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CN203818866U - Mathematics blackboard writing wiper - Google Patents

Mathematics blackboard writing wiper Download PDF

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Publication number
CN203818866U
CN203818866U CN201420266169.7U CN201420266169U CN203818866U CN 203818866 U CN203818866 U CN 203818866U CN 201420266169 U CN201420266169 U CN 201420266169U CN 203818866 U CN203818866 U CN 203818866U
Authority
CN
China
Prior art keywords
blackboard
driving gear
crossbearer
coaster
driven gear
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.)
Expired - Fee Related
Application number
CN201420266169.7U
Other languages
Chinese (zh)
Inventor
唐丽莉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201420266169.7U priority Critical patent/CN203818866U/en
Application granted granted Critical
Publication of CN203818866U publication Critical patent/CN203818866U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a mathematics blackboard writing wiper belonging to the technical field of teaching equipment. The mathematics blackboard writing wiper structurally comprises a wall body, a blackboard and a pulley, wherein the blackboard is fixedly arranged on the wall body; pulley rails are respectively arranged on the wall body; a rotary wiping roller is arranged in the front of the blackboard; driven gears are respectively arranged at the two ends of a roller shaft of the rotary wiping roller, and meanwhile are arranged fixing cross frames on the two sides of the blackboard; the fixing cross frames are connected with drive gears via drive gear shafts; the drive gears and the driven gears are arranged on the same inner sides of the fixing cross frames; the drive gears are meshed with the driven gears; milling racks are respectively arranged on the wall body of the two sides of the blackboard, and the drive gears are meshed with the milling racks; under the restrain of the pulley rail, the pulley drives the fixing cross frames to enable the rotary wiping roller to be in pressure contact with the surface of the blackboard. According to the mathematics blackboard writing wiper, via simple raising and pulling-down, the effect on wiping the blackboard can be achieved, the operation is convenient, quick and effective, and the cleaning wiping effect is realized.

Description

Mathematics blackboard writing on the blackboard wiping arrangement
Technical field
The utility model relates to teaching equipment technical field, specifically a kind of mathematics blackboard writing on the blackboard wiping arrangement.
Background technology
In blackboard traditional sense, say be one can repeated writing plane, plate face is hard, is used for teaching, with plank or ground glass etc., makes, and can write in the above with chalk, mostly is black, blackish green, white.Chalk, is the instrument of transmission of culture, is also the drugs of harm health.The engineer of how many souls suffers from chronic illness because of dust pollution again and again, inspiration tracheae, has left too early dais.Although country makes up the harm of this occupational disease to teacher by subsidy always, life is difficult to go compensation with money.Be sitting in front-seat student, be subject to equally the threat of dust.The difficulty that Zhe Shi scientific circles cannot capture for a long time.
Although the use of traditional blackboard eraser can be good at erasing chalk writings, but traditional blackboard eraser easily causes a large amount of chalk dusts, and the operational motion of the blackboard eraser reciprocal wiping of just exerting oneself, user easily occurs that arm is tired, the damage of wrist muscle and ligament, and can fall to having a lot of chalk dusts on the clothes of arm, be difficult for removing.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of mathematics blackboard writing on the blackboard wiping arrangement is provided.
The technical solution of the utility model realizes in the following manner, this mathematics blackboard writing on the blackboard wiping arrangement, its structure comprises body of wall, blackboard and coaster, on body of wall, be fixedly installed blackboard, on the body of wall of blackboard both sides, be respectively arranged with pulley rail, blackboard the place ahead is provided with rotation wiper rolls, and the periphery of rotating wiper rolls is provided with wiping villous surface; The roll shaft two ends of rotating wiper rolls are respectively arranged with driven gear, driven gear is arranged on the fixedly crossbearer of blackboard both sides by driven gear shaft, fixedly on crossbearer, by driving gear shaft, be connected with driving gear, driving gear and driven gear are arranged on the fixedly same inner side of crossbearer, driving gear and driven gear engagement; Wheel week and the number of teeth that the wheel week of driving gear and the number of teeth are all greater than driven gear; On the body of wall of blackboard both sides, be respectively arranged with mill teeth bar, driving gear and the engagement of mill teeth bar; Fixedly the rear end of crossbearer is fixedly installed on the body center portion of coaster, in coaster and same plane, be provided with four rolling, the whole vehicle body of coaster is arranged in pulley rail, the place ahead two rollers of four rolling and the front inner edge of pulley rail contact, rear two rollers of four rolling and the rear inner edge of pulley rail contact, coaster is slidably connected by four rolling and pulley rail, and coaster drives fixedly crossbearer will rotate wiper rolls in the constraint of pulley rail and contacts to blackboard surface pressing; The fixedly crossbearer front end of blackboard both sides is fixedly connected with front end frame; Fixedly the above and below of crossbearer respectively and between coaster, be provided with three corner steadies.
Wiping villous surface is bonded in the surface of rotating wiper rolls.
Driving gear and driven gear transmission engage ratio are 1:2.
The gear teeth of driven gear, driving gear match, and the tooth of the gear teeth of driving gear and mill teeth bar matches.
On front end frame, enclose and under enclose and be provided with chalk dust collecting box, chalk dust collecting box is provided with trailing edge opening, trailing edge opening is towards blackboard, trailing edge opening is provided with bristle, bristle end contacts with blackboard panel.
The beneficial effect that the utility model compared with prior art produced is:
This mathematics blackboard writing on the blackboard wiping arrangement is by promoting upper act or drop-downly pressing down the relative motion that fixing crossbearer is realized driving gear and mill teeth bar, thereby make driving gear rotation, drive driven gear rotates, and realizes and while promoting upper act, rotates the pivoting friction direction of wiper rolls and blackboard and promote the upper opposite direction of lifting; In like manner, the drop-down fixedly crossbearer that presses down, pivoting friction direction and the drop-down opposite direction that presses down of rotation wiper rolls and blackboard; Thereby formation wiping surface; And arranging of driving gear and driven gear transmission engage ratio can effectively be carried out wiping to blackboard, avoid the invalid wiping of directly rolling and bringing.Only need simple upper act and drop-down, can realize the effect of blackboard wiping, convenient, fast, effective, wiping effect is clean.Chalk dust collecting box effective collection chalk dust is set, avoid air pollution and health hazards.
This mathematics blackboard writing on the blackboard wiping arrangement is reasonable in design, simple in structure, safe and reliable, easy to use, be easy to safeguard, has good value for applications.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is partial structurtes schematic diagrames of the present utility model.
Mark in accompanying drawing represents respectively:
1, body of wall, 2, blackboard, 3, pulley rail, 4, rotate wiper rolls, 5, wiping villous surface, 6, roll shaft, 7, driven gear, 8, driven gear shaft, 9, fixing crossbearer, 10, driving gear shaft, 11, driving gear, 12, mill teeth bar,
13, coaster, 14, roller, 15, front inner edge, 16, rear inner edge, 17, front end frame, 18, three corner steadies, 19, chalk dust collecting box, 20, trailing edge opening, 21, bristle, 22, door.
The specific embodiment
Below in conjunction with accompanying drawing, mathematics blackboard writing on the blackboard wiping arrangement of the present utility model is described in detail below.
As shown in drawings, mathematics blackboard writing on the blackboard wiping arrangement of the present utility model, its structure comprises body of wall 1, blackboard 2 and coaster 13, on body of wall 1, be fixedly installed blackboard 2, on the body of wall 1 of blackboard 2 both sides, be respectively arranged with pulley rail 3, blackboard 2 the place aheads are provided with rotates wiper rolls 4, and the periphery of rotating wiper rolls 4 is provided with wiping villous surface 5; Roll shaft 6 two ends of rotating wiper rolls 4 are respectively arranged with driven gear 7, driven gear 7 is arranged on the fixedly crossbearer 9 of blackboard both sides by driven gear shaft 8, fixedly on crossbearer 9, by driving gear shaft 10, be connected with driving gear 11, driving gear 11 is arranged on the fixedly same inner side of crossbearer 9 with driven gear 7, driving gear 11 and driven gear 7 engagements; Wheel week and the number of teeth that the wheel week of driving gear 11 and the number of teeth are all greater than driven gear 7; On the body of wall of blackboard both sides, be respectively arranged with mill teeth bar 12, driving gear 11 and 12 engagements of mill teeth bar; Fixedly the rear end of crossbearer 9 is fixedly installed on the body center portion of coaster 13, in coaster 13 and same plane, be provided with four rolling 14, the whole vehicle body of coaster 13 is arranged in pulley rail 3, the place ahead two rollers of four rolling and the front inner edge 15 of pulley rail 3 contact, rear two rollers of four rolling and the rear inner edge 16 of pulley rail 3 contact, coaster 13 is slidably connected by four rolling and pulley rail 3, and coaster 13 drives fixedly crossbearer will rotate wiper rolls 4 to blackboard 2 surface pressing contacts in the constraint of pulley rail 3; Fixedly crossbearer 9 front ends of blackboard 2 both sides are fixedly connected with front end frame 17; Fixedly the above and below of crossbearer 9 respectively and between coaster 13, be provided with three corner steadies 18.Wiping villous surface 5 is bonded in the surface of rotating wiper rolls 4.Driving gear 11 is 1:2 with driven gear 7 transmission engage ratio.The gear teeth of driven gear 7, driving gear 11 match, and the tooth of the gear teeth of driving gear 11 and mill teeth bar 12 matches.On front end frame 17, enclose and under enclose and be provided with chalk dust collecting box 19, chalk dust collecting box 19 is provided with trailing edge opening 20, trailing edge opening 20 is towards blackboard 2, trailing edge opening 20 is provided with bristle 21, bristle 21 ends contact with blackboard 2 plate faces.
Pulley rail can be provided with upper opening, while needing, can directly coaster be shifted out to pulley rail, thereby takes off whole fixedly crossbearer and rotate wiper rolls.
The front end of chalk dust collecting box can be provided with door 22, in the time of need to clearing up chalk dust, only door need to be opened, and after removing chalk dust, shuts door, continues to use.

Claims (5)

1. mathematics blackboard writing on the blackboard wiping arrangement, is characterized in that comprising body of wall, blackboard and coaster,
On body of wall, be fixedly installed blackboard,
On the body of wall of blackboard both sides, be respectively arranged with pulley rail,
Blackboard the place ahead is provided with rotation wiper rolls, and the periphery of rotating wiper rolls is provided with wiping villous surface;
The roll shaft two ends of rotating wiper rolls are respectively arranged with driven gear, driven gear is arranged on the fixedly crossbearer of blackboard both sides by driven gear shaft, fixedly on crossbearer, by driving gear shaft, be connected with driving gear, driving gear and driven gear are arranged on the fixedly same inner side of crossbearer, driving gear and driven gear engagement;
Wheel week and the number of teeth that the wheel week of driving gear and the number of teeth are all greater than driven gear;
On the body of wall of blackboard both sides, be respectively arranged with mill teeth bar, driving gear and the engagement of mill teeth bar;
Fixedly the rear end of crossbearer is fixedly installed on the body center portion of coaster, in coaster and same plane, be provided with four rolling, the whole vehicle body of coaster is arranged in pulley rail, the place ahead two rollers of four rolling and the front inner edge of pulley rail contact, rear two rollers of four rolling and the rear inner edge of pulley rail contact, coaster is slidably connected by four rolling and pulley rail, and coaster drives fixedly crossbearer will rotate wiper rolls in the constraint of pulley rail and contacts to blackboard surface pressing;
The fixedly crossbearer front end of blackboard both sides is fixedly connected with front end frame;
Fixedly the above and below of crossbearer respectively and between coaster, be provided with three corner steadies.
2. mathematics blackboard writing on the blackboard wiping arrangement according to claim 1, is characterized in that wiping villous surface is bonded in the surface of rotating wiper rolls.
3. mathematics blackboard writing on the blackboard wiping arrangement according to claim 1, is characterized in that driving gear and driven gear transmission engage ratio are 1:2.
4. mathematics blackboard writing on the blackboard wiping arrangement according to claim 1, is characterized in that the gear teeth of driven gear, driving gear match, and the tooth of the gear teeth of driving gear and mill teeth bar matches.
5. mathematics blackboard writing on the blackboard wiping arrangement according to claim 1, it is characterized in that front end frame on enclose and under enclose and be provided with chalk dust collecting box, chalk dust collecting box is provided with trailing edge opening, trailing edge opening is towards blackboard, trailing edge opening is provided with bristle, and bristle end contacts with blackboard panel.
CN201420266169.7U 2014-05-23 2014-05-23 Mathematics blackboard writing wiper Expired - Fee Related CN203818866U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420266169.7U CN203818866U (en) 2014-05-23 2014-05-23 Mathematics blackboard writing wiper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420266169.7U CN203818866U (en) 2014-05-23 2014-05-23 Mathematics blackboard writing wiper

Publications (1)

Publication Number Publication Date
CN203818866U true CN203818866U (en) 2014-09-10

Family

ID=51474403

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420266169.7U Expired - Fee Related CN203818866U (en) 2014-05-23 2014-05-23 Mathematics blackboard writing wiper

Country Status (1)

Country Link
CN (1) CN203818866U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109174745A (en) * 2018-09-26 2019-01-11 国网黑龙江省电力有限公司电力科学研究院 A kind of electric car wireless charging panel surface automatic flushing device
CN113129702A (en) * 2021-04-23 2021-07-16 王小彩 English show board with regulatory function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109174745A (en) * 2018-09-26 2019-01-11 国网黑龙江省电力有限公司电力科学研究院 A kind of electric car wireless charging panel surface automatic flushing device
CN113129702A (en) * 2021-04-23 2021-07-16 王小彩 English show board with regulatory function

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140910

Termination date: 20160523

CF01 Termination of patent right due to non-payment of annual fee