CN111845168A

CN111845168A - Dust self-suction blackboard for teaching

Info

Publication number: CN111845168A
Application number: CN202010665838.8A
Authority: CN
Inventors: 王威
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-12
Filing date: 2020-07-12
Publication date: 2020-10-30

Abstract

The invention relates to the technical field of teaching instruments and discloses a dust self-suction type blackboard for teaching, which comprises an outer blackboard frame, wherein the front surface of the outer blackboard frame is connected with two side plate frames in a sliding manner; the sponge eraser is extruded outwards under the action of the pressure spring, so that the sponge eraser can synchronously erase the whole surface of the blackboard body, when the blackboard eraser is used, only the side plate frame needs to be pushed inwards, the side plate frame drives the blackboard body to move into the blackboard middle frame body, the sponge eraser in the blackboard middle frame body erases characters, time and labor are saved, the sponge eraser is consistent with the area of the blackboard body, the front surface of the blackboard body can be synchronously erased without dead angles, and meanwhile, the trouble of searching for the blackboard eraser is avoided.

Description

Dust self-suction blackboard for teaching

Technical Field

The invention relates to the technical field of teaching instruments, in particular to a dust self-suction type blackboard for teaching.

Background

Among teaching instruments, the blackboard is the most common instrument, and the blackboard is a plane that can be repeatedly written by chalk, and the face is hard, and is mainly used for teaching. The blackboard is generally made of wood board or ground glass, and can be written on by using specific writing materials such as chalk. Most blackboards are black, greenish black, white or beige.

After the writing of the blackboard is completed, the blackboard eraser is needed to be used for clearing the writing, in the prior art, the blackboard eraser is generally adopted for clearing the writing, however, the whole blackboard cannot be erased synchronously by the blackboard eraser, the erasing of a higher position is inconvenient, and meanwhile, when the writing is erased by the existing blackboard, a large amount of dust can be generated, and the body health is affected.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a dust self-suction type blackboard for teaching, which has the advantages of synchronously erasing the whole blackboard and having an air inducing device, absorbing dust into a collecting bin while erasing the handwriting, avoiding flying of the dust, solving the problems that the whole blackboard cannot be synchronously erased, the blackboard is inconvenient to erase at a higher position, and simultaneously, a large amount of dust can be generated when the existing blackboard erases the handwriting, so that the health of a human body is influenced.

(II) technical scheme

In order to realize the purposes of synchronously erasing the whole blackboard and simultaneously having an induced draft device, absorbing dust into a collecting bin while erasing the handwriting and avoiding flying of the dust, the invention provides the following technical scheme: a dust self-suction blackboard for teaching comprises an outer blackboard frame, wherein the front surface of the outer blackboard frame is connected with two side plate frames in a sliding manner, the front surface of the outer blackboard frame is fixedly connected with a middle blackboard frame body, the two side plate frames are symmetrically distributed along two sides of the middle blackboard frame body, the front surface of each side plate frame is fixedly connected with a handle, the inner side wall of each side plate frame is fixedly connected with a blackboard body, the rear part of each blackboard body is fixedly connected with a pulley connecting plate, one end of each pulley connecting plate is rotatably connected with a pulley, the outer side wall of each pulley is connected with a sliding rail in a sliding manner, the top part of each side plate frame is fixedly connected with a rack, the inner top end of each middle blackboard frame is fixedly connected with an induced draft plate, the inner part of the middle blackboard frame body is fixedly connected with, one side fixedly connected with pressure spring of sponge sassafras, the top fixedly connected with induced air device of outer frame of blackboard, the inside of induced air device is equipped with gear storehouse and induced air storehouse, the inside rotation of gear storehouse is connected with the gear, the gear with the rack toothing, the top fixedly connected with drive mechanism of gear, drive mechanism's output fixedly connected with induced air impeller, induced air impeller is located the inside of induced air storehouse, the inside bottom fixedly connected with air intake of induced air impeller, the bottom fixedly connected with check plate of air intake.

Preferably, an ash cleaning plate is arranged on the front surface of the outer frame of the sponge wiper, push rods are fixedly connected to the upper end and the lower end of the ash cleaning plate, one end of each push rod is fixedly connected with the blackboard body, and an ash cleaning roller is rotatably connected to one side, close to the sponge wiper, of the ash cleaning plate.

Preferably, the ash removing roller consists of a roller body and an ash removing plate body, and the outer side wall of the roller body is fixedly connected with the ash removing plate body.

Preferably, the transmission mechanism comprises a first bevel gear, a second bevel gear and an impeller shaft, the outer side wall of the first bevel gear is meshed with the second bevel gear, the impeller shaft is fixedly connected to one side of the second bevel gear, and one end of the impeller shaft is fixedly connected with the induced draft impeller.

Preferably, the bottom of the outer frame of the blackboard is clamped with a dust collecting bin, and the dust collecting bin is communicated with the middle frame body of the blackboard.

Preferably, a projection curtain is fixedly connected to the front surface of the frame body in the blackboard.

Preferably, the air inlet is located at the top of the frame body in the blackboard, and the air inlet is communicated with the frame body in the blackboard.

(III) advantageous effects

Compared with the prior art, the invention provides a dust self-suction type blackboard for teaching, which has the following beneficial effects:

1. The dust self-suction blackboard for teaching is characterized in that a blackboard middle frame body and a blackboard body are arranged, a sponge eraser outer frame is arranged inside the blackboard middle frame body, a sponge eraser is arranged on the sponge eraser outer frame, a pressure spring is arranged between the sponge eraser and the sponge eraser outer frame, the blackboard body slides into the blackboard middle frame body through a pulley slide rail, when sliding into the blackboard middle frame body, the blackboard body is in contact with the sponge eraser in the blackboard middle frame body, the sponge eraser is extruded outwards under the action of the pressure spring, the sponge eraser synchronously erases the whole surface of the blackboard body, when the blackboard is used, only the side plate frame needs to be pushed inwards, the blackboard body is driven by the side plate frame to move into the blackboard middle frame body, the sponge eraser in the blackboard middle frame body erases characters, time and labor are saved, the area of the sponge eraser is consistent with that of the blackboard body, the front surface of the blackboard body can be synchronously erased without dead corners, meanwhile, the trouble that the blackboard eraser needs to be found is avoided.

2. This dust is from inhaling formula blackboard for teaching, through setting up rack and the gear of meshing with it, make curb plate frame when inwards removing, it is rotatory to drive the gear by the rack, the gear drives the induced air impeller rotation through drive mechanism again, make the induced air impeller inhale the induced air storehouse with external air in, form the air current, the inside of framework in the blackboard is got into to the air current rethread air intake, make the air current lead the inside dust of wiping off of framework in the blackboard in the dust collection storehouse of below and collect, because whole process is gone on in the relatively sealed blackboard frame, thereby the phenomenon that the dust flies upward has been avoided.

Drawings

FIG. 1 is an internal view of an outer frame of a blackboard in accordance with the present invention;

FIG. 2 is a schematic view showing the construction of an outer frame of the blackboard in the present invention;

FIG. 3 is a schematic structural view of an air inducing device according to the present invention;

FIG. 4 is a connection diagram of the blackboard body and the slide rail according to the present invention;

FIG. 5 is a diagram showing the relationship between the sponge wiper outer frame and the ash removing plate;

FIG. 6 is a side sectional view of the sponge sassafras outer frame and the deashing plate according to the present invention;

FIG. 7 is an enlarged view taken at A of FIG. 4 according to the present invention;

FIG. 8 is a schematic view of the structure of the ash removing roller of the present invention.

In the figure: 1. an outer frame of the blackboard; 11. a projection screen; 2. a side plate frame; 21. a handle; 22. a blackboard body; 23. a pulley connecting plate; 24. a pulley; 25. a slide rail; 26. a rack; 3. a blackboard middle frame body; 31. an air induction plate; 32. an outer frame of sponge sassafras; 33. sponge brush; 34. a pressure applying spring; 4. an air inducing device; 41. a gear chamber; 42. a wind inducing bin; 43. a gear; 44. a transmission mechanism; 441. a first bevel gear; 442. a second bevel gear; 443. an impeller shaft; 45. an induced draft impeller; 46. an air inlet; 47. a check plate; 5. cleaning the ash plate; 51. a push rod; 52. an ash removal roller; 521. a roller body; 522. a dust removal plate body; 6. and (5) collecting dust.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a dust self-suction blackboard for teaching comprises an outer blackboard frame 1, a dust collecting bin 6 is clamped at the bottom of the outer blackboard frame 1, the dust collecting bin 6 is communicated with a middle blackboard frame 3, the dust collecting bin 6 collects dust generated in the outer blackboard frame 1, a projection screen 11 is fixedly connected to the front surface of the middle blackboard frame 3, two side plate frames 2 are slidably connected to the front surface of the outer blackboard frame 1, the middle blackboard frame 3 is fixedly connected to the front surface of the outer blackboard frame 1, the middle blackboard frame 3 is a hollow and relatively sealed frame, the two side plate frames 2 are symmetrically distributed along two sides of the middle blackboard frame 3, a handle 21 is fixedly connected to the front surface of each side plate frame 2, the side plate frames 2 are conveniently pushed by arranging the handle 21, a blackboard body 22 is fixedly connected to the inner side wall of each side plate frame 2, and a pulley connecting plate 23 is fixedly connected to the rear of, one end of the pulley connecting plate 23 is rotatably connected with a pulley 24, the outer side wall of the pulley 24 is slidably connected with a slide rail 25, the top of the side plate frame 2 is fixedly connected with a rack 26, the top of the inside of the frame 3 in the blackboard is fixedly connected with an air inducing plate 31, the air inducing plate 31 introduces air into the lower part of the inside of the frame 3 in the blackboard, the inside of the frame 3 in the blackboard is fixedly connected with a sponge wiper outer frame 32, the front surface of the sponge wiper outer frame 32 is slidably connected with a sponge wiper 33, one side of the sponge wiper 33 is fixedly connected with a pressure spring 34, the pressure spring 34 exerts elastic force on the sponge wiper 33, the top of the blackboard outer frame 1 is fixedly connected with an air inducing device 4, a gear bin 41 and an air inducing bin 42 are arranged inside the air inducing device 4, the gear bin 41 is rotatably connected with a gear 43, the gear 43 is engaged with the rack 26, the top of the gear 43 is fixedly, The outer side wall of the bevel gear I441 is engaged with the bevel gear II 442, one side of the bevel gear II 442 is fixedly connected with an impeller shaft 443, one end of the impeller shaft 443 is fixedly connected with an induced draft impeller 45, the bevel gear I441 is driven by a gear 43 to enable the bevel gear I441 to drive the bevel gear II 442 to rotate and change the rotating direction of the bevel gear II 442, the bevel gear II 442 further drives the impeller shaft 443 to rotate, the impeller shaft 443 drives the induced draft impeller 45 connected with the bevel gear II to rotate to form a power source, the output end of a transmission mechanism 44 is fixedly connected with the induced draft impeller 45, the induced draft impeller 45 vertically introduces air into an induced draft bin 42 in the rotating process, the induced draft impeller 45 is positioned inside the induced draft bin 42, the bottom end of the inside of the induced draft impeller 45 is fixedly connected with an air inlet 46, the air inlet 46 is positioned at the top of a frame body 3 in the blackboard, the air inlet 46 is communicated with the frame body 3 in the, the bottom of the air inlet 46 is fixedly connected with a check plate 47, the check plate 47 can effectively prevent air in the frame 3 in the blackboard from flowing back to cause dust to escape, the front surface of the sponge eraser outer frame 32 is provided with an ash cleaning plate 5, the upper end and the lower end of the ash cleaning plate 5 are fixedly connected with push rods 51, one end of each push rod 51 is fixedly connected with the blackboard body 22, one side of the ash cleaning plate 5, which is close to the sponge eraser 33, is rotatably connected with an ash cleaning roller 52, the ash cleaning plate 5 is driven by the push rods 51 on the blackboard body 22, so that the blackboard body 22 is driven to move inwards when moving, the ash cleaning plate 5 is driven to move inwards, as the ash cleaning roller 52 on the ash cleaning plate 5 is attached to the sponge eraser 33, the ash cleaning roller 52 rotates on the sponge eraser 33 to form vibration when the ash cleaning plate 5 moves inwards, the ash cleaning roller 52 beats out dust accumulated on the sponge eraser 33, the cleanness degree of the outer surface of the sponge eraser 33 can be effectively improved, and the erasing effect of the sponge eraser body 22 by, the ash removing roller 52 is composed of a roller body 521 and an ash removing plate body 522, the ash removing plate body 522 is fixedly connected to the outer side wall of the roller body 521, and the roller body 521 drives the ash removing plate body 522 to rotate in the rotating process, so that the ash removing plate body 522 beats the front surface of the sponge eraser 33.

The working principle is as follows: when the handwriting on the blackboard needs to be erased, firstly, the handle 21 is pushed, the handle 21 drives the side plate frame 2 to move towards the blackboard middle frame body 3, at the same time, the blackboard body 22 is contacted with the sponge eraser 33 in the blackboard middle frame body 3, the sponge eraser 33 erases the handwriting on the blackboard body 22, meanwhile, in the moving process of the blackboard body 22, the rack 26 above the blackboard body drives the gear 43 engaged with the blackboard body to rotate, the gear 43 drives the transmission mechanism 44 to output, the transmission mechanism 44 drives the induced draft impeller 45 to rotate, the induced draft impeller 45 rotates again, meanwhile, the outside air is sucked into the induced draft bin 42 to form air flow, finally, the air flow enters the blackboard middle frame body 3 again, the dust is introduced into the dust collecting bin 6 below to be collected, meanwhile, in the moving process of the blackboard body 22, the dust cleaning plate 5 is driven to move inwards, when the dust cleaning plate 5 moves inwards, the dust cleaning roller 52 rotates on the sponge eraser 33 to form vibration, the dust cleaning roller 52 beats the dust accumulated on the sponge sassafras 33, and the beaten dust is guided into the dust collecting bin 6 to be collected due to the action of the air flow and the gravity.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dust is from inhaling formula blackboard for teaching, includes outer frame (1) of blackboard, its characterized in that: the blackboard comprises an outer blackboard frame (1), and is characterized in that the front surface of the outer blackboard frame (1) is connected with two side plate frames (2) in a sliding manner, the front surface of the outer blackboard frame (1) is fixedly connected with a middle blackboard frame body (3) in the blackboard, the side plate frames (2) are symmetrically distributed along the two sides of the middle blackboard frame body (3), the front surface of the side plate frames (2) is fixedly connected with a handle (21), the inner side wall of each side plate frame (2) is fixedly connected with a blackboard body (22), the rear of each blackboard body (22) is fixedly connected with a pulley connecting plate (23), one end of each pulley connecting plate (23) is rotatably connected with a pulley (24), the outer side wall of each pulley (24) is connected with a sliding rail (25) in a sliding manner, the top of each side plate frame (2) is fixedly connected with, the blackboard is characterized in that a sponge sassafras outer frame (32) is fixedly connected to the inside of a frame body (3) in the blackboard, a sponge sassafras (33) is slidably connected to the front surface of the sponge sassafras outer frame (32), a pressure spring (34) is fixedly connected to one side of the sponge sassafras (33), an air inducing device (4) is fixedly connected to the top of the blackboard outer frame (1), a gear bin (41) and an air inducing bin (42) are arranged inside the air inducing device (4), a gear (43) is rotatably connected to the inside of the gear bin (41), the gear (43) is meshed with a rack (26), a transmission mechanism (44) is fixedly connected to the top of the gear (43), an air inducing impeller (45) is fixedly connected to the output end of the transmission mechanism (44), the air inducing impeller (45) is located inside the air inducing bin (42), and an air inlet (46) is fixedly connected to the bottom end of the air inducing impeller (45, the bottom of the air inlet (46) is fixedly connected with a check plate (47).

2. The self-suction dust blackboard as claimed in claim 1, wherein: the sponge sassafras frame (32) front surface is equipped with deashing board (5), the upper and lower both ends fixedly connected with push rod (51) of deashing board (5), the one end of push rod (51) with blackboard plate body (22) fixed connection, deashing board (5) are close to one side of sponge sassafras (33) is rotated and is connected with deashing roller (52).

3. The self-suction dust blackboard as claimed in claim 2, wherein: the deashing roller (52) comprises a roller body (521) and an deashing plate body (522), and the outer side wall of the roller body (521) is fixedly connected with the deashing plate body (522).

4. The self-suction dust blackboard as claimed in claim 1, wherein: the transmission mechanism (44) comprises a first bevel gear (441), a second bevel gear (442) and an impeller shaft (443), wherein the second bevel gear (442) is meshed with the outer side wall of the first bevel gear (441), the impeller shaft (443) is fixedly connected to one side of the second bevel gear (442), and one end of the impeller shaft (443) is fixedly connected with the air-inducing impeller (45).

5. The self-suction dust blackboard as claimed in claim 1, wherein: the bottom joint of outer frame of blackboard (1) has dust to collect storehouse (6), dust collect storehouse (6) with framework (3) communicate with each other in the blackboard.

6. The self-suction dust blackboard as claimed in claim 1, wherein: the front surface of the frame body (3) is fixedly connected with a projection curtain (11) in the blackboard.

7. The self-suction dust blackboard as claimed in claim 1, wherein: the air inlet (46) is located at the top of the frame body (3) in the blackboard, and the air inlet (46) is communicated with the frame body (3) in the blackboard.