CN201245018Y - Automatic dust-collection blackboard eraser - Google Patents

Automatic dust-collection blackboard eraser Download PDF

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Publication number
CN201245018Y
CN201245018Y CNU2008200722987U CN200820072298U CN201245018Y CN 201245018 Y CN201245018 Y CN 201245018Y CN U2008200722987 U CNU2008200722987 U CN U2008200722987U CN 200820072298 U CN200820072298 U CN 200820072298U CN 201245018 Y CN201245018 Y CN 201245018Y
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CN
China
Prior art keywords
helical gear
dust
connecting rod
leaf
wheel
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
CNU2008200722987U
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Chinese (zh)
Inventor
刘博文
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CNU2008200722987U priority Critical patent/CN201245018Y/en
Application granted granted Critical
Publication of CN201245018Y publication Critical patent/CN201245018Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an automatic dust-absorption blackboard eraser which belongs to the technical field of teaching appliance manufacture. The automatic dust-absorption blackboard eraser comprises a frame body, brush bristles, a dust-absorption impeller, a dust storage box and a driver. The driver mainly comprises a shaft rod, helical gears, a frication wheel and the like. When the automatic dust-absorption blackboard eraser is used for erasing a blackboard, the friction wheel can rub and roll left and right on the blackboard surface, the dust-absorption impeller is driven to rotate through a plurality of helical gears and the shaft rod, and then dust is absorbed in the dust storage box. The utility model is simply and conveniently operated without the electric power, and has low noise and reliable performance.

Description

Automatic dust-absorption eraser
Technical field:
The utility model belongs to teaching aid manufacturing technology field, is a kind of blackboard eraser.
Background technology:
Existing blackboard eraser is divided into ordinary blackboard eraser and dust absorption blackboard eraser, and ordinary blackboard eraser is kicked up dust in the process of erasing the board, contaminated environment, infringement health; Dust absorption blackboard eraser mainly is made of support body, bristle, dust-absorbing impeller and dust-collecting box, and dust-absorbing impeller relies on the driven by motor rotation, dust is sucked in the dust-collecting box, because the electrical consumption electric energy, and producing noise, present this dust absorption blackboard eraser popularity rate is not high.
Summary of the invention:
The technical problems to be solved in the utility model is to disclose a kind of low noise automatic dust-absorption eraser.
The scheme of the utility model technical solution problem is on the dust absorption blackboard eraser support body driver to be housed, driver is mainly by the transverse axis bar, middle helical gear, the limit helical gear, the wheel helical gear, friction pulley, the wheel bar, following helical gear, last helical gear, longitudinal axis bar, the leaf helical gear, left side helical gear, left side connecting rod, left slider, right helical gear, right connecting rod, right slide block, sliding sleeve, power transmission shaft and axle sleeve constitute, wherein middle helical gear is equipped with at the middle part of transverse axis bar, the limit helical gear is equipped with at two ends respectively, limit helical gear and the engagement of wheel helical gear, the wheel helical gear is contained on the wheel bar, friction pulley is equipped with on the top of wheel bar, the friction pulley position is at the bristle place, longitudinal axis bar one end is equipped with helical gear, the other end is equipped with down helical gear, following helical gear and the engagement of middle helical gear, the leaf helical gear is connected with the axle of dust-absorbing impeller by drive link, the leaf helical gear is relative with last helical gear position, there is left connecting rod in leaf helical gear and last helical gear left side, left side connecting rod inner termination is equipped with left helical gear, external end head is equipped with left slider, left side helical gear cooperates with leaf helical gear and last beveled gear teeth, there is right connecting rod on leaf helical gear and last helical gear right side, the right connecting rod inner termination is equipped with right helical gear, external end head is equipped with right slide block, right helical gear cooperates with leaf helical gear and last beveled gear teeth, left side connecting rod is connected with support body by sliding sleeve respectively with right connecting rod, the wheel bar, the transverse axis bar, longitudinal axis bar is connected with support body by axle sleeve respectively with drive link.When erasing the board, friction pulley is left and right sides friction rolling on blackboard surface, by a plurality of helical gears and transverse axis bar and upward helical gear rotation of longitudinal axis bar drive, simultaneously, because effect of inertia, when blackboard eraser moves right, right connecting rod is moved to the left, right helical gear and leaf helical gear and last helical gear mesh simultaneously, drive dust-absorbing impeller by drive link and turn clockwise, when blackboard eraser is moved to the left, right connecting rod drives right helical gear and breaks away from leaf helical gear and last helical gear, left side connecting rod moves right, and right helical gear and leaf helical gear and last helical gear mesh simultaneously, also drives dust-absorbing impeller by drive link and turns clockwise.
The utility model is easy and simple to handle, does not need electric energy, and noise is low, dependable performance.
Description of drawings:
Fig. 1 is the utility model schematic diagram;
Fig. 2 is the driver schematic diagram;
Fig. 3 is driver transverse axis bar, friction pulley upward view partly.
The specific embodiment:
The utility model is by support body 1, bristle 2, dust-absorbing impeller 3 and dust-collecting box 4 constitute, driver 5 is housed on support body 1, driver 5 is mainly by transverse axis bar 6, middle helical gear 7, limit helical gear 8, wheel helical gear 9, friction pulley 10, wheel bar 24, following helical gear 11, last helical gear 12, longitudinal axis bar 13, leaf helical gear 14, left side helical gear 15, left side connecting rod 16, left slider 17, right helical gear 18, right connecting rod 19, right slide block 20, sliding sleeve 21, drive link 22 and axle sleeve 23 constitute, helical gear 7 during wherein be equipped with at the middle part of transverse axis bar 6, limit helical gear 8 is equipped with at two ends respectively, limit helical gear 8 and 9 engagements of wheel helical gear, wheel helical gear 9 is contained on the wheel bar 24, friction pulley 10 is equipped with on the top of wheel bar 24, friction pulley 10 positions are at bristle 2 places, longitudinal axis bar 13 1 ends are equipped with helical gear 12, the other end is equipped with down helical gear 11, following helical gear 11 and middle helical gear 7 engagements, leaf helical gear 14 is connected with the axle of dust-absorbing impeller 3 by drive link 22, leaf helical gear 14 is relative with last helical gear 12 positions, there is left connecting rod 16 in the left side of leaf helical gear 14 and last helical gear 12, left side connecting rod 16 inner termination are equipped with left helical gear 15, external end head is equipped with left slider 17, left side helical gear 15 cooperates with leaf helical gear 14 and last helical gear 12 teeth, there is right connecting rod 19 on the right side of leaf helical gear 14 and last helical gear 12, right connecting rod 19 inner termination are equipped with right helical gear 18, external end head is equipped with right slide block 20, right helical gear 18 cooperates with leaf helical gear 14 and last helical gear 12 teeth, left side connecting rod 16 is connected with support body 1 by sliding sleeve 21 respectively with right connecting rod 19, wheel bar 24, transverse axis bar 6, longitudinal axis bar 13 is connected with support body 1 by axle sleeve 23 respectively with drive link 22.

Claims (1)

1, a kind of automatic dust-absorption eraser, by support body, bristle, dust-absorbing impeller and dust-collecting box constitute, it is characterized in that: driver is housed on the support body, driver is mainly by the transverse axis bar, middle helical gear, the limit helical gear, the wheel helical gear, friction pulley, the wheel bar, following helical gear, last helical gear, longitudinal axis bar, the leaf helical gear, left side helical gear, left side connecting rod, left slider, right helical gear, right connecting rod, right slide block, sliding sleeve, power transmission shaft and axle sleeve constitute, wherein middle helical gear is equipped with at the middle part of transverse axis bar, the limit helical gear is equipped with at two ends respectively, limit helical gear and the engagement of wheel helical gear, the wheel helical gear is contained on the wheel bar, friction pulley is equipped with on the top of wheel bar, the friction pulley position is at the bristle place, longitudinal axis bar one end is equipped with helical gear, the other end is equipped with down helical gear, following helical gear and the engagement of middle helical gear, the leaf helical gear is connected with the axle of dust-absorbing impeller by drive link, the leaf helical gear is relative with last helical gear position, there is left connecting rod in leaf helical gear and last helical gear left side, left side connecting rod inner termination is equipped with left helical gear, external end head is equipped with left slider, left side helical gear cooperates with leaf helical gear and last beveled gear teeth, there is right connecting rod on leaf helical gear and last helical gear right side, the right connecting rod inner termination is equipped with right helical gear, external end head is equipped with right slide block, right helical gear cooperates with leaf helical gear and last beveled gear teeth, left side connecting rod is connected with support body by sliding sleeve respectively with right connecting rod, the wheel bar, the transverse axis bar, longitudinal axis bar is connected with support body by axle sleeve respectively with drive link.
CNU2008200722987U 2008-08-15 2008-08-15 Automatic dust-collection blackboard eraser Expired - Fee Related CN201245018Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200722987U CN201245018Y (en) 2008-08-15 2008-08-15 Automatic dust-collection blackboard eraser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200722987U CN201245018Y (en) 2008-08-15 2008-08-15 Automatic dust-collection blackboard eraser

Publications (1)

Publication Number Publication Date
CN201245018Y true CN201245018Y (en) 2009-05-27

Family

ID=40728833

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200722987U Expired - Fee Related CN201245018Y (en) 2008-08-15 2008-08-15 Automatic dust-collection blackboard eraser

Country Status (1)

Country Link
CN (1) CN201245018Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223805A (en) * 2013-04-22 2013-07-31 蔡宇豪 Vacuum-type blackboard eraser
CN107415543A (en) * 2017-04-14 2017-12-01 刘其获 Environment-friendly dust-proof eraser
CN108394218A (en) * 2018-05-09 2018-08-14 浙江交通职业技术学院 A kind of blackboard eraser that wiping dedusting is carried out to blackboard letter written with chalk for teaching

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103223805A (en) * 2013-04-22 2013-07-31 蔡宇豪 Vacuum-type blackboard eraser
CN107415543A (en) * 2017-04-14 2017-12-01 刘其获 Environment-friendly dust-proof eraser
CN108394218A (en) * 2018-05-09 2018-08-14 浙江交通职业技术学院 A kind of blackboard eraser that wiping dedusting is carried out to blackboard letter written with chalk for teaching

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090527

Termination date: 20100815