CN208392933U - A kind of mathematics diagraph - Google Patents

Abstract

A kind of mathematics diagraph belongs to mapping appliance technology, it is therefore intended that, solve the problems, such as it is of the existing technology have a single function with it is inconvenient for operation.The utility model includes: protractor ontology, and the protractor ontology includes the angulation unit and setting ruler unit of semicircle shape；Two revolving fragments that one end is rotatablely connected with the center location of the angulation unit of the protractor ontology respectively, the revolving fragment other end is prong structure, the graduation mark of prong structure and angulation unit overlap joint, the revolving fragment are 180 ° with respect to the rotational angle of protractor ontology；And the rotation branch of one end and the rotation connection of any one revolving fragment, rotation branch's other end are prong structure, when rotation branch and the opposite revolving fragment, is completely coincident.A kind of mathematics diagraph of the utility model integrates protractor, set square and graduated scale function, while may be implemented quickly to draw angular bisector and measuring the function of the corresponding central angle of camber line, and structure is simple, easy to operate.

Description

A kind of mathematics diagraph

Technical field

The utility model belongs to mapping appliance technology, and in particular to a kind of mathematics diagraph.

Background technique

Student is when performing mathematical calculations and joining practice, it is often necessary to corresponding parameter is measured, it is more to obtain Magnitude；In actual learning life process, it usually needs be equipped with various mapping apparatus to reach corresponding purpose；In the prior art A specific apparatus is needed in order to complete a certain specific operation, needs to use protractor when such as angle measurement, draws straight line When need to use ruler, need to use set square when drawing angle；Use the self-existent form of each apparatus substantially in the prior art, Switch inconvenient to use；In addition, when measuring the operation such as the corresponding central angle of a certain camber line or the angular bisector for making some angle, It needs to combine a variety of apparatus and do corresponding auxiliary line just to measure or paint；Diagraph in the prior art is largely adopted With separate form, have a single function, it is inconvenient for operation.

Utility model content

The purpose of this utility model is that proposing a kind of mathematics diagraph, solution is of the existing technology to have a single function and grasps Make inconvenient problem.

To achieve the above object, a kind of mathematics diagraph of the utility model includes:

Protractor ontology, the protractor ontology include the angulation unit and setting ruler unit of semicircle shape；

Two revolving fragments that one end is rotatablely connected with the center location of the angulation unit of the protractor ontology respectively, it is described The revolving fragment other end is prong structure, and the graduation mark overlap joint of prong structure and the angulation unit, the revolving fragment is with respect to angulation The rotational angle of device ontology is 180 °；

And the rotation branch of one end and the rotation connection of any one revolving fragment, rotation branch's other end are tip knot Structure, when rotation branch and the opposite revolving fragment, are completely coincident.

Protractor ontology upper surface is provided with the scale of angulation unit and the scale of ruler unit, the revolving fragment It is rotatablely connected with protractor ontology lower end surface.

The angulation unit middle position of semicircle shape is provided with semicircle shape hole, and outside forms semi-annular shape structure.

It is provided with recessed anchor ring on the inside of semi-annular shape structure lower end surface, the recessed anchor ring and the revolving fragment Prong structure cooperation.

Ruler unit end face is triangular structure.

The prong structure of the revolving fragment is right angled triangle, the short right-angle side of the right angled triangle and the revolving fragment Strip rotation portion end be fixedly connected, the strip rotation portion of the long right-angle side of right angled triangle and the revolving fragment A side wall point-blank.

The rotation branch connects with the middle position of the revolving fragment.

The rotation branch and the revolving fragment junction are provided with lock-screw.

The protractor ontology and revolving fragment are transparent configuration.

The utility model has the following beneficial effects: a kind of mathematics diagraph of the utility model can be with when carrying out angle measurement By the extending angle line of revolving fragment, measure more acurrate；When carrying out camber line center of circle angular measurement, pass through revolving fragment and rotation branch Subtended angle positioning camber line two endpoints, rotate back to angulation unit realize rapid survey, do not need other auxiliary implements, while not It needs to do auxiliary line on paper；When drawing angular bisector, pass through two of the straight line and angle of a revolving fragment and angulation unit Boundary line, which is overlapped, determines angle, then determines that the survey picture of angle separated time is realized in angle separated time position by another revolving fragment；This reality Integrate protractor, set square and graduated scale function with a kind of novel mathematics diagraph, while may be implemented quickly to draw angle The function of bisector and the corresponding central angle of measurement camber line, structure is simple, easy to operate.

Detailed description of the invention

Fig. 1 is a kind of mathematics diagraph structural front view of the utility model；

Fig. 2 is a kind of mathematics diagraph structure rearview of the utility model；

Structural schematic diagram when Fig. 3 is a revolving fragment rotation in a kind of mathematics diagraph of the utility model；

Fig. 4 is structural schematic diagram when revolving fragment and rotation branch separate in a kind of mathematics diagraph of the utility model；

Wherein: 1, protractor ontology, 101, angulation unit, 102, ruler unit, 103, recessed anchor ring, 2, revolving fragment, 3, Rotate branch, 4, lock-screw.

Specific embodiment

The embodiments of the present invention is described further with reference to the accompanying drawing.

Referring to attached drawing 1- attached drawing 4, a kind of mathematics diagraph of the utility model includes:

Protractor ontology 1, the protractor ontology 1 include the angulation unit 101 and setting ruler unit of semicircle shape 102；

Two revolving fragments that one end is rotatablely connected with the center location of the angulation unit 101 of the protractor ontology 1 respectively 2,2 other end of revolving fragment is prong structure, the graduation mark overlap joint of prong structure and the angulation unit 101, the rotation Piece 2 is 180 ° with respect to the rotational angle of protractor ontology 1；

And the rotation branch 3 of one end and the rotation connection of any one revolving fragment 2,3 other end of rotation branch are point Header structure, when rotation branch 3 and the opposite revolving fragment 2, are completely coincident.

1 upper surface of protractor ontology is provided with the scale of angulation unit 101 and the scale of ruler unit 102, institute State revolving fragment 2 and 1 lower end surface of protractor ontology rotation connection.

101 middle position of angulation unit of semicircle shape is provided with semicircle shape hole, and outside forms semi-annular shape structure.

Recessed anchor ring 103, the recessed anchor ring 103 and the rotation are provided on the inside of semi-annular shape structure lower end surface The prong structure of rotor 2 cooperates, and avoids rubbing off graduation mark when reciprocating rotation revolving fragment 2, while guaranteeing entire protractor sheet 1 lower end surface of body and paper fitting.

102 end face of ruler unit is triangular structure.

The prong structure of the revolving fragment 2 is right angled triangle, the short right-angle side of the right angled triangle and the rotation The strip rotation portion end of piece 2 is fixedly connected, the strip rotation of the long right-angle side of right angled triangle and the revolving fragment 2 One side wall at position is point-blank.

The rotation branch 3 connects with the middle position of the revolving fragment 2, guarantees when revolving fragment 2 rotates, revolving fragment 2 Branch 3 is an integral structure with rotation.

The rotation branch 3 and 2 junction of the revolving fragment are provided with lock-screw 4, guarantee revolving fragment 2 and rotation branch The camber line angle of 3 measurements is constant.

The protractor ontology 1 and revolving fragment 2 are transparent configuration.

Scale, the confirmable length for drawing each line can be had on the revolving fragment 2.

Claims (9)

1. a kind of mathematics diagraph, comprising:

Protractor ontology (1), the protractor ontology (1) include the angulation unit (101) and setting ruler unit of semicircle shape (102)；

It is characterized in that, further including

Two revolving fragments that one end is rotatablely connected with the center location of the angulation unit (101) of the protractor ontology (1) respectively (2), revolving fragment (2) other end is prong structure, the graduation mark overlap joint of prong structure and the angulation unit (101), institute It is 180 ° that revolving fragment (2), which are stated, with respect to the rotational angle of protractor ontology (1)；

And the rotation branch (3) of one end and the rotation connection of any one revolving fragment (2), rotation branch (3) other end are It is completely coincident when prong structure, the rotation branch (3) and the opposite revolving fragment (2).

2. a kind of mathematics diagraph according to claim 1, which is characterized in that protractor ontology (1) upper surface is set It is equipped with the scale of angulation unit (101) and the scale of ruler unit (102), the revolving fragment (2) and the protractor ontology (1) lower end surface is rotatablely connected.

3. a kind of mathematics diagraph according to claim 1 or 2, which is characterized in that in the angulation unit (101) of semicircle shape Meta position, which installs, is equipped with semicircle shape hole, and outside forms semi-annular shape structure.

4. a kind of mathematics diagraph according to claim 3, which is characterized in that semi-annular shape structure lower end surface it is interior Side is provided with recessed anchor ring (103), the prong structure cooperation of the recessed anchor ring (103) and the revolving fragment (2).

5. a kind of mathematics diagraph according to claim 1, which is characterized in that ruler unit (102) end face is three Angular structure.

6. a kind of mathematics diagraph according to claim 1, which is characterized in that the prong structure of the revolving fragment (2) is The strip rotation portion end of right angled triangle, the short right-angle side of the right angled triangle and the revolving fragment (2) is fixed to be connected It connects, a side wall of the strip rotation portion of the long right-angle side of right angled triangle and the revolving fragment (2) is point-blank.

7. a kind of mathematics diagraph according to claim 1, which is characterized in that the rotation branch (3) and the rotation The middle position of piece (2) connects.

8. a kind of mathematics diagraph according to claim 1 or claim 7, which is characterized in that the rotation branch (3) and the rotation Rotor (2) junction is provided with lock-screw (4).

9. a kind of mathematics diagraph according to claim 1, which is characterized in that the protractor ontology (1) and revolving fragment It (2) is transparent configuration.