Teaching image producing and broadcasting device for radio and television engineering

Abstract

The utility model discloses a teaching image producing and broadcasting device for radio and television engineering, belongs to the technical field of radio and television engineering, and aims to solve the problems that the height of the teaching image producing and broadcasting device is inconvenient to adjust, the applicability is poor, the dismounting and the mounting are complicated when the teaching image producing and broadcasting device is maintained, and the mounting and dismounting efficiency is reduced. A display screen is detachably connected to the center of the top surface of the placement plate, moving rods are fixed to the four corners of the bottom surface of the placement plate respectively, sleeve rods sleeve the peripheries of the moving rods, and side plates are fixed to the two sides of the bottom surface of each moving rod respectively; according to the display screen height adjusting device, through the arrangement of the worm gear and the worm, the rotating rods on the two sides can rotate towards the two sides respectively, meanwhile, the positions of the rotating rods are limited, through the arrangement of the driving rod and the fixed shaft, the moving rod can move upwards or downwards, and therefore the height of a display screen can be conveniently adjusted; therefore, the display screen can be suitable for people with different heights, and the applicability of the display screen is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of radio and television engineering, and in particular relates to a teaching image production and broadcasting device for radio and television engineering. Background Art

[0002] The radio and television engineering major cultivates students with a solid academic foundation and professional basic knowledge, and possesses professional knowledge and skills in digital television technology, network audio and video technology, and digital film and television production technology, as well as a certain degree of innovation and strong practical ability.

[0003] The height of existing radio and television engineering teaching image production and broadcasting devices is mostly not adjustable, and cannot be used by people of different heights. The device has poor applicability, and when the teaching image production and broadcasting device is repaired, the disassembly and installation are relatively complicated, and the teaching image production and broadcasting device cannot be installed and disassembled quickly, which reduces the installation and disassembly efficiency.

[0004] Therefore, there is a need for a teaching image production and broadcasting device for radio and television engineering to solve the problems in the prior art that the height of the teaching image production and broadcasting device is inconvenient to adjust, the applicability is poor, and the disassembly and installation of the teaching image production and broadcasting device during maintenance is complicated, thereby reducing the installation and disassembly efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a teaching image production and broadcasting device for broadcasting and television engineering to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a teaching image production and broadcasting device for broadcasting and television engineering, comprising a placement plate, a display screen is detachably connected to the center of the top surface of the placement plate, moving rods are respectively fixed at the four corners of the bottom surface of the placement plate, a sleeve rod is sleeved on the periphery of the moving rod, side panels are respectively fixed on both sides of the bottom surface of the moving rod, a fixed shaft is fixed between two of the side panels, openings are respectively opened on the opposite sides of the outer wall of the sleeve rod, a fixing frame is fixed between the bottom of one side of the four placement plates, a symmetrically distributed rotating rod is rotatably connected between the inner side walls of the fixing frame which are close to one side, driving rods are respectively fixed at both ends of the outer side wall of the rotating rod, and the driving rods are movably engaged with the fixed shaft inside.

[0007] It should be noted in the scheme that four circumferentially distributed limit grooves are provided on the top surface of the placement plate, and a movable block is movably engaged in the limit groove. A threaded rod is rotatably connected between the two side walls of the limit groove that are away from each other. The movable block is movably connected to the outer wall of the threaded rod, and one end of the threaded rod can movably pass through the inner wall of the placement plate.

[0008] It is further worth mentioning that a gear is fixed to one end of the threaded rod, an annular groove is provided at the bottom of the inner side wall of the placement plate, a toothed disk is rotatably connected in the annular groove, and the four gears are respectively meshed with the toothed disk.

[0009] It should be further explained that a fixing plate is fixed to the top surface of the movable block, and plug rods distributed up and down are fixed to the fixing plate close to the display screen. Four groups of jacks distributed in a circle and cooperating with the plug rods are provided at the bottom of the outer wall of the display screen.

[0010] As a preferred embodiment, a worm gear is fixed in the middle of the outer wall of the rotating rod, a worm is rotatably connected to the middle of the top surface of the fixed frame, the worm is meshed with the worm gears on both sides, a servo motor is fixed at the center of the bottom surface of the fixed frame, the output end of the servo motor is fixed to the bottom surface of the worm, a PLC controller is fixed to one side of the top surface of the mounting plate, and the servo motor is electrically connected to the PLC controller.

[0011] As a preferred embodiment, a rotating shaft is fixed at the center of the bottom surface of the toothed disk, and a hand wheel is fixed at the bottom of the outer side wall of the rotating shaft.

[0012] Compared with the prior art, the teaching image production and broadcasting device for radio and television engineering provided by the utility model has at least the following beneficial effects:

[0013] (1) By providing a worm wheel and a worm, the rotating rods on both sides can rotate to both sides respectively, and the positions of the rotating rods are limited at the same time. By providing a driving rod and a fixed shaft, the moving rod can move up or down, so that the height of the display screen can be easily adjusted, and thus it can be suitable for people of different heights, thereby improving the applicability of the display screen.

[0014] (2) By means of the toothed disk, gears and threaded rods, the four fixing plates can be moved inward or outward synchronously, and by means of the plug rods and plug holes, the position of the display screen can be limited or unlimited, so that the display screen can be quickly installed and removed, thereby improving the installation and removal efficiency of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the driving rod structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the placement plate of the utility model;

[0018] Figure 4 This is a schematic diagram of the rod structure of the utility model.

[0019] In the figure:

[0020] 100, placement plate; 101, sleeve rod; 102, moving rod; 103, side plate; 104, fixed axis; 105, driving rod; 106, opening;

[0021] 200, fixed frame; 201, rotating rod; 202, worm; 203, worm wheel;

[0022] 300, PLC controller; 301, servo motor;

[0023] 400, limit groove; 401, movable block; 402, threaded rod; 403, gear; 404, toothed disc; 405, annular groove;

[0024] 500, display screen; 501, fixing plate; 502, jack; 503, plug rod;

[0025] 600, rotating axis; 601, handwheel. DETAILED DESCRIPTION

[0026] See also Figure 1-4 The utility model provides a teaching image production and broadcasting device for broadcasting and television engineering, including a placement plate 100, a display screen 500 is detachably connected to the center of the top surface of the placement plate 100, moving rods 102 are respectively fixed at the four corners of the bottom surface of the placement plate 100, a sleeve rod 101 is sleeved on the periphery of the moving rod 102, side plates 103 are respectively fixed on both sides of the bottom surface of the moving rod 102, a fixed shaft 104 is fixed between two side plates 103, and openings 106 are respectively opened on the opposite sides of the outer wall of the sleeve rod 101, a fixing frame 200 is fixed between the bottoms of the four placement plates 100 close to each other on one side, and a symmetrically distributed rotating rod 201 is rotatably connected between the inner side walls of the fixing frame 200 close to each other on one side, and driving rods 105 are respectively fixed at both ends of the outer wall of the rotating rod 201, and the driving rod 105 is internally movably engaged with the fixed shaft 104.

[0027] Further as Figure 3 As shown, the top surface of the placement plate 100 is provided with four circumferentially distributed limiting grooves 400, and a movable block 401 is movably engaged in the limiting groove 400. The inner side walls of the limiting groove 400 are rotatably connected with a threaded rod 402 between the two side surfaces away from each other, and the movable block 401 is movably connected to the outer side wall of the threaded rod 402. One end of the threaded rod 402 movably passes through the inner wall of the placement plate 100.

[0028] The threaded rod 402 is provided so that the movable block 401 can move, thereby driving the fixed plate 501 to move, so that the insertion rod 503 is engaged in the insertion hole 502 .

[0029] Further as Figure 3 As shown, a gear 403 is fixed at one end of the threaded rod 402, and an annular groove 405 is provided at the bottom of the inner wall of the placement plate 100. A toothed disk 404 is rotatably connected in the annular groove 405, and the four gears 403 are respectively meshed with the toothed disk 404.

[0030] By means of the gear 403 and the toothed disk 404 , the four threaded rods 402 can move simultaneously, thereby causing the four fixing plates 501 to move synchronously, thereby limiting or canceling the position of the display screen 500 .

[0031] This solution has the following working process: when adjusting the height of the display screen 500, by operating the PLC controller 300, the PLC controller 300 controls the servo motor 301 to rotate, the rotation of the servo motor 301 drives the worm 202 to rotate, the rotation of the worm 202 drives the worm wheels 203 on both sides to rotate respectively, and then drives the rotating rods 201 on both sides to rotate respectively to both sides, the rotation of the rotating rod 201 drives the driving rod 105 to rotate respectively to both sides, through the cooperation between the driving rod 105 and the fixed shaft 104, the moving rod 102 moves, the movement of the moving rod 102 causes the display screen 500 to move, so that the height of the display screen 500 can be adjusted.

[0032] When installing the display screen 500, place the display screen 500 at the center of the top surface of the mounting plate 100, and manually rotate the handwheel 601. The rotation of the handwheel 601 drives the toothed disk 404 to rotate, and the rotation of the toothed disk 404 drives the four gears 403 to rotate at the same time. The rotation of the gear 403 drives the threaded rod 402 to rotate, and the rotation of the threaded rod 402 drives the movable block 401 to move inward, thereby causing the insertion rod 503 to move inward until the insertion rod 503 is correspondingly engaged in the socket 502, so that the position of the display screen 500 is fixed.

[0033] When disassembling the display screen 500, the hand wheel 601 is manually rotated in the opposite direction to make the four fixing plates 501 move outward synchronously, so that the insertion rod 503 is separated from the insertion hole 502, and then the display screen 500 can be removed.

[0034] According to the above working process, it can be known that: by setting the worm wheel 203 and the worm 202, the rotating rods 201 on both sides can be rotated to both sides respectively, and the position of the rotating rods 201 is limited at the same time. By setting the driving rod 105 and the fixed shaft 104, the moving rod 102 can be moved up or down, so that the height of the display screen 500 can be conveniently adjusted, and then it can be suitable for people of different heights, thereby improving the applicability of the display screen 500.

[0035] By means of the toothed disk 404, gear 403 and threaded rod 402, the four fixing plates 501 can be moved inward or outward synchronously, and by means of the plug rod 503 and plug hole 502, the position of the display screen 500 can be limited or unlimited, so that the display screen 500 can be quickly installed and disassembled, thereby improving the installation and disassembly efficiency of the display screen 500.

[0036] Further as Figure 3 and Figure 4 As shown, a fixing plate 501 is fixed to the top surface of the movable block 401, and plug rods 503 distributed up and down are fixed to the fixing plate 501 close to the display screen 500. Four groups of jacks 502 distributed in a circle and matched with the plug rods 503 are provided at the bottom of the outer wall of the display screen 500.

[0037] By providing the insertion rod 503 and the insertion hole 502 , the fixing plate 501 can be detachably connected to the display screen 500 , thereby facilitating the installation and removal of the display screen 500 .

[0038] Further as Figure 1 As shown, a worm gear 203 is fixed to the middle of the outer wall of the rotating rod 201, a worm 202 is rotatably connected to the middle of the top surface of the fixed frame 200, the worm 202 is meshed with the worm gear 203 on both sides, a servo motor 301 is fixed at the center of the bottom surface of the fixed frame 200, the output end of the servo motor 301 is fixed to the bottom surface of the worm 202, a PLC controller 300 is fixed to one side of the top surface of the placement plate 100, and the servo motor 301 is electrically connected to the PLC controller 300.

[0039] By providing the worm 202 and the worm wheel 203 , the rotating rods 201 on both sides can rotate to both sides respectively, thereby causing the driving rod 105 to rotate to both sides respectively, so that the moving rod 102 can move up or down to adjust the height of the display screen 500 .

[0040] Further as Figure 3 As shown, a rotating shaft 600 is fixed at the center of the bottom surface of the toothed disk 404 , and a hand wheel 601 is fixed at the bottom of the outer side wall of the rotating shaft 600 .

[0041] The hand wheel 601 is provided to enable the toothed disk 404 to rotate, thereby enabling the four gears 403 to rotate simultaneously.

[0042] In summary: when adjusting the height of the display screen 500, by operating the PLC controller 300, the PLC controller 300 controls the servo motor 301 to rotate, the servo motor 301 rotates to drive the worm 202 to rotate, the worm 202 rotates to drive the worm wheels 203 on both sides to rotate respectively, and then drives the rotating rods 201 on both sides to rotate respectively to both sides, the rotating rod 201 rotates to drive the driving rod 105 to rotate respectively to both sides, and through the cooperation between the driving rod 105 and the fixed shaft 104, the moving rod 102 moves, and the movement of the moving rod 102 causes the display screen 500 to move, so that the height of the display screen 500 can be adjusted.

[0043] When installing the display screen 500, place the display screen 500 at the center of the top surface of the mounting plate 100, and manually rotate the handwheel 601. The rotation of the handwheel 601 drives the toothed disk 404 to rotate, and the rotation of the toothed disk 404 drives the four gears 403 to rotate at the same time. The rotation of the gear 403 drives the threaded rod 402 to rotate, and the rotation of the threaded rod 402 drives the movable block 401 to move inward, thereby causing the insertion rod 503 to move inward until the insertion rod 503 is correspondingly engaged in the socket 502, so that the position of the display screen 500 is fixed.

[0044] When disassembling the display screen 500, the hand wheel 601 is manually rotated in the opposite direction to make the four fixing plates 501 move outward synchronously, so that the insertion rod 503 is separated from the insertion hole 502, and then the display screen 500 can be removed.

[0045] The PLC controller 300, the display screen 500 and the servo motor 301 can be purchased on the market, and are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A teaching image production and broadcasting device for broadcasting and television engineering, comprising a mounting plate (100), characterized in that: The center of the top surface of the placement plate (100) is detachably connected to a display screen (500); moving rods (102) are respectively fixed at the four corners of the bottom surface of the placement plate (100); a sleeve rod (101) is sleeved around the outer periphery of the moving rod (102); side plates (103) are respectively fixed to the two sides of the bottom surface of the moving rod (102); a fixed shaft (104) is fixed between two side plates (103); openings (106) are respectively provided on two opposite side surfaces of the outer wall of the sleeve rod (101); a fixing frame (200) is fixed between the bottoms of the four placement plates (100) that are close to one another; symmetrically distributed rotating rods (201) are rotatably connected between the inner side walls of the fixing frame (200) that are close to one another; driving rods (105) are respectively fixed to the two ends of the outer side wall of the rotating rod (201); the driving rods (105) are internally movably engaged with the fixed shaft (104).

2. The teaching image production and broadcasting device for broadcasting and television engineering according to claim 1, characterized in that: The top surface of the placement plate (100) is provided with four limiting grooves (400) distributed in a circumference, a movable block (401) is movably engaged in the limiting groove (400), a threaded rod (402) is rotatably connected between two side surfaces of the inner side walls of the limiting groove (400) that are away from each other, the movable block (401) is movably connected to the outer side wall of the threaded rod (402), and one end of the threaded rod (402) movably passes through the inner wall of the placement plate (100).

3. The teaching image production and broadcasting device for broadcasting and television engineering according to claim 2, characterized in that: A gear (403) is fixed to one end of the threaded rod (402), an annular groove (405) is provided at the bottom of the inner wall of the placement plate (100), a toothed disk (404) is rotatably connected in the annular groove (405), and the four gears (403) are respectively meshed with the toothed disk (404).

4. The teaching image production and broadcasting device for broadcasting and television engineering according to claim 3 is characterized in that: A fixing plate (501) is fixed on the top surface of the movable block (401), and plug rods (503) distributed up and down are fixed on the side of the fixing plate (501) close to the display screen (500), and four groups of plug holes (502) distributed in a circle and matched with the plug rods (503) are provided at the bottom of the outer wall of the display screen (500).

5. The teaching image production and broadcasting device for broadcasting and television engineering according to claim 4, characterized in that: A worm wheel (203) is fixed to the middle of the outer wall of the rotating rod (201); a worm (202) is rotatably connected to the middle of the top surface of the fixed frame (200); the worm (202) meshes with the worm wheels (203) on both sides; a servo motor (301) is fixed at the center of the bottom surface of the fixed frame (200); an output end of the servo motor (301) is fixed to the bottom surface of the worm (202); a PLC controller (300) is fixed to one side of the top surface of the placement plate (100); and the servo motor (301) is electrically connected to the PLC controller (300).

6. The teaching image production and broadcasting device for broadcasting and television engineering according to claim 5, characterized in that: A rotating shaft (600) is fixed at the center of the bottom surface of the toothed disk (404), and a hand wheel (601) is fixed at the bottom of the outer side wall of the rotating shaft (600).

Images