CN2157044Y

CN2157044Y - Circle template

Info

Publication number: CN2157044Y
Application number: CN 92243214
Authority: CN
Inventors: 陈庆成
Original assignee: QIYI INDUSTRY Co Ltd
Current assignee: QIYI INDUSTRY Co Ltd
Priority date: 1992-11-30
Filing date: 1992-11-30
Publication date: 1994-02-23
Anticipated expiration: 2002-11-30

Abstract

The utility model relates to a circle drawing board. A round hole whose longitudinal section is in a stair shape is arranged in a ruler board base of an irregular shape, contents are placed in a round drawing board whose board surface is provided with a plurality of perforated small pores which are arranged and spread according to a certain gap in a helical line, the round drawing board is held by a fixed annular ring fixedly connected with the ruler board base. Because the outer edge margin of the round drawing board, the inner margin of the central hole of the rule board base and the inner margin of the fixed annular ring are mutually adapted, the round drawing board can rotate, but the round drawing board can not be supported in a tilting or shaking way between the rule board base and the fixed annular, and after a penpoint is inserted into a corresponding pore, various circle graphs of different sizes can be drawn conveniently.

Description

Circle template

The utility model relates to a kind of Circle template, is specifically related to a kind of round tool ruler plate of picture that makes things convenient for the improvement of picture circle.

Draw in the process of a drawing the drawing personnel, often must be by different assisted mapping plates, the tool palette of particular design such as for example circular Circle template, oval drawing board is with the circular or oval figure of the various different sizes of painting out.Fig. 1 illustrates the Circle template 1 of prior art, is disposed with the circular port 11 of different size on it, along plane distribution on drawing board 1.Though yet this kind structure can conveniently be assisted the circle figure of the different sizes of painting out, has following shortcoming, for example:

1. occupy the bigger area of plane: because of must possessing the circular port of a plurality of different sizes on the drawing board, thereby must be that the circular port of different size is many more, area be just big more.

2. carry inconvenience: as mentioned above,, not only be inconvenient to carry use, and more can increase the probability that fractures and damage because it has bigger area.

3. function and benefit is low: because of having only the function of picture circle, so can't be used for other drawing purpose.

4. fragile: because the circular rings edge of circular port is exposed to the outside fully, so it is fetching when using as easy as rolling off a log causing and other article collisions, and make its circle shape ring edge generation unfilled corner, and then cause the picture bowlder circle figure with the breach flaw can occur.

First purpose of the present utility model is to provide a kind of Circle template of improvement, the circle figure of the specific size of the specific quantity that can draw, not only volume little, be convenient for carrying, and more can reduce cost of manufacture.

Second purpose of the present utility model is to provide a kind of tondo plate structure of improvement, to reach the progressive benefit that can draw the circle figure more than 50 at least.

The 3rd purpose of the present utility model be to provide one have 360 ° of scales and special angle end design (60 ° of angles, 90 ° of angles) thus the improvement Circle template structure of multiple function can be provided simultaneously.

The purpose of this utility model can solve by following technical solution.Improved Circle template of the present utility model includes:

A chi plate base, being provided with a periphery in the central is step-like circular opening, and the top of stairstepping rim is the right angle shallow slot, and the bottom is the chamfering that tilts towards the center of circle, so that hold fixedly ring and circular drawing board, be provided with the inclined side that contracts inwardly in the outer rim of chi plate base back surface;

A circular drawing board, its external diameter is corresponding to the diameter of the inner ring of the right angle shallow slot of the circular opening on the chi plate base, its bottom, circumferential ring limit is skewed, adaptive with the chamfering of circular opening bottom, top tilts to make its ring limit to have symmetrical cusped edge inwardly, on one's body the surface plate of circular drawing board, mint-mark has cross centre line at the center, be provided with at the contiguous position of cross centre line from inside to outside by the specific dimensions spacing and launch a plurality of perforation apertures of arranging, the respective diameters size of utilizing the circle figure that this aperture can be depicted as is arranged in the other mint-mark of aperture by helix;

A fixing ring, establish in the middle of it one with the corresponding circular hole of circular drawing board, its interior ring edge is skewed, and is adaptive with the upper rim of the cusped edge of circular drawing board, its outer ring edge is then adaptive with right angle, the top shallow slot of the hole of chi plate base;

Circular drawing board and fixing ring with chi plate base assemble the back with ultra-sonic welded or other combination fixedly ring follow chi plate base to be fixed together, make circular drawing board can its cusped edge with the chamfering of chi plate base and fixedly the ring edge of ring cooperate and rotatable but can not tilting or be bearing in chi plate base and fixedly between the ring with rocking, a prodigiosin is inserted in the perforation aperture on the circular drawing board with the circle figure accurately that draws.

The utility model describes its feature, functional purpose and using method in detail by illustrated embodiment.In the accompanying drawings,

Fig. 1 is the plane of the Circle template of prior art;

Fig. 2 is the exploded view of the member of Circle template of the present utility model;

Fig. 3 is the vertical view of the Circle template of utility model;

Fig. 4 is the A-A line side cross sectional view along Fig. 3;

Fig. 5 is the operation chart of Circle template of the present utility model.

At first consult Fig. 2,3 and 4, the Circle template of improvement of the present utility model comprises fixedly ring 3 of 2, one on 1, one circular drawing board of an erose chi plate base, wherein:

Chi plate base 1, the two jiaos of special angle designs that are respectively 60 ° of angle ends 11 and 90 ° of angle ends 12 in its bottom, mint-mark has the metric size line on the side at angle.Its upper end side then is an arc of circle limit 13, and along this surface, arc limit inside ring mint-mark 360 ° of scales is arranged.At the center of chi plate base 1, being provided with a periphery is step-like circular opening 14 so that install circular drawing board 2.The top of stairstepping rim is right angle shallow slot 15, and the bottom is that the chamfering 16(that tilts towards the center of circle is shown in Fig. 2 and 4), circular drawing board 2 can be contained in the circular opening 14.Also be provided with a plurality of small embossments 17 that its center pitch circle is concentric with the center hole of chi plate base and five equilibrium is arranged at a distance of the appropriate position of certain distance with it at this chi plate base 1 back side round circular opening 14, be provided with the inclined side 19 that contracts inwardly at base 1 back side outer edge side, make chi plate base 1 can keep spacing slightly with paper when draw circles loop graph shape or picture straight line, the water that anti-this nib draws contacts and the diffusion of falling into oblivion out with chi plate bottom surface.

Figure drawing board 2, its external diameter is corresponding to the inner ring diameter of the shallow slot 15 of the circular opening 14 on the chi plate base 1, its bottom, circumferential ring limit is skewed, adaptive with the chamfering 16 of circular opening 14 bottoms, top tilts to make its ring limit to have symmetrical cusped edge 21 inwardly, be convenient to clamping after making circular drawing board 2 embed circular opening 14, reach the effect that rotates freely.On one's body the surface plate of circular drawing board 2, therein by the cross centre line of the heart, be provided with from inside to outside and launch a plurality of perforation aperture 22(of arrangement shown in Fig. 2 and 4) by the specific dimensions spacing and by helix, and the diameter dimension of the circle figure that 22 of this apertures can be depicted as is arranged (as 1.0,1.1,1.2 centimeters etc. in the other mint-mark of aperture ...), seek position, required hole to make things convenient for the user.

Fixedly ring 3, establish in the middle of it one with circular drawing board 2 corresponding circular holes 31, its interior ring edge 32 is skewed, adaptive with the upper rim of the cusped edge 21 of

circular drawing board

2,33 right angle, top shallow slots 15 with the hole 14 of chi plate base 1 of its outer ring edge are adaptive.After circular drawing board 2 embeds the hole 14 of chi plate base 1, fixing ring 3 is placed on the top of circular drawing board 2, and with ultra-sonic welded or other combination fixedly ring 2 be fixed together with chi plate base 1, make circular drawing board 2 can its cusped edge 21 with the chamfering 16 of chi plate base 1 and fixedly the interior ring edge 32 of ring 3 cooperates and turn but can not tilting or be bearing in chi plate base 1 with rocking and fixedly between the ring 3 so that a prodigiosin draws circle picture shape accurately.

Consult Fig. 5, when using the utility model, the circle figure of diameter 4.9cm if draw, the nib of a tool directly need only be inserted in the aperture 22 of the sign 4.9cm on the circular drawing board 2 is attached in the aperture this tool, and with this insertion point be starting point along circumferential push-jump circular drawing board 2, the diameter that draws when a tool is got back to former starting point once more is the circle figure of 4.9cm.By that analogy, a tool inserts and indicates 1.1cm, 1.2cm ... 5.0cm aperture 22, method that can the be above-mentioned circle figure of corresponding size that draws simply then.

Because too small circle is drawn the bad application of force of system with the method, the utility model on the position on the close circular arc limit of aforementioned chi plate base 1, distribute be provided with a plurality of diameters less than the manhole 18 of 1.0cm to come the circle figure of picture system as ancillary method than minor diameter.

Comprehensively above-mentioned, the Circle template structure of improvement of the present utility model, space structure belongs to unique innovation, and does not see any publication or public use, possesses practicality and novelty really.

Claims

1, a kind of Circle template is characterized in that including:

A chi plate base (1), being provided with a periphery in the central is step-like circular opening (14), the top of stairstepping rim is right angle shallow slot (15), the bottom is the chamfering (16) that tilts towards the center of circle, so that hold fixedly ring (3) and circular drawing board (2), be provided with the inclined side (19) that contracts inwardly in the outer rim of chi plate base back surface;

A circular drawing board (2), its external diameter is corresponding to the diameter of the inner ring of the right angle shallow slot (15) of the circular opening (14) on the chi plate base (1), its bottom, circumferential ring limit is skewed, adaptive with the chamfering (16) of circular opening (14) bottom, top tilts to make its ring limit to have symmetrical cusped edge (21) inwardly, on one's body the surface plate of circular drawing board, mint-mark has cross centre line at the center, be provided with at the contiguous position of cross centre line from inside to outside by the specific dimensions spacing and launch a plurality of perforation apertures (22) of arranging, the respective diameters size of utilizing the circle figure that this aperture can be depicted as is arranged in the other mint-mark of aperture by helix;

A fixing ring (3), establish one and the corresponding circular hole of circular drawing board (2) (31) in the middle of it, its interior ring edge (32) is skewed, adaptive with the upper rim of the cusped edge (21) of circular drawing board, its outer ring edge (33) is then adaptive with right angle, the top shallow slot (15) of the hole (14) of chi plate base (1);

Circular drawing board (2) and fixing ring (3) with chi plate base (1) assemble the back with ultra-sonic welded or other combination fixedly ring (3) be fixed together with chi plate base (1), make circular drawing board (2) can its cusped edge (21) with the chamfering (16) of chi plate base and fixedly the ring edge (32) of ring cooperate and rotatable but can not tilting or be bearing in chi plate base and fixedly between the ring with rocking, a prodigiosin is inserted in the perforation aperture (22) on the circular drawing board with the circle figure accurately that draws.

2,, it is characterized in that on chi plate base (1), having circular hole for the minor diameter of picture system roundlet by the described Circle template of claim 1.

3, by the described Circle template of claim 1, it is characterized in that on the back side of chi plate base (1), also being provided with a plurality of small embossments (17) that its center pitch circle is concentric with the center hole of chi plate base and five equilibrium is arranged at a distance of the appropriate position of certain distance with it, the bottom surface of chi plate base and circular drawing board and drawing are kept at a distance round circular opening (14).