CN206056417U

CN206056417U - A kind of device for determining triangle incenter

Info

Publication number: CN206056417U
Application number: CN201620941676.5U
Authority: CN
Inventors: 曹德峰; 李志勇; 崔帅; 卢健; 李彩; 胥佳灵
Original assignee: Shanghai Engineering Center for Microsatellites
Current assignee: Shanghai Engineering Center for Microsatellites
Priority date: 2016-08-25
Filing date: 2016-08-25
Publication date: 2017-03-29
Anticipated expiration: 2026-08-25

Abstract

This utility model is related to field of mechanical technique, more particularly to a kind of device for determining triangle incenter.The device includes four connecting rods, two screens screw rods, screens chi, a bow pens, the covering device is designed using symmetrical structure, diamond shape is constituted by four connecting rods, by rotating four connecting rods, make two adjacent connecting rods parallel with the both sides of triangle, two screens screw rods position screens chi, and bow pen is rule come the interior angle angular bisector for accurately determining triangle, so as to pass through the intersection point precise positioning center of circle of two angular bisectors in the through hole of screens chi.The center of circle of triangle inscribed circle is determined using this utility model device, has the advantages that low production cost, measurement accuracy are high, easy to use.

Description

A kind of device for determining triangle incenter

Technical field

This utility model is related to field of mechanical technique, more particularly to a kind of dress for determining triangle incenter Put.

Background technology

In mechanical processing process, it is sometimes desirable to the maximum circle of intercepting area on the sheet material of one piece of triangle, and inscribe Circle is the maximum circle of triangle inner area, in order to obtain the inscribed circle, it is necessary to precisely determine in which on the triangle sheet material The radius length of the home position and inscribed circle of the circle of contact.And the existing dress that triangle incenter is determined in machining Put and there are problems that cost of determination is high, measurement accuracy is poor, use.

Utility model content

This utility model provides a kind of for the accurate device for determining triangle incenter, to solve prior art It is middle to determine the problems such as poor triangle incenter high cost, measurement accuracy, use inconvenience.

In order to solve the above problems, this utility model provides a kind of device for determining triangle incenter, including Four connecting rods, two screens screw rods, screens chi, a bow pens, it is characterised in that：Four connecting rods are by head Tail is flexibly connected to form diamond shape, two screens screw rods be separately positioned on one group of the rhombus it is diagonal on, with strip The two ends of the screens chi of through hole are respectively sleeved on two screens screw rods, and described bow pen is inserted in the through hole of the screens chi Rule.

Preferably, one end of the connecting rod be concave structure end, the other end be convex structure end, the convex structure end It is combined for inserting the concave structure end.

Preferably, the connecting rod is connected by screw rod head and the tail, and the concave structure end and the convex structure end respectively set A through hole is equipped with, for assigning screw rod or screens screw rod.

Preferably, the through hole of the screens chi is arranged on two relative surfaces, and the through hole is used to accommodate screens screw rod Or bow pen.

Preferably, the screens screw rod is made up of cap body and the body of rod, and the body of rod is made up of two sections of coaxial clyinders, its In, near described cap body one end cylinder diameter more than the cylinder diameter away from cap body one end, away from the circle of cap body one end Cylinder is used for the through hole for assigning the screens chi, is threaded, to twist-on nut on the cylinder of cap body one end.

Preferably, the bow pen is made up of penholder and nib two parts, strip of the penholder in the screens chi Screens movement is carried out in through hole.

Preferably, the width of at least one cross section of penholder is equal with the entire widths of the screens chi.

Preferably, the nib is pyramidal structure.

The device for determining triangle incenter that this utility model is provided is by four connecting rods, two screens Screw rod, screens chi, a bow pen composition, material are common, easy to process, therefore production cost is relatively low.

As the device is by the angular bisector of arbitrarily two interior angles of measure, the intersection point of this two angular bisectors is triangle The center of circle of shape inscribed circle, can confirm that the accuracy of the point by the measure to the 3rd interior angle angular bisector, therefore, determine essence Degree is higher.

As the device is simple and mechanical, the center of circle that can just find out triangle inscribed circle need to be determined twice only, therefore is made With conveniently.

Therefore, by device described in the utility model, realize triangle incenter is carried out it is pinpoint Purpose, has the advantages that low production cost, measurement accuracy are high, easy to use.

Device described in the utility model, can be not only used for determining triangle incenter, is also used as angle etc. Separating device.Which is when as angle equal division device, it is only necessary to which once line can make the angle bisection of any one obtuse angle or acute angle Line.

Description of the drawings

A kind of front view structures for determine the device of triangle incenter of the Fig. 1 for this utility model embodiment Schematic diagram；

A kind of plan structures for determine the device of triangle incenter of the Fig. 2 for this utility model embodiment Schematic diagram；

Fig. 3 does not contain screens chi for a kind of device for determining triangle incenter of this utility model embodiment With the main structure diagram of bow pen；

Main structure diagrams of the Fig. 4 for the connecting rod of this utility model embodiment；

Main structure diagrams of the Fig. 5 for the bow pen of this utility model embodiment；

Description of reference numerals：1- screw rods, 2- connecting rods, 3- screens chis, 4- bow pens, 5- nuts, 6- screens screw rods.

Specific embodiment

With reference to the accompanying drawings and detailed description the scheme that this utility model is provided is elaborated.

A kind of device for determining triangle incenter that this utility model embodiment is provided.Fig. 1 is this reality With a kind of main structure diagram for determining the device of triangle incenter of new embodiment；Fig. 2 is this reality With a kind of overlooking the structure diagram for determining the device of triangle incenter of new embodiment；Fig. 3 is this reality The main view knot of screens chi and bow pen is not contained with a kind of device for determining triangle incenter of new embodiment Structure schematic diagram；Main structure diagrams of the Fig. 4 for the connecting rod of this utility model embodiment；Fig. 5 is implemented for this utility model The main structure diagram of the bow pen of mode.

A kind of device for determining triangle incenter, including four screens screw rods 6, of connecting rod 2, two 3, bow pen 4 of screens chi.When in use, four connecting rods are flexibly connected by head and the tail and form diamond shape, two Screens screw rod be separately positioned on one group of the rhombus it is diagonal on, the two ends of the screens chi with strip through hole are respectively sleeved at On two screens screw rods, described bow pen is rule in inserting the through hole of the screens chi.

Preferably, the connection for the ease of connecting rod each other, the connecting rod in present embodiment as shown in figure 4, its One end is convex structure end, and the other end is concave structure end, and the convex structure end may be inserted into be entered in the concave structure end Row combination.And the connecting rod is connected by screw rod head and the tail, is respectively arranged on the convex structure end and the concave structure end There is a through hole, for assigning screw rod or screens screw rod.

Preferably, for the ease of line, as shown in Figure 2, the through hole of the screens chi sets the screens chi of present embodiment Put on two relative surfaces, the through hole is used to accommodate screens screw rod or bow pen.

It is furthermore preferred that the screens screw rod is made up of cap body and the body of rod, the body of rod is made up of two sections of coaxial clyinders, its In, near described cap body one end cylinder diameter more than the cylinder diameter away from cap body one end, away from the circle of cap body one end Cylinder is used for the through hole for assigning the screens chi, is threaded, to twist-on nut on the cylinder of cap body one end.

Preferably, the bow pen of present embodiment is as shown in figure 5, the bow pen is made up of penholder and nib two parts, The penholder carries out screens movement in the strip through hole of the screens chi.The width of at least one cross section of penholder It is equal with the entire widths of the screens chi.The nib is pyramidal structure.

The principle of this measure device institute foundation is：In a rhombus, two diagonal can correspond to two groups of interior angles of decile, In a triangle, three angular bisectors of three interior angles intersect at a point, and the intersection point is the center of circle of triangle inscribed circle.

During use, the triangle sheet material that will first intercept inscribed circle is steadily placed, and is then steadily placed this device On the triangle sheet material, with a screens screw rod 6 as rotating shaft, rotate described in two of 6 two ends of screens screw rod Connecting rod 2 so as to parallel with two adjacent sides of an interior angle of the triangle sheet material respectively, by the rectangular of the screens chi 3 Body through hole is enclosed within the cylinder of two 6 ends of screens screw rod, and the bow pen 4 is inserted the screens chi 3 then Rule in cuboid through hole, so, the angular bisector of an interior angle of the triangle sheet material is just marked.

The angular bisector of another interior angle of the triangle sheet material can be marked with same method, described in above-mentioned two Angular bisector necessarily intersects at a point, then the intersection point is the incenter of the triangle sheet material.

Whether can accurately verify that verification method is to the position of the incenter during use：With same Method can mark the angular bisector of remaining that interior angle of the triangle sheet material, if the angular bisector passes through front two The intersection point of angular bisector described in bar, then the intersection point be the triangle sheet material incenter；If the angle Bisector does not pass through the intersection point of front two angular bisectors, then the intersection point is not necessarily the interior of the triangle sheet material The circle of contact center of circle, needs to repeat aforesaid operations process, redeterminates the angular bisector of the triangle sheet material interior angle, until San Tiaojiao Till bisector intersects at a point.

Can be seen that by above-mentioned embodiment described in the utility model a kind of for determining triangle incenter Device have low production cost, measurement accuracy it is high, it is easy to use the features such as.

The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art Art personnel, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications also should It is considered as protection domain of the present utility model.

Claims

1. a kind of device for determining triangle incenter, including four connecting rods, two screens screw rods, a screens Chi, a bow pen, it is characterised in that：Four connecting rods are flexibly connected by head and the tail and form diamond shape, two screens Screw rod be separately positioned on one group of the rhombus it is diagonal on, the two ends of the screens chi with strip through hole are respectively sleeved at two On screens screw rod, described bow pen is rule in inserting the through hole of the screens chi；Determined by the intersection point rule twice The home position of triangle inscribed circle.

2. a kind of device for determining triangle incenter as claimed in claim 1, it is characterised in that the connection One end of bar is concave structure end, and the other end is convex structure end, and the convex structure end is used to insert the concave structure end It is combined.

3. a kind of device for determining triangle incenter as claimed in claim 2, it is characterised in that the connection Bar is connected by screw rod head and the tail, and the concave structure end and the convex structure end are each provided with a through hole, for assigning spiral shell Bar or screens screw rod.

4. a kind of device for determining triangle incenter as claimed in claim 1, it is characterised in that the screens The through hole of chi is arranged on two relative surfaces, and the through hole is used to accommodate screens screw rod or bow pen.

5. a kind of device for determining triangle incenter as claimed in claim 2, it is characterised in that the screens Screw rod is made up of cap body and the body of rod, and the body of rod is made up of two sections of coaxial clyinders, wherein, near the cylinder of described cap body one end Body is used to assign the logical of the screens chi away from the cylinder of cap body one end with diameter greater than the cylinder diameter away from cap body one end Hole, is threaded on the cylinder of cap body one end, to twist-on nut.

6. a kind of device for determining triangle incenter as claimed in claim 1, it is characterised in that the line Pen is made up of penholder and nib two parts, and the penholder carries out screens movement in the strip through hole of the screens chi.

7. a kind of device for determining triangle incenter as claimed in claim 6, it is characterised in that the penholder The width of at least one cross section is equal with the entire widths of the screens chi.

8. a kind of device for determining triangle incenter as claimed in claim 6, it is characterised in that the nib For pyramidal structure.