CN203713339U - Three-edged parallel ruler - Google Patents
Three-edged parallel ruler Download PDFInfo
- Publication number
- CN203713339U CN203713339U CN201420020195.1U CN201420020195U CN203713339U CN 203713339 U CN203713339 U CN 203713339U CN 201420020195 U CN201420020195 U CN 201420020195U CN 203713339 U CN203713339 U CN 203713339U
- Authority
- CN
- China
- Prior art keywords
- idler wheel
- scale
- ruler
- roller
- parallel
- 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
Links
Abstract
A three-edged parallel ruler comprises a three-edged ruler body, a rolling shaft, a left idler wheel and a right idler wheel, wherein a through hole which runs through the center axis of the three-edged ruler body is formed in the three-edged ruler body, the rolling shaft penetrates into the through hole, the left end of the rolling shaft is connected with the left idler wheel, the right end of the rolling shaft is connected with the right idler wheel, a left idler wheel ruler is connected with the inner side of the left idler wheel, and a right idler wheel ruler is connected with the inner side of the right idler wheel. The rolling shaft, the left idler wheel, the right idler wheel, the left idler wheel ruler and the right idler wheel ruler are coaxially fixed into a whole body, and can not relatively rotate. When a drawing person uses the three-edged parallel ruler to draw parallel lines, the drawing person draws the first proportion line firstly, and then rolls the left idler wheel and the right idler wheel, the left idler wheel and the right idler wheel drive the rolling shaft so as to achieve a purpose of horizontally moving the three-edged parallel ruler, and finally the drawing person draws a line parallel and isometric to the first proportion line after the three-edged parallel ruler is moved horizontally. When the three-edged parallel ruler is used, the drawing person can conveniently and rapidly draws the parallel line with a proportion while drawing the proportional line, and furthermore drawing efficiency and drawing accuracy are improved.
Description
Technical field
The utility model relates to the drafting instrument in a kind of civil construction field, especially a kind of Rhizoma Sparganii parallel rule.
Background technology
Parallel lines often need to be drawn in the drawing such as building, building field, and current parallel rule can only be drawn out parallel lines.Though application three-square rule can be drawn out the lines of multiple ratio, can not make the required parallel lines with ratio by rapid drawing.The parallel lines of accurately drawing with ratio need to expend the plenty of time, not only reduce drawing human efficiency, increase workload, also easily occur mistake.
Utility model content
In order to make up the deficiency of parallel rule and three-square rule, facilitate mapper's rapid drawing in the ratio of drafting line to make the parallel lines with ratio, improve drawing efficiency and accuracy, a kind of Rhizoma Sparganii parallel rule is proposed.
The utility model adopts following technical scheme:
A kind of Rhizoma Sparganii parallel rule, comprise prismatic blade, roller bearing, left wheel and right roller, described prismatic blade has the through hole that runs through central shaft, roller bearing penetrates in through hole, roller bearing left end connects left wheel, roller bearing right-hand member connects right roller, and left wheel inner side is connected with the caliper scale that rolls left, and right roller inner side is connected with right roller chi; Described roller bearing, left wheel, right roller, roll left caliper scale and right roller chi are coaxially fixed as one.
Preferably, three corner angle of prismatic blade left end are provided with left scale pointer, and left scale pointer is suspended in the top of the caliper scale that rolls left; Three corner angle of prismatic blade right-hand member are provided with right tuning drive gear, and right tuning drive gear is suspended in the top of right roller chi.
Preferably, prismatic blade has six scale faces, is carving respectively the scale of 1:100,1:200,1:300,1:400,1:500 and 1:250 ratio.
Preferably, roller bearing is made by rigid material.
Preferably, on the wheel face of left wheel and right roller, there is dentation groove.
Preferably, on the caliper scale that rolls left, carve the scale graduation of 1:100, on right roller chi, carving the scale graduation of 1:250.
The beneficial effects of the utility model:
Prismatic blade has the through hole that runs through central shaft, roller bearing penetrates in through hole, roller bearing left end is connected with left wheel, roller bearing right-hand member is connected with right roller, roller bearing, left wheel, right roller, roll left caliper scale and right roller chi are coaxially fixed as one, rolling left wheel or right roller, left and right roller drives roller bearing, realizes the object of translation Rhizoma Sparganii parallel rule.
On the corner angle of three, prismatic blade two ends, be respectively equipped with tuning drive gear, tuning drive gear is suspended in the top of roller chi, according to the indication reading of tuning drive gear, conveniently draws the parallel lines of a determining deviation.
Roller bearing is made by rigid material, and hardness is large, is difficult for occurring deformation.
On the wheel face of left wheel and right roller, there is dentation groove, increase the frictional force of left and right roller.
Rhizoma Sparganii row blade has six scale faces, is carving respectively the scale of 1:100,1:200,1:300,1:400,1:500 and 1:250 ratio.Roll left and carving the scale graduation of 1:100 on caliper scale, on right roller chi, carving the scale graduation of 1:250, the ratio line of 1:100,1:200,1:300,1:400,1:500 can be drawn out with the scale graduation of 1:100, the ratio line of 1:250 and 1:500 can be drawn out with the scale graduation of 1:250.Rhizoma Sparganii parallel lines facilitate mapper's rapid drawing when drawing proportional segment to make the parallel segment with ratio, improve drawing efficiency and accuracy.
Accompanying drawing explanation
Fig. 1 is Rhizoma Sparganii parallel rule front view.
Fig. 2 is Rhizoma Sparganii parallel rule top view.
Fig. 3 is Rhizoma Sparganii parallel rule left view.
Fig. 4 is Fig. 2 partial enlarged drawing.
The specific embodiment
According to Fig. 1 to the 4 pair of specific embodiment of the present utility model, be described further:
A Rhizoma Sparganii parallel rule, comprises prismatic blade 2, roller bearing 1, left wheel 3 and right roller 6, and left and right roller size is identical.Prismatic blade 2 has the through hole that runs through central shaft, and roller bearing 1 penetrates in through hole, and roller bearing left end connects left wheel 3, and roller bearing right-hand member connects right roller 6, and left wheel 3 inner sides are connected with the caliper scale 4 that rolls left, and right roller 6 inner sides are connected with right roller chi 7.Roller bearing 1, left wheel 3, right roller 6, roll left caliper scale 4 and right roller chi 7 are coaxially fixed as one, rolling left wheel or right roller, and left and right roller drives roller bearing, realizes the object of translation Rhizoma Sparganii parallel rule.Three corner angle of prismatic blade 2 left end are provided with left scale pointer 5, and left scale pointer 5 is suspended in the top of the caliper scale 4 that rolls left; Three corner angle of prismatic blade right-hand member are provided with right tuning drive gear 8, and right tuning drive gear 8 is suspended in the top of right roller chi 7.Roller bearing 1 is made by rigid material, and hardness is large, is difficult for occurring deformation.On the wheel limit of left wheel 3 and right roller 4, there is dentation groove, increase the frictional force of left and right roller.
Rhizoma Sparganii row blade 2 has six scale faces, is carving respectively the scale of 1:100,1:200,1:300,1:400,1:500 and 1:250 ratio.On the roller chi of left and right, have scale, the scale of roller chi is corresponding with roller circumference.Roll left and carving the scale graduation of 1:100 on caliper scale 4, on right roller chi 7, carving the scale graduation of 1:250, the ratio line of 1:100,1:200,1:300,1:400,1:500 can be drawn out with the scale graduation of 1:100, the ratio line of 1:250 and 1:500 can be drawn out with the scale graduation of 1:250.Scale on the roller chi of left and right is corresponding with left and right roller circumference.Rhizoma Sparganii parallel lines facilitate mapper's rapid drawing when drawing proportional segment to make the parallel segment with ratio, improve drawing efficiency and accuracy.
When drawing the parallel lines of 1:100, with the scale face of prismatic blade 1:100, draw lower article one ratio line, rotate left wheel 3, left wheel 3 drives right roller 6, roller bearings 1 and roll left caliper scale 4 and right roller chi 7 synchronously rotate, thereby realize the object of translation Rhizoma Sparganii parallel rule, the distance of prismatic blade 2 translations equals the distance that roller turns over.According to the reading of the caliper scale 4 that rolls left, determine the distance of translation, then draw the parallel lines with article one line segment equal proportion.Rhizoma Sparganii parallel rule facilitates mapper's rapid drawing when drawing proportional segment to make the parallel segment with ratio, improves drawing efficiency and accuracy.
Certainly; more than explanation is only preferred embodiment of the present utility model; the utility model is not limited to enumerate above-described embodiment; should be noted that; any those of ordinary skill in the art are under the guidance of this description; that makes is allly equal to alternative, obvious form of distortion, within all dropping on the essential scope of this description, ought to be subject to protection of the present utility model.
Claims (6)
1. a Rhizoma Sparganii parallel rule, comprise prismatic blade, it is characterized in that: also comprise roller bearing, left wheel and right roller, described prismatic blade has the through hole that runs through central shaft, roller bearing penetrates in through hole, and roller bearing left end connects left wheel, and roller bearing right-hand member connects right roller, left wheel inner side is connected with the caliper scale that rolls left, and right roller inner side is connected with right roller chi; Described roller bearing, left wheel, right roller, roll left caliper scale and right roller chi are coaxially fixed as one.
2. a kind of Rhizoma Sparganii parallel rule according to claim 1, is characterized in that: three corner angle of described prismatic blade left end are provided with left scale pointer, and left scale pointer is suspended in the top of the caliper scale that rolls left; Three corner angle of prismatic blade right-hand member are provided with right tuning drive gear, and right tuning drive gear is suspended in the top of right roller chi.
3. a kind of Rhizoma Sparganii parallel rule according to claim 1, is characterized in that: described prismatic blade has six scale faces, is carving respectively the scale of 1:100,1:200,1:300,1:400,1:500 and 1:250 ratio.
4. a kind of Rhizoma Sparganii parallel rule according to claim 1, is characterized in that: described roller bearing is made by rigid material.
5. a kind of Rhizoma Sparganii parallel rule according to claim 1, is characterized in that: on the wheel face of described left wheel and right roller, have dentation groove.
6. a kind of Rhizoma Sparganii parallel rule according to claim 1, is characterized in that: described in roll left and carving the scale graduation of 1:100 on caliper scale, on right roller chi, carving the scale graduation of 1:250.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020195.1U CN203713339U (en) | 2014-01-13 | 2014-01-13 | Three-edged parallel ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420020195.1U CN203713339U (en) | 2014-01-13 | 2014-01-13 | Three-edged parallel ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203713339U true CN203713339U (en) | 2014-07-16 |
Family
ID=51152529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420020195.1U Expired - Fee Related CN203713339U (en) | 2014-01-13 | 2014-01-13 | Three-edged parallel ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203713339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738087A (en) * | 2014-01-13 | 2014-04-23 | 山东科技大学 | Three-edged parallel ruler |
-
2014
- 2014-01-13 CN CN201420020195.1U patent/CN203713339U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103738087A (en) * | 2014-01-13 | 2014-04-23 | 山东科技大学 | Three-edged parallel ruler |
| CN103738087B (en) * | 2014-01-13 | 2015-11-11 | 山东科技大学 | A kind of Rhizoma Sparganii parallel rule |
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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: 20140716 Termination date: 20180113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |