CN214474404U - Multimedia teaching device - Google Patents

Abstract

The utility model discloses a multimedia teaching device, which comprises a frame, a writing board, a rotating component and a projection curtain, wherein the frame is embedded and installed in the wall body, the outer side wall of the frame is provided with a writing board installation groove, the inner part of the frame is provided with a hollow chamber, the outlet end of the hollow chamber is positioned above the writing board installation groove, the writing board is installed in the writing board installation groove, the rotating component comprises a rotating shaft inserted into the hollow chamber from the outer side edge of the frame and a knob connected with the end part of the rotating shaft positioned on the outer side part of the frame, the knob is provided with a screw rod capable of spirally extending into the side wall of the frame, the projection curtain is wound on the outer wall of the rotating shaft, the head end of the projection curtain penetrates out from the outlet end, the head end of the projection curtain is provided with a baffle, when the projection curtain is completely accommodated in the hollow chamber, the baffle seals the exit end, and this kind of multimedia teaching device facilitates the use, is convenient for moreover to accomodating and depositing of curtain.

Description

Multimedia teaching device

Technical Field

The utility model relates to a teaching equipment technical field specifically is a multimedia teaching device.

Background

In order to be beneficial to protecting the eyesight of students, the blackboard of a common classroom is green, and is suitable for teachers to write by chalk and protecting the eyesight of students, while the projector is a necessary device for assisting teaching, and has the functions of enhancing the learning interest of the students, rendering the learning atmosphere, improving the learning enthusiasm and widening the vision of the students.

In order to be convenient for students to watch, a projection area is generally arranged at the middle position of a blackboard, but the projector has extremely poor imaging effect on a green blackboard and must be projected on a white curtain. The traditional method is that a teacher hangs a white curtain on a blackboard temporarily when the curtain is used, and the curtain is taken down when the curtain is not used, so that the curtain is not only extremely inconvenient to use, but also not beneficial to storage and keeping of the curtain.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The present invention has been made in view of the above and/or other problems that exist in the prior art teaching devices.

Therefore, the utility model aims at providing a multimedia teaching device facilitates the use, is convenient for moreover to the accomodating of curtain and deposit.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a multimedia teaching apparatus, comprising:

the frame is embedded and installed in the wall body, the outer side wall of the frame is provided with a writing board installation groove, a hollow cavity is formed in the frame, and the outlet end of the hollow cavity is located above the writing board installation groove;

the writing board is arranged in the writing board mounting groove;

the rotating assembly comprises a rotating shaft inserted into the hollow cavity from the outer side edge of the frame and a knob connected with the end part of the rotating shaft positioned on the outer side part of the frame, and the knob is provided with a screw rod capable of spirally extending into the side wall of the frame;

the projection curtain is wound on the outer wall of the rotating shaft, the head end of the projection curtain penetrates out of the outlet end, and the head end of the projection curtain is provided with a baffle;

when the projection curtain is completely accommodated in the hollow cavity, the outlet end is closed by the baffle.

As a preferable scheme of the multimedia teaching device of the utility model, the top and the bottom of the mounting groove of the writing board are provided with limit raised lines;

grooves are formed in the positions, located on the two sides of the limiting convex strips, of the tops of the writing board mounting grooves, and limiting sliding blocks capable of sliding up and down along the inner walls of the grooves are arranged in the grooves;

and the top and the bottom of the writing board are provided with clamping grooves matched with the limiting convex strips.

As a preferred scheme of multimedia teaching device, wherein, have in the recess and prevent the stop part that spacing slider deviates from its inside.

As a multimedia teaching device a preferred scheme, wherein, the threaded hole is seted up to the lateral wall of knob, the screw rod knob passes the screw hole, and can in the screw hole knob removes in the jack that extends to the frame relevant position.

As a preferred embodiment of the multimedia teaching apparatus of the present invention, wherein the frame is made of acrylic material.

Compared with the prior art, the utility model discloses the beneficial effect who has is: through establishing the projection curtain on the outer wall of pivot to the head portion wears out from the cavity indoor, when needs projection, the pulling projection curtain makes the projection curtain cover the clipboard, and after the use was accomplished, the pivot is rotated, makes projection curtain part rollback to the pivot on, hides the projection curtain in well cavity intracavity, both facilitates the use, and also be convenient for accomodate and deposit hiding of curtain moreover.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic view of a multimedia teaching apparatus in a state of being used in projection on a projection screen;

fig. 2 is a schematic view of the multimedia teaching apparatus in a state of storing the projection screen;

fig. 3 is a partial structural sectional view of the multimedia teaching apparatus in a state where the projection screen is stored;

fig. 4 is a schematic view of a part of the structure of the multimedia teaching apparatus of the present invention shown in fig. 1;

fig. 5 is the utility model relates to a writing board schematic diagram in multimedia teaching device fig. 1.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a multimedia teaching device facilitates the use, is convenient for moreover to the accomodating and depositing of curtain.

Fig. 1 to 5 are schematic structural views of an embodiment of a multimedia teaching apparatus according to the present invention, please refer to fig. 1 to 5, the main body of the multimedia teaching apparatus of the embodiment includes a frame 100, a writing board 200, a rotating assembly 300 and a projection curtain 400.

The frame 100 is embedded in a wall, and has a writing board mounting groove 110 on an outer sidewall thereof for mounting the writing board 200, and a hollow chamber 120 inside thereof, and an outlet end 120a of the hollow chamber 120 is located above the writing board mounting groove 110 for mounting a part of the structure of the rotating assembly 300, so that the projection curtain 400 can be hidden in the frame 100 when not in use. Preferably, in the present embodiment, the frame 100 is made of an acryl material, so that the frame 100 is light and convenient to install and transport.

The writing board 200 is installed in the writing board installation groove 110 for a teacher to write a teaching.

The rotating assembly 300 is used for winding and unwinding the projection curtain 400, and specifically, the rotating assembly 300 includes a rotating shaft 310 inserted into the hollow cavity 120 from the outer side edge of the frame 100 and a knob 320 connected to the end of the rotating shaft 310 located at the outer side portion of the frame 100, the rotating shaft 310 is driven to rotate in the hollow cavity 120 of the frame 100 by rotating the knob 320, the projection curtain 400 is wound and unwound, so that the projection curtain 400 can be pulled out or accommodated in the hollow cavity 120, a screw 320a capable of extending into the side wall of the frame 100 is arranged on the knob 320, and after the rotating shaft 310 rotates and winds the projection curtain 400, the rotating shaft 310 is locked to prevent the rotating shaft 310 from rotating and the projection curtain 400 is removed from the hollow cavity 120. Preferably, in this embodiment, a threaded hole is formed in a side wall of the knob 320, and the screw 320a is inserted through the threaded hole and can be moved in the threaded hole to extend into the insertion hole at a corresponding position of the frame 100.

The projection curtain 400 is wound on the outer wall of the rotating shaft 310, the head end of the projection curtain 400 penetrates out of the outlet end 120a, and the head end of the projection curtain 400 is provided with a baffle 410, when the projection curtain 400 is completely accommodated in the hollow cavity 120, the baffle 410 seals the outlet end 120a, so that dust or other impurities are prevented from floating into the hollow cavity 120 of the frame 100, and the projection curtain 400 is effectively protected.

With reference to fig. 1 to 5, a multimedia teaching apparatus according to this embodiment is specifically used as follows: when the projection screen 400 is normally stored, a teacher can write characters on the writing board 200, the projection screen 400 is located in the hollow chamber 120 and is wound on the rotating shaft 310, and the baffle 410 seals the outlet end 120a to prevent dust or other impurities from floating into the hollow chamber 120 of the frame 100, so as to effectively protect the projection screen 400, at this time, as shown in fig. 2 and 3, when the projection screen 400 is required to be used for mapping images, the screw 320a is turned in the threaded hole of the turn knob to make the screw 320a come out from the insertion hole of the frame 100, then the rotating shaft 310 is rotated to make the projection screen 310 slowly release from the hollow chamber 120 until the writing board 200 is completely covered, at this time, the state of the multimedia teaching device is as shown in fig. 1.

Further, in this embodiment, in order to facilitate the assembly and disassembly of the writing board 200 and the frame 100, please refer to fig. 1, 4 and 5 again, the top and the bottom of the writing board mounting groove 110 are provided with a limiting convex strip 110a, the top of the writing board mounting groove 110 is provided with grooves 110b at positions at two sides of the limiting convex strip 110a, the grooves 110b are provided with limiting sliders 110c capable of sliding up and down along the inner wall of the grooves 110b, the top and the bottom of the writing board 200 are provided with slots 210 adapted to the limiting convex strip 110a, when the writing board 200 and the frame 100 are mounted, the limiting sliders 110c slide up in the grooves 110b to completely hide the limiting sliders 110c in the grooves 110b, then the slots 210 of the writing board 200 are aligned with the limiting convex strip 110a, the writing board 200 is mounted in the writing board mounting groove 110, and then the limiting sliders 110c are pulled out from the grooves 110b, the card is in the both sides to clipboard 200, and is spacing to clipboard 200's both sides, prevents clipboard 200 from following the roll-off in clipboard mounting groove 110.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (5)

1. A multimedia teaching apparatus, comprising:

the writing board frame comprises a frame (100) which is embedded and installed in a wall body, wherein the outer side wall of the frame is provided with a writing board installation groove (110), a hollow chamber (120) is arranged in the frame, and an outlet end (120 a) of the hollow chamber (120) is positioned above the writing board installation groove (110);

a writing board (200) installed in the writing board installation groove (110);

the rotating assembly (300) comprises a rotating shaft (310) inserted into the hollow cavity (120) from the outer side edge of the frame (100) and a knob (320) connected with the end part of the rotating shaft (310) positioned at the outer side part of the frame (100), wherein the knob (320) is provided with a screw rod (320 a) capable of spirally extending into the side wall of the frame (100);

the projection curtain (400) is wound on the outer wall of the rotating shaft (310), the head end of the projection curtain (400) penetrates out of the outlet end (120 a), and the head end of the projection curtain (400) is provided with a baffle (410);

wherein the baffle (410) closes the outlet end (120 a) when the projection curtain (400) is fully received within the hollow chamber (120).

2. The multimedia teaching device as claimed in claim 1, wherein the top and bottom of the writing board mounting groove (110) are provided with a limit rib (110 a);

grooves (110 b) are formed in the positions, located on the two sides of the limiting convex strip (110 a), of the top of the writing board mounting groove (110), and limiting sliders (110 c) capable of sliding up and down along the inner wall of each groove (110 b) are arranged in each groove (110 b);

the top and the bottom of the writing board (200) are provided with clamping grooves (210) matched with the limiting convex strips (110 a).

3. A multimedia teaching device according to claim 2, wherein the recess (110 b) has a blocking portion therein for preventing the position-restricting slider (110 c) from being removed from the inside thereof.

4. The multimedia teaching device according to claim 1, wherein the side wall of the knob (320) is provided with a threaded hole, and the screw (320 a) knob passes through the threaded hole and can be moved in the threaded hole to extend into the corresponding position of the frame (100).

5. A multimedia teaching device according to claim 1, characterized in that the frame (100) is made of acrylic material.

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