CN88210779U

CN88210779U - Multipurpose angle and line mapping rule

Info

Publication number: CN88210779U
Application number: CN 88210779
Authority: CN
Inventors: 董全胜; 苏晓萍
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-02-03
Filing date: 1988-02-03
Publication date: 1988-11-30

Abstract

The utility model discloses a multipurpose angle and line mapping ruler, comprising the length, the angle and the radian of the metric system, the Chinese system of weight and measures, the English system. The multipurpose angle and line mapping ruler is composed of a protractor, a straightedge and a staff gauge. The protractor is connected with the straightedge into an integration, the staff gauge can make the circle rotation serving the center of circle of the protractor as an axle and momentarily indicate the degree of the included angle between the staff gauge and the straightedge; the protractor is marked with the radian and the angle; the straightedge is marked with the scale of the metric system and the Chinese system of weight and measures length; the staff gauge is marked with the scale of the metric system and the English system length. The utility model is a convenient tool which is used to measure the angle, draw the triangle, map the straight line and converse the three systems, and the utility model is widely suitable for the primary and the middle school student, a portion of the university student and other relative engineer.

Description

Multipurpose angle and line mapping rule

The utility model is a kind ofly many use the linea angulata graphometric square, is specially adapted to numerous students in middle and primary schools and part university student and relevant professional engineering technical personnel's surveying and mapping tool.

In the existing product, combined type graphometric square produced in USA is comparatively advanced and practical at present topographic equipment.But this graphometric square does not have radian and Chinese system of weights length, does not have any scale on its scale yet, and this has inconvenience when the mapping triangle, also be not easy to the conversion of many systems value.

The utility model purpose is to design a kind of multi-functional linea angulata graphometric square, makes it possess angle measurement simultaneously, draws triangle, surveys and draws straight line and three system scaling functions.

The utility model is that clinometer rule (1) and ruler (2) are integrated, and (2) are positioned at the right side of (1).Clinometer rule is marked with radian and angle.Cross the center of circle of clinometer rule, printing a straight line with ruler (2) parallel direction, a circle core shaft (4) is arranged in the center of circle of clinometer rule, by circle core shaft scale (3) is connected on (1) (2), (3) can rotate the angle of pointing out at any time with (2).(3) end and ruler are isometric, and top reaches to the clinometer rule scale mark, and the top is little circular arc.Cross the center of circle and the scale parallel direction is also printed a straight line, this straight line disconnects at angle, radian scale place, and one spacing is arranged respectively in the both sides, top is 1 ° scale mark so that read scale value, this straight line.The upper limb of ruler (2) is the cun scale, and lower edge is centimetre (cm) scale; The upper limb of scale (3) is cm, and lower edge is inch (inch) scale, and rise on each chi value left side is zero (0), and will accurately start from each zero point on the same straight line, and the readable length of chi is 8～20cm, reaches two chi right-hand members.

Should many need (plastics or organic glass) material of clear transparent to make with the linea angulata graphometric square.

Purposes of the present utility model has: (1) uses the size of the angle measured angular of ruler and scale; (2) draw the angle; (3) utilize scale on two chis to draw the triangle of known both sides and angle easily; (4) carry out public affairs, city, English three system length conversions.

The utlity model has low, multiple functional, easy to use, the advantage such as be easy to carry of cost, be easy to promote.

Description of drawings: (1) clinometer rule (2) ruler (3) scale (4) circle core shaft.

Claims

1, a kind of line graphometric squares of being made up of clinometer rule (1), ruler (2) and scale (3) of using is characterized in that (1) of this graphometric square and (2) are connected as a single entity more, and (1) is marked with angle and radian, and a circle core shaft (4) is arranged on the centre point of (1); (2) be marked with public affairs, Chinese system of weights length; (3) link to each other with (1) (2) by (4), (3) are marked with public affairs, length scale made in Great Britain.

2, according to claim 1 use the linea angulata graphometric square more, it is characterized in that this graphometric square is to be made by transparent plastic or pmma material.