CN2072482U

CN2072482U - Multi-functional t-square

Info

Publication number: CN2072482U
Application number: CN 90213088
Authority: CN
Inventors: 李新华
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-06-30
Filing date: 1990-06-30
Publication date: 1991-03-06

Abstract

The utility model relates to a multi-functional T-square. An elongated slot is milled on a main T-square; an angle measuring slider block is arranged, and is connected with a rotary scale via a rotary pair; a hollow elongated slot is milled in the rotary scale; a movable scale is sheathed, and is provided with a small circular hole of the sleeve pen; the multi-functional T-square can draw various angular oblique lines, oblique lines, parallel lines and horizontal parallel lines, and can draw various circles or circular arcs, and can measure angles; the bottom of the main T-square is provided with ribs to avoid the surface contact between the scale and the paper surface and improve the cleanliness of the picture plane. The utility model has the advantages of easy fabrication, low cost and novel design, multiple functions, and is an economical and practical and popularized product for the drawing personnel.

Description

Multi-functional T-square

A kind of Multifunction T-square relates to the drawing appliance in the operation transportation.

Though the present drawing T-square that generally uses is simple in structure, cost is low, function singleness, have only picture horizontal line and horizontal line, when needing picture oblique line or oblique line parallel lines, get and look for set square five gussets to cooperate in addition, and have only the parallel lines or the oblique line at several special angles, more can not draw the garden arc and take measurement of an angle, though being arranged at present on the market, high-grade draught machine buys complex structure, bulky, each costliness of valency, have only a small amount of unit to buy one or two, can not extensively popularize.

The purpose of the utility model is to develop a kind ofly to be improved on the basis of existing T-square and is upgraded, can draw various angles oblique line and parallel lines, can draw various diameters garden arc and aperture and energy measurement angle, avoid at the bottom of the chi and the multi-functional T-square of paper plane contact.

This multi-functional T-square, as shown in Figure 1, by main scale (1), angulation slide block (3), slide block spiral shell button (2), rotary ruler (5), moving chi (6), moving chi spiral shell is buckled (4), revolute pair (7), spiral shell button (8) constitutes, main scale (1) left end is a positioning rule, constitute T-shaped with main scale (1), be carved with the metric system scale at the main scale edge, the bottom has convex rib structure, avoid chi to contact with the face of bottom surface, in the middle of main scale (1), be milled with V-type elongated slot (or T type elongated slot), suit angulation slide block (3), slip or the location of angulation slide block (3) in main scale V-type elongated slot (or T type elongated slot), the pine that is decided by slide block spiral shell button (2), tightly, on main scale (1), also be drilled with a plurality of small sircle holes (9) that diameter does not wait, usefulness with the small sircle hole of drawing a picture, angulation slide block (3) is the integral body that protractor and slide block are formed, revolute pair (7) is hollow pivot pin, have 90 ° garden arc groove at protractor one end of angulation slide block (3), the protractor end margin is carved with various angle lines, rotary ruler (5) also has 90 ° garden arc groove by revolute pair (7) one ends, be set with spiral shell button (8) in two above-mentioned garden arc grooves, with the loosening rotation that realizes rotary ruler (5) or tighten up the location, has hollow long chute in the middle of the rotary ruler (5), suit moves chi (6), moving chi (6) can slide in rotary ruler (5) and stretch out, play the purpose of extending rotary ruler (5) length, the location of moving chi (6) is buckled (4) by the moving chi spiral shell of rotary ruler (5) end and is tightened realization, have several small garden holes in the moving chi (6), with cover stroke garden arc, the metric system graduation mark is carved with on rotary ruler (5) both sides, and back of the body bottom has convex rib structure.

Operation principle: the traditional T-square of this Multifunction T-square collection, set square, five gussets, protractor, garden casement plate, the function of garden rule is in one, main scale is vertical mobile picture horizontal line on the plate of garden, rotary ruler can be done 0 ° of-180 ° of rotation, draw the parallax of various angles, garden casement on the main scale can be drawn the garden or the garden arc of minor diameter, moving chi can slide in rotary ruler and stretch out, top small garden hole can overlap various gardens or the garden arc of stroke diameter greater than rotary ruler length, main scale and rotary ruler are used parallel lines and the vertical line that can draw various gradients, with slide block be that the protractor of one can take measurement of an angle and the anglec of rotation of definite rotary ruler, main scale can avoid the face of chi face and paper to contact with the convex rib structure of rotary ruler back of the body reverse side, to improve the picture cleannes.

Fig. 1 is the utility model structure chart;

Fig. 2 is the utility model modular construction figure.

Wherein (A) is main scale and angulation slide block longitudinal sectional view, (B) is rotary ruler and moving chi longitudinal sectional view, (C) is the protractor transverse plane structural representation of angulation slide block, (D) is the round end planar structure schematic diagram of rotary ruler.

Make: each chi and angulation slide block adopt lucite by car, mill, tapping makes, revolute pair adopts the aluminium alloy hollow pins, the spiral shell button is that metal machined or market are bought.

Advantage: a chi is used more, manufacturing is simple, cost is low, and modern design is the economical and practical popularization new technology new product of vast picture staff.

Claims

1, a kind of Multifunction T-square, has main scale, it is characterized in that also having that angulation slide block (3), slide block spiral shell button (2), rotary ruler (5), moving chi (6), moving chi spiral shell are buckled (4), revolute pair (7), spiral shell is buckled and is milled with V-type elongated slot (or T type elongated slot) on (8), the main scale (1), suit angulation slide block (3) and slide block spiral shell are buckled (2), angulation slide block (3) is connected with rotary ruler (5) by revolute pair (7), be milled with hollow long chute on the rotary ruler (5), suit moves chi (6), and rotary ruler (5) end has moving chi spiral shell and buckles (4).

2,, it is characterized in that having several cover small garden holes in the moving chi (6) according to the Multifunction T-square of claim 1.

3, according to the Multifunction T-square of claim 1, it is characterized in that the integral body of angulation slide block (3) for protractor and slide block composition, have 90 ° garden arc groove at protractor one end, rotary ruler (5) leans on revolute pair (7) one ends also to have 90 ° garden arc groove, and the suit spiral shell is buckled (8) in two above-mentioned garden arc grooves.

4,, it is characterized in that main scale (1) is drilled with a plurality of small garden holes (9) that diameter does not wait according to the Multifunction T-square of claim 1.

5,, it is characterized in that the bottom of main scale (1) and rotary ruler (5) has convex tendon according to the Multifunction T-square of claim 1.