CN208706066U - A kind of multimedia performance device - Google Patents

Abstract

The utility model discloses a kind of multimedia performance devices, including the first demonstration board and the second demonstration board, one end of the second demonstration plate surface is fixedly connected with the first motor, one side surface of first motor is fixedly connected with first switch, first motor is fixedly connected with threaded rod, the surface of the threaded rod is arranged with sliding block, and the lower end of the sliding block is fixedly connected with connecting block.The multimedia performance device, by being arranged in the same level with blackboard, the expansion of right left-to-right is carried out on blackboard surface, the sight of viewer can be made to be in horizontality, and idler wheel can move back and forth the equipment, or replacement territory of use, more convenient, mobility strong, adjustable height also can satisfy the viewing demand of the people of different location, the storage basket of bottom setting can store the teaching aid used in presentation process, convenient to take at any time.

Description

A kind of multimedia performance device

Technical field

The utility model relates to multimedia equipment technical field, specially a kind of multimedia performance device.

Background technique

Multimedia is the synthesis of media, generally comprises text, the medias form such as sound and image, in computer In system, multimedia refers to a kind of man-machine interactive information interchange for combining two or more media and communications media, uses Media include interaction function provided by text, picture, photo, sound, animation and film and formula, nowadays multimedia The status demonstrated in modern education is also more and more important, and advantage possessed by itself is also increasingly agreed in education It is fixed.

Although being nowadays equipped with projector in the classroom of school carries out multimedia presentation, in order to meet the blackboard of teacher Projection screen, is generally all installed at the wall top above blackboard by the double requirements of teaching and projection teaching, even if projection screen is unfolded Afterwards, also not viewer is allowed to be in a kind of horizontal line of sight state, is easy to make sight and cervical vertebra fatigue over time later, influences to see The projection screen seeing process, while being fixedly mounted can only carry out in fixed area using can not be moved, mobility is poor, together When, and the teaching aid that about projection teaching when is required, it is often all stacked in dais, the sky at dais is alsied occupy while mixed and disorderly Between.

Utility model content

The purpose of this utility model is to provide a kind of multimedia performance devices, mentioned above in the background art to solve Problem.

To achieve the above object, the utility model provides the following technical solutions: a kind of multimedia performance device, including first One end of demonstration board, second support bar and the second demonstration board, the second demonstration plate surface is fixedly connected with the first motor, described One side surface of the first motor is fixedly connected with first switch, and first motor is fixedly connected with threaded rod, the threaded rod Surface be arranged with sliding block, the lower end of the sliding block is fixedly connected with connecting block, and the other end of the connecting block is fixedly connected with First demonstration board, the inside of the sliding block are equipped with through-hole, and the threaded rod runs through through-hole, and the threaded rod rotates phase with sliding block Even, the other end of the second demonstration plate surface is fixedly connected with the first fixed block, and the inside of first fixed block is equipped with the One bearing, the outer surface of the first bearing are fixedly linked with the first fixed block, the inner surface and threaded rod of the first bearing End surface be fixedly linked, it is described second demonstration plate surface bottom be equipped with the second motor, the side table of second motor Face is equipped with second switch, and the second motor stationary phase is connected with shaft, and it is fixed that the other end rotation of the shaft is connected with second The inside of block, second fixed block is equipped with second bearing, and the outer surface of the second bearing is fixedly linked in the second fixed block, The inner surface of the second bearing is fixedly linked in shaft, and the surface of the shaft is arranged with the first demonstration board, and described second drills Showing that the bottom stationary phase of plate is connected with first support bar, the surface of the first support bar is equipped with several first adjustment holes, and described the One adjustment hole is connected with fixed pin rotation, and the outer surface of the second support bar is equipped with the second adjustment hole, second adjustment hole It is connected with fixed pin rotation, the bottom end stationary phase of the second support bar is connected with pedestal, and the inside of the pedestal is equipped with containing box, The lower surface of the pedestal is fixedly connected with bottom plate, and the lower end of the bottom plate is fixedly connected with idler wheel.

Preferably, the first switch and second switch are forward-reverse switch.

Preferably, first demonstration board is projection screen, and the second demonstration board is blackboard.

Preferably, the inside of the through-hole is helicitic texture.

Preferably, first adjustment hole, the second adjustment hole and fixed pin are helicitic texture.

Compared with prior art, the utility model has the beneficial effects that the multimedia performance device, passes through setting and blackboard Same level on, carry out the expansion of right left-to-right on blackboard surface, the sight of viewer can be made to be in horizontality, and Idler wheel can move back and forth the equipment, or replacement territory of use, more convenient, mobility strong, adjustable height also can Enough meet the viewing demand of the people of different location, the storage basket of bottom setting can deposit the teaching aid used in presentation process It puts, it is convenient to take at any time.

Detailed description of the invention

Fig. 1 is the overall structure diagram of the utility model；

Fig. 2 is the second support bar structural schematic diagram of the utility model；

In figure: 1 first demonstration board, 2 second demonstration boards, 3 first motors, 31 first switches, 32 through-holes, 33 sliding blocks, 34 spiral shells Rasp bar, 35 first fixed blocks, 36 first bearings, 37 connecting blocks, 4 second motors, 41 second switches, 43 second fixed blocks, 44 Two bearings, 45 shafts, 5 first support bars, 51 first adjustment holes, 52 fixed pins, 53 second support bars, 54 pedestals, 55 containing boxs, 56 second adjustment holes, 6 bottom plates, 7 idler wheels.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of multimedia performance device, including first drills Showing plate 1, second support bar 53 and the second demonstration board 2, the one end on 2 surface of the second demonstration board is fixedly connected with the first motor 3, and first One side surface of motor 3 is fixedly connected with first switch 31, the model XD-3420 short axle of the first motor 3, the first motor 3 with First switch 31 and external power supply are connected in series, and the first motor 3 is fixedly connected with threaded rod 34, and the surface of threaded rod 34 is arranged with Sliding block 33, the lower end of sliding block 33 are fixedly connected with connecting block 37, and the other end of connecting block 37 is fixedly connected with the first demonstration board 1, The inside of sliding block 33 is equipped with through-hole 32, and threaded rod 34 runs through through-hole 32, and the inside of through-hole 32 is helicitic texture, threaded rod 34 and sliding The rotation of block 33 is connected, and the other end on 2 surface of the second demonstration board is fixedly connected with the first fixed block 35, the inside of the first fixed block 35 Equipped with first bearing 36, the outer surface of first bearing 36 is fixedly linked with the first fixed block 35, the inner surface of first bearing 36 with The end surface of threaded rod 34 is fixedly linked, and the bottom on 2 surface of the second demonstration board is equipped with the second motor 4, the side of the second motor 4 Surface is equipped with second switch 41, the model JS-3420 of the second motor 4, the second motor 4 and second switch 41 and external electrical subject string Connection connection, first switch 31 and second switch 41 are forward-reverse switch, and 4 stationary phase of the second motor is connected with shaft 45, shaft 45 Other end rotation be connected with the second fixed block 43, the inside of the second fixed block 43 is equipped with second bearing 44, second bearing 44 Outer surface is fixedly linked in the second fixed block 43, and the inner surface of second bearing 44 is fixedly linked in shaft 45, the surface of shaft 45 It is arranged with the first demonstration board 1, the first demonstration board 1 is projection screen, and the second demonstration board 2 is blackboard, and the bottom of the second demonstration board 2 is solid Surely it is connected with first support bar 5, the surface of first support bar 5 is equipped with several first adjustment holes 51, the first adjustment hole 51 and fixation The rotation of pin 52 is connected, and the outer surface of second support bar 53 is equipped with the second adjustment hole 56, and the second adjustment hole 56 is rotated with fixed pin 52 It is connected, the first adjustment hole 51, the second adjustment hole 56 and fixed pin 52 are helicitic texture, the bottom end stationary phase of second support bar 53 It is connected with pedestal 54, the inside of pedestal 54 is equipped with containing box 55, and the lower surface of pedestal 54 is fixedly connected with bottom plate 6, under bottom plate 6 End is fixedly connected with idler wheel 7.

The multimedia performance device makes shaft 45 start to revolve immediately by starting the first motor 3 and the second motor 4 simultaneously Turn, the helicitic texture matching thread bar 34 inside sliding block 33 is moved back and forth, to drive the first demonstration by connecting block 37 Plate 1 moves left and right, and the first demonstration board 1 can be made to be unfolded or pack up, when if you need to adjust height, by second in second support bar 53 After adjustment hole 56 is corresponding with any first adjustment hole 51, fixed pin 52 is screwed into and is screwed, the other end of fixed pin 52 resists The inner surface of second support bar 53, to first support bar 5 and second support bar 53 be fixed, the receipts inside pedestal 54 Case 55 of receiving can store tool relevant to presentation process, convenient to take at any time, the setting of idler wheel 7 can push this equipment with Shi Jinhang is mobile, and mobility is stronger.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of multimedia performance device, including the first demonstration board (1), second support bar (53) and the second demonstration board (2), special Sign is: the one end on the second demonstration board (2) surface is fixedly connected with the first motor (3), the side of first motor (3) Surface is fixedly connected with first switch (31), and first motor (3) is fixedly connected with threaded rod (34), the threaded rod (34) Surface be arranged with sliding block (33), the lower end of the sliding block (33) is fixedly connected with connecting block (37), the connecting block (37) The other end is fixedly connected with the first demonstration board (1), and the inside of the sliding block (33) is equipped with through-hole (32), and the threaded rod (34) is passed through Reach through hole (32), the threaded rod (34) are connected with sliding block (33) rotation, and the other end on the second demonstration board (2) surface is fixed It is connected with the first fixed block (35), the inside of first fixed block (35) is equipped with first bearing (36), the first bearing (36) outer surface is fixedly linked with the first fixed block (35), and the one of the inner surface of the first bearing (36) and threaded rod (34) End surfaces are fixedly linked, and the bottom on the second demonstration board (2) surface is equipped with the second motor (4), and the one of second motor (4) Side surface is equipped with second switch (41), and the second motor (4) stationary phase is connected with shaft (45), the other end of the shaft (45) Rotation is connected with the second fixed block (43), and the inside of second fixed block (43) is equipped with second bearing (44), second axis The outer surface for holding (44) is fixedly linked in the second fixed block (43), and the inner surface of the second bearing (44) is fixedly linked in shaft (45), the surface of the shaft (45) is arranged with the first demonstration board (1), and the bottom stationary phase of second demonstration board (2) is connected with The surface of first support bar (5), the first support bar (5) is equipped with several first adjustment holes (51), first adjustment hole (51) being connected with fixed pin (52) rotation, the outer surface of the second support bar (53) is equipped with the second adjustment hole (56), and described the Two adjustment holes (56) are connected with fixed pin (52) rotation, and the bottom end stationary phase of the second support bar (53) is connected with pedestal (54), The inside of the pedestal (54) is equipped with containing box (55), and the lower surface of the pedestal (54) is fixedly connected with bottom plate (6), the bottom The lower end of plate (6) is fixedly connected with idler wheel (7).

2. a kind of multimedia performance device according to claim 1, it is characterised in that: the first switch (31) and second Switching (41) is forward-reverse switch.

3. a kind of multimedia performance device according to claim 1, it is characterised in that: first demonstration board (1) is to throw Shadow curtain, the second demonstration board (2) are blackboard.

4. a kind of multimedia performance device according to claim 1, it is characterised in that: the inside of the through-hole (32) is spiral shell Line structure.

5. a kind of multimedia performance device according to claim 1, it is characterised in that: first adjustment hole (51), Two adjustment holes (56) and fixed pin (52) are helicitic texture.