CN109501496A - Middle school's blackboard cleaning device - Google Patents
Middle school's blackboard cleaning device Download PDFInfo
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- CN109501496A CN109501496A CN201910049673.9A CN201910049673A CN109501496A CN 109501496 A CN109501496 A CN 109501496A CN 201910049673 A CN201910049673 A CN 201910049673A CN 109501496 A CN109501496 A CN 109501496A
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- cleaning device
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- 238000004140 cleaning Methods 0.000 title claims abstract description 73
- 229920000742 Cotton Polymers 0.000 claims description 62
- 230000000694 effects Effects 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims 1
- 230000007812 deficiency Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 6
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 206010035653 pneumoconiosis Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 206010016654 Fibrosis Diseases 0.000 description 1
- 201000010001 Silicosis Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004761 fibrosis Effects 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/04—Wiper holders
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
Middle school's blackboard cleaning device of the present invention, belong to teaching aid technical field, in view of the deficiencies of the prior art, the present invention provides a kind of middle school blackboard cleaning devices of cleaning easy to disassemble and adjustable cleaning device height, the scheme of use includes blackboard body, the upper end of blackboard body offers sliding way, the roll inside of sliding way is connected with top sheave, it is internal on the outside of top sheave that guide rod is connected with by ball bearing rotational, the lower end of guide rod is fixedly connected with lower sheave, the lower end outside of blackboard body offers guide groove, the inside of guide groove offers glide path, the present invention is suitable for educational aid field.
Description
Technical field
Middle school's blackboard cleaning device of the present invention, belongs to teaching aid technical field.
Background technique
Blackboard is not the plate face for refering in particular to black, says that it is the plane that can use chalk repeated writing in traditional sense,
Plate face is hard, is chiefly used in imparting knowledge to students.Blackboard is generally used made of plank or ground glass etc., can specifically write material with chalk etc.
Material writes above.Mostly black, blackish green, white or ecru.
Existing wiping blackboard structure is simple, and when erasing the board, dust is bigger, influences the health of teachers and students, so than
It is relatively disagreeable, and blackboard eraser not can be carried out cleaning after use, and for a long time using causing dust cumulative, long-term sucking is high
Concentration dust can produce adverse effect, wherein the most serious is pneumoconiosis.Since pneumoconiosis fibrosis lesion has progressive and irreversible
The characteristics of property, so far, effective treatment method is found at still end, therefore pneumoconiosis (especially silicosis) seriously affects labourer's
Labour capacity and service life.And blackboard that middle school uses is relatively high in the prior art, the person's handwriting in the relatively high some corners of blackboard
It is difficult to wipe.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of middle school cleanings easy to disassemble and adjustable cleaning device
The blackboard cleaning device of height.
To realize above-mentioned dustless erasing chalk writings, cleaning easy to disassemble and adjustable cleaning device height purpose, this hair
Bright to provide the following technical solutions: the upper end of middle school's blackboard cleaning device, including blackboard body, the blackboard body offers
Slideway, the roll inside of the sliding way are connected with top sheave, and inside passes through ball bearing rotational and connects on the outside of the top sheave
There is guide rod, the lower end of the guide rod is fixedly connected with lower sheave, and the lower end outside of the blackboard body offers guide groove,
The inside of the guide groove offers glide path, and the roll inside of glide path is connected with lower sheave, the outside of the guide rod
Cleaning substructure is slidably connected, the inside of the cleaning substructure offers pilot hole, and pilot hole is slidably connected with guide rod, institute
The side wall fixation for stating cleaning substructure is connected to buffer spring repeatedly, and the side of the buffer spring is fixedly connected with fixed plate, described
The inside of fixed plate offers fixing groove, and the internal activity of the fixing groove is connected with cleaner plate, and the front of the cleaner plate is opened
Equipped with the first engaging slot and the second engaging slot, the lower end of first engaging slot and the second engaging slot is fixedly connected to limit
Plate, the internal activity of first engaging slot are connected with xerotripsis cotton, and the internal activity of second engaging slot is connected with wet rubbing cotton,
And xerotripsis cotton is flexibly connected with limit plate with the lower end of wet rubbing cotton, and xerotripsis cotton and wet rubbing cotton with the outer surface of blackboard body
It is flexibly connected, the lower end of the cleaner plate is fixedly connected with inserted block, and the right side opening of the inserted block is equipped with spring cavity, the spring cavity
Inside be fixedly connected with adjustable spring, the end of the adjustable spring is fixedly connected with clamping block, the side wall of the fixed plate
Limit hole is offered, and limit hole is connected together with clamping block, sub-mount is slidably connected on the outside of the guide rod, and auxiliary
Pedestal is helped to be slidably connected also by pilot hole and guide rod, the inside of the sub-mount offers accommodating groove, the auxiliary bottom
The upper end of seat is fixedly connected with swivel nut, and the internal whorl of the swivel nut is connected with telescopic sleeving rod, and telescopic sleeving rod is movably connected in
The inside of accommodating groove, the upper end of the telescopic sleeving rod is fixedly connected with shaft, and shaft is fixedly connected on the lower end of cleaning substructure,
And shaft and cleaning substructure are rotatablely connected.
The technical program is advanced optimized, the guide rod is equipped with two, and corresponding top sheave and lower sheave are equipped with
Two.
The technical program is advanced optimized, the left end upper half of the guide groove corresponds to lower sheave and offers arc groove, and
The diameter of arc groove is 1.3 times bigger than the wheel footpath of lower sheave, and there are two arc groove sets.
The technical program is advanced optimized, the inside two sides of the fixing groove offer sliding slot, the two sides of the cleaner plate
Equipped with sliding block, and cleaner plate is slidably connected at the inside of fixing groove by sliding slot and sliding block.
The technical program is advanced optimized, the inside two sides of first engaging slot and the second engaging slot are fixedly connected to
The two sides of T-block, the xerotripsis cotton and wet rubbing cotton offer T-slot, and T-slot is connected together with T-block.
The technical program is advanced optimized, the outside of the xerotripsis cotton and wet rubbing cotton offers U-type groove.
The technical program is advanced optimized, the telescopic sleeving rod is set as three sections, and every section telescopic sleeving rod passes through limit button
It carries out Telescopic Fixed.
The technical program is advanced optimized, the lower end of the telescopic sleeving rod is fixedly connected with limited block, the telescopic sleeving rod
Side wall be fixedly connected with hexagonal spiral shell block.
The technical program is advanced optimized, the side wall of the cleaner plate and the side wall of sub-mount are fixedly connected to handle
Hand.
Compared with prior art, the present invention provides a kind of middle school's blackboard cleaning device, have it is following the utility model has the advantages that
1, middle school's blackboard cleaning device, by xerotripsis cotton and wet rubbing cotton, in the chalk writings on erasing blackboard by wet
Wipe cotton and carry out first of wiping process because containing moisture be inside wet rubbing cotton it is moist, dust is avoided when being wiped
Fly upward, it is therefore prevented that dust is inhaled into human body and does harm to huamn body to form disease when original blackboard eraser wipes, and wet rubbing cotton rub is wiped
It is wiped afterwards by xerotripsis cotton rub, accelerate the air-dried speed on blackboard surface while also improving the cleannes of wiping.
2, middle school's blackboard cleaning device passes through cleaning substructure, fixing groove, cleaner plate, the first engaging slot, the second engaging
Cleaner plate can be unloaded easily using the sliding block and sliding slot of fixing groove two sides, be unloaded by slot, sliding block, sliding slot, T-block and T-slot
Xerotripsis cotton and wet rubbing cotton are extracted out again from T-block after lower and cleaned, the cleaning to cleaning device is facilitated, avoids dust
It saves bit by bit excessively, influences to leave a trace after wiping blackboard again.
3, middle school's blackboard cleaning device, by sub-mount, accommodating groove, swivel nut, telescopic sleeving rod and shaft, utilization is auxiliary
It helps the telescopic sleeving rod of pedestal upper end that can fix the height of cleaning substructure, then drives cleaning substructure to blackboard by sub-mount
On person's handwriting be purged, it is therefore prevented that the problem of corner of eminence can not wipe on blackboard, when not can also be by telescopic
Bar is packed up through the screw thread rotation of lower half into inside accommodating groove, is saved space, is easy to use.
Detailed description of the invention
Fig. 1 is blackboard cleaning device structural schematic diagram in middle school's of the present invention；
Fig. 2 is blackboard cleaning device cleaning substructure sectional view in middle school's of the present invention；
Fig. 3 is blackboard cleaning device cleaning substructure exploded view in middle school's of the present invention；
Fig. 4 is blackboard cleaning device cleaning substructure cross-sectional view in middle school's of the present invention；
Fig. 5 is blackboard cleaning device cleaning substructure main view in middle school's of the present invention；
Fig. 6 is blackboard cleaning device sub-mount cross-sectional view in middle school's of the present invention；
Fig. 7 is the portion middle school's blackboard cleaning device A of the present invention enlarged drawing.
In figure: 1, blackboard body；2, sliding way；3, top sheave；4, guide rod；5, lower sheave；6, guide groove；7, it glides
Road；8, cleaning substructure；9, pilot hole；10, buffer spring；11, fixed plate；12, fixing groove；13, cleaner plate；14, the first engaging
Slot；15, the second engaging slot；16, limit plate；17, xerotripsis cotton；18, wet rubbing cotton；19, inserted block；20, spring cavity；21, adjustable spring；
22, clamping block；23, limit hole；24, sub-mount；25, accommodating groove；26, swivel nut；27, telescopic sleeving rod；28, shaft；29, circular arc
Slot；30, sliding slot；31, sliding block；32, T-block；33, T-slot；34, limited block；35, hexagonal spiral shell block；36, handle.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-7, a kind of middle school's blackboard cleaning device, including blackboard body 1, the upper end of blackboard body 1 is please referred to open up
There is sliding way 2, the roll inside of sliding way 2 is connected with top sheave 3, and 3 outside of top sheave is internal to be connected by ball bearing rotational
There is guide rod 4, the lower end of guide rod 4 is fixedly connected with lower sheave 5, and the lower end outside of blackboard body 1 offers guide groove 6, leads
Glide path 7 is offered to the inside of slot 6, and the roll inside of glide path 7 is connected with lower sheave 5, the outer Slideslip of guide rod 4 connects
It is connected to cleaning substructure 8, the inside of cleaning substructure 8 offers pilot hole 9, and pilot hole 9 is slidably connected with guide rod 4, cleans bottom
The side wall fixation of seat 8 is connected to buffer spring 10 repeatedly, and the side of buffer spring 10 is fixedly connected with fixed plate 11, fixed plate 11
Inside offers fixing groove 12, and the internal activity of fixing groove 12 is connected with cleaner plate 13, and the front of cleaner plate 13 offers first
The lower end of engaging slot 14 and the second engaging slot 15, the first engaging slot 14 and the second engaging slot 15 is fixedly connected to limit plate 16,
The internal activity of first engaging slot 14 is connected with xerotripsis cotton 17, and the internal activity of the second engaging slot 15 is connected with wet rubbing cotton 18, and
Xerotripsis cotton 17 is flexibly connected with limit plate 16 with the lower end of wet rubbing cotton 18, and xerotripsis cotton 17 and wet rubbing cotton 18 are and blackboard body
1 outer surface is flexibly connected, and the lower end of cleaner plate 13 is fixedly connected with inserted block 19, and the right side opening of inserted block 19 is equipped with spring cavity 20,
The inside of spring cavity 20 is fixedly connected with adjustable spring 21, and the end of adjustable spring 21 is fixedly connected with clamping block 22, fixed plate
11 side wall offers limit hole 23, and limit hole 23 is connected together with clamping block 22, and the outside of guide rod 4 slidably connects auxiliary
Pedestal 24 is helped, and sub-mount 24 is slidably connected also by pilot hole 9 and guide rod 4, the inside of sub-mount 24 offers receipts
Receive slot 25, the upper end of sub-mount 24 is fixedly connected with swivel nut 26, and the internal whorl of swivel nut 26 is connected with telescopic sleeving rod 27, stretches
Loop bar 27 includes motion bar and casing, and one end of motion bar is located inside pipe casing, by pulling motion bar, makes it in inside pipe casing
Size constantly change to realize flexible, and telescopic sleeving rod 27 is movably connected in the inside of accommodating groove 25, telescopic sleeving rod 27
Upper end is fixedly connected with shaft 28, and shaft 28 is fixedly connected on the lower end of cleaning substructure 8, and shaft 28 with 8 turns of cleaning substructure
Dynamic connection.
Specifically, guide rod 4 is equipped with two, and there are two corresponding top sheave 3 and lower sheave 5 be all provided with, be conducive to reinforce
The structure of cleaning device.
Specifically, the left end upper half of guide groove 6, which corresponds to lower sheave 5, offers arc groove 29, and the diameter of arc groove 29
It is 1.3 times bigger than the wheel footpath of lower sheave 5, and there are two arc groove 29 sets, be conducive to the disassembly of device entirety.
Specifically, the inside two sides of fixing groove 12 offer sliding slot 30, the two sides of cleaner plate 13 are equipped with sliding block 31, and clean
Plate 13 is slidably connected at the inside of fixing groove 12 by sliding slot 30 and sliding block 31, is conducive to install cleaner plate 13.
Specifically, the inside two sides of the first engaging slot 14 and the second engaging slot 15 are fixedly connected to T-block 32, xerotripsis cotton
17 and the two sides of wet rubbing cotton 18 offer T-slot 33, and T-slot 33 is connected together with T-block 32, is conducive to xerotripsis cotton 17
It is dismantled with wet rubbing cotton 18.
Specifically, the outside of xerotripsis cotton 17 and wet rubbing cotton 18 offers U-type groove, be conducive to the cleannes for improving wiping.
Specifically, telescopic sleeving rod 27 is set as three sections, and every section telescopic sleeving rod 27 is carried out Telescopic Fixed by limit button, is had
It is Telescopic Fixed conducive to being carried out to telescopic sleeving rod 27.
Specifically, the lower end of telescopic sleeving rod 27 is fixedly connected with limited block 34, the side wall of telescopic sleeving rod 27 is fixedly connected with
Hexagonal spiral shell block 35, is conducive to rotary extension loop bar 27.
Specifically, the side wall of the side wall of cleaner plate 13 and sub-mount 24 is fixedly connected to handle 36, it is convenient to device
The operation of ontology.
When in use, cleaning substructure 8 can be made to move up and down using guide rod 4 to be wiped, by top sheave 3 and glided
Wheel 5 can make guide rod 4 and cleaning substructure 8 move left and right and be wiped, and pass through wet rubbing in the chalk writings on erasing blackboard
Cotton 18 carries out first of wiping process because containing moisture be inside wet rubbing cotton 18 it is moist, powder is avoided when being wiped
Dirt is flown upward, it is therefore prevented that dust is inhaled into human body and does harm to huamn body to form disease when original blackboard eraser wipes, wet rubbing cotton 18
It is wiped after wiping by xerotripsis cotton 17, accelerates the air-dried speed on blackboard surface while also improving the cleannes of wiping, if
Not wipe clean, can pressing fixed plate 11 gently, so that xerotripsis cotton 17 and wet rubbing cotton 18 is more bonded blackboard, increase xerotripsis cotton
Frictional force between 17 and wet rubbing cotton 18, thus more effectively to be cleaned to blackboard, 18 side of xerotripsis cotton 17 and wet rubbing cotton
Efficiency of U-type groove when can be improved wiping, clean blackboard more；It can using the sliding block 31 and sliding slot 30 of 12 two sides of fixing groove
Easily to unload cleaner plate 13, xerotripsis cotton 17 and wet rubbing cotton 18 are extracted out again from T-block 32 after unloading and cleaned, side
Cleaning to cleaning device, avoid dust and save bit by bit excessively, influence to leave a trace after wiping blackboard again, after the completion of cleaning
Cleaner plate 13 is installed back inside fixing groove 12 again, the clamping block 22 of 13 bottom of cleaner plate is fastened on limit by adjustable spring 21
The inside in hole 23 prevents cleaner plate 13 from can generate displacement in operation, can be with using the telescopic sleeving rod 27 of 24 upper end of sub-mount
The height of fixed cleaning substructure 8, then drives cleaning substructure 8 to be purged the person's handwriting on blackboard by sub-mount 24, prevents
The problem of having stopped the corner of eminence on blackboard can not wipe when not can also pack up telescopic sleeving rod 27 by lower half
Screw thread rotation saves space into inside accommodating groove 25, is easy to use.
In conclusion middle school's blackboard cleaning device, the powder by xerotripsis cotton 17 and wet rubbing cotton 18, on erasing blackboard
First of wiping process is carried out by wet rubbing cotton 18 when person's handwriting because containing moisture be inside wet rubbing cotton 18 it is moist, into
Flying upward for dust is avoided when row erasing, it is therefore prevented that dust is inhaled into human body and does harm to huamn body shape when original blackboard eraser wipes
At disease, wet rubbing cotton 18 is wiped after wiping by xerotripsis cotton 17, is accelerated the air-dried speed on blackboard surface while also being improved
The cleannes of wiping；Pass through cleaning substructure 8, fixing groove 12, cleaner plate 13, the first engaging slot 14, the second engaging slot 15, sliding block
31, sliding slot 30, T-block 32 and T-slot 33, can be easily by cleaner plate using the sliding block 31 and sliding slot 30 of 12 two sides of fixing groove
13 unload, and again extract xerotripsis cotton 17 and wet rubbing cotton 18 out from T-block 32 after unloading and clean, facilitate to cleaning device
Cleaning avoids dust and saves bit by bit excessively, influences to leave a trace after wiping blackboard again；Pass through sub-mount 24, accommodating groove 25, spiral shell
Set 26, telescopic sleeving rod 27 and shaft 28, the height of cleaning substructure 8 can be fixed using the telescopic sleeving rod 27 of 24 upper end of sub-mount
It is low, then drive cleaning substructure 8 to be purged the person's handwriting on blackboard by sub-mount 24, it is therefore prevented that the angle of eminence on blackboard
The problem of can not wiping is fallen, telescopic sleeving rod 27 can also be packed up when not through the screw thread rotation of lower half into accommodating groove 25
Inside saves space, is easy to use.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. middle school's blackboard cleaning device, including blackboard body (1), it is characterised in that: the upper end of the blackboard body (1) opens up
Have sliding way (2), the roll inside of the sliding way (2) is connected with top sheave (3), internal on the outside of the top sheave (3) to pass through
Ball bearing rotational is connected with guide rod (4), and the lower end of the guide rod (4) is fixedly connected with lower sheave (5), the blackboard sheet
The lower end outside of body (1) offers guide groove (6), and the inside of the guide groove (6) offers glide path (7), and glide path (7)
Roll inside be connected with lower sheave (5), slidably connected cleaning substructure (8) on the outside of the guide rod (4), the cleaning bottom
The inside of seat (8) offers pilot hole (9), and pilot hole (9) is slidably connected with guide rod (4), the side of the cleaning substructure (8)
Wall fixation is connected to buffer spring (10) repeatedly, and the side of the buffer spring (10) is fixedly connected with fixed plate (11), described solid
The inside of fixed board (11) offers fixing groove (12), and the internal activity of the fixing groove (12) is connected with cleaner plate (13), described
The front of cleaner plate (13) offers the first engaging slot (14) and the second engaging slot (15), first engaging slot (14) and second
The lower end of engaging slot (15) is fixedly connected to limit plate (16), and the internal activity of first engaging slot (14) is connected with xerotripsis
The internal activity of cotton (17), second engaging slot (15) is connected with wet rubbing cotton (18), and xerotripsis cotton (17) and wet rubbing cotton (18)
Lower end be flexibly connected with limit plate (16), and xerotripsis cotton (17) and the outer surface of wet rubbing cotton (18) with blackboard body (1)
It is flexibly connected, the lower end of the cleaner plate (13) is fixedly connected with inserted block (19), and the right side opening of the inserted block (19) is equipped with spring
The inside of chamber (20), the spring cavity (20) is fixedly connected with adjustable spring (21), and the end of the adjustable spring (21) is fixed
It is connected with clamping block (22), the side wall of the fixed plate (11) offers limit hole (23), and limit hole (23) and clamping block
(22) it is connected together, is slidably connected sub-mount (24) on the outside of the guide rod (4), and sub-mount (24) is also by leading
It is slidably connected to hole (9) and guide rod (4), the inside of the sub-mount (24) offers accommodating groove (25), the auxiliary bottom
The upper end of seat (24) is fixedly connected with swivel nut (26), and the internal whorl of the swivel nut (26) is connected with telescopic sleeving rod (27), and stretches
Contracting loop bar (27) is movably connected in the inside of accommodating groove (25), and the upper end of the telescopic sleeving rod (27) is fixedly connected with shaft
(28), and shaft (28) is fixedly connected on the lower ends of cleaning substructure (8), and shaft (28) and cleaning substructure (8) are rotatablely connected.
2. middle school's blackboard cleaning device according to claim 1, it is characterised in that: the guide rod (4) is equipped with two,
And there are two corresponding top sheave (3) and lower sheave (5) be all provided with.
3. middle school's blackboard cleaning device according to claim 1, it is characterised in that: on the left end of the guide groove (6)
Half portion corresponds to lower sheave (5) and offers arc groove (29), and the diameter of arc groove (29) is 1.3 times bigger than the wheel footpath of lower sheave (5),
And there are two arc groove (29) sets.
4. middle school's blackboard cleaning device according to claim 1, it is characterised in that: the inside two of the fixing groove (12)
Side offers sliding slot (30), and the two sides of the cleaner plate (13) are equipped with sliding block (31), and cleaner plate (13) by sliding slot (30) with
Sliding block (31) is slidably connected at the inside of fixing groove (12).
5. middle school's blackboard cleaning device according to claim 1, it is characterised in that: first engaging slot (14) and the
The inside two sides of two engaging slots (15) are fixedly connected to T-block (32), the two sides of the xerotripsis cotton (17) and wet rubbing cotton (18)
It offers T-slot (33), and T-slot (33) is connected together with T-block (32).
6. middle school's blackboard cleaning device according to claim 1, it is characterised in that: the xerotripsis cotton (17) and wet rubbing cotton
(18) outside offers U-type groove.
7. middle school's blackboard cleaning device according to claim 1, it is characterised in that: the telescopic sleeving rod (27) is set as three
Section, and every section telescopic sleeving rod (27) carried out by limit button it is Telescopic Fixed.
8. middle school's blackboard cleaning device according to claim 1, it is characterised in that: the lower end of the telescopic sleeving rod (27)
It is fixedly connected with limited block (34), the side wall of the telescopic sleeving rod (27) is fixedly connected with hexagonal spiral shell block (35).
9. middle school's blackboard cleaning device according to claim 1, it is characterised in that: the side wall of the cleaner plate (13) with
The side wall of sub-mount (24) is fixedly connected to handle (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049673.9A CN109501496B (en) | 2019-01-18 | 2019-01-18 | Blackboard cleaning device for middle school |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049673.9A CN109501496B (en) | 2019-01-18 | 2019-01-18 | Blackboard cleaning device for middle school |
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| Publication Number | Publication Date |
|---|---|
| CN109501496A true CN109501496A (en) | 2019-03-22 |
| CN109501496B CN109501496B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910049673.9A Active CN109501496B (en) | 2019-01-18 | 2019-01-18 | Blackboard cleaning device for middle school |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561685A (en) * | 2021-06-30 | 2021-10-29 | 深圳市欣盛电子科技有限公司 | Electric eraser dust collection all-in-one machine with guiding function |
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| US6944904B1 (en) * | 2003-08-11 | 2005-09-20 | Gaylord A Williams | Chalkboard cleaning apparatus with a fluid reservoir |
| CN201073882Y (en) * | 2007-04-13 | 2008-06-18 | 谢雪 | Blackboard eraser |
| CN202147521U (en) * | 2011-08-08 | 2012-02-22 | 王诗淇 | Convenient blackboard eraser system |
| CN103909774A (en) * | 2013-12-17 | 2014-07-09 | 苏州奥然日用品有限公司 | Novel quick erased blackboard |
| CN204801323U (en) * | 2015-07-08 | 2015-11-25 | 张显民 | Blackboard is used in teaching |
| CN207128458U (en) * | 2017-04-10 | 2018-03-23 | 成都师范学院 | A kind of teaching aid with Telescopic |
| CN209505300U (en) * | 2019-01-18 | 2019-10-18 | 杨晨曦 | A kind of middle school's blackboard cleaning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113561685A (en) * | 2021-06-30 | 2021-10-29 | 深圳市欣盛电子科技有限公司 | Electric eraser dust collection all-in-one machine with guiding function |
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