CN212499645U - Compasses capable of automatically drawing core - Google Patents
Compasses capable of automatically drawing core Download PDFInfo
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- CN212499645U CN212499645U CN202021013955.8U CN202021013955U CN212499645U CN 212499645 U CN212499645 U CN 212499645U CN 202021013955 U CN202021013955 U CN 202021013955U CN 212499645 U CN212499645 U CN 212499645U
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- compasses
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- cambered surface
- lead
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Abstract
The utility model relates to a compasses that can go out core automatically, include the compasses head, rotationally locate the stitch and the plumbous foot of compasses head, compasses head top is equipped with handheld portion, the stitch lower extreme is equipped with the compasses needle, be equipped with automatic mechanism of going out core on the plumbous foot, be equipped with the plumbous core on the automatic mechanism of going out core. The utility model relates to a compasses field, through automatic mechanism of loosing core, but automatic mechanism of loosing core automatically regulated lead core exposes partial length, can keep the part that the lead core exposes to keep suitable length, the person of facilitating the use draws the circle, can be quick disposable draw the circle, it needs the secondary to mend the circle to have prevented that the lead core is too short, also prevented that the lead core from too long resulting in the fracture of lead core, the length of having solved the pencil lead core needs often to be adjusted, lead core length overlength or short influence the compasses and draw the circle, the compasses draw the technical problem of circle inefficiency.
Description
Technical Field
The utility model relates to a compasses field especially relates to a can go out compasses of core automatically.
Background
The compasses are used for drawing a circle or a string and are commonly used for drawing by a ruler, the compasses comprise a compasses head, a pin and a lead foot which are rotatably arranged on the compasses head, a handheld part is arranged at the top of the compasses head, the pin is provided with a compasses needle, the lead foot is provided with a lead core, when the compasses draw a circle, the length of the lead core is gradually shortened, the length of the lead core needs to be frequently adjusted, inconvenience is brought to a user, if the length of the lead core is too long, the lead core is likely to be broken by excessive force during circle drawing, if the lead core is too short, the lead core is likely to rotate without contacting with paper, the incomplete circle drawing is caused, the part of the circle which is not drawn needs to be supplemented, the circle drawing efficiency is low, therefore, the lead core needs to keep proper length, the circle drawing efficiency of the compasses can be improved, and the circle can be drawn at one time.
Chinese patent application No.: 201821188258.9 discloses a stationery technical field's a compasses, including the adapter, the lateral wall left and right sides rotates through the pivot respectively around the inner chamber of adapter and is connected with dwang and dead lever, cavity, two have all been opened to dwang and dead lever the inside of cavity all is provided with a rotatory section of thick bamboo, left side the lateral wall all rotates through the outer wall of pivot with the dwang around a rotatory section of thick bamboo and is connected, the right side the lateral wall all rotates through the outer wall of pivot with the dead lever around a rotatory section of thick bamboo and is connected, and the bottom of dwang is pegged graft there is the pencil point. Use this compasses to need often to adjust the length of pencil stub, if the length overlength of pencil stub, exert oneself too greatly during the circle of drawing probably leads to the pencil stub rupture, if the pencil stub is short excessively, when probably leading to the pencil stub to rotate, does not touch the paper, leads to the incompleteness of circle drawing, still need replenish the circle part not drawn again, draws the circle inefficiency.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the problems, the utility model provides a compasses capable of automatically drawing out a core. The length of the pencil core of the compasses needs to be adjusted frequently, the pencil core is too long or too short, the compasses draw circles, and the compasses draw circles with low efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the compasses capable of automatically coring comprise a compass head, a stitch and a lead foot, wherein the stitch and the lead foot are rotatably arranged on the compass head, a handheld part is arranged at the top of the compass head, a compass needle is arranged at the lower end of the stitch, an automatic coring mechanism is arranged on the lead foot, and a lead core is arranged on the automatic coring mechanism.
Further:
the lead feet are provided with annular fixing parts, and the automatic core-pulling mechanism is detachably connected to the fixing parts through threads.
The compasses needle sets up to plumbous foot direction slope, the compasses needle with the angle between the stitch is 120 degrees to 170 degrees.
The lower end of the automatic core-pulling mechanism is a circular truncated cone-shaped circular truncated cone part, the radius of the top surface of the circular truncated cone part is larger than that of the bottom surface of the circular truncated cone part, and the inclination angle of the lead foot is equal to the angle of the inclined surface of the circular truncated cone part.
The outer side wall of the handheld part is provided with a plurality of anti-slip strips.
The stitch includes rotatable coupling in the first connecting portion of compasses head, connects in the first cambered surface portion of first connecting portion, connects in the first cambered surface portion of first cambered surface portion, the compasses needle is connected in first cambered portion, the lead foot includes rotatable coupling in the second connecting portion of compasses head, connects in the second cambered surface portion of second connecting portion, first cambered surface portion with the semi-cylindrical shape that second cambered surface portion set up for opposition, first cambered surface portion with the second cambered surface portion forms a cylindrical shape when covering.
The first cambered surface portion and the second cambered surface portion are respectively provided with a first clamping portion which is mutually clamped and matched.
At least one handle groove is oppositely arranged at the joint of the first cambered surface part and the second cambered surface part.
Still include a compasses lid, first cambered surface bottom border with second cambered surface bottom border is equipped with the second card portion of putting of mutually supporting fixed connection with the compasses lid, first cambered part is established to the compasses cover.
By adopting the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses lead foot one side is equipped with automatic mechanism of loosing core, automatic mechanism of loosing core can automatically regulated lead core expose partial length, make the part that the lead core exposes keep suitable length, the person of facilitating the use draws the circle, can draw the circle in a very quick disposable, it needs the secondary to mend the drawing circle to prevent that the lead core is too short, prevent that the lead core from too long leading to the fracture of lead core, and do not need the people to often adjust the length of lead core, after drawing the circle, automatic mechanism of loosing core automatically regulated lead core exposes the part, be convenient for draw the circle next time; furthermore, the automatic core-pulling mechanism is detachably connected with the fixing part in a threaded manner, so that the automatic core-pulling mechanism is detachably connected, the lead core is conveniently added to the automatic core-pulling mechanism, and the maintenance and the replacement of the automatic core-pulling mechanism are convenient; furthermore, the compass needle is obliquely arranged towards the direction of the lead foot, and the stitch is not easy to shield the sight of the compass needle, so that a user can accurately fix the compass needle on the paper; furthermore, the inclination angle of the lead foot is equal to the inclined plane angle of the circular table part, so that the compasses cover can be covered conveniently, the compasses are cylindrical integrally and have a stereoscopic impression, the compasses are more attractive, the stitch and the lead foot are both of a sheet structure, the compasses are light and handy, and are convenient to carry and beneficial for a user to draw circles; furthermore, when the stitch and the lead foot are combined, the handle groove can facilitate the user to pull the stitch and the lead foot apart, and the plurality of anti-slip strips of the handheld part can prevent slipping when the handheld part is rotated.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the compasses cover disassembled from the compasses;
FIG. 3 is a schematic view of the compasses in an open state;
FIG. 4 is a schematic view of the compasses at another angle of view when in an open state;
FIG. 5 is a schematic structural view of the automatic core-ejecting mechanism for disassembling the compasses;
FIG. 6 is a schematic view of the compasses in an exploded state.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings and detailed description.
Referring to fig. 1 to 6, the compasses capable of automatically drawing out a core provided in the present embodiment include a compass head 1, a stitch 2 and a lead foot 3 rotatably disposed on the compass head 1, a hand-held portion 4 is disposed on the top of the compass head 1, a plurality of anti-slip strips 41 are disposed on the outer side wall of the hand-held portion 4, a compass needle 20 is disposed at the lower end of the stitch 2, the compass needle 20 is inclined toward the lead foot 3, and an angle between the compass needle 20 and the stitch 2 is 165 degrees; an automatic core-discharging mechanism 5 is arranged on the lead foot 3, and a lead core 50 is arranged in the automatic core-discharging mechanism 5. The lead leg 3 is provided with an annular fixing portion 30, and the automatic core ejecting mechanism 5 is detachably screwed to the fixing portion 30. The lower end of the automatic core-discharging mechanism 5 is a circular truncated cone-shaped circular truncated cone part 51, the radius of the top surface of the circular truncated cone part 51 is larger than that of the bottom surface, and the inclination angle of the lead foot 3 is equal to the angle of the inclined surface of the circular truncated cone part 51.
The foot 2 and the lead foot 3 are rotatably connected to the head 1 by a screw 10.
The angle between the compass needle 20 and the needle foot 2 may be generally set to 120 to 170 degrees, as the case may be.
The compass needle 20 and the first arc portion 23 may be integrally formed, or may be detachably connected to each other, as the case may be.
The utility model discloses also can not set up compasses lid 6, specifically set up according to the condition.
The utility model discloses also can not set up handle groove 72, at this moment, when stitch 2 and plumbous foot 3 are closed, when opening stitch 2 and plumbous foot 3, the phenomenon of skidding probably appears, is unfavorable for opening of stitch 2 and plumbous foot 3, specifically sets up according to the circumstances.
The pins 2 and the lead pins 3 may be made of plastic or metal materials, which are well known and will not be described herein.
The utility model discloses also can not set up first card portion 71, specifically set up according to the circumstances.
The first engaging portion 71 and the second engaging portion 73 can be connected by interference fit or other methods, which are well known in the art and will not be described herein.
The automatic core-ejecting mechanism 5 is a known technology, and can adopt Chinese patent application numbers: 201620210748.9, the disclosed smart pencil for propelling lead; other configurations may be used and are not described in detail herein.
The utility model discloses a working method is:
the compasses cover 6 is pulled open, the hand is placed in the handle groove 72 and is pulled out stitch 2 and lead foot 3, draw the radius of circle as required, adjust the distance of compasses needle 20 and refill 50, aim at the position with compasses needle 20 and fix on paper, the rotatory handheld portion 4 of finger, draw the circle on the paper again, after drawing the circle, the part that exposes behind the refill 50 drawing the circle will shorten, the length of automatically regulated refill 50 of automatic mechanism 5 of loosing core makes things convenient for drawing the circle next time. The automatic core-pulling mechanism 5 can be taken out in a rotating mode, the automatic core-pulling mechanism 5 is convenient to add the lead core 50, maintain or replace, and the automatic core-pulling mechanism is simple and practical.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. The utility model provides a can go out compasses of core automatically, includes the compasses head, rotationally locates the stitch and the plumbous foot of compasses head, compasses head top is equipped with handheld portion, the stitch lower extreme is equipped with the compasses needle, its characterized in that: the lead foot is provided with an automatic core-pulling mechanism, and the automatic core-pulling mechanism is provided with a lead core.
2. The compasses capable of automatically coring according to claim 1, wherein: the lead feet are provided with annular fixing parts, and the automatic core-pulling mechanism is detachably connected to the fixing parts through threads.
3. The compasses capable of automatically coring according to claim 1, wherein: the compasses needle sets up to plumbous foot direction slope, the compasses needle with the angle between the stitch is 120 degrees to 170 degrees.
4. The compasses capable of automatically coring according to claim 3, wherein: the lower end of the automatic core-pulling mechanism is a circular truncated cone-shaped circular truncated cone part, the radius of the top surface of the circular truncated cone part is larger than that of the bottom surface of the circular truncated cone part, and the inclination angle of the lead foot is equal to the angle of the inclined surface of the circular truncated cone part.
5. The compasses capable of automatically coring according to claim 1, wherein: the outer side wall of the handheld part is provided with a plurality of anti-slip strips.
6. The compasses capable of automatically ejecting core according to any one of claims 1 to 5, wherein: the stitch includes rotatable coupling in the first connecting portion of compasses head, connects in the first cambered surface portion of first connecting portion, connects in the first cambered surface portion of first cambered surface portion, the compasses needle is connected in first cambered portion, the lead foot includes rotatable coupling in the second connecting portion of compasses head, connects in the second cambered surface portion of second connecting portion, first cambered surface portion with the semi-cylindrical shape that second cambered surface portion set up for opposition, first cambered surface portion with the second cambered surface portion forms a cylindrical shape when covering.
7. The compasses of claim 6 capable of automatic coring, wherein: the first cambered surface portion and the second cambered surface portion are respectively provided with a first clamping portion which is mutually clamped and matched.
8. The compasses of claim 7 capable of automatic coring, wherein: at least one handle groove is oppositely arranged at the joint of the first cambered surface part and the second cambered surface part.
9. The compasses of claim 7 capable of automatic coring, wherein: still include a compasses lid, first cambered surface bottom border with second cambered surface bottom border is equipped with the second card portion of putting of mutually supporting fixed connection with the compasses lid, first cambered part is established to the compasses cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021013955.8U CN212499645U (en) | 2020-06-05 | 2020-06-05 | Compasses capable of automatically drawing core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021013955.8U CN212499645U (en) | 2020-06-05 | 2020-06-05 | Compasses capable of automatically drawing core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212499645U true CN212499645U (en) | 2021-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021013955.8U Active CN212499645U (en) | 2020-06-05 | 2020-06-05 | Compasses capable of automatically drawing core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212499645U (en) |
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2020
- 2020-06-05 CN CN202021013955.8U patent/CN212499645U/en active Active
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