CN115723466A - A multifunctional teaching aid - Google Patents

Abstract

The invention belongs to the technical field of teaching aids, and discloses a multifunctional teaching aid, comprising a base, a storage frame is fixedly installed on the top surface of the base, a lifting mechanism is fixedly installed on the back of the top surface of the storage frame, the storage frame The top of the blackboard is provided with a blackboard body, and the blackboard body is fixedly installed with the lifting mechanism. The present invention uses the friction between the falling blackboard body and the rotating cleaning mechanism to complete the automatic and quick erasing of blackboard writing. At the same time, the chalk dust raised during the erasing process is sucked into the fixed frame and filtered and collected in the filter frame. The No. 2 control valve and the upwardly arranged suction pipe complete the suction and collection of chalk dust in the environment during the normal writing process, improve the convenience and cleaning of blackboard writing on the blackboard body, and at the same time complete the suction collection of chalk dust and reduce the cleaning difficulty of the teaching blackboard , improve the air quality during teaching and use, greatly improve the health and safety of users, and the use effect is good.

Description

A multifunctional teaching aid

technical field

The invention belongs to the technical field of teaching aids, in particular to a multifunctional teaching aid.

Background technique

Teaching aids refer to the general term for all kinds of utensils used by students to intuitively and visually understand the teaching content and the utensils used by teachers in teaching, referred to as teaching aids. Teaching aids are objects for the purpose of spreading technology and educating people. Indispensable equipment in science and technology activities for teenagers. The teaching aids used in science and technology activities have physical teaching aids and replica teaching aids. At present, when teaching and using, blackboards are generally used for text demonstrations, and multi-functional digital teaching is realized with display screens.

The multifunctional teaching aids in the prior art, in the process of use, because the multifunctional blackboard used produces a large amount of chalk dust when writing with chalk, it is easy for educators to inhale a large amount of chalk dust when using it, and the actual blackboard is written to a certain extent. After measuring, it is necessary to erase the writing on the blackboard. In fact, due to the large area of the blackboard, the writing on the blackboard is widely distributed. When wiping the writing on the blackboard, it is usually necessary to manually lift the arm to wipe. The manual wiping time is long, the efficiency is low, and the amount of chalk dust flying Large, further affecting human health, for the current multi-kinetic teaching blackboard, the actual use of health and safety is relatively poor, and cleaning trouble, poor use effect.

In addition, the multi-functional teaching aids in the prior art usually need to adjust the placement position during use, and need to be moved and carried when they are purchased and arranged. However, the current multi-functional teaching blackboard has the functions of lifting and digital screen display. It actually has a certain weight and volume. When transporting and installing, the method of bottom rollers is used to improve the convenience of transportation. When stable placement is required, the method of locking the rollers is usually used. However, the contact area between the rollers and the ground is small, and the actual frictional resistance Smaller, under the action of external force, it is easy to make the placed multifunctional teaching blackboard slide and deviate. In fact, it can not guarantee the stability of placement while being convenient to move, and the use effect is not good.

Contents of the invention

The purpose of the present invention is to provide a multi-functional teaching aid to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a multifunctional teaching aid, including a base, a storage frame is fixedly installed on the top surface of the base, a lifting mechanism is fixedly installed on the back of the top surface of the storage frame, the storage The top of the frame is provided with a blackboard body, the blackboard body and the lifting mechanism are fixedly installed, the side of the storage frame is fixedly installed with a motor frame, the inside of the motor frame is movably equipped with a motor, and the inside of the storage frame is provided with a cleaning mechanism, the cleaning mechanism is fixedly connected with the output shaft of the motor, air holes are opened on the front of the storage frame, a fixed frame is fixedly installed on the front of the storage frame, and a sealing frame is movably installed on the front of the fixed frame. A filter frame is fixedly sleeved inside the sealing frame, an air pump is fixedly installed on the top surface of the base, and a No. 1 control valve is fixedly connected to the side of the air pump. The side of the fixed frame is fixedly connected with the No. 2 control valve, the side of the No. 2 control valve is fixedly connected with the suction pipe, and the top surface of the fixed frame is fixedly installed with a placement frame.

Preferably, the lifting mechanism includes a horizontal plate, a lifting rod and a connecting block, the horizontal plate is fixedly installed on the back of the storage frame, the lifting rod is fixedly installed on the top surface of the horizontal plate, and the connecting block is fixedly installed On the back of the blackboard body, the connecting block is fixedly connected with the lifting rod.

Preferably, a side slot is provided on the back of the storage frame, the cross-sectional size of the side slot is larger than that of the connecting block, and a digital display screen is provided on the front of the blackboard body.

Preferably, the cleaning mechanism includes a rotating shaft, a mounting sleeve and a cleaning sleeve, the rotating shaft is movably connected to the storage frame, one end of the rotating shaft is fixedly connected to the output shaft of the motor, and the mounting sleeve is fixedly sleeved on the outer surface of the rotating shaft On the surface, the cleaning sleeve is fixedly sleeved on the outer surface of the installation sleeve.

Preferably, the side of the fixed frame is provided with a through hole, the front of the filter frame is provided with a filter hole, the through hole is located inside the filter frame, and the outer end of the through hole is connected with the curved pipe.

Preferably, an installation opening is opened on the front of the fixing frame, the inner surface of the installation opening is movably socketed with the filter frame, a magnetic plate is fixedly installed on the side of the sealing frame, and the magnetic plate is adsorbed and fixed to the fixing frame.

Preferably, an airbag is fixedly installed on the inner surface of the storage frame, and a trachea is fixedly sleeved on the side of the storage frame, and the two ends of the trachea are fixedly communicated with the airbag and the No. 1 control valve respectively.

Preferably, the top surface and the bottom surface of the base are provided with threaded holes and bottom holes respectively, the top surface of the inner surface of the bottom hole is fixedly connected with a spring, the bottom surface of the spring is fixedly installed with casters, and the threaded hole and the bottom The holes are connected, and the top thread of the threaded hole is sleeved with an adjusting bolt.

The beneficial effects of the present invention are as follows:

1. The present invention uses the suction effect of the air pump and cooperates with the curved pipe to connect the air pump with the fixed frame. When it is necessary to clear the blackboard writing on the blackboard body, the blackboard body that falls down rubs against the rotating cleaning mechanism to complete the automatic and quick cleaning of the blackboard writing. At the same time, the chalk dust raised during the erasing process is sucked into the fixed frame and filtered and collected in the filter frame, and cooperates with the No. 2 control valve on the side and the suction pipe arranged upwards to complete the environment during the normal writing process. The inhalation and collection of chalk dust improves the convenience and cleaning of blackboard writing on the blackboard body, and at the same time completes the inhalation and collection of chalk dust, which reduces the difficulty of cleaning the teaching blackboard, improves the air quality during teaching and use, and greatly improves the health and safety of users. The effect is good.

2. The present invention adds an air bag of elastic material to the storage frame by utilizing the suction and exhaust functions of the air pump. When the blackboard body is stored or moved when not in use, the blackboard body is moved into the storage frame, and With the exhaust of the air pump, the exhausted gas is passed into the air bag to realize the inflation and expansion of the air bag, so that the expanded air bag is used to compress the blackboard body, so that the blackboard body is elastically clamped and protected to avoid movement or collision so that the front of the blackboard body The protection effect of the blackboard body is greatly improved.

3. In the present invention, the adjusting bolt is threaded on the top surface of the base, and the bottom hole is opened on the bottom surface of the base, and the spring-connected caster is located in the bottom hole. When it needs to be moved, the adjusting bolt is used to push out the caster, so that the caster can replace the The base is in contact with the ground, so as to improve the convenience of movement. Under the requirement of stable placement, the casters are stored inside the base by turning the adjusting bolt and cooperating with the elastic reset effect of the spring, so that the base replaces the casters in contact with the bottom surface. By increasing the contact Increase the actual frictional resistance, thereby improving the actual placement stability of the teaching blackboard, and avoiding the deviation under external force.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the back schematic diagram of the present invention;

Fig. 3 is a schematic cross-sectional view of the present invention;

Fig. 4 is the explosion schematic diagram of fixed frame of the present invention;

Fig. 5 is the schematic diagram of cleaning mechanism of the present invention;

Fig. 6 is the schematic diagram of base of the present invention;

Fig. 7 is an exploded schematic view of the base of the present invention.

In the figure: 1. Base; 2. Storage frame; 3. Lifting mechanism; 301. Horizontal plate; 302. Lifting rod; 303. Connection block; 4. Blackboard body; 5. Digital display screen; 6. Motor frame; 7. Motor; 8, cleaning mechanism; 81, rotating shaft; 82, installation sleeve; 83, cleaning sleeve; 9, air hole; 10, fixed frame; 11, sealing frame; 12, filter frame; 13, filter hole; 14, through hole; 15. Installation port; 16. Magnetic plate; 17. Air pump; 18. No. 1 control valve; 19. Curved pipe; 20. No. 2 control valve; 21. Suction pipe; 22. Placement frame; 23. Side slot; 24. Air bag; 25, trachea; 26, threaded hole; 27, adjusting bolt; 28, bottom hole; 29, spring; 30, caster.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 7, the embodiment of the present invention provides a multifunctional teaching aid, including a base 1, a storage frame 2 is fixedly installed on the top surface of the base 1, and a lifting mechanism 3 is fixedly installed on the back of the top surface of the storage frame 2 , the top of the storage frame 2 is provided with a blackboard body 4, the blackboard body 4 is fixedly installed with the lifting mechanism 3, a motor frame 6 is fixedly mounted on the side of the storage frame 2, and a motor 7 is movably installed inside the motor frame 6, and the inside of the storage frame 2 A cleaning mechanism 8 is provided, and the cleaning mechanism 8 is fixedly connected with the output shaft of the motor 7. The front of the storage frame 2 is provided with an air hole 9, the front of the storage frame 2 is fixedly installed with a fixed frame 10, and the front of the fixed frame 10 is movable with a sealing frame. 11. A filter frame 12 is fixedly sleeved inside the sealing frame 11, and an air pump 17 is fixedly installed on the top surface of the base 1. The side of the air pump 17 is fixedly connected to a No. 1 control valve 18, and the No. 1 control valve 18 is fixed to the fixed frame 10. The curved pipe 19 is connected, the side of the fixed frame 10 is fixedly connected with the No. 2 control valve 20, the side of the No. 2 control valve 20 is fixedly connected with the suction pipe 21, and the top surface of the fixed frame 10 is fixedly installed with a placement frame 22. 22 can place some teaching tools.

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the lifting mechanism 3 includes a horizontal plate 301, a lifting rod 302 and a connecting block 303, the horizontal plate 301 is fixedly installed on the back side of the storage frame 2, and the lifting rod 302 Fixedly installed on the top surface of the horizontal plate 301, the connecting block 303 is fixedly installed on the back of the blackboard body 4, the connecting block 303 is fixedly connected with the lifting rod 302, the back of the storage frame 2 is provided with a side groove 23, and the cross section of the side groove 23 The size is greater than the cross-sectional size of the connecting block 303. The front of the blackboard body 4 is provided with a digital display 5. The cleaning mechanism 8 includes a rotating shaft 81, an installation sleeve 82 and a cleaning sleeve 83. The rotating shaft 81 is movably socketed with the storage frame 2. One end of the rotating shaft 81 It is fixedly connected with the output shaft of the motor 7 , the installation sleeve 82 is fixedly sleeved on the outer surface of the rotating shaft 81 , and the cleaning sleeve 83 is fixedly sleeved on the outer surface of the installation sleeve 82 .

During use, by using the lifting mechanism 3 to realize the up and down movement of the blackboard body 4, on the one hand, it can be adjusted to a suitable height, and on the other hand, it can be conveniently lowered to the storage frame 2 to clean the writing on the blackboard and can realize the safe storage of the blackboard body 4; and The cleaning cover 83 rotated by the motor 7 is made of cotton material, which improves the effect of cleaning the writing on the blackboard, while the installation cover 82 is made of elastic material, which facilitates the contact between the cleaning cover 83 and the blackboard body 4 when the blackboard body 4 is moved down to erase the writing on the blackboard. effect, to ensure the cleaning effect,

As shown in Fig. 1, Fig. 3 and Fig. 4, the side of fixed frame 10 is provided with through hole 14, and the front of filter frame 12 is provided with filter hole 13, and through hole 14 is positioned at the inner side of filter frame 12, and the outer end of through hole 14 Connected with the curved pipe 19, the front of the fixed frame 10 is provided with an installation opening 15, the inner surface of the installation opening 15 is movably socketed with the filter frame 12, the side of the sealing frame 11 is fixedly installed with a magnetic plate 16, and the magnetic plate 16 is connected to the fixed frame 10 Adsorption immobilization.

By using the filter frame 12 to collect and filter chalk dust during the suction process, and cooperate with the sealing frame 11 fixed by the magnetic plate 16 and the fixed frame 10 to make the sealing frame 11 easy to open, realize the convenient disassembly of the filter frame 12, and facilitate cleaning Collection of chalk dust.

First embodiment: when it is necessary to completely erase the front panel of the blackboard body 4, start the motor 7, and make the motor 7 drive the rotating shaft 81 in the cleaning mechanism 8 to rotate, so that the cleaning cover 83 in the cleaning mechanism 8 rotates, and at the same time Start the air pump 17 and the lifting mechanism 3, keep the No. 1 control valve 18 so that the curved pipe 19 is opened, so that the air pump 17 sucks the gas in the fixed frame 10 through the curved pipe 19, and with the lifting mechanism 3, the blackboard body 4 is pushed down from the top Inserted into the storage frame 2, so that the front of the blackboard body 4 is relatively rubbed against the rotating cleaning cover 83, so that the front of the blackboard body 4 is cleaned and wiped, and the flying chalk dust is sucked into the fixed frame 10 through the air hole 9, and the dust Filtration is collected on the outer surface of the filter frame 12 to complete the removal of the blackboard body 4 front panel writing, and after erasing, use the lifting mechanism 3 to raise the blackboard body 4 again; and during the writing operation, keep the No. 2 control valve 20 open, and then The air pump 17 sucks the air in the fixed frame 10, and the chalk dust around the blackboard body is sucked into the suction pipe 21, and sucked into the fixed frame 10, and filtered and collected on the outer surface of the filter frame 12.

First, by utilizing the suction effect of the air pump 17 and connecting the air pump 17 with the fixed frame 10 in conjunction with the curved pipe 19, when it is necessary to remove blackboard writing on the blackboard body 4, use the falling blackboard body 4 to rub against the rotating cleaning mechanism 8, Complete the automatic and quick erasing of blackboard writing, and at the same time, the chalk dust raised during the erasing process is sucked into the fixed frame 10 and filtered and collected in the filter frame 12, and cooperates with the No. 2 control valve 20 on the side and the upwardly arranged suction pipe 21 , complete the inhalation and collection of chalk dust in the environment during the normal writing process, improve the convenience and cleaning of blackboard writing on the blackboard body 4, and complete the inhalation and collection of chalk dust, reduce the cleaning difficulty of the teaching blackboard, and improve the air quality in the teaching process. The health and safety of the user is greatly improved, and the use effect is good.

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 6 and Fig. 7, the inner surface of the storage frame 2 is fixedly equipped with an air bag 24, and the side of the storage frame 2 is fixedly sleeved with a trachea 25, and the two ends of the trachea 25 are connected to the air bag respectively. 24 and the No. 1 control valve 18 are fixedly connected, the top surface and the bottom surface of the base 1 are provided with threaded holes 26 and bottom holes 28 respectively, the top surface of the inner surface of the bottom hole 28 is fixedly connected with a spring 29, and the bottom surface of the spring 29 is fixedly equipped with casters 30 , the threaded hole 26 communicates with the bottom hole 28 , and the top of the threaded hole 26 is threaded with an adjusting bolt 27 .

Second embodiment: when the teaching blackboard needs to be transported, the lifting mechanism 3 is activated, and the blackboard body 4 is lowered into the storage frame 2, and then the No. 1 control valve 18 is opened and the air pump 17 is started, so that the air pump 17 sucks the ambient air And transport it to the air bag 24 through the air pipe 25, so that the air bag 24 inhales and collides with the front of the blackboard body 4, then closes the No. 1 control valve 18 and closes the air pump 17, so that the air pressure in the air bag 24 is stable, and lifts the base 1, And rotate the adjustment bolt 27 downwards, so that the adjustment bolt 27 pushes the caster 30 downwards to move, the spring 29 stretches, and the caster 30 is moved out from the bottom hole 28 of the bottom surface of the base 1, and then the teaching blackboard is promoted to move and carry; After reaching the target position, the reset adjustment bolt 27 is turned up, so that the spring 29 is reset, and then the caster 30 is driven to move to the inside of the bottom hole 28 to complete stable placement.

First, by utilizing the suction and exhaust functions of the air pump 17, an airbag 24 of elastic material is added in the storage frame 2, and when the blackboard body 4 is stored or moved when not in use, the blackboard body 4 is moved to the storage frame 2, and in conjunction with the exhaust of the air pump 17, the exhausted gas is passed into the air bag 24 to realize the inflation and expansion of the air bag 24, thereby using the expanded air bag 24 to compress the blackboard body 4, so that the blackboard body 4 is elastically clamped Protection, to avoid moving or colliding so that the front of the blackboard body 4 is damaged, which greatly improves the protection effect of the blackboard body 4 .

In addition, by threading the adjustment bolt 27 on the top surface of the base 1, and opening a bottom hole 28 on the bottom surface of the base 1, and making the caster 30 connected by the spring 29 be located in the bottom hole 28, when it is necessary to move, use the adjustment bolt 27 Roll out the caster 30, so that the caster 30 replaces the base 1 and contacts the ground, thereby improving the convenience of movement, and under the requirement of stable placement, the caster 30 is accommodated on the base 1 by turning the adjusting bolt 27 and cooperating with the elastic reset effect of the spring 29. Inside, the base 1 replaces the casters 30 to contact the bottom surface, and by increasing the contact area, the actual frictional resistance is improved, thereby improving the actual placement stability of the teaching blackboard, and avoiding the deviation under external force.

Working principle and usage process:

When it is necessary to completely erase the front panel of the blackboard body 4, start the motor 7, and make the motor 7 drive the rotating shaft 81 in the cleaning mechanism 8 to rotate, so that the cleaning cover 83 in the cleaning mechanism 8 rotates, and simultaneously start the air pump 17 and lift Mechanism 3, keeping the No. 1 control valve 18 so that the curved pipe 19 is opened, so that the air pump 17 sucks the gas in the fixed frame 10 through the curved pipe 19, and with the lifting mechanism 3, the blackboard body 4 is inserted into the storage frame from the top downward 2, the front of the blackboard body 4 is rubbed against the rotating cleaning cover 83, so that the front of the blackboard body 4 is cleaned and erased, and the flying chalk dust is sucked into the fixed frame 10 through the air hole 9, and the dust is filtered and collected in the filter frame 12, complete the removal of blackboard body 4 front panel writing, and use lifting mechanism 3 to raise blackboard body 4 again after erasing; The air in the fixed frame 10, the chalk dust located around the blackboard body is sucked into the suction pipe 21, and sucked into the fixed frame 10, and filtered and collected on the outer side of the filter frame 12; when the teaching blackboard needs to be transported, the lifting The mechanism 3 works, and lowers the blackboard body 4 into the storage frame 2, then opens the No. 1 control valve 18 and starts the air pump 17, so that the air pump 17 sucks the ambient air and delivers it to the air bag 24 through the air tube 25, so that the air bag 24 sucks The air collides and presses the front of the blackboard body 4, then closes the No. 1 control valve 18 and the air pump 17, so that the air pressure in the air bag 24 is stable, lifts the base 1, and rotates the adjusting bolt 27 downward, so that the adjusting bolt 27 is downward Push the caster 30 to move, the spring 29 is stretched, and the caster 30 is moved out from the bottom hole 28 of the bottom surface of the base 1, and then the teaching blackboard is pushed to move and carry, and when it is moved to the target position, the screw 27 is turned up to reset, so that The spring 29 resets, and then drives the caster 30 to move to the inside of the bottom hole 28 to complete stable placement.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a multifunctional teaching aid, includes base (1), its characterized in that: the improved blackboard eraser is characterized in that a storage frame (2) is fixedly mounted on the top surface of the base (1), an elevating mechanism (3) is fixedly mounted on the back surface of the top surface of the storage frame (2), a blackboard body (4) is arranged at the top of the storage frame (2), the blackboard body (4) is fixedly mounted with the elevating mechanism (3), a motor frame (6) is fixedly mounted on the side surface of the storage frame (2), a motor (7) is movably mounted inside the motor frame (6), a cleaning mechanism (8) is arranged inside the storage frame (2), an output shaft of the cleaning mechanism (8) is fixedly connected with the motor (7), an air hole (9) is formed in the front surface of the storage frame (2), a fixed frame (10) is fixedly mounted on the front surface of the storage frame (2), a sealing frame (11) is movably mounted on the front surface of the fixed frame (10), a filtering frame (12) is fixedly connected inside the sealing frame (11), an air pump (17) is fixedly mounted on the top surface of the base (1), a first control valve (18) is fixedly communicated with a first control valve (18), a second control valve (20) is communicated with a second control valve (20), the top surface of the fixed frame (10) is fixedly provided with a placing frame (22).

2. A multi-functional teaching aid according to claim 1, characterized in that: elevating system (3) are including diaphragm (301), lifter (302) and connecting block (303), diaphragm (301) fixed mounting is on the back of accomodating frame (2), lifter (302) fixed mounting is on the top surface of diaphragm (301), connecting block (303) fixed mounting is on the back of blackboard body (4), connecting block (303) and lifter (302) fixed connection.

3. A multi-functional teaching aid according to claim 1, characterized in that: side groove (23) have been seted up to the back of accomodating frame (2), the cross sectional dimension of side groove (23) is greater than the cross sectional dimension of connecting block (303), the front of blackboard body (4) is equipped with digital display screen (5).

4. A multi-functional teaching aid according to claim 1, characterized in that: clean mechanism (8) are including pivot (81), installation cover (82) and clean cover (83), pivot (81) and accomodate frame (2) activity and cup joint, the one end of pivot (81) and the output shaft fixed connection of motor (7), the fixed cover of installation cover (82) is fixed to be connected on the surface of pivot (81) clean cover (83) fixed cover is fixed to be connected on the surface of installation cover (82).

5. A multi-functional teaching aid according to claim 1, characterized in that: through-hole (14) have been seted up to the side of fixed frame (10), filter hole (13) have been seted up in the front of filtering frame (12), through-hole (14) are located the inboard of frame (12), the outer end and the bent pipe (19) of through-hole (14) are linked together.

6. A multi-functional teaching aid according to claim 1, characterized in that: installing port (15) have been seted up in the front of fixed frame (10), the internal surface and the filter frame (12) activity of installing port (15) are cup jointed, the side fixed mounting of sealed frame (11) has magnetic sheet (16), magnetic sheet (16) are fixed with fixed frame (10) absorption.

7. A multi-functional teaching aid according to claim 1, characterized in that: the inner surface fixed mounting who accomodates frame (2) has gasbag (24), accomodate the fixed trachea (25) that has cup jointed in side of frame (2), the both ends of trachea (25) respectively with gasbag (24) and a control valve (18) fixed intercommunication.

8. A multi-functional teaching aid according to claim 1, characterized in that: the top surface and the bottom surface of base (1) have seted up screw hole (26) and bottom hole (28) respectively, the top surface fixedly connected with spring (29) of bottom hole (28) internal surface, the bottom surface fixed mounting of spring (29) has truckle (30), screw hole (26) and bottom hole (28) are linked together, adjusting bolt (27) have been cup jointed to the top screw thread of screw hole (26).

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