CN207808854U - A kind of multifunctional teaching ruler - Google Patents

Abstract

The utility model discloses a kind of multifunctional teaching ruler, including ruler main body, marking groove is equipped on the inside of the ruler main body, it is equipped with graduation mark on the upside of marking groove, is equipped with roller groove on the right side of marking groove, roller groove is internally provided with idler wheel, sliding groove is equipped on the downside of marking groove, sliding groove is equipped with chalk and fixes sliding block.The teaching ruler of multiple functions can be combined into an entirety by the present apparatus, and overall structure is accurate, it is lighter, being required for conventional set teaching ruler can not only be met, but also have the function of assisting picture circle, pass through the angle measuring function of ruler left end fixed point, meet protractor simultaneously and draws the requirement of various special angles, and fixed point bottom is equipped with sucker and can be preferably combined with blackboard, one-handed performance is carried out when teacher being facilitated to use, and greatly facilitates the work that teacher draws in teaching.

Description

A kind of multifunctional teaching ruler

Technical field

The utility model is related to a kind of mathematical education technical fields, more particularly to a kind of multifunctional teaching ruler.

Background technology

In each stage of mathematical education, it is required for teaching of use ruler, the effect of general teaching gauge is for teaching It learns and maps on plate, allow student to understand some algorithms by the auxiliary of figure, when especially for pupil's learning mathematics, longest connects The problems such as tactile is exactly the perimeter area for calculating figure, needs teacher largely to draw in this case, but is made at this stage Teaching ruler is needed to switch over use when in use, be used mostly by ruler, square and protractor is a set of forms Get up cumbersome, waste time, and teacher attends class be required for bringing all a set of teaching ruler every time, it is very inconvenient, it increases Workload when class-teaching of teacher brings inconvenience to teaching, and to this, we need to reform the prior art, make It can more convenient teacher teaching when carry out mapping work.

Invention content

The purpose of this utility model is to provide a kind of multifunctional teaching rulers, to solve mentioned above in the background art ask A variety of teaching rulers can be carried out the combination of science, become the teaching ruler assembly of a multiple functions, more by topic, the device Add and teacher is facilitated to draw in teaching process, reduces the work difficulty of teacher, it is more convenient when teacher being allowed to draw.

To achieve the above object, the utility model provides the following technical solutions：Including ruler main body, in the ruler main body Side is equipped with marking groove, and graduation mark is equipped on the upside of marking groove, roller groove is equipped on the right side of marking groove, roller groove is internally provided with idler wheel, draws Sliding groove is equipped on the downside of wire casing, sliding groove is equipped with chalk and fixes sliding block；

The chalk fixes sliding block and is internally provided with screw propulsion circle, and screw rod, screw rod downside are equipped in screw propulsion circle Equipped with spiral fixed knob, it is equipped with fixed transverse sheet on the upside of screw rod, pushing ram is equipped on the upside of fixed transverse sheet, is equipped on the upside of pushing ram Chalk fixes push jack, and compressed spring is equipped at left and right sides of pushing ram, and mobile locking level is equipped on the right side of fixed transverse sheet, and chalk, which is fixed, to be slided Slip draw-in groove is equipped on the right side of block；

Ruler fixed seat is equipped on the left of the ruler main body, ruler fixed seat is equipped with knob slot, is equipped in knob slot more Function angulation knob, knob slot right side are equipped with angle indicator, and Multi-function measuring angle knob border is equipped with angle measuring calibration, Multi-function measuring Fixed pressing knob is equipped among angle knob；

The Multi-function measuring angle knob bosom is equipped with support shaft, and support shaft passes through ruler fixed seat, fixation to press It is connect with pressing locating plate on the downside of pressure knob, fixing sucking disk is equipped on the downside of Multi-function measuring angle knob.

Preferably, it is 0.3cm that the ruler main body, which uses head, transparent pet materials, and thickness,.

Preferably, the chalk, which is fixed, is equipped with spring groove on the upside of push jack.

Preferably, the slip draw-in groove is T-type groove, and the upper end of T-type groove is equipped with braking fixed card slot.

It is fixed preferably, being respectively equipped with special angle in gap between the ruler fixed seat and Multi-function measuring angle knob Card, and the position of each pair of special angle fixing card is distributed, it is each pair of between angle be 15 degree.

Compared with prior art, the utility model has the beneficial effects that：The present apparatus can be by the teaching ruler knot of multiple functions An entirety is synthesized, and overall structure is accurate, it is lighter, it can not only meet all of conventional set teaching ruler and want It asks, but also has the function of assisting picture circle, by the angle measuring function of ruler left end fixed point, while meeting protractor and drafting The requirement of various special angles, and fixed point bottom is equipped with sucker and can be preferably combined with blackboard, and teacher is facilitated to use Shi Jinhang one-handed performances greatly facilitate the work that teacher draws in teaching.

Description of the drawings

Fig. 1 is the utility model overall structure diagram；

Fig. 2 is that the utility model chalk fixes sliding block cross section structure schematic diagram；

Fig. 3 is the utility model ruler fixed seat structure schematic diagram；

Fig. 4 is the utility model Multi-function measuring angle knob cross section structure schematic diagram.

In figure：1, ruler main body, 2, marking groove, 3, graduation mark, 4, roller groove, 5, idler wheel, 6, sliding groove, 7, chalk fixes Sliding block, 8, screw propulsion circle, 9, screw rod, 10, spiral fixed knob, 11, fixed transverse sheet, 12, pushing ram, 13, chalk fixes Push jack, 14, compressed spring, 15, mobile locking level, 16, slip draw-in groove, 17, ruler fixed seat, 18, knob slot, 19, multi-functional Angulation knob, 20, angle indicator, 21, angle measuring calibration, 22, fixed pressing knob, 23, support shaft, 24, pressing locating plate, 25, fixing sucking disk.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

- 4 are please referred to Fig.1, when mathematics teacher carries out classroom instruction, the present apparatus can be utilized to complete all drawing requirements, Wherein this teaching ruler, which has, measures length, and measurement angle draws straight line, draws angle and draws the function of circle；

The graduation mark 3 in this ruler main body 1 can be directly utilized when using this teaching ruler and measuring length, by scale 3 Then one end and one end of straight line utilize the scale reading of the other end to measure the length of straight line it；

When measuring angle with this teaching ruler, 0 scale of angle measuring calibration 21 and angle indicator 20 can be adjusted On same corresponding position, then by 0 scale of angle measuring calibration 21, a line weight of angle indicator 20 corresponding position and angle It closes, and pins ruler main body 1 and fixed one end of ruler fixed seat 17 using fixing sucking disk 25, then along the folding of measurement angle One end rotary ruler combination main body 1 directly reads 20 indicated amount of angle indicator after ruler main body 1 is Chong Die with angle another side is measured The number of degrees in angle index 21, this number of degrees are exactly the number of degrees for measuring angle；

When carrying out drafting straight line with this teaching ruler, ruler can be adjusted directly by ruler main body pressing on blackboard The angle of main body 1 makes its satisfaction need to draw the angle of straight line, then utilizes marking groove of the chalk directly inside ruler main body 1 It crosses in 2, to complete straight drafting；

When carrying out drafting angle with this teaching ruler, the method that the present apparatus can be utilized to draw straight line first draws the one side at angle, Then it pins Multi-function measuring angle knob 19 and rotates entire ruler main body 1, while recording angular indicator 20 is on angle measuring calibration 21 The scale of walking stops operating after reaching the number of degrees for needing the angle drawn, and then presses fixed pressing knob 22 by right angle Main body 1 is fixed, and limitation is rotated further, and then directly draws the another side at angle, and to complete the drafting at angle, and the present apparatus utilizes The position of special angle is marked in special angle fixing card, to conveniently draw special angle；

When carrying out drafting bowlder using this teaching ruler, directly fixing sucking disk 25 can be utilized present apparatus ruler fixed seat 17 End pressing is fixed on the center of circle for needing to draw circle on blackboard, and chalk, which is then fixed sliding block 7, is adjusted in 1 high scale line of ruler main body 3 positions corresponding with radius of circle, then spiral fixed knob 10 is rotated, screw rod 9 is inwardly pushed, to utilize mobile locking level 15 fix chalk fixation sliding block 7, while fixing push jack using chalk and fixing chalk, then rotational right angle main body 1 one Week, to draw a complete circle.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of multifunctional teaching ruler, including ruler main body（1）, it is characterised in that：The ruler main body（1）Inside is equipped with scribing line Slot（2）, marking groove（2）Upside is equipped with graduation mark（3）, marking groove（2）Right side is equipped with roller groove（4）, roller groove（4）It is internally provided with Idler wheel（5）, marking groove（2）Downside is equipped with sliding groove（6）, sliding groove（6）It is equipped with chalk and fixes sliding block（7）；

The chalk fixes sliding block（7）It is internally provided with screw propulsion circle（8）, screw propulsion circle（8）It is interior to be equipped with screw rod（9）, spiral shell Swing arm（9）Downside is equipped with spiral fixed knob（10）, screw rod（9）Upside is equipped with fixed transverse sheet（11）, fixed transverse sheet（11）On Side is equipped with pushing ram（12）, pushing ram（12）Upside is equipped with chalk and fixes push jack（13）, pushing ram（12）The left and right sides is equipped with pressure Contracting spring（14）, fixed transverse sheet（11）Right side is equipped with mobile locking level（15）, chalk fixation sliding block（7）Right side is equipped with slip draw-in groove （16）；

The ruler main body（1）Left side is equipped with ruler fixed seat（17）, ruler fixed seat（17）It is equipped with knob slot（18）, knob Slot（18）It is interior to be equipped with Multi-function measuring angle knob（19）, knob slot（18）Right side is equipped with angle indicator（20）, Multifunctional angle measuring rotation Button（19）Border is equipped with angle measuring calibration（21）, Multi-function measuring angle knob（19）Centre is equipped with fixed pressing knob（22）；

The Multi-function measuring angle knob（19）Bosom is equipped with support shaft（23）, support shaft（23）Across ruler fixed seat （17）, fixed pressing knob（22）Downside and pressing locating plate（24）Connection, Multi-function measuring angle knob（19）Downside, which is equipped with, to be fixed Sucker（25）.

2. a kind of multifunctional teaching ruler according to claim 1, it is characterised in that：The ruler main body（1）Using transparent Pet materials, and thickness is 0.3cm.

3. a kind of multifunctional teaching ruler according to claim 1, it is characterised in that：The chalk fixes push jack（13）Upside Equipped with spring groove.

4. a kind of multifunctional teaching ruler according to claim 1, it is characterised in that：The slip draw-in groove（16）It is recessed for T-type Slot, and the upper end of T-type groove is equipped with braking fixed card slot.

5. a kind of multifunctional teaching ruler according to claim 1, it is characterised in that：The ruler fixed seat（17）With more work( Energy angle knob（19）Between gap in be respectively equipped with special angle fixing card, and the position of each pair of special angle fixing card is divided equally Cloth, it is each pair of between angle be 15 degree.