CN204236101U - Blackboard for education chalk writings wiping arrangement - Google Patents

Blackboard for education chalk writings wiping arrangement Download PDF

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Publication number
CN204236101U
CN204236101U CN201420656286.4U CN201420656286U CN204236101U CN 204236101 U CN204236101 U CN 204236101U CN 201420656286 U CN201420656286 U CN 201420656286U CN 204236101 U CN204236101 U CN 204236101U
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CN
China
Prior art keywords
blackboard
mill teeth
live
rollers
rail
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
CN201420656286.4U
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Chinese (zh)
Inventor
姜伟
Original Assignee
姜伟
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 姜伟 filed Critical 姜伟
Priority to CN201420656286.4U priority Critical patent/CN204236101U/en
Application granted granted Critical
Publication of CN204236101U publication Critical patent/CN204236101U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of blackboard for education chalk writings wiping arrangement, belong to teaching equipment technical field, its structure comprises the blackboard that wall is arranged, upper rail is provided with above the upper ledge of blackboard, lower guideway is provided with below the lower frame of blackboard, the top edge of upper rail is provided with fixing ear, the lower limb of lower guideway is provided with lower fixing ear, the roll shaft upper end of live-rollers is arranged in upper rail track, the roll shaft lower end of live-rollers is arranged in the track of lower guideway, the end, roll shaft upper end of live-rollers is provided with upper end mill teeth wheel, upper end mill teeth wheel engages with the upper mill teeth bar be arranged in wall, the roll shaft lower end of live-rollers is provided with lower end mill teeth wheel, and mill teeth wheel in lower end engages with the lower mill teeth bar be arranged in wall, the roller surface of live-rollers contacts with blackboard panel pressure.The wiping of pressure type is carried out in the roll speed official post fine hair brush finish that brings of this blackboard for education chalk writings wiping arrangement live-rollers to blackboard panel, save manpower, save time, time saving and energy saving.

Description

Blackboard for education chalk writings wiping arrangement
Technical field
The utility model relates to teaching equipment technical field, specifically a kind of blackboard for education chalk writings wiping arrangement.
Background technology
General, in teaching process, teacher is many to give a lecture student with a lot of writing on the blackboard of chalk-writing and imparts knowledge to students on blackboard.But on the blackboard of limited areal, can not the too many blackboard writing font of disposable accommodation, so after often writing a full screen blackboard, after needing to carry out on-the-spot wiping to blackboard, more again write on blackboard.Thus and thus, it is an activity expending muscle power and time that free-hand blackboard eraser erases the board, and the rhythm erased the board is slow, expends time in classroom.
Summary of the invention
Technical assignment of the present utility model solves the deficiencies in the prior art, provides a kind of blackboard for education chalk writings wiping arrangement.
The technical solution of the utility model realizes in the following manner, this blackboard for education chalk writings wiping arrangement, and its structure comprises the blackboard that wall is arranged,
Above the upper ledge of blackboard, be provided with upper rail, below the lower frame of blackboard, be provided with lower guideway,
The top edge of upper rail is provided with fixing ear, and the lower limb of lower guideway is provided with lower fixing ear,
Upper fixing ear and lower fixing ear are respectively by the bolt that has been threaded, in barrel pre-buried on bolt tail precession wall, bolt body is socketed with spring, and spring one end apical grafting is on the back side of upper fixing ear and lower fixing ear, and spring other end apical grafting is in barrel opening's edge;
The two ends of upper rail and lower guideway are respectively arranged with arc-shaped guide rail, and arc-shaped guide rail connects with the upper rail at place and the track of lower guideway respectively;
The roll shaft upper end of live-rollers is arranged in upper rail track, and the roll shaft lower end of live-rollers is arranged in the track of lower guideway,
The roll shaft upper end of live-rollers is provided with upper rail positive stop; The roll shaft lower end of live-rollers is provided with lower guideway positive stop;
The end, roll shaft upper end of live-rollers is provided with upper end mill teeth wheel, and mill teeth wheel in upper end engages with the upper mill teeth bar be arranged in wall;
The roll shaft lower end of live-rollers is provided with lower end mill teeth wheel, and mill teeth wheel in lower end engages with the lower mill teeth bar be arranged in wall;
The roller surface of live-rollers is provided with fine hair brush finish, and bolt screws the fastening upper rail that makes and contacts with blackboard panel pressure with the roller surface of upper mill teeth bar engagement, lower end mill teeth wheel and lower mill teeth bar engagement and live-rollers to the close upper end mill teeth wheel that causes of metope with lower guideway;
The roller week diameter of live-rollers is greater than the diameter of upper end mill teeth wheel or lower end mill teeth wheel.
Blackboard adopts frosted glass blackboard.
The circular curve of arc-shaped guide rail is tangent with the main body straight line of upper rail and lower guideway respectively, and respectively towards the side that blackboard surface is right.
Upper end mill teeth wheel is identical with lower end mill teeth wheel size, and the number of teeth is identical, and tooth module is identical; Upper mill teeth bar is identical with lower mill teeth bar size, and the number of teeth is identical, and tooth module is identical.
Live-rollers roller week diameters scope in the number range of 1.5 ~ 10 times of upper end mill teeth wheel or lower end mill teeth wheel diameter.
The beneficial effect that the utility model is compared with prior art produced is:
This blackboard for education chalk writings wiping arrangement adopts the roller week diameter of the live-rollers larger than upper end mill teeth wheel to be design, when mill teeth wheel rolls on mill teeth bar, the rotation of the mill teeth wheel produced, the roller of live-rollers week is made to obtain larger linear velocity, thus make the relative blackboard panel of the fine hair brush finish in the roller week of live-rollers produce relative motion, but not roll, the wiping of pressure type is carried out in the speed official post fine hair brush finish that rolling brings to blackboard panel, save manpower, save time, time saving and energy saving, save time in classroom.
This blackboard for education chalk writings wiping arrangement is reasonable in design, structure is simple, safe and reliable, easy to use, be easy to safeguard, have good value for applications.
Accompanying drawing explanation
Accompanying drawing 1 is side-looking structural representation of the present utility model;
Accompanying drawing 2 is main TV structure schematic diagrames of the present utility model;
Accompanying drawing 3 is plan structure schematic diagrames of upper rail of the present utility model.
Mark in accompanying drawing represents respectively:
1, wall, 2, blackboard,
3, upper rail, 4, lower guideway, 5, upper fixing ear, 6, lower fixing ear, 7, bolt, 8, barrel, 9, spring, 10, arc-shaped guide rail,
11, live-rollers, 12, roll shaft, 13, upper rail positive stop, 14, lower guideway positive stop,
15, upper end mill teeth wheel, 16, upper mill teeth bar, 17, lower end mill teeth wheel, 18, lower mill teeth bar,
19, fine hair brush finish.
Detailed description of the invention
Below in conjunction with accompanying drawing, blackboard for education chalk writings wiping arrangement of the present utility model is described in detail below.
As shown in drawings, blackboard for education chalk writings wiping arrangement of the present utility model, its structure comprises the blackboard 2 that wall 1 is arranged,
Above the upper ledge of blackboard 2, be provided with upper rail 3, below the lower frame of blackboard, be provided with lower guideway 4,
The top edge of upper rail 3 is provided with fixing ear 5, and the lower limb of lower guideway 4 is provided with lower fixing ear 6,
Upper fixing ear 5 and lower fixing ear 6 are respectively by the bolt 7 that has been threaded, in barrel 8 pre-buried on bolt 7 afterbody precession wall 1, bolt 7 main body is socketed with spring 9, and spring 9 one end apical grafting is on the back side of upper fixing ear and lower fixing ear, and spring 9 other end apical grafting is in barrel 8 opening's edge;
The two ends of upper rail 3 and lower guideway 4 are respectively arranged with arc-shaped guide rail 10, and arc-shaped guide rail 10 connects with the upper rail 3 at place and the track of lower guideway 4 respectively;
Roll shaft 12 upper end of live-rollers 11 is arranged in upper rail 3 track, and roll shaft 12 lower end of live-rollers 11 is arranged in the track of lower guideway 4,
Roll shaft 12 upper end of live-rollers is provided with upper rail positive stop 13; Roll shaft 12 lower end of live-rollers is provided with lower guideway positive stop 14;
The end, roll shaft 12 upper end of live-rollers is provided with upper end mill teeth wheel 15, and mill teeth wheel in upper end engages with the upper mill teeth bar 16 be arranged in wall;
The roll shaft lower end of live-rollers is provided with lower end mill teeth wheel 17, and mill teeth wheel in lower end engages with the lower mill teeth bar 18 be arranged in wall;
The roller surface of live-rollers 11 is provided with fine hair brush finish 19, and bolt 7 screws and fasteningly makes that upper rail 3 and lower guideway 4 closely cause that upper end mill teeth wheel 15 engages with upper mill teeth bar 16 to metope, lower end mill teeth wheel 17 engages with lower mill teeth bar 18 and the roller surface of live-rollers 11 contacts with blackboard panel pressure;
The roller week diameter of live-rollers 11 is greater than the diameter of upper end mill teeth wheel or lower end mill teeth wheel.When mill teeth wheel rolls on mill teeth bar, the rotation of the mill teeth wheel produced, the roller of live-rollers week is made to obtain larger linear velocity, thus make the fine hair brush finish 19 blackboard panel generation relative motion relatively in the roller week of live-rollers, but not roll, speed official post fine hair brush finish 19 pairs of blackboard panels that rolling brings carry out the wiping of pressure type, save manpower, save time, time saving and energy saving.
Blackboard 2 adopts frosted glass blackboard.
The circular curve of arc-shaped guide rail 10 is tangent with the main body straight line of upper rail and lower guideway respectively, and respectively towards the side that blackboard surface is right.
Upper end mill teeth wheel is identical with lower end mill teeth wheel size, and the number of teeth is identical, and tooth module is identical; Upper mill teeth bar is identical with lower mill teeth bar size, and the number of teeth is identical, and tooth module is identical.
Live-rollers roller week diameters scope in the number range of 1.5 ~ 10 times of upper end mill teeth wheel or lower end mill teeth wheel diameter.
After installation, during use, the crank hinged with roll shaft can be installed additional, obtain transmission by push-and-pull crank, realize the wiping of blackboard.

Claims (5)

1. blackboard for education chalk writings wiping arrangement, comprises the blackboard that wall is arranged, it is characterized in that:
Above the upper ledge of blackboard, be provided with upper rail, below the lower frame of blackboard, be provided with lower guideway,
The top edge of upper rail is provided with fixing ear, and the lower limb of lower guideway is provided with lower fixing ear,
Upper fixing ear and lower fixing ear are respectively by the bolt that has been threaded, in barrel pre-buried on bolt tail precession wall, bolt body is socketed with spring, and spring one end apical grafting is on the back side of upper fixing ear and lower fixing ear, and spring other end apical grafting is in barrel opening's edge;
The two ends of upper rail and lower guideway are respectively arranged with arc-shaped guide rail, and arc-shaped guide rail connects with the upper rail at place and the track of lower guideway respectively;
The roll shaft upper end of live-rollers is arranged in upper rail track, and the roll shaft lower end of live-rollers is arranged in the track of lower guideway,
The roll shaft upper end of live-rollers is provided with upper rail positive stop; The roll shaft lower end of live-rollers is provided with lower guideway positive stop;
The end, roll shaft upper end of live-rollers is provided with upper end mill teeth wheel, and mill teeth wheel in upper end engages with the upper mill teeth bar be arranged in wall;
The roll shaft lower end of live-rollers is provided with lower end mill teeth wheel, and mill teeth wheel in lower end engages with the lower mill teeth bar be arranged in wall;
The roller surface of live-rollers is provided with fine hair brush finish, and bolt screws the fastening upper rail that makes and contacts with blackboard panel pressure with the roller surface of upper mill teeth bar engagement, lower end mill teeth wheel and lower mill teeth bar engagement and live-rollers to the close upper end mill teeth wheel that causes of metope with lower guideway;
The roller week diameter of live-rollers is greater than the diameter of upper end mill teeth wheel or lower end mill teeth wheel.
2. blackboard for education chalk writings wiping arrangement according to claim 1, is characterized in that blackboard adopts frosted glass blackboard.
3. blackboard for education chalk writings wiping arrangement according to claim 1, is characterized in that the circular curve of arc-shaped guide rail is tangent with the main body straight line of upper rail and lower guideway respectively, and respectively towards the side that blackboard surface is right.
4. blackboard for education chalk writings wiping arrangement according to claim 1, it is characterized in that upper end mill teeth wheel is identical with lower end mill teeth wheel size, the number of teeth is identical, and tooth module is identical; Upper mill teeth bar is identical with lower mill teeth bar size, and the number of teeth is identical, and tooth module is identical.
5. blackboard for education chalk writings wiping arrangement according to claim 1, it is characterized in that live-rollers roller week diameters scope in the number range of 1.5 ~ 10 times of upper end mill teeth wheel or lower end mill teeth wheel diameter.
CN201420656286.4U 2014-11-05 2014-11-05 Blackboard for education chalk writings wiping arrangement Expired - Fee Related CN204236101U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420656286.4U CN204236101U (en) 2014-11-05 2014-11-05 Blackboard for education chalk writings wiping arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420656286.4U CN204236101U (en) 2014-11-05 2014-11-05 Blackboard for education chalk writings wiping arrangement

Publications (1)

Publication Number Publication Date
CN204236101U true CN204236101U (en) 2015-04-01

Family

ID=52765648

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420656286.4U Expired - Fee Related CN204236101U (en) 2014-11-05 2014-11-05 Blackboard for education chalk writings wiping arrangement

Country Status (1)

Country Link
CN (1) CN204236101U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110641205A (en) * 2019-11-14 2020-01-03 杨素芳 Electronic blackboard with automatic blackboard eraser
CN110654143A (en) * 2019-11-07 2020-01-07 余桂东 Modularization blackboard

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110654143A (en) * 2019-11-07 2020-01-07 余桂东 Modularization blackboard
CN110641205A (en) * 2019-11-14 2020-01-03 杨素芳 Electronic blackboard with automatic blackboard eraser

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

Granted publication date: 20150401

Termination date: 20151105