Classroom teaching auxiliary device

Abstract

The utility model relates to the technical field, and discloses a classroom teaching auxiliary device which comprises a blackboard, a cleaning assembly is arranged at the front end of the blackboard, supporting legs are fixedly installed on the two sides of the back end of the blackboard, the cleaning assembly comprises an outer shell, a cleaning brush is embedded in the outer shell, clamping shells are installed at the two ends of the cleaning brush, and the clamping shells are fixedly installed on the blackboard. The clamping shells are embedded into the two ends of the interior of the outer shell, a door cover is arranged on one side of the outer shell, and buckle assemblies are arranged on the two sides of the surface of the outer shell. According to the utility model, through the arrangement of the buckle assembly, the clamping block can be manually pressed, the clamping block is retracted into the sliding groove of the rectangular block through the reset spring, the groove corresponds to the guide rail, so that the clamping block can be driven to slide in the rectangular block, and one side of the clamping shell is driven to abut against the edge of the outer shell through the reset spring; and then the cleaning brush can be conveniently taken out by opening the door cover, so that the effect of conveniently replacing the structure is achieved, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a classroom teaching auxiliary device. Background Art

[0002] Ideological and political education is a compulsory course for students. It is a science that guides people to form correct thoughts and behaviors. It takes the laws of the formation and change of people's thoughts and behaviors, as well as the laws of implementing ideological and political education as its research objects. Among them, the transformation of people's thoughts, views and positions, as well as the formation of outlook on life and world outlook are the focus of research. No matter how society develops, ideological and political education can help people establish different values ​​and outlooks on life at different periods and stages of life.

[0003] A Chinese document with a publication number of CN217792093U is retrieved and discloses a classroom teaching auxiliary device, including a device body, a fixed platform, and a movable plate. The left end of the device body is movably connected to the fixed platform, the surface of the device body is movably connected to the movable plate, the front of the fixed platform is fixedly connected to a control switch, the interior of the fixed platform is fixedly connected to a fixed rod, the right end of the fixed rod is movably connected to a second gear, the bottom of the second gear is movably connected to a first gear, and the bottom of the first gear is fixedly connected to a motor, the motor can drive the device body to be raised and lowered, thereby improving the adjustability of the device body. By setting the fixed plate, When the device needs to be fixed, the device is placed on the wall so that the fixing plate is close to the wall, and then the fixing bolts are driven into the wall. The four fixing bolts are repeatedly operated so that the device is fixed at four corners and firmly fixed to the wall. The fixing plate improves the fixation and functionality of the device body. The device does not have the problem of dust absorption during blackboard wiping, which causes substitute teachers to inhale a large amount of dust and affect their health. At the same time, it does not have a quick replacement structure for the blackboard eraser, which causes the blackboard eraser effect to decrease after long-term use, affecting the wiping efficiency. In view of the above problems, a classroom teaching auxiliary device is provided herein. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a classroom teaching auxiliary device, aiming to improve the problems that the prior art does not have a dust absorption function and cannot quickly replace the blackboard eraser.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a classroom teaching auxiliary device, comprising a blackboard, a cleaning component is arranged at the front end of the blackboard, and supporting legs are fixedly installed on both sides of the back end of the blackboard;

[0006] The cleaning assembly includes an outer shell, a cleaning brush is embedded in the interior of the outer shell, and the two ends of the cleaning brush are equipped with card shells, which are embedded in the two ends of the inner shell of the outer shell. A door cover is opened on one side of the outer shell, and buckle assemblies are arranged on both sides of the surface of the outer shell.

[0007] As a further description of the above technical solution:

[0008] The buckle assembly includes a card block and a rectangular block. The rectangular block is arranged on the surface of the outer shell. One end of the card block passes through the rectangular block and is connected to a return spring. A sliding groove is provided inside the rectangular block. One end of the return spring passes through the groove and is fixedly connected to the card shell. A guide rail is provided at the bottom end of the surface of the rectangular block. A groove is provided at the bottom end of the card block. The card block is slidably connected to the guide rail through the groove.

[0009] As a further description of the above technical solution:

[0010] Suction fans are installed at both ends of the inner part of the outer shell, filter cotton is arranged at one end of the suction fan, and dust storage bins are arranged between the filter cottons.

[0011] As a further description of the above technical solution:

[0012] A plurality of air inlet holes are provided on one side surface of the dust storage bin, and a plurality of air outlet holes are provided on the other side surface, and dust isolation nets are provided on the surfaces of the air outlet holes.

[0013] As a further description of the above technical solution:

[0014] Racks are fixedly installed at the edges of both ends of the blackboard, and a sliding block is installed on the top of the outer shell which penetrates through the interior of the blackboard.

[0015] As a further description of the above technical solution:

[0016] A rotating shaft is provided through the surface of the sliding block, a toothed disc is sleeved on the outer surface of the rotating shaft, and the toothed disc is meshed and transmission-connected with the rack.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the utility model, by setting a cleaning component through the coordination of a rack, a slider, a rotating shaft and a gear disc, the outer shell can be manually driven to move smoothly horizontally on the surface of the blackboard, reducing the movement blockage problem caused by friction. At the same time, the suction fan can be started to pass the dust generated by the cleaning brush wiping the blackboard through the filter cotton into the interior of the dust storage bin through the air inlet hole, thereby ensuring the teaching quality of the teacher and the teacher's personal health.

[0019] 2. In the utility model, by setting a snap assembly, the card block can be manually pressed, and the card block is retracted into the slide groove of the rectangular block by a reset spring. By making the groove correspond to the guide rail, the card block can be driven to slide inside the rectangular block, and one side of the card shell is driven by the reset spring to abut against the edge of the outer shell, so that the cleaning brush is retracted into the interior of the outer shell. Then, the door cover can be opened to conveniently take out the cleaning brush, thereby completing the effect of convenient structural replacement and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a classroom teaching auxiliary device proposed by the utility model;

[0021] Figure 2 A schematic diagram of the meshing of a rack and a toothed disc of a classroom teaching auxiliary device proposed by the utility model;

[0022] Figure 3 This is a bottom view of a cleaning component of a classroom teaching auxiliary device proposed by the utility model;

[0023] Figure 4 This is a cross-sectional view of a cleaning component of a classroom teaching auxiliary device proposed by the utility model;

[0024] Figure 5 This is an enlarged schematic diagram of the structure of location A of a classroom teaching auxiliary device proposed by the utility model;

[0025] Figure 6 This is an enlarged schematic diagram of the structure at position B of a classroom teaching auxiliary device proposed by the utility model;

[0026] Legend:

[0027] 1. Blackboard; 2. Cleaning assembly; 201. Outer shell; 202. Cleaning brush; 203. Card shell; 204. Door cover; 3. Support leg 4. Buckle assembly; 401. Card block; 402. Rectangular block; 403. Reset spring; 404. Guide rail; 405. Groove; 5. Suction fan; 6. Filter cotton; 7. Dust bin; 8. Air inlet; 9. Air outlet; 10. Rack; 11. Slider; 12. Rotating shaft; 13. Toothed disc. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-6The utility model provides an embodiment: a classroom teaching auxiliary device, comprising a blackboard 1, a cleaning component 2 is arranged at the front end of the blackboard 1, and supporting legs 3 are fixedly installed on both sides of the back end of the blackboard 1;

[0030] The cleaning component 2 includes an outer shell 201, and a cleaning brush 202 is embedded in the interior of the outer shell 201. The cleaning brush 202 and the two ends of the cleaning brush 202 are installed with a card shell 203, and the card shell 203 is embedded in the inner two ends of the outer shell 201. A door cover 204 is opened on one side of the outer shell 201, and buckle components 4 are arranged on both sides of the surface of the outer shell 201. The outer shell 201 is manually driven to move horizontally at the blackboard 1, and the chalk marks on the blackboard are quickly wiped off by the cleaning brush 202. The length of the cleaning brush 202 is consistent with the writing range of the blackboard 1. It can be fully wiped during the moving process of the cleaning brush, and the cleaning brush 202 can be quickly taken out and replaced by opening the door cover 204.

[0031] The buckle assembly 4 includes a card block 401 and a rectangular block 402. The rectangular block 402 is arranged on the surface of the outer shell 201. The card block 401 passes through one end of the rectangular block 402 and is connected to a return spring 403. A sliding groove is provided inside the rectangular block 402. One end of the return spring 403 passes through the groove and is fixedly connected to the card shell 203. A guide rail 404 is provided at the bottom end of the surface of the rectangular block 402. A groove 405 is provided at the bottom end of the card block 401. The card block 401 is slidably connected to the guide rail 404 through the groove 405. The card block 401 is manually pressed to make the groove 405 correspond to the guide rail 404, and then the card block 401 can be driven to move laterally inside the rectangular block 402. When the card block 401 moves, it drives the outer shell 201 to move through the return spring 403.

[0032] Suction fans 5 are installed at both ends of the outer shell 201, and filter cotton 6 is arranged at one end of the suction fan 5. Dust storage bins 7 are arranged between the filter cotton 6. By starting the suction fan 5, the dust cleaned by the cleaning brush 202 can be sucked into the dust storage bin 7, and the dust filtering work is completed through the filter cotton 6.

[0033] A plurality of air inlet holes 8 are provided on one side surface of the dust bin 7, and a plurality of air outlet holes 9 are provided on the other side surface, and dust-shielding nets are provided on the surfaces of the air outlet holes 9. Dust can be sucked into the interior of the dust bin 7 through the air inlet holes 8, and the gas output work is completed through the air outlet holes 9. The interlayer net can prevent the dust generated after the gas output from affecting the substitute teacher.

[0034] Racks 10 are fixedly installed at the edges of both ends of the blackboard 1, and a slider 11 is installed on the top of the outer shell 201 that penetrates the interior of the blackboard 1. The slider 11 can drive the outer shell 201 to move stably at the blackboard 1.

[0035] A rotating shaft 12 is provided on the surface of the slider 11, and a toothed disc 13 is sleeved on the outer surface of the rotating shaft 12. The toothed disc 13 is meshed and connected with the rack 10 for transmission. The rotating shaft 12 smoothly drives the toothed disc 13 to rotate. When the toothed disc 13 rotates, it meshes and transmits with the rack 10, driving the outer shell 201 to move smoothly laterally.

[0036] Working principle: When in use, the substitute teacher can use chalk on the blackboard 1 to conduct classroom teaching and complete the auxiliary work of classroom teaching. When the entire blackboard 1 needs to be wiped, press the power supply component on the surface of the outer shell 201, and the suction fan 5 can be started by electrically connecting it. Then, the outer shell 201 is manually controlled to move horizontally at the blackboard 1. The outer shell 201 can drive the toothed disc 13 and the rack 10 to engage and transmit through the slider 11 and the rotating shaft 12. Through the meshing transmission design at both ends, the cleaning brush 202 can be smoothly driven to quickly wipe the chalk marks to prevent friction resistance during movement, thereby improving the comfort and smoothness of use. The dust generated in the process of cleaning the chalk marks is sucked into the dust storage bin 7 through the air inlet, and then the gas is discharged through the air outlet 9. The dust filter 202 is manually removed from the door cover 204 for quick replacement. During installation, the card block 402 is moved to the edge of the rectangular block 402 in the same manner, and the groove 405 is offset from the guide rail 404 by the rebound force of the reset spring 403 to complete the clamping work.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A classroom teaching auxiliary device, comprising a blackboard (1), characterized in that: A cleaning assembly (2) is provided at the front end of the blackboard (1), and supporting legs (3) are fixedly installed on both sides of the back end of the blackboard (1); The cleaning component (2) comprises an outer shell (201), a cleaning brush (202) is embedded in the interior of the outer shell (201), and the cleaning brush (202) and the cleaning brush (202) are provided with a card shell (203) at both ends, and the card shell (203) is embedded in the interior of the outer shell (201). A door cover (204) is provided on one side of the outer shell (201), and buckle components (4) are provided on both sides of the surface of the outer shell (201), and the buckle component (4) comprises a card block (401) and a rectangular block (402), and the rectangular block (402) is arranged on the surface of the outer shell (201), the block (401) passes through one end of the rectangular block (402) and is connected to a return spring (403), a sliding groove is provided inside the rectangular block (402), one end of the return spring (403) passes through the groove and is fixedly connected to the block shell (203), a guide rail (404) is provided at the bottom end of the surface of the rectangular block (402), a groove (405) is provided at the bottom end of the block (401), and the block (401) is slidably connected to the guide rail (404) through the groove (405).

2. A classroom teaching auxiliary device according to claim 1, characterized in that: Suction fans (5) are installed at both ends of the inner part of the outer shell (201), filter cotton (6) is arranged at one end of the suction fan (5), and dust storage bins (7) are arranged between the filter cottons (6).

3. A classroom teaching auxiliary device according to claim 1, characterized in that: A plurality of air inlet holes (8) are provided on one side surface of the dust storage bin (7), and a plurality of air outlet holes (9) are provided on the other side surface, and dust-proof nets are provided on the surfaces of the air outlet holes (9).

4. A classroom teaching auxiliary device according to claim 3, characterized in that: Racks (10) are fixedly mounted at the edges of both ends of the blackboard (1), and a slider (11) is mounted on the top of the outer shell (201) and penetrates the interior of the blackboard (1).

5. A classroom teaching auxiliary device according to claim 1, characterized in that: A rotating shaft (12) is provided through the surface of the sliding block (11), a toothed disc (13) is sleeved on the outer surface of the rotating shaft (12), and the toothed disc (13) is meshed and transmission-connected with the rack (10).

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