CN203358139U - Vernier type arc surveying and mapping tool - Google Patents
Vernier type arc surveying and mapping tool Download PDFInfo
- Publication number
- CN203358139U CN203358139U CN 201320437316 CN201320437316U CN203358139U CN 203358139 U CN203358139 U CN 203358139U CN 201320437316 CN201320437316 CN 201320437316 CN 201320437316 U CN201320437316 U CN 201320437316U CN 203358139 U CN203358139 U CN 203358139U
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- CN
- China
- Prior art keywords
- surveying
- mapping tool
- base bar
- long slot
- slot bore
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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.)
- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A vernier type arc surveying and mapping tool comprises a base rod which is provided with a long-groove hole, one end of the base rod is provided with a pen inserting seat, scales are arranged on one side of the long-groove hole of the base rod, and a locating nail is movably arranged in the long-groove hole. The vernier type arc surveying and mapping tool is used in cooperation with various writing pens, the unsafety problem of pencil lead sharpening by a knife is solved, the scales are arranged on the base rod, the radius of a circle can be directly set, the size of an arc can be measured at the same time, and operation is convenient and practical.
Description
Technical field
The utility model relates to a kind of stationery, especially relates to a kind of cursor type circular arc surveying and mapping tool.
Background technology
Present compasses are all " people " fonts, and the lead gripper pen core carries out the picture circle, but the core that will sharpen the point of a pencil comparatively bothers, and drawing radius of a circle will record from ruler, very inconvenient.
Summary of the invention
The purpose of this utility model is for existing deficiency, provides a kind of simple in structure, easy to operate, not only can draw circle but also can measure a kind of cursor type circular arc surveying and mapping tool of arc size.
The utility model will solve the technical scheme that its technical problem adopts: a kind of cursor type circular arc surveying and mapping tool, its base bar is provided with a long slot bore, one end of base bar is provided with Stand for inserting pen, and a side of base bar long slot bore is provided with graduation mark, and locating pin is arranged in long slot bore movably.
Described Stand for inserting pen is skewed, and the Stand for inserting pen endoporus is provided with elastic clip.
The axonometer of described locating pin connects mobile square successively, with the turning handle on metering piece, lock nut and the top of pointer, mobile square is positioned at the below of base bar long slot bore, the metering piece is positioned at the top of base bar long slot bore, pointer is aimed at graduation mark, the metering piece is pressed on the lock nut top, and locating pin is fixed.
The utility model and various lettering pen support the use, and have solved by the cutter unsafe problem of core that sharpens a pencil, and on the base bar, are provided with graduation mark, can directly be set the picture radius of a circle, can measure the size of circular arc again, easy to operate practicality simultaneously.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model locating pin.
Below in conjunction with drawings and the embodiments, the utility model is further described.
The specific embodiment
As shown in Figure 1, 2, a kind of cursor type circular arc surveying and mapping tool, its base bar 1 is provided with a long slot bore 11, and an end of base bar 1 is provided with Stand for inserting pen 12, and Stand for inserting pen 12 is skewed, and Stand for inserting pen 12 endoporus are provided with elastic clip 121, the fixing penholder inserted of elastic clip.One side of base bar long slot bore 11 is provided with graduation mark 13, and locating pin 2 is arranged in long slot bore 11 movably.The axonometer 21 of locating pin 2 connects the turning handle 25 on mobile square 22, the metering piece 23 with pointer, lock nut 24 and top successively, mobile square 22 is positioned at the below of base bar long slot bore 11, metering piece 23 is positioned at the top of base bar long slot bore 11, pointer 231 is aimed at graduation mark 13, metering piece 23 is pressed on lock nut 24 tops, and locating pin 2 is locked.
During operation, lettering pen inserts in Stand for inserting pen 12, and running fix nail 2, arrange radius value and home position, and lock nut 24 tops press metering piece 23 that locating pin 2 is fixed, and pin locating pin 2, rotate lettering pen and get final product.While measuring diameter of a circle, nib is positioned on circular arc line, and running fix nail 2 makes the axonometer 21 of locating pin 2 tangent with circular arc line, obtains diameter of a circle numerical value.
Claims (3)
1. a cursor type circular arc surveying and mapping tool, it is characterized in that: its base bar (1) is provided with a long slot bore (11), one end of base bar is provided with Stand for inserting pen (12), one side of base bar long slot bore (11) is provided with graduation mark (13), and locating pin (2) is arranged in long slot bore (11) movably.
2. a kind of cursor type circular arc surveying and mapping tool according to claim 1 is characterized in that: described Stand for inserting pen (12) is for skewed, and the Stand for inserting pen endoporus is provided with elastic clip (121).
3. a kind of cursor type circular arc surveying and mapping tool according to claim 1, it is characterized in that: the axonometer (21) of described locating pin (2) connects the turning handle (25) on mobile square (22), the metering piece (23) with pointer, lock nut (24) and top successively, mobile square (22) is positioned at the below of base bar long slot bore (11), metering piece (23) is positioned at the top of base bar long slot bore (11), pointer (231) is aimed at graduation mark (13), metering piece (23) is pressed on lock nut (24) top, and locating pin (2) is fixed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320437316 CN203358139U (en) | 2013-07-15 | 2013-07-15 | Vernier type arc surveying and mapping tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 201320437316 CN203358139U (en) | 2013-07-15 | 2013-07-15 | Vernier type arc surveying and mapping tool |
Publications (1)
Publication Number | Publication Date |
---|---|
CN203358139U true CN203358139U (en) | 2013-12-25 |
Family
ID=49805954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 201320437316 Expired - Fee Related CN203358139U (en) | 2013-07-15 | 2013-07-15 | Vernier type arc surveying and mapping tool |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN203358139U (en) |
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2013
- 2013-07-15 CN CN 201320437316 patent/CN203358139U/en not_active Expired - Fee Related
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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: 20131225 Termination date: 20140715 |
|
EXPY | Termination of patent right or utility model |