Modular multimedia display screen structure

Abstract

The invention discloses a modular multimedia display screen structure, relates to the technical field of display screens and displays, and further comprises a mounting truss, the display comprises a display screen and a display module, and the display module is connected with the mounting truss through a butt joint assembly; the butt joint assembly comprises a first shell fixedly installed on the display module and a second shell installed on the installation truss, two scissor clamps matched with the second shell are rotationally installed on the first shell through a supporting frame, and the two scissor clamps are connected with the first shell through a sliding mechanism. The device has the advantages that when the display screen and the mounting truss are connected, clamping connection of the scissor clamps is adopted, so that mounting of the display screen is more convenient, meanwhile, the air cylinders are inflated through rotation of the scissor clamps, automatic locking is achieved, the stability is higher, and during dismounting, the display screen is repeatedly pressed for exhausting operation, so that the labor intensity of workers is reduced. And the damage probability of the display screen can be effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and particularly to a modular multimedia display screen structure. Background Art

[0002] Semiconductors are the core foundation for displays to achieve high performance, high resolution, low power consumption, and intelligent control. Modern display screens rely on semiconductor chips for control and driving. For example, display driver ICs are responsible for converting image signals into electrical signals and controlling the brightness and color of each pixel.

[0003] With the rapid development of commercial displays, stage performances, smart cities, and other fields, the demand for high-resolution, large-size, and flexible-layout display screens is increasing. Traditional display screens usually adopt an integrated design with a fixed size, which is difficult to meet the installation requirements of different scenarios, and the maintenance and upgrade costs are relatively high. Therefore, a modular display screen has emerged, which can effectively solve the defects of traditional display screens. The modular LED display screen disclosed in the publication number CN117450376A includes a mounting frame, on which a plurality of quick connection pipes are evenly distributed. A plurality of quick insertion rods are detachably connected to the plurality of quick connection pipes, and the plurality of quick insertion rods are fixedly connected to a limit frame. A display outer screen is fixedly connected to the limit frame, and a rotating rod is rotatably connected to the limit frame. A display inner screen that coincides with the display surface of the display outer screen is fixedly connected to the rotating rod.

[0004] The above modular LED display screen can display information by driving the display screen to rotate. At the same time, quick sockets, quick connection pipes, quick plugs, middle connection pipes, and quick insertion rods are used to achieve quick connection, which can effectively improve the installation efficiency of the display screen. At the same time, the rotating rod can rotate around its own axis, so that the rotation of the display inner screen can be realized, and the dynamic display of the information on the display inner screen can be realized, making it more convenient to use.

[0005] However, when the above modular LED display screen and existing modular display screens are installed, they are installed on the truss in a clamping manner. When multiple display screens are spliced together, when disassembling the display screen, tools are needed to knock the display screen off the truss, which is likely to cause damage to the display screen. Or the display screen is fixed by a magnetic attraction method, and this fixing method has poor stability and is easy to fall off.

[0006] Therefore, a new modular multimedia display screen structure can be adopted to solve the deficiencies of the existing technology. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems of difficult disassembly and poor stability in the existing technology, and to propose a modular multimedia display screen structure.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A modular multimedia display screen structure, including a display, and further including an installation truss;

[0010] The display includes a display screen and a display module, and the display module is connected to the installation truss through a docking component;

[0011] The docking component includes a first housing fixedly installed on the display module and a second housing installed on the installation truss. Two scissor cards cooperating with the second housing are rotatably installed on the first housing through a support frame. The two scissor cards are connected to the first housing through a sliding mechanism, and a reset mechanism cooperating with the two scissor cards is installed on the first housing;

[0012] A linkage mechanism is installed between the two scissor cards to make the two scissor cards move in opposite directions simultaneously, and a limiting mechanism cooperating with the second housing is installed on the first housing.

[0013] Preferably, the sliding mechanism includes a sliding column rotatably installed on the scissor card. A sliding groove cooperating with the sliding column is opened on the side wall of the first housing, and the sliding groove is arc-shaped with the rotation connection part of the scissor card and the support frame as the center of the circle.

[0014] Preferably, the reset mechanism includes two fixed baffles fixedly installed on the side wall of the first housing. A reset spring is fixedly installed on each of the two fixed baffles. One end of each reset spring away from the corresponding fixed baffle is fixedly connected to the corresponding scissor card, and the reset spring is arc-shaped.

[0015] Preferably, the linkage mechanism includes arc-shaped racks respectively fixedly installed on the corresponding scissor cards. A sleeve is fixedly installed on the side wall of the first housing. A pillar is rotatably installed in the sleeve, and a first gear meshing with both racks is fixedly installed on the pillar. A locking structure cooperating with one of the sliding columns is installed on the first housing.

[0016] Preferably, the limiting mechanism includes a plurality of elastic telescopic tubes fixedly installed outside the first housing. A push rod is fixedly installed at the telescopic end of each elastic telescopic tube. Each push rod penetrates and extends into the first housing, and a plurality of slots cooperating with the corresponding push rods are opened on the second housing.

[0017] Preferably, an elastic telescopic rod is fixedly installed on the side wall of the first housing, and the end of the elastic telescopic rod is hemispherical and abuts against one of the scissor cards.

[0018] Preferably, the locking structure includes a cylinder fixedly installed on the side wall of the first housing. A first push rod piston cooperating with one of the sliding columns is slidably installed in the cylinder. An air injection component cooperating with the cylinder is installed on the support column and the first housing. An exhaust component is installed between two of the push rods and the cylinder.

[0019] Preferably, the air injection component includes a second gear fixedly installed on the support column. A shaft rod is rotatably installed on the side wall of the first housing. A one-way bearing is fixedly installed on the shaft rod. A third gear meshing with the second gear is fixedly installed on the outer ring of the one-way bearing. A turntable is fixedly installed on the shaft rod. An air injection pipe is fixedly communicated with the cylinder. An air pumping module is installed between the turntable and the air injection pipe.

[0020] Preferably, the air pumping module includes a round rod fixedly installed on the non-axis of the turntable. A connecting rod is rotatably installed on the round rod. A hinge is rotatably installed on the connecting rod. A disc body is rotatably installed on the hinge. A rod member is fixedly installed on the disc body. A piston disc cooperating with the air injection pipe is fixedly installed on the rod member. A one-way pipe is fixedly communicated with the piston disc.

[0021] Preferably, the exhaust component includes a pressing plate fixedly installed on two of the push rods. A pushing column is fixedly installed on the pressing plate. An exhaust pipe is fixedly communicated with the cylinder. An exhaust cylinder is fixedly installed on the exhaust pipe. A blocking disc is fixedly installed on the pushing column. A first blocking ring and a second blocking ring are fixedly installed in the exhaust cylinder. The blocking disc is located between the first blocking ring and the second blocking ring. The diameter of the blocking disc is larger than the inner diameters of the first blocking ring and the second blocking ring, and the diameter of the blocking disc is smaller than the inner diameter of the exhaust cylinder.

[0022] Compared with the existing technology, the advantages of the present invention are as follows:

[0023] 1. When the modular multimedia display screen structure is connected to the truss, it uses a scissor card snap connection, which is convenient and fast to install. In cooperation with the use of the elastic telescopic tube and the push rod, it can limit the position of the first housing, keep the first housing parallel to the second housing, make the display screen vertical, avoid the display screen from tilting, and at the same time reduce the influence of the slight vibration of the truss on the display screen.

[0024] 2. When the modular multimedia display screen structure is connected to the truss, a locking structure is set to limit the scissor card to prevent the scissor card from rotating. This can effectively improve the connection stability of the scissor card. And in cooperation with the use of the air injection component, the scissor card rotation is used to generate inflation power for automatic locking, without the need for high stability and additional operations.

[0025] 3. When the modular multimedia display screen structure is connected to the truss, an exhaust component is set to discharge the gas in the cylinder, so that the first push rod piston is separated from the sliding column to achieve unlocking. The exhaust component adopts a first blocking ring, a second blocking ring and a sealing plate. Pressing the display screen for a long time cannot achieve the purpose of exhausting gas, and the display screen needs to be pressed repeatedly to achieve the purpose of unlocking. In this way, it can effectively prevent the display screen from falling off due to external personnel leaning on it, and can effectively improve the connection stability.

[0026] In summary, when the present invention connects the display screen and the installation truss, the clamping connection of the scissor card is adopted, which makes the installation of the display screen more convenient. At the same time, the rotation of the scissor card is used to inflate the cylinder to achieve automatic locking, with higher stability. When disassembling, pressing the display screen repeatedly for exhaust operation can effectively reduce the probability of damage to the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The following further details the specific embodiments of the present invention with reference to the accompanying drawings, where:

[0028] Figure 1 is a schematic structural diagram of a modular multimedia display screen structure proposed by the present invention;

[0029] Figure 2 is Figure 1 a detailed schematic structural diagram of the display screen and the display module part in

[0030] Figure 3 is Figure 1 a detailed schematic structural diagram of the truss and the first joint part in

[0031] Figure 4 is Figure 1 a detailed enlarged schematic structural diagram of the docking component in

[0032] Figure 5 is Figure 4 a detailed schematic plane structure diagram along one of the angles;

[0033] Figure 6 is Figure 5 a detailed schematic plane structure diagram along the A-A section;

[0034] Figure 7 is Figure 5 a detailed schematic three-dimensional structure diagram along the A-A section;

[0035] Figure 8 is Figure 7 a detailed schematic structure diagram after removing the second housing;

[0036] Figure 9 is Figure 8Schematic detailed drawing of the structure after removing the first housing and rotating it by a certain angle;

[0037] Figure 10 For Figure 9 Schematic detailed drawing of the structures of components such as the scissor clamp, return spring, and elastic telescopic rod;

[0038] Figure 11 For Figure 9 Schematic detailed drawing of the structures of the scissor clamp, exhaust component, linkage mechanism, and locking structure;

[0039] Figure 12 For Figure 11 Schematic detailed drawing of the structure after removing the scissor clamp and retaining one of the sliding columns;

[0040] Figure 13 For Figure 12 Schematic detailed drawing of the structure after removing the linkage mechanism;

[0041] Figure 14 For Figure 13 Enlarged schematic detailed drawing of the exhaust component;

[0042] Figure 15 For Figure 14 Schematic detailed drawing of the planar structure along one of the angles;

[0043] Figure 16 For Figure 15 Schematic three-dimensional detailed drawing of the structure along the B - B section.

[0044] In the figure: 1 display screen, 2 display module, 3 installation truss, 4 first joint, 5 docking component, 6 first housing, 7 second joint, 8 second housing, 9 elastic telescopic tube, 10 scissor clamp, 11 support frame, 12 sliding groove, 13 rack, 14 fixed baffle, 15 return spring, 16 exhaust component, 17 push rod, 18 sliding column, 19 elastic telescopic rod, 20 abutting plate, 21 locking structure, 22 first gear, 23 second gear, 24 cylinder, 25 first push rod piston, 26 third gear, 27 one-way bearing, 28 turntable, 29 injection pipe, 30 push column, 31 exhaust cylinder, 32 exhaust pipe, 33 first blocking ring, 34 sealing plate, 35 second blocking ring. Specific embodiments

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0046] Embodiment 1: Refer toFigures 1 - 4 , a modular multimedia display screen structure, including a display, and further including an installation truss 3; the modular multimedia display screen 1 is composed of a plurality of displays spliced on the installation truss 3, and each display can be disassembled independently.

[0047] The display includes a display screen 1 and a display module 2. A second connector 7 is installed on the display module 2, and a first connector 4 that cooperates with the second connector 7 is installed on the installation truss 3. The display module 2 and the installation truss 3 are connected by a docking component 5;

[0048] When installing the display, insert the second connector 7 into the first connector 4 for signal connection, and connect the docking component 5 to fix the display on the installation truss 3. The display screen 1, the display module 2, the first connector 4, and the second connector 7 are all existing technologies and will not be specifically described here.

[0049] Embodiment 2: The difference between this embodiment and the technical solution of Embodiment 1 lies in: Refer to Figures 1 - 6 , the docking component 5 includes a first housing 6 fixedly installed on the display module 2 and a second housing 8 fixedly installed on the installation truss 3. A support frame 11 is fixedly installed on the first housing 6, and two scissor cards 10 that cooperate with the second housing 8 are rotatably installed on the support frame 11. The second housing 8 is of a hollow design, and through holes are opened on the side wall. The scissor cards 10 are inserted into the inside of the second housing 8. When inserting, the two scissor cards 10 rotate around the connection part with the support frame 11 until after the scissor cards 10 are inserted into the second housing 8, the two scissor cards 10 just reset. The two scissor cards 10 are connected to the first housing 6 through a sliding mechanism;

[0050] The sliding mechanism includes a sliding column 18 rotatably installed on the scissor card 10. A sliding groove 12 that cooperates with the sliding column 18 is opened on the side wall of the first housing 6. The sliding groove 12 is in an arc shape with the rotation connection part of the scissor card 10 and the support frame 11 as the center of the circle;

[0051] During the process of inserting the scissor card 10 into the second housing 8, the two scissor cards 10 rotate. At this time, the sliding columns 18 located on one side of the two scissor cards 10 will slide in the sliding groove 12, and the two sliding columns 18 move away from each other.

[0052] A reset mechanism that cooperates with the two scissor cards 10 is installed on the first housing 6; the reset mechanism includes two fixed baffles 14 fixedly installed on the side wall of the first housing 6. A reset spring 15 is fixedly installed on each of the two fixed baffles 14. One end of the two reset springs 15 away from the corresponding fixed baffle 14 is fixedly connected to the corresponding scissor card 10. The reset spring 15 is in an arc shape;

[0053] As the scissor card 10 is inserted into the second shell 8, the reset spring 15 changes from gradual compression to gradual extension. When one side of the two scissor cards 10 are parallel, the reset spring 15 is still in a compressed state. In order to prevent the reset spring 15 from deforming or deviating, an arc-shaped telescopic rod can be provided in the middle of the reset spring 15, and the two ends of the arc-shaped telescopic rod are respectively fixedly connected to the fixed baffle 14 and the scissor card 10.

[0054] Embodiment 3: This embodiment is different from the technical solution of Embodiment 2 in that: Figures 6 - 16 , a linkage mechanism is installed between the two scissor cards 10, so that the two scissor cards 10 move in opposite directions at the same time;

[0055] If no linkage mechanism is provided, the scissor clip 10 has only one fulcrum connected to the support frame 11, which has poor stability and may tilt after long-term use, resulting in reduced fixing effects of the two clips and the display screen 1 being prone to shaking. By providing a linkage mechanism, the sliding column 18 can be limited to a certain extent, so that the two scissor clips 10 cannot rotate in the same direction at the same time, thereby improving the stability of the scissor clip 10 and effectively avoiding the probability of the scissor clip 10 being offset.

[0056] Reference Figures 6 - 9 , Figure 12 The linkage mechanism includes arc-shaped racks 13 respectively fixedly mounted on the corresponding scissor cards 10, a sleeve is fixedly mounted on the side wall of the first housing 6, a pillar is rotatably mounted in the sleeve, a first gear 22 meshing with both racks 13 is fixedly mounted on the pillar, and a locking structure 21 matched with one of the sliding pillars 18 is installed on the first housing 6;

[0057] When the scissor card 10 is inserted into the second shell 8, the scissor card 10 and the second shell 8 will abut against each other to cause the scissor card 10 to rotate. At this time, the sliding column 18 and the rack 13 on one of the scissor cards 10 will rotate around the connection position between the scissor card 10 and the support frame 11, and under the action of the first gear 22, the other rack 13 will be driven to move, thereby driving the other scissor card 10 to rotate, so as to achieve the simultaneous reverse rotation of the two scissor cards 10, which can ensure the stability of the scissor card 10 and prevent the scissor card 10 from being offset and unable to be inserted into the second shell 8.

[0058] Reference Figures 9 - 16 The locking structure 21 includes a cylinder 24 fixedly mounted on the side wall of the first housing 6, a first push rod piston 25 matching one of the sliding columns 18 is slidably mounted in the cylinder 24, and a gas injection component matching the cylinder 24 is mounted on the pillar and the first housing 6;

[0059] Gas is injected into the cylinder 24 through the gas injection component. As the gas in the cylinder 24 increases, it will push the first push rod piston 25 to move (an elastic limit buckle is arranged in the cylinder 24. When the air pressure in the cylinder 24 reaches the maximum elastic force of the elastic limit buckle, the elastic limit buckle will retract, and the first push rod piston 25 will pop out of the cylinder 24. At this time, the sliding column 18 just resets to the initial position, and the distance between the two sliding columns 18 is the smallest), so that the first push rod piston 25 abuts against one of the sliding columns 18 to lock the sliding column 18. After the sliding column 18 is locked, it means that the scissor clip 10 on the sliding column 18 is locked. If the other scissor clip 10 wants to move, it needs to drive the first gear 22 to rotate, but the first gear 22 is locked by the rack 13, so it will not rotate, and thus the other scissor clip 10 will not rotate either, realizing the locking of the scissor clip 10.

[0060] The gas injection component includes a second gear 23 fixedly installed on the support column. A shaft rod is rotatably installed on the side wall of the first housing 6. A one-way bearing 27 is fixedly installed on the shaft rod. A third gear 26 meshing with the second gear 23 is fixedly installed on the outer ring of the one-way bearing 27. A turntable 28 is fixedly installed on the shaft rod. An air injection pipe 29 is fixedly communicated with the cylinder 24. An air pumping module is installed between the turntable 28 and the air injection pipe 29.

[0061] As the scissor clip 10 rotates, it will drive the first gear 22 to rotate, thereby driving the support column to rotate. The rotation of the support column drives the second gear 23 to rotate. The rotation of the second gear 23 drives the third gear 26 meshing with it to rotate. The rotation of the third gear 26 drives the turntable 28 to rotate, and cooperates with the air pumping module to inject gas into the cylinder 24.

[0062] Since the scissor clip 10 will go through two reciprocating processes when inserted into the second housing 8, the sliding column 18 will also reciprocate. If the turntable 28 is driven to rotate at the beginning, the gas injection into the cylinder 24 will drive the first push rod piston 25 to move. After the first push rod piston 25 moves, it will block the sliding column 18, making the sliding column 18 unable to reset. Therefore, when the return spring 15 is compressed and the two sliding columns 18 move away from each other, at this time, the second gear 23 will drive the third gear 26 to rotate, but under the action of the one-way bearing 27, the third gear 26 cannot drive the shaft rod to rotate, that is, it cannot drive the turntable 28 to rotate. Only when the return spring 15 extends and the two sliding columns 18 move closer to each other, at this time, the one-way bearing 27 will drive the shaft rod to rotate, thereby driving the turntable 28 to rotate, and cooperating with the air pumping module to inject gas into the cylinder 24.

[0063] The air pumping module includes a round rod fixedly installed on the non-axis center of the turntable 28. A connecting rod is rotatably installed on the round rod. A hinge is rotatably installed on the connecting rod. A disc body is rotatably installed on the hinge. A rod member is fixedly installed on the disc body. A piston disc cooperating with the air injection pipe 29 is fixedly installed on the rod member. A one-way pipe is fixedly communicated with the piston disc.

[0064] The rotation of the turntable 28 drives the rotation of one end of the connecting rod connected to the round rod. The rotation of one end of the connecting rod away from the round rod will drive the rod to move up and down through the hinge, thereby driving the piston disk to move up and down. Through the up and down movement of the piston disk, the outside air is inhaled into the injection pipe 29 through the one-way pipe, and then injected into the cylinder 24 through the injection pipe 29 to realize the air injection operation of the cylinder 24.

[0065] An exhaust component 16 is installed between two of the push rods 17 and the cylinder 24; the exhaust component 16 includes a pressing plate 20 fixedly installed on two of the push rods 17, a pushing column 30 is fixedly installed on the pressing plate 20, an exhaust pipe 32 is fixedly communicated with the cylinder 24, an exhaust cylinder 31 is fixedly installed on the exhaust pipe 32, a blocking plate 34 is fixedly installed on the pushing column 30, a first blocking ring 33 and a second blocking ring 35 are fixedly installed in the exhaust cylinder 31, the blocking plate 34 is located between the first blocking ring 33 and the second blocking ring 35, the diameter of the blocking plate 34 is larger than the inner diameters of the first blocking ring 33 and the second blocking ring 35, and the diameter of the blocking plate 34 is smaller than the inner diameter of the exhaust cylinder 31;

[0066] When the display screen 1 needs to be disassembled, it is necessary to repeatedly press the display screen 1 at this time. When pressing the display screen 1, it will drive the first housing 6 to move, thereby driving the push rod 17 to move on the first housing 6. The movement of the push rod 17 drives the pressing plate 20 to move, thereby driving the pushing column 30 to move. The movement of the pushing column 30 will drive the blocking plate 34 to move, so that the blocking plate 34 is separated from the first blocking ring 33. At this time, the gas in the cylinder 24 will pass through the gap between the blocking plate 34 and the exhaust cylinder 31, and then be discharged through the first blocking ring 33 to realize the exhaust operation.

[0067] Since the display screen 1 is located in a public place, it is inevitable that it will be leaned on. If only the first blocking ring 33 and the blocking plate 34 are used for exhaust, as long as it is leaned on the display screen 1, the blocking plate 34 will be separated from the first blocking ring 33, which will cause the locking structure 21 to lose the locking of the sliding column 18 after leaning, resulting in the falling off of the display screen 1. To avoid this situation, a second blocking ring 35 is provided in the exhaust cylinder 31. When leaned on, the blocking plate 34 will always abut against the second blocking ring 35, and no exhaust operation will be performed in this way. The real exhaust is only by repeatedly moving the blocking plate 34 or controlling the displacement of the blocking plate 34 so that the blocking plate 34 is just separated from both the first blocking ring 33 and the second blocking ring 35.

[0068] On the side wall of the first housing 6, an elastic telescopic rod 19 is fixedly installed. The end of the elastic telescopic rod 19 is hemispherical (the function of the hemispherical shape is to make the scissors card 10 drive the elastic telescopic rod 19 to compress when rotating by abutting against the hemispherical end of the elastic telescopic rod 19). It abuts against one of the scissors cards 10. When the elastic telescopic rod 19 returns from compression, a clicking sound will be emitted. When the scissors card 10 is inserted into the second housing 8 until the scissors card 10 is engaged with the second housing 8, the elastic telescopic rod 19 will experience two resets. The first reset indicates that the scissors card 10 contacts the second housing 8, the scissors card 10 rotates, and the scissors card 10 separates from the elastic telescopic rod 19. The second reset with a clicking sound indicates that the scissors card 10 is reset. By listening to the clicking sound emitted by the elastic telescopic rod 19, the docking situation between the scissors card 10 and the second housing 8 can be judged. After the second clicking sound is emitted, the docking between the scissors card 10 and the second housing 8 is completed.

[0069] A limiting mechanism that cooperates with the second housing 8 is installed on the first housing 6;

[0070] Refer to Figures 7 - 9 , the limiting mechanism includes a plurality of elastic telescopic tubes 9 fixedly installed outside the first housing 6. A push rod 17 is fixedly installed at the telescopic end of each elastic telescopic tube 9. Each push rod 17 penetrates and extends into the first housing 6. A plurality of slots that cooperate with the corresponding push rods 17 are provided on the second housing 8;

[0071] The elastic telescopic tube 9 is used to reset the push rod 17 to achieve the purpose of repeatedly pressing the display screen 1 to reset. At the same time, this part of the design can also limit the first housing 6 to ensure that the first housing 6 and the second housing 8 are kept horizontal. In addition, it can weaken the influence of slight vibrations on the installation truss 3 on the display screen 1. Because the slight vibrations will drive the slight displacement of the push rod 17, but the sealing disc 34 will not separate from the first blocking ring 33 (the sealing disc 34 is in a convex shape, and the convex part is inserted into the first blocking ring 33. Even if slight vibrations occur, the sealing disc 34 always adheres to the first blocking ring 33 and will not exhaust air);

[0072] Adopting the snap connection of the scissors card, the installation is convenient and fast. Combined with the use of the elastic telescopic tube 9 and the push rod 17, it can limit the first housing 6, keep the first housing 6 and the second housing 8 parallel, keep the display screen 1 vertical, avoid the inclination of the display screen 1, and at the same time reduce the influence of slight vibrations on the installation truss 3 on the display screen 1. The vibrations may cause the splicing structure of the modular display screen 1 to displace, resulting in picture misalignment or poor contact. At the same time, the vibrations will also cause the signals of the driving IC or the TFT backplane to be unstable, resulting in abnormal refresh rates.

[0073] The specific operation steps of this device are as follows:

[0074] When installing the display, insert the second connector 7 into the first connector 4 for signal connection, and insert the scissor card 10 into the second housing 8;

[0075] When the scissor card 10 is inserted into the second housing 8, the scissor card 10 will rotate when it abuts against the second housing 8. At this time, the sliding column 18 and the rack 13 on one of the scissor cards 10 will rotate around the connection position of the scissor card 10 and the support frame 11. Under the action of the first gear 22, it will drive the other rack 13 to move, thereby driving the other scissor card 10 to rotate, so as to realize the simultaneous reverse rotation of the two scissor cards 10;

[0076] At the same time, the rotation of the first gear 22 will drive the column to rotate, the rotation of the column will drive the second gear 23 to rotate, the rotation of the second gear 23 will drive the third gear 26 meshing with it to rotate, and the rotation of the third gear 26 will drive the turntable 28 to rotate;

[0077] When the two sliding columns 18 move away from each other, at this time the second gear 23 will drive the third gear 26 to rotate, but under the action of the one-way bearing 27, the third gear 26 cannot drive the shaft rod to rotate, that is, it cannot drive the turntable 28 to rotate. Only when the return spring 15 stretches and the two sliding columns 18 move closer to each other, at this time the one-way bearing 27 will drive the shaft rod to rotate, thereby driving the turntable 28 to rotate;

[0078] The rotation of the turntable 28 drives the rotation of the end of the connecting rod connected to the round rod. The rotation of the end of the connecting rod away from the round rod will drive the rod to move up and down through the hinge, thereby driving the piston disk to move up and down. Through the up and down movement of the piston disk, the outside air is inhaled into the injection pipe 29 through the one-way pipe, and then injected into the cylinder 24 through the injection pipe 29 to realize the air injection operation of the cylinder 24;

[0079] As the gas in the cylinder 24 increases, it will push the first push rod piston 25 to move (an elastic limit buckle is arranged in the cylinder 24. When the air pressure in the cylinder 24 reaches the maximum elastic force of the elastic limit buckle, the elastic limit buckle will retract, and the first push rod piston 25 will pop out of the cylinder 24. At this time, the sliding column 18 just returns to the initial position, and the distance between the two sliding columns 18 is the smallest), so that the first push rod piston 25 abuts against one of the sliding columns 18 to lock the sliding column 18. After the sliding column 18 is locked, it means that the scissor card 10 on this sliding column 18 is locked. If the other scissor card 10 wants to move, it needs to drive the first gear 22 to rotate, but the first gear 22 is locked by the rack 13, so it will not rotate, and thus the other scissor card 10 will not rotate either, realizing the locking of the scissor card 10.

[0080] Unlocking: Press the display screen 1 repeatedly. When pressing the display screen 1, it will drive the first housing 6 to move, thereby driving the push rod 17 to move on the first housing 6. The movement of the push rod 17 drives the abutting plate 20 to move, thereby driving the push column 30 to move. The movement of the push column 30 drives the plugging disc 34 to move (the plugging disc 34 reciprocates between the first blocking ring 33 and the second blocking ring 35), so that the plugging disc 34 is separated from the first blocking ring 33 and the second blocking ring 35. At this time, the gas in the cylinder 24 will pass through the gap between the plugging disc 34 and the exhaust pipe 31, and then be discharged through the first blocking ring 33. At this time, the first push rod piston 25 automatically resets, and the sliding column 18 loses the restriction of the first push rod piston 25, and then the display screen 1 is pulled off from the installation truss 3.

[0081] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A modular multimedia display screen structure, including a display, characterized in that, It further includes an installation truss (3); The display includes a display screen (1) and a display module (2), and the display module (2) is connected to the installation truss (3) through a docking component (5); The docking component (5) includes a first housing (6) fixedly installed on the display module (2) and a second housing (8) installed on the installation truss (3). Two scissor clips (10) cooperating with the second housing (8) are rotatably installed on the first housing (6) through a support frame (11). The two scissor clips (10) are connected to the first housing (6) through a sliding mechanism, and a reset mechanism cooperating with the two scissor clips (10) is installed on the first housing (6); A linkage mechanism is installed between the two scissor clips (10) to make the two scissor clips (10) move in opposite directions simultaneously, and a limiting mechanism cooperating with the second housing (8) is installed on the first housing (6).

2. The modular multimedia display screen structure according to claim 1, characterized in that, The sliding mechanism includes a sliding column (18) rotatably installed on the scissor clip (10). A sliding groove (12) cooperating with the sliding column (18) is formed on the side wall of the first housing (6), and the sliding groove (12) is an arc centered on the rotating connection part of the scissor clip (10) and the support frame (11).

3. The modular multimedia display screen structure according to claim 1, characterized in that, The reset mechanism includes two fixed baffles (14) fixedly installed on the side wall of the first housing (6). A reset spring (15) is fixedly installed on each of the two fixed baffles (14). One end of each of the two reset springs (15) far from the corresponding fixed baffle (14) is fixedly connected to the corresponding scissor clip (10), and the reset spring (15) is in an arc shape.

4. The modular multimedia display screen structure according to claim 2, wherein The linkage mechanism includes arc-shaped racks (13) respectively fixedly installed on the corresponding scissor clips (10). A sleeve is fixedly installed on the side wall of the first housing (6). A support column is rotatably installed in the sleeve, and a first gear (22) meshing with both racks (13) is fixedly installed on the support column. A locking structure (21) cooperating with one of the sliding columns (18) is installed on the first housing (6).

5. The modular multimedia display screen structure according to claim 4, characterized in that, The limiting mechanism includes a plurality of elastic telescopic tubes (9) fixedly installed outside the first housing (6). A push rod (17) is fixedly installed at the telescopic end of each elastic telescopic tube (9). Each push rod (17) penetrates and extends into the first housing (6), and a plurality of slots cooperating with the corresponding push rods (17) are formed on the second housing (8).

6. The modular multimedia display screen structure according to claim 1, characterized in that, An elastic telescopic rod (19) is fixedly installed on the side wall of the first housing (6). The end of the elastic telescopic rod (19) is hemispherical and abuts against one of the scissor clips (10).

7. The modular multimedia display screen structure according to claim 5, characterized in that The locking structure (21) includes a cylinder (24) fixedly installed on the side wall of the first housing (6). A first push rod piston (25) cooperating with one of the sliding columns (18) is slidably installed in the cylinder (24). An air injection component cooperating with the cylinder (24) is installed on the support column and the first housing (6), and an exhaust component (16) is installed between two of the push rods (17) and the cylinder (24).

8. The modular multimedia display screen structure according to claim 7, characterized in that, The gas injection component includes a second gear (23) fixedly installed on the support column. A shaft rod is rotatably installed on the side wall of the first housing (6). A one-way bearing (27) is fixedly installed on the shaft rod. A third gear (26) meshing with the second gear (23) is fixedly installed on the outer ring of the one-way bearing (27). A turntable (28) is fixedly installed on the shaft rod. An injection pipe (29) is fixedly communicated with the cylinder (24). An air injection module is installed between the turntable (28) and the injection pipe (29).

9. The modular multimedia display screen structure according to claim 8, characterized in that, The air injection module includes a round rod fixedly installed on the non-axis center of the turntable (28). A connecting rod is rotatably installed on the round rod. A hinge is rotatably installed on the connecting rod. A disc body is rotatably installed on the hinge. A rod member is fixedly installed on the disc body. A piston disc cooperating with the injection pipe (29) is fixedly installed on the rod member. A one-way pipe is fixedly communicated with the piston disc.

10. The modular multimedia display screen structure according to claim 7, characterized in that, The exhaust component (16) includes a pressing plate (20) fixedly installed on two of the push rods (17). A push column (30) is fixedly installed on the pressing plate (20). An exhaust pipe (32) is fixedly communicated with the cylinder (24). An exhaust cylinder (31) is fixedly installed on the exhaust pipe (32). A blocking disc (34) is fixedly installed on the push column (30). A first blocking ring (33) and a second blocking ring (35) are fixedly installed in the exhaust cylinder (31). The blocking disc (34) is located between the first blocking ring (33) and the second blocking ring (35). The diameter of the blocking disc (34) is larger than the inner diameters of the first blocking ring (33) and the second blocking ring (35), and the diameter of the blocking disc (34) is smaller than the inner diameter of the exhaust cylinder (31).

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