CN204367694U - A kind of multi-functional blackboard chi - Google Patents

A kind of multi-functional blackboard chi Download PDF

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Publication number
CN204367694U
CN204367694U CN201520046541.8U CN201520046541U CN204367694U CN 204367694 U CN204367694 U CN 204367694U CN 201520046541 U CN201520046541 U CN 201520046541U CN 204367694 U CN204367694 U CN 204367694U
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CN
China
Prior art keywords
main scale
chi
center
slide opening
circle
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
CN201520046541.8U
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Chinese (zh)
Inventor
张卫枚
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Hunan City University
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Hunan City University
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Publication date
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Priority to CN201520046541.8U priority Critical patent/CN204367694U/en
Application granted granted Critical
Publication of CN204367694U publication Critical patent/CN204367694U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of multi-functional blackboard chi, comprise main scale and secondary chi, described secondary chi is provided with above wherein said main scale, internal gear is provided with in the left end of main scale, external gear is provided with in internal gear, external gear is fixed on secondary chi, the right side of main scale is provided with pen plughole, the shaft of a writing brush is provided with directly over pen plughole, the centre of main scale is provided with notch cuttype slide opening, slide opening inwall is provided with chute, center of circle post and slip lid is provided with in slide opening, center of circle post upper surface is provided with bolt, slip lid lower surface is provided with screwed hole, center of circle post lower surface is provided with sucker, slide opening both sides are provided with brushing below main scale, magnet is provided with between brushing and main scale.This blackboard ruler is a kind of multi-functional blackboard chi integrating ruler, set square, compasses, blackboard eraser.

Description

A kind of multi-functional blackboard chi
Technical field
The utility model relates to realia field, is specifically related to a kind of multi-functional blackboard chi.
Background technology
Ruler is also known as making chi, a chi, and be used to the instrument of setting-out section (especially ruler), amount length, ruler has scale usually, and special shape is left in the centre of some ruler, and person easy to use draws.Ruler is normally made with materials such as plastic cement or iron, stainless steel, lucite, and what also have forms with cardboard, timber, bamboo, aluminium or leather etc. manufactures.As everyone knows, the use of ruler in school's daily teaching is comparatively frequent, and particularly mathematics, physics etc. are needed to the subject teacher drawn, blackboard ruler is absolutely necessary.Common blackboard ruler is made up of wood, and teacher holds comparatively light, conveniently draws on blackboard.But the blackboard ruler that the teachers of usual school use cannot be accomplished to be adsorbed on completely on blackboard, be a teacher draw time, blackboard ruler is easy to mobile or slides, and even drops to the ground, and not only draws inaccurate, also can bring other inconvenience, time-consuming and affect teaching efficiency and operating efficiency.Application number be 201220701046.2 a kind of magnet board chi in ruler, add magnetic patch to be fixed on blackboard by ruler, but because blackboard is very large, in order to by figured more clear during teachers ' teaching, ruler still can be very large, portably use very inconvenient.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multi-functional blackboard chi integrating ruler, set square, compasses, blackboard eraser.
The technical problem that the utility model solves can realize by the following technical solutions: a kind of multi-functional blackboard chi, comprise main scale and secondary chi, described secondary chi is provided with above wherein said main scale, internal gear is provided with in the left end of main scale, external gear is provided with in internal gear, external gear is fixed on secondary chi, the right side of main scale is provided with pen plughole, the shaft of a writing brush is provided with directly over pen plughole, the centre of main scale is provided with notch cuttype slide opening, slide opening inwall is provided with chute, center of circle post and slip lid is provided with in slide opening, center of circle post upper surface is provided with bolt, slip lid lower surface is provided with screwed hole, center of circle post lower surface is provided with sucker, slide opening both sides are provided with brushing below main scale, magnet is provided with between brushing and main scale.
Preferably, described main scale upper surface dual-side is equipped with scale, and described slide opening is Long Circle, and the side of the ladder of slide opening is provided with scale.
Preferably, be provided with triangular base between the described shaft of a writing brush with described main scale to be connected.
Preferably, be provided with circular slide plate in the middle of the post of the described center of circle, slide plate is positioned at described chute.
Preferably, between described sucker and center of circle post for being rotationally connected.
Beneficial effect is: this blackboard ruler adopts main scale and secondary chi two parts to form, by two intermeshing internal gears and external gear between main scale and secondary chi, can adjusting angle and make this blackboard ruler become set square, when length is inadequate, regulate secondary chi to make its level increase length.Slide opening is provided with in the central authorities of main scale, center of circle post set in slide opening can slide in slide opening, and the ladder of slide opening is provided with scale, therefore the position of adjustable center of circle post, and the screwed hole of bolt on the post of the center of circle and slip lid can prohibit solid center of circle post, makes center of circle post fix, plugs piece of chalk in the pen plughole now on the right side of main scale, because center of circle post can be fixed and for being rotationally connected between sucker and center of circle post by the sucker under the post of the center of circle, so time rotate main scale can picture circle.And also brushing is provided with under main scale, blackboard eraser can be it can be used as to use, and blackly between brushing and main scale be provided with magnet, ruler can be adsorbed on blackboard at ordinary times, neither occupy space, the shaft of a writing brush also can insert chalk, decrease the trouble that teacher carries in use back and forth simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of multi-functional blackboard chi of the utility model;
Fig. 2 is the top view of a kind of multi-functional blackboard chi of the utility model;
Wherein 1, secondary chi; 2, main scale; 3, brushing; 4, magnet; 5, internal gear; 6, external gear; 7, center of circle post; 8, sucker; 9, slide plate; 10, slip lid; 11, chute; 12, slide opening; 13, pen plughole; 14, the shaft of a writing brush; 15, triangular base.
Detailed description of the invention
Preferred embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
Fig. 1 and Fig. 2 shows the detailed description of the invention of a kind of multi-functional blackboard of the utility model chi: a kind of multi-functional blackboard chi, comprise main scale and secondary chi 1, described secondary chi 1 is provided with above wherein said main scale, internal gear 5 is provided with in the left end of main scale, external gear 6 is provided with in internal gear 5, external gear 6 is fixed on secondary chi 1, the right side of main scale is provided with pen plughole 13, the shaft of a writing brush 14 is provided with directly over pen plughole 13, the centre of main scale is provided with notch cuttype slide opening 12, slide opening 12 inwall is provided with chute 11, center of circle post and slip lid 10 is provided with in slide opening 12, center of circle post upper surface is provided with bolt, slip lid 10 lower surface is provided with screwed hole, center of circle post lower surface is provided with sucker 8, slide opening 12 both sides are provided with brushing 3 below main scale, magnet 4 is provided with between brushing 3 and main scale.Described main scale upper surface dual-side is equipped with scale, and described slide opening 12 is Long Circle, and the side of the ladder of slide opening 12 is provided with scale.The described shaft of a writing brush 14 be provided with triangular base 15 between described main scale and be connected.Be provided with circular slide plate 9 in the middle of the post of the described center of circle, slide plate 9 is positioned at described chute 11.For being rotationally connected between described sucker 8 and center of circle post.
This blackboard ruler is hung on blackboard, because of magnetic wherein can automatic absorbing on blackboard, can chalk be inserted in the shaft of a writing brush 14, conveniently write.When needs erase the board, blackboard eraser can be done and use.When being used as ruler, can directly use, if when ruler falls short of, open auxiliary chi 1 can increase the length of ruler.When being used as set square, revolute pair chi 1, because being connected for engaging each other of internal-external gear 6 between main scale with secondary chi 1, can blocking dynamic number of times according to secondary chi 1 and learn angle between the two.When doing compasses use, center of circle post tied up to circle centre position and chalk is inserted in pen plughole 13, rotating main scale and then can draw circle.
Based on above-mentioned, this blackboard ruler adopts main scale and secondary chi 1 two parts to form, by two intermeshing internal gears 5 and external gear 6 between main scale and secondary chi 1, and can adjusting angle and make this blackboard ruler become set square, when length is inadequate, secondary chi 1 is regulated to make its level increase length.Slide opening 12 is provided with in the central authorities of main scale, center of circle post set in slide opening 12 can slide in slide opening 12, and the ladder of slide opening 12 is provided with scale, therefore the position of adjustable center of circle post, and the screwed hole of bolt on the post of the center of circle and slip lid 10 can prohibit solid center of circle post, makes center of circle post fix, plugs piece of chalk in the pen plughole 13 now on the right side of main scale, because center of circle post can be fixed and for being rotationally connected between sucker 8 and center of circle post by the sucker 8 under the post of the center of circle, so time rotate main scale can picture circle.And brushing 3 is also provided with under main scale, blackboard eraser can be it can be used as to use, and blackly between brushing 3 and main scale be provided with magnet 4, ruler can be adsorbed on blackboard at ordinary times, neither occupy space, the shaft of a writing brush 14 also can insert chalk, decrease the trouble that teacher carries in use back and forth simultaneously.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (5)

1. a multi-functional blackboard chi, comprise main scale and secondary chi, it is characterized in that: above described main scale, be provided with described secondary chi, internal gear is provided with in the left end of main scale, external gear is provided with in internal gear, external gear is fixed on secondary chi, the right side of main scale is provided with pen plughole, the shaft of a writing brush is provided with directly over pen plughole, the centre of main scale is provided with notch cuttype slide opening, slide opening inwall is provided with chute, center of circle post and slip lid is provided with in slide opening, center of circle post upper surface is provided with bolt, slip lid lower surface is provided with screwed hole, center of circle post lower surface is provided with sucker, slide opening both sides are provided with brushing below main scale, magnet is provided with between brushing and main scale.
2. a kind of multi-functional blackboard chi according to claim 1, is characterized in that: described main scale upper surface dual-side is equipped with scale, and described slide opening is Long Circle, and the side of the ladder of slide opening is provided with scale.
3. a kind of multi-functional blackboard chi according to claim 1, is characterized in that: be provided with triangular base between the described shaft of a writing brush with described main scale and be connected.
4. a kind of multi-functional blackboard chi according to claim 1, is characterized in that: is provided with circular slide plate in the middle of the post of the described center of circle, slide plate is positioned at described chute.
5. a kind of multi-functional blackboard chi according to claim 1, is characterized in that: for being rotationally connected between described sucker and center of circle post.
CN201520046541.8U 2015-01-17 2015-01-17 A kind of multi-functional blackboard chi Expired - Fee Related CN204367694U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520046541.8U CN204367694U (en) 2015-01-17 2015-01-17 A kind of multi-functional blackboard chi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520046541.8U CN204367694U (en) 2015-01-17 2015-01-17 A kind of multi-functional blackboard chi

Publications (1)

Publication Number Publication Date
CN204367694U true CN204367694U (en) 2015-06-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105882254A (en) * 2016-05-13 2016-08-24 安庆师范学院 Teaching ruler with erasing device
CN105882255A (en) * 2016-05-13 2016-08-24 安庆师范学院 Teaching ruler with detachable pens
CN109130626A (en) * 2018-10-26 2019-01-04 刘小亮 A kind of teaching compass ruler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105882254A (en) * 2016-05-13 2016-08-24 安庆师范学院 Teaching ruler with erasing device
CN105882255A (en) * 2016-05-13 2016-08-24 安庆师范学院 Teaching ruler with detachable pens
CN109130626A (en) * 2018-10-26 2019-01-04 刘小亮 A kind of teaching compass ruler

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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: 20150603

Termination date: 20160117