Integrated display device for engineering management

Abstract

The invention belongs to the technical field of engineering management, and particularly relates to an integrated display device for engineering management, which comprises a frame, and further comprises an unfolding device, a display device and a clearing device which are mounted on the frame. According to the integrated display device for engineering management, by arranging the display device, a hidden display screen can be conveniently pushed to move forwards, so that the display screen and the main blackboards on the two sides are located on the same horizontal line, and linkage rods on the two sides are driven to rotate oppositely or reversely through rotation of a display worm; by means of deflection of the pushing handle, a lifting rod can be pushed to ascend and descend in a display sleeve, the display screen can be conveniently pushed to move out of the frame, the display screen and the main blackboards on the two sides are located on the same horizontal line, and use is convenient; and the content of the display screen and the content of the main blackboard can be conveniently combined in engineering management teaching.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of engineering management, in particular to an integrated display device for engineering management. BACKGROUND

[0002] Engineering management is a cross discipline combining engineering technology and modern management science to efficiently plan, decide, organize, command, coordinate and control engineering activities.

[0003] In engineering management teaching, a blackboard and a display device are used, the existing teaching device is manually pushed to move the blackboard, and then the hidden display device is displayed, so that video or PPT playing can be performed, the blackboard is manually pushed, a certain force and time are required, the teaching progress is delayed, or the display device is placed in the middle of the blackboard, the area of the blackboard is reduced, other teaching modes are affected, and the display device is exposed to the outside for a long time, is disturbed by dust, and the use in the later period is affected. SUMMARY

[0004] The integrated display device for engineering management teaching in the prior art is manually pushed to move the blackboard, a certain force and time are required, the teaching progress is delayed, or the display device is placed in the middle of the blackboard, the area of the blackboard is reduced, other teaching modes are affected, and the display device is exposed to the outside for a long time, is disturbed by dust, and the use in the later period is affected, the technical problem is solved by the integrated display device for engineering management.

[0005] The integrated display device for engineering management provided by the application comprises a frame, an unfolding device, a display device and a cleaning device.

[0006] The unfolding device is located on the inner wall of the frame, the display device comprises a moving mechanism, an increasing mechanism and a driving mechanism, the moving mechanism comprises a main blackboard and a moving gear set, the main blackboard is moved left and right by rotation of the moving gear set, the increasing mechanism comprises a vice blackboard and a lifting push rod with a rack, the vice blackboard is moved forward and backward by movement of the lifting push rod, and the driving mechanism comprises a moving sleeve with a bevel gear, the moving sleeve is rotated to drive the moving gear set to rotate and the lifting push rod to move.

[0007] The display device is located on the inner wall of the frame and displays the materials for engineering management teaching, and the display device comprises a display screen and a pushing handle.

[0008] The cleaning device is located on the outer side of the frame and is used to erase chalk marks on the main blackboard and the auxiliary blackboard, and the cleaning device comprises a cleaning roller brush, and rotation of the cleaning roller brush wipes the outer surfaces of the main blackboard and the auxiliary blackboard.

[0009] Preferably, the moving mechanism further comprises a moving rack fixedly installed on the inner wall of the main blackboard, the outer surface of the main blackboard is fixedly installed with a limiting frame, the limiting frame is slidably inserted into the inner wall of the frame at both ends, the inner wall of the frame is rotatably connected to the outer surface of the moving gear set through a bearing, the gear of the moving gear set is engaged with the moving rack, and the inner wall of the frame is rotatably connected with a moving worm gear with a gear through a bearing, and the moving worm gear is engaged with the worm gear of the moving gear set.

[0010] Through the above technical scheme, the moving worm gear drives the moving gear set to rotate, the gear of the moving gear set drives the moving rack to move, and the two main blackboards on the sides are driven to move relatively or oppositely, so as to facilitate the display of the auxiliary blackboard or the display screen in the middle, and the limiting frame limits the main blackboard.

[0011] Preferably, the increasing mechanism further comprises a telescopic rod with a sliding block, one end of the telescopic rod is fixedly installed with one end of the auxiliary blackboard, and the outer surface of the frame is provided with a limiting sliding groove, and the inner wall of the limiting sliding groove is slidably inserted into the sliding block of the telescopic rod.

[0012] Through the above technical scheme, the telescopic rod facilitates the forward and backward movement of the auxiliary blackboard, the sliding block of the telescopic rod is slidably inserted into the limiting sliding groove, so as to limit and support the auxiliary blackboard.

[0013] Preferably, the sliding groove inner wall of the frame is slidably inserted into a connecting frame, the other end of the connecting frame is slidably inserted into the sliding groove inner wall of the main blackboard, the inner wall of the connecting frame is rotatably connected to a locking lead screw with a bevel gear through a bearing, both ends of the locking lead screw are threadedly connected to an insertion sleeve, the outer surfaces of the two insertion sleeves are slidably inserted into the inner wall of the connecting frame, one end of one of the insertion sleeves is slidably inserted into the inner wall of the frame, the other end of the other insertion sleeve is slidably inserted into the outer surface of the main blackboard after moving, and the outer surface of the connecting frame is rotatably connected to a locking transmission rod with a gear and a bevel gear through a bearing, and the bevel gear of the locking transmission rod is engaged with the bevel gear of the locking lead screw.

[0014] Through the above technical scheme, after the locking screw rod rotates, one plug-in sleeve can be plugged into the inner wall of the frame, and the other plug-in sleeve is separated from the plug-in of the main blackboard, so as to limit the position of the auxiliary blackboard. The movement of the main blackboard cannot drive the auxiliary blackboard to move synchronously, thereby increasing the area of the blackboard and facilitating writing. When the display screen behind the auxiliary blackboard needs to be exposed, the plug-in sleeve is plugged into the groove on the back of the main blackboard, and the other plug-in sleeve is separated from the groove of the frame. The movement of the main blackboard can drive the auxiliary blackboard to move synchronously. The rotation of the locking transmission rod drives the locking screw rod to rotate.

[0015] Preferably, the outer surface of the connecting frame is fixedly installed with a limiting sleeve, the inner wall of the limiting sleeve is slidably plugged with the outer surface of the lifting push rod, one end of the lifting push rod is fixedly installed with the back of the auxiliary blackboard, and the outer surface of the connecting frame is rotatably connected with a gear-driven pushing transmission rod through a bearing.

[0016] Through the above technical scheme, the lifting push rod is lifted in the limiting sleeve under the rotation of the pushing transmission rod, so that the auxiliary blackboard can be pushed out, so that the auxiliary blackboard can be located on the same horizontal line as the main blackboard, reducing the gap and facilitating use.

[0017] Preferably, the driving mechanism further comprises a driving motor fixedly installed on the inner wall of the frame, an electric push rod fixedly installed on the inner wall of the frame, a connecting plate fixedly installed on one end of the piston rod of the electric push rod, a gear-driven switching sleeve rotatably connected to the outer surface of the connecting plate through a bearing, and the inner wall of the switching sleeve is slidably plugged with one end of the output shaft of the driving motor. After moving, the lower end gear of the switching sleeve is engaged with the gear of the moving worm.

[0018] Through the above technical scheme, the driving motor can drive the switching sleeve to rotate, and the switching sleeve is slidably plugged with the output shaft of the driving motor, which does not affect the lifting of the switching sleeve. The driving of the moving worm is completed through the lifting of the switching sleeve.

[0019] Preferably, the outer surface of the connecting plate is rotatably connected with the outer surface of the moving sleeve through a bearing, the inner wall of the frame is rotatably connected with gear-driven driving rods through bearings, the gears of the two driving rods are respectively engaged with the gears of the locking transmission rod and the pushing transmission rod, the inner wall of the frame is rotatably connected with a connecting rod with bevel gears through a bearing, one of the driving rods is driven to rotate through a synchronous belt and a synchronous wheel, the upper end bevel gear of the moving sleeve is engaged with the bevel gear of the connecting rod, and after moving, the lower end bevel gear of the moving sleeve is engaged with the bevel gear of one of the driving rods.

[0020] Through the technical scheme, the mobile sleeve can be lifted through the lifting of the connecting plate, the driving between the pushing transmission rod and the connecting rod is switched, the two driving rods can be controlled to rotate, and the locking lead screw and the pushing transmission rod are driven.

[0021] Preferably, the display device further comprises a display motor fixedly installed on the inner wall of the frame, a display worm is rotatably connected to the inner wall of the frame through a bearing, an output shaft of the display motor drives the display worm to rotate through cooperation of a synchronous belt and a synchronous wheel, a linkage rod with a worm wheel is rotatably connected to the inner wall of the frame through a bearing seat, the worm wheel of the linkage rod is engaged with the display worm, and the two ends of the linkage rod are fixedly installed with one end of the pushing handle.

[0022] Through the technical scheme, the display worm is rotated, the linkage rods on the two sides are relatively or oppositely rotated, and the pushing handle can be deflected.

[0023] Preferably, the inner wall of the frame is fixedly installed with a display sleeve, the inner wall of the display sleeve is slidably inserted with a lifting rod with a roller, one end of the pushing handle is slidably inserted with one end of the lifting rod, and the roller of the lifting rod is slidably connected with the inner wall of one end of the pushing handle.

[0024] Through the technical scheme, the pushing handle is deflected, the lifting rod can be lifted in the display sleeve, the display screen can be conveniently moved out of the frame, and the two main blackboards are located on the same horizontal line, so that the display screen can be conveniently used.

[0025] Preferably, the cleaning device further comprises a limiting shell fixedly installed on the outer side of the frame, a moving part is fixedly installed on the inner wall of the limiting shell, a cleaning linkage is threadedly connected to the outer surface of the lead screw of the moving part, a sealing soft film is fixedly installed on the inner wall of the limiting shell, a collecting shell is fixedly installed on the outer surface of the cleaning linkage, a turnover cover is hingedly connected to the outer surface of the collecting shell through a pin shaft, one end of the turnover cover is slidably connected with the outer surface of the collecting shell, a cleaning motor is fixedly installed on the outer surface of the cleaning linkage, the two inner walls of the collecting shell are rotatably connected with the two ends of the cleaning roller brush through bearings, one end of an output shaft of the cleaning motor is fixedly installed with one end of the cleaning roller brush, and a scraping strip is fixedly installed on the inner wall of the collecting shell.

[0026] Through the technical scheme, the cleaning roller brush can clean the traces of chalk on the main blackboard or the auxiliary blackboard by lifting the cleaning linkage driven by the moving component, reducing manual cleaning of the main blackboard or the auxiliary blackboard, and the cleaning roller brush can rotate under the driving of the cleaning motor, so that the cleaning roller brush can be scraped with the scraping strip in the inclined shape, and then the wiped dust is collected in the turnover cover, and the collected dust can be removed after the turnover cover is opened.

[0027] The beneficial effects in the application are: 1. The expansion device is arranged to control the movement of the main blackboard and the auxiliary blackboard, change the writing area of the teaching blackboard, rotate the moving gear set driven by the moving worm, move the moving rack driven by the gear of the moving gear set, and move the main blackboard on both sides relative to or opposite to each other, so as to display the auxiliary blackboard or the display screen in the middle. The limiting frame limits the main blackboard, and the locking screw rod rotates to drive one of the plug-in sleeves to plug into the inner wall of the frame, and the other plug-in sleeve is separated from the main blackboard, so that the auxiliary blackboard is limited, the movement of the main blackboard cannot drive the auxiliary blackboard to move synchronously, thereby increasing the area of the blackboard for writing. When the display screen behind the auxiliary blackboard needs to be exposed, the plug-in sleeve is plugged into the recess on the back of the main blackboard, and the other plug-in sleeve is separated from the recess of the frame, so that the movement of the main blackboard can drive the auxiliary blackboard to move synchronously, thereby facilitating the use of the display screen behind. The use area of the blackboard can be quickly increased by increasing the auxiliary blackboard, and the main blackboard and the auxiliary blackboard are located on the same horizontal line, thereby facilitating use. The existing integrated display device for engineering management teaching is manually pushed, a certain force and time are required, the progress of teaching is delayed, or the display device is placed in the middle of the blackboard, which reduces the area of the blackboard itself and affects other teaching methods.

[0028] 2. The display device is arranged to facilitate the forward movement of the hidden display screen, so that the display screen is located on the same horizontal line as the main blackboards on both sides. The rotation of the display worm drives the relative or opposite rotation of the linkage rods on both sides, so that the push handle can be deflected. The deflection of the push handle can drive the lifting rod to lift in the display sleeve, facilitating the movement of the display screen out of the frame and the main blackboards on both sides on the same horizontal line, thereby facilitating use. The display screen can be automatically pushed forward, and the display screen is flush with the main blackboards on both sides, thereby facilitating the combination of the content of the display screen and the main blackboards in engineering management teaching. The existing integrated display device for engineering management teaching places the display device in the middle of the blackboard, which reduces the area of the blackboard itself and affects other teaching methods. The display device is exposed to the outside for a long time, is disturbed by dust, and affects the use in the later period.

[0029] 3、By setting the cleaning device, the main blackboard and the auxiliary blackboard can be automatically cleaned, the cleaning roller can clean the traces of chalk on the main blackboard or the auxiliary blackboard through the movement of the cleaning device, and the cleaning roller can rotate under the drive of the cleaning motor, so that the collected dust can be collected in the turnover cover after being scraped by the inclined scraping strip, and the collected dust can be easily cleaned after the turnover cover is opened. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 A schematic diagram of an integrated display device for engineering management is provided. Figure 2 A perspective view of the main blackboard structure of the integrated display device for engineering management is provided. Figure 3 A perspective view of the moving gear set structure of the integrated display device for engineering management is provided. Figure 4 A perspective view of the moving worm structure of the integrated display device for engineering management is provided. Figure 5 A perspective view of the plug-in sleeve structure of the integrated display device for engineering management is provided. Figure 6 A perspective view of the lifting push rod structure of the integrated display device for engineering management is provided. Figure 7 A perspective view of the connecting frame structure of the integrated display device for engineering management is provided. Figure 8 A perspective view of the driving rod structure of the integrated display device for engineering management is provided. Figure 9 A perspective view of the electric push rod structure of the integrated display device for engineering management is provided. Figure 10 A perspective view of the linkage rod structure of the integrated display device for engineering management is provided. Figure 11 A perspective view of the push handle structure of the integrated display device for engineering management is provided. Figure 12 A perspective view of the cleaning device of the integrated display device for engineering management is provided. Figure 13 A perspective view of the cleaning motor structure of the integrated display device for engineering management is provided.

[0031] In the diagram: 1. Frame; 2. Main blackboard; 21. Moving rack; 22. Limiting frame; 23. Moving gear set; 24. Moving worm gear; 3. Secondary blackboard; 31. Telescopic rod; 32. Limiting slide groove; 4. Connecting frame; 41. Locking screw; 42. Insertion sleeve; 43. Locking transmission rod; 5. Limiting sleeve; 51. Lifting push rod; 52. Push transmission rod; 6. Drive motor; 61. Electric push rod; 62. Connecting plate; 63. 64. Switching sleeve; 65. Moving sleeve; 66. Drive rod; 67. Connecting rod; 78. Display motor; 79. Display worm gear; 70. Linkage rod; 71. Push handle; 72. Display sleeve; 73. Lifting rod; 74. Display screen; 85. Limiting housing; 86. Moving parts; 87. Clearing frame; 88. Sealing membrane; 89. Collection housing; 80. Flip cover; 81. Clearing motor; 82. Clearing roller brush; 83. Scraper. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Reference Figures 1-13 An integrated display device for engineering management includes a frame 1, and also includes an unfolding device, a display device, and a cleaning device installed on the frame 1.

[0034] like Figures 2-9 As shown, in order to increase the chalk writing area for engineering management teaching, the unfolding device is located on the inner wall of the frame 1. The display device includes a moving mechanism, an adding mechanism, and a driving mechanism. The moving mechanism includes a main blackboard 2 and a moving gear set 23. The rotation of the moving gear set 23 drives the main blackboard 2 to move left and right. The adding mechanism includes a secondary blackboard 3 and a lifting push rod 51 with a rack. The movement of the lifting push rod 51 drives the secondary blackboard 3 to move back and forth. The driving mechanism includes a moving sleeve 64 with a bevel gear. The rotation of the moving sleeve 64 drives the moving gear set 23 to rotate and the lifting push rod 51 to move.

[0035] Specifically, in order to control the main blackboard 2 to move horizontally left and right, the moving mechanism also includes a moving rack 21, which is fixedly installed on the inner wall of the main blackboard 2. A limit frame 22 is fixedly installed on the outer surface of the main blackboard 2. The two ends of the limit frame 22 are slidably inserted into the inner wall of the frame 1. The inner wall of the frame 1 is rotatably connected to the outer surface of the moving gear set 23 through bearings. The gears of the moving gear set 23 mesh with the moving rack 21. The inner wall of the frame 1 is rotatably connected to a moving worm 24 with gears through bearings. The moving worm 24 meshes with the worm wheel of the moving gear set 23.

[0036] Specifically, in order to limit and support the auxiliary blackboard 3, the increasing mechanism further comprises a telescopic rod 31 with a sliding block, one end of the telescopic rod 31 is fixedly installed with one end of the auxiliary blackboard 3, and the outer surface of the frame 1 is provided with a limiting sliding groove 32, and the inner wall of the limiting sliding groove 32 is slidably connected with the sliding block of the telescopic rod 31.

[0037] Specifically, in order to control the auxiliary blackboard 3 to move when the main blackboard 2 moves, the sliding groove inner wall of the frame 1 slidably inserts a connecting frame 4, the other end of the connecting frame 4 slidably inserts the sliding groove inner wall of the main blackboard 2, the inner wall of the connecting frame 4 is rotatably connected with a locking lead screw 41 with a bevel gear through a bearing, both ends of the locking lead screw 41 are threadedly connected with an insertion sleeve 42, the outer surfaces of the two insertion sleeves 42 slidably insert the inner wall of the connecting frame 4, one end of one insertion sleeve 42 slidably inserts the inner wall of the frame 1, the other end of the other insertion sleeve 42 slidably inserts the outer surface of the main blackboard 2 after moving, the outer surface of the connecting frame 4 is rotatably connected with a locking transmission rod 43 with a gear and a bevel gear through a bearing, and the bevel gear of the locking transmission rod 43 is engaged with the bevel gear of the locking lead screw 41.

[0038] Specifically, in order to push the auxiliary blackboard 3 to move forward and backward, the outer surface of the connecting frame 4 is fixedly installed with a limiting sleeve 5, the inner wall of the limiting sleeve 5 slidably inserts the outer surface of the lifting push rod 51, one end of the lifting push rod 51 is fixedly installed with the back surface of the auxiliary blackboard 3, the outer surface of the connecting frame 4 is rotatably connected with a pushing transmission rod 52 with a gear through a bearing, the gear of the pushing transmission rod 52 is engaged with the rack of the lifting push rod 51, the auxiliary blackboard 3 is pushed to move forward, and can be flush with the main blackboard 2, which is convenient for writing.

[0039] Specifically, in order to drive the main blackboard 2 to move, the driving mechanism further comprises a driving motor 6, the driving motor 6 is fixedly installed on the inner wall of the frame 1, the inner wall of the frame 1 is fixedly installed with an electric push rod 61, one end of the piston rod of the electric push rod 61 is fixedly installed with a connecting plate 62, the outer surface of the connecting plate 62 is rotatably connected with a switching sleeve 63 with a gear through a bearing, the inner wall of the switching sleeve 63 slidably inserts one end of the output shaft of the driving motor 6, and the lower end gear of the switching sleeve 63 after moving is engaged with the gear of the moving worm 24.

[0040] Specifically, in order to drive the fixing between the secondary blackboard 3 and the main blackboard 2 and the front and back movement of the secondary blackboard 3, the outer surface of the connecting plate 62 is rotatably connected with the outer surface of the moving sleeve 64 through bearings, the inner wall of the frame 1 is rotatably connected with the drive rod 65 with a gear through bearings, the gears of the two drive rods 65 are respectively engaged with the gears of the locking transmission rod 43 and the gear of the pushing transmission rod 52, the inner wall of the frame 1 is rotatably connected with the connecting rod 66 with a bevel gear, one end of the connecting rod 66 drives one drive rod 65 to rotate through a synchronous belt and a synchronous wheel, the upper end bevel gear of the moving sleeve 64 is engaged with the bevel gear of the connecting rod 66, and the lower end bevel gear of the moving sleeve 64 is engaged with the bevel gear of one drive rod 65.

[0041] As shown in Figures 10-11 In order to facilitate the display of engineering management teaching video, the display device is located on the inner wall of the frame 1, and the materials of engineering management teaching are displayed, the display device comprises a display screen 76 and a pushing handle 73, and the pushing handle 73 pushes the display screen 76 to move forward and backward.

[0042] Specifically, in order to drive the pushing handle 73 to deflect, the display device further comprises a display motor 7, the display motor 7 is fixedly installed on the inner wall of the frame 1, the inner wall of the frame 1 is rotatably connected with a display worm 71 through a bearing, the output shaft of the display motor 7 drives the display worm 71 to rotate through the cooperation of a synchronous belt and a synchronous wheel, the inner wall of the frame 1 is rotatably connected with a linkage rod 72 with a worm wheel through a bearing seat, the worm wheel of the linkage rod 72 is engaged with the display worm 71, and the two ends of the linkage rod 72 are fixedly installed with one end of the pushing handle 73.

[0043] Specifically, in order to drive the display screen 76 to move forward and backward, the inner wall of the frame 1 is fixedly installed with a display sleeve 74, the inner wall of the display sleeve 74 is slidably inserted with a lifting rod 75 with a roller, one end of the pushing handle 73 is slidably inserted with one end of the lifting rod 75, and the roller of the lifting rod 75 is slidably connected with the inner wall of one end of the pushing handle 73.

[0044] As shown in Figures 12-13 In order to remove the chalk writing traces on the main blackboard 2 and the secondary blackboard 3, the cleaning device is located on the outer side of the frame 1, and the chalk traces on the main blackboard 2 and the secondary blackboard 3 are removed, the cleaning device comprises a cleaning roller brush 87, and the rotation of the cleaning roller brush 87 wipes the outer surfaces of the main blackboard 2 and the secondary blackboard 3.

[0045] Specific, in order to automatically clean action, cleaning device also includes a limiting shell 8, limiting shell 8 is fixedly installed on the outer side of the frame 1, the inner wall of limiting shell 8 is fixedly installed with moving parts 81, moving parts 81 includes a lead screw and drive motor, the outer surface of the lead screw of moving parts 81 is threadedly connected with cleaning rack 82, the inner wall of limiting shell 8 is fixedly installed with sealing soft film 83, sealing soft film 83 covers the slot of limiting shell 8, prevents dust from entering the limiting shell 8, while the sealing soft film 83 on both sides does not affect the movement of the cleaning roller brush 87, the outer surface of cleaning rack 82 is fixedly installed with collecting shell 84, the outer surface of collecting shell 84 is hingedly connected with turnover cover 85 through pin shaft, one end of turnover cover 85 is slidingly connected with the outer surface of collecting shell 84, the outer surface of cleaning rack 82 is fixedly installed with cleaning motor 86, the inner wall of collecting shell 84 is rotatably connected with the two ends of cleaning roller brush 87 through bearing respectively, one end of the output shaft of cleaning motor 86 is fixedly installed with one end of cleaning roller brush 87, the inner wall of collecting shell 84 is fixedly installed with scraping strip 88.

[0046] Working principle: when the area of writing needs to be increased in engineering management teaching, the driving motor 6 is started by control, the electric push rod 61 pushes the connecting plate 62 to move, so that the bevel gear at the lower end of the moving sleeve 64 is engaged with the bevel gear of the driving rod 65, after that, the driving motor 6 rotates to drive the slidingly inserted switching sleeve 63 to rotate, after the moving sleeve 64 is driven to rotate by the gear of the switching sleeve 63, one driving rod 65 is driven to rotate, the locking transmission rod 43 on the driving rod 65 is driven to rotate by the gear, the locking transmission rod 43 drives the locking lead screw 41 on the connecting frame 4 to rotate, the locking lead screw 41 rotates, the one end of the inserted sleeve 42 is inserted into the groove of the frame 1, the other end of the inserted sleeve 42 leaves the groove on the back of the main blackboard 2, the inserted relationship between the auxiliary blackboard 3 and the main blackboard 2 is released; The electric push rod 61 drives the connecting plate 62 to descend, the connecting plate 62 drives the switching sleeve 63 to ascend, so that the gear on the switching sleeve 63 can be engaged with the gear of the moving worm 24, the bevel gear at the lower end of the moving sleeve 64 is disengaged from the bevel gear of the driving rod 65, the driving motor 6 drives the switching sleeve 63 to rotate, drives the moving worm 24 to rotate, drives the moving gear set 23 to rotate, drives the moving rack 21 of the main blackboard 2 to move, the two sides of the main blackboard 2 move outward, the limiting frame 22 moves outward in the frame 1, moves to the set position, the electric push rod 61 drives the moving plate to ascend, so that the bevel gear at the upper end of the moving sleeve 64 can be engaged with the bevel gear of the connecting rod 66, drives the connecting rod 66 to rotate, the connecting rod 66 drives a driving rod 65 to rotate through the cooperation of the synchronous belt and the synchronous wheel, the driving rod 65 drives the push transmission rod 52 to rotate through the gear, the gear on the push transmission rod 52 drives the rack on the lifting push rod 51 to move, thereby driving the lifting push rod 51 to move outward in the limiting sleeve 5, the telescopic rod 31 is stretched, the auxiliary blackboard 3 is pushed to be flush with the main blackboard 2; When the display screen 76 behind the auxiliary blackboard 3 needs to be used, after the main blackboard 2 is reset, the moving sleeve 64 drives the driving rod 65 to rotate, the driving rod 65 drives the locking transmission rod 43 to rotate, and then drives the locking lead screw 41 to rotate, so that one of the plug-in sleeves 42 is plugged into the back recess of the main blackboard 2, and the other plug-in sleeve 42 is disengaged from the recess of the frame 1, thereby releasing the fixation between the frame 1, the movement of the main blackboard 2 can drive the auxiliary blackboard 3 to move, the telescopic rod 31 slides in the limiting sliding groove 32 through the sliding block, and one end of the connecting frame 4 slides on the inner wall of the frame 1, so that the display screen 76 behind the auxiliary blackboard 3 is exposed, the display motor 7 is started, the display motor 7 drives the display worm 71 to rotate through the cooperation of the synchronous belt and the synchronous wheel, the display worm 71 drives the two sides of the linkage rod 72 to rotate in opposite directions, so as to drive the push handle 73 to deflect, the deflection of the push handle 73 can push the upper roller of the push lifting rod 75 to move, drive the lifting rod 75 to ascend in the display sleeve 74, and facilitate the push display screen 76 to move out of the frame 1 and be located on the same horizontal line with the two sides of the main blackboard 2, thereby facilitating use; When the main blackboard 2 and the auxiliary blackboard 3 need to be cleaned of chalk marks, the moving part 81 in the limiting shell 8 is started, drives the cleaning connecting frame 82 to move downward, the cleaning connecting frame 82 moves between the two sealing soft films 83, the cleaning motor 86 drives the cleaning roller brush 87 to rotate, drives the cleaning roller brush 87 to wipe the outer surface of the main blackboard 2, the cleaning roller brush 87 rotates and scrapes the absorbed powder off through the scraping strip 88 and leaves it on the collection shell 84 and the turnover cover 85, after the turnover cover 85 is opened, the dust can be poured out.

[0047] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An integrated display device for engineering management, comprising a frame (1), characterized in that: It also includes an unfolding device, a display device, and a cleaning device installed on the frame (1); The unfolding device is located on the inner wall of the frame (1). The display device includes a moving mechanism, an adding mechanism, and a driving mechanism. The moving mechanism includes a main blackboard (2) and a moving gear set (23). The rotation of the moving gear set (23) drives the main blackboard (2) to move left and right. The adding mechanism includes a secondary blackboard (3) and a lifting push rod (51) with a rack. The movement of the lifting push rod (51) drives the secondary blackboard (3) to move back and forth. The driving mechanism includes a moving sleeve (64) with a bevel gear. The rotation of the moving sleeve (64) drives the moving gear set (23) to rotate and the lifting push rod (51) to move. The display device is located on the inner wall of the frame (1) and displays materials for teaching engineering management. The display device includes a display screen (76) and a push handle (73), which pushes the display screen (76) to move back and forth. The cleaning device is located on the outer side of the frame (1) and removes chalk marks on the main blackboard (2) and the secondary blackboard (3). The cleaning device includes a cleaning roller brush (87), and the rotation of the cleaning roller brush (87) wipes the outer surface of the main blackboard (2) and the secondary blackboard (3).

2. The integrated display device for engineering management according to claim 1, characterized in that: The moving mechanism also includes a moving rack (21), which is fixedly installed on the inner wall of the main blackboard (2). A limit frame (22) is fixedly installed on the outer surface of the main blackboard (2). The two ends of the limit frame (22) are slidably inserted into the inner wall of the frame (1). The inner wall of the frame (1) is rotatably connected to the outer surface of the moving gear set (23) through a bearing. The gear of the moving gear set (23) meshes with the moving rack (21). The inner wall of the frame (1) is rotatably connected to a moving worm (24) with a gear through a bearing. The moving worm (24) meshes with the worm wheel of the moving gear set (23).

3. The integrated display device for engineering management according to claim 1, characterized in that: The adding mechanism also includes a telescopic rod (31) with a slider. One end of the telescopic rod (31) is fixedly installed with one end of the sub-blackboard (3). A limiting groove (32) is opened on the outer surface of the frame (1). The inner wall of the limiting groove (32) is slidably inserted into the slider of the telescopic rod (31).

4. The integrated display device for engineering management according to claim 2, characterized in that: A connecting frame (4) is slidably inserted into the inner wall of the groove of the frame (1). The other end of the connecting frame (4) is slidably inserted into the inner wall of the groove of the main blackboard (2). The inner wall of the connecting frame (4) is rotatably connected to a locking screw (41) with a bevel gear through a bearing. Both ends of the locking screw (41) are threaded with plug sleeves (42). The outer surfaces of the two plug sleeves (42) are slidably inserted into the inner wall of the connecting frame (4). One end of one plug sleeve (42) is slidably inserted into the inner wall of the frame (1), and the other end of the plug sleeve (42) after it has moved is slidably inserted into the outer surface of the main blackboard (2). The outer surface of the connecting frame (4) is rotatably connected to a locking transmission rod (43) with a gear and a bevel gear through a bearing. The bevel gear of the locking transmission rod (43) meshes with the bevel gear of the locking screw (41).

5. The integrated display device for engineering management according to claim 4, characterized in that: A limiting sleeve (5) is fixedly installed on the outer surface of the connecting frame (4). The inner wall of the limiting sleeve (5) is slidably inserted into the outer surface of the lifting push rod (51). One end of the lifting push rod (51) is fixedly installed on the back of the auxiliary blackboard (3). A push transmission rod (52) with gears is rotatably connected to the outer surface of the connecting frame (4) through a bearing. The gear of the push transmission rod (52) meshes with the rack of the lifting push rod (51).

6. The integrated display device for engineering management according to claim 5, characterized in that: The driving mechanism also includes a drive motor (6), which is fixedly installed on the inner wall of the frame (1). An electric push rod (61) is fixedly installed on the inner wall of the frame (1). A connecting plate (62) is fixedly installed on one end of the piston rod of the electric push rod (61). A switching sleeve (63) with gears is rotatably connected to the outer surface of the connecting plate (62) through a bearing. The inner wall of the switching sleeve (63) is slidably inserted into one end of the output shaft of the drive motor (6). After movement, the lower gear of the switching sleeve (63) meshes with the gear of the moving worm (24).

7. The integrated display device for engineering management according to claim 6, characterized in that: The outer surface of the connecting plate (62) is connected to the outer surface of the movable sleeve (64) via a bearing. The inner wall of the frame (1) is rotatably connected to a drive rod (65) with gears via a bearing. The gears of the two drive rods (65) mesh with the gears of the locking transmission rod (43) and the gears of the pushing transmission rod (52) respectively. The inner wall of the frame (1) is rotatably connected to a connecting rod (66) with bevel gears via a bearing. One end of the connecting rod (66) drives one of the drive rods (65) to rotate via a synchronous belt and a synchronous pulley. The upper bevel gear of the movable sleeve (64) meshes with the bevel gear of the connecting rod (66). After movement, the lower bevel gear of the movable sleeve (64) meshes with the bevel gear of one of the drive rods (65).

8. The integrated display device for engineering management according to claim 1, characterized in that: The display device also includes a display motor (7), which is fixedly installed on the inner wall of the frame (1). The inner wall of the frame (1) is rotatably connected to a display worm gear (71) via a bearing. The output shaft of the display motor (7) drives the display worm gear (71) to rotate through the cooperation of a synchronous belt and a synchronous pulley. The inner wall of the frame (1) is rotatably connected to a linkage rod (72) with a worm wheel via a bearing seat. The worm wheel of the linkage rod (72) meshes with the display worm gear (71). Both ends of the linkage rod (72) are fixedly installed to one end of the push handle (73).

9. An integrated display device for engineering management according to claim 8, characterized in that: The inner wall of the frame (1) is fixedly installed with a display sleeve (74), and a lifting rod (75) with rollers is slidably inserted into the inner wall of the display sleeve (74). One end of the push handle (73) is slidably inserted into one end of the lifting rod (75), and the rollers of the lifting rod (75) are slidably connected to the inner wall of one end of the push handle (73).

10. The integrated display device for engineering management according to claim 1, characterized in that: The cleaning device also includes a limiting shell (8), which is fixedly installed on the outer side of the frame (1). A moving part (81) is fixedly installed on the inner wall of the limiting shell (8). A cleaning bracket (82) is threadedly connected to the outer surface of the lead screw of the moving part (81). A sealing soft membrane (83) is fixedly installed on the inner wall of the limiting shell (8). A collection shell (84) is fixedly installed on the outer surface of the cleaning bracket (82). A flip cover (85) is hinged to the outer surface of the collection shell (84) by a pin. One end of the flip cover (85) is slidably engaged with the outer surface of the collection shell (84). A cleaning motor (86) is fixedly installed on the outer surface of the cleaning bracket (82). The inner walls on both sides of the collection shell (84) are rotatably connected to the two ends of the cleaning roller brush (87) by bearings. One end of the output shaft of the cleaning motor (86) is fixedly installed to one end of the cleaning roller brush (87). A scraper (88) is fixedly installed on the inner wall of the collection shell (84).

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