove.

5. The explosion-proof liquid crystal display according to claim 4, characterized in that: The rotating plate (20), the pushing block (21) and the circular protrusion (22) are symmetrically arranged around the center of the fixed plate (4); the connecting rod (132) and the second moving block (131) are both located inside the moving groove and are located at the bottom of the limiting block (7); one end of the pushing block (21) passes through the first moving opening (12) and extends into the moving groove; a side of the second moving block (131) close to the first moving opening (12) is an inclined surface; and the circular protrusion (22) is located at the top of the inclined surface of the second moving block (131).

6. The explosion-proof liquid crystal display according to claim 2, characterized in that: The fixed structure comprises a motor (23), an output end of the motor (23) being transmission-connected with a threaded rod (24), one end of the threaded rod (24) being threadedly connected with a first connecting plate (25), both sides of the first connecting plate (25) being slidably connected with the inner wall of the second mounting groove, both sides of the first connecting plate (25) being fixedly mounted with a first rack (26), one side of the first rack (26) being meshed with a gear (27), a rotating rod being fixedly mounted in the middle of the gear (27), both ends of the rotating rod being rotationally connected with the inner wall of the second mounting groove, one side of the gear (27) being meshed with a second rack (28), one end of the second rack (28) being fixedly mounted with a second connecting plate (29), and a fixing rod (30) being fixedly mounted on the side of the first connecting plate (25) opposite to the second connecting plate (29).

7. The explosion-proof liquid crystal display according to claim 6, characterized in that: The motor (23) is fixedly mounted on the inner wall of the second mounting groove, one end of the threaded rod (24) is rotatably connected to the inner wall of the second mounting groove, the fixed rod (30) is located on the first connecting plate (25) and the second connecting plate (29) and is distributed in a linear array, both sides of the first rack (26) and the second rack (28) are slidably connected to the inner wall of the second mounting groove, and the first rack (26), the gear (27) and the rotating rod are symmetrically arranged with respect to the center of the protective block (1).

8. The explosion-proof liquid crystal display according to claim 7, characterized in that: The upper and lower inner walls of the installation opening (14) are provided with sliding grooves, the upper and lower sides of the protection plate (15) are slidably connected to the sliding grooves, the limiting grooves are the same in number as the fixing rods (30), and the fixing rods (30) pass through the sliding grooves and are plugged into the limiting grooves.

9. The explosion-proof liquid crystal display according to any one of claims 1 to 8, characterized in that: The film material of the liquid crystal display screen (5) and other structures are made of highly anti-static material.

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