CN210706644U

CN210706644U - Compasses for mechanical drawing of middle school students

Info

Publication number: CN210706644U
Application number: CN201921498178.8U
Authority: CN
Inventors: 徐畅
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-06-09
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a compasses is used in middle school student's mechanical drawing relates to the apparatus technical field of drawing. The utility model discloses a writing pen, a fixing device and a drawing circle subassembly have been cup jointed in writing pen's the outside, and a bar groove has been seted up to writing pen's all sides, and fixing device includes a first lantern ring and a miniature bearing, and first lantern ring cup joints all sides at writing pen, and a first screw hole has been seted up on the top of the first lantern ring. The utility model discloses a with compasses and pen design as an organic whole, when the student needs the drawing, revolve wrong first screw thread post, make the bottom face of first screw thread post and the separation of the inner wall bottom face in bar groove, later remove fixing device to suitable position, revolve wrong second screw thread post with the principle, remove the cyclograph subassembly to suitable position, distance between fixing device and the cyclograph subassembly this moment is the radius of circle promptly, later rotate the cyclograph subassembly, make the pencil stub draw the circle on paper, this compasses can use at any time, the condition that can not find the compasses can not appear.

Description

Compasses for mechanical drawing of middle school students

Technical Field

The utility model belongs to the technical field of the apparatus of drawing, especially relate to a mechanical drawing of middle school student is with compasses.

Background

Compasses are used for drawing circles or strings in mathematics and drawing, and are commonly used for drawing rulers and compasses. At present, most compasses in the market consist of a pen point, a rotating shaft, compass supporting legs, a ruler, a hinge, a pen body, a pen point, a compass tip and a small lug, wherein the lower end of the pen point is inserted and connected at the upper end of the pen body, the lower end of the pen body is in threaded connection at the upper end of the pen point, the flush end of the small lug is welded in the middle of the outer side of the compass supporting legs, and the lower end of the compass supporting legs is clamped and connected at the upper end of the compass tip. The method is characterized in that: the one side of connection at the flap is pasted to the one side of handwriting, and the another side of flap is pasted and is connected in the middle of the one end of check chi, and the crack upper end both sides of handwriting insert the both ends of connection at the pivot, and the axis body of pivot is worn the cover and is connected the upper end at the compasses landing leg, and above-mentioned this kind of compasses is more general, and the convenience that also compares is used, but above-mentioned this kind of compasses is not portable, when the student need use the compasses, still need go to look for the compasses, for this, the utility model designs a can combine a compasses as an organic whole with writing pen to this, solved above problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mechanical compasses for drawing of middle school student through with writing pen and compasses design as an organic whole, has solved current compasses and has forgotten the problem of carrying or can't find the compasses.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a compasses for mechanical drawing of middle school students, which comprises a writing pen, wherein a fixing device and a circle drawing assembly are sleeved outside the writing pen;

a strip-shaped groove is formed in the peripheral side surface of the writing pen;

the fixing device comprises a first lantern ring and a miniature bearing, the first lantern ring is sleeved on the peripheral side surface of the writing pen, a first threaded hole is formed in the top end of the first lantern ring, a connecting ring is fixedly installed at the bottom end of the first lantern ring, a first threaded column is connected to the inner thread of the first threaded hole in a threaded mode, one end of the first threaded column is located inside the strip-shaped groove, the lower surface of the connecting ring is fixedly connected with the upper surface of the outer ring of the miniature bearing, a connecting column is fixedly installed on the lower surface of the inner ring of the miniature bearing, and a conical column is fixedly installed below the connecting column;

the circle drawing assembly comprises a second lantern ring, a second threaded hole is formed in the top end of the second lantern ring, a placing ring is fixedly installed at the bottom end of the second lantern ring, the inner thread of the second threaded hole is connected with a second threaded column, a third threaded hole is formed in the side face of the placing ring, a pencil head is arranged inside the placing ring, the pencil head is fixed through the third threaded column, and the third threaded column is matched with the third threaded hole for use.

Furthermore, scale marks are engraved on the peripheral side surface of the writing pen and are used for measuring the distance between the fixing device and the circle drawing assembly, so that the radius of a circle can be determined.

Further, a lag sleeve is sleeved on the outer side of the conical column, the lag sleeve is a component made of rubber, and the purpose of the lag sleeve is to avoid injury to students caused by the tip of the conical column when the compasses are not used.

Further, the placing ring is used for placing pencil stub, and the height of the pencil stub can be adjusted through the third threaded column.

Further, the bottom end faces of the first threaded column and the second threaded column are in contact with the bottom end face of the inner wall of the strip-shaped groove.

The utility model discloses following beneficial effect has:

the utility model discloses a with compasses and pen design as an organic whole, when the student needs the drawing, revolve wrong first screw thread post, make the bottom face of first screw thread post and the separation of the inner wall bottom face in bar groove, later remove fixing device to suitable position, revolve wrong second screw thread post with the principle, remove the cyclograph subassembly to suitable position, distance between fixing device and the cyclograph subassembly this moment is the radius of circle promptly, later rotate the cyclograph subassembly, make the pencil stub draw the circle on paper, this compasses can use at any time, the condition that can not find the compasses can not appear.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the compasses for mechanical drawing of middle school students of the present invention;

FIG. 2 is an exploded view of the present invention;

fig. 3 is a schematic structural view of the fixing device of the present invention;

FIG. 4 is a schematic structural view of the circle drawing assembly of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1-writing pen, 101-bar groove, 102-scale mark, 2-fixing device, 201-first lantern ring, 202-first threaded hole, 203-connecting ring, 204-first threaded column, 205-micro bearing, 206-connecting column, 207-conical column, 3-circle drawing component, 301-second lantern ring, 302-second threaded hole, 303-placing ring, 304-second threaded column, 305-third threaded hole, 306-pencil head, 307-third threaded column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention relates to a compasses for mechanical drafting of middle school students, which comprises a writing pen 1, wherein a fixing device 2 and a circle drawing component 3 are sleeved outside the writing pen 1;

a strip-shaped groove 101 is formed on the peripheral side surface of the writing pen 1;

the fixing device 2 comprises a first lantern ring 201 and a micro bearing 205, the first lantern ring 201 is sleeved on the peripheral side surface of the writing pen 1, a first threaded hole 202 is formed in the top end of the first lantern ring 201, a connecting ring 203 is fixedly installed at the bottom end of the first lantern ring 201, a first threaded column 204 is connected to the inner thread of the first threaded hole 202 in a threaded mode, one end of the first threaded column 204 is located inside the strip-shaped groove 101, the lower surface of the connecting ring 203 is fixedly connected with the upper surface of the outer ring of the micro bearing 205, a connecting column 206 is fixedly installed on the lower surface of the inner ring of the micro bearing 205, and a tapered column 207 is fixedly installed below the connecting column 206;

circle drawing assembly 3 includes a second lantern ring 301, a second screw hole 302 has been seted up on the top of second lantern ring 301, the bottom fixed mounting of second lantern ring 301 has one to place ring 303, the internal thread of second screw hole 302 is connected with a second screw thread post 304, the week side of placing ring 303 has seted up a third screw hole 305, the inside of placing ring 303 is equipped with a pencil stub 306, pencil stub 306 is fixed through third screw thread post 307, third screw thread post 307 uses with the cooperation of third screw hole 305.

As shown in fig. 1-4, the peripheral side of the writing pen 1 is marked with graduation marks 102, and the graduation marks 102 are used for measuring the distance between the fixing device 2 and the circle drawing assembly 3, so that the radius of the drawn circle can be determined.

Wherein, a lag has been cup jointed in the outside of toper post 207, and the lag is the component of rubber material, sets up the purpose of lag, is to avoid the pointed end of toper post 207 to cause the injury to the student when not using this compasses.

Wherein the placing ring 303 is used for placing a pencil stub 306, and the height of the pencil stub 306 can be adjusted through the third threaded column 307.

Wherein, the bottom end surfaces of the first threaded column 204 and the second threaded column 304 are both in contact with the bottom end surface of the inner wall of the strip-shaped groove 101.

One specific application of this embodiment is: when a student needs drawing, a first threaded column 204 is screwed to separate the bottom end face of the first threaded column 204 from the bottom end face of the inner wall of the strip-shaped groove 101, then a fixing device 2 is moved to a proper position, a second threaded column 304 is screwed in the same way, a circle drawing assembly 3 is moved to a proper position, the distance between the fixing device 2 and the circle drawing assembly 3 is the radius of a circle, then the circle drawing assembly 3 is rotated to draw a circle on paper by a pencil head 306, the bottom end of a conical column 207 is the position of the circle center, at the moment, the conical column 207 is not moved, due to the action of a micro bearing 205, the first sleeve ring 201 rotates along with the circle drawing assembly 3, so that the circle or the circular arc is drawn, when compasses are not needed, the first threaded column 204 and the second threaded column 304 are screwed, the first sleeve ring 201 and the second sleeve ring 301 are moved to the top end of the writing pen 1, and then the first threaded column 204 and the second threaded column 304 are screwed, the writing pen 1 can be normally used.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a compasses for middle school student's mechanical drawing which characterized in that: the pen comprises a writing pen (1), wherein a fixing device (2) and a circle drawing assembly (3) are sleeved on the outer side of the writing pen (1);

a strip-shaped groove (101) is formed in the peripheral side surface of the writing pen (1);

the fixing device (2) comprises a first lantern ring (201) and a miniature bearing (205), the first lantern ring (201) is sleeved on the peripheral side face of the writing pen (1), a first threaded hole (202) is formed in the top end of the first lantern ring (201), a connecting ring (203) is fixedly installed at the bottom end of the first lantern ring (201), a first threaded column (204) is connected to the inner thread of the first threaded hole (202), one end of the first threaded column (204) is located inside the strip-shaped groove (101), the lower surface of the connecting ring (203) is fixedly connected with the upper surface of the outer ring of the miniature bearing (205), a connecting column (206) is fixedly installed on the lower surface of the inner ring of the miniature bearing (205), and a conical column (207) is fixedly installed below the connecting column (206);

circle drawing subassembly (3) include a second lantern ring (301), a second screw hole (302) has been seted up on the top of second lantern ring (301), the bottom fixed mounting of second lantern ring (301) has one to place ring (303), the internal thread of second screw hole (302) is connected with a second screw thread post (304), a third screw hole (305) has been seted up to the week side of placing ring (303), the inside of placing ring (303) is equipped with a pencil head (306), pencil head (306) are fixed through third screw thread post (307), third screw thread post (307) and third screw hole (305) cooperation are used.

2. The compasses for mechanical drawing of middle school students according to claim 1, wherein scale marks (102) are engraved on the peripheral side surface of said writing pen (1).

3. The compasses for mechanical drawing of middle school students according to claim 1, wherein a protective sleeve is sleeved on the outer side of said conical column (207), and said protective sleeve is a rubber member.

4. The compasses for mechanical drawing of middle school students according to claim 1, wherein the bottom end surfaces of said first threaded column (204) and said second threaded column (304) are in contact with the bottom end surface of the inner wall of said strip-shaped groove (101).