CN107443971A - A kind of blackboard main cartridge with portable chalk box - Google Patents
A kind of blackboard main cartridge with portable chalk box Download PDFInfo
- Publication number
- CN107443971A CN107443971A CN201710642980.9A CN201710642980A CN107443971A CN 107443971 A CN107443971 A CN 107443971A CN 201710642980 A CN201710642980 A CN 201710642980A CN 107443971 A CN107443971 A CN 107443971A
- Authority
- CN
- China
- Prior art keywords
- groove
- chalk
- sleeve
- fixed
- wall
- 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
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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45C—PURSES; LUGGAGE; HAND CARRIED BAGS
- A45C11/00—Receptacles for purposes not provided for in groups A45C1/00-A45C9/00
- A45C11/34—Pencil boxes; Pencil etuis or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention discloses a kind of blackboard main cartridge with portable chalk box, main cartridge includes upper cartridge body and lower box body, upper cartridge body and lower box body are bolted to connection, chalk is formed on the top surface of upper cartridge body and places groove, the bottom surface that chalk places groove has multiple through holes, connection bending part is fixed with the rear wall of the upper cartridge body, the rear end of connection bending part has the bending plate portion extended downwardly, bending plate portion sleeve is in cell body is extended, extend in cell body of the front panel sleeve of cell body between bending plate portion and upper cartridge body, extend and be bolted with multiple bulb plungers on the madial wall of the front panel of cell body;It has dismountable main cartridge, and chalk can be placed on main cartridge, while adsorbing powder dust caused by chalk is collected, and substantially reduces dust and blows afloat, and effect is good, so as to reduce the influence to user's body.
Description
The application is that at 25 on the applying date 2016 year 08 month is entitled a kind of with movement for Application No. 2016107280996
The divisional application of the blackboard of formula chalk box.
Technical field
It is more specifically to a kind of black with portable chalk box the present invention relates to teaching aid technical field
Plate main cartridge.
Background technology
In existing teaching, usually chalk etc. is placed in the ledge for chalk on blackboard of blackboard or is placed on the chalk holder at dais
In, for the chalk being placed in ledge for chalk on blackboard, dust can be accumulated in ledge for chalk on blackboard by it so that when there is wind ledge for chalk on blackboard in the external world just
The dust of chalk can be blown afloat so that user sucks and unhealthful.
The content of the invention
The purpose of the present invention and provides a kind of black with portable chalk box aiming at the deficiency of prior art
Plate, it has dismountable main cartridge, and chalk can be placed on main cartridge, while adsorbing powder dust caused by chalk is collected, greatly
The big dust that reduces is blown afloat, and effect is good, so as to reduce the influence to user's body.
The technology solution of the present invention is as follows:
A kind of blackboard with portable chalk box, including blackboard main body and main cartridge, the bottom of the blackboard main body
The extension cell body extended forward is formed on portion's front face, main cartridge includes upper cartridge body and lower box body, and upper cartridge body and lower box body lead to
Cross bolt to be fixedly connected, chalk is formed on the top surface of upper cartridge body and places groove, the bottom surface that chalk places groove has multiple lead to
Hole, connection bending part is fixed with the rear wall of the upper cartridge body, the rear end for connecting bending part has the bending plate extended downwardly
Portion, bending plate portion sleeve extend cell body of the front panel sleeve of cell body between bending plate portion and upper cartridge body in cell body is extended
In, multiple bulb plungers are bolted with the madial wall for the front panel for extending cell body, the steel ball of bulb plunger stretches out extension cell body
The madial wall of front panel is simultaneously nested in the shrinkage pool having on the madial wall of bending plate portion, is set on the lower front wall of blackboard main body
Flexible piece, elastomer block is pressed against on the rear surface of bending plate portion, and the front face of bending plate portion is pressed against the antetheca of extension cell body
On the madial wall of plate;
Demarcation strip is fixed with the right side of lower box body, lower box body is separated into charging groove and collection groove, entered by demarcation strip
Material groove is in chalk and places the lower section of groove and communicated with through hole, and there is fan to place groove for the right-hand member bottom surface of upper cartridge body, lead to
In fan places groove, ventilation blower is fixed on bottom fixed board blower fan sleeve, and bottom fixed board is in fan and places groove
Bottom and be fixed on fan and place on the madial wall of groove, the master that the air inlet sleeve of ventilation blower has on bottom fixed board
In through hole, main through hole communicates with collection groove, has on the bottom plate of collection groove and collects through hole, collects lid and is fixed on lower box body
On bottom surface, the top surface for collecting lid forms the extension block upwardly extended, and extension block sleeve is in collection groove, the middle part of extension block
With collecting tank, there is lateral through aperture on demarcation strip, lateral through aperture one end communicates with charging groove, the other end of lateral through aperture with
Collection groove communicates.
The fan is placed and forms exhaust hole in the side wall of groove.
Baffle plate is fixed with the demarcation strip, baffle plate is in the underface of main through hole, and lateral through aperture is in the lower section of baffle plate.
The top surface edge for collecting lid has the steel post upwardly extended, has multiple positioning on the bottom plate of lower box body
Hole, permanent magnet inserting are enclosed in positioning hole, and the lateral wall of permanent magnet set is fixed on the madial wall of positioning hole, and steel post sleeve exists
In permanent magnet set and adsorb in permanent magnet set.
Guide plate is fixed with the charging groove, guide plate is in below through hole, has been connected and has been led on the bottom surface of guide plate
Xiang Guan, the other end of guide pipe connect lateral through aperture.
The chalk, which is placed, is fixed with positioning side on the inside middle portion wall of groove, screen pack sleeve places groove in chalk
In and be pressed against positioning side on, ring compression set be nested in chalk place groove in, ring compression set bottom surface be pressed against filtering
The top surface edge of web plate, there is extension to be pressed against side on the top exterior walls wall of ring compression set, extension is pressed against side and is pressed against chalk and puts
On the top surface for putting the side wall of groove.
Resilient sleeve is fixed with the lower front wall of the blackboard body, the front end face of resilient sleeve is fixed with front apron, bullet
Spring plug bush is in resilient sleeve, and the rear portion sleeve of elastomer block is in resilient sleeve, and spring one end is fixed on the bottom surface of resilient sleeve, spring
The other end be fixed on the rear end of elastomer block, the front end of elastomer block stretches out front apron and simultaneously forms reclinate pressing portion,
Pressing portion is pressed against on the rear surface of bending plate portion.
The front end of the connection bending part has the post that is spirally connected, and the post that is spirally connected passes through the side wall of upper cartridge body and the side of ring compression set
Wall is simultaneously bolted with fixing nut.
The beneficial effects of the present invention are:
It has dismountable main cartridge, chalk can be placed on main cartridge, while adsorbing powder dust caused by chalk is received
Collection, substantially reduces dust and blows afloat, effect is good, so as to reduce the influence to user's body.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the partial sectional view of the present invention;
Fig. 3 is the partial structural diagram of the main cartridge of the present invention.
Embodiment
Embodiment:As shown in Fig. 1 to Fig. 3, a kind of blackboard with portable chalk box, including the He of blackboard main body 30
Main cartridge 100, the extension cell body 31 extended forward is formed on the bottom front face of the blackboard main body 30, main cartridge 100 wraps
Upper cartridge body 10 and lower box body 20 are included, upper cartridge body 10 and lower box body 20 are bolted to connection, be molded on the top surface of upper cartridge body 10
There is chalk to place groove 11, the bottom surface that chalk places groove 11 has multiple through holes 12, consolidated on the rear wall of the upper cartridge body 10
Surely there is connection bending part 16, the rear end of connection bending part 16 has the bending plate portion 161 extended downwardly, the sleeve of bending plate portion 161
In cell body 31 is extended, extend in cell body of the front panel sleeve of cell body 31 between bending plate portion 161 and upper cartridge body 10, extension
Multiple bulb plungers 32 are bolted with the madial wall of the front panel of cell body 31, the steel ball of bulb plunger 32 stretches out extension cell body 31
The madial wall of front panel is simultaneously nested in the shrinkage pool 162 having on the madial wall of bending plate portion 161, before the bottom of blackboard body 30
Side wall is provided with elastomer block 33, and elastomer block 33 is pressed against on the rear surface of bending plate portion 161, the antetheca face pressure of bending plate portion 161
On the madial wall for leaning against the front panel of extension cell body 31;
Demarcation strip 21 is fixed with the right side of lower box body 20, lower box body 20 is separated into charging groove 22 and received by demarcation strip 21
Collect groove 23, charging groove 22 is in chalk and places the lower section of groove 11 and communicated with through hole 12, the right-hand member bottom surface of upper cartridge body 10
Groove 13 is placed with fan, for the sleeve of ventilation blower 14 in fan places groove 13, ventilation blower 14 is fixed on bottom fixed board 15
On, bottom fixed board 15 is in fan and places the bottom of groove 13 and be fixed on the madial wall of fan placement groove 13, ventilation
In the main through hole 151 that the air inlet sleeve of machine 14 has on bottom fixed board 15, main through hole 151 communicates with collection groove 23,
Have on the bottom plate of collection groove 23 and collect through hole 231, collect lid 24 and be fixed on the bottom surface of lower box body 20, collect the top of lid 24
Face forms the extension block 241 upwardly extended, and in collection groove 23, the middle part of extension block 241 has receives the sleeve of extension block 241
Collect groove 242, there is lateral through aperture 211 on demarcation strip 21, the one end of lateral through aperture 211 communicates with charging groove 22, lateral through aperture 211
The other end communicated with collection groove 23.
Further, the fan is placed and forms exhaust hole 131 in the side wall of groove 13.
Further, baffle plate 25 is fixed with the demarcation strip 21, baffle plate 25 is in the underface of main through hole 151, side
Wall through hole 211 is in the lower section of baffle plate 25.
Further, the top surface edge for collecting lid 24 has the steel post 243 upwardly extended, the bottom of lower box body 20
There are multiple positioning holes 26, permanent magnet covers 27 sleeves in positioning hole 26, and the lateral wall of permanent magnet set 27 is fixed on positioning on plate
On the madial wall in hole 26, the sleeve of steel post 243 is in permanent magnet set 27 and adsorbs in permanent magnet set 27.
Further, guide plate 28 is fixed with the charging groove 22, guide plate 28 is in the lower section of through hole 12, is oriented to
Guide pipe 29 is connected on the bottom surface of plate 28, the other end of guide pipe 29 connects lateral through aperture 211.
Further, the chalk, which is placed, is fixed with positioning side 111, screen pack on the inside middle portion wall of groove 11
112 sleeves are in chalk places groove 11 and are pressed against on positioning side 111, and ring compression set 113 is nested in chalk and places groove
In 11, the bottom surface of ring compression set 113 is pressed against the top surface edge of screen pack 112, the top exterior walls wall of ring compression set 113
Upper that there is extension to be pressed against side 114, extension is pressed against side 114 and is pressed against on the top surface for the side wall that chalk places groove 11.
Further, resilient sleeve 34, the front end of resilient sleeve 34 are fixed with the lower front wall of the blackboard body 30
Face is fixed with front apron 35, and the sleeve of spring 36 is in resilient sleeve 34, and the rear portion sleeve of elastomer block 33 is in resilient sleeve 34, spring 36
One end is fixed on the bottom surface of resilient sleeve 34, and the other end of spring 36 is fixed on the rear end of elastomer block 33, before elastomer block 33
End stretches out front apron 35 and forms reclinate pressing portion 331, and pressing portion 331 is pressed against the rear surface of bending plate portion 161
On.
Further, the front end of the connection bending part 16 has the post 163 that is spirally connected, and the post 163 that is spirally connected passes through upper cartridge body 10
Side wall and ring compression set 113 side wall and be bolted with fixing nut 164.
Operation principle:By the way that connection bending part 16 is fixed on upper cartridge body 10, then, the bending of bending part 16 will be connected
The sleeve of plate portion 161 is gripped in cell body 31 is extended by bulb plunger 32 and elastomer block 33, and it is removed and installed conveniently, so
Afterwards, chalk is placed on screen pack 112 so that chalk dust enters chalk by screen pack 112 and places groove 11
On bottom surface, being run by ventilation blower 14, realize air-breathing so that dust is entered in collection groove 23 by guide pipe 29, subsequently into
In collecting tank 242, after accumulating certain dust, firmly pull downward on collection lid 24 and can be taken off toppling over, it is very convenient.
Claims (6)
- A kind of 1. blackboard main cartridge with portable chalk box, it is characterised in that:The bottom of the blackboard main body (30) The extension cell body (31) extended forward is formed on front face, main cartridge (100) includes upper cartridge body (10) and lower box body (20), on Box body (10) and lower box body (20) are bolted to connection, and chalk is formed on the top surface of upper cartridge body (10) and places groove (11) bottom surface that, chalk places groove (11) has multiple through holes (12), the company of being fixed with the rear wall of the upper cartridge body (10) Bending part (16) is connect, the rear end of connection bending part (16) has the bending plate portion (161) extended downwardly, and bending plate portion (161) is inserted It is enclosed in extension cell body (31), the front panel sleeve of extension cell body (31) is between bending plate portion (161) and upper cartridge body (10) In cell body, multiple bulb plungers (32), the steel of bulb plunger (32) are bolted with the madial wall of the front panel of extension cell body (31) Ball stretches out the madial wall of the front panel of extension cell body (31) and is nested in the shrinkage pool having on the madial wall of bending plate portion (161) (162) in, the lower front wall of blackboard body (30) is provided with elastomer block (33), and elastomer block (33) is pressed against bending plate portion (161) on rear surface, the front face of bending plate portion (161) is pressed against on the madial wall of the front panel of extension cell body (31);Demarcation strip (21) is fixed with the right side of lower box body (20), lower box body (20) is separated into charging groove by demarcation strip (21) (22) it is in chalk with collection groove (23), charging groove (22) and places the lower section of groove (11) and communicated with through hole (12), on There is fan to place groove (13) for the right-hand member bottom surface of box body (10), and ventilation blower (14) sleeve leads in fan places groove (13) Blower fan (14) is fixed on bottom fixed board (15), and bottom fixed board (15) is in bottom and the fixation that fan places groove (13) On the madial wall that fan places groove (13), master that the air inlet sleeve of ventilation blower (14) has on bottom fixed board (15) In through hole (151), main through hole (151) communicates with collection groove (23), has on the bottom plate of collection groove (23) and collects through hole (231), collect lid (24) to be fixed on the bottom surface of lower box body (20), the top surface for collecting lid (24) forms the extension upwardly extended Block (241), for extension block (241) sleeve in collection groove (23), the middle part of extension block (241) has collecting tank (242), separates There is lateral through aperture (211), lateral through aperture (211) one end communicates with charging groove (22), lateral through aperture (211) on plate (21) The other end communicates with collection groove (23).The fan is placed and forms exhaust hole (131) in the side wall of groove (13).Baffle plate (25) is fixed with the demarcation strip (21), baffle plate (25) is in the underface of main through hole (151), lateral through aperture (211) it is in the lower section of baffle plate (25).
- A kind of 2. blackboard main cartridge with portable chalk box according to claim 1, it is characterised in that:The receipts Ji Gai (24) top surface edge has the steel post (243) upwardly extended, has multiple positioning holes on the bottom plate of lower box body (20) (26), for permanent magnet set (27) sleeve in positioning hole (26), the lateral wall of permanent magnet set (27) is fixed on the interior of positioning hole (26) In side wall, steel post (243) sleeve is in permanent magnet set (27) and adsorbs in permanent magnet set (27).
- A kind of 3. blackboard main cartridge with portable chalk box according to claim 1, it is characterised in that:It is described enter Guide plate (28) is fixed with material groove (22), guide plate (28) is in below through hole (12), is led on the bottom surface of guide plate (28) Guide pipe (29) is connected to, the other end of guide pipe (29) connects lateral through aperture (211).
- A kind of 4. blackboard main cartridge with portable chalk box according to claim 1, it is characterised in that:The powder Pen is placed and positioning side (111) is fixed with the inside middle portion wall of groove (11), and screen pack (112) sleeve places groove in chalk (11) in and it is pressed against in positioning side (111), ring compression set (113) is nested in chalk and placed in groove (11), ring compression The bottom surface of set (113) is pressed against the top surface edge of screen pack (112), has on the top exterior walls wall of ring compression set (113) Side (114) are pressed against in extension, and extension is pressed against side (114) and is pressed against on the top surface for the side wall that chalk places groove (11).
- A kind of 5. blackboard main cartridge with portable chalk box according to claim 1, it is characterised in that:It is described black Resilient sleeve (34) is fixed with the lower front wall of plate body (30), the front end face of resilient sleeve (34) is fixed with front apron (35), Spring (36) sleeve is in resilient sleeve (34), and for the rear portion sleeve of elastomer block (33) in resilient sleeve (34), spring (36) one end is solid It is scheduled on the bottom surface of resilient sleeve (34), the other end of spring (36) is fixed on the rear end of elastomer block (33), elastomer block (33) Front end stretches out front apron (35) and forms reclinate pressing portion (331), and pressing portion (331) are pressed against bending plate portion (161) on rear surface.
- A kind of 6. blackboard main cartridge with portable chalk box according to claim 4, it is characterised in that:The company Connecing the front end of bending part (16) has the post (163) that is spirally connected, and the post that is spirally connected (163) passes through the side wall and ring compression set of upper cartridge body (10) (113) side wall is simultaneously bolted with fixing nut (164).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710642980.9A CN107443971A (en) | 2016-08-25 | 2016-08-25 | A kind of blackboard main cartridge with portable chalk box |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610728099.6A CN106240196B (en) | 2016-08-25 | 2016-08-25 | A kind of blackboard with portable chalk box |
CN201710642980.9A CN107443971A (en) | 2016-08-25 | 2016-08-25 | A kind of blackboard main cartridge with portable chalk box |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610728099.6A Division CN106240196B (en) | 2016-08-25 | 2016-08-25 | A kind of blackboard with portable chalk box |
Publications (1)
Publication Number | Publication Date |
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CN107443971A true CN107443971A (en) | 2017-12-08 |
Family
ID=57594851
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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CN201710642980.9A Pending CN107443971A (en) | 2016-08-25 | 2016-08-25 | A kind of blackboard main cartridge with portable chalk box |
CN201610728099.6A Active CN106240196B (en) | 2016-08-25 | 2016-08-25 | A kind of blackboard with portable chalk box |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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CN201610728099.6A Active CN106240196B (en) | 2016-08-25 | 2016-08-25 | A kind of blackboard with portable chalk box |
Country Status (1)
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CN (2) | CN107443971A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110757991A (en) * | 2019-11-12 | 2020-02-07 | 江苏斯固信息科技有限公司 | Teaching aid for drawing on blackboard plane |
CN112497957A (en) * | 2020-12-07 | 2021-03-16 | 安徽文香信息技术有限公司 | Chalk storage device for intelligent blackboard |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06239091A (en) * | 1993-02-16 | 1994-08-30 | Umajirushi:Kk | Chalk powder receiving plate of blackboard |
CN201282806Y (en) * | 2008-09-16 | 2009-08-05 | 孟祥鑫 | Chalk fixing box |
CN201536743U (en) * | 2009-11-30 | 2010-08-04 | 李玉新 | Suspended multifunctional chalk box |
CN201668079U (en) * | 2010-05-11 | 2010-12-15 | 齐那尔·木拉力别克 | Chalk box |
CN201976985U (en) * | 2011-03-18 | 2011-09-21 | 郑新卿 | Chalk box |
CN202311769U (en) * | 2011-11-03 | 2012-07-11 | 王峰 | Wall-mounted chalk placing box |
CN202714380U (en) * | 2012-08-07 | 2013-02-06 | 刘雪霞 | Slidable chalk box |
CN102948989A (en) * | 2012-11-26 | 2013-03-06 | 姚宁 | Multifunctional chalk box |
CN202919302U (en) * | 2012-11-27 | 2013-05-08 | 南京工程学院 | Guide rail type sliding chalk box |
CN203041039U (en) * | 2012-12-11 | 2013-07-10 | 刘瑞初 | Novel chalk box |
CN103431607A (en) * | 2013-08-20 | 2013-12-11 | 王雪松 | Novel chalk box |
CN103815642A (en) * | 2012-11-19 | 2014-05-28 | 李东临 | Chalk box |
CN203676376U (en) * | 2013-12-05 | 2014-07-02 | 张继开 | Writing case |
CN203952721U (en) * | 2014-06-24 | 2014-11-26 | 韩瑞 | A kind of multifunctional chalk frame |
CN204181130U (en) * | 2014-11-19 | 2015-03-04 | 广东客都实业投资有限公司 | A kind of environmental protection chalk box |
CN204682815U (en) * | 2015-05-21 | 2015-10-07 | 黄竞瑶 | A kind of teaching chalk holder |
CN105310239A (en) * | 2014-08-04 | 2016-02-10 | 陈蕊 | Chalk box |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3643883B2 (en) * | 2000-12-27 | 2005-04-27 | 友治 追川 | blackboard |
CN2774804Y (en) * | 2005-03-21 | 2006-04-26 | 荣延祥 | Dust suction device for blackboard |
CN202448579U (en) * | 2012-02-15 | 2012-09-26 | 王君宇 | Dust-adsorbing blackboard groove |
CN203110695U (en) * | 2012-12-25 | 2013-08-07 | 重庆市清华中学校 | Blackboard groove with dust collection box |
CN203121386U (en) * | 2012-12-25 | 2013-08-14 | 重庆市清华中学校 | Multifunctional chalk box |
CN103565067A (en) * | 2013-11-08 | 2014-02-12 | 劳卓昌 | Containing box for pieces of chalk and eraser plate |
CN203618957U (en) * | 2013-12-20 | 2014-06-04 | 西南石油大学 | Multifunctional chalk box |
CN205009827U (en) * | 2015-08-28 | 2016-02-03 | 鸿合科技有限公司 | Take blank of pencil box |
CN205326583U (en) * | 2015-12-28 | 2016-06-22 | 石家庄科达文教用品有限公司 | A assembled basin for wet rubbing clipboard |
-
2016
- 2016-08-25 CN CN201710642980.9A patent/CN107443971A/en active Pending
- 2016-08-25 CN CN201610728099.6A patent/CN106240196B/en active Active
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06239091A (en) * | 1993-02-16 | 1994-08-30 | Umajirushi:Kk | Chalk powder receiving plate of blackboard |
CN201282806Y (en) * | 2008-09-16 | 2009-08-05 | 孟祥鑫 | Chalk fixing box |
CN201536743U (en) * | 2009-11-30 | 2010-08-04 | 李玉新 | Suspended multifunctional chalk box |
CN201668079U (en) * | 2010-05-11 | 2010-12-15 | 齐那尔·木拉力别克 | Chalk box |
CN201976985U (en) * | 2011-03-18 | 2011-09-21 | 郑新卿 | Chalk box |
CN202311769U (en) * | 2011-11-03 | 2012-07-11 | 王峰 | Wall-mounted chalk placing box |
CN202714380U (en) * | 2012-08-07 | 2013-02-06 | 刘雪霞 | Slidable chalk box |
CN103815642A (en) * | 2012-11-19 | 2014-05-28 | 李东临 | Chalk box |
CN102948989A (en) * | 2012-11-26 | 2013-03-06 | 姚宁 | Multifunctional chalk box |
CN202919302U (en) * | 2012-11-27 | 2013-05-08 | 南京工程学院 | Guide rail type sliding chalk box |
CN203041039U (en) * | 2012-12-11 | 2013-07-10 | 刘瑞初 | Novel chalk box |
CN103431607A (en) * | 2013-08-20 | 2013-12-11 | 王雪松 | Novel chalk box |
CN203676376U (en) * | 2013-12-05 | 2014-07-02 | 张继开 | Writing case |
CN203952721U (en) * | 2014-06-24 | 2014-11-26 | 韩瑞 | A kind of multifunctional chalk frame |
CN105310239A (en) * | 2014-08-04 | 2016-02-10 | 陈蕊 | Chalk box |
CN204181130U (en) * | 2014-11-19 | 2015-03-04 | 广东客都实业投资有限公司 | A kind of environmental protection chalk box |
CN204682815U (en) * | 2015-05-21 | 2015-10-07 | 黄竞瑶 | A kind of teaching chalk holder |
Also Published As
Publication number | Publication date |
---|---|
CN106240196B (en) | 2017-11-07 |
CN106240196A (en) | 2016-12-21 |
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