Explosion-proof LED display screen with splicing protection structure

Abstract

The invention discloses an explosion-proof LED display screen with a splicing protection structure, and relates to the field of display screens, the explosion-proof LED display screen comprises an outer box body and an inner box body slidably connected to the inner side of the outer box body, the inner side of the outer box body is slidably connected with a locking rod, the locking rod is parallel to the inner end face of the inner box body, and the end, located on the inner side of the outer box body, of the locking rod is fixedly connected with a mounting block; two first magnets are fixedly connected to the mounting block, the magnetic poles of the outward sides of the first magnets are opposite, an adjusting rod is rotationally connected to the side wall of the outer box body, a mounting base plate is fixedly connected to the end of the adjusting rod, a first handle is fixedly connected to the outer end of the adjusting rod, and a second magnet is fixedly connected to the mounting base plate. The spliced LED display screen is placed in the inner box body, then the spliced LED display screen can be fixed through the connecting structures on the outer box body and the inner box body, the good positioning effect can be achieved, the situation that the display screen is damaged due to vibration generated in the movement process is avoided, the positioning operation of the device on the display screen is simple and easy, and the device can be repeatedly used.

Description

Technical Field

[0001] The present invention relates to the field of display screens, and particularly to an explosion-proof LED display screen with a splicing protection structure. Background Art

[0002] In the current application scenarios of LED display screens, especially when it comes to situations that require movement, transportation, or use in a vibrating environment, there are many problems in the prior art. Especially for spliced LED display screens, if no protection structure is adopted for protection, it is extremely likely to occur that the screen bursts.

[0003] On the one hand, the existing fixing and protection structures of LED display screens are often relatively complex, which not only increases the production cost, but also is cumbersome to operate during installation and disassembly, consuming a large amount of time and labor costs. This makes it necessary for users to invest more energy in the setup and maintenance of the equipment during actual use.

[0004] On the other hand, for spliced LED display screens, the existing fixing methods are difficult to achieve precise positioning. During the movement process, the display screen is extremely vulnerable to vibration. Due to the lack of effective fixing and buffering measures, the electronic components inside the display screen are prone to looseness and damage under long-term vibration, which in turn affects the normal display effect of the display screen and shortens the service life of the display screen. Moreover, most of the existing devices do not have the characteristic of being reusable. Once damaged or no longer applicable, the whole needs to be replaced, resulting in a waste of resources and an increase in costs. For this reason, those skilled in the art have proposed an explosion-proof LED display screen with a splicing protection structure to solve the problems raised in the above background. Summary of the Invention

[0005] The purpose of the present invention is to provide an explosion-proof LED display screen with a splicing protection structure to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An explosion-proof LED display screen with a splicing protection structure includes an outer box body and an inner box body slidably connected to the inner side of the outer box body. A locking rod is slidably connected to the inner side of the outer box body. The locking rod is parallel to the inner end face of the inner box body. One end of the locking rod located inside the outer box body is fixedly connected with a mounting block, and two first magnets are fixedly connected to the mounting block. The magnetic poles of the two first magnets facing outward are opposite. One end of the side wall of the outer box body is rotatably connected with an adjusting rod. The end of the adjusting rod is fixedly connected with a mounting substrate. The outer end of the adjusting rod is fixedly connected with a first handle. A second magnet is fixedly connected to the mounting substrate. The magnetic poles of the second magnet facing outward are opposite. The first magnet and the second magnet are magnetically attracted or repelled. A locking ring is fixedly connected to the middle of the locking rod, and a locking hook is fixedly connected to the middle of the inner end face of the inner box body. The locking ring and the locking hook cooperate with each other.

[0008] As a further solution of the present invention: A first spring is fixedly connected between the locking rod and the inner wall of the outer box body, and the locking rod moves towards the end close to the second magnet under the spring force of the first spring.

[0009] As a further solution of the present invention: A pressing mechanism is fixedly connected to the outer box body.

[0010] As a further solution of the present invention: The pressing mechanism includes a threaded column rotatably connected to the outer box body. A second handle is fixedly connected to the outer end of the threaded column. Two connecting displacement plates are threadedly connected to the outside of the threaded column. The connecting displacement plates are slidably connected to the locking rod. The connecting displacement plates move towards or away from each other. A first inclined rod is rotatably connected to the side of each connecting displacement plate facing the inner box body. The other end of the first inclined rod is rotatably connected to the pressing plate.

[0011] As a further solution of the present invention: Two sets of pressing mechanisms are provided. The two pressing mechanisms are driven by the same threaded column, and the pressing mechanisms cooperate with the inner end face of the inner box body.

[0012] As a further solution of the present invention: A through hole is opened on the inner end face of the inner box body. A mobile end plate is slidably connected inside the inner box body. The sliding direction of the mobile end plate is the same as the pulling direction of the inner box body. A locking sliding plate is slidably connected to the side of the mobile end plate close to the pressing mechanism. A second spring is connected between the locking sliding plate and the mobile end plate. A fastening groove is opened on the side wall of the inner box body. A fastening end block is fixedly connected to the end of the locking sliding plate. The fastening end block passes through the fastening groove and cooperates with the inner wall of the outer box body. A second inclined rod with equal length and parallel is rotatably connected to the side of the locking sliding plate close to the pressing mechanism through a torsion spring. The other ends of the second inclined rods are rotatably connected to a driving flat plate through torsion springs. The driving flat plate cooperates with the pressing mechanism.

[0013] As a further solution of the present invention: When the pressing mechanism contacts the driving flat plate, under the action of the torsion spring, the pressing mechanism first drives the locking sliding plate and the mobile end plate to be parallel as a whole. When the mobile end plate cannot move, the locking sliding plate moves towards the inner wall of the outer box body against the torsion force of the torsion spring. At this time, the fastening end block abuts against the inner wall of the outer box body.

[0014] As a further solution of the present invention: A screw sleeve is fixedly connected to the end face of the inner box body close to the outside. An inner screw rod is threadedly connected to the screw sleeve. One end of the inner screw rod located inside the inner box body is rotatably connected to an adjusting end plate.

[0015] As a further solution of the present invention: Shock-absorbing air bags are fixedly connected to both sides of the inner box body. A third handle is fixedly connected to the outer side wall of the inner box body.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is simple and convenient to use. By placing the spliced LED display screen in the inner box body, the connection structure on the outer box body and the inner box body can be used for fixation, which can achieve a good positioning effect, avoid vibration of the display screen during movement and thus prevent damage. The positioning operation of the device for the display screen is simple and easy to operate, and it can be reused, which is worthy of popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of an explosion-proof LED display screen with a splicing protection structure;

[0018] Figure 2 FIG. is a schematic overall structural diagram of the inner box body of an explosion-proof LED display screen with a splicing protection structure;

[0019] Figure 3 FIG. is a schematic structural diagram of the inner end face position of the inner box body of an explosion-proof LED display screen with a splicing protection structure;

[0020] Figure 4 FIG. is a schematic structural diagram of the inner end face position of the outer box body of an explosion-proof LED display screen with a splicing protection structure;

[0021] Figure 5 FIG. is a schematic internal structural diagram of the inner box body and the outer box body of an explosion-proof LED display screen with a splicing protection structure;

[0022] In the figure: 1. Outer box body; 2. Inner box body; 3. Locking rod; 4. Installation block; 5. First magnet; 6. Adjusting rod; 7. Installation substrate; 8. First handle; 9. Second magnet; 10. Locking ring; 11. Locking hook; 12. First spring; 13. Tightening mechanism; 14. Threaded column; 15. Second handle; 16. Connecting displacement plate; 17. First inclined rod; 18. Tightening plate; 19. Through hole; 20. Mobile end plate; 21. Locking sliding plate; 22. Second spring; 23. Fastening groove; 24. Fastening end block; 25. Second inclined rod; 26. Driving flat plate; 27. Screw sleeve; 28. Inner screw; 29. Adjusting end plate; 30. Shock-absorbing airbag; 31. Third handle. DETAILED DESCRIPTION OF THE INVENTION

[0023] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more than two.

[0025] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0026] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0027] Embodiment 1: Please refer to Figure 1 and Figure 5, An explosion-proof LED display screen with a splicing protection structure, including an outer box body 1 and an inner box body 2 slidably connected to the inside of the outer box body 1. A locking rod 3 is slidably connected to the inside of the outer box body 1. The locking rod 3 is parallel to the inner end face of the inner box body 2. One end of the locking rod 3 located inside the outer box body 1 is fixedly connected with a mounting block 4. Two first magnets 5 are fixedly connected to the mounting block 4. The magnetic poles on the outer sides of the first magnets 5 are opposite to each other. One end of the side wall of the outer box body 1 is rotatably connected with an adjusting rod 6. The end of the adjusting rod 6 is fixedly connected with a mounting substrate 7. The outer end of the adjusting rod 6 is fixedly connected with a first handle 8. A second magnet 9 is fixedly connected to the mounting substrate 7. The magnetic poles on the outer sides of the second magnets 9 are opposite to each other. The first magnets 5 and the second magnets 9 are magnetically attracted or repelled. A lock ring 10 is fixedly connected to the middle of the locking rod 3. A lock hook 11 is fixedly connected to the middle of the inner end face of the inner box body 2. The lock ring 10 and the lock hook 11 cooperate with each other. A first spring 12 is fixedly connected between the locking rod 3 and the inner wall of the outer box body 1. The locking rod 3 moves towards the end close to the second magnet 9 under the spring force of the first spring 12. In addition, the lock ring 10 can also be installed on the inner box body 2. At this time, the lock hook 11 needs to be installed on the locking rod 3 for cooperation and locking.

[0028] During use, first debug the device to see if it can be used normally. Then place the spliced LED display screen inside the inner box body 2 and fix it. Then slide the inner box body 2 into the outer box body 1. Rotate the first handle 8 so that the second magnet 9 on the mounting substrate 7 rotates. During the rotation of the second magnet 9, the two magnets will be magnetically connected to the two magnets of the first magnet 5. The locking rod 3 slides into the inner part of the outer box body 1, and at the same time drives the lock ring 10 to cooperate with the lock hook 11 to lock and fasten the inner box body 2. During transportation, the display screen can be protected from damage due to the protection of the outer box body 1. When the display screen needs to be taken out, reverse the first handle 8. When the first magnet 5 and the second magnet 9 repel each other, the locking rod 3 slides outward to unlock, and the display screen can be taken out. The first spring 12 can further enhance the locking force during locking. On the contrary, when the locking rod 3 slides outward, if the sliding is not smooth, an external force can be used to dial the locking rod 3 outward.

[0029] Please refer to Figure 4 and Figure 5, a tightening mechanism 13 is fixedly connected to the outer box body 1. The tightening mechanism 13 includes a threaded column 14 rotatably connected to the outer box body 1. A second handle 15 is fixedly connected to the outer end of the threaded column 14. Two connecting displacement plates 16 are threadedly connected to the outside of the threaded column 14. The connecting displacement plates 16 are slidably connected to the locking rod 3. The connecting displacement plates 16 move towards or away from each other. On the side of the connecting displacement plates 16 facing the inner box body 2, a first inclined rod 17 is rotatably connected. The other end of the first inclined rod 17 is rotatably connected to the tightening plate 18. Two sets of the tightening mechanism 13 are provided, and the two tightening mechanisms 13 are driven by the same threaded column 14. The tightening mechanism 13 cooperates with the inner end face of the inner box body 2.

[0030] The setting of the tightening mechanism 13 can further improve the reliability of the device fixation. Rotate the second handle 15, the second handle 15 drives the threaded column 14 to rotate, and the threaded column 14 drives the connecting displacement plates 16 to move towards each other, so that the first inclined rod 17 drives the tightening plate 18 to move towards the inner box body 2 and presses the inner box body 2 tightly, avoiding relative sliding between the inner box body 2 and the outer box body 1. In order to ensure the cooperation between the lock ring 10 and the lock hook 11, usually there is a large fitting allowance between the two, so relative sliding is likely to occur after cooperation, while relative sliding will not occur after the tightening plate 18 presses the inner box body 2 tightly.

[0031] Embodiment 2, this embodiment is improved on the basis of the previous embodiment: Please refer to Figure 2 , Figure 3 and Figure 5 , a through hole 19 is opened on the inner end face of the inner box body 2. A mobile end plate 20 is slidably connected to the inside of the inner box body 2. The sliding direction of the mobile end plate 20 is the same as the pulling direction of the inner box body 2. A locking sliding plate 21 is slidably connected to the side of the mobile end plate 20 close to the tightening mechanism 13. A second spring 22 is connected between the locking sliding plate 21 and the mobile end plate 20. A fastening groove 23 is opened on the side wall of the inner box body 2. A fastening end block 24 is fixedly connected to the end of the locking sliding plate 21. The fastening end block 24 passes through the fastening groove 23 and cooperates with the inner wall of the outer box body 1. On the side of the locking sliding plate 21 close to the tightening mechanism 13, parallel and equal-length second inclined rods 25 are rotatably connected through torsion springs. The other ends of the second inclined rods 25 are rotatably connected to a driving flat plate 26 through torsion springs. The driving flat plate 26 cooperates with the tightening mechanism 13.

[0032] When the tightening mechanism 13 contacts the driving flat plate 26, under the action of the torsion spring, the tightening mechanism 13 first drives the locking sliding plate 21 and the mobile end plate 20 to be parallel as a whole. When the mobile end plate 20 cannot move, the locking sliding plate 21 moves towards the inner wall of the outer box body 1 against the torsion force of the torsion spring. At this time, the fastening end block 24 is pressed tightly against the inner wall of the outer box body 1.

[0033] A through hole 19 is formed in the inner box body 2. The pressing plate 18 will directly enter the interior of the inner box body 2 without applying pressure to the inner box body 2 during the process. Then it abuts against the driving flat plate 26. The moving end plate 20 and the locking sliding plate 21 slide synchronously inward to tightly position the front and rear ends of the screen inside. With the further movement of the pressing plate 18, the locking sliding plate 21 slides outward and drives the fastening end block 24 to abut against the inner wall of the outer box body 1. Then the pressing plate 18 drives the inner box body 2 to move by overcoming the frictional force between the fastening end block 24 and the outer box body 1, so that the locking hook 11 and the locking ring 10 are tightly engaged.

[0034] A screw sleeve 27 is fixedly connected to the end face of the inner box body 2 near the outside. An inner screw rod 28 is threadedly connected to the screw sleeve 27. One end of the inner screw rod 28 located inside the inner box body 2 is rotatably connected to an adjusting end plate 29. Before preventing the screen, the inner screw rod 28 can be rotated according to the screen size, so that the adjusting end plate 29 slides inward, making the length of the display screen slightly less than the distance between the adjusting end plate 29 and the moving end plate 20, which is convenient for placing the screen and also convenient for later adjusting the moving end plate 20 for fixation.

[0035] Shock-absorbing air bags 30 are fixedly connected to both sides of the inner box body 2. The shock-absorbing air bags 30 can prevent the side of the display screen from being damaged. A third handle 31 is fixedly connected to the outer side wall of the inner box body 2. The third handle 31 can facilitate the extraction of the inner box body 2.

[0036] Working principle: When in use, first debug the device to see if it can be used normally. Then place the spliced LED display screen inside the inner box body 2 for fixation. Then slide the inner box body 2 into the outer box body 1. Rotate the first handle 8 so that the second magnet 9 on the mounting substrate 7 rotates. During the rotation of the second magnet 9, the two magnets will be magnetically attracted to the two magnets of the first magnet 5. The locking rod 3 slides into the outer box body 1, and at the same time drives the locking ring 10 to cooperate with the locking hook 11 to lock and fasten the inner box body 2. During transportation, the display screen can be protected from damage due to the protection of the outer box body 1. When the display screen needs to be taken out, reverse the first handle 8. When the first magnet 5 and the second magnet 9 repel each other, the locking rod 3 slides outward to unlock, and then the display screen can be taken out. The first spring 12 can further enhance the locking force when locking. On the contrary, if the sliding is not smooth when the locking rod 3 slides outward, the locking rod 3 can be externally dialed with an external force.

[0037] The setting of the fastening mechanism 13 can further improve the reliability of the device fixation. Rotate the second handle 15, and the second handle 15 drives the threaded column 14 to rotate. The threaded column 14 drives the connecting displacement plate 16 to move towards each other, so that the first inclined rod 17 drives the fastening plate 18 to move towards one side of the inner box body 2 and presses the inner box body 2 tightly, avoiding relative sliding between the inner box body 2 and the outer box body 1. In order to ensure the cooperation between the lock ring 10 and the lock hook 11, there is usually a large cooperation allowance between the two. Therefore, relative sliding is also likely to occur after cooperation. However, no relative sliding will occur after the fastening plate 18 presses the inner box body 2 tightly.

[0038] A through hole 19 is opened in the inner box body 2, and the fastening plate 18 will directly enter the inside of the inner box body 2. During the process, no pressure will be applied to the inner box body 2. Then it abuts against the driving flat plate 26, and the mobile end plate 20 and the locking sliding plate 21 slide inwards synchronously to press and position the front and rear ends of the internal screen. With the further movement of the fastening plate 18, the locking sliding plate 21 slides outwards and drives the fastening end block 24 to abut against the inner wall of the outer box body 1. Then the fastening plate 18 drives the inner box body 2 to move by overcoming the friction between the fastening end block 24 and the outer box body 1, so that the lock hook 11 and the lock ring 10 are locked and matched.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An explosion-proof LED display screen with a splicing protection structure, comprising an outer box body (1) and an inner box body (2) slidably connected to the inner side of the outer box body (1), characterized in that: A locking rod (3) is slidably connected to the inner side of the outer box body (1), the locking rod (3) is parallel to the inner end surface of the inner box body (2), one end of the locking rod (3) located on the inner side of the outer box body (1) is fixedly connected to a mounting block (4), two first magnets (5) are fixedly connected to the mounting block (4), the magnetic poles of the first magnets (5) facing outward are opposite, the side wall of the outer box body (1) is rotatably connected to an adjustment rod (6), the end of the adjustment rod (6) is fixedly connected to a mounting base plate (7), The outer end of the adjustment rod (6) is fixedly connected to a first handle (8), the mounting base plate (7) is fixedly connected to a second magnet (9), the magnetic poles of the second magnet (9) facing outward are opposite, the first magnet (5) and the second magnet (9) are magnetically matched or repelled, the middle of the locking rod (3) is fixedly connected to a locking ring (10), the middle of the inner end surface of the inner box body (2) is fixedly connected to a locking hook (11), and the locking ring (10) and the locking hook (11) are matched.

2. The explosion-proof LED display screen with a splicing protection structure according to claim 1 is characterized in that: A first spring (12) is fixedly connected between the locking rod (3) and the inner wall of the outer box body (1), and the locking rod (3) moves toward an end close to the second magnet (9) under the action of the spring force of the first spring (12).

3. The explosion-proof LED display screen with a splicing protection structure according to claim 2 is characterized in that: A tightening mechanism (13) is fixedly connected to the outer box body (1).

4. The explosion-proof LED display screen with a splicing protection structure according to claim 3 is characterized in that: The clamping mechanism (13) comprises a threaded column (14) rotatably connected to the outer box body (1), the outer end of the threaded column (14) is fixedly connected to a second handle (15), the outer side of the threaded column (14) is threadedly connected to two connecting displacement plates (16), the connecting displacement plates (16) are slidably connected to the locking rod (3), the connecting displacement plates (16) move towards each other or move away from each other, and the connecting displacement plates (16) are rotatably connected to a first tilting rod (17) on one side facing the inner box body (2), and the other end of the first tilting rod (17) is rotatably connected to the clamping plate (18).

5. The explosion-proof LED display screen with a splicing protection structure according to claim 4 is characterized in that: The tightening mechanisms (13) are provided in two groups, and the two tightening mechanisms (13) are driven by the same threaded column (14). The tightening mechanisms (13) are matched with the inner end surface of the inner box body (2).

6. The explosion-proof LED display screen with a splicing protection structure according to claim 4 is characterized in that: The inner end surface of the inner box body (2) is provided with a through hole (19), the inner side of the inner box body (2) is slidably connected with a movable end plate (20), the sliding direction of the movable end plate (20) is consistent with the pulling direction of the inner box body (2), the side of the movable end plate (20) close to the tightening mechanism (13) is slidably connected with a locking slide plate (21), a second spring (22) is connected between the locking slide plate (21) and the movable end plate (20), and the side wall of the inner box body (2) is provided with a fastening groove (2 3), a fastening end block (24) is fixedly connected to the end of the locking slide plate (21), and the fastening end block (24) passes through the fastening groove (23) and cooperates with the inner wall of the outer box body (1), and a side of the locking slide plate (21) close to the pressing mechanism (13) is rotatably connected to a second inclined rod (25) of equal length and parallel to each other through a torsion spring, and the other end of the second inclined rod (25) is rotatably connected to a driving plate (26) through a torsion spring, and the driving plate (26) cooperates with the pressing mechanism (13).

7. The explosion-proof LED display screen with a splicing protection structure according to claim 6 is characterized in that: When the pressing mechanism (13) contacts the driving plate (26), under the action of the torsion spring, the pressing mechanism (13) first drives the locking slide plate (21) and the movable end plate (20) to be parallel as a whole. When the movable end plate (20) cannot move, the locking slide plate (21) overcomes the torsion force of the torsion spring and moves toward the inner wall of the outer box body (1). At this time, the fastening end block (24) is pressed against the inner wall of the outer box body (1).

8. The explosion-proof LED display screen with a splicing protection structure according to claim 1, characterized in that: A screw sleeve (27) is fixedly connected to the end surface of the inner box body (2) close to the outer side, the screw sleeve (27) is internally threadedly connected to an internal screw rod (28), and one end of the internal screw rod (28) located inside the inner box body (2) is rotatably connected to an adjustment end plate (29).

9. The explosion-proof LED display screen with a splicing protection structure according to claim 1, characterized in that: Shock-absorbing airbags (30) are fixedly connected to both sides of the inner box body (2), and a third handle (31) is fixedly connected to the outer side wall of the inner box body (2).

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