CN202986526U

CN202986526U - Sucker locating type compasses

Info

Publication number: CN202986526U
Application number: CN 201220623726
Authority: CN
Inventors: 李林; 卢传福
Original assignee: MACHENG SONGBU ELEMENTARY SCHOOL
Current assignee: MACHENG SONGBU ELEMENTARY SCHOOL
Priority date: 2012-11-22
Filing date: 2012-11-22
Publication date: 2013-06-12
Anticipated expiration: 2022-11-22

Abstract

The utility model provides a pair of sucker locating type compasses which at least comprises a main rod, an auxiliary rod, a handle and a pen installed at the bottom end of the auxiliary rod and used for drawing. The top of the main rod and the top of the auxiliary rod are connected through a hinge, the handle is located at the top end of the main rod, and a sucker for enabling the main rod to be fixed on an object plane is installed at the bottom end of the main rod. The sucker is installed at the bottom end of the main rod. The pair of sucker locating type compasses overcomes the shortcomings in the prior art and is simple in structure, convenient to use and high in using safety.

Description

A kind of sucker locate mode compasses

Technical field

The utility model relates to a kind of compasses, is specifically related to a kind of compasses that position by sucker, belongs to stationery.

Background technology

Compasses are drawn round instrument and are absolutely necessary in student's daily study as a kind of, but the mobile jib of present most of compasses all adopts needle point to position, and this locate mode has been brought a lot of inconvenience.At first homework book or textbook even can be pricked out a lot of duck eyes on desk drawing the bowlder needle point, not only affect attractive in appearancely, and cause damage; The while needle point is because its tip is sharp, and careless slightly very likely the bundle arrived oneself on hand when the student uses, and causes the injury of bleeding, and brings misery to the student.

Summary of the invention

The utility model provides a kind of Cupula fixed type compasses, and these compasses have solved deficiency of the prior art, and it is simple in structure, and is easy to use, and safe to use.

Realize that the technical scheme that the utility model above-mentioned purpose adopts is:

A kind of sucker locate mode compasses, at least comprise mobile jib, secondary bar, handle and the pen that is used for drawing that is installed on secondary bar bottom, wherein the top of mobile jib and secondary bar is connected through the hinge, handle is positioned at the top of mobile jib, be equipped with on the bottom of mobile jib and can make mobile jib be fixed on sucker on object plane, described sucker is installed on the bottom of mobile jib by universal ball joint.

Described pen is fixed in the bottom of secondary bar by the pen cap, the pen cap is articulated in the bottom of secondary bar, and the pen cap is provided with the clamping screw for fixing pen.

Be evenly distributed with scale on described mobile jib, described scale is provided with two, lays respectively at inboard and the outside of mobile jib, and wherein outside graduation mark be used for to be measured length, and unit is centimetre; Inboard graduation mark is used for reading radius size.

The material of described sucker is the flexible and transparent elastomeric material.

The Cupula fixed type compasses that the utility model provides have following advantage: these compasses are simple in structure, and the sucker of its mobile jib bottom can firmly be fixed on mobile jib on the plane of object, as homework book or blackboard.Be connected by universal ball joint due between sucker and mobile jib in the process of drawing circle, so mobile jib can freely rotate.The bottom of secondary bar is fixed with pen by the pen cap simultaneously, and the pen cap is hinged on the bottom of secondary bar, can rotate around secondary bar, thus convenient the use.

Description of drawings

The overall structure schematic diagram of the Cupula fixed type compasses that Fig. 1 provides for the utility model;

In figure: the 1-mobile jib; The secondary bar of 2-; The 3-handle; The 4-pen; The 5-universal ball joint; The 6-sucker; The 7-scale; The 8-pen cap; The 9-clamping screw.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is done detailed specific description.

The overall structure of the sucker locate mode compasses that the utility model provides as shown in Figure 1, formed by mobile jib 1, secondary bar 2, handle 3 and pen 4, wherein the top of mobile jib 1 and secondary bar 2 is connected through the hinge, handle 3 is positioned at the top of mobile jib 1, be equipped with on the bottom of mobile jib 1 and can make mobile jib be fixed on sucker 6 on object plane, described sucker 6 is installed on the bottom of mobile jib 1 by universal ball joint 5.For sucker 6 firmly is adsorbed on body surface, the material of described sucker 6 is the flexible and transparent elastomeric material.The bottom that pen 4 is installed on secondary bar 2 is installed fixingly by the pen cap 8, the described pen cap 8 is articulated in the bottom of secondary bar 2, and the pen cap 8 is provided with the clamping screw 9 for fixing pen 4.

Also be evenly distributed with scale 7 on mobile jib 1, described scale is provided with two, lays respectively at inboard and the outside of mobile jib, and wherein outside graduation mark be used for to be measured length, and unit is centimetre; Inboard graduation mark is used for reading radius size, and according to angle between mobile jib and secondary bar, thereby the scale that reads both crossover sites places is determined the size of radius.

Claims

1. sucker locate mode compasses, it is characterized in that: comprise at least mobile jib, secondary bar, handle and the pen that is used for drawing that is installed on secondary bar bottom, wherein the top of mobile jib and secondary bar is connected through the hinge, handle is positioned at the top of mobile jib, be equipped with on the bottom of mobile jib and can make mobile jib be fixed on sucker on object plane, described sucker is installed on the bottom of mobile jib by universal ball joint.

2. sucker locate mode compasses according to claim 1 is characterized in that: described pen is fixed in the bottom of secondary bar by the pen cap, the pen cap is articulated in the bottom of secondary bar, and the pen cap is provided with the clamping screw for fixing pen.

3. sucker locate mode compasses according to claim 1, is characterized in that: be evenly distributed with scale on described mobile jib.

4. sucker locate mode compasses according to claim 1, it is characterized in that: the material of described sucker is the flexible and transparent elastomeric material.