CN107952712A - A kind of blackboard eraser descaling machine - Google Patents
A kind of blackboard eraser descaling machine Download PDFInfo
- Publication number
- CN107952712A CN107952712A CN201711155322.3A CN201711155322A CN107952712A CN 107952712 A CN107952712 A CN 107952712A CN 201711155322 A CN201711155322 A CN 201711155322A CN 107952712 A CN107952712 A CN 107952712A
- Authority
- CN
- China
- Prior art keywords
- blackboard eraser
- unit
- fixed frame
- driving unit
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000002347 injection Methods 0.000 claims description 13
- 239000007924 injection Substances 0.000 claims description 13
- 238000000889 atomisation Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 238000013517 stratification Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 2
- 238000009434 installation Methods 0.000 claims 2
- 230000036541 health Effects 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
A kind of blackboard eraser descaling machine, including upper cover, babinet, base, blackboard eraser fixation kit, cleaning assembly and power supply module, the upper cover, babinet, base are sequentially connected with from top to bottom, described blackboard eraser fixation kit one end is arranged on the base center, the cleaning assembly is separately positioned on the opposite madial wall of the babinet, and the power supply module is connected with the blackboard eraser fixation kit and cleaning assembly respectively by circuit.The present invention is small; by by the vertical placement of blackboard eraser; blackboard eraser is taken to different treatment region by main shaft rotation to clear up; space is saved to greatest extent, compared to other blackboard eraser descaling machines, using each more convenient; it is capable of the dust of quick, simple and direct, convenient cleaning blackboard eraser; help teacher to save time in classroom, improve teaching efficiency, while the health of teacher and classmate can be protected.
Description
Technical field
The present invention relates to a kind of blackboard eraser descaling machine.
Background technology
Although some present advanced teaching means widely use in teaching, even if being used for advanced religion
Learn to do the school of section, have many courses still from not blackboard and chalk, and many mathematics schools still with traditional blackboard and
Chalk is main teaching method, and present blackboard eraser used it is several it is lower after, be just stained with chalk powder, be further continued for using erasing the board
Effect just becomes very poor, influences teaching efficiency, it is necessary to constantly clear up blackboard eraser.And traditional manner of cleaning up is exactly to be clapped with hand
Beat, dust, the serious health that have impact on teacher and classmates are arrived in easily breathing.
Although also someone devises blackboard eraser cleaning plant, as the automatic blackboard eraser of application number 201510105908.3 is cleared up
Machine, but it is most of sufficiently bulky, take up space more, effect is unsatisfactory in actual use, it is therefore desirable to Yi Zhong little
Ingeniously, blackboard eraser cleaning plant easy to use.
The content of the invention
In order to effectively solve the above problems, the present invention provides a kind of blackboard eraser descaling machine.
Technical scheme is as follows：
A kind of blackboard eraser descaling machine, including upper cover, babinet, base, blackboard eraser fixation kit, cleaning assembly and power supply module, institute
State upper cover, babinet, base to be sequentially connected with from top to bottom, described blackboard eraser fixation kit one end is arranged on the base center, described
Cleaning assembly is separately positioned on the opposite madial wall of the babinet, and the power supply module is consolidated with the blackboard eraser respectively by circuit
Determine component to connect with cleaning assembly.
Further, the blackboard eraser fixation kit includes：Decelerating motor, fixed frame, the first contact-making switch, timing unit,
Unit and conducting rod are launched, the decelerating motor is arranged on the center of the base and the reducing motor output shaft is upward, institute
The output axis connection of fixed frame and the decelerating motor is stated, the decelerating motor can drive the fixed frame to rotate, the fixation
Frame includes a bottom plate, and the bottom plate is arranged vertically, and the bottom plate both sides and bottom are respectively arranged with baffle, the baffle with it is described
Bottom plate angle is at an acute angle, and the bottom flap upper surface is provided with the first contact-making switch, timing unit and ejection unit, and described the
One contact-making switch is also connected with power supply module and timing unit by connection, the timing unit with the ejection unit respectively
Connecing, the conducting rod is arranged on below the fixed frame, and the conducting rod direction is parallel with the direction of the bottom plate centre normal,
Described conducting rod one end is fixedly connected with the fixed frame, and the conducting rod end is conducting end, remaining position is insulating end, institute
Stating in conducting rod sets a conductor wire to be connected with power supply module.
Further, the cleaning assembly includes：Fixed frame, ash disposal unit and injection unit, the ash disposal unit, injection
Unit is separately positioned on babinet on a fixed frame of side wall, the fixed frame includes：Installing plate, connecting rod, conductive trough, it is described
Installing plate end face has a mounting groove, and input contact and output contact are equipped with the mounting groove, for install ash disposal unit and
Injection unit simultaneously provides power supply, and the installing plate other end is fixedly connected by connecting rod with the babinet, the conductive trough
It is arranged on below the installing plate, the conduction well width is identical with the installing plate, the slot structure transverse cutting of the conductive trough
Face is arranged to arc, and the conductive trough coordinates with the conducting rod, and the conductive trough passes through the input in live wire and mounting groove
Contact portion.
Further, the ash disposal unit includes：First substrate, slide, mobile station, support arm, brush roll, the first driving
Unit, the second driving unit, the 3rd driving unit and microcontroller, the first substrate is equipped with matches somebody with somebody with the fixed frame mounting groove
The contact of conjunction, the slide are vertically provided at the first substrate end face, and the mobile station is equipped with the slide, described
Mobile station can move on the slide, and the mobile station both sides set a support arm, the support arm and the movement respectively
Platform junction is provided with resetting spring, and described support arm one end is connected with the mobile station, and the support arm other end sets institute
Brush roll is stated, first driving unit, the second driving unit, the 3rd driving unit are arranged in first mobile station,
First driving unit, the second driving unit, the 3rd driving unit are all provided with being connected with the microcontroller, and the microcontroller is used for
Control the first driving unit, the second driving unit, the action of the 3rd driving unit, first driving unit and the support arm one
End connection is connected by driving member with the support arm, and second driving unit is connected or passes through transmission with the brush roll
Part is connected with the brush roll, and the 3rd actuator is used to drive the mobile station to move.
Further, the injection unit includes：Second substrate, water tank, air pump and high-pressure atomization nozzle, described second
Substrate is equipped with the contact coordinated with the fixed frame mounting groove, and the water tank and air pump are arranged on the second substrate,
Multiple high-pressure atomization nozzles are connected by water pipe with the bottom of storage tank, have at the top of the water tank filler and
One blow vent, one lidstock of the filler, the blow vent are connected with the air pump.
Further, the upper cover sets a rectangle slot hole.
Further, the base center is equipped with the mounting hole for being used for installing decelerating motor, the spindle mounting hole both sides
One barrier is set respectively, and the susceptor surface is outwards evenly arranged with leakage hole from barrier, is located at the leakage in the base
Dust stratification groove is equipped with below hole.
Further, the power supply module includes the first power supply and second source, and first power supply is distinguished by circuit
With the first contact-making switch and decelerating motor composition circuit, the conduction that the output terminal of second source passes through conducting rod described in connection
End, the input of the second source terminate the input contact of each fixed frame.
The present invention is small, and by by the vertical placement of blackboard eraser, being rotated by main shaft, to take blackboard eraser to different treatment region clear
Reason, saves space to greatest extent,, can be quick, simple and direct, square using each more convenient compared to other blackboard eraser descaling machines
Just the dust of cleaning blackboard eraser, helps teacher to save time in classroom, improves teaching efficiency, while can protect teacher and classmate
Health.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of the present invention；
Fig. 2 is the overlooking the structure diagram of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is explained in further detail.It should be appreciated that specific embodiment described herein is only used for explaining the present invention, not
For limiting the present invention.
On the contrary, the present invention covers any replacement done in the spirit and scope of the present invention being defined by the claims, repaiies
Change, equivalent method and scheme.Further, in order to make the public have a better understanding the present invention, below to the thin of the present invention
It is detailed to describe some specific detail sections in section description.
A kind of blackboard eraser descaling machine as shown in Figs. 1-2, including upper cover 1, babinet 2, base 3, blackboard eraser fixation kit 4, cleaning
Component 5 and power supply module, the upper cover 1, babinet 2, base 3 are sequentially connected with from top to bottom, and described 4 one end of blackboard eraser fixation kit is set
Put at 3 center of base, the cleaning assembly 5 is separately positioned on the opposite madial wall of the babinet 2, the power supply module
It is connected respectively with the blackboard eraser fixation kit 4 and cleaning assembly 5 by circuit.
The blackboard eraser fixation kit 4 includes：Decelerating motor 41, fixed frame 42, the first contact-making switch 43, timing unit 44,
Unit 45 and conducting rod 46 are launched, the decelerating motor 41 is arranged on the center of the base 3 and the decelerating motor 41 exports
In axial direction, the output axis connection of the fixed frame 42 and the decelerating motor 41, the decelerating motor 41 can drive the fixation
Frame 42 rotates, and the fixed frame 42 includes a bottom plate, and the bottom plate is arranged vertically, and the bottom plate both sides and bottom are respectively arranged with
Baffle, the baffle and the bottom plate angle are at an acute angle, for fixing blackboard eraser, prevent blackboard eraser from departing from, the bottom flap upper table
Face be provided with the first contact-making switch 43, timing unit 44 and ejection unit 45, first contact-making switch 43 respectively with power supply group
Part and timing unit 44 are also connected by connection, the timing unit 44 with the ejection unit 45, when blackboard eraser is put into admittedly
When determining frame 42, the first contact-making switch 43 is pushed down in blackboard eraser bottom, passes the signal along to power supply module and starts to drive decelerating motor 41 to transport
Dynamic, timing unit 44 starts timing, and timing unit 44 can preset the time, and after timing, control ejection unit 45 will
Blackboard eraser is upspring certain distance, blackboard eraser is departed from the first contact-making switch 43, the conducting rod 46 is arranged under the fixed frame 42
Side, 46 direction of conducting rod is parallel with the direction of the bottom plate centre normal, described 46 one end of conducting rod and the fixed frame
42 are fixedly connected, and 46 end of conducting rod is conducting end 461, remaining position is insulating end, and one is set in the conducting rod 46
Conductor wire is connected with power supply module.
The cleaning assembly 5 includes：Fixed frame 51, ash disposal unit 52 and injection unit 53, the ash disposal unit 52, injection
Unit 53 is separately positioned on babinet 2 on a fixed frame 51 of side wall, the fixed frame 51 includes：Installing plate 511, connecting rod
512nd, conductive trough 513,511 end face of installing plate have mounting groove, and input contact is equipped with the mounting groove and output is touched
Point, for installing ash disposal unit 52 and injection unit 53 and providing power supply, the input contact/output contact may be provided at described
Optional position in mounting groove, can adjust accordingly according to the component of cooperation, and 511 other end of installing plate passes through connecting rod
512 are fixedly connected with the babinet 2, and the conductive trough 513 is arranged on the lower section of installing plate 511,513 width of conductive trough
Identical with the installing plate 511, since the movement locus at 46 tip of conducting rod is arc-shaped, the slot structure of the conductive trough 513 is horizontal
Arc is arranged to section, the conductive trough 513 coordinates with the conducting rod 46, and the conductive trough 513 passes through live wire and peace
Input contact portion in tankage.
The ash disposal unit 52 includes：First substrate 521, slide 522, mobile station 523, support arm 524, brush roll 525,
First driving unit, the second driving unit, the 3rd driving unit and microcontroller, the first substrate 521 be equipped with it is described solid
Determine the contact of 51 mounting groove of frame cooperation, the slide 522 is vertically provided at 521 end face of first substrate, the mobile station 523
It is equipped with the slide 522, the mobile station 523 can move on the slide 522,523 both sides of mobile station point
One support arm 524 is not set, and the support arm 524 is provided with resetting spring, the support arm with 523 junction of mobile station
524 one end are connected with the mobile station 523, and 524 other end of support arm sets the brush roll 525, first driving
Unit, the second driving unit, the 3rd driving unit are arranged in first mobile station 523, first driving unit,
Two driving units, the 3rd driving unit are all provided with being connected with the microcontroller, and the microcontroller is used to control the first driving unit, the
Two driving units, the action of the 3rd driving unit, first driving unit are connected or pass through transmission with described 524 one end of support arm
Part is connected with the support arm 524, for controlling the support arm 524 to be swung in the mobile station 523, second driving
Unit is connected with the brush roll 525 or is connected by driving member with the brush roll 525, for driving the brush roll 525
Rotate, the 3rd actuator is used to drive the mobile station 523 to move.
The injection unit 53 includes：Second substrate 531, water tank 532, air pump 533 and high-pressure atomization nozzle 534, institute
State second substrate 531 and be equipped with the contact coordinated with 51 mounting groove of fixed frame, the water tank 532 and air pump 533 are set
On the second substrate 531, multiple high-pressure atomization nozzles 534 are connected by water pipe with 532 bottom of water tank, institute
Stating the top of water tank 532 has a filler and a blow vent, one lidstock of the filler, the blow vent with it is described
Air pump 533 connects.
The upper cover 1 sets a rectangle slot hole, for being put into blackboard eraser and stirring fixed frame 42.
3 center of base is equipped with the mounting hole for being used for installing decelerating motor 41, and the spindle mounting hole both sides are set respectively
A barrier 31 is put, 3 surface of base is outwards evenly arranged with leakage hole 32 from barrier 31, is located in the base 3 described
The lower section of leakage hole 32 is equipped with dust stratification groove 33, and the barrier 31 is used to obstruct chalk dust and water enters main shaft 41.
The power supply module includes the first power supply and second source, and first power supply is contacted with first respectively by circuit
Switch 43 and decelerating motor 41 form circuit, the conducting end that the output terminal of second source passes through conducting rod described in connection 46
461, the input of the second source terminates the input contact of each fixed frame 51.
Operation principle, blackboard eraser is put into fixed frame 42 from the rectangle slot hole of upper cover 1, and the first contact of blackboard eraser pressure is opened
43 are closed, timing unit 44 starts timing, and decelerating motor 41 starts to act at the same time, and timing time is set as that fixed frame 42 rotates 180 °
The required time, when fixed frame 51 of the fixed frame 42 close to ash disposal unit 52, the conductive trough of conducting rod 46 and the fixed frame 51
513 contacts, are powered to the cleaning element on the fixed frame 51 and are handled, and fixed frame 42 continues to rotate and repeats aforesaid operations warp
The fixed frame 51 with injection unit 53 is crossed, frame 42 to be fixed marches to babinet opposite side, and Timer Controlling ejection unit 45 will
Blackboard eraser is upspring to be departed from the first osculating element, and a cleaning cycle terminates, and fixed frame is reversed initial position manually.
The present invention is small, and by by the vertical placement of blackboard eraser, being rotated by main shaft, to take blackboard eraser to different treatment region clear
Reason, saves space to greatest extent,, can be quick, simple and direct, square using each more convenient compared to other blackboard eraser descaling machines
Just the dust of cleaning blackboard eraser, helps teacher to save time in classroom, improves teaching efficiency, while can protect teacher and classmate
Health.
Claims (8)
- A kind of 1. blackboard eraser descaling machine, it is characterised in that including upper cover (1), babinet (2), base (3), blackboard eraser fixation kit (4), Cleaning assembly (5) and power supply module, the upper cover (1), babinet (2), base (3) are sequentially connected with from top to bottom, and the blackboard eraser is consolidated Determine component (4) one end and be arranged on the base (3) center, it is opposite that the cleaning assembly (5) is separately positioned on the babinet (2) On madial wall, the power supply module is connected with the blackboard eraser fixation kit (4) and cleaning assembly (5) respectively by circuit.
- 2. blackboard eraser descaling machine according to claim 1, it is characterised in that the blackboard eraser fixation kit (4) includes：Slow down electricity Machine (41), fixed frame (42), the first contact-making switch (43), timing unit (44), ejection unit (45) and conducting rod (46), it is described Decelerating motor (41) is arranged on the center of the base (3) and the decelerating motor (41) output shaft is upward, the fixed frame (42) with the output axis connection of the decelerating motor (41), the decelerating motor (41) fixed frame (42) can be driven to rotate, The fixed frame (42) includes a bottom plate, and the bottom plate is arranged vertically, and the bottom plate both sides and bottom are respectively arranged with baffle, institute State baffle and the bottom plate angle is at an acute angle, the bottom flap upper surface is provided with the first contact-making switch (43), timing unit (44) connected respectively with power supply module and timing unit (44) by circuit with ejection unit (45), first contact-making switch (43) Connect, the timing unit (44) is also connected with the ejection unit (45), and the conducting rod (46) is arranged on the fixed frame (42) lower section, conducting rod (46) direction is parallel with the direction of the bottom plate centre normal, described conducting rod (46) one end and The fixed frame (42) is fixedly connected, and conducting rod (46) end is conducting end (461), remaining position is insulating end, described A conductor wire is set to be connected with power supply module in conducting rod (46).
- 3. blackboard eraser descaling machine according to claim 2, it is characterised in that the cleaning assembly (5) includes：Fixed frame (51), ash disposal unit (52) and injection unit (53), the ash disposal unit (52), injection unit (53) are separately positioned on babinet (2) on a fixed frame (51) for side wall, the fixed frame (51) includes：Installing plate (511), connecting rod (512), conductive trough (513), installing plate (511) end face has mounting groove, is equipped with input contact and output contact in the mounting groove, is used for Installation ash disposal unit (52) and injection unit (53) simultaneously provide power supply, and installing plate (511) other end passes through connecting rod (512) it is fixedly connected with the babinet (2), the conductive trough (513) is arranged on below the installing plate (511), the conduction Groove (513) width is identical with the installing plate (511), and the slot structure lateral cross section of the conductive trough (513) is arranged to arc, institute State conductive trough (513) with the conducting rod (46) to coordinate, the conductive trough (513) is touched by live wire and the input in mounting groove Point connection.
- 4. blackboard eraser descaling machine according to claim 3, it is characterised in that the ash disposal unit (52) includes：First substrate (521), slide (522), mobile station (523), support arm (524), brush roll (525), the first driving unit, the second driving are single Member, the 3rd driving unit and microcontroller, the first substrate (521) is equipped with touches with what the fixed frame (51) mounting groove coordinated Point, the slide (522) are vertically provided at the first substrate (521) end face, the mobile station (523) and the slide (522) it is equipped with, the mobile station (523) can move on the slide (522), mobile station (523) the both sides difference One support arm (524) is set, and the support arm (524) is provided with resetting spring, the branch with the mobile station (523) junction Brace (524) one end is connected with the mobile station (523), and support arm (524) other end sets the brush roll (525), First driving unit, the second driving unit, the 3rd driving unit are arranged on first mobile station (523), described First driving unit, the second driving unit, the 3rd driving unit are all provided with being connected with the microcontroller, and the microcontroller is used to control First driving unit, the second driving unit, the action of the 3rd driving unit, first driving unit and the support arm (524) One end connects or is connected by driving member with the support arm (524), and second driving unit connects with the brush roll (525) Connect or be connected by driving member with the brush roll (525), the 3rd actuator is used to drive the mobile station (523) to transport It is dynamic.
- 5. blackboard eraser descaling machine according to claim 3, it is characterised in that the injection unit (53) includes：Second substrate (531), water tank (532), air pump (533) and high-pressure atomization nozzle (534), the second substrate (531) be equipped with it is described The contact that fixed frame (51) mounting groove coordinates, the water tank (532) and air pump (533) are arranged on the second substrate (531) On, multiple high-pressure atomization nozzles (534) are connected by water pipe with the water tank (532) bottom, the water tank (532) Top has a filler and a blow vent, one lidstock of the filler, and the blow vent connects with the air pump (533) Connect.
- 6. blackboard eraser descaling machine according to claim 1, it is characterised in that the upper cover (1) sets a rectangle slot hole.
- 7. blackboard eraser descaling machine according to claim 2, it is characterised in that base (3) center is equipped with to be subtracted for installation The mounting hole of speed motor (41), the spindle mounting hole both sides set a barrier (31) respectively, and base (3) surface is from resistance Retaining wall (31) is outwards evenly arranged with leakage hole (32), and dust stratification groove is equipped with below the leakage hole (32) in the base (3) (33)。
- 8. blackboard eraser descaling machine according to claim 3, it is characterised in that the power supply module includes the first power supply and second Power supply, first power supply form circuit, the second electricity with the first contact-making switch (43) and decelerating motor (41) respectively by circuit The output terminal in source is each solid by the conducting ends (461) of conducting rod described in connection (46), the input termination of the second source Determine the input contact of frame (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711155322.3A CN107952712A (en) | 2017-11-20 | 2017-11-20 | A kind of blackboard eraser descaling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711155322.3A CN107952712A (en) | 2017-11-20 | 2017-11-20 | A kind of blackboard eraser descaling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107952712A true CN107952712A (en) | 2018-04-24 |
Family
ID=61964719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711155322.3A Pending CN107952712A (en) | 2017-11-20 | 2017-11-20 | A kind of blackboard eraser descaling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107952712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731927A (en) * | 2021-09-30 | 2021-12-03 | 石家庄科达教育装备有限公司 | Blackboard eraser cleaning method |
| CN114850084A (en) * | 2022-03-14 | 2022-08-05 | 淮阴工学院 | Desktop formula intelligence blackboard eraser belt cleaning device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209984A (en) * | 1997-06-06 | 1999-03-10 | 真空吸尘器公司 | Carpet extractor with automatic conversion |
| CN204194328U (en) * | 2014-11-05 | 2015-03-11 | 李桂花 | Blackboard eraser dedusting cleaner |
| CN107214114A (en) * | 2017-06-29 | 2017-09-29 | 嘉兴学院 | A kind of cleaning device of blackboard eraser |
-
2017
- 2017-11-20 CN CN201711155322.3A patent/CN107952712A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209984A (en) * | 1997-06-06 | 1999-03-10 | 真空吸尘器公司 | Carpet extractor with automatic conversion |
| CN204194328U (en) * | 2014-11-05 | 2015-03-11 | 李桂花 | Blackboard eraser dedusting cleaner |
| CN107214114A (en) * | 2017-06-29 | 2017-09-29 | 嘉兴学院 | A kind of cleaning device of blackboard eraser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731927A (en) * | 2021-09-30 | 2021-12-03 | 石家庄科达教育装备有限公司 | Blackboard eraser cleaning method |
| CN114850084A (en) * | 2022-03-14 | 2022-08-05 | 淮阴工学院 | Desktop formula intelligence blackboard eraser belt cleaning device |
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Application publication date: 20180424 |