CN2197226Y

CN2197226Y - Multifunctional magnet compass

Info

Publication number: CN2197226Y
Application number: CN 94216243
Authority: CN
Inventors: 常青民
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-27
Filing date: 1994-06-27
Publication date: 1995-05-17
Anticipated expiration: 2004-06-27

Abstract

The utility model relates to a multifunctional magnet compasses, which is provided with a circular housing body, the inner part of the housing body is provided with an annular magnet, the outer circle of the annular magnet and the inner circle of the housing body are connected, the inner part of the inner circular ring of the annular magnet is provided with a central stable needle, the housing body of the upper part of the housing body passes through a bearing and connects with a circular rotary table, the side of the rotary table is provided with a striking rod hole, the center point of the upper end of the rotary table is provided with a fastening screw bolt, a screw rod extends into the striking rod hole, the inner part of the striking rod hole is provided with a striking rod, the other end of the striking rod is connected with a striking needle head which is vertical to the other end of the striking rod, and the inner part of the striking needle head is provided with a striking needle.

Description

Multifunctional magnet compass

The utility model relates to a kind of magnetic force compasses of using more.

The present a kind of marking gauge that uses, the structure of this marking gauge and common drawing compass is basic identical, and when using its stroke diameter, use extremely inconvenience, even be difficult to finish than great circle, and function singleness.

The purpose of this utility model is to provide a kind of, can draw the major diameter circle easily, and can draw ellipse, can be used with gas cutting device, directly cuts out circle or the oval magnetic force compasses of using more.

The technical solution of the utility model is: how this has a circular shell with the magnetic force compasses, and an annular magnet is housed in housing, and the interior circle of the cylindrical of annular magnet and housing joins, and surely count at the center of being equipped with in the interior annulus of annular magnet; On the top of housing, housing connects a circular turntable by a bearing, is provided with stroke bar hole in the turntable side by the axle center; A fastening bolt is equipped with in center, upper end at turntable, and its screw rod stretches into to be drawn in the bar hole, draws in the bar hole stroke bar is housed, connect a vertical with it scriber head at the other end of drawing bar, the scriber head is a pipe box, in the outside of pipe box one fastening bolt is housed, and in the scriber head scriber is housed.

Characteristics of the present utility model are to slip the place with turntable and the calibration body is equipped with in the corresponding section of turntable in the one side up of described housing.

Characteristics of the present utility model are to be carved with the length scale on described stroke of bar.

Characteristics of the present utility model are also can adorn cutting torch or pencil in described scriber head.

Characteristics of the present utility model are supports that a foot wheel is housed on described stroke of bar.

Characteristics of the present utility model are on described scriber head a turntable also to be housed, and turntable connects the stroke bar again, and an end of drawing bar also connects the stroke syringe needle.

Characteristics of the present utility model are between described housing and annular magnet NULL to be housed.

Advantage of the present utility model and effect are: can draw circle or oval easily on ferrous materials, the location is convenient, accurate.And can also be used with gas cutting device, directly cut out circle or oval.

Fig. 1 is the utility model structural representation.

Fig. 2 is used schematic diagram for the utility model and cutting torch.

Structural representation when Fig. 3 draws complex curve for the utility model.

As Fig. 1, these magnetic force compasses are equipped with in an annular magnet 2, the annular magnet the circular turntable 6 on the steady pin 4 in center in the ring, housing top by circular shell 1, in housing 1, scriber head 9, the scriber 9 of drawing bar 8, draw bar fastening bolt 7 and drawing boom end formed.Drawing bar 8 can twitch in drawing the bar hole, fixes its length by fastening bolt 7, draws on the bar 8 and also is carved with scale.During use, earlier the steady pin 4 in center is aimed at the center of circle of the circle of drawing, because the magnetic force of magnet 2 makes the surface of housing parts ferrous materials of drawing by being adsorbed in firmly, regulate the length (radius of a circle) of drawing bar 8, by bolt 7 fastening after, rotate and draw bar 8, turntable 6 rotates thereupon, and scriber head 9 and scriber 9 can mark the circle that will draw.On housing 1 and turntable 6, calibration body 5 is housed also.

As Fig. 2, the utility model also can be used with gas cutting device, finishes the cutting work of the sheet material of various figures, in scriber head 9 cutting torch is installed, and directly cuts out figure.Draw the support 10 that foot wheel also is installed on the bar 8, drawing the long radius bowlder, can guarantee the precision of radius, simultaneously handled easily.

As Fig. 3, a turntable 12 is housed on scriber head 9, turntable 12 connects stroke bar 13, and an end of drawing bar 13 connects one again and draws syringe needle 14 and scriber 15.This structure can be drawn the figure of complex curve, as ellipse.

Claims

1, a kind ofly use the magnetic force compasses, it is characterized in that: a circular shell is arranged, an annular magnet is housed in housing, the interior circle of the cylindrical of annular magnet and housing joins, and the steady pin in a center is housed in the interior annulus of annular magnet more; Top at housing, housing connects a circular turntable by a bearing, be provided with stroke bar hole in the turntable side by the axle center, a fastening bolt is equipped with at central upper portion place at turntable, its screw rod stretches into to be drawn in the bar hole, draw in the bar hole stroke bar is housed, connect a vertical with it scriber head at the other end of drawing bar, the scriber head is equipped with scriber.

2, as claimed in claim 1ly a kind ofly many use the magnetic force compasses, it is characterized in that slipping and locate and the calibration body is equipped with in the corresponding section of turntable at the one side up of described housing and turntable.

3, as claimed in claim 1 a kind ofly use the magnetic force compasses more, it is characterized in that on described stroke of bar, being carved with the length scale.

4, as claimed in claim 1 a kind ofly use the magnetic force compasses more, it is characterized in that in described scriber head, also can adorning cutting torch or pen.

5, as claimed in claim 1 a kind ofly use the magnetic force compasses more, it is characterized in that on described stroke of bar, being equipped with the support of a foot wheel.

6, describedly a kind ofly many use the magnetic force compasses as claim 1 or 5, it is characterized in that on described scriber head a turntable also being housed, turntable connects the stroke bar, and an end of stroke bar also connects the stroke syringe needle.

7, as claimed in claim 1 a kind ofly use the magnetic force compasses more, it is characterized in that between described housing and annular magnet, NULL being housed.