CN205523232U - Multi -media presentation device - Google Patents

Abstract

The utility model discloses a multimedia demonstration device, which comprises a rear frame and a front frame, the rear frame and the front frame are fixedly connected, an electronic whiteboard is nested in the rear frame, and a first movable board and a second movable board are arranged in the front frame. The first movable board and the second movable board are respectively located on both sides of the electronic whiteboard; the front frame is provided with rails above and below, the first movable board and the second movable board are provided with stoppers, the first movable board and the second movable board The lower part is provided with rollers, and the rollers and stoppers are arranged in the track. The first movable plate and the upper part of the second movable plate are connected with the connecting rod, the connecting rod is connected with the telescopic rod, the telescopic rod is connected with the drive motor, and the drive motor is connected with the telescopic rod. connected to the control panel. The utility model can meet the teacher's requirement of simultaneous projection and writing teaching; the movable boards on both sides can be automatically pushed to the middle or both sides by using the control panel and the driving motor, which provides convenience for students' learning.

Description

Multimedia Demonstration Device

technical field

The utility model relates to the technical field of multimedia, in particular to a multimedia demonstration device.

Background technique

Multimedia teaching has been favored by more and more teachers and students, and the use of multimedia in art teaching brings great convenience to teachers. The relatively fixed structure of the existing multimedia blackboard brings a lot of inconvenience to multimedia teaching. Teachers need to use the electronic whiteboard and also need the blackboard to cooperate with the explanation. However, in some multimedia classrooms, the projection screen is hung directly in front of the blackboard to cover the blackboard, so that teachers cannot write on the blackboard. In some classrooms, a projection screen is hung beside the blackboard, which affects The normal line of sight of the students. At the same time, when the electronic whiteboard is not used, writing on the fixed blackboard affects the students' sight.

Utility model content

In order to solve the above technical problems, the utility model provides a multimedia demonstration device, which has a simple structure and can realize the movable plate to move to the middle or both sides automatically.

In order to achieve the above object, the technical solution of the present utility model is: a multimedia demonstration device, including a rear frame and a front frame, the rear frame and the front frame are fixedly connected, an electronic whiteboard is nested in the rear frame, and a The first movable board and the second movable board, the first movable board and the second movable board are located on both sides of the electronic whiteboard; Stoppers, the lower part of the first movable plate and the second movable plate are provided with rollers, the rollers and the stoppers are arranged in the track, the upper parts of the first movable plate and the second movable plate are connected with the connecting rod, and the connecting rod is connected with the telescopic rod , the telescopic rod is connected with the driving motor, and the driving motor is connected with the control panel.

The control panel is provided with an inward button and an outward button, and the inward button and the outward button respectively control the movement of the first movable plate and the second movable plate to the middle and both sides.

The connecting rod is fixed on the sides of the first movable plate and the second movable plate.

A support plate is fixed on the lower part of the front frame, and a chalk box is fixed on one side of the support plate.

A tank body for collecting chalk dust is provided on one side of the support plate, and a through hole is provided at one end of the tank body.

The utility model can use the electronic whiteboard fixed in the middle to carry out projection to realize multimedia demonstration, and use the movable boards on both sides to write, so as to meet the requirements of teachers for simultaneous projection and writing teaching; at the same time, the control panel and drive motor can be used to automatically turn the The movable board is pushed to the middle or both sides, which provides convenience for students to learn; chalk and eraser can be placed on the support board, and at the same time, it is convenient for powder collection, reducing the impact of powder on teachers and students.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the front view of the utility model.

Fig. 2 is the A-A direction view in Fig. 1 of the utility model.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in FIG. 1 and FIG. 2 , a multimedia presentation device includes a rear frame 1 and a front frame 2 , the rear frame 1 and the front frame 2 are fixedly connected, and the front frame 2 is arranged in front of the rear frame 1 . The rear frame 1 and the front frame 2 can be made of plate or steel. An electronic whiteboard 4 is embedded in the rear frame 1 for projecting the teacher's courseware. The electronic whiteboard 4 is located in the middle, which is convenient for teachers to carry out multimedia presentations, and is convenient for students to watch when projecting. The front frame 2 is provided with a first movable board 3 and a second movable board 5, and the first movable board 3 and the second movable board 5 are used for teachers to write on the blackboard. The first movable board 3 and the second movable board 5 can be a blackboard written with chalk or a whiteboard written with color pens. The first movable board 3 and the second movable board 5 are located on both sides of the electronic whiteboard 4 respectively, and the teacher can use the first movable board 3 and the second movable board 5 on both sides to write on the blackboard when projecting.

Front frame 2 upper and lower parts are all provided with track 6, and first mobile plate 3 and second mobile plate 5 tops are all provided with stopper 9, and first movable plate 3 and second mobile plate 5 bottoms are all provided with roller 7, and roller 7 And block 9 is arranged in track 6. The rollers 7 are arranged in the track 6 at the bottom of the front frame 2 , and the stopper 9 is arranged in the track 6 at the top of the front frame 2 . The setting of the roller 7 facilitates the sliding of the first movable plate 3 and the second movable plate 5 in the track 6 left and right. The first movable plate 3 and the second movable plate 5 tops are also provided with a connecting rod 13, the connecting rod 13 is connected with the telescopic rod 12, the connecting rod 13 is fixed on the end of the telescopic rod 12, and the telescopic rod 12 is connected with the drive motor 11 , the driving motor 11 is connected with the control panel 14 . Control the positive and negative rotation of the driving motor 11 through the control panel 14 to realize the left and right expansion of the telescopic rod 12, thereby driving the connecting rod 13 to move left and right, and realize that the first movable plate 3 and the second movable plate 5 move to the middle or both sides automatically.

The control panel 14 is fixed on one side of the front frame 2, and is connected with the driving motor 11 and the power supply through wires. The control panel 14 is provided with an inward button 15 and an outward button 16, and the inward button 15 and the outward button 16 respectively control the first movable plate 3 and the second movable plate 5 to move to the middle and both sides simultaneously. At the same time, the control panel 14 can also be provided with a button for one-way driving the connecting rod 13 to realize the respective control of each movable panel. When no projection is needed, close the electronic whiteboard 4, slide the first movable board 3 and the second movable board 5 to the middle, and slide to the middle of the whole device, which is convenient for teachers to use and students to watch. When maintaining the electronic whiteboard 4 , it is only necessary to take the electronic whiteboard 4 out of the rear frame 1 . When the first movable plate 3 and the second movable plate 5 are damaged, they only need to be lifted up, and the rollers 7 can be taken out from the track 6 to be repaired or replaced, reducing the trouble caused by maintenance.

In order to drive the telescopic rod 12 to expand and contract, the driving motor 11 is arranged at the middle part of the telescopic rod 12, so in order to make the first movable plate 3 and the second movable plate 5 move to the middle, the connecting rod is fixed on the first movable plate and the second movable plate. side of the board.

Preferably, a support plate 10 is fixed on the lower part of the front frame 2 , and a chalk box 8 is fixed on one side of the support plate 10 . Chalk box 8 can be used to hold chalk, and support plate 10 has certain length and can place blackboard eraser. One side of the support plate 10 is provided with a tank body for collecting chalk powder, and the tank body and the chalk box 8 are located on different sides of the support plate 10 . Further, a through hole is provided at one end of the tank body, and the collected chalk powder can flow down through the through hole, and then be put into the garbage bin. The setting of the groove body and the through hole facilitates the collection of chalk dust, which reduces the influence of chalk dust on students and teachers.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of All changes or replacements should fall within the protection scope of the present utility model.

Claims (5)

1. a multimedia demonstrating device, including rear frame (1) and front bezel (2), rear frame (1) and the fixing connection of front bezel (2), it is characterized in that: described rear frame (1) is embedded is cased with electronic whiteboard (4), it is provided with the first portable plate (3) and the second portable plate (5), the first portable plate (3) and the second portable plate (5) in front bezel (2) and lays respectively at the both sides of electronic whiteboard (4)；Described front bezel (2) is equipped with track (6) up and down, first portable plate (3) and the second portable plate (5) top are equipped with block (9), first portable plate (3) and the second portable plate (5) bottom are equipped with roller (7), roller (7) and block (9) are arranged in track (6), first portable plate (3) is connected with connecting rod (13) with the second portable plate (5) top, connecting rod (13) is connected with expansion link (12), expansion link (12) is connected with driving motor (11), drives motor (11) to be connected with control panel (14).

Multimedia demonstrating device the most according to claim 1, it is characterized in that, described control panel (14) be provided with inside button (15) and outside button (16), inside button (15) and outside button (16) control respectively the first portable plate (3) and the second portable plate (5) to middle part, two side shiftings.

Multimedia demonstrating device the most according to claim 1, it is characterised in that described connecting rod (13) is fixed on the first portable plate (3) and the sidepiece of the second portable plate (5).

Multimedia demonstrating device the most according to claim 1, it is characterised in that described front bezel (2) bottom is fixed with gripper shoe (10), gripper shoe (10) side is fixed with chalk holder (8).

Multimedia demonstrating device the most according to claim 4, it is characterised in that the upper side of described gripper shoe (10) is provided with the cell body collecting chalk powder, and cell body one end is provided with through hole.