CN2513786Y

CN2513786Y - Multifunctional protractor

Info

Publication number: CN2513786Y
Application number: CN 01270845
Authority: CN
Inventors: 魏立策
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-11-19
Filing date: 2001-11-19
Publication date: 2002-10-02
Anticipated expiration: 2011-11-19

Abstract

The utility model relates to a multi-functional protractor, consisting of a protractor board, an indication rod, a graduated scale and a side rod. The utility model is characterized in that the ends of the graduated scale and the side rod are connected by a shaft. The graduated scale and the side rod are connected with the dictation rod and the protractor board by the shaft respectively. The protractor and the indication rod are connected by the shaft. The distances of the protractor board, the indication rod, the graduated scale and the shaft on the side rod to the shaft are the same. The utility model integrates the functions of the protractor, the graduated scale, a set square, a T square and a bow compass, providing convenience for the scientific research and teaching, especially for the school students, besides the utility model is favorable to the intelligence development of the school students.

Description

Multi-function protractor

The utility model relates to a kind of multi-function protractor, relates to specifically that a kind of to collect functions such as protractor, rule, set square, T-square and compasses be instruments used for education or the drafting instrument or the schooling apparatus of one.

At present, along with developing rapidly of Chinese national economy, variation with rapid changepl. never-ending changes and improvements is also taking place in scientific research of China and educational undertaking, and the demand of especially various instruments used for education or apparatus is increasing, various products are enriching market, bring great convenience for education, production and scientific research.Yet, so far instruments used for education or the apparatus of selling such as protractor, rule, set square, T-square and compasses gone up by society, because their function singleness of its structural reason, this has brought inconvenience for scientific research and teaching, has particularly increased a lot of unnecessary burdens and trouble to students in middle and primary schools.In a word, the structure of existing instruments used for education or drafting instrument or schooling apparatus need be improved.

The purpose of this utility model just is to design that a kind of to collect functions such as protractor, rule, set square, T-square and compasses be the multi-function protractor of one, to remedy the deficiency of existing market.

The purpose of this utility model is achieved in that it is made up of protractor plate (1), indicating arm (2), rule (3) and side rod (4), the termination that it is characterized in that rule (3) and side rod (4) is coupling by axle (5), rule (3) and side rod (4) are coupling with indicating arm (2) and protractor plate (1) respectively by axle (5), and protractor plate (1) and indicating arm (2) are coupling by axle (5).

Its feature also is: protractor plate (1), indicating arm (2), rule (3) and side rod (4) are gone up axle (5) and are equated with distance between spool (5).

The utility model compared with prior art, functions such as its collection protractor, rule, set square, T-square and compasses are one, brought convenience for scientific research and teaching, particularly alleviated burden, reduced trouble, help students in middle and primary schools' intellectual development to students in middle and primary schools.

Below in conjunction with drawings and Examples the utility model is further described.

Accompanying drawing 1 is the utility model theory structure schematic diagram.

Accompanying drawing 2 is the utility model structure chart.

Accompanying drawing 3 is the utility model user mode (T-square) figure.

Accompanying drawing 4 is the enlarged drawing of parts indicating arm 2 in the accompanying drawing 2.

Wherein: 1, protractor plate (DOE), 2, indicating arm (BOF), 3, rule (ABH), 4, side rod (ADC), 5, axle, 6, groove, 7, the perspective window.

Referring to accompanying drawing, in its changeability of utilizing the rhombus that is coupling of the utility model and the geometry vertical angles equate, corresponding angles mutually or the like principle design.It is made up of protractor plate (DOE) 1, indicating arm (BOF) 2, rule (ABH) 3 and side rod (ADC) 4, its structure is that the termination of rule (ABH) 3 and side rod (ADC) 4 is coupling by axle 5, rule (ABH) 3 and side rod (ADC) 4 are coupling with indicating arm (BOF) 2 and protractor plate (DOE) 1 respectively by axle 5, protractor plate (DOE) 1 and indicating arm (BOF) 2 are coupling by axle 5, present embodiment parts indicating arm (BOF) 2 is provided with perspective window 7, so that by having an X-rayed window 7 reading angle number more easily.Axle 5 equates with the distance of 5 on axle on protractor plate (DOE) 1, indicating arm (BOF) 2, rule (ABH) 3 and the side rod (ADC) 4, forms the rhombus of a variable-angle like this.

During use, the angle that the angle of change rhombus just can be measured various angle numbers easily and draw all size easily.During with A point in the accompanying drawing 2 and the coincidence of O point, the utility model can be adjusted to ruler or T-square and use.The groove 6 that utilizes parts rule (ABH) 3 to be provided with can be fixed paintbrush, so that be that justify in the center of circle with the A point, when compasses use.In accompanying drawing 4, can locating pin be set, with the fixing number of degrees at institute's angle measurement or drawn angle easily at G point place.

Claims

1, a kind of multi-function protractor, it is made up of protractor plate (1), indicating arm (2), rule (3) and side rod (4), the termination that it is characterized in that rule (3) and side rod (4) is coupling by axle (5), rule (3) and side rod (4) are coupling with indicating arm (2) and protractor plate (1) respectively by axle (5), and protractor plate (1) and indicating arm (2) are coupling by axle (5).

2, multi-function protractor according to claim 1, its feature also is: protractor plate (1), indicating arm (2), rule (3) and side rod (4) are gone up axle (5) and are equated with distance between spool (5).