CN203438734U - Folding type dust-absorbing blackboard eraser - Google Patents

Folding type dust-absorbing blackboard eraser Download PDF

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Publication number
CN203438734U
CN203438734U CN201320423592.9U CN201320423592U CN203438734U CN 203438734 U CN203438734 U CN 203438734U CN 201320423592 U CN201320423592 U CN 201320423592U CN 203438734 U CN203438734 U CN 203438734U
Authority
CN
China
Prior art keywords
blackboard eraser
blackboard
eraser
folding
sides
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
CN201320423592.9U
Other languages
Chinese (zh)
Inventor
芮宏斌
那顺
吴艳良
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.)
Xian University of Technology
Original Assignee
Xian University of Technology
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 Xian University of Technology filed Critical Xian University of Technology
Priority to CN201320423592.9U priority Critical patent/CN203438734U/en
Application granted granted Critical
Publication of CN203438734U publication Critical patent/CN203438734U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a folding type dust-absorbing blackboard eraser. The folding type dust-absorbing blackboard eraser comprises a support capable of moving up and down. One surface, faced with a blackboard, of the support is provided with a fixed blackboard eraser. Two sides of the fixed blackboard eraser are hinged onto multiple folding blackboard erasers via hinges. Two sides of the fixed blackboard eraser are simultaneously provided with inner rotary shafts. Outsides of outermost folding blackboard erasers at two sides are provided with outer rotary shafts. A hydraulic cylinder is hinged between an inner rotary shaft and an outer rotary shaft at each side. The folding type dust-absorbing blackboard eraser has following beneficial effects: the blackboard eraser is arranged in a folding manner when not in use so that occupied space is greatly saved; and when in use, the blackboard eraser is driven by the hydraulic cylinder to expand; the folding type dust-absorbing blackboard eraser is large in wiping area and is capable of enhancing working efficiency; and during a wiping process, a dust collecting device exerts a dust absorbing function so that environmental pollution is reduced.

Description

A kind of collapsible dust absorption blackboard eraser
Technical field
The utility model belongs to teaching aid technical field, relates to a kind of collapsible dust absorption blackboard eraser.
Background technology
So far, there have been a lot of products about dust absorption blackboard eraser, all solved the problem of blackboard eraser dust suction accordingly, but still have some deficits, they are also difficult to reach at short notice the comparatively fast and effeciently specification requirement of blackboard wiping, and mostly be manual blackboard eraser, larger to teachers and students' physical demands.In addition, the guide tracked automatic blackboard eraser of existing vertical hanging on blackboard, although solved the problem of physical demands, area occupied is large, the blackboard eraser of the complete blackboard of wiping of suspension may pollute.
Utility model content
The purpose of this utility model is to provide a kind of collapsible dust absorption blackboard eraser, has solved the problem that blackboard eraser of the prior art cannot meet dust suction, convenient, fast requirement simultaneously.
The technical scheme that the utility model adopts is: a kind of collapsible dust absorption blackboard eraser, comprise the support that can move up and down, at stent cover, to the one side of blackboard, a fixed black blackboard eraser is installed, on fixed black blackboard eraser both sides, by hinge, be hinged with polylith folding eraser successively, on fixed black blackboard eraser both sides, be provided with an interior rotating shaft simultaneously, arranged outside at a folding eraser of both sides outermost has an outer shaft, is hinged with a hydraulic cylinder between the interior rotating shaft on every limit and outer shaft.
Collapsible dust absorption blackboard eraser of the present utility model, is further characterized in that,
The folding eraser on every limit is at least provided with two.
Hydraulic cylinder is the hydraulic cylinder of extended type piston rod.
Folding blackboard scrape along fixed black board wiper plane has a plurality of air suction openings to the surface uniform of blackboard, and all blackboard erasers are all connected with sweep-up pipe, and each sweep-up pipe is connected to dust collect plant.
The beneficial effects of the utility model are, adopt foldable structure, can larger area blackboard wiping, save teachers and students valuable time and muscle power.
Accompanying drawing explanation
Fig. 1 is the structural representation of the collapsible dust absorption blackboard eraser folded state of the utility model;
Fig. 2 is the structural representation of the collapsible dust absorption blackboard eraser deployed condition of the utility model;
Fig. 3 is the structural representation that the collapsible dust absorption blackboard eraser of the utility model connects sweep-up pipe.
In figure, 1. support, 2. hinge, 3. folding eraser, 4. hydraulic cylinder, 5. sweep-up pipe, 6. interior rotating shaft, 7. outer shaft, 8. fixed black blackboard eraser.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
With reference to Fig. 1, Fig. 2, collapsible dust absorption blackboard eraser structure of the present utility model is,
Comprise the support 1 that can move up and down, at support 1, towards the one side of blackboard, a fixed black blackboard eraser 8 is installed, 3, every limit of embodiment folding eraser 3 in fixed black blackboard eraser 8 both sides are hinged with polylith folding eraser 3(figure successively by hinge 2,7 blackboard erasers altogether, the quantity of folding eraser 3 can increase and decrease as required), on fixed black blackboard eraser 8 both sides, be provided with an interior rotating shaft 6 simultaneously, arranged outside at a folding eraser 3 of both sides outermost has an outer shaft 7, is hinged with the hydraulic cylinder 4 of an extended type piston rod between the interior rotating shaft 6 on every limit and outer shaft 7.
See Fig. 3, all blackboard erasers have a plurality of air suction openings towards the surface uniform of blackboard, and all blackboard erasers are all connected with sweep-up pipe 5, and each sweep-up pipe 5 is connected to dust collect plant.While erasing the board, by air suction opening, dust is sucked.Dust collect plant selects motor, impeller, dust filter, disposal box to form.
Operation principle of the present utility model is,
As Fig. 1, folding placement when folding eraser 3 is not worked, the piston rod of two hydraulic cylinders 4 is all in complete retracted mode, and saving takes up room;
As Fig. 2, during folding eraser 3 work, the piston rod of two hydraulic cylinders 4 stretches out simultaneously three folding erasers on both sides 3 is stretched, and fixed black blackboard eraser 8 in addition, form together a large larger rectangle blackboard eraser, erasing area enlarges markedly, and support 1 moves up and down, and realizes the quick wiping of blackboard, during wiping, dust collect plant starts dust-absorbing function, reduce environmental pollution, saved the valuable instructional blocks of time of teachers and students, alleviated cleaning burden.

Claims (4)

1. a collapsible dust absorption blackboard eraser, it is characterized in that, comprise the support (1) that can move up and down, at support (1), towards the one side of blackboard, a fixed black blackboard eraser (8) is installed, on fixed black blackboard eraser (8) both sides, by hinge (2), be hinged with polylith folding eraser (3) successively, on fixed black blackboard eraser (8) both sides, be provided with an interior rotating shaft (6) simultaneously, arranged outside at a folding eraser of both sides outermost (3) has an outer shaft (7), between the interior rotating shaft (6) on every limit and outer shaft (7), is hinged with a hydraulic cylinder (4).
2. collapsible dust absorption blackboard eraser according to claim 1, is characterized in that, the folding eraser on described every limit (3) is at least provided with two.
3. collapsible dust absorption blackboard eraser according to claim 1, is characterized in that, described hydraulic cylinder (4) is the hydraulic cylinder of extended type piston rod.
4. collapsible dust absorption blackboard eraser according to claim 1, it is characterized in that, described folding eraser (3) and fixed black blackboard eraser (8) have a plurality of air suction openings towards the surface uniform of blackboard, all blackboard erasers are all connected with sweep-up pipe (5), and each sweep-up pipe (5) is connected to dust collect plant.
CN201320423592.9U 2013-07-16 2013-07-16 Folding type dust-absorbing blackboard eraser Expired - Fee Related CN203438734U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320423592.9U CN203438734U (en) 2013-07-16 2013-07-16 Folding type dust-absorbing blackboard eraser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320423592.9U CN203438734U (en) 2013-07-16 2013-07-16 Folding type dust-absorbing blackboard eraser

Publications (1)

Publication Number Publication Date
CN203438734U true CN203438734U (en) 2014-02-19

Family

ID=50089807

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320423592.9U Expired - Fee Related CN203438734U (en) 2013-07-16 2013-07-16 Folding type dust-absorbing blackboard eraser

Country Status (1)

Country Link
CN (1) CN203438734U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108973461A (en) * 2018-08-09 2018-12-11 合肥俊刚机械科技有限公司 A kind of self-bring in type rotation office wiping word brush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108973461A (en) * 2018-08-09 2018-12-11 合肥俊刚机械科技有限公司 A kind of self-bring in type rotation office wiping word brush

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

Granted publication date: 20140219

Termination date: 20160716