CN201021023Y

CN201021023Y - Compasses ruler

Info

Publication number: CN201021023Y
Application number: CNU2007200200677U
Authority: CN
Inventors: 张继芹; 王兆英; 曹洪泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-29
Filing date: 2007-03-29
Publication date: 2008-02-13
Anticipated expiration: 2017-03-29

Abstract

The utility model discloses a caliper ruler which belongs to the stationery, in particular to the stationery combines a ruler and a caliper. The structure of the caliper ruler comprises an A ruler, a B ruler, a connecting axle, a rotatable scribing pen positioned at the end of the A ruler, and a rotatable fixing needle positioned at the end of the B ruler. The utility model utilizes the two rulers as the arms of the caliper, when the scribing pen and the fixing needle is rotated out the utility model can be used as a caliper, a rectangle hole with scale on the A ruler body can determine the apex point of a plane figure such as a square, a rectangle, a trapezoid, a diamond, and a triangle, etc., then the rectangle hole connects with each apex point to construct, and the semicircle hole can be used as a semicircle apparatus, the template hole of a seven piece puzzle on the b ruler can be used to draw the profile of the seven piece puzzle for making the seven piece puzzle, and the scales on the long sides of the two rulers can be used for measuring the length.

Description

The compasses chi

Technical field

The utility model belongs to a kind of stationery, particularly a kind of stationery by ruler and compasses combination.

Background technology

Compasses, ruler are mathematical educations and learn the most frequently used stationery, its function singleness.

The utility model content

The purpose of this utility model provides a kind of technical scheme of a kind of novel stationery that ruler and compasses are combined.

The technical solution of the utility model is, a kind of compasses chi, and its structure is: by A chi, B chi, connecting axle be positioned at the terminal rotatable bow pen of A chi, be positioned at the terminal rotatable locking pin of B chi and form.

The semicircle orifice of graduated rectangular opening of peripheral band and band angle index is arranged on the described A chi blade, on the described B blade seven-piece puzzle pattern hole is arranged.

There is the length scale on described A chi, B chi two long limits.

The utility model as the compasses arm, can be made two rulers on compasses when the bow pen of ruler end, locking pin back-out and use.The rectangular opening of the band scale on the A chi blade can be determined the summit of planar graphs such as square, rectangle, trapezoidal, rhombus, triangle according to scale, connects each summit then and maps.Semicircle orifice can be made graphometer and use.Seven-piece puzzle pattern hole on the B chi can be used for the drawing profile of seven-piece puzzle, for making seven-piece puzzle usefulness, the scale on the long limit of two chis can be done length tolerance and use.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model,

Fig. 2 is the front view of B chi among Fig. 1, and dash area is a hollow section among the figure,

Fig. 3 is the front view of A chi among Fig. 1, and dash area is a hollow section among the figure.

Among the figure, 1. bow pen, 2. rectangular opening, 3.A chi, 4. semicircle orifice, 5. connecting axle, 6.B chi, 7. seven-piece puzzle pattern hole, 8. locking pin.

The specific embodiment

The specific embodiment of the present utility model is, as shown in the figure:

Embodiment 1, a kind of compasses chi, and its structure is: by A chi 3, B chi 6, connecting axle 5 be positioned at the terminal rotatable bow pen 1 of A chi, be positioned at the terminal rotatable locking pin 8 of B chi and form.

Embodiment 2, a kind of compasses chi, its structure is: by the A chi 3 of the semicircle orifice 4 that graduated rectangular opening of peripheral band 2 and band angle index are arranged on the blade, on the blade by B chi 6, the connecting axle 5 of seven-piece puzzle pattern hole 7 be positioned at the terminal rotatable bow pen 1 of A chi, be positioned at the terminal rotatable locking pin 8 of B chi and form.

Embodiment 3, a kind of compasses chi, its structure is: by the A chi 3 of the semicircle orifice 4 that graduated rectangular opening 2 of peripheral band and band angle index are arranged on the blade, by B chi 6, the connecting axle 5 of seven-piece puzzle pattern hole 7 be positioned at the terminal rotatable bow pen 1 of A chi, be positioned at the terminal rotatable locking pin 8 of B chi and form, the A chi, B chi two is grown limits that the length scale is arranged on the blade.

Claims

1. compasses chi is characterized in that: by A chi, B chi, the connecting axle of rectangle be positioned at the terminal rotatable bow pen of A chi, be positioned at the terminal rotatable locking pin of B chi and form.

2. according to the determined compasses chi of claim 1, it is characterized in that: the semicircle orifice of graduated rectangular opening of peripheral band and band angle index is arranged on the described A chi blade, on the described B chi seven-piece puzzle pattern hole is arranged.

3. according to the determined compasses chi of claim 1, it is characterized in that: there is the length scale on described A chi, B chi two long limits.