CN104527273A - Compasses - Google Patents
Compasses Download PDFInfo
- Publication number
- CN104527273A CN104527273A CN201410788551.9A CN201410788551A CN104527273A CN 104527273 A CN104527273 A CN 104527273A CN 201410788551 A CN201410788551 A CN 201410788551A CN 104527273 A CN104527273 A CN 104527273A
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- compasses
- groove
- support
- guide pillar
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a pair of compasses. A guide column is downwards fixed to the middle of the interior of a groove of a compasses handle, a pin shaft used for hinging the guide column and the upper ends of two compasses legs are arranged between the two walls of the groove, a sliding sleeve is disposed on the middle section of the guide column, a locking screw is installed at the position, close to the upper portion, of the side wall of the sliding sleeve, a trimming nut is connected with the lower side of the locking screw on the sliding sleeve in a threaded mode, a support is matched with the lower side of the trimming nut on the sliding sleeve in a sliding mode, and two connection rods are connected between the two sides of the support and the two compasses legs respectively through pin shafts. The compasses have the advantages of being convenient to operate, high in precision, low in cost and long in service life.
Description
Technical field:
The present invention relates to drawing appliance, particularly one can be locked and finely tune, and drawing a picture, round precision is high, the compasses of long service life.
Background technology:
Existing common compasses be all in the opening elongated slot of a handle, be provided with two through horizontal bearing pin can the leg bar of splayed folding, be provided with one in leg masthead portion above handle, stretch into the knob held out against, in the hole clipping of leg bar lower end, install syringe needle for one, another installs drawing lead.This structure existing problems are distances that the frictional force compressed by knob fixes between two legs, and drawing bowlder radius can not finely tune, and does not press tightly, and force also can cause slightly greatly two leg apertures to become large, and affect drafting accuracy, operation easier is large.In order to ensure that two legs synchronously open to both sides, some employing gears meshing modes drive the folding of two legs, not only processing difficulties, and use of a specified duration, also easily loosen, affect precision.
Summary of the invention:
The object of this invention is to provide and a kind ofly draw that round precision is high, adjustment radius is convenient, the compasses of long service life.
Technical scheme of the present invention completes as follows, a kind of compasses, it is characterized in that: in the middle of in the groove of stem, be fixed with a guide pillar downwards, in the middle of groove two wall, be provided with one guide pillar and two rule leg upper ends are carried out hinged bearing pin, a sliding sleeve is installed in guide pillar stage casing, in sliding sleeve sidewall top portion, a lock-screw is installed, sliding sleeve is bolted with below lock-screw a fine-tuning nut, sliding sleeve is equipped with below fine-tuning nut a support, advises support both sides and two between leg and have a connecting rod with pinned connection respectively.
The present invention compared with prior art have easy to operate, precision is high, cost is low, the advantage of long service life.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Detailed description of the invention:
Embodiment is described in detail in conjunction with above accompanying drawing, the present invention is the improvement to existing compasses, main improvement is that centre is fixed with a guide pillar 4 downwards in the groove of stem 1, in the middle of groove two wall, be provided with one guide pillar and two rule leg 2 upper ends are carried out hinged bearing pin 9, a sliding sleeve 8 is installed in guide pillar stage casing, in sliding sleeve sidewall top portion, a lock-screw 7 is installed, sliding sleeve is bolted with below lock-screw a fine-tuning nut 6, sliding sleeve is equipped with below fine-tuning nut a support 5, advise support both sides and two between leg and have a connecting rod 3 with pinned connection respectively.
During use, first break the size that two rule leg coarse adjustment draw radius of circle into two with one's hands, sliding sleeve can slide along with on guide pillar, and then by lock-screw, sliding sleeve is locked on guide pillar, if need accurate adjustment to draw radius of circle, make to slide on connecting rod by rotary fine adjustment nut and slide, control to advise opening or tightening up of leg by left linkages, drive two to advise leg trace adjustment opening width, the precision of picture radius of circle can be ensured.
Claims (1)
1. compasses, it is characterized in that: in the middle of in the groove of stem, be fixed with a guide pillar downwards, in the middle of groove two wall, be provided with one guide pillar and two rule leg upper ends are carried out hinged bearing pin, a sliding sleeve is installed in guide pillar stage casing, in sliding sleeve sidewall top portion, a lock-screw is installed, sliding sleeve is bolted with below lock-screw a fine-tuning nut, sliding sleeve is equipped with below fine-tuning nut a support, advises support both sides and two between leg and have a connecting rod with pinned connection respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788551.9A CN104527273A (en) | 2014-12-19 | 2014-12-19 | Compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788551.9A CN104527273A (en) | 2014-12-19 | 2014-12-19 | Compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104527273A true CN104527273A (en) | 2015-04-22 |
Family
ID=52842993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410788551.9A Pending CN104527273A (en) | 2014-12-19 | 2014-12-19 | Compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527273A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061901U (en) * | 1989-12-27 | 1990-09-12 | 杨琴莲 | No positioning centre compass |
| SU1733270A1 (en) * | 1990-01-09 | 1992-05-15 | Пензенский Политехнический Институт | Measuring compasses |
| SU1757919A1 (en) * | 1990-07-03 | 1992-08-30 | А.В.Мамырин | Divider |
| CN201890039U (en) * | 2010-11-08 | 2011-07-06 | 沈斯琪 | Compasses |
| CN202685681U (en) * | 2012-05-23 | 2013-01-23 | 杨文静 | Compasses with angles capable of being fixed |
| CN102975532A (en) * | 2012-11-26 | 2013-03-20 | 张承运 | Anti-slipping compasses |
| CN204367696U (en) * | 2014-12-19 | 2015-06-03 | 河南机电高等专科学校 | A kind of compasses |
-
2014
- 2014-12-19 CN CN201410788551.9A patent/CN104527273A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2061901U (en) * | 1989-12-27 | 1990-09-12 | 杨琴莲 | No positioning centre compass |
| SU1733270A1 (en) * | 1990-01-09 | 1992-05-15 | Пензенский Политехнический Институт | Measuring compasses |
| SU1757919A1 (en) * | 1990-07-03 | 1992-08-30 | А.В.Мамырин | Divider |
| CN201890039U (en) * | 2010-11-08 | 2011-07-06 | 沈斯琪 | Compasses |
| CN202685681U (en) * | 2012-05-23 | 2013-01-23 | 杨文静 | Compasses with angles capable of being fixed |
| CN102975532A (en) * | 2012-11-26 | 2013-03-20 | 张承运 | Anti-slipping compasses |
| CN204367696U (en) * | 2014-12-19 | 2015-06-03 | 河南机电高等专科学校 | A kind of compasses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |