CN2104137U - Automatic lead-output compass - Google Patents
Automatic lead-output compass Download PDFInfo
- Publication number
- CN2104137U CN2104137U CN 91211921 CN91211921U CN2104137U CN 2104137 U CN2104137 U CN 2104137U CN 91211921 CN91211921 CN 91211921 CN 91211921 U CN91211921 U CN 91211921U CN 2104137 U CN2104137 U CN 2104137U
- Authority
- CN
- China
- Prior art keywords
- lead
- retractable pencil
- pipe
- dop
- compasses
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model discloses an automatic lead-output compass used for drawing in order to overcome the torn-up trouble of the general compass when compensating use by adjusting a lead cord through hands. The utility model is composed of a protective lead pipe (2), a tip sleeve (3), a damping ring (4), a spring (5), a steel ball (6), a clamping head (7), a lock sleeve (8), and other parts, adopting the automatic sandwich head principle. When use, the adjustment and replenishment of the attrition of the lead cord need not to use the hands. The lead cord can automatically and endlessly exports and the definite length can be kept, and the lead cord is hard to break. The most parts of parts adopt plastics for manufacture, and a great deal of metals can be saved. The utility model has the advantages of simple and compact structure, easy fabrication, and convenient operation.
Description
The utility model relates to the compasses that a kind of designing and mapping is used, and particularly can export the compasses of lead for retractable pencil automatically, belongs to drawing appliance.
Now general used compasses, because the continuous abrasion of lead for retractable pencil, the output length that need often adjust lead for retractable pencil not only bothers with the compensation consume, is difficult to keep the thickness unanimity of lead for retractable pencil again.
In order to overcome above-mentioned shortcoming, the utility model purpose provides a kind of automatic output lead for retractable pencil compasses, as long as go out plumbous mechanism automatically with what lead for retractable pencil inserted compasses, in use the abrasion of lead for retractable pencil will be exported, be compensated rightly to lead for retractable pencil automatically.
The utility model is realized as follows: this automatic output lead for retractable pencil compasses that are used to chart, the top of pilot pin (1) is registration arm (2), cursor (4) is by the adjustment button (5) at top, pin (6) flexibly connects with registration arm (2), turn round the topmost that (7) is positioned at compasses, the lead gripper core mechanism that is installed on cursor (4) bottom is for going out plumbous mechanism (2) automatically, as long as lead for retractable pencil is inserted going out automatically in the plumbous mechanism (2) of compasses, in use, lead for retractable pencil will be exported automatically, compensate the abrasion of lead for retractable pencil rightly, the new lead for retractable pencil of can packing into after lead for retractable pencil uses up.
This concrete structure that goes out plumbous mechanism (2) automatically of exporting the lead for retractable pencil compasses automatically can adopt following scheme, its lead for retractable pencil (8) stretches out the centre bore that protects lead pipe (9), in protecting lead pipe (9) and being, the cylindric part that the external diameter segmentation is different, protecting lead pipe (9) inserts in the little stomidium of point cover (10) diameter, circle is combined together with suitable tightness with the cylindrical of lock sleeve (15) one ends in point cover (10) other end, lead for retractable pencil (8) inserts damped ring (11), damped ring (11) is installed in the endoporus that protects lead pipe (9) upper end, the top of lead for retractable pencil clamps with two half-terete dops (14), the endoporus of lock sleeve (15) one ends contacts cooperation with its tapering with two steel balls (13) on dop (14) outside, at dop (14) with protect and have one can make dop (14) clamp lead for retractable pencil and make to protect the spring (12) that lead pipe (9) resets between the lead pipe (9).
The utility model adopts self-centering chuck principle, the course of work is such: when lead for retractable pencil will decomposite a responsive to axial force in dop (14) under the effect of user's power, because axial force is identical with the direction of the suffered spring of dop (14) (12) elastic force, will strengthen folder lead for retractable pencil power, lead for retractable pencil is loosening never when therefore using.Adopt rolling friction between dop (14) and the lock sleeve (15), the efficient that makes axial force be converted into folder lead for retractable pencil power increases.When lead uses up or fracture, protect lead pipe (9) contact paper and be subjected to the external force effect, overcome in the spring force retraction point cover (10).Because damped ring (11) is identical with the direction of the suffered spring force of dop (14) to damping force drive lead for retractable pencil (8) travel direction of lead for retractable pencil (8), will strengthen the clamping force of dop (14) to lead for retractable pencil (8).At this moment damping force can so lead for retractable pencil (8) does not move along with protecting moving of lead pipe (9), still be in the origin-location less than folder lead for retractable pencil power; When the external pressure of protecting lead pipe (9) is reduced to a certain degree, protecting lead pipe (9) will reset under the effect of spring force, at this moment damping force drive lead for retractable pencil (8) travel direction becomes opposite with the direction of the suffered spring force of dop (14), will reduce the clamping force of dop (14) to lead for retractable pencil (8), damping force is greater than folder lead for retractable pencil power, and lead for retractable pencil (8) will move together along with protecting lead pipe (9).By protecting lead pipe (9) retraction and this motion process that resets, lead for retractable pencil (8) just has been output a segment distance like this.In use, the size of power is in continuous variation, and the variation of this power makes protects that lead pipe (9) constantly repeats retraction and this motion process that resets, thereby constantly export lead for retractable pencil, wearing and tearing with lead for retractable pencil in the compensation use keep certain-length, reach the purpose that can use continuously.
Automatically the exhausted major part of the part of output lead for retractable pencil compasses is to be made by plastic material, has only pilot pin (1) to make with metal.Can select the diameter of different size for use at the lead for retractable pencil that goes out automatically in the plumbous mechanism of the present utility model,, also can select the lead for retractable pencil of different hardness, different colours as required as 0.3 millimeter, 0.5 millimeter, 0.7 millimeter, 0.9 millimeter four kinds of specifications.
The utility model has the advantages that: owing to can export lead for retractable pencil automatically, do not need often to adjust the length of output lead for retractable pencil, thereby easy to use, improved drawing speed.Because exhausted most part is made of plastics, save metal again.
Description of drawings:
Fig. 1 is an overall diagram of exporting the lead for retractable pencil compasses automatically,
Fig. 2 goes out plumbous mechanism structure figure automatically for automatic output lead for retractable pencil compasses,
Wherein, (1) is pilot pin, and (2) are to go out plumbous mechanism automatically, (3) be registration arm, (4) are cursors, and (5) are to adjust button, (6) be pin, (7) are to turn round handle, and (8) are lead for retractable pencils, (9) be to protect lead pipe, (10) are the point covers, and (11) are damped rings, (12) be spring, (13) be steel ball, (14) are dops, and (15) are lock sleeves.
Embodiment: in conjunction with the accompanying drawings 1, accompanying drawing 2 explanations.Be illustrated as the automatic output lead for retractable pencil compasses of 0.5 millimeter of lead core diameter, registration arm (3), cursor (4), adjust button (5), pin (6), turn round, protect lead pipe (9) (7), point cover (10) is engineering plastics ABS injection moulding, damped ring (11) is a rubber, spring (12) is made for stainless steel 1Cr18Ni9Ti material, steel ball (13) is a tungsten carbide material, dop (14) is made with polycarbonate, lock sleeve (15) is made with lucite, and pilot pin (1) is made with steel.
Use when drawing, lead for retractable pencil is paddling on paper, utilizes this power, and the lead pipe (9) that protects that promotes to go out automatically in the plumbous mechanism (2) moves up, and its distance that moves is equivalent to the length of lead for retractable pencil abrasion.When using intermittently, protect lead pipe (9) and under the promotion of spring (12), reset.Be fixed on the damped ring (11) that protects on the lead pipe damping forces simultaneously, open dop (14), extract lead for retractable pencil (8), send and protect lead pipe (9), compensated the abrasion when using, finished the process that goes out lead for retractable pencil automatically with 35 grams.Then spring (12) promotes dop (14) and resets, and makes steel ball (13) on the dop near 7.3 ° of inner conical inclined-planes of lock sleeve (15).Because the effect on inclined-plane makes dop (14) clamp lead for retractable pencil (8), the needs of clamping lead for retractable pencil power 500 grams that compasses need have in use been guaranteed.
Claims (2)
1, a kind of automatic output lead for retractable pencil compasses that are used to chart, the top of pilot pin (1) is registration arm (2), cursor (4) flexibly connects with registration arm (2) by adjustment button (5), the pin (6) at top, turn round the topmost that (7) is positioned at compasses, it is characterized in that being installed on the lead gripper core mechanism of cursor (4) bottom for going out plumbous mechanism automatically.
2, according to the described automatic output lead for retractable pencil compasses of claim 1, the lead for retractable pencil (8) that it is characterized in that going out automatically plumbous mechanism (2) stretches out the centre bore that protects lead pipe (9), in protecting lead pipe (9) and being, the cylindric part that the external diameter segmentation is different, protecting lead pipe (9) inserts in the little stomidium of point cover (10) diameter, circle is combined together with suitable tightness with the cylindrical of lock sleeve (15) one ends in point cover (10) other end, lead for retractable pencil (8) inserts damped ring (11), damped ring (11) is installed in the endoporus that protects lead pipe (9) upper end, the top of lead for retractable pencil clamps with two half-terete dops (14), the endoporus of lock sleeve (15) one ends contacts cooperation with its tapering with two steel balls (13) on dop (14) outside, at dop (14) with protect and have one can make dop (14) clamp lead for retractable pencil and make to protect the spring (12) that lead pipe (9) resets between the lead pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211921 CN2104137U (en) | 1991-06-24 | 1991-06-24 | Automatic lead-output compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91211921 CN2104137U (en) | 1991-06-24 | 1991-06-24 | Automatic lead-output compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2104137U true CN2104137U (en) | 1992-05-13 |
Family
ID=4920517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91211921 Granted CN2104137U (en) | 1991-06-24 | 1991-06-24 | Automatic lead-output compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2104137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791631A (en) * | 2020-07-08 | 2020-10-20 | 罗远菊 | Automatic compensation drawing compasses |
-
1991
- 1991-06-24 CN CN 91211921 patent/CN2104137U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111791631A (en) * | 2020-07-08 | 2020-10-20 | 罗远菊 | Automatic compensation drawing compasses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |