CN113696663B

CN113696663B - Automatic blackboard erasing device for thinking political education and teaching

Info

Publication number: CN113696663B
Application number: CN202111106920.8A
Authority: CN
Inventors: 付广环
Original assignee: Hebei University of Environmental Engineering
Current assignee: Hebei University of Environmental Engineering
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-08-19
Anticipated expiration: 2041-09-22
Also published as: CN113696663A

Abstract

The invention relates to the technical field of teaching articles, and discloses an automatic blackboard erasing device for ideological education and teaching, which comprises an adjusting box, wherein the adjusting box is of a hollow cuboid structure, the lower surface of the adjusting box is provided with an opening groove, the upper surface and the lower surface of the inside of the adjusting box are both provided with sliding grooves, the inside of each sliding groove is connected with a baffle in a sliding manner, a second threaded rod is driven by a second motor to rotate, so that a first connecting block moves forwards and backwards, when the first connecting block moves backwards, a belt is pulled to move, the second connecting block is driven to move forwards, a supporting rod is further pushed against the baffle to move forwards, when the first connecting block moves forwards, the second connecting block moves backwards due to the acting force of a tension spring, the baffle is driven to move backwards, so that the scrubbing box is separated from the surface of a blackboard, the first threaded rod is driven to rotate by the first motor, the blackboard eraser is characterized in that the blackboard eraser is provided with a first bevel gear, a second bevel gear and a third motor, wherein the first bevel gear is meshed with the second bevel gear, the third motor drives the second bevel gear to rotate, and the third bevel gear is meshed with the first bevel gear.

Description

Automatic blackboard erasing device for ideological and political education teaching

Technical Field

The invention relates to the technical field of teaching supplies, in particular to an automatic blackboard erasing device for ideological and political education teaching.

Background

The blackboard is not particularly specified to a black board, is a plane capable of repeatedly writing in the traditional sense, is hard, is mostly used for teaching, can be written on by using specific writing materials such as chalk and the like, is used for writing teaching contents and key notes on the blackboard by means of the blackboard when a political education teaching classroom is thought, is usually used for students to record and watch, and is convenient for reuse in the later period because the blackboard is full of recorded contents which are not needed to be scrubbed.

The blackboard eraser is generally adopted for traditional blackboard erasing, then a student manually holds the blackboard eraser to erase the surface of the blackboard, time and labor are wasted if the blackboard eraser is adopted for processing, and the blackboard eraser is written by chalk, a large amount of dust is easy to scatter during erasing, and the health of the student or a teacher is damaged, so that a device for automatically erasing the blackboard is born on the market.

Disclosure of Invention

Technical problem to be solved

In view of the shortcomings of the prior art, the invention provides an automatic blackboard erasing device for thinking education and teaching, which solves the problems mentioned in the background.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: an automatic blackboard erasing device for thinking political affairs education and teaching, includes an adjusting box, the adjusting box is a hollow cuboid structure, the lower surface of the adjusting box is provided with an opening groove, the inner upper surface and the lower surface of the adjusting box are both provided with a sliding groove, the inner part of the sliding groove is connected with a baffle, the right side of the baffle positioned on the left side is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a first threaded rod, the right end of the first threaded rod is rotatably connected with the left side of the baffle positioned on the right side, the outer side wall of the first threaded rod is in threaded connection with a threaded block, the inner rear surface of the adjusting box is symmetrically and fixedly connected with a second motor, the output shaft of the second motor is fixedly connected with a second threaded rod, the front end of the second threaded rod is rotatably connected with a sliding barrel, and the front end of the second threaded rod is positioned inside the sliding barrel, the inner left side and the inner right side of the adjusting box are both fixedly connected with a connecting plate, the front end of the sliding cylinder is fixedly connected with the rear end of the connecting plate, the outer side wall of the second threaded rod is in threaded connection with a first adjusting block, the outer side wall of the sliding cylinder is in sliding connection with a second adjusting block, the bottom end of the connecting block is fixedly connected with a concave wheel, the outer side wall of the concave wheel is sleeved with a belt, two ends of the belt are respectively fixedly connected with the right side of the first adjusting block and the right side of the second adjusting block, the right side of the second adjusting block is fixedly connected with a supporting rod, the supporting rod penetrates through the connecting plate and is fixedly connected with the rear surface of the baffle plate, an extension spring is fixedly connected between the second adjusting block and the connecting plate, and a first limiting rod is fixedly connected between the rear surface of the connecting block and the inner rear surface of the adjusting box, a second limiting rod is fixedly connected between the two baffles, the second limiting rod penetrates through the thread block and is rotatably connected with the thread block, the lower surface of the thread block is fixedly connected with an adjusting box, the inner part of the adjusting box is rotatably connected with a shaft lever, the outer side wall of the shaft lever is fixedly connected with a first helical gear, the inner upper surface of the adjusting box is fixedly connected with a third motor, the output shaft of the third motor is fixedly connected with a second helical gear, the first helical gear is meshed with the second helical gear, two ends of the outer side wall of the shaft lever are fixedly connected with a clockwork spring, one end of the clockwork spring, which is far away from the shaft lever, is fixedly connected with the inner upper surface of the adjusting box, the outer side wall of the shaft lever is fixedly connected with two groups of adjusting ropes, and the lower surface of the thread block is fixedly connected with an inserting barrel at the rear part of the adjusting box, an extension rod is arranged inside the inserting cylinder, the bottom end of the inserting cylinder is located below the adjusting box, a fixing plate is arranged below the adjusting box, the bottom end of the extension rod is fixedly connected with the upper surface of the fixing plate, and one end, far away from the shaft rod, of the adjusting rope is fixedly connected with the upper surface of the fixing plate.

Preferably, the lower surface of the fixed plate is provided with a slot, the left side and the right side of the fixed plate are provided with insertion ports, the fixed plate is internally provided with a scrubbing box, the front surface of the scrubbing box is connected with two extrusion strips in a sliding manner, the opposite sides of the two extrusion strips are fixedly connected with compression springs, the opposite sides of the two extrusion strips are fixedly connected with insertion blocks, and the two insertion blocks penetrate through the two insertion ports respectively.

Preferably, the inside fixedly connected with fourth motor of box cleans, the output shaft fixedly connected with bull stick of fourth motor, the rear surface of cleaning the box has been seted up and has been wiped the hole, the inside fixedly connected with filter of wiping the hole, the rear end of bull stick runs through the filter, just the lateral wall rear end fixedly connected with three sponge strips of bull stick, the lateral wall of bull stick is located clean the inside fixedly connected with fan blade of box, the below of regulating box is equipped with the blackboard, the rear surface of sponge strip with the front surface of blackboard contacts.

Preferably, the bottom end of the scrubbing box is detachably connected with a dust box, the dust box is communicated with the scrubbing box, a fan is embedded in the left side of the interior of the dust box, and a flexible hose is fixedly connected to the left side of the dust box.

Preferably, a handle is fixedly connected to the front surface of the scrubbing box.

Preferably, the length of the first threaded rod is greater than that of the blackboard.

Preferably, the left side and the right side of regulating box all fixedly connected with location ear, the inside through thread connection of location ear has the bolt.

Preferably, the top end of the extension rod is fixedly connected with a limiting block, the length of the limiting block is larger than the inner diameter of the opening of the insertion cylinder, the limiting block is of a filter plate structure with a plurality of holes formed in the surface, an extrusion spring is fixedly connected between the inner upper surface of the insertion cylinder and the limiting block, the upper surface of the limiting block is fixedly connected with an air bag, the top end of the air bag is fixedly connected with the inner upper surface of the insertion cylinder, a U-shaped air injection ring is embedded in the insertion cylinder, and the U-shaped air injection ring is sleeved on the outer side wall of the extension rod in an air injection mode.

(III) advantageous effects

The invention provides an automatic blackboard erasing device for thinking education and teaching, which has the following beneficial effects:

(1) the second motor drives the second threaded rod to rotate, so that the first connecting block can move back and forth, when the first connecting block moves backwards, the belt is pulled to move, the second connecting block is driven to move forwards, the supporting rod pushes the baffle plate to move forwards, when the first connecting block moves forwards, the second connecting block moves backwards due to the acting force of the extension spring, the baffle plate is driven to move backwards, so that the scrubbing box is separated from the surface of the blackboard, the first motor drives the first threaded rod to rotate, so that the left and right movement of the threaded block is realized, the scrubbing box is moved leftwards and rightwards, the third motor drives the second helical gear to rotate, the second helical gear is meshed with the first helical gear and is connected with the first helical gear, the rotation of the shaft rod is realized, the retraction and release of the adjusting rope is realized, the extension rod is driven, the scrubbing box moves upwards and downwards, and the blackboard can be scrubbed comprehensively.

(2) According to the invention, the scrubbing box is inserted into the fixed plate through the compression spring, the extrusion strip and the insertion block, and after the scrubbing box is inserted into the fixed plate, the insertion block is inserted into the insertion port, so that the scrubbing box is prevented from falling off and further moves along with the vertical movement or the horizontal movement of the fixed plate.

(3) According to the blackboard eraser, the fourth motor is fixedly connected inside the erasing box and can drive the rotating rod to rotate, when the rotating rod rotates, the sponge strip fixed at the rear end of the outer side wall of the rotating rod is in contact with the blackboard and rotates to erase chalk records on the blackboard, and when the rotating rod rotates, the fan blades inside the erasing box can be driven to rotate, the fan blades generate suction force, dust is sucked into the erasing box through the filter plate, and the dust is prevented from floating.

(4) According to the invention, the dust box is detachably connected to the bottom end of the scrubbing box, when the dust box is used, the telescopic hose is aligned to the dust groove of the blackboard, and then the dust is sucked into the dust box through the telescopic hose by the fan, so that the dust in the dust groove of the blackboard is conveniently and quickly cleaned, and the dust is prevented from being accumulated and scattered.

(5) According to the invention, the limiting block is fixed at the top end of the extension rod, the extrusion spring and the air bag are fixed on the upper surface of the limiting block, the air bag can be opened and inflated when the extension rod moves downwards, the opened air bag is extruded and exhausted when the extension rod moves upwards, the air is exhausted through the U-shaped air injection ring, and the outer side wall of the extension rod is cleaned.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is an enlarged view of the structure at B of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 taken along the direction C-C;

FIG. 5 is a schematic view of the structure of FIG. 1 taken along direction D-D in the present invention;

FIG. 6 is a top view of the internal structure of the scrub box of the present invention.

In the figure: 1. an adjusting box; 2. a chute; 3. a baffle plate; 4. a first motor; 5. a first threaded rod; 6. a thread block; 7. a second motor; 8. a second threaded rod; 9. a slide cylinder; 10. a connecting plate; 11. a first regulating block; 12. a second regulating block; 13. a concave wheel; 14. a belt; 15. a support bar; 16. an extension spring; 17. a first limit rod; 18. a second limiting rod; 19. an adjustment box; 20. a shaft lever; 21. a first helical gear; 22. a third motor; 23. a second helical gear; 24. a clockwork spring; 25. adjusting the rope; 26. inserting a cylinder; 27. an extension pole; 28. a through-hole groove; 29. a fixing plate; 30. a slot; 31. an interface; 32. a scrubbing box; 33. extruding the strip; 34. a compression spring; 35. inserting a block; 36. a fourth motor; 37. a rotating rod; 38. wiping holes; 39. a filter plate; 40. a sponge strip; 41. a fan blade; 42. a blackboard; 43. a dust box; 44. a fan; 45. a flexible hose; 46. a handle; 47. positioning the lug; 48. a bolt; 49. a limiting block; 50. extruding the spring; 51. an air bag; 52. a U-shaped gas injection ring.

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.

As shown in fig. 1 to 6, the present invention provides a technical solution: an automatic blackboard erasing device for thinking and political affairs education and teaching comprises an adjusting box 1, wherein the adjusting box 1 is of a hollow cuboid structure, the lower surface of the adjusting box 1 is provided with a through groove 28, the upper surface and the lower surface of the inside of the adjusting box 1 are both provided with a sliding groove 2, the inside of the sliding groove 2 is connected with a baffle 3 in a sliding manner, the right side of the baffle 3 positioned on the left side is fixedly connected with a first motor 4, the output shaft of the first motor 4 is fixedly connected with a first threaded rod 5, the right end of the first threaded rod 5 is rotatably connected with the left side of the baffle 3 positioned on the right side, the outer side wall of the first threaded rod 5 is connected with a threaded block 6 in a threaded manner, the rear surface of the inside of the adjusting box 1 is symmetrically and fixedly connected with a second motor 7, the output shaft of the second motor 7 is fixedly connected with a second threaded rod 8, the front end of the second threaded rod 8 is rotatably connected with a sliding barrel 9, and the front end of the second threaded rod 8 is positioned inside the sliding barrel 9, a connecting plate 10 is fixedly connected with the left side and the right side inside the adjusting box 1, the front end of a sliding barrel 9 is fixedly connected with the rear end of the connecting plate 10, the outer side wall of a second threaded rod 8 is in threaded connection with a first adjusting block 11, the outer side wall of the sliding barrel 9 is in sliding connection with a second adjusting block 12, the bottom end of the connecting plate 10 is fixedly connected with a concave wheel 13, the outer side wall of the concave wheel 13 is sleeved with a belt 14, two ends of the belt 14 are respectively and fixedly connected with the right side of the first adjusting block 11 and the right side of the second adjusting block 12, the right side of the second adjusting block 12 is fixedly connected with a supporting rod 15, the supporting rod 15 penetrates through the connecting plate 10 and is fixedly connected with the rear surfaces of the baffles 3, an extension spring 16 is fixedly connected between the second adjusting block 12 and the connecting plate 10, a first limiting rod 17 is fixedly connected between the rear surface of the connecting plate 10 and the rear surface inside the adjusting box 1, and a second limiting rod 18 is fixedly connected between the two baffles 3, the second limiting rod 18 penetrates through the thread block 6, the second limiting rod 18 is connected with the thread block 6 in a rotating mode, the lower surface of the thread block 6 is fixedly connected with an adjusting box 19, the inner portion of the adjusting box 19 is connected with a shaft rod 20 in a rotating mode, the outer side wall of the shaft rod 20 is fixedly connected with a first helical gear 21, the inner upper surface of the adjusting box 19 is fixedly connected with a third motor 22, the output shaft of the third motor 22 is fixedly connected with a second helical gear 23, the first helical gear 21 is meshed with the second helical gear 23, the two ends of the outer side wall of the shaft rod 20 are fixedly connected with a clockwork spring 24, one end, away from the shaft rod 20, of the clockwork spring 24 is fixedly connected with the inner upper surface of the adjusting box 19, the outer side wall of the shaft rod 20 is fixedly connected with two groups of adjusting ropes 25, the lower surface of the thread block 6 is located behind the adjusting box 19 and is fixedly connected with an inserting cylinder 26, an extension rod 27 is arranged inside the inserting cylinder 26, and the bottom end of the inserting cylinder 26 is located below the adjusting box 1, a fixed plate 29 is arranged below the adjusting box 1, the bottom end of an extension rod 27 is fixedly connected with the upper surface of the fixed plate 29, one end of an adjusting rope 25, which is far away from the shaft rod 20, is fixedly connected with the upper surface of the fixed plate 29, a second motor 7 drives a second threaded rod 8 to rotate so as to realize the back-and-forth movement of the first adjusting block 11, when the adjusting rope moves backwards, the second adjusting block 12 slides forwards to drive an extension spring 16 to contract, and a support rod 15 moves forwards to drive a baffle plate 3 to move forwards so as to realize the separation of a scrubbing box 32 and the surface of a blackboard 42, when the first adjusting block 11 moves forwards, the extension spring 16 pushes the second adjusting block 12 backwards due to the self-tension to drive the baffle plate 3 to move backwards so as to realize the surface contact of the scrubbing box 32 and the blackboard 42, and when the baffle plate 3 moves forwards and backwards, the first motor 4 and the first threaded rod 5 and the threaded block 6 are driven to move forwards and backwards, thereby realizing that the thread block 6 drives the fixing plate 29 to move back and forth, realizing the contact and separation of the scrubbing box 32 and the blackboard 42, when the scrubbing box 32 is contacted with the blackboard 42, the scrubbing effect can be generated on the contact surface of the blackboard 42, the first threaded rod 5 is driven to rotate by the first motor 4, further realizes the left and right movement of the thread block 6, further drives the fixed plate 29 to move left and right, realizes the left and right movement of the scrubbing box 32, realizes the transverse scrubbing of the blackboard 42, the third motor 22 drives the second bevel gear 23 to rotate and is meshed with the first bevel gear 21 to realize the rotation of the shaft lever 20, and then the adjusting rope 25 is retracted, when the adjusting rope 25 is released, the fixed plate 29 and the scrubbing box 32 move downwards along with the self gravity, the extension rod 27 is driven to extend from the inserting cylinder 26, the verticality of the scrubbing box 32 is ensured, and then the scrubbing box 32 can scrub the surface of the blackboard 42 vertically.

Further, slot 30 has been seted up to the lower surface of fixed plate 29, interface 31 has all been seted up to the left and right sides of fixed plate 29, the inside of fixed plate 29 is equipped with cleans box 32, the front surface sliding connection who cleans box 32 has two extrusion strips 33, the opposite side fixedly connected with compression spring 34 of two extrusion strips 33, the equal fixedly connected with inserted block 35 in the opposite side of two extrusion strips 33, two inserted blocks 35 run through two interface 31 respectively, press two extrusion strips 33 to the opposite side, when producing the extrusion force to compression spring 34, inserted block 35 breaks away from interface 31, and then the user can take out box 32 from fixed plate 29 in with cleaning, realize cleaning the exclusive use of box 32, guarantee that quick convenient cleans a certain position and use.

Further, a fourth motor 36 is fixedly connected inside the scrubbing box 32, an output shaft of the fourth motor 36 is fixedly connected with a rotating rod 37, the rear surface of the scrubbing box 32 is provided with scrubbing holes 38, a filter plate 39 is fixedly connected inside the scrubbing holes 38, the rear end of the rotating rod 37 penetrates through the filter plate 39, three sets of sponge strips 40 are fixedly connected to the rear end of the outer side wall of the rotating rod 37, the outer side wall of the rotating rod 37 is fixedly connected with fan blades 41 inside the scrubbing box 32, a blackboard 42 is arranged below the adjusting box 1, the rear surface of each sponge strip 40 is in contact with the front surface of the blackboard 42, when the scrubbing box 32 scrubs the surface of the blackboard 42, the rotating rod 37 is driven to rotate through the fourth motor 36, then the sponge strips 40 rotate to be in contact with the blackboard 42 for erasing, and when the erasing treatment is performed, the inner fan blades 41 rotate to generate suction force to adsorb dust generated during the erasing, and due to the filter plate 39, dust is adsorbed to the inside of the scrub box 32 through the filter plate 39.

Further, the bottom of scrubbing box 32 is dismantled and is connected with dust box 43, dust box 43 is linked together with scrubbing box 32, fan 44 has been inlayed on the inside left side of dust box 43, the left side fixedly connected with flexible hose 45 of dust box 43, when the user writes the record on blackboard 42, because the chalk contacts with blackboard 42, can produce certain dust and drop to the bottom of blackboard 42 and pile up, when scrubbing box 32 and being located blackboard 42 bottom, aim at blackboard 42 bottom position through flexible hose 45, then open fan 44, inhale dust box 43 inside with accumulational dust and store, and inside the dust box 43 that the adsorbed in scrubbing box 32 finally also falls into, make things convenient for post processing.

Furthermore, a handle 46 is fixedly connected to the front surface of the scrubbing box 32, and the handle 46 is fixed on the surface of the scrubbing box 32, so that a user can conveniently take and place the scrubbing box 32 when the user uses the scrubbing box 32 alone.

Further, the length of the first threaded rod 5 is greater than that of the blackboard 42, so that the length of the first threaded rod 5 is greater than that of the blackboard 42, the travel distance of the threaded block 6 is greater than that of the blackboard 42, and the blackboard 42 can be completely scrubbed by the scrubbing box 32.

Furthermore, the left side and the right side of the adjusting box 1 are fixedly connected with positioning lugs 47, the bolts 48 penetrate through the positioning lugs 47 and the bolts 48, and the adjusting box 1 is fixed at a designated position of a wall body through the positioning lugs 47 and the bolts 48 and cannot easily fall off.

Furthermore, a limiting block 49 is fixedly connected to the top end of the extension rod 27, the length of the limiting block 49 is larger than the inner diameter of the opening of the insertion tube 26, the limiting block 49 is a filter plate structure with a plurality of holes on the surface, an extrusion spring 50 is fixedly connected between the inner upper surface of the insertion tube 26 and the limiting block 49, an air bag 51 is fixedly connected to the upper surface of the limiting block 49, the top end of the air bag 51 is fixedly connected with the inner upper surface of the insertion tube 26, a U-shaped air injection ring 52 is embedded in the insertion tube 26, the U-shaped air injection ring 52 is sleeved on the outer side wall of the extension rod 27, the air bag 51 is opened and inflated as the extension rod 27 moves downward, and as the extension rod 27 moves upward, the air bag 51 is compressed, air in the air bag 51 is extruded out during compression and is discharged through the U-shaped air injection ring 52, and the outer side wall of the extension rod 27 is cleaned during discharge, so that dust is prevented from being attached to the outer side wall of the extension rod 27.

In conclusion, the work flow of the invention is as follows: when in use, the blackboard 42 is fixed at a designated installation position, the adjusting box 1 is fixed above the blackboard 42 through the positioning lug 47 and the bolt 48, the second motor 7 drives the second threaded rod 8 to rotate, so as to realize the forward and backward movement of the first adjusting block 11, when moving backwards, the second adjusting block 12 slides forwards, the extension spring 16 is driven to contract, the support rod 15 moves forwards, the baffle plate 3 is driven to move forwards, so as to realize the separation of the scrubbing box 32 and the surface of the blackboard 42, when the first adjusting block 11 moves forwards, the extension spring 16 pushes the second adjusting block 12 backwards due to self-tension, the baffle plate 3 is driven to move backwards, so as to realize the surface contact of the scrubbing box 32 and the blackboard 42, when the baffle plate 3 moves forwards and backwards, the first motor 4, the first threaded rod 5 and the threaded block 6 are driven to move forwards and backwards, so as to realize the forward and backwards movement of the fixing plate 29 driven by the threaded block 6, the contact and separation of the scrubbing box 32 and the blackboard 42 are realized, when the scrubbing box 32 is contacted with the blackboard 42, the scrubbing effect on the contact surface of the blackboard 42 can be generated, the first motor 4 drives the first threaded rod 5 to rotate, the left and right movement of the threaded block 6 is further realized, the fixed plate 29 is further driven to move left and right, the horizontal scrubbing of the blackboard 42 is realized, the third motor 22 drives the second helical gear 23 to rotate and is meshed and connected with the first helical gear 21, the rotation of the shaft rod 20 is realized, the adjusting rope 25 is further retracted and extended, when the adjusting rope 25 is released, the fixed plate 29 and the scrubbing box 32 move downwards along with the self gravity, the extension rod 27 is driven to extend from the insertion tube 26, the verticality of the scrubbing box 32 is ensured, then the vertical scrubbing of the surface of the blackboard 42 by the scrubbing box 32 is realized, and when the scrubbing is carried out, the rotating rod 37 is driven to rotate by the fourth motor 36, and then sponge strip 40 rotates and blackboard 42 contact, the processing of erasing, and when erasing the processing, inside fan blade 41 rotates and produces suction, will adsorb the dust that produces when erasing, when the user only needs to erase certain position in blackboard 42, the user can directly press two extrusion strips 33 to the opposite side, when producing the extrusion force to compression spring 34, inserted block 35 breaks away from interface 31, and then the user can take out from fixed plate 29 with scrubbing box 32, realize scrubbing the exclusive use of box 32, guarantee that quick convenient scrubbing a certain position uses.

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.

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 an automatic blackboard device of wiping for think political affairs education and teaching usefulness, includes regulating box (1), its characterized in that: the adjusting box (1) is of a hollow cuboid structure, an opening groove (28) is formed in the lower surface of the adjusting box (1), sliding grooves (2) are formed in the upper surface and the lower surface of the inner portion of the adjusting box (1), a baffle (3) is connected to the inner portion of each sliding groove (2), a first motor (4) is fixedly connected to the right side of the baffle (3) on the left side, a first threaded rod (5) is fixedly connected to an output shaft of the first motor (4), the right end of the first threaded rod (5) is rotatably connected to the left side of the baffle (3) on the right side, a threaded block (6) is connected to the outer side wall of the first threaded rod (5) in a threaded mode, a second motor (7) is fixedly connected to the inner rear surface of the adjusting box (1) in a symmetrical mode, and a second threaded rod (8) is fixedly connected to the output shaft of the second motor (7), the front end of second threaded rod (8) is rotated and is connected with slide cartridge (9), the front end of second threaded rod (8) is located the inside of slide cartridge (9), the equal fixedly connected with connecting plate (10) in inside left side and inside right side of regulating box (1), the front end of slide cartridge (9) with the rear end fixed connection of connecting plate (10), the lateral wall threaded connection of second threaded rod (8) has first regulating block (11), the lateral wall sliding connection of slide cartridge (9) has second regulating block (12), the bottom fixedly connected with concave wheel (13) of connecting plate (10), the lateral wall cover of concave wheel (13) is equipped with belt (14), the both ends of belt (14) respectively with the right side of first regulating block (11) with the right side fixed connection of second regulating block (12), the right side fixedly connected with bracing piece (15) of second regulating block (12), the supporting rod (15) penetrates through the connecting plate (10) and is fixedly connected with the rear surfaces of the baffles (3), an extension spring (16) is fixedly connected between the second adjusting block (12) and the connecting plate (10), a first limiting rod (17) is fixedly connected between the rear surface of the connecting plate (10) and the inner rear surface of the adjusting box (1), a second limiting rod (18) is fixedly connected between the two baffles (3), the second limiting rod (18) penetrates through the threaded block (6), the second limiting rod (18) is rotatably connected with the threaded block (6), an adjusting box (19) is fixedly connected with the lower surface of the threaded block (6), a shaft lever (20) is rotatably connected with the inner part of the adjusting box (19), a first bevel gear (21) is fixedly connected with the outer side wall of the shaft lever (20), and a third motor (22) is fixedly connected with the inner upper surface of the adjusting box (19), a second helical gear (23) is fixedly connected to an output shaft of the third motor (22), the first helical gear (21) is meshed with the second helical gear (23), a clockwork spring (24) is fixedly connected to two ends of the outer side wall of the shaft rod (20), one end, away from the shaft rod (20), of the clockwork spring (24) is fixedly connected to the inner upper surface of the adjusting box (19), two groups of adjusting ropes (25) are fixedly connected to the outer side wall of the shaft rod (20), an inserting cylinder (26) is fixedly connected to the rear portion of the adjusting box (19) on the lower surface of the thread block (6), an extension rod (27) is arranged inside the inserting cylinder (26), the bottom end of the inserting cylinder (26) is located below the adjusting box (1), a fixing plate (29) is arranged below the adjusting box (1), and the bottom end of the extension rod (27) is fixedly connected to the upper surface of the fixing plate (29), one end, far away from the shaft rod (20), of the adjusting rope (25) is fixedly connected with the upper surface of the fixing plate (29), a slot (30) is formed in the lower surface of the fixing plate (29), inserting ports (31) are formed in the left side and the right side of the fixing plate (29), a scrubbing box (32) is arranged inside the fixing plate (29), two extrusion strips (33) are connected to the front surface of the scrubbing box (32) in a sliding mode, compression springs (34) are fixedly connected to the opposite sides of the two extrusion strips (33), inserting blocks (35) are fixedly connected to the opposite sides of the two extrusion strips (33), the two inserting blocks (35) penetrate through the two inserting ports (31) respectively, a limiting block (49) is fixedly connected to the top end of the extension rod (27), the length of the limiting block (49) is larger than the inner diameter of the opening of the inserting barrel (26), and the limiting block (49) is of a filtering plate structure with a plurality of holes formed in the surface, an extrusion spring (50) is fixedly connected between the inner upper surface of the inserting tube (26) and the limiting block (49), an air bag (51) is fixedly connected to the upper surface of the limiting block (49), the top end of the air bag (51) is fixedly connected with the inner upper surface of the inserting tube (26), a U-shaped air injection ring (52) is embedded in the inserting tube (26), and the outer side wall of the extension rod (27) is sleeved with the U-shaped air injection ring (52).

2. The automatic blackboard erasing device for ideological and political education and teaching according to claim 1, characterized in that: clean inside fixedly connected with fourth motor (36) of box (32), the output shaft fixedly connected with bull stick (37) of fourth motor (36), the rear surface of cleaning box (32) has been seted up and has been wiped hole (38), wipe inside fixedly connected with filter (39) of hole (38), the rear end of bull stick (37) runs through filter (39), just the lateral wall rear end fixedly connected with three sponge strips (40) of group of bull stick (37), the lateral wall of bull stick (37) is located clean inside fixedly connected with fan blade (41) of box (32), the below of regulating box (1) is equipped with blackboard (42), the rear surface of sponge strip (40) with the front surface of blackboard (42) contacts.

3. The automatic blackboard erasing device for ideological and political education teaching according to claim 2, characterized in that: the bottom of scrubbing box (32) is dismantled and is connected with dust box (43), dust box (43) with scrubbing box (32) are linked together, the inside left side of dust box (43) is inlayed and is equipped with fan (44), the left side fixedly connected with expansion hose (45) of dust box (43).

4. The automatic blackboard erasing device for ideological and political education and teaching according to claim 3, characterized in that: the front surface of the scrubbing box (32) is fixedly connected with a handle (46).

5. The automatic blackboard erasing device for ideological and political education teaching according to claim 2, characterized in that: the length of the first threaded rod (5) is greater than that of the blackboard (42).

6. The automatic blackboard erasing device for ideological and political education and teaching according to claim 1, characterized in that: the left side and the right side of regulating box (1) are all fixedly connected with location ear (47), the inside through thread of location ear (47) is connected with bolt (48).