CN110091653A - A kind of the demonstration board auto-erasing device and its method for deleting of suitching type - Google Patents
A kind of the demonstration board auto-erasing device and its method for deleting of suitching type Download PDFInfo
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- CN110091653A CN110091653A CN201910355736.3A CN201910355736A CN110091653A CN 110091653 A CN110091653 A CN 110091653A CN 201910355736 A CN201910355736 A CN 201910355736A CN 110091653 A CN110091653 A CN 110091653A
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- erasing
- water
- blackboard eraser
- cam
- spray
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- 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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- 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
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- Cleaning In General (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses the demonstration board auto-erasing devices and its method for deleting of a kind of suitching type.The cooperation that part demonstration board needs that water, alcohol etc. is combined to assist erasing liquor is just able to achieve complete erasing.A kind of demonstration board auto-erasing device of suitching type of the present invention, including guide rail, erasing spray equipment and traversing driving assembly.Wiping spray equipment includes erasing frame, slipping block, switching shaft, switch motor, liquid storage bottle, water-main and spray brush assembly.The spray brush assembly shares n.N spray brush assembly is arranged successively along the length direction of switching shaft.Spray brush assembly includes blackboard eraser driving cam, water spray limitation cam, water-supply-pipe, mounting rod, reset spring, water lock bar, cam engagement block, holddown spring, blackboard eraser mounting blocks and outlet pipe.The present invention drives cam, water spray limitation cam by design multiple groups blackboard eraser, can be realized demonstration board and wipe switching between demonstration board selective erase completely, enables a user to be directed to demand and flexibly be wiped demonstration board.
Description
Technical field
The invention belongs to automatic blackboard cleaning technical fields, and in particular to a kind of demonstration board auto-erasing device of suitching type and
Its method for deleting.
Background technique
Common demonstration board blackboard eraser includes blackboard eraser and whiteboard eraser, has the disadvantages that 1, common blackboard eraser not only efficiency
Lowly, it and tends not to well wipe clean demonstration board.2, manual wipping is needed, when curricular advancement is more nervous
Often not many time wipes blackboard to teacher.3, part demonstration board needs that water, alcohol etc. is combined to assist matching for erasing liquor
Conjunction is just able to achieve complete erasing, but is intended to the function that blackboard eraser does not have output auxiliary liquid.
Summary of the invention
The purpose of the present invention is to provide the demonstration board auto-erasing devices and its method for deleting of a kind of suitching type
A kind of demonstration board auto-erasing device of suitching type of the present invention, including guide rail, erasing spray equipment and traversing driving
Component.Two guide rails are separately fixed at by the two sides of wiping board.The erasing spray equipment includes erasing frame, slipping block, switching
Shaft, switch motor, liquid storage bottle, water-main and spray brush assembly.The both ends of the erasing frame and two guide rails respectively constitute sliding
It is secondary.Erasing frame is driven by traversing driving assembly.The switching shaft support is wiping frame direction by the side of wiping board, and by cutting
Change motor driven.Liquid storage bottle is fixed on erasing frame.The water outlet of water-storing bottle and one end of water-main are connected by solenoid directional control valve
It connects.
The spray brush assembly shares n, 2≤n≤5.N spray brush assembly is successively arranged along the length direction of switching shaft
Column.The spray brush assembly include blackboard eraser driving cam, water spray limitation cam, water-supply-pipe, mounting rod, reset spring, water lock bar,
Cam engagement block, holddown spring, blackboard eraser mounting blocks and outlet pipe.The water spray limitation cam and blackboard eraser driving cam is fixed
In switching shaft.The first blackboard eraser salient point, the second blackboard eraser salient point and n blackboard eraser are provided on the working profile of blackboard eraser driving cam
Concave point.The first on-off concave point, the second on-off concave point and n on-off salient point are provided on the working profile of water spray limitation cam.
The mounting rod is each attached on erasing frame.Cam engagement block and mounting rod are constituted along by wiping board sliding pair.Peace
The end of dress bar is provided with limited block.Reset spring is nested on mounting rod, and both ends are respectively held against cam engagement block, limit
Block.Cam engagement block is connect with blackboard eraser mounting blocks by holddown spring.Blackboard eraser mounting blocks are provided with wiping far from the side of erasing frame
Except item.Cam engagement block is contacted with the working profile of blackboard eraser driving cam.
One end of the water-supply-pipe and water-main are connected far from that end of water-storing bottle, and the water inlet of the other end and outlet pipe connects
It connects.Outlet pipe is fixed on the side of blackboard eraser mounting blocks.Outlet pipe is equipped with multiple water outlets towards by the side of wiping board.Water lock bar is solid
It is scheduled on erasing frame, and is aligned with water spray limitation cam.Water-supply-pipe bypasses water lock bar.First blackboard eraser salient point of blackboard eraser driving cam
In the state of resisting cam engagement block, the first on-off concave point of water spray limitation cam is towards water lock bar.Blackboard eraser drives the of cam
In the state that two blackboard eraser salient points resist cam engagement block, the second on-off concave point of water spray limitation cam is towards water lock bar.
The first blackboard eraser salient point alignment of blackboard eraser driving cam in n spray brush assembly.Blackboard eraser drives cam in n spray brush assembly
The second blackboard eraser salient point be staggered along the circumferential direction of switching shaft.Any one blackboard eraser drives n blackboard eraser concave point and remaining n-1 on cam a
The second blackboard eraser salient point on blackboard eraser driving cam is aligned respectively.On any one water pipe on-off cam n on-off salient point and remaining
The second on-off concave point on n-1 water pipe on-off cam is aligned respectively.
Further, a kind of demonstration board auto-erasing device of suitching type of the present invention further includes limit assembly.The limit
Hyte part includes infrared sensor and isolation.The both ends of two infrared sensors and a wherein guide rail are fixed respectively.Triggering
Piece is fixed with erasing frame.Isolation is corresponding with the detector position of two infrared sensors.
Further, the traversing driving assembly includes transmission shaft, belt wheel, transmission belt and traversing motor.Two transmissions
Axis is supported on respectively by the both ends of wiping board.The both ends of four belt wheels and two transmission shafts are fixed respectively.It is same positioned at two transmission shafts
Two belt wheels of one end pass through a transmission band connection.Wherein a transmission shaft is by traversing motor driven.
Further, the spacing of the centre of gyration to the water lock bar of the water spray limitation cam subtracts twice of wall thickness of water-supply-pipe
Resulting value is equal to the centre of gyration of water spray limitation cam to the distance of n on-off salient point.
Further, the length direction of the switching shaft is parallel with by the short transverse of wiping board.
Further, the liquid storage bottle is provided with auxiliary erasing liquor.Erasing liquor is assisted to use clear water or cleaning solution.
Further, the scrubber bar is to be enclosed with the sponge of flannelette.
Further, the diameter of the outlet pipe upper water-out mouth is less than 0.5mm.
Further, the water-supply-pipe uses hose.
The demonstration board auto-erasing device and its method for deleting of the suitching type
Step 1: user selects complete erasing mode or selective erase mode as needed.If user's selection is complete
Erasing mode then enters step two.If user selects selective erase mode, three are entered step.
Step 2: by being wiped by all written traces on wiping board.
The rotation of 2-1. switch motor, the first blackboard eraser salient point that driving switching shaft turns to n blackboard eraser pressing cam are synchronous
The state of cam engagement block is resisted, is pushed down so that n blackboard eraser mounting blocks synchronize by wiping board, n root outlet pipe exports auxiliary outward and wipes
Except liquid.
2-2. traversing driving assembly driving erasing spray equipment is from traversing to the other end by one end of wiping board.By institute on wiping board
Some written traces are wiped free of.
The traversing driving assembly driving erasing spray equipment of 2-3. resets, and erasing terminates.
Step 3: erasing is by the part written trace on wiping board.
The one of region being vertically arranged on 3-1. user's selective erasing blackboard, the region are a block region.
The rotation of 3-2. switch motor, driving switching shaft turn to second of blackboard eraser pressing cam in a-th of spray brush assembly
Blackboard eraser salient point resists the state of cam engagement block, so that blackboard eraser mounting blocks are pushed down by wiping board in a-th of spray brush assembly；Remaining n-1
Scrubber bar in a spray brush assembly on blackboard eraser mounting blocks is not contacted with by wiping board, and one of on-off on water pipe on-off cam
Salient point resists corresponding water-supply-pipe.
3-3. solenoid directional control valve switches to the state that water-main is connect with liquid storage bottle, only outlet pipe in a-th of spray brush assembly
Output auxiliary erasing liquor outward.
3-4. traversing driving assembly driving erasing spray equipment is from traversing to the other end by one end of wiping board.By on wiping board
The written trace in a block region is wiped free of.
The traversing driving assembly driving erasing spray equipment of 3-5. resets, and erasing terminates.
The invention has the advantages that:
1, the present invention drives cam, water spray limitation cam by design multiple groups blackboard eraser, can be realized demonstration board and wipes completely
With the switching between demonstration board selective erase, enable a user to flexibly wipe demonstration board for demand.
2, the present invention realizes the region of output auxiliary erasing liquor by the cooperation between water-supply-pipe and water spray limitation cam
With the automatic cooperation in erasing region, avoiding auxiliary erasing liquor influences the written trace in non-erasing region.
3, the present invention can be realized the full-automatic erasing of demonstration board, and the time of user is greatly saved, improves demonstration
The service efficiency of plate.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the perspective view that spray equipment is wiped in the present invention；
Fig. 3 is the front schematic view that erasing spray equipment hides erasing frame in the present invention；
Fig. 4 be wiped in the present invention in spray equipment water spray limitation cam, blackboard eraser in three spray brush assemblies drive cam and
The assembling schematic diagram of switching shaft.
Specific embodiment
Below in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, a kind of demonstration board auto-erasing device of suitching type, including it is guide rail 1, erasing spray equipment, traversing
Driving assembly, limit assembly and controller.Two guide rails 1 being parallel to each other are separately fixed at by the two sides of wiping board 22.By wiping board
22 use blackboard or blank.
As illustrated in fig. 1 and 2, erasing spray equipment includes erasing frame 2, slipping block 3, switching shaft 4, switch motor 5, liquid storage
Bottle 6, water-main 7 and spray brush assembly.The both ends of erasing frame 2 are fixed respectively with two slipping blocks 3.Two slipping blocks 3 are led with two
Rail 1 respectively constitutes sliding pair.Traversing driving assembly includes transmission shaft 18, belt wheel 19, transmission belt 20 and traversing motor 21.Two biographies
Moving axis 18 is supported on respectively by the both ends of wiping board 22.The both ends of four belt wheels 19 and two transmission shafts 18 are fixed respectively.Positioned at two
By a connection of transmission belt 20, (i.e. it is two groups, same group that four belt wheels 19 are divided to two belt wheels 19 of 18 the same end of root transmission shaft
Belt wheel 19 is connected by a transmission belt 20).Traversing motor 21 is fixed with by wiping board 22 by support frame, and output shaft and wherein
One end of a piece transmission shaft 18 is fixed.
Limit assembly includes infrared sensor and isolation.Distinguish at the both ends of two infrared sensors and a wherein guide rail
It is fixed.Isolation and erasing frame 2 are fixed.Isolation is corresponding with the detector position of two infrared sensors.Work as infrared sensor
When detecting isolation, determine that erasing frame 2 reaches the limit of position.Therefore, two infrared sensors can limit erasing frame 2 respectively
Two extreme positions.
Switching shaft 4 is supported on erasing frame 2 towards by the side of wiping board 22.Switch the length direction of shaft 4 and by wiping board
Short transverse it is parallel.Switch motor 5 is fixed on erasing frame 2, and output shaft and one end of switching shaft 4 are fixed.Liquid storage bottle 6
It is fixed on the top of erasing frame 2.The water outlet of water-storing bottle and one end of water-main 7 are connected by solenoid directional control valve 23 and infusion pump
It connects.Liquid storage bottle 6 is provided with auxiliary erasing liquor.Erasing liquor is assisted to use clear water or cleaning solution.
As shown in Fig. 2,3 and 4, spray brush assembly altogether there are three.The length direction of three spray brush assemblies edge switching shafts 4 is successively
Arrangement.Spray brush assembly includes blackboard eraser driving cam 8, water spray limitation cam 9, water-supply-pipe 10, mounting rod 11, reset spring 12, lock
Water bar 13, cam engagement block 14, holddown spring 15, blackboard eraser mounting blocks 16 and outlet pipe 17.Water spray limitation cam 9 and blackboard eraser driving
Cam 8 is each attached in switching shaft 4.The first blackboard eraser salient point 12-1, second are provided on the working profile of blackboard eraser driving cam 8
Blackboard eraser salient point 12-2 and two blackboard eraser concave points.Water spray limitation cam 9 working profile on be provided with the first on-off concave point 11-1,
Second on-off concave point 11-2 and two on-off salient points.Blackboard eraser drives the first blackboard eraser salient point 12-1 and water spray limitation cam 9 of cam 8
The first on-off concave point 11-1 be staggered 180 ° along the circumferential direction of switching shaft.Blackboard eraser drives the second blackboard eraser salient point 12-2 and the spray of cam 8
Second on-off concave point 11-2 of water limitation cam 9 is staggered 180 °.
Mounting rod 11 is each attached on erasing frame 2.Cam engagement block 14 and mounting rod 11 constitute edge by wiping board 22 along normal direction
Measure the sliding pair of direction sliding.The outer end of mounting rod 11 is provided with limited block.Reset spring 12 is nested on mounting rod 11, and two
End is respectively held against cam engagement block 14, limited block.Reset spring 12 makes cam engagement block 14 be against blackboard eraser driving cam 8 always
On.Cam engagement block 14 is connect with blackboard eraser mounting blocks 16 by holddown spring 15.Side of the blackboard eraser mounting blocks 16 far from erasing frame 2
It is provided with scrubber bar.Scrubber bar is to be enclosed with the sponge of flannelette.Cam engagement block 14 and the working profile of blackboard eraser driving cam 8 connect
Touching.When blackboard eraser driving cam 8 on the first salient point or the second salient point overturn to contact cam engagement block 14 when, blackboard eraser mounting blocks 16
On scrubber bar contacted with by wiping board 22, i.e., the blackboard eraser mounting blocks 16 slide when can wipe by the written trace on wiping board 22.
One end of water-supply-pipe 10 is connect with water-main 7 far from that end of water-storing bottle, the water inlet of the other end and outlet pipe 17
Connection.Outlet pipe 17 and the side of blackboard eraser mounting blocks 16 are fixed.Outlet pipe 17 is equipped with multiple water outlets towards by the side of wiping board 22
Mouthful.The diameter of 17 upper water-out mouth of outlet pipe is less than 0.5mm.Water-supply-pipe 10 uses hose.Water lock bar 13 is fixed on erasing frame 2,
And it is aligned with water spray limitation cam 9.Water-supply-pipe 10 bypasses water lock bar 13.The centre of gyration of water spray limitation cam 9 is to water lock bar 13
Spacing subtract twice of wall thickness resulting value of water-supply-pipe 10 and be equal to the centre of gyration of water spray limitation cam 9 to two on-off salient points
Distance.The first salient point or the second salient point on water spray limitation cam 9 are overturn to water lock bar 13, water spray limitation cam 9
Water-supply-pipe 10 is squeezed with water lock bar 13, so that water-supply-pipe 10 ends, liquid can not be passed through.Due to water lock bar 13 and blackboard eraser mounting blocks
16 are located at the two sides of switching shaft, therefore when the first blackboard eraser salient point 12-1 of blackboard eraser driving cam 8 resists cam engagement block 14,
First on-off concave point 11-1 of water spray limitation cam 9 is towards corresponding water lock bar 13.
Successively head and the tail dock blackboard eraser mounting blocks 16 in three spray brush assemblies, so that not by all positions on wiping board 22
Trace can be wiped free of.The first blackboard eraser salient point 12-1 alignment of blackboard eraser driving cam 8 in three spray brush assemblies.Three spray wiping groups
The second blackboard eraser salient point 12-2 of blackboard eraser driving cam 8 staggers successively 90 ° in part.Any one blackboard eraser drives two plates on cam 8
Concave point is wiped to be aligned respectively with the second blackboard eraser salient point 12-2 on other two blackboard eraser driving cam 8.Any one water pipe on-off is convex
Two on-off salient points are taken turns to be aligned respectively with the second on-off concave point 11-2 on other two water pipe on-off cam.
The the first blackboard eraser salient point 12-1 for spraying blackboard eraser driving cam 8 in brush assembly due to three is aligned.Therefore pass through rotation switching
Shaft 4 enables to the first blackboard eraser salient point 12-1 of three blackboard eraser pressing cams to synchronize and resists blackboard eraser mounting blocks 16, and three sprays
The first on-off concave point 11-1 on water limitation cam 9 is respectively facing erasing 2 datum level of frame.Three blackboard eraser mounting blocks 16 are synchronized and are pushed down
By wiping board 22.Output assists erasing liquor to three water-supply-pipes 10 outward.At this point, the erasing sliding of frame 2 can synchronize erasing by wiping board 22
On all written traces.
The the second blackboard eraser salient point 12-2 for spraying blackboard eraser driving cam 8 in brush assembly due to three is staggered.Therefore synchronization is extremely
There is the second blackboard eraser salient point 12-2 of a blackboard eraser pressing cam to resist blackboard eraser mounting blocks 16, and corresponding water spray limits cam 9 more
On the second on-off concave point 11-2 towards erasing 2 datum level of frame.Corresponding blackboard eraser mounting blocks 16 are pushed down by wiping board 22.It is corresponding defeated
Output assists erasing liquor to water pipe 10 outward.At this point, erasing frame 2 sliding can only wipe by wiping board 22 with the blackboard eraser mounting blocks 16
The written trace of alignment.As it can be seen that may make different blackboard eraser mounting blocks 16 to resist by wiping board 22 by rotation switching shaft 4,
It realizes by the selective erase of each position on wiping board 22.
Switch motor, traversing motor, the motor in infusion pump are connect with controller by motor drive component.Two red
The signal output interface of outer sensor and two signal input interfaces of control are separately connected.Controller uses single-chip microcontroller.
The demonstration board auto-erasing device and its method for deleting of the suitching type
Step 1: user selects complete erasing mode or selective erase mode as needed.If user's selection is complete
Erasing mode then enters step two.If user selects selective erase mode, three are entered step.
Step 2: by being wiped by all written traces on wiping board 22.
2-1. switch motor 5 rotates, and driving switching shaft 4 turns to the first blackboard eraser salient point of three blackboard eraser pressing cams
12-1 synchronizes the state for resisting cam engagement block 14, so that three blackboard eraser mounting blocks 16 are synchronized and pushed down by wiping board 22.Electromagnetic switch
The state that Vavle switching is connect to water-main 7 with liquid storage bottle 6, output assists erasing liquor to three outlet pipes 17 outward.
2-2. traversing driving assembly driving erasing spray equipment is from (passing through limit to the other end by one end of wiping board 22 is traversing
Component is positioned).It is wiped free of by written trace all on wiping board 22.
The traversing driving assembly driving erasing spray equipment of 2-3. resets (being positioned by limit assembly), and erasing terminates.
Step 3: erasing is by the part written trace on wiping board 22.
The one of region being vertically arranged on 3-1. user's selective erasing blackboard, the region are a block region.
3-2. switch motor 5 rotates, and driving switching shaft 4 turns to the of the pressing cam of blackboard eraser in a-th of spray brush assembly
Two blackboard eraser salient point 12-2 resist the state of cam engagement block 14, so that blackboard eraser mounting blocks 16 are pushed down and wiped in a-th of spray brush assembly
Plate 22；Scrubber bar in other two spray brush assembly on blackboard eraser mounting blocks 16 is not contacted with by wiping board, and on water pipe on-off cam
One of on-off salient point resist corresponding water-supply-pipe (keeping it turned off).
3-3. solenoid directional control valve switches to the state that water-main 7 is connect with liquid storage bottle 6, only water outlet in a-th of spray brush assembly
Output assists erasing liquor to pipe 17 outward.
3-4. traversing driving assembly driving erasing spray equipment is from traversing to the other end by one end of wiping board 22.By wiping board 22
The written trace in upper a block region is wiped free of.
The traversing driving assembly driving erasing spray equipment of 3-5. resets, and erasing terminates.
Claims (10)
1. a kind of demonstration board auto-erasing device of suitching type, including guide rail, erasing spray equipment and traversing driving assembly；It is special
Sign is: two guide rails are separately fixed at by the two sides of wiping board；The erasing spray equipment includes erasing frame, slipping block, cuts
Change shaft, switch motor, liquid storage bottle, water-main and spray brush assembly；The both ends of the erasing frame and two guide rails respectively constitute cunning
Dynamic pair；Erasing frame is driven by traversing driving assembly；The switching shaft support is wiping frame direction by the side of wiping board, and by
Switch motor driving；Liquid storage bottle is fixed on erasing frame；The water outlet of water-storing bottle and one end of water-main pass through solenoid directional control valve
Connection；
The spray brush assembly shares n, 2≤n≤5；N spray brush assembly is arranged successively along the length direction of switching shaft；Institute
The spray brush assembly stated includes blackboard eraser driving cam, water spray limitation cam, water-supply-pipe, mounting rod, reset spring, water lock bar, cam
Coordinating block, holddown spring, blackboard eraser mounting blocks and outlet pipe；The water spray limitation cam and blackboard eraser driving cam is each attached to and cuts
It changes in shaft；It is recessed that the first blackboard eraser salient point, the second blackboard eraser salient point and n blackboard eraser are provided on the working profile of blackboard eraser driving cam
Point；The first on-off concave point, the second on-off concave point and n on-off salient point are provided on the working profile of water spray limitation cam；
The mounting rod is each attached on erasing frame；Cam engagement block and mounting rod are constituted along by wiping board sliding pair；Mounting rod
End be provided with limited block；Reset spring is nested on mounting rod, and both ends are respectively held against cam engagement block, limited block；It is convex
Wheel coordinating block is connect with blackboard eraser mounting blocks by holddown spring；Blackboard eraser mounting blocks are provided with scrubber bar far from the side of erasing frame；
Cam engagement block is contacted with the working profile of blackboard eraser driving cam；
One end of the water-supply-pipe and water-main are connected far from that end of water-storing bottle, and the water inlet of the other end and outlet pipe connects；
Outlet pipe is fixed on the side of blackboard eraser mounting blocks；Outlet pipe is equipped with multiple water outlets towards by the side of wiping board；Water lock bar is fixed
It is aligned on erasing frame, and with water spray limitation cam；Water-supply-pipe bypasses water lock bar；First blackboard eraser salient point of blackboard eraser driving cam supports
Firmly in the state of cam engagement block, the first on-off concave point of water spray limitation cam is towards water lock bar；Blackboard eraser drives the second of cam
In the state that blackboard eraser salient point resists cam engagement block, the second on-off concave point of water spray limitation cam is towards water lock bar；
The first blackboard eraser salient point alignment of blackboard eraser driving cam in n spray brush assembly；The of blackboard eraser driving cam in n spray brush assembly
Two blackboard eraser salient points are staggered along the circumferential direction of switching shaft；Any one blackboard eraser drives n blackboard eraser concave point and remaining n-1 blackboard eraser on cam
The second blackboard eraser salient point on driving cam is aligned respectively；N on-off salient point and remaining n-1 are a on any one water pipe on-off cam
The second on-off concave point on water pipe on-off cam is aligned respectively.
2. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: further include limit
Component；The limit assembly includes infrared sensor and isolation；The both ends of two infrared sensors and a wherein guide rail
It fixes respectively；Isolation is fixed with erasing frame；Isolation is corresponding with the detector position of two infrared sensors.
3. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: described is traversing
Driving assembly includes transmission shaft, belt wheel, transmission belt and traversing motor；Two transmission shafts are supported on respectively by the both ends of wiping board；Four
The both ends of a belt wheel and two transmission shafts are fixed respectively；Two belt wheels positioned at two transmission shaft the same ends pass through a transmission belt
Connection；Wherein a transmission shaft is by traversing motor driven.
4. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: the water spray limit
Twice of wall thickness resulting value that the spacing of the centre of gyration of cam processed to water lock bar subtracts water-supply-pipe is equal to returning for water spray limitation cam
Turn center to n on-off salient point distance.
5. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: the switching turns
The length direction of axis is parallel with by the short transverse of wiping board.
6. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: the liquid storage
Bottle is provided with auxiliary erasing liquor；Erasing liquor is assisted to use clear water or cleaning solution.
7. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: the erasing
Item is the sponge for being enclosed with flannelette.
8. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: the outlet pipe
The diameter of upper water-out mouth is less than 0.5mm.
9. a kind of demonstration board auto-erasing device of suitching type according to claim 1, it is characterised in that: the water delivery
Pipe uses hose.
10. a kind of method for deleting of the demonstration board auto-erasing device of suitching type as described in claim 1, it is characterised in that:
Step 1: user selects complete erasing mode or selective erase mode as needed；If user selects complete erasing mode,
Then enter step two；If user selects selective erase mode, three are entered step；
Step 2: by being wiped by all written traces on wiping board；
The rotation of 2-1. switch motor, the first blackboard eraser salient point that driving switching shaft turns to n blackboard eraser pressing cam, which synchronizes, to be resisted
The state of cam engagement block is pushed down so that n blackboard eraser mounting blocks synchronize by wiping board, and n root outlet pipe exports auxiliary erasing liquor outward；
2-2. traversing driving assembly driving erasing spray equipment is from traversing to the other end by one end of wiping board；By all on wiping board
Written trace is wiped free of；
The traversing driving assembly driving erasing spray equipment of 2-3. resets, and erasing terminates；
Step 3: erasing is by the part written trace on wiping board；
The one of region being vertically arranged on 3-1. user's selective erasing blackboard, the region are a block region；
The rotation of 3-2. switch motor, driving switching shaft turn to the second blackboard eraser of blackboard eraser pressing cam in a-th of spray brush assembly
Salient point resists the state of cam engagement block, so that blackboard eraser mounting blocks are pushed down by wiping board in a-th of spray brush assembly；Remaining n-1 spray
Scrubber bar in brush assembly on blackboard eraser mounting blocks is not contacted with by wiping board, and one of on-off salient point on water pipe on-off cam
Resist corresponding water-supply-pipe；
3-3. solenoid directional control valve switches to the state that water-main is connect with liquid storage bottle, and only outlet pipe is outside in a-th of spray brush assembly
Output auxiliary erasing liquor；
3-4. traversing driving assembly driving erasing spray equipment is from traversing to the other end by one end of wiping board；By a block on wiping board
The written trace in region is wiped free of；
The traversing driving assembly driving erasing spray equipment of 3-5. resets, and erasing terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355736.3A CN110091653B (en) | 2019-04-29 | 2019-04-29 | Switching type demonstration board automatic erasing device and erasing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910355736.3A CN110091653B (en) | 2019-04-29 | 2019-04-29 | Switching type demonstration board automatic erasing device and erasing method thereof |
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| Publication Number | Publication Date |
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| CN110091653A true CN110091653A (en) | 2019-08-06 |
| CN110091653B CN110091653B (en) | 2020-07-14 |
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| CN201910355736.3A Active CN110091653B (en) | 2019-04-29 | 2019-04-29 | Switching type demonstration board automatic erasing device and erasing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112223941A (en) * | 2020-10-15 | 2021-01-15 | 杭州师范大学钱江学院 | Dust cleaning and absorbing type blackboard eraser and using method thereof |
| CN113085421A (en) * | 2021-04-23 | 2021-07-09 | 方龙生 | Teaching blackboard cleaning machine and teaching device equipped with same |
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| CN113085421B (en) * | 2021-04-23 | 2022-03-18 | 方龙生 | Teaching blackboard cleaning machine and teaching device equipped with same |
| CN114771130A (en) * | 2022-05-05 | 2022-07-22 | 威海海洋职业学院 | Blackboard is used in teaching with automatically, clean function |
| CN114771130B (en) * | 2022-05-05 | 2023-08-25 | 威海海洋职业学院 | Blackboard with automatic wiping function for teaching |
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