CN109733098B

CN109733098B - Blackboard eraser with comprehensive dust collection function

Info

Publication number: CN109733098B
Application number: CN201910177763.6A
Authority: CN
Inventors: 赵洁
Original assignee: Individual
Current assignee: Sheng Jia
Priority date: 2019-03-10
Filing date: 2019-03-10
Publication date: 2020-07-10
Anticipated expiration: 2039-03-10
Also published as: CN109733098A

Abstract

The invention relates to a blackboard eraser with a comprehensive dust collection function, which comprises a main body, a cleaning layer, a sliding channel and a dust removal fan, wherein a piston air rod is arranged in the main body, the top of the piston air rod is connected with a placing plate, the main body is connected with the piston air rod through a screw, the piston air rod is connected with the placing plate through a screw, the cleaning layer is arranged above the placing plate, the sliding channel is arranged below the main body, a limiting plate is arranged on the inner side of the sliding channel, the sliding channel is movably connected with the main body, the sliding channel is movably connected with the limiting plate, and a falling collection box is arranged on the outer side of the sliding channel. The invention has the beneficial effects that: this blackboard eraser with comprehensive dust absorption function is provided with the pad that absorbs water, can prevent that the device from taking place the possibility of leaking when using, has improved the result of use of device for the work efficiency of device obtains effectual reinforcing.

Description

Blackboard eraser with comprehensive dust collection function

Technical Field

The invention relates to the technical field of teaching aids, in particular to an eraser with a comprehensive dust collection function.

Background

The blackboard eraser is an indispensable teaching aid for students and teachers in daily learning, and the common blackboard eraser has the inevitable defect that chalk dust can float in a mess in the using process and is inevitably sucked into lungs by teachers or students, so that certain diseases are caused in the long term, and a dust-free blackboard eraser is needed.

The current blackboard eraser produces a large amount of dust easily when using, can cause the injury to the teacher that uses and the student's of front-seat lung, and the dust that falls down can cause the increase of classroom clean time moreover, and the device generally can not directly be with it and blackboard snap-on when using simultaneously, leads to the device to lose easily, and the convenient operative installations of teacher of being not convenient for causes the teaching process to descend.

Disclosure of Invention

The invention aims to provide an eraser with a comprehensive dust absorption function, and aims to solve the problems that the existing eraser in the background art easily generates a large amount of dust when in use, a used teacher and the lung of a front-row student are damaged, the falling dust can increase the cleaning time of a classroom, and the device cannot be directly fixed with a blackboard during use, so that the device is easy to lose, and the device is inconvenient for the teacher to use conveniently, and the teaching progress is reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a blackboard eraser with comprehensive dust absorption function comprises a main body, a cleaning layer, a sliding channel and a dust removal fan, wherein a piston air rod is installed inside the main body, a placing plate is connected to the top of the piston air rod, the main body is connected with the piston air rod through screws, the piston air rod is connected with the placing plate through screws, the cleaning layer is installed above the placing plate, the sliding channel is arranged below the main body, a limiting plate is installed on the inner side of the sliding channel, the sliding channel is movably connected with the main body, the sliding channel is movably connected with the limiting plate, a falling collection box is arranged on the outer side of the sliding channel, fixing bolts are arranged on two sides of the falling collection box, the falling collection box is in threaded connection with the fixing bolts, cleaning boxes are installed on the left side and the right side of the main body, a partition box is arranged at the bottom of the cleaning boxes, and the main body is fixedly connected with the cleaning boxes, the outer side of the separation box is provided with an adaptive spring, the bottom of the adaptive spring is provided with a sliding ball, the separation box is fixedly connected with the adaptive spring, the adaptive spring is fixedly connected with the sliding ball, the dust removing fan is arranged in the cleaning box, a storage battery is arranged above the dust removing fan, the dust removing fan is in screw connection with the cleaning box, the storage battery is in screw connection with the cleaning box, a charging plug is arranged above the storage battery, a clamping channel is arranged above the main body, a collecting box is arranged on the inner side of the clamping channel, the main body is fixedly connected with the clamping channel, the clamping channel is movably connected with the collecting box, a water absorbing pad is arranged in the collecting box, a cover plate is arranged above the collecting box, a handle is arranged above the cover plate, the collecting box is movably connected with the cover plate, and the cover plate is movably connected with the handle, the utility model discloses a cleaning box, including handle, collecting box, clamping spring, connecting band, buckle, adsorption plate, pull-out rod, fixed knob, fixed ring, adsorption plate, fixed ring, fixed.

Preferably, the cleaning layer forms a sliding structure with the main body through the piston air rod, and a clamping structure is arranged between the cleaning layer and the placing plate.

Preferably, the collecting box and the cleaning box form a disassembly structure through a fixing bolt, and a parallel structure is arranged between the collecting box and the cleaning layer.

Preferably, the inner side of the separation box is of a net structure, the diameter of the meshes of the separation box is 1mm, and the separation box is in threaded connection with the cleaning box.

Preferably, the sliding ball and the cleaning box form an elastic structure through a adapting spring, and a nested structure is formed between the cleaning box and the separation box.

Preferably, the water absorption pad is tightly attached to the collection box, and the collection box forms a clamping structure with the clamping channel through the clamping block.

Preferably, the cover plate, the fixed knob and the collection box form a fixed structure, and the fixed knob and the collection box are movably connected.

Preferably, the connecting band is provided with two connecting bands which are symmetrical about a central axis of the main body, and the connecting band and the cleaning box form a detachable structure through a buckle.

Preferably, be adhesive connection between adsorption stone and the solid fixed ring, adsorption plate constitutes revolution mechanic through pull rod and clean box simultaneously.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the cleaning layer can be detached, so that the device can be conveniently cleaned, the time consumption for cleaning the device is reduced, the piston air rod can brake to push out the cleaning layer, the time consumption for taking out the cleaning layer for replacing and cleaning is reduced, the cleaning efficiency of the device is increased, the device can be better used, meanwhile, the falling collecting box is used, the falling dust can be collected when the device is used, the dust is prevented from being attached to clothes of teachers, the cleanliness of the teachers is improved, the accumulation of the dust on the ground is reduced, and the time consumption for cleaning classrooms is reduced.

2. According to the invention, through the arrangement of the separation box, the thread wadding generated when the cleaning layer is used can be separated, the thread wadding is prevented from entering the cleaning box, the possibility of the failure of the device is reduced, the use efficiency of the device is increased, the friction between the cleaning box and the blackboard can be reduced through the use of the sliding balls, the possibility of scratching the blackboard by the cleaning box is prevented, the abrasion of the cleaning box is reduced, the cost for maintaining and replacing the cleaning box is reduced, and the use effect of the device can be effectively enhanced.

3. According to the invention, through the arrangement of the collecting box, dust can be conveniently and effectively collected, the possibility that dust flies and damages a user when the device is used is prevented, air pollution is reduced, the teaching progress of a teacher can be effectively enhanced, and the water absorption pad is used, so that the leakage of the existing water tank type blackboard eraser in use can be prevented, the possibility that the device is damaged in use is prevented, the use effect of the device is improved, and the working efficiency of the device is effectively enhanced.

4. The invention prevents the possibility of moving the device when in use through the arrangement of the clamping spring and the clamping block, thereby preventing the possibility of generating a gap between the collecting box and the cleaning box, preventing dust from coming out of the device, reducing the possibility of failure of the device, reducing the possibility of moving the collecting box and the cover plate when in use through the use of the fixing knob, reducing the possibility of further preventing the dust from entering the device to leak, further increasing the use effect of the device, increasing the firmness of the device and the hand of an operator when in use through the use of the connecting belt, preventing the possibility of falling off of the device and the hand of the operator due to carelessness, reducing the possibility of recording and damaging the device when falling from a high place, reducing the time consumption and cost loss of decorating the device, and preventing the teaching progress from being influenced, the service life of the device is increased.

5. The fixing ring is arranged, so that the possibility of displacement between the adsorption plate and the cleaning box when the device is not used can be effectively prevented, the possibility of falling off and friction between the adsorption plate and the blackboard when the device is used is reduced, the possibility of failure of the device is reduced, the adsorption stone can be bonded with the blackboard when the device is not used, the device is prevented from falling off from a desktop, and the possibility of damage to the device is further reduced.

Drawings

FIG. 1 is a schematic top view of an eraser with a dust collecting function;

FIG. 2 is a schematic front view of an eraser with a dust collecting function;

FIG. 3 is a right side view of the cleaning box of the eraser with overall dust absorption function of the present invention;

FIG. 4 is a left side view of the eraser with overall dust absorption function showing the structure of the collecting box;

FIG. 5 is an enlarged schematic view of the eraser with overall dust absorption function shown in FIG. 1.

In the figure: 1. a main body; 2. a piston gas rod; 3. placing a plate; 4. a cleaning layer; 5. a sliding track; 6. a limiting plate; 7. a drop collection box; 8. fixing the bolt; 9. a cleaning box; 10. a separation box; 11. a compliant spring; 12. a sliding bead; 13. a dust removal fan; 14. a storage battery; 15. a charging plug; 16. blocking a channel; 17. a collection box; 18. a water absorbent pad; 19. a cover plate; 20. a handle; 21. fixing the knob; 22. a snap spring; 23. a clamping block; 24. a connecting ring; 25. a connecting belt; 26. buckling; 27. an adsorption plate; 28. pulling out the rod; 29. a fixing ring; 30. adsorbing the stone.

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. 1-5, the present invention provides a technical solution: a blackboard eraser with comprehensive dust absorption function comprises a main body 1, a piston air rod 2, a placing plate 3, a cleaning layer 4, a sliding channel 5, a limiting plate 6, a falling collection box 7, a fixing bolt 8, a cleaning box 9, a separation box 10, an adaptation spring 11, a sliding ball 12, a dust removal fan 13, a storage battery 14, a charging plug 15, a clamping channel 16, a collection box 17, a water absorption pad 18, a cover plate 19, a handle 20, a fixing knob 21, a clamping spring 22, a clamping block 23, a connecting ring 24, a connecting belt 25, a buckle 26, an adsorption plate 27, a pull-out rod 28, a fixing ring 29 and an adsorption stone 30, wherein the piston air rod 2 is arranged in the main body 1, the placing plate 3 is connected to the top of the piston air rod 2, the main body 1 is connected with the piston air rod 2 through a screw, the piston air rod 2 is connected with the placing plate 3 through a screw, the cleaning layer 4 is arranged above the placing plate 3, the sliding channel 5 is arranged below the main body 1, a limiting plate 6 is arranged on the inner side of the sliding channel 5, the sliding channel 5 is movably connected with the main body 1, the sliding channel 5 is movably connected with the limiting plate 6, a falling collection box 7 is arranged on the outer side of the sliding channel 5, fixing bolts 8 are arranged on two sides of the falling collection box 7, the falling collection box 7 is in threaded connection with the fixing bolts 8, the cleaning layer 4 forms a sliding structure with the main body 1 through a piston air rod 2, a clamping structure is arranged between the cleaning layer 4 and a placing plate 3, the limiting plate 6 is pulled upwards, then the cleaning layer 4 pushes the cleaning layer 4 out of the main body 1 under the action of the piston air rod 2, the device can be cleaned conveniently through the use of the detachable cleaning layer 4, the time consumption of cleaning the device is reduced, the cleaning layer 4 can be pushed out in a braking manner through the piston air rod 2, and the time consumption of taking out, replacing and cleaning of the cleaning layer 4 is reduced, the cleaning efficiency of the device is improved, the device can be better used, the cleaning boxes 9 are arranged on the left side and the right side of the main body 1, the separation boxes 10 are arranged at the bottoms of the cleaning boxes 9, the main body 1 is fixedly connected with the cleaning boxes 9, the collecting boxes 17 form a dismounting structure with the cleaning boxes 9 through the fixing bolts 8, the collecting boxes 17 and the cleaning layers 4 are in a parallel structure, the falling collecting boxes 7 can be used for collecting dust falling during the use of the device, the dust is prevented from being attached to clothes of teachers, the cleanliness of the teachers is improved, the accumulation of dust on the ground is reduced, the time consumption for cleaning classroom meshes is reduced, the inner sides of the separation boxes 10 are in a net-shaped structure, the diameter of the separation boxes 10 is 1mm, the separation boxes 10 are in threaded connection with the cleaning boxes 9, the separation boxes 10 are rotated clockwise, the separation boxes 10 and the cleaning boxes 9 are fixed, the thread wadding generated when the cleaning layer 4 is used can be separated by using the separation box 10, so that the thread wadding is prevented from entering the cleaning box 9, the possibility of the device failure is reduced, and the use efficiency of the device is increased;

an adaptive spring 11 is arranged at the outer side of a separation box 10, a sliding ball 12 is arranged at the bottom of the adaptive spring 11, the separation box 10 is fixedly connected with the adaptive spring 11, the adaptive spring 11 is fixedly connected with the sliding ball 12, the sliding ball 12 and a cleaning box 9 form an elastic structure through the adaptive spring 11, the cleaning box 9 and the separation box 10 are in a nested structure, the sliding ball 12 can move into a collection box 17 when the device is used, then the adaptive spring 11 is driven to contract, the friction between the cleaning box 9 and a blackboard can be reduced through the use of the sliding ball 12, the possibility that the cleaning box 9 scratches the blackboard is prevented, the abrasion of the cleaning box 9 is reduced, the cost for maintaining and replacing the cleaning box 9 is reduced, the using effect of the device can be effectively enhanced, a dust removing fan 13 is arranged in the cleaning box 9, and a storage battery 14 is arranged above the dust removing fan 13, the dust removing fan 13 is connected with the cleaning box 9 through screws, the storage battery 14 is connected with the cleaning box 9 through screws, the charging plug 15 is arranged above the storage battery 14, the clamping channel 16 is arranged above the main body 1, the collecting box 17 is arranged on the inner side of the clamping channel 16, the main body 1 is fixedly connected with the clamping channel 16, the clamping channel 16 is movably connected with the collecting box 17, the water absorbing pad 18 is arranged in the collecting box 17, the cover plate 19 is arranged above the collecting box 17, the lifting handle 20 is arranged above the cover plate 19, the collecting box 17 is movably connected with the cover plate 19, the cover plate 19 is movably connected with the lifting handle 20, the fixing knobs 21 are arranged on the left side and the right side of the lifting handle 20, the clamping spring 22 is fixed in the collecting box 17, the clamping block 23 is connected with the top end of the clamping spring 22, the water absorbing pad 18 is tightly attached to the collecting box 17, and the collecting box 17 forms a clamping structure with the clamping channel 16 through, through the use of the collecting box 17, dust can be conveniently and effectively collected, the possibility that dust flies and causes injury to users when the device is used is prevented, air pollution is reduced, the teaching progress of teachers can be effectively enhanced, in addition, the use of the water absorption pad 18 can prevent the leakage of the existing water tank type blackboard eraser in use, the possibility that the device is damaged in use is prevented, the use effect of the device is improved, the working efficiency of the device is effectively enhanced, the cover plate 19, the fixing knob 21 and the collecting box 17 form a fixing structure, the fixing knob 21 and the collecting box 17 are movably connected, the water absorption pad 18 full of water is put into the collecting box 17, then the cover plate 19 is covered, then the fixing knob 21 is rotated, the cover plate 19 and the collecting box 17 are fixed together, then the collecting box 17 is put into the card channel 16, then the collecting box 17 is fixed with the card channel 16 under the action of the clamping spring 22 and the clamping block 23, the possibility of movement of the device in use is prevented by using the clamping spring 22 and the clamping block 23, the possibility of a gap between the collecting box 17 and the cleaning box 9 is further prevented, the possibility of dust coming out of the device is prevented, the possibility of failure of the device is reduced, the possibility of movement between the collecting box 17 and the cover plate 19 in use is reduced by using the fixing knob 21, the possibility of leakage of dust entering the device is further prevented, the using effect of the device is further increased, the collecting box 17 is fixedly connected with the clamping spring 22, the clamping spring 22 is fixedly connected with the clamping block 23, the connecting ring 24 is arranged above the cleaning box 9, the connecting belt 25 is arranged outside the connecting ring 24, the buckle 26 is arranged at the top end of the connecting belt 25, the connecting band 25 is fixedly connected with the buckle 26, the two connecting bands 25 are arranged and are symmetrical about the central axis of the main body 1, the connecting band 25 and the cleaning box 9 form a disassembly structure through the buckle 26, the connecting band 25 is pulled rightwards, the buckle 26 is inserted into the clamping groove of the cleaning box 9 on the right side, the firmness of the device and the hand of an operator when the device is used can be increased through the use of the connecting band 25, the possibility that the device and the hand of the operator fall off due to carelessness is prevented, the possibility that the device falls from a high place and is recorded and damaged is reduced, the time consumption and the cost loss of the decoration device are reduced, the teaching progress is prevented from being influenced, the service life of the device is prolonged, the adsorption plate 27 is arranged on the outer side of the cleaning box 9, the pull-out rod 28 penetrates through the upper part of the adsorption plate 27, and the cleaning box 9 and the adsorption plate, the pull-out rod 28 is movably connected with the cleaning box 9, the fixing ring 29 is connected above the pull-out rod 28, the pull-out rod 28 is fixedly connected with the fixing ring 29, the adsorbing stone 30 is installed at the bottom of the adsorbing plate 27, the adsorbing stone 30 is in adhesive connection with the fixing ring 29, meanwhile, the adsorbing plate 27 forms a rotating structure with the cleaning box 9 through the pull-out rod 28, the fixing ring 29 is pulled outwards, the adsorbing plate 27 is rotated anticlockwise, the fixing ring 29 is pressed inwards to fix the adsorbing plate 27 with the cleaning and cleaning box 9, the possibility of displacement between the adsorbing plate 27 and the cleaning box 9 when the device is not used can be effectively prevented through the use of the fixing ring 29, the possibility of the adsorbing plate 27 falling off and friction between the adsorbing plate and the blackboard when the device is used is reduced, the possibility of failure of the device is reduced, and the adsorbing stone 30 can be adhered with the blackboard when the device is not used, the device is prevented from falling off the desktop, thereby reducing the possibility of damage to the device.

The working principle of the embodiment is as follows: the blackboard eraser with the comprehensive dust absorption function is characterized in that a water absorption pad 18 full of water is firstly placed into a collection box 17, then a cover plate 19 is covered, a fixing knob 21 is rotated to fix the cover plate 19 and the collection box 17 together, then the collection box 17 is placed into a clamping channel 16, then the collection box 17 and the clamping channel 16 are fixed together under the action of a clamping spring 22 and a clamping block 23, the possibility of movement of the blackboard eraser in use is prevented through the use of the clamping spring 22 and the clamping block 23, the possibility of a gap between the collection box 17 and a cleaning box 9 is further prevented, the possibility of dust coming out of the blackboard eraser is prevented, the possibility of failure of the blackboard eraser is reduced, then a connecting belt 25 is pulled rightwards, then the clamping block 26 is inserted into a clamping groove on the right side of the cleaning box 9, the firmness of the blackboard eraser with the hand of an operator in use can be improved through the use of the connecting belt 25, the possibility of falling off of the blackboard eraser and the hand of the operator due to, the possibility that the device falls from a high place to receive and record damage is reduced, the time consumption and the cost loss of decorating the device are reduced, the teaching progress is prevented from being influenced, the service life of the device is prolonged, the device is then in contact with a blackboard to be cleaned, the sliding ball 12 can move into the collecting box 17 when the device is used and then drives the adaptive spring 11 to contract, the friction between the cleaning box 9 and the blackboard can be reduced through the use of the sliding ball 12, the possibility that the cleaning box 9 scratches the blackboard is prevented, the abrasion of the cleaning box 9 is reduced, the cost for maintaining and replacing the cleaning box 9 is reduced, the using effect of the device can be effectively enhanced, the dust removing fan 13 operates at the same time, dust is sent into the collecting box 17, when the cleaning layer 4 needs to be replaced, the falling collecting box 7 is taken down through the fixing bolt 8, the falling collecting box 7 is used, and the falling dust can be collected when the device is used, on preventing that the dust from being infected with teacher's clothing, teacher's clean degree has been improved, and the piling up of subaerial dust has been reduced, then upwards stimulate limiting plate 6, then cleaning layer 4 is under the effect of piston gas pole 2, release main part 1 with cleaning layer 4, use through can dismantling cleaning layer 4 can be convenient clean the device, the clear time consumption of device has been reduced, and piston gas pole 2 can brake release cleaning layer 4, the clear time consumption of change is taken out to cleaning layer 4 has been reduced, the clear efficiency of device has been increased, make the use that the device can be better, this is exactly this the theory of operation of blackboard eraser with comprehensive dust absorption function.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an blackboard eraser with comprehensive dust absorption function, includes main part (1), clean layer (4), slide way (5) and dust removal fan (13), its characterized in that: the cleaning device is characterized in that a piston air rod (2) is arranged inside the main body (1), the top of the piston air rod (2) is connected with a placing plate (3), the main body (1) is connected with the piston air rod (2) through screws, the piston air rod (2) is connected with the placing plate (3) through screws, the cleaning layer (4) is arranged above the placing plate (3), the sliding channel (5) is arranged below the main body (1), a limiting plate (6) is arranged on the inner side of the sliding channel (5), the sliding channel (5) is movably connected with the main body (1), the sliding channel (5) is movably connected with the limiting plate (6), a falling collecting box (7) is arranged on the outer side of the sliding channel (5), fixing bolts (8) are arranged on two sides of the falling collecting box (7), the falling collecting box (7) is in threaded connection with the fixing bolts (8), cleaning boxes (9) are installed on the left side and the right side of the main body (1), a separation box (10) is arranged at the bottom of the cleaning box (9), the main body (1) and the cleaning boxes (9) are fixedly connected, an adaptation spring (11) is installed on the outer side of the separation box (10), sliding beads (12) are arranged at the bottom of the adaptation spring (11), the separation box (10) and the adaptation spring (11) are fixedly connected, the adaptation spring (11) and the sliding beads (12) are fixedly connected, the dust removing fan (13) is installed inside the cleaning box (9), a storage battery (14) is arranged above the dust removing fan (13), the dust removing fan (13) is connected with the cleaning boxes (9) through screws, the storage battery (14) is connected with the cleaning boxes (9) through screws, and a charging plug (15) is installed above the storage battery (14), a clamping channel (16) is arranged above the main body (1), a collecting box (17) is arranged on the inner side of the clamping channel (16), the main body (1) and the clamping channel (16) are fixedly connected, the clamping channel (16) and the collecting box (17) are movably connected, a water absorbing pad (18) is arranged inside the collecting box (17), a cover plate (19) is arranged above the collecting box (17), a lifting handle (20) is arranged above the cover plate (19), the collecting box (17) and the cover plate (19) are movably connected, the cover plate (19) and the lifting handle (20) are movably connected, fixing knobs (21) are arranged on the left side and the right side of the lifting handle (20), a clamping spring (22) is fixed inside the collecting box (17), a clamping block (23) is connected to the top end of the clamping spring (22), the collecting box (17) and the clamping spring (22) are fixedly connected, the clamping spring (22) is fixedly connected with the clamping block (23), the connecting ring (24) is installed above the cleaning box (9), the connecting belt (25) is arranged on the outer side of the connecting ring (24), the buckle (26) is installed at the top end of the connecting belt (25), the connecting belt (25) is fixedly connected with the buckle (26), the adsorption plate (27) is arranged on the outer side of the cleaning box (9), the pull-out rod (28) penetrates through the upper portion of the adsorption plate (27), the cleaning box (9) is movably connected with the adsorption plate (27), the pull-out rod (28) is movably connected with the cleaning box (9), the fixing ring (29) is connected with the upper portion of the pull-out rod (28), the pull-out rod (28) is fixedly connected with the fixing ring (29), and the adsorption stone (30) is installed at the bottom of the adsorption plate (27);

the water absorption pad (18) is tightly attached to the collection box (17), and the collection box (17) and the clamping channel (16) form a clamping structure through a clamping block (23);

the cover plate (19), the fixed knob (21) and the collection box (17) form a fixed structure, and the fixed knob (21) is movably connected with the collection box (17);

the two connecting belts (25) are symmetrical relative to the central axis of the main body (1), and the connecting belts (25) and the cleaning box (9) form a detachable structure through buckles (26);

the adsorption stone (30) and the fixing ring (29) are connected in an adhesion mode, and meanwhile the adsorption plate (27) and the cleaning box (9) form a rotating structure through the pull-out rod (28).

2. The blackboard eraser with comprehensive dust collection function according to claim 1, wherein: the cleaning layer (4) and the main body (1) form a sliding structure through the piston air rod (2), and a clamping structure is arranged between the cleaning layer (4) and the placing plate (3).

3. The blackboard eraser with comprehensive dust collection function according to claim 1, wherein: the collecting box (17) and the cleaning box (9) form a dismounting structure through a fixing bolt (8), and a parallel structure is arranged between the collecting box (17) and the cleaning layer (4).

4. The blackboard eraser with comprehensive dust collection function according to claim 1, wherein: the inner side of the separation box (10) is of a net structure, the diameter of the meshes of the separation box (10) is 1mm, and the separation box (10) is in threaded connection with the cleaning box (9).

5. The blackboard eraser with comprehensive dust collection function according to claim 1, wherein: the sliding balls (12) and the cleaning box (9) form an elastic structure through the adaptive spring (11), and a nested structure is formed between the cleaning box (9) and the separating box (10).