CN204641188U

CN204641188U - Scalable ruler

Info

Publication number: CN204641188U
Application number: CN201520371447.XU
Authority: CN
Inventors: 金波; 刘宁; 季维军; 赵娜
Original assignee: Jinhua Polytechnic
Current assignee: Jinhua Polytechnic
Priority date: 2015-05-27
Filing date: 2015-05-27
Publication date: 2015-09-16
Anticipated expiration: 2025-05-27

Abstract

The utility model relates to a kind of scalable ruler, form primarily of main scale, main slip chi, secondary slip chi, catch, bumping post, described main scale while there is T-shaped track, there is rectangular preiection one end of T-shaped track, described main slip chi while there is T-slot, this T-slot coordinates with the T-shaped track of described main scale, so described main slip chi can horizontally slip on described main scale; Described catch is inserted in the square hole of described main slip chi, block the rectangular preiection of T-shaped track one end of described main scale, prevent the slippage of described main slip chi, the described main slip chi back side has L shape groove, rectangular channel, described slip chi is while have L shape groove, and described main slip chi coordinates, and can horizontally slip, described bumping post inserts described slip chi circular hole and embeds in the rectangular channel at the described main slip chi back side, prevents the slippage of described slip chi.Described scalable ruler structure is simple, easy to use, both scalable, can measure again circle and the diameter of cylinder, the degree of depth in hole, also can draw different spacing parallel lines.

Description

Scalable ruler

Technical field

The utility model relates to stationery field, refers in particular to a kind of drawing instrument or teaching aid, and one is both scalable, realize the needs directly measuring different length size, the degree of depth in circle and body diameter, hole can be measured again, drafting different spacing parallel lines, and the scalable ruler of simple structure practicality.

Background technology

As everyone knows, stationery purposes is in the market more single, particularly student's ruler, and need to be placed in writing case, length is generally no more than 200mm, and to measure the length dimension more than 200mm, be added after needing areal survey, the large efficiency of error is low; If survey diameter of a circle, need first to draw diameter line by the method for mapping, then measure with ruler, efficiency is low.If measure the diameter of cylinder, can not measure exactly with common ruler and set square.If draw parallel lines, needs and set square are with the use of just completing.

Summary of the invention

In order to solve the problem, the utility model provides a kind of scalable ruler, both scalable, realize the needs directly measuring different length size, circle and the diameter of cylinder, the degree of depth in hole can be measured again, draw different spacing parallel lines, provide a kind of effective teaching aid can also to the teacher of upper Mechanical Drawing Taught.

The scheme that the utility model adopts is:

Scalable ruler is formed primarily of main scale, main slip chi, secondary slip chi, catch, bumping post, described main scale while there is T-shaped track, there is rectangular preiection one end of T-shaped track, described main slip chi while there is T-slot, this T-slot coordinates with the T-shaped track of described main scale, so described main slip chi can horizontally slip on described main scale.Described catch is inserted in the square hole of described main slip chi, block the rectangular preiection of T-shaped track one end of described main scale, prevent the slippage of described main slip chi, the described main slip chi back side has L shape groove, rectangular channel, described slip chi is while have L shape groove, and described main slip chi coordinates, and can horizontally slip, described bumping post inserts described slip chi circular hole and embeds in the rectangular channel at the described main slip chi back side, prevents the slippage of described slip chi.

The beneficial effects of the utility model are:

Scalable ruler is reasonable in design and easily realize, both scalable, and realize the needs directly measuring different length size, can measure again circle and the diameter of cylinder, the degree of depth in hole, also can draw different spacing parallel lines, structure is simply, easy to use.

Accompanying drawing explanation

Further illustrate below in conjunction with figure of the present utility model:

Fig. 1 is the back view that described scalable ruler launches;

Fig. 2 is the front elevation that described scalable ruler launches;

Front elevation when Fig. 3 is described scalable ruler gathering;

Fig. 4 is the front elevation of described main scale.

Fig. 5 is the back view of described main slip chi;

Fig. 6 is the front elevation of shown main slip chi;

Fig. 7 is the front elevation of shown slip chi

Fig. 8 is the schematic diagram that body diameter measured by described scalable ruler;

Fig. 9 is the schematic diagram that diameter of a circle measured by described scalable ruler;

Figure 10 is the schematic diagram that described scalable ruler draws parallel lines;

In figure, 1. main scale, 2. catch, 3. main slip chi, 4. bumping post, 5. time slip chi, 6. rectangular preiection, 7.L shape groove.

Detailed description of the invention

As Fig. 1 be as described in the back view that launches of scalable ruler, described scalable ruler is formed primarily of main scale (1), catch (2), main slip chi (3), bumping post (4), secondary slip chi (5), described main scale (1) while there is T-shaped track, there is rectangular preiection (6) one end of T-shaped track, described main slip chi (3) while there is T-slot, this T-slot coordinates with the T-shaped track of described main scale (1), so described main slip chi (3) can horizontally slip on described main scale (1).Described catch (2) is inserted in the square hole of described main slip chi (3), block the rectangular preiection (6) of T-shaped track one end of described main scale (1), prevent the slippage of described main slip chi (3), described main slip chi (3) back side has L shape groove (7), rectangular channel, described slip chi (5) is while have L shape groove, coordinate with described main slip chi (3), can horizontally slip, described bumping post (4) inserts described slip chi (5) circular hole and embeds in the rectangular channel at described main slip chi (3) back side, prevent the slippage of described slip chi (5).

As Fig. 3 be as described in scalable ruler draw in time schematic diagram, the length of 0-180mm can be measured.Schematic diagram when Fig. 2 is described main slip chi (3), secondary slip chi (5) pulls open, can measure the length of 170-460mm.Fig. 8 is the schematic diagram that body diameter measured by described scalable ruler, and minor face and institute's survey cylinder of described main scale (1) and described main slip chi (3) are tangent, can read the size of diameter from described main scale (1) mid-scale.Fig. 9 is the schematic diagram that diameter of a circle measured by described scalable ruler, pull open main slip chi (3), make the minor face of described main scale (1) and described main slip chi (3) and institute survey justify tangent, the size of diameter can be read from described main scale (1) mid-scale.If want the degree of depth of measured hole, pull out described slip chi (5) and insert in the hole, can from the depth dimensions of the scale sensing hole described slip chi (5).As Figure 10, mobile described main slip chi (3), the minor face that pencil leans against described main slip chi (3) can draw the parallel lines of desired spacing.

Claims

1. a scalable ruler, form primarily of main scale, main slip chi, secondary slip chi, catch, bumping post, described main scale while there is T-shaped track, there is rectangular preiection one end of T-shaped track, described main slip chi while there is T-slot, this T-slot coordinates with the T-shaped track of described main scale, so described main slip chi can horizontally slip on described main scale; Described catch is inserted in the square hole of described main slip chi, block the rectangular preiection of T-shaped track one end of described main scale, prevent the slippage of described main slip chi, the described main slip chi back side has L shape groove, rectangular channel, described slip chi is while have L shape groove, and described main slip chi coordinates, and can horizontally slip, described bumping post inserts described slip chi circular hole and embeds in the rectangular channel at the described main slip chi back side, prevents the slippage of described slip chi.