CN211075316U

CN211075316U - Automatic compasses for drawing of middle school students

Info

Publication number: CN211075316U
Application number: CN201922257568.2U
Authority: CN
Inventors: 徐子涵; 斯宜然
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-07-24
Anticipated expiration: 2029-12-13

Abstract

The utility model discloses an automatic compasses that middle school student drawn and used, including last pen socket and pen socket down, go up the top of pen socket and insert the button, the button is the one end opening, one end confined tubular structure, and button confined one end is located the outside of pen socket, and button open-ended one end is located the inside of pen socket to contact with the one end of swivel cap, many channels are seted up along axial direction to the button. This automatic compasses of middle school student's drawing usefulness, when drawing a circle, aim at the centre of a circle with the fixed needle, the radius of drawing a circle as required, remove second card frame to behind the specified scale on the dipperstick, the refill of automatic pen falls on paper, push down the button, it is rotatory round the screw thread direction of last pen socket to drive the swivel cap, automatic pen can be rotatory around the swivel cap, accomplish the drawing a circle, can drive the spring compression rotatory in the rotation, loosen behind the finger, the spring kick-backs, swivel cap antiport, it rises to initial position to drive swivel cap and button, accomplish automatic drawing a circle.

Description

Automatic compasses for drawing of middle school students

Technical Field

The utility model relates to a drawing tool technical field specifically is an automatic compasses that middle school student's drawing was used.

Background

At present, compasses are main circle tool of drawing in the study article, and the one side of the handwriting of current compasses is pasted and is connected in the one side of flap, 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 connecting at the pivot, and the axis body of pivot is worn to overlap and is connected in the upper end of compasses landing leg, its application method is: 1. measuring the distance between two feet of the compasses by using a ruler as a radius; 2. fixing one end with a needle at one place as a circle center; 3. the one end that has the pencil is rotatory a week, and radius is measured to current compasses leaving the ruler not can not open when drawing the circle, uses loaded down with trivial details inaccuracy, further leads to the reduction of efficiency, and the compasses is used by a lot of middle and primary school students as a common study article, and current compasses must manually go the handle of rotatory compasses when using, uses difficultly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic compasses of middle school student's drawing usefulness has the combination dipperstick, and the problem among the prior art has been solved to the advantage of placing the automatic circle of drawing that raises the efficiency simultaneously finger was pressed.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic compasses for drawing by middle school students comprises an upper pen cap and a lower pen cap, wherein a button is inserted into the top end of the upper pen cap, the button is of a cylindrical structure with an open end and a closed end, the closed end of the button is positioned outside the upper pen cap, the open end of the button is positioned inside the upper pen cap and is in contact with one end of a rotary sleeve, and a plurality of channels are formed in the button along the axial direction;

the bottom end of the lower pen cap is welded with a fixing needle, a coaxial positioning rod is fixed in an opening at the top of the lower pen cap, a spring is sleeved outside the positioning rod, the top end of the positioning rod penetrates through the rotary sleeve and extends into the button, a plurality of guide columns are fixed on the outer wall of the top of the positioning rod along the radial direction, and ports of the guide columns penetrate through the grooves and are fixed on the inner wall of the upper pen cap in a one-to-one correspondence manner;

the rotating sleeve is positioned on the peripheral surface between the upper pen sleeve and the lower pen sleeve and is fixedly provided with a sleeve ring, the rotating sleeve above the sleeve ring is meshed with the upper pen sleeve through threads, and the rotating sleeve below the sleeve ring is inserted into the lower pen sleeve and is fixed with the top end of the spring;

fix first card frame on the outer wall of the lantern ring, the one end of inserting the dipperstick in the first card frame, the bolt of meshing supports on the dipperstick on the first card frame, and the other end of dipperstick inserts in the second card frame, and the second card frame is fixed on the locked loop, and the bolt of meshing supports on the other end of dipperstick on the second card frame, inserts the automatic pen in the locked loop, and the outside bolt of locked loop supports on the automatic pen.

Preferably, the side surface of the first clamping frame is aligned with the scale 0 of the measuring scale and the axis of the fixed needle, and the side surface of the second clamping frame is aligned with the axis of the pen core of the automatic pen.

Preferably, the lowest end of the fixed needle is flush with the lowest end of the automatic pen, and the measuring scale is in a horizontal state.

Preferably, the channel of the button is slotted from the opening direction towards the closing direction.

Preferably, the bottom surface section of the fixed needle is of an inverted trapezoidal structure, and the side length of the trapezoid at the lowest end of the fixed needle is 0.4-0.6 mm.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this automatic compasses of middle school student's drawing usefulness, when drawing a circle, aim at the centre of a circle with the fixed needle, the radius of drawing a circle as required, remove second card frame to behind the specified scale on the dipperstick, the refill of automatic pen falls on paper, push down the button, it is rotatory round the screw thread direction of last pen socket to drive the swivel cap, automatic pen can be rotatory around the swivel cap, accomplish the drawing a circle, can drive the spring compression rotatory in the rotation, loosen behind the finger, the spring kick-backs, swivel cap antiport, it rises to initial position to drive swivel cap and button, accomplish automatic drawing a circle.

Drawings

FIG. 1 is an overall perspective view of the present invention;

FIG. 2 is a view showing a state that the rotary sleeve of the present invention is rotated and lowered;

FIG. 3 is a view showing the rotary sleeve of the present invention in a state of being raised by rotation;

FIG. 4 is an exploded view of the rotary sleeve and the positioning rod of the present invention;

FIG. 5 is a state diagram of the rotating sleeve of the present invention rotating on the positioning rod;

fig. 6 is a state diagram of the rotating sleeve rotating under the positioning rod.

In the figure: 1. putting a pen cap on the pen; 11. a button; 111. a channel; 2. a pen cap is put down; 21. fixing a needle; 22. positioning a rod; 221. a guide post; 3. a rotating sleeve; 4. a spring; 5. a collar; 6. a first clip frame; 7. measuring a scale; 8. a second clamping frame; 9. a locking ring; 10. an automatic pen.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an automatic compass for drawing middle school students includes an upper pen cap 1 and a lower pen cap 2, a button 11 is inserted into the top end of the upper pen cap 1, the button 11 can slide up and down on the top of the upper pen cap 1, the button 11 is a tubular structure with an open end and a closed end, the closed end of the button 11 is located outside the upper pen cap 1, when the button 11 is pressed, the closed end increases the contact area with fingers, so that it is convenient to press, the open end of the button 11 is located inside the upper pen cap 1 and contacts with one end of the rotary cap 3, the open surface of the button 11 contacts with the open surface of the top of the rotary cap 3, the button 11 is provided with a plurality of grooves 111 along the axial direction, the bottom end of the lower pen cap 2 is welded with a fixed needle 21, the bottom surface of the fixed needle 21 has an inverted trapezoidal cross section, the side length of the trapezoid at the lowest end of the fixed needle 21 is 0.4-0.6 mm, the bottom surface of the fixed needle 21 is not pointed but pressed with a flat surface of 0.4-0.6, the force of the fixed needle 21 acting on the paper surface is reduced, the damage to paper caused by too much needle point is avoided, the arrangement is not large, the inaccurate positioning is caused, and the drawing generates deviation, the lantern ring 5 is fixed on the peripheral surface of the rotary sleeve 3 positioned between the upper pen cap 1 and the lower pen cap 2, the rotary sleeve 3 and the lantern ring 5 are fixed together, the rotary sleeve 3 above the lantern ring 5 is meshed with the upper pen cap 1 through threads, the rotary sleeve 3 rotates around a spiral on the upper pen cap 1, the rotary sleeve 3 below the lantern ring 5 is inserted into the lower pen cap 2 and is fixed with the top end of the spring 4, and the top of the spring 4 is driven to synchronously rotate when the rotary sleeve 3 rotates; the outer wall of the lantern ring 5 is fixed with a first clamping frame 6, one end of a measuring scale 7 is inserted into the first clamping frame 6, a meshed bolt on the first clamping frame 6 abuts against the measuring scale 7, the bolt fixes one end of the measuring scale 7, the other end of the measuring scale 7 is inserted into a second clamping frame 8, the second clamping frame 8 is fixed on a locking ring 9, the meshed bolt on the second clamping frame 8 abuts against the other end of the measuring scale 7, the second clamping frame 8 fixes the other end of the measuring scale 7, the radius of a circle is adjusted by moving the second clamping frame 8 on the measuring scale 7, an automatic pen 10 is inserted into the locking ring 9, a bolt outside the locking ring 9 abuts against the automatic pen 10, the locking ring 9 fixes the automatic pen 10 by using the bolt, the replacement is convenient, the lowest end of a fixed needle 21 is flush with the lowest end of the automatic pen 10, the measuring scale 7 is in a horizontal state, the side face of the first clamping frame 6 is aligned with the scale 0 of the measuring scale 7 and the axis of the fixed needle 21, the side of the second clamping frame 8 is aligned with the axis of the pen core of the automatic pen 10, the rotary sleeve 3, the measuring scale 7 and the automatic pen 10 form an H-shaped structure, when a circle is drawn, the circle is drawn according to the radius of the circle required, and after the second clamping frame 8 is moved to the specified scale on the measuring scale 7, the automatic pen 10 draws the specified circle.

Referring to fig. 4-6, a coaxial positioning rod 22 is fixed in the top opening of the lower pen cap 2, a spring 4 is sleeved outside the positioning rod 22, when the spring 4 descends the rotary sleeve 3, when the compression occurs, when no finger pressure is available, the spring 4 recovers elasticity, the rotary sleeve 3 reversely rotates and rises, the top end of the positioning rod 22 passes through the rotary sleeve 3 and extends into the button 11, a plurality of guide posts 221 are fixed on the outer wall of the top of the positioning rod 22 along the radial direction, the ports of the guide posts 221 correspondingly pass through the groove channels 111 and are fixed on the inner wall of the upper pen cap 1 one by one, the positioning rod 22 is fixed with the upper pen cap 1 by the guide posts 221, therefore, the upper pen cap 1 and the lower pen cap 2 are fixed together, the channel 111 of the button 11 is slotted from the opening direction to the closing direction, and the button 11 is lifted or lowered by the slot 111 without contacting with the guide column 221, so that the use is influenced.

The working principle is as follows: swivel sleeve 3, dipperstick 7 and automatic pen 10 constitute H type structure, when drawing a circle, aim at the centre of a circle with fixed needle 21, the radius of drawing a circle as required, after removing second card frame 8 to appointed scale on dipperstick 7, the refill of automatic pen 10 falls on paper, push down button 11, it is rotatory round last 1 screw thread direction to drive swivel sleeve 3, automatic pen 10 can be rotatory around swivel sleeve 3, accomplish the drawing a circle, can drive spring 4 compression rotation in the rotatory, after loosening the finger, spring 4 kick-backs, 3 antiport of swivel sleeve, it rises to initial position to drive swivel sleeve 3 and button 11, accomplish automatic drawing a circle.

In summary, the following steps: this automatic compasses of middle school student's drawing usefulness, when drawing a circle, aim at the centre of a circle with fixed needle 21, the radius of drawing a circle as required, after removing second card frame 8 to appointed scale on the dipperstick 7, the refill of propelling pencil 10 falls on paper, push down button 11, it is rotatory round last pen socket 1's screw thread direction to drive swivel mount 3, propelling pencil 10 can be rotatory around swivel mount 3, accomplish the drawing a circle, can drive spring 4 compression rotation in rotatory, loosen the finger after, spring 4 kick-backs, 3 antiport of swivel mount, it rises to initial position to drive swivel mount 3 and button 11, accomplish automatic drawing a circle.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic compasses of middle school student's drawing usefulness, includes pen socket (1) and pen socket (2) down, its characterized in that: a button (11) is inserted into the top end of the upper pen cap (1), the button (11) is of a cylindrical structure with one open end and one closed end, the closed end of the button (11) is located outside the upper pen cap (1), the open end of the button (11) is located inside the upper pen cap (1) and is in contact with one end of the rotary sleeve (3), and a plurality of channels (111) are formed in the button (11) along the axial direction;

the bottom end of the lower pen cap (2) is welded with a needle (21), a coaxial positioning rod (22) is fixed in an opening at the top of the lower pen cap (2), a spring (4) is sleeved outside the positioning rod (22), the top end of the positioning rod (22) extends into the button (11) through the rotary sleeve (3), a plurality of guide columns (221) are fixed on the outer wall of the top of the positioning rod (22) along the radial direction, and ports of the guide columns (221) penetrate through the channels (111) in a one-to-one correspondence manner and are fixed on the inner wall of the upper pen cap (1);

the rotating sleeve (3) is positioned on the peripheral surface between the upper pen cap (1) and the lower pen cap (2) to fix the lantern ring (5), the rotating sleeve (3) above the lantern ring (5) is meshed with the upper pen cap (1) through threads, and the rotating sleeve (3) below the lantern ring (5) is inserted into the lower pen cap (2) and is fixed with the top end of the spring (4);

fixed first card frame (6) on the outer wall of lantern ring (5), the one end of interpolation dipperstick (7) in first card frame (6), the bolt of meshing supports on dipperstick (7) on first card frame (6), the other end of dipperstick (7) inserts in second card frame (8), second card frame (8) are fixed on locking ring (9), the bolt of meshing supports on second card frame (8) on the other end of dipperstick (7), insert from moving pen (10) in locking ring (9), the outside bolt of locking ring (9) supports on from moving pen (10).

2. The automatic compass for drawing middle school students according to claim 1, wherein the side of the first holder (6) is aligned with the scale "0" of the measuring stick (7) and the axis of the fixed needle (21), and the side of the second holder (8) is aligned with the cartridge axis of the automatic pen (10).

3. The automatic compass for drawing middle school students according to claim 1, wherein the lowest end of the stylus (21) is flush with the lowest end of the automatic pen (10), and the measuring ruler (7) is in a horizontal state.

4. An automatic compass for drawing middle school students according to claim 1, wherein the channel (111) of the button (11) is grooved from the opening direction towards the closing direction.

5. The automatic compasses for drawing middle school students according to claim 1, wherein the bottom surface of said fixed needle (21) has an inverted trapezoidal cross section, and the side length of the trapezoid at the lowest end of the fixed needle (21) is 0.4-0.6 mm.