CN202319572U - Compasses without needle - Google Patents
Compasses without needle Download PDFInfo
- Publication number
- CN202319572U CN202319572U CN2011204768553U CN201120476855U CN202319572U CN 202319572 U CN202319572 U CN 202319572U CN 2011204768553 U CN2011204768553 U CN 2011204768553U CN 201120476855 U CN201120476855 U CN 201120476855U CN 202319572 U CN202319572 U CN 202319572U
- Authority
- CN
- China
- Prior art keywords
- compasses
- needleless
- supporting rod
- needle
- ball
- 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.)
- Expired - Fee Related
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- Surgical Instruments (AREA)
Abstract
Compasses without a needle comprise a main supporting rod, an auxiliary supporting rod and an anti-slip handle. A driving gear on the upper portion of the main supporting rod and a driven gear on the auxiliary supporting rod are clamped together and hinged through a screw. A connecting gasket is arranged in the driving gear and the driven gear, the anti-slip handle is arranged on the connecting gasket, a ball is arranged at the bottom of the main supporting rod and arranged in a needle-free base, a rubber gasket is attached to the bottom of the needle-free base, and a locating hole is arranged at the center of the rubber gasket. The compasses without the needle overcome the shortcomings that the existing compasses can break paper through stabbing easily, is easy to slip, and can scratch hands easily. The ball at the bottom of the main supporting rod is connected with the needle-free base so that construction is smooth. By means of the design of a brush fixing device, richness of drawing is improved, and the compasses can be widely applied to various drawing operation.
Description
Technical field
The utility model relates to a kind of instrument that is used to draw mapping, is meant a kind of compasses that need not pilot pin specifically.
Background technology
Along with the fast development in China compasses market, relevant with it core production technology is used with research and development will become the focus of enterprises pay attention in the industry.At present both at home and abroad the kind for the research of compasses has common compasses, bow-spring compasses, drop bow, trammel etc.Common compasses all are that the pin compasses are arranged, and pin is to be the convenient fixedly center of circle.Bow-spring compasses makes that use is very accurate; Drop bow is the roundlet that is used to draw 1 millimeter; Trammel then is the circle that is decorated with concrete yardstick.
The utility model content
The purpose of the utility model is defective and the deficiency to above-mentioned prior art, for people provide a kind of safety, and novel easily drawing tool.
For realizing that the technical scheme that above-mentioned purpose the utility model is taked is: these needleless compasses comprise main strut, secondary pole and anti-skidding shaking hands; The driving gear of main strut top and the driven gear on the secondary pole fasten each other; And hinged through screw, in driving gear and driven gear, be provided with and be connected pad, described anti-skidding shaking hands is installed on the connection pad; The bottom of described main strut is provided with ball; This ball places in the needleless base, is attached with rubber sheet gasket in the bottom of needleless base, and the center of this rubber sheet gasket offers locating hole.
Said anti-skidding shaking hands is positioned on the connection pad center line, and main strut and secondary pole are symmetrical in the center line both sides.
Welded the paintbrush fixator on the described secondary pole, described trip bolt is radially through the sidewall of paintbrush fixator.
The utility model solves traditional compasses and is prone to puncture paper, the easy shortcoming of sliding, being prone to the sliding injury hand; The ball of main strut bottom is connected with the needleless base, and mapping is smooth, the design of paintbrush fixator; Increased the rich of mapping, can be widely used in all kinds of drawing operations.
Description of drawings
Fig. 1 is the utility model STRUCTURE DECOMPOSITION sketch map.
Fig. 2 is the utility model structure cross-sectional schematic.
The specific embodiment
As shown in Figure 1, shown in Figure 2, the utility model is a kind of needleless compasses, and it comprises main strut 4, secondary pole 5 and anti-skiddingly shake hands 1 that the driving gear 4.2 of main strut 4 tops fastens with the driven gear 5.1 on the secondary pole 5 each other, and it is hinged to pass through screw 3.In driving gear 4.2 and driven gear 5.1, be provided with and be connected pad 2, described anti-skidding shaking hands 1 is installed on the top that connects pad 2, anti-skiddingly shakes hands 1 and connect can be fixing through being threaded between the pad 2.Said anti-skidding shaking hands 1 is positioned at and connects on pad 2 center lines, and main strut 4 is symmetrical in the center line both sides with secondary pole 5.
The bottom of described main strut 4 is provided with ball 4.1, and this ball 4.1 places in the needleless base 8, and ball 4.1 can be rotated in needleless base 8 flexibly.Be attached with rubber sheet gasket 9 in the bottom of needleless base 8, the center of this rubber sheet gasket 9 offers locating hole 9.1.Make bowlder, locating hole 9.1 aim at the center of circle, location of the circle that will do, adjust major and minor pole 4, the distance between 5, rotate and anti-skiddingly shake hands 1, can make the circle that will do.Welded paintbrush fixator 6 on the described secondary pole 5, this paintbrush fixator 6 welds with the bottom of secondary pole 5.Described trip bolt 7 radially through the sidewall of paintbrush fixator 6, can firmly be fixed on paintbrush in the paintbrush fixator 6 through this firm screw 7.
When compasses are installed, at first loosening hold-down screw 7, the paintbrush insertion paintbrush fixator 6 with mapping usefulness lets nib touch and makes plan, and the screw 7 that is tightened has then promptly been accomplished the installation of needleless compasses.
In use, aim at the center of circle, location of the circle that institute will do to locating hole 9.1, adjust main strut 4, secondary pole 5, reach suitable distance, rotate and anti-skiddingly shake hands 1, can make the circle that will do.After mapping finished, loosening hold-down screw 7 took out the paintbrush that places in the paintbrush fixator 6, and the screw 7 that suitably is tightened drops preventing.And put into needleless compasses receiver, for mapping next time is got ready.
The utility model solves traditional compasses and is prone to puncture paper, the easy shortcoming of sliding, being prone to the sliding injury hand; The ball 4.1 of main strut 4 bottoms is connected with needleless base 8, and mapping is smooth, the design of paintbrush fixator 6; Increased the rich of mapping, can be widely used in all kinds of drawing operations.
Claims (3)
1. needleless compasses; It comprises main strut (4), secondary pole (5) and anti-skidding shaking hands (1); The driving gear (4.2) of main strut (4) top fastens with the driven gear (5.1) on the secondary pole (5) is mutual; And hinged through screw (3), in driving gear (4.2) and driven gear (5.1), be provided with and be connected pad (2), described anti-skidding shaking hands (1) is installed on the top of connection pad (2); The bottom that it is characterized in that described main strut (4) is provided with ball (4.1); This ball (4.1) places in the needleless base (8), is attached with rubber sheet gasket (9) in the bottom of needleless base (8), and the center of this rubber sheet gasket (9) offers locating hole (9.1).
2. needleless compasses according to claim 1 is characterized in that said anti-skidding shaking hands (1) is positioned on connection pad (2) center line, and main strut (4) is symmetrical in the center line both sides with secondary pole (5).
3. needleless compasses according to claim 1 and 2 is characterized in that having welded on the described secondary pole (5) paintbrush fixator (6), and described trip bolt (7) is radially through the sidewall of paintbrush fixator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204768553U CN202319572U (en) | 2011-11-25 | 2011-11-25 | Compasses without needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204768553U CN202319572U (en) | 2011-11-25 | 2011-11-25 | Compasses without needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202319572U true CN202319572U (en) | 2012-07-11 |
Family
ID=46431564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204768553U Expired - Fee Related CN202319572U (en) | 2011-11-25 | 2011-11-25 | Compasses without needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202319572U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985578A (en) * | 2017-04-02 | 2017-07-28 | 冯文达 | Compasses point |
| CN110576696A (en) * | 2018-06-08 | 2019-12-17 | 苏州工艺美术职业技术学院 | Compasses capable of measuring distance |
-
2011
- 2011-11-25 CN CN2011204768553U patent/CN202319572U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985578A (en) * | 2017-04-02 | 2017-07-28 | 冯文达 | Compasses point |
| CN110576696A (en) * | 2018-06-08 | 2019-12-17 | 苏州工艺美术职业技术学院 | Compasses capable of measuring distance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141125 |
|
| EXPY | Termination of patent right or utility model |