CN220075999U - A multimedia teaching blackboard - Google Patents

Abstract

The utility model discloses a multimedia teaching blackboard, which comprises an intelligent blackboard capable of playing images, wherein the intelligent blackboard is arranged; further comprises: the bottom symmetrical bearing of the intelligent blackboard is connected with a first reciprocating screw rod, the bottom of the first reciprocating screw rod is in threaded connection with a supporting column, the bottom of the supporting column is fixedly connected with the top of the base, and the bottom of the base is contacted with the ground through a roller; the left side and the right side of the rear part of the intelligent blackboard are symmetrically provided with storage grooves, extension plates are connected in the storage grooves, and the extension plates and the storage grooves are attached and slide; the left and right sides of intelligent blackboard all are connected with the board that wipes, and wipe the board and be used for wiping the extension board. This multimedia teaching blackboard through the setting of extension board, can expand the usable floor area, accomodates the groove and can conveniently accomodate the extension board, can adjust the use height of blackboard simultaneously, and the student of being convenient for can see the comprehensive content of show on the blackboard.

Description

A kind of multimedia teaching blackboard

Technical field

The utility model relates to the technical field of multimedia teaching blackboards, specifically a multimedia teaching blackboard.

Background technique

Ideological and political education is an important teaching work, and the blackboard in the classroom is one of the most frequently used teaching tools for teachers. In recent years, with the popularization of multimedia teaching, many schools also have multimedia classrooms. Multimedia classrooms use Multimedia teaching blackboard;

In a multimedia teaching blackboard disclosed with the publication number CN210249155U, one end of the second blackboard is provided with a baffle. By setting the baffle, the position of the second blackboard is limited when the second blackboard is pushed inward to prevent all the second blackboard from entering. The blackboard is installed in the frame and is inconvenient to pull out when the second blackboard needs to be used. There is a handle on the side of the baffle away from the second blackboard. The handle makes it easier to push and pull the second blackboard;

However, during the use of the above solution, when using the second blackboard, it is necessary to set a baffle limiter and a handle for assistance. The area is limited and time-consuming to use. It is inconvenient to expand and store the use area, and the height cannot be adjusted. , causing the students behind to not see clearly the content at the bottom, which brings great inconvenience to the teacher's normal teaching work.

Therefore, we propose a multimedia teaching blackboard to solve the problems raised above.

Utility model content

The purpose of this utility model is to provide a multimedia teaching blackboard to solve the problem of the above-mentioned background technology that the existing multimedia teaching blackboards currently on the market are inconvenient to expand and store the use area, and at the same time cannot adjust the height, causing students behind The inability to clearly see the content at the bottom brings great inconvenience to teachers' normal teaching work.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a multimedia teaching blackboard, including an intelligent blackboard capable of playing images;

Also includes:

The bottom symmetrical bearing of the smart blackboard is connected to a first reciprocating screw, and the bottom of the first reciprocating screw is threadedly connected to a support column, and the bottom of the support column is fixedly connected to the top of the base, and the bottom of the base is in contact with the ground through rollers ;

There are storage slots symmetrically provided on the left and right sides of the rear part of the smart blackboard, and an extension plate is connected to the storage slot, and the extension plate and the storage slot fit and slide together;

The left and right sides of the smart blackboard are connected with wiping boards, and the wiping boards are used to wipe the extension board.

Preferably, the middle part of the bottom of the smart blackboard is connected to a rotating rod through a bearing, and the bottom outer side of the rotating rod is connected to the sleeve through the first ratchet assembly, and the sleeve bearing is connected to the middle part of the bottom of the smart blackboard, and the sleeve passes through The rotating rod and the first ratchet assembly form a one-way rotation structure, so that after the rotating rod rotates, the first ratchet assembly drives the sleeve to rotate.

Preferably, the outside of the sleeve is connected to the tops of the first reciprocating screws on both sides through a sprocket mechanism, and the diameter of the first reciprocating screw is smaller than the diameter of the sleeve, and the smart blackboard passes through the first reciprocating screw. A height adjustment structure is formed, so that after the sleeve rotates, it will drive the first reciprocating screw rod to rotate through the sprocket mechanism.

Preferably, the top of the rotating rod is connected to the rear inner wall of the smart blackboard through a bearing, and the top of the rotating rod is connected to the cross bar through a bevel tooth connector, and the cross bar is connected to the rotating drum through a second ratchet assembly, Moreover, the symmetrical bearing of the rotating drum is connected to the top of the inner wall of the rear side of the smart blackboard. At the same time, the end of the rotating drum is connected to the second reciprocating screw rod, so that after the rotating rod drives the cross bar to rotate through the bevel tooth connector, the cross bar will pass through the second reciprocating screw rod. The two ratchet components drive the rotating drum to rotate, and the rotating drum drives the second reciprocating screw to rotate synchronously.

Preferably, the second reciprocating screw bearing is connected in the storage groove, and an extension plate is threadedly connected to the second reciprocating screw rod, and the extension plate forms a horizontal sliding structure through the second reciprocating screw rod and the storage groove, so that the second reciprocating screw rod is connected to the storage groove. After the reciprocating screw rod rotates, it will drive the extension plate to slide in the storage groove.

Preferably, vertical grooves are symmetrically provided in the middle of both sides of the smart blackboard, and a slider is connected to the vertical groove, and a spring is installed between the slider and the vertical groove, and a wiper plate is hinged on the outside of the slider to wipe the The length of the plate is equal to the length of the extension plate, so that after the slider moves in the vertical groove, the spring will be compressed and the wiper plate will be driven to move synchronously.

Compared with the existing technology, the beneficial effects of the multimedia teaching blackboard of the present utility model are: through the rotation of the second reciprocating screw rod, the extension plates on both sides can be driven for extended use, and the smart blackboard in the middle can carry out pictures, images, data, etc. , the extension boards on both sides can be used for handwriting, and can be retracted into the storage slot when not in use, without taking up extra space. At the same time, the rotation of the first reciprocating screw can adjust the height of the smart blackboard, so that students can see the bottom of the blackboard. The specific contents are as follows:

1. After the set rotating rod is rotated, the cross bar will be driven to rotate through the bevel tooth connector on the top. After the cross bar is rotated, the rotating drum will be driven to rotate through the second ratchet assembly. After the rotating drum rotates, the second reciprocating wire will be driven. When the rod rotates, the second reciprocating screw rod rotates to drive the extension plate out of the storage slot, which facilitates writing during ideological and political education, increases the usable area of the blackboard, and can be retracted into the storage slot when not in use later. , reduce the occupied space;

2. After the set rotating rod is reversed, the first ratchet assembly will drive the sleeve to rotate. After the sleeve rotates, the sprocket mechanism will drive the first reciprocating screw rods on both sides to rotate. The first reciprocating screw rod will rotate. Then the support column will slide to adjust the height of the smart blackboard, so that students behind can see the content at the bottom of the blackboard and it is easy to operate.

Description of drawings

Figure 1 is a schematic diagram of the overall front structure of the utility model;

Figure 2 is a schematic cross-sectional view of the smart blackboard of the present invention;

Figure 3 is an enlarged structural schematic diagram of position A in Figure 1 of the present utility model;

Figure 4 is an enlarged structural schematic diagram of position B in Figure 2 of the present utility model;

Figure 5 is an enlarged structural schematic diagram of C in Figure 2 of the present invention.

In the picture: 1. Intelligent blackboard; 2. The first reciprocating screw rod; 3. Support column; 4. Base; 5. Rotary rod; 6. The first ratchet assembly; 7. Sleeve; 8. Cross bar; 9. Two ratchet components; 10. Rotating drum; 11. Second reciprocating screw rod; 12. Storage slot; 13. Extension plate; 14. Vertical slot; 15. Slider; 16. Spring; 17. Wiping plate.

Implementation

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Please refer to Figures 1-5. The present utility model provides a technical solution: a multimedia teaching blackboard, including an intelligent blackboard 1 capable of playing images, and also includes: a first reciprocating screw rod connected to a symmetrical bearing at the bottom of the intelligent blackboard 1 2. The bottom of the first reciprocating screw 2 is threadedly connected to the support column 3, and the bottom of the support column 3 is fixedly connected to the top of the base 4, and the bottom of the base 4 is in contact with the ground through the roller, and the middle of the bottom of the smart blackboard 1 runs through the bearing. A rotating rod 5 is connected, and the bottom outer side of the rotating rod 5 is connected to the sleeve 7 through the first ratchet assembly 6, and the sleeve 7 is bearing-connected to the bottom middle of the smart blackboard 1, and the sleeve 7 passes through the rotating rod 5 and the first ratchet assembly 6. A ratchet assembly 6 forms a one-way rotation structure. The outside of the sleeve 7 is connected to the tops of the first reciprocating screw rods 2 on both sides through a sprocket mechanism, and the diameter of the first reciprocating screw rod 2 is smaller than the diameter of the sleeve 7. And the smart blackboard 1 forms a height adjustment structure through the first reciprocating screw rod 2, as shown in Figures 1 and 3. First, when in use, adjust the height of the smart blackboard 1 and turn the rotating rod 5 at the bottom of the smart blackboard 1. , after the rotating rod 5 rotates, it will drive the sleeve 7 to rotate through the first ratchet assembly 6. After the sleeve 7 rotates, it will drive the first reciprocating screw rods 2 on both sides to rotate synchronously through the sprocket mechanism. After the rod 2 rotates, it will move vertically on the support column 3. The support column 3 and the base 4 support and stabilize the entire device, and the first reciprocating screw rod 2 will drive the smart blackboard 1 to perform a high degree of movement after vertical movement. Adjust so that students in the back row can also see all the content on smart blackboard 1;

There are storage slots 12 symmetrically provided on the left and right sides of the rear part of the smart blackboard 1, and an extension plate 13 is connected to the storage slot 12, and the extension plate 13 and the storage slot 12 slide together, and the top of the rotating rod 5 is connected through a bearing. In the rear inner wall of the smart blackboard 1, the top of the rotating rod 5 is connected to the cross bar 8 through a bevel tooth connector, and the cross bar 8 is connected to the rotating drum 10 through the second ratchet assembly 9, and the rotating drum 10 is connected with a symmetrical bearing At the top of the rear inner wall of the smart blackboard 1, the end of the rotating drum 10 is connected to the second reciprocating screw 11. The second reciprocating screw 11 is bearing-connected in the storage groove 12, and the second reciprocating screw 11 is threaded The extension plate 13 is connected, and the extension plate 13 forms a horizontal sliding structure through the second reciprocating screw 11 and the storage slot 12. As shown in Figures 2 and 4, the smart blackboard 1 can process images, values and other data for ideological and political teaching. Display, and manual writing can be performed through the extension plate 13. Rotate the rotating rod 5 in the reverse direction. At this time, the first ratchet assembly 6 is in a disengaged state, and the top of the rotating rod 5 will drive the cross bar 8 to rotate through the bevel tooth connector. After the crossbar 8 rotates, it will drive the drum 10 to rotate through the second ratchet assembly 9. After the drum 10 rotates, it will drive the second reciprocating screw rod 11 to rotate synchronously. After the second reciprocating screw rod 11 rotates, it will drive the extension plate. 13 extends out of the storage slot 12 for use, but when it needs to be retracted, the second reciprocating screw 11 continues to rotate to retract the extension plate 13 into the storage slot 12, thereby reducing the occupied space;

Wiping boards 17 are connected to the left and right sides of the smart blackboard 1, and the wiping boards 17 are used to wipe the extension board 13. Vertical slots 14 are symmetrically provided in the middle of both sides of the smart blackboard 1, and sliders are connected in the vertical slots 14. 15, and a spring 16 is installed between the slider 15 and the vertical groove 14, and a wiper plate 17 is hinged on the outside of the slider 15. At the same time, the length of the wiper plate 17 is equal to the length of the extension plate 13, as shown in Figure 1-2 and Figure 5 As shown in the figure, before the extension plate 13 is retracted into the storage slot 12, it needs to be cleaned. At this time, the cleaning plate 17 is rotated to the horizontal position, and then the slider 15 is pulled down. The slider 15 will compress the spring 16 and in the vertical slot 14 to move, thereby driving the wiping plate 17 to clean the extension plate 13. After use, release the slider 15, the spring 16 drives the slider 15 to reset, and then rotate the wiping plate 17 to the vertical state again;

Working principle: When using the multimedia teaching blackboard, as shown in Figure 1-5, first, the smart blackboard 1 can display images, values and other materials of ideological and political teaching. Turn the rotating lever 5 at the bottom of the intelligent blackboard 1. 5 will drive the sleeve 7 to rotate through the first ratchet assembly 6. After the sleeve 7 rotates, it will drive the first reciprocating screw rod 2 on both sides to rotate synchronously through the sprocket mechanism. The first reciprocating screw rod 2 will rotate. After that, it will move vertically on the support column 3. The support column 3 and the base 4 support and stabilize the entire device, and the first reciprocating screw rod 2 will drive the smart blackboard 1 to adjust the height after moving vertically. It is convenient for students in the back row to see all the content on the smart blackboard 1. Turn the rotating lever 5 in the opposite direction. At this time, the first ratchet assembly 6 is in a disengaged state, and the top of the rotating lever 5 will drive the cross bar through the bevel tooth connector. 8 rotates. After the cross bar 8 rotates, it will drive the drum 10 to rotate through the second ratchet assembly 9. After the drum 10 rotates, it will drive the second reciprocating screw rod 11 to rotate synchronously. After the second reciprocating screw rod 11 rotates, It will drive the extension plate 13 to extend out of the storage slot 12 for use, but when it needs to be retracted, the second reciprocating screw 11 continues to rotate to retract the extension plate 13 into the storage slot 12, thereby reducing the occupied space and removing the wiper plate 17 Rotate to the horizontal position, and then pull down the slider 15. The slider 15 will compress the spring 16 and move in the vertical groove 14, thereby driving the cleaning plate 17 to clean the extension plate 13. After use, release the slider 15 and the spring 16 drives the slider 15 to reset, and then rotates the wiping plate 17 to the vertical state again, thereby completing a series of tasks.

Contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Within the spirit and principles of the present utility model, any modifications, equivalent substitutions, improvements, etc. shall be included in the protection scope of the present utility model.

Claims (6)

1. A multimedia teaching blackboard comprises an intelligent blackboard (1) capable of playing images;

the method is characterized in that: further comprises:

the bottom symmetrical bearing of the intelligent blackboard (1) is connected with a first reciprocating screw rod (2), the bottom of the first reciprocating screw rod (2) is in threaded connection with a support column (3), the bottom of the support column (3) is fixedly connected with the top of the base (4), and the bottom of the base (4) is in contact with the ground through a roller;

the left side and the right side of the rear part of the intelligent blackboard (1) are symmetrically provided with storage grooves (12), an extension plate (13) is connected in each storage groove (12), and the extension plate (13) is attached to and slides with the storage grooves (12);

the left side and the right side of the intelligent blackboard (1) are both connected with a wiping board (17), and the wiping board (17) is used for wiping the extension board (13).

2. A multimedia teaching blackboard according to claim 1, characterized in that: the bottom middle part of intelligent blackboard (1) runs through the bearing and is connected with bull stick (5), and the bottom outside of bull stick (5) is connected with sleeve (7) through first ratchet subassembly (6), and sleeve (7) bearing connection is in the bottom middle part of intelligent blackboard (1), and sleeve (7) constitute unidirectional rotating structure through bull stick (5) and first ratchet subassembly (6) moreover.

3. A multimedia teaching blackboard according to claim 2, characterized in that: the outside of sleeve (7) is connected with the top of the first reciprocating screw rod (2) of both sides through sprocket mechanism, and the diameter of first reciprocating screw rod (2) is less than the diameter of sleeve (7) to intelligent blackboard (1) constitutes high adjusting structure through first reciprocating screw rod (2).

4. A multimedia teaching blackboard according to claim 3, characterized in that: the top of bull stick (5) runs through the bearing and is connected in intelligent blackboard (1) rear side inner wall, and the top of bull stick (5) is connected with horizontal pole (8) through the awl tooth connecting piece to horizontal pole (8) are connected with rotary drum (10) through second ratchet subassembly (9), and rotary drum (10) symmetry bearing is connected in the top of intelligent blackboard (1) rear side inner wall moreover, and the tip of rotary drum (10) is connected with second reciprocating screw (11) simultaneously.

5. A multimedia teaching blackboard according to claim 4, wherein: the second reciprocating screw rod (11) is connected in the storage groove (12) in a bearing mode, an extension plate (13) is connected to the second reciprocating screw rod (11) in a threaded mode, and the extension plate (13) and the storage groove (12) form a horizontal sliding structure through the second reciprocating screw rod (11).

6. A multimedia teaching blackboard according to claim 1, characterized in that: vertical grooves (14) are symmetrically formed in the middle of two sides of the intelligent blackboard (1), sliding blocks (15) are connected in the vertical grooves (14), springs (16) are arranged between the sliding blocks (15) and the vertical grooves (14), a wiping plate (17) is hinged to the outer portion of each sliding block (15), and meanwhile the length of each wiping plate (17) is equal to that of each extending plate (13).