CN204160966U

CN204160966U - A kind of multifunctional drawing tape measure

Info

Publication number: CN204160966U
Application number: CN201420577500.7U
Authority: CN
Inventors: 段宇超; 金凡尧
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2014-10-08
Filing date: 2014-10-08
Publication date: 2015-02-18
Anticipated expiration: 2024-10-08

Abstract

The utility model discloses a kind of multifunctional drawing tape measure, belong to teaching aid field, it comprises tape measure end and traction end two parts, described tape measure end is made up of rotating disk and flexible rule box two parts, it is characterized in that rotating disk and flexible rule box such as are at the semicircle of radius, connected by the rotating shaft of circle centre position, between rotating disk and flexible rule box can 360 degree rotate freely; Described traction end is made up of rotating disk and traction box, and rotating disk and traction box such as are at the semicircle of radius, are connected by the rotating shaft of circle centre position, can 360 degree rotate freely; Described tape measure end is built with flexible tape measure, and the tape measure other end is fixed on traction end, and described rotating disk has angle index, and flexible tape measure has length scale, and assistant drawing tools is placed in traction end inside.Utilize this multifunctional drawing tape measure that traditional teaching aid can be replaced to make the difficult ellipse of making of line segment, angle, triangle, quadrangle, circle and traditional teaching aid, also have the function measuring length and angle concurrently, suitable popularization.

Description

A kind of multifunctional drawing tape measure

Technical field

The utility model relates to a kind of multifunctional drawing tape measure, belongs to teaching equipment technical field.

Technical background

Usually there is volume at present traditional teaching aid comparatively large, the features such as function singleness, and usually need when operation multiple teaching aid with the use of, operate very complicated, and is difficult to make the ellipse commonly used in secondary school education.

Summary of the invention

The purpose of this utility model be for traditional teaching aid be inconvenient to carry, use the shortcoming such as difficulty, function singleness to provide a kind of by the multifunctional drawing tape measure of small and exquisite practicality integrated for several functions.

The purpose of this utility model realizes as follows: spring mechanism is equipped with in described flexible rule box inside, can reclaim flexible tape measure, and described traction end and the flexible tape measure other end are fixed, and the used time can not be placed in traction box described aid.

Owing to have employed said structure, can say that no time tape measure reclaims, tape measure end and traction end can be combined, and are convenient for carrying.

Described top rotary table and lower rotary table be connected in same turn draw up and this rotating shaft through flexible rule box, described top rotary table and lower rotary table are formed together with entirety by this mode and rotate, and are printed with angle index inside described top rotary table and lower rotary table.Angle index is had equally inside traction rotating disk.Described flexible rule box between top rotary table and lower rotary table can 360 degree rotate freely; Described traction box and traction rotating disk between also can 360 degree rotate freely.

Owing to have employed said structure, can directly read the number of degrees turned over when the operation of this multifunctional drawing tape measure, make operating process more convenient.

Described flexible rule box is provided with slide calliper rule switch and axis switch, limits the recovery of flexible tape measure and the rotation of flexible rule box respectively, traction box is also provided with the rotation of axis switch restriction traction box.

Owing to have employed said structure, freely can control that the length of tape measure pull-out and flexible rule box and traction box turn over angle, make to utilize this multifunctional drawing tape measure just can draw various angle, circular arc etc. easily, then with aid with the use of just drawing triangle easily.

All flat thin magnet is housed outside described top rotary table, lower rotary table and traction rotating disk, is through hole in the middle of described aid, just can passes chalk, outer wall has fluting realize the oval function of auxiliary drafting in order to be stuck on flexible tape measure.

Owing to have employed said structure, can this multifunctional drawing tape measure be adsorbed on blackboard by flat thin magnet, liberation both hands, with aid with the use of, the geometric figure of the needs such as triangle, circle, ellipse can be drawn easily.

In sum, the beneficial effect that the utility model produces compared with existing teaching aid is:

Product configurations is simple, and compact, is easy to carry, and it is multiple functional, various geometric figure can be made, instead of traditional ruler, set square, compasses, protractor, ellipsograph, a Realization of Product several functions, instead of multiple teaching aid, reduce costs, economize on resources, operation principle and teaching are combined closely, be convenient to student and understand bookish knowledge, but also solve the problem that traditional teaching aid comparatively accurately can not make ellipse.Suitable popularization.

Accompanying drawing explanation

Accompanying drawing 1 is structural representation of the present utility model;

Accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, accompanying drawing 6, accompanying drawing 7, accompanying drawing 8 are all occupation mode explanation figure;

Accompanying drawing 9 is aid structural representations.

Accompanying drawing 1 note of getting the bid is expressed as: the flexible tape measure of 1-top rotary table, 2-flexible rule box, 3-, 4-lower rotary table, 5-traction box, 6-aid, 7-draw rotating disk.

Concrete enforcement

This description comprises arbitrary feature disclosed in any accessory claim, summary and accompanying drawing, all or can have similar object alternative features and is replaced by other equivalences.

Multifunctional drawing tape measure of the present utility model, embodiment as shown in Figure 1, it comprises top rotary table 1, lower rotary table 4 and flexible rule box 2, described top rotary table 1 and lower rotary table 4 are connected in same rotating shaft, and this rotating shaft is through the center of circle of flexible rule box, in use procedure, top rotary table 1 and lower rotary table 4 are relative to flexible rule box synchronous axial system, angle index is carved with inside described top rotary table 1 and lower rotary table 4, outside is bonded with powerful magnetic sheet, can be used for being fixed on blackboard surface, described flexible rule box 2 is inner can manually pull out and reclaim flexible tape measure for tape structure; Described traction box 5 is fixedly connected with the other end of flexible tape measure, described traction rotating disk 7 is connected with the rotating shaft of traction box 5 by circle centre position, angle index is carved with inside described traction rotating disk 7, outside is bonded with powerful magnetic sheet in order to be fixed on blackboard surface, described aid 6 can put into traction box 5 convenient for collecting, described flexible rule box 2 is provided with the rotation that slide calliper rule switch enclosure axis switch limits the recovery campaign of flexible tape measure 3 and top rotary table 1, lower rotary table 4 respectively, described traction end 5 is provided with the rotation of axis switch in order to restriction traction rotating disk.

This uses novel multifunctional drawing tape measure, and employing following steps are carried out practical function:

1) as shown in Figure 2, be attached on blackboard surface by flexible rule box 2 by the powerful magnetic sheet outside rotating disk 4, the flexible tape measure 3 of pull-out Len req, traction end 5 is affixed on blackboard surface by the magnetic sheet outside rotating disk 7, and now chalk can make required straight line along tape;

2) as shown in Figure 3, flexible rule box 2 is attached on blackboard surface by the powerful magnetic sheet outside rotating disk 1, the flexible tape measure 3 of the required radius of pull-out, locked slide calliper rule switch open flexible rule box 2 upper fastening axle switch, chalk passes the through hole on traction end, stretching flexible tape measure 3, make track, obtain the circle needed;

3) as shown in Figure 4, first use step 1) described in method make straight line, again traction rotating disk 7 and traction end 5 are moved to required angle position (angle value can directly read on lower rotary table 4), in repetition step 1) required angle can be made;

4) as shown in Figure 5, with step 3) similar, last chalk is when the through hole through traction end 4 carries out track description, and when arrival needs angle, shut-down operation can obtain required circular arc;

5) as shown in Figure 6, first carry out step 1) operation, make triangle limit, this limit corresponding vertex can be found utilizing triangular nature, by aid, flexible tape measure is pulled to state shown in Fig. 6, depicts two other limit, namely obtain required triangle;

6) as shown in Figure 7, use and step step 5) similar approach, quadrangle is split as two triangles and makes and obtain required quadrangle;

7) as shown in Figure 8, flexible rule box 2 is affixed on blackboard surface by the powerful magnetic sheet outside rotating disk 4, and using this position as ellipse focus, traction end 5 is being attached to another focus place oval on blackboard surface, then flexible tape measure 3 is pulled out 2a long, locked slide calliper rule switch, aid 6 is utilized to be stuck on flexible tape measure 3 (aid can against flexible tape measure 3 slide), again chalk is inserted aid 6, make track and just can obtain half standard ellipse, in like manner, rotate flexible rule box 2 and traction end 5 a little, just second half track can be made, now just obtain required ellipse.

Claims

1. a multifunctional drawing tape measure, it comprises flexible rule box (2), top rotary table (1), lower rotary table (4), flexible tape measure (3), traction box (5), traction rotating disk (7), aid (6).It is characterized in that, spring mechanism is equipped with in described flexible rule box (2) inside, can reclaim flexible tape measure (3), and described traction end (5) is fixing with flexible tape measure (3) other end; Described flexible rule box (2) between top rotary table (1) and lower rotary table (4) can 360 degree rotate freely; Between described traction box (5) and traction rotating disk (7) also can 360 degree rotate freely; The used time can not be placed in traction box described aid (6), be convenient for carrying, through hole is had in the middle of described aid (6), and also have a same through hole in the middle of traction end (5), two through holes alignment when aid is placed on traction end inside, this through hole just can through chalk in order to mapping.

2. a kind of multifunctional drawing tape measure as claimed in claim 1, it is characterized in that described top rotary table (1) and lower rotary table (4) be connected in same turn draw up and this rotating shaft through flexible rule box (2), described top rotary table (1) and lower rotary table (4) form entirety by this mode and rotate together, described top rotary table (1) and lower rotary table (4) inner side are printed with angle index, directly can read turn over angle when flexible rule box (2) rotates.There is angle index traction rotating disk (7) inner side equally, also directly can read turn over angle when traction box is rotated.

3. a kind of multifunctional drawing tape measure as claimed in claim 2, it is characterized in that described flexible rule box (2) is provided with slide calliper rule switch and axis switch, limit the recovery of flexible tape measure (3) and the rotation of flexible rule box (2) respectively, traction box (5) is also provided with the rotation of axis switch restriction traction box.

4. as claims 2 a kind of multifunctional drawing tape measure of telling, it is characterized in that flat thin magnet is all equipped with in described top rotary table (1), lower rotary table (4) and traction rotating disk (7) outside.

5. a kind of multifunctional drawing tape measure as claimed in claim 1, is characterized in that in the middle of described aid (6) being through hole, just can pass chalk, and realization on flexible tape measure is auxiliary draws oval function in order to be stuck in outer wall fluting.