CN105252937A - Improved accurate measurement compass - Google Patents
Improved accurate measurement compass Download PDFInfo
- Publication number
- CN105252937A CN105252937A CN201510844360.4A CN201510844360A CN105252937A CN 105252937 A CN105252937 A CN 105252937A CN 201510844360 A CN201510844360 A CN 201510844360A CN 105252937 A CN105252937 A CN 105252937A
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- CN
- China
- Prior art keywords
- main scale
- compasses
- propelling pencil
- tab assembly
- improved precision
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- 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.)
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Abstract
The invention discloses an improved accurate measurement compass. The improved accurate measurement compass comprises a main scale with scales, a fixing rod connected with the main scale and a propelling pencil, wherein the fixing rod and the propelling pencil are arranged on the same side and are both perpendicularly connected with the main scale. The improved accurate measurement compass further comprises a control mechanism used for adjusting the propelling pencil to move back and forth in the length direction of the main scale. Circles with specific scales can be accurately drawn through the compass, and compared with an existing ordinary compass, errors are reduced. Meanwhile, through cooperative use of the fixing rod and a positioning rod of the compass, the scale of an object needing measuring can be read out easily, and the improved accurate measurement compass can be used as a measurement tool.
Description
Technical field
The invention belongs to learning tool technical field, be specifically related to a kind of improved precision locating tab assembly compasses.
Background technology
Common compasses and be break into two with one's hands with two hands to operate, do the error caused larger comparatively speaking like this.Present Domestic also has similar works, and it is mainly applied to the compass teaching aid at blackboard upper drawing circle, and does not have scale more accurately.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the invention provides a kind of improved precision locating tab assembly compasses, object to realize the picture that compasses have accurate calibration.
To achieve these goals, the technical scheme that the present invention takes is:
A kind of improved precision locating tab assembly compasses, comprise band graduated main scale, the fixed bar be connected with main scale and propelling pencil, described fixed bar arranges with propelling pencil homonymy and all vertically with main scale to be connected, and described compasses also comprise the controlling organization for regulating propelling pencil to move back and forth at main scale length direction.
Preferably, described controlling organization comprises fine rule, the backstay that can slide along main scale and two gears be connected by rotating shaft with main scale two ends respectively, rotating shaft is connected by fine rule with backstay, described propelling pencil is connected with main scale by backstay, and described pinion rotation drives backstay to move back and forth by fine rule.
Preferably, described main scale inside is provided with the cavity holding fine rule.
Preferably, the free end of described fixed bar is provided with draw point, and the axis direction of draw point and the zero graduation line of main scale are on same straight line.
Preferably, the free end of described fixed bar is also provided with the bullet contracting unit regulating draw point flexible.
Preferably, described bullet contracting unit comprise the first spring, be nested in the first spring rush axle, control rush axle punching press draw point the first button, for nested draw point the second spring and control draw point retract the second button.
Preferably, described compasses also comprise the fixed block arranged with fixed bar concentric shafts, and fixed block and fixed bar lay respectively at the both sides of main scale.
Preferably, described compasses also comprise locating ring, and described propelling pencil is connected with main scale by locating ring.
Preferably, described compasses also comprise fluted body slide block, and described propelling pencil is connected with main scale by Baltimore groove slide block, and the length direction of described backstay and the Baltimore groove slide block central axis direction partly that caves inward is on same straight line.
Beneficial effect of the present invention: compasses of the present invention realize can drawing accurately for the circle of concrete scale size, and relatively existing common compasses, decrease error; And by the fixed bar of compasses and backstay with the use of, easily can read the required scale measuring object, can use as a kind of survey tool.
Accompanying drawing explanation
This description comprises the following drawings, shown content respectively:
Fig. 1 is the structural representation of improved precision locating tab assembly compasses of the present invention.
Be labeled as in figure:
1, main scale, 2, fixed bar, 3, propelling pencil, 4, backstay, 5, gear, 6, fine rule, 7, draw point, 8, fixed block, 9, locating ring, 10, Baltimore groove slide block.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, be described in further detail the specific embodiment of the present invention, object helps those skilled in the art to have more complete, accurate and deep understanding to design of the present invention, technical scheme, and contribute to its enforcement.
As shown in Figure 1, the present invention relates to a kind of improved precision locating tab assembly compasses, comprise band graduated main scale 1, the fixed bar 2 be connected with main scale and propelling pencil 3, fixed bar 2 arranges with propelling pencil 3 homonymy and is all connected with main scale 1 is vertical, and compasses also comprise the controlling organization for regulating propelling pencil 3 to move back and forth at main scale 1 length direction.
Above-mentioned controlling organization comprises fine rule 6, the backstay 4 that can slide along main scale and two gears 5 be connected by rotating shaft with main scale 1 two ends respectively, rotating shaft is connected by fine rule with backstay, propelling pencil 3 is connected with main scale by backstay 4, and gear 5 rotates through fine rule 6 and drives backstay 4 to move back and forth.Two rotating shafts preferably being arranged respectively one for furling the small cylinder of fine rule, avoiding fine rule to be directly wrapped in words too much in rotating shaft and causing gear not easily to rotate.
Cause fine rule to hook into other article in order to avoid fine rule is located at outside, main scale inside is preferably provided with the cavity holding fine rule, and fine rule can move back and forth in the accommodation cavity of main scale inside.
In order to strengthen the fixation of fixed bar further, the free end of fixed bar is provided with draw point 7, and the axis direction of draw point 7 and the zero graduation line of main scale are on same straight line.
In order to avoid compasses of the present invention are not when using, draw point exposes the situation of easily stabbing people and occurs, and the free end of fixed bar is also provided with the bullet contracting unit regulating draw point flexible.Preferably, bullet contracting unit comprise the first spring, be nested in the first spring rush axle, control rush axle punching press draw point the first button, for nested draw point the second spring and control draw point retract the second button.
In order to can better round dot be fixed the time marquis drawing circle better, not easily change, compasses preferably also comprise the fixed block 8 arranged with fixed bar 2 concentric shafts, and fixed block 8 and fixed bar 2 lay respectively at the both sides of main scale 1.
In order to further strengthen the fixed performance at compasses propelling pencil place and the scope that calibrates preferably, compasses also comprise locating ring 9, and propelling pencil is connected with main scale 1 by locating ring 9.
In order to further strengthen the fixed performance of propelling pencil and main scale, compasses also comprise fluted body slide block 10, propelling pencil 3 is connected with main scale 1 by Baltimore groove slide block 10, the length direction of backstay 4 and Baltimore groove slide block 10 cave inward part central axis direction be on same straight line.
Below by reference to the accompanying drawings to invention has been exemplary description.Obviously, specific implementation of the present invention is not subject to the restrictions described above.As long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; Or without improvement, above-mentioned design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention.
Claims (9)
1. improved precision locating tab assembly compasses, comprise the graduated main scale of band (1), the fixed bar (2) be connected with main scale (1) and propelling pencil (3), it is characterized in that: described fixed bar (2) arranges with propelling pencil (3) homonymy and is all connected with main scale (1) is vertical, and described compasses also comprise the controlling organization for regulating propelling pencil to move back and forth at main scale (1) length direction.
2. improved precision locating tab assembly compasses according to claim 1, it is characterized in that: described controlling organization comprises fine rule (6), the backstay (4) that can slide along main scale and two gears (5) be connected by rotating shaft with main scale two ends respectively, rotating shaft is connected by fine rule (6) with backstay (4), described propelling pencil (3) is connected with main scale (1) by backstay (4), and described gear (5) rotates through fine rule and drives backstay to move back and forth.
3. improved precision locating tab assembly compasses according to claim 2, is characterized in that: described main scale inside is provided with the cavity holding fine rule.
4. improved precision locating tab assembly compasses according to claim 1, it is characterized in that: the free end of described fixed bar (2) is provided with draw point (7), the axis direction of draw point (7) and the zero graduation line of main scale (1) are on same straight line.
5. improved precision locating tab assembly compasses according to claim 4, is characterized in that: the free end of described fixed bar (2) is also provided with the bullet contracting unit regulating draw point flexible.
6. improved precision locating tab assembly compasses according to claim 5, is characterized in that: described bullet contracting unit comprises the first spring, the first button rushing axle, control to rush axle punching press draw point be nested in the first spring, for nested draw point the second spring and control the second button that draw point retracts.
7. improved precision locating tab assembly compasses according to claim 1, it is characterized in that: described compasses also comprise the fixed block (8) arranged with fixed bar concentric shafts, fixed block (8) and fixed bar (2) lay respectively at the both sides of main scale.
8. improved precision locating tab assembly compasses according to claim 1, is characterized in that: described compasses also comprise locating ring (9), and described propelling pencil is connected with main scale (1) by locating ring (9).
9. improved precision locating tab assembly compasses according to claim 1, it is characterized in that: described compasses also comprise fluted body slide block (10), described propelling pencil is connected with main scale by Baltimore groove slide block (10), and the length direction of described backstay (4) and the Baltimore groove slide block central axis direction partly that caves inward is on same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844360.4A CN105252937B (en) | 2015-11-25 | 2015-11-25 | A kind of improved precision locating tab assembly compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510844360.4A CN105252937B (en) | 2015-11-25 | 2015-11-25 | A kind of improved precision locating tab assembly compasses |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105252937A true CN105252937A (en) | 2016-01-20 |
| CN105252937B CN105252937B (en) | 2017-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510844360.4A Active CN105252937B (en) | 2015-11-25 | 2015-11-25 | A kind of improved precision locating tab assembly compasses |
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| Country | Link |
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| CN (1) | CN105252937B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310307A (en) * | 2017-07-20 | 2017-11-03 | 合肥顺顺信息咨询有限公司 | A kind of compasses for precisely drawing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7080459B1 (en) * | 2005-03-14 | 2006-07-25 | Khan Ashfaq A | Thread ruler and a multi-function drafting instrument |
| CN202006676U (en) * | 2010-08-04 | 2011-10-12 | 陈沈洋 | Vernier sucker teaching compasses |
| CN202862934U (en) * | 2012-08-28 | 2013-04-10 | 陈掬琦 | Novel compasses |
| CN202911389U (en) * | 2012-10-17 | 2013-05-01 | 徐国仁 | Compasses |
| CN203818850U (en) * | 2014-05-08 | 2014-09-10 | 桑志英 | Compasses with exact scales for teaching |
| CN104309370A (en) * | 2014-11-05 | 2015-01-28 | 黄赞谟 | Fixed shaft compass |
-
2015
- 2015-11-25 CN CN201510844360.4A patent/CN105252937B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7080459B1 (en) * | 2005-03-14 | 2006-07-25 | Khan Ashfaq A | Thread ruler and a multi-function drafting instrument |
| CN202006676U (en) * | 2010-08-04 | 2011-10-12 | 陈沈洋 | Vernier sucker teaching compasses |
| CN202862934U (en) * | 2012-08-28 | 2013-04-10 | 陈掬琦 | Novel compasses |
| CN202911389U (en) * | 2012-10-17 | 2013-05-01 | 徐国仁 | Compasses |
| CN203818850U (en) * | 2014-05-08 | 2014-09-10 | 桑志英 | Compasses with exact scales for teaching |
| CN104309370A (en) * | 2014-11-05 | 2015-01-28 | 黄赞谟 | Fixed shaft compass |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310307A (en) * | 2017-07-20 | 2017-11-03 | 合肥顺顺信息咨询有限公司 | A kind of compasses for precisely drawing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105252937B (en) | 2017-01-04 |
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