A monitoring multi-screen display device and display system thereof

Abstract

The present invention relates to the field of television screen displays, and specifically to a monitoring multi-screen display device and a display system thereof. The multi-screen display device is composed of a single television screen display assembly, the single television screen display includes a main screen and a sub-screen, and the main screen and the sub-screen are respectively installed in a main frame and a sub-frame, and a first connecting seat and a second connecting seat are respectively provided at the edges of the main frame and the sub-frame, and an adjustment plate is slidably installed in the first connecting seat and the second connecting seat, and an axis sleeve is provided at the end of the adjustment plate; the two ends of the assembly shaft are limited by a fixed sleeve, and a sliding sleeve is slidably installed on the fixed sleeve, and the assembly shaft and the adjustment plate are limited by the limiting structure on the sliding sleeve, a folding baffle that can reflect light is hidden in the sub-frame, and a light-emitting structure with a steering light guiding function is telescopically installed in the sub-frame; the purpose of automatically adjusting the picture gap in single-screen and full-screen display modes and increasing the monitoring display effect is achieved.

Description

Technical Field

[0001] The present invention relates to the field of television screen display technology, and in particular to a monitoring multi-screen display device and a display system thereof. Background Art

[0002] Currently, monitoring systems have been widely used in various industries. General monitoring systems often use a single screen to display the monitoring image. However, when there are many monitoring points, it is often necessary to arrange multiple TV display devices in the monitoring room at the same time to meet the needs of simultaneous monitoring of the entire system.

[0003] Multi-screen surveillance typically utilizes multiple screens to create a display structure. Typically, a single screen displays the status of a single monitored area. When monitoring multiple areas, viewers can easily experience visual fatigue and overlook unexpected situations, leading to safety issues. To improve display clarity, current multi-screen TV displays utilize all screens to form a single, larger screen for magnified display of a single monitored area. Therefore, the screens are assembled together to avoid large gaps in the image when displaying a single area. Currently, there are two methods for assembling screens: seamlessly splicing the screens together or placing individual screens side by side as needed. When using spliced ​​screens, it's difficult to distinguish between the individual monitored areas in split-screen display, and the curved display effect can't be achieved based on the space in the monitoring room. When using a spliced ​​screen structure, achieving a seamless splicing effect is difficult, and large seams are likely to appear, which degrades the display quality when displaying the full screen. Summary of the Invention

[0004] The purpose of the present invention is to provide a monitoring multi-screen display device and a display system thereof, so as to automatically adjust the picture gap between single-screen and full-screen display modes and increase the monitoring display effect, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a monitoring multi-screen display device, the multi-screen display device being composed of a single television screen assembly, the single television screen including a main screen and a secondary screen, and the main screen and the secondary screen being mounted in a main frame and a secondary frame, respectively, a first connecting seat and a second connecting seat being respectively provided at the edges of the main frame and the secondary frame, and an adjustment plate being slidably mounted in each of the first connecting seat and the second connecting seat, the adjustment plates in the first connecting seat and the second connecting seat being offset and reversely arranged, and shaft sleeves being provided at the ends of the adjustment plates;

[0006] The two single TV screens are connected by inserting an assembly shaft between their shaft sleeves. Both ends of the assembly shaft are limited by fixed sleeves, and a sliding sleeve is slidably installed on the fixed sleeve. The sliding sleeve controls the height by the threaded end on the fixed sleeve, and the assembly shaft and the adjustment plate are limited by the limiting structure on the sliding sleeve. A reflective folding baffle is hidden in the sub-frame, and the back gap between the two single TV screens is shielded by the folding baffle. A light-emitting structure with a steering light-guiding function is telescopically installed in the sub-frame, and the gap is filled by emitting light between the gap of the two single TV screens. The single TV screens are assembled vertically through the assembly seat.

[0007] Preferably, the first connecting seat and the second connecting seat are respectively installed at the edge positions of the main frame and the sub-frame, and the first connecting seat and the second connecting seat are both provided with a slide groove, the adjustment plate is installed in the slide groove, and limiting holes are arranged on the adjustment plate.

[0008] Preferably, the first connecting seat and the second connecting seat are both provided with a spring rod on a side close to the adjustment plate, and a positioning piece is movably mounted on the spring rod, and the adjustment plate is fixed by connecting the positioning piece with the upper limit hole on the adjustment plate.

[0009] Preferably, the assembly shaft is arranged to pass through two adjacent sleeves, an elastic member is arranged between the sliding sleeve and the fixed sleeve, an external thread is arranged on the fixed sleeve, and the threaded end is threadedly connected to the fixed sleeve, and the sliding sleeve is pushed by the threaded end.

[0010] Preferably, a pressure plate and a suspension rod are fixedly mounted on the sliding sleeve, and a limiting ring is fixedly mounted on the suspension rod. The pressure plate is adjusted to above the positioning member by rotating the fixed sleeve on the assembly shaft, and the limiting ring can be in contact and connected with the sleeve.

[0011] Preferably, a storage groove is provided on the sub-frame, and a folding baffle is fixedly installed in the storage groove, and a fixing piece is provided at the end of the folding baffle, and the folding baffle is connected to the edge of the main frame through the fixing piece, and the folding baffle is set as a reflective surface toward the front surface of the single TV screen.

[0012] Preferably, a through slot is provided on the sub-frame, and the light-emitting structure includes a light guide box slidably installed in the through slot, and one end of the light guide box is a light-emitting seat, and the other end is a light port, and an inclined mirror is provided at the light port.

[0013] Preferably, the light emitting seat is located in the sub-frame, and a limit spring is fixedly connected to the light emitting seat to reflect light onto the folding baffle through the inclined mirror surface.

[0014] A display system for monitoring a multi-screen display device includes a main controller that inputs digital signals through an input port and outputs video signals to a television display through an output port. The main controller is provided with a conversion circuit to convert digital signals and video, a split-screen control module to distribute signals from the output port, and switches between single-screen and multi-screen displays. The main controller is provided with a behavior recognition and anomaly detection module to analyze image anomalies, a timer to analyze the time when anomalies occur, and an alarm module. The television display is composed of a main screen and a secondary screen, with the main screen provided with a conventional display module, and the secondary screen provided with a conventional display module, a light indication module, and a light gap filling module.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The television display device of the present invention is composed of a plurality of single television screens arranged and assembled horizontally and vertically, and the single television screens are divided into a main screen and a sub-screen. The main screen mainly displays the monitoring screen of a region separately. When it is displayed, the sub-screen remains in the off state, thereby forming a barrier between the two adjacent main screens, making the screen easier to distinguish and preventing visual fatigue. If an abnormality is found in the monitoring screen, the sub-screen can flash to attract the attention of the monitoring personnel and detect the abnormality in time. When it is necessary to enlarge the screen of a single region for full-screen display, all the main screens and sub-screens can be formed into an integral screen to display the monitoring screen. Both single screen and full screen have good display effects.

[0017] 2. In the present invention, a first connecting seat and a second connecting seat are respectively provided on both sides of a single TV screen. When the distance between adjacent single TV screens increases or decreases, the two shaft sleeves can be kept on the same straight line by moving the adjustment plate in the connecting seat, so that the adjacent screens can be connected by the assembly axis. Therefore, when there is a larger bevel angle between two adjacent single TV screens, the distance between the two can be increased, and vice versa, the distance between the two can be reduced, ensuring that the edges of the two single TV screens can be attached to each other during installation, effectively reducing the installation gap, and the positioning structure can simultaneously limit the assembly axis and the adjustment plate after assembly is completed, thereby increasing the stability of the device.

[0018] 3. The sub-frame of the present invention is also provided with a folding baffle, which is connected between the two screens through the folding baffle. When the two screens are tilted, the folding baffle can fill the gap on the back of the screen, and the folding baffle is used to achieve a reflective effect. The sub-frame is also provided with a light-emitting structure. The light-emitting structure is a telescopic structure. Only when the two screens are tilted can the light guide box of the light-emitting structure be extended under the action of the limit spring and be located in the gap between the two screens to emit light onto the folding baffle. The folding baffle is used to emit light toward the joint of the two single TV screens, which can produce colored light in accordance with the color changes of the screen or directly produce white light, producing light and shadow effects at the joint, visually weakening the joint and improving the aesthetics of the full-screen display.

[0019] 4. The display system of the present invention is mainly used in a television display device for multi-screen monitoring. The display system has a behavior recognition and anomaly detection module capable of deep learning. If an abnormal situation is found in the monitoring area, the display mode of the secondary screen can be changed. At the same time, it has a timer that can time the abnormality. If the time of the abnormal situation reaches the threshold, the alarm module will be activated and the display mode will be changed at the same time. The split-screen control module is used to change the signal flow direction, and all single television screens are combined into a full-screen display screen for displaying abnormal pictures, which is convenient for staff to observe, and the display system can cooperate with the device to accurately control the display of the secondary screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the front surface of the overall structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the rear surface of the overall structure of the present invention.

[0022] Figure 3 Schematic diagram of the front surface of the single TV screen display structure of the present invention.

[0023] Figure 4 Schematic diagram of the rear surface of the single TV screen display structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the single TV screen display rotation connection state of the present invention.

[0025] Figure 6 This is a schematic diagram of the disassembled state of the fixed sleeve structure of the present invention.

[0026] Figure 7 Schematic diagram of the fixing sleeve structure of the present invention.

[0027] Figure 8 Schematic diagram of the sub-frame structure of the present invention.

[0028] Figure 9Schematic diagram of the light guide box structure of the present invention.

[0029] Figure 10 Schematic diagram of the folding baffle structure of the present invention.

[0030] Figure 11 It is a system block diagram of the display system of the present invention.

[0031] Figure 12 This is a system block diagram of the television screen display of the present invention.

[0032] In the figure: 1. Single TV screen display; 101. Main screen; 102. Sub-screen; 2. Main frame; 3. Sub-frame; 4. First connecting seat; 5. Second connecting seat; 6. Adjustment plate; 7. Bushing; 8. Spring rod; 9. Positioning piece; 10. Limiting hole; 11. Fixing sleeve; 12. Elastic piece; 13. Sliding sleeve; 14. Threaded end; 15. Pressing plate; 16. Hanging rod; 17. Limiting ring; 18. Folding baffle; 19. Fixing piece; 20. Storage slot; 21. Through slot; 22. Light guide box; 23. Light-emitting seat; 24. Limiting spring; 25. Light port; 26. Inclined mirror; 27. Assembly seat. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 12 The present invention provides a technical solution: a monitoring multi-screen display device, the multi-screen display device is composed of a single TV screen 1, the single TV screen 1 includes a main screen 101 and a sub-screen 102, and the main screen 101 and the sub-screen 102 are respectively installed in a main frame 2 and a sub-frame 3, and a first connecting seat 4 and a second connecting seat 5 are respectively provided at the edges of the main frame 2 and the sub-frame 3, and an adjustment plate 6 is slidably installed in the first connecting seat 4 and the second connecting seat 5, and the adjustment plates 6 in the first connecting seat 4 and the second connecting seat 5 are staggered and reversely arranged, and a shaft sleeve 7 is provided at the end of the adjustment plate 6;

[0035] The two single TV screens 1 are connected by inserting an assembly shaft between the shaft sleeves 7. The two ends of the assembly shaft are limited by the fixed sleeves 11, and a sliding sleeve 13 is slidably installed on the fixed sleeve 11. The sliding sleeve 13 controls the height through the threaded end 14 on the fixed sleeve 11. The assembly shaft and the adjustment plate 6 are restricted by the limiting structure on the sliding sleeve 13. A reflective folding baffle 18 is hidden in the sub-frame 3. The back gap between the two single TV screens 1 is shielded by the folding baffle 18. A light-emitting structure with a steering light-guiding function is telescopically installed in the sub-frame 3. The gap between the two single TV screens 1 is filled with light, and the single TV screen 1 is assembled vertically through the assembly seat 27.

[0036] The first connecting seat 4 and the second connecting seat 5 are respectively installed at the edge positions of the main frame 2 and the sub-frame 3, and the first connecting seat 4 and the second connecting seat 5 are both provided with a slide groove, the adjustment plate 6 is installed in the slide groove, and the limiting holes 10 are arranged on the adjustment plate 6.

[0037] The multi-screen display device of the present invention is composed of multiple single television screens 1 arranged and assembled horizontally and vertically, and the single television screens 1 are divided into a main screen 101 and a sub-screen 102. The main screen 101 mainly displays a regional monitoring screen separately. When it is displayed, the sub-screen 102 remains in the off state, thereby forming a barrier between two adjacent main screens 101, making the screen easier to distinguish and preventing visual fatigue. If an abnormality is found in the monitoring screen, the sub-screen 102 can flash to attract the attention of the monitoring personnel and detect the abnormality in time. When it is necessary to enlarge the screen of a single area for full-screen display, all the main screens 101 and sub-screens 102 can be formed into an integral screen to display the monitoring screen.

[0038] A first connecting seat 4 and a second connecting seat 5 are respectively provided on both sides of the single TV screen 1, and a movable adjustment plate 6 is installed using the two connecting seats. When the distance between adjacent single TV screens 1 increases or decreases, the two shaft sleeves 7 can be kept on the same straight line by moving the adjustment plate 6 in the connecting seat, so that the adjacent screens can be connected using the assembly axis. When there is a larger bevel angle between two adjacent single TV screens 1, the distance between the two can be increased, and vice versa, the distance between the two can be reduced, thereby ensuring that the edges of the two single TV screens 1 can be close together during installation, thereby reducing the installation gap.

[0039] The first connecting seat 4 and the second connecting seat 5 are both provided with a spring rod 8 on one side close to the adjustment plate 6, and a positioning member 9 is movably installed on the spring rod 8. The adjustment plate 6 is fixed by connecting the positioning member 9 with the upper limit hole 10 on the adjustment plate 6.

[0040] After adjusting the angles of the two adjacent single TV screens 1, the connection between the positioning member 9 and the adjustment plate 6 can be used to fix the adjustment plate 6, thereby increasing the overall stability of the multi-screen display device and preventing alienation between adjacent screens.

[0041] The assembly shaft is set through two adjacent sleeves 7, and an elastic member 12 is set between the sliding sleeve 13 and the fixed sleeve 11. The fixed sleeve 11 is provided with an external thread, and the threaded end 14 is threadedly connected to the fixed sleeve 11, and the sliding sleeve 13 is pushed by the threaded end 14.

[0042] Furthermore, in order to increase the stability of the device, a positioning structure is also provided on the assembly shaft. After the assembly shaft is inserted into the shaft sleeve 7, the fixing sleeves 11 can be put on both ends of the assembly shaft to prevent the assembly shaft from falling off, and a sliding sleeve 13 is provided on the fixing sleeve 11. Under normal circumstances, under the action of the elastic member 12, the sliding sleeve 13 is maintained in a certain position. When installing the fixing sleeve 11, it is necessary to pay attention to the pressure plate 15 being located above the positioning member 9.

[0043] A pressure plate 15 and a suspension rod 16 are fixedly mounted on the sliding sleeve 13 , and a limit ring 17 is fixedly mounted on the suspension rod 16 . The pressure plate 15 is adjusted to above the positioning member 9 by rotating the fixed sleeve 11 on the assembly shaft, and the limit ring 17 can be in contact and connected with the shaft sleeve 7 .

[0044] After the position and angle of the single TV screen display 1 are determined, the threaded end 14 can be rotated to apply pressure to the sleeve 13, so that the pressure plate 15 on the sleeve 13 is pressed on the positioning member 9, so that the positioning member 9 is connected to the adjustment plate 6. At the same time, the limit ring 17 on the sleeve 13 can move toward the direction of the sleeve 7, contacting the outer wall of the sleeve 7, generating friction, and thereby preventing accidental rotation of the assembly shaft.

[0045] A storage groove 20 is provided on the sub-frame 3, and a folding baffle 18 is fixedly installed in the storage groove 20, and a fixing part 19 is provided at the end of the folding baffle 18, and the folding baffle 18 is connected to the edge of the main frame 2 through the fixing part 19, and the folding baffle 18 is set as a reflective surface toward the front surface of the single TV screen 1.

[0046] A folding baffle 18 is also provided in the sub-frame 3 of the present invention. When two adjacent single TV screens 1 are horizontally assembled, the movable end of the folding baffle 18 can be connected to the edge of the main frame 2 of the single TV screen 1 on one side through a fixing member 19, so that the folding baffle 18 is connected between the two screens. When the two screens are set at an angle, the folding baffle 18 can fill the gap on the back of the screen, and the folding baffle 18 can be used to achieve a reflective effect. The fixing member 19 can adopt a screw fixing structure or an adhesive structure.

[0047] A through slot 21 is provided on the sub-frame 3 , and the light-emitting structure includes a light guide box 22 slidably installed in the through slot 21 , and one end of the light guide box 22 is a light-emitting seat 23 , and the other end is a light port 25 , and an inclined mirror surface 26 is provided at the light port 25 .

[0048] A light-emitting structure is also provided in the sub-frame 3. In order to ensure that two adjacent single TV screens 1 can be directly fitted together for flat installation, the light-emitting structure is a telescopic structure. Only when the two screens are tilted can the light guide box 22 of the light-emitting structure be extended under the action of the limit spring 24 and be located in the gap between the two screens.

[0049] The light emitting base 23 is located in the sub-frame 3 , and a limit spring 24 is fixedly connected to the light emitting base 23 , which reflects light onto the folding baffle 18 through the inclined mirror surface 26 .

[0050] By using the light-emitting base 23 as the light source, the light can be directly projected in the light guide box 22, act on the inclined mirror surface 26 and then turn to project the light onto the folding baffle 18. The folding baffle 18 is used to project the light toward the joint of the two single TV screens 1, which can produce colored light in accordance with the color changes of the screen or directly produce white light, and produce light and shadow effects at the joints, thereby visually weakening the joints and improving the aesthetics of the full-screen display.

[0051] A display system for monitoring a multi-screen display device includes a main controller, which inputs digital signals through an input port and outputs video signals to a television screen through an output port. The main controller is provided with a conversion circuit for converting digital signals and videos, a split-screen control module for signal distribution at the output port, and switching between single-screen display and multi-screen display. The main controller is provided with a behavior recognition and anomaly detection module for analyzing image anomalies, a timer for analyzing the time when an anomaly occurs, and an alarm module.

[0052] The display system of the present invention is mainly used in the above-mentioned multi-screen display device for monitoring. Under normal circumstances, the monitoring signal of each monitoring area can be transmitted to the main controller through the input port, and the signal is processed by the conversion circuit to convert it into a video signal, which is output to the TV screen through the output port for display. The display system also includes a behavior recognition and anomaly detection module capable of deep learning. If an abnormal situation is found in the monitoring area, the display mode of the secondary screen 102 can be changed. At the same time, the timer can time the anomaly. If the time of the abnormal situation reaches the threshold, the alarm module will be activated to further remind the staff. At the same time, the display mode can be changed, and the split-screen control module can be used to change the signal flow direction, and all single TV screens 1 can be combined into a full-screen display screen to display abnormal pictures for easy observation by staff.

[0053] The television screen display is composed of a main screen 101 and a sub-screen 102, wherein the main screen 101 is provided with a conventional display module, and the sub-screen 102 is provided with a conventional display module, a light indication module and a light filling module.

[0054] The main screen 101 and the sub-screen 102 of the single TV screen display 1 have different display systems. The main screen 101 only has a conventional display module, which is mainly used for single-screen display or full-screen display of the monitoring screen, while the sub-screen 102 can use the conventional display module to cooperate with the main screen 101 to achieve the effect of full-screen display, or use the light indication module to make the sub-screen 102 flash to achieve the effect of abnormal reminder. The sub-screen 102 is also provided with a light filling module to achieve the effect of weakening the seams during full-screen display as described above.

[0055] When the multi-screen display device is in use: first, the multi-screen display device is composed of a plurality of single TV screens 1 arranged and assembled horizontally and vertically, and the single TV screen 1 is divided into a main screen 101 and a sub-screen 102. The main screen 101 mainly displays a regional monitoring screen separately. When it is displayed, the sub-screen 102 remains in the off state, thereby forming a barrier between the two adjacent main screens 101, making the screen easier to distinguish and preventing visual fatigue. If an abnormality is found in the monitoring screen, the sub-screen 102 can flash to attract the attention of the monitoring personnel and detect the abnormality in time. When it is necessary to enlarge the screen of a single area for full-screen display, all the main screens 101 and sub-screens 102 can be formed into an integral screen. To display the monitoring screen, a first connecting seat 4 and a second connecting seat 5 are respectively provided on both sides of the single TV screen 1, and a movable adjustment plate 6 is installed using the two connecting seats. When the distance between adjacent single TV screens 1 increases or decreases, the two shaft sleeves 7 can be kept on the same straight line by moving the adjustment plate 6 in the connecting seat, so that the adjacent screens are connected by the assembly axis. When there is a larger bevel between two adjacent single TV screens 1, the distance between the two can be increased, and vice versa, the distance between the two can be reduced to ensure that the edges of the two single TV screens 1 can be close together during installation, reducing the installation gap. After adjusting the angles of the two adjacent single TV screens 1, the positioning piece 9 and the adjustment plate 6 can be used. , to fix the adjustment plate 6, thereby increasing the overall stability of the multi-screen display device and preventing alienation between adjacent screen displays. Furthermore, in order to increase the stability of the device, a positioning structure is also provided on the assembly shaft. After the assembly shaft is inserted into the shaft sleeve 7, a fixing sleeve 11 can be put on both ends of the assembly shaft to prevent the assembly shaft from falling off, and a sliding sleeve 13 is provided on the fixing sleeve 11. Under normal circumstances, under the action of the elastic member 12, the sliding sleeve 13 is kept in a certain position. When installing the fixing sleeve 11, it is necessary to note that the pressure plate 15 is located above the positioning member 9. After the position and angle of the single TV screen 1 are determined, the threaded end 14 can be rotated to apply pressure to the sliding sleeve 13 so that the pressure plate 1 on the sliding sleeve 13 5 is pressed on the positioning member 9, so that the positioning member 9 is connected to the adjustment plate 6. At the same time, the limiting ring 17 on the sliding sleeve 13 can move toward the direction of the shaft sleeve 7 and contact the outer wall of the shaft sleeve 7 to generate friction, thereby preventing the assembly shaft from rotating unexpectedly. The sub-frame 3 of the present invention is also provided with a folding baffle 18. When two adjacent single TV screens 1 are assembled horizontally, the movable end of the folding baffle 18 can be connected to the edge of the main frame 2 of the single TV screen 1 on one side through the fixing member 19, so that the folding baffle 18 is connected between the two screens. When the two screens are tilted, the folding baffle 18 can fill the gap on the back of the screen and use the folding baffle 18 to achieve a reflective effect. The sub-frame 3 is also provided with a light-emitting structure.To ensure that two adjacent single-screen TVs 1 can be directly attached together for flat installation, the light-emitting structure is a telescopic structure. Only when the two screens are tilted can the light guide box 22 of the light-emitting structure be extended by the limit spring 24 and positioned in the gap between the two screens. Using the light-emitting base 23 as the light source, light can be directly emitted from the light guide box 22, act on the inclined mirror surface 26, and then be redirected to hit the folding baffle 18. The folding baffle 18 is used to emit light toward the seam between the two single-screen TVs 1. This can produce colored light to match the color changes of the screens or directly produce white light, creating a light and shadow effect at the seam, visually weakening the seam and improving the aesthetics of the full-screen display.

[0056] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above concepts without creative work fall within the scope of protection of the present invention.

Claims

1. A monitoring multi-screen display device, the multi-screen display device is composed of a single television screen (1) and is characterized by: The single television screen display (1) includes a main screen (101) and a sub-screen (102), and the main screen (101) and the sub-screen (102) are respectively installed in a main frame (2) and a sub-frame (3), and a first connecting seat (4) and a second connecting seat (5) are respectively provided at the edges of the main frame (2) and the sub-frame (3), and an adjustment plate (6) is slidably installed in the first connecting seat (4) and the second connecting seat (5), and the adjustment plates (6) in the first connecting seat (4) and the second connecting seat (5) are offset and reversely arranged, and a shaft sleeve (7) is provided at the end of the adjustment plate (6); The two single TV screens (1) are connected by inserting an assembly shaft between the shaft sleeves (7). Both ends of the assembly shaft are limited by a fixed sleeve (11), and a sliding sleeve (13) is slidably installed on the fixed sleeve (11). The sliding sleeve (13) controls the height by a threaded end (14) on the fixed sleeve (11). The assembly shaft and the adjustment plate (6) are limited by a limiting structure on the sliding sleeve (13). A folding baffle (18) capable of reflecting light is hidden in the sub-frame (3). The back gap between the two single TV screens (1) is shielded by the folding baffle (18). A light-emitting structure with a steering light-guiding function is telescopically installed in the sub-frame (3). The light-emitting structure between the gap of the two single TV screens (1) is illuminated to achieve the effect of filling the gap. The single TV screens (1) are assembled in the vertical direction by an assembly seat (27). The first connecting seat (4) and the second connecting seat (5) are respectively installed at the edge positions of the main frame (2) and the sub-frame (3), and the first connecting seat (4) and the second connecting seat (5) are both provided with a slide groove, the adjustment plate (6) is installed in the slide groove, and the adjustment plate (6) is arranged with limiting holes (10); The first connecting seat (4) and the second connecting seat (5) are both provided with a spring rod (8) on a side close to the adjustment plate (6), and a positioning member (9) is movably mounted on the spring rod (8), and the adjustment plate (6) is fixed by connecting the positioning member (9) with the upper limit hole (10) of the adjustment plate (6).

2. A monitoring multi-screen display device according to claim 1, characterized in that: The assembly shaft is arranged to pass through two adjacent shaft sleeves (7), an elastic member (12) is arranged between the sliding sleeve (13) and the fixed sleeve (11), an external thread is arranged on the fixed sleeve (11), and a threaded end (14) is threadedly connected to the fixed sleeve (11), and the sliding sleeve (13) is pushed by the threaded end (14).

3. A monitoring multi-screen display device according to claim 2, characterized in that: A pressing plate (15) and a suspension rod (16) are fixedly mounted on the sliding sleeve (13), and a limiting ring (17) is fixedly mounted on the suspension rod (16). The pressing plate (15) is adjusted to above the positioning member (9) by rotating the fixing sleeve (11) on the assembly shaft, and the limiting ring (17) can be in contact with and connected to the shaft sleeve (7).

4. The monitoring multi-screen display device according to claim 1, characterized in that: The sub-frame (3) is provided with a receiving groove (20), and a folding baffle (18) is fixedly installed in the receiving groove (20), and a fixing member (19) is provided at the end of the folding baffle (18), and the folding baffle (18) is connected to the edge of the main frame (2) through the fixing member (19), and the folding baffle (18) is set as a reflective surface in the direction of the front surface of the single television screen (1).

5. The monitoring multi-screen display device according to claim 1, characterized in that: The sub-frame (3) is provided with a through slot (21), and the light-emitting structure includes a light guide box (22) slidably installed in the through slot (21), and one end of the light guide box (22) is a light-emitting seat (23), and the other end is a light port (25), and an inclined mirror surface (26) is provided at the light port (25).

6. The monitoring multi-screen display device according to claim 5, characterized in that: The light emitting seat (23) is located in the sub-frame (3), and a limit spring (24) is fixedly connected to the light emitting seat (23), and the light is reflected onto the folding baffle (18) through the inclined mirror surface (26).

7. A display system for monitoring a multi-screen display device according to any one of claims 1 to 6, characterized in that: The display system includes a main controller, which inputs digital signals through an input port and outputs video signals to a television screen through an output port. The main controller is provided with a conversion circuit to convert digital signals and videos, a split-screen control module to distribute signals of the output port, and switches between single-screen display and multi-screen display. The main controller is provided with a behavior recognition and anomaly detection module to analyze picture anomalies, a timer to analyze the time when an anomaly occurs, and an alarm module.

8. A display system for monitoring a multi-screen display device according to claim 7, characterized in that: The television screen display is composed of a main screen (101) and a secondary screen (102), wherein the main screen (101) is provided with a conventional display module, and the secondary screen (102) is provided with a conventional display module, a light indication module and a light filling module.

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