CN2375475Y - Set square with angle indicator - Google Patents
Set square with angle indicator Download PDFInfo
- Publication number
- CN2375475Y CN2375475Y CN 99212593 CN99212593U CN2375475Y CN 2375475 Y CN2375475 Y CN 2375475Y CN 99212593 CN99212593 CN 99212593 CN 99212593 U CN99212593 U CN 99212593U CN 2375475 Y CN2375475 Y CN 2375475Y
- Authority
- CN
- China
- Prior art keywords
- set square
- rotating shaft
- circular groove
- angle
- direction finding
- 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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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a set square with an angle indicator. A gravity meter device or a magnetic meter device for indicating angle is arranged on the surface of the set square. An included angle of any straight line and a horizontal plane or a vertical direction can be accurately measured by using the set square with the angle indicator, and the included angle of any two straight lines arranged in a horizontal plane can also be accurately measured. The straight line of any included angle can be drawn on paper or in a vertical plane by using the set square with the angle indicator, and the utility model brings great convenience for the drawing of people.
Description
The utility model relates to a kind of plotting machine, especially a kind of direction finding set square.
For a long time, people usually use set square, ruler and other plotting machine draw angle, lines or parallel lines etc. in drawing.When needs draw the lines of certain angle, often need the drawing instrument more than two just can finish, bring a lot of inconvenience to picture, especially the angle how exactly the measurement space straight line is become with surface level or vertical direction to is puzzlement people's a difficult problem always.
The purpose of this utility model provides the direction finding set square of a kind of accurately measurement space straight line and surface level or vertical direction angulation.
Another purpose of the utility model provides a kind of direction finding set square that can accurately measure any two included angle of straight line in the surface level.
The technical solution of the utility model is: a kind of direction finding set square, on the plate face, have circular groove, and at the edge of circular groove angle dial is arranged, in circular groove, be equipped with the gravity meter apparatus of indication angle.
Above-mentioned gravity meter apparatus is made of rotating shaft, rotating shaft fixed cover, change, pendulum ring and gravity pin, rotating shaft is positioned in the rotating shaft fixed cover and is fixed on the center of circular groove, and the pendulum ring is installed in the change, and change is enclosed within the rotating shaft, one end of gravity pin links with the pendulum ring, and the other end is equipped with the taper gravity drop hammer.
On circular groove, be equipped with cover plate.
Described rotating shaft fixed cover is combined by cover in plastic wrapper and the copper.
A kind of direction finding set square has circular groove on the plate face, at the edge of circular groove angle dial is arranged, and is equipped with the magnetic force meter apparatus of indication angle in circular groove.
Above-mentioned magnetic force meter apparatus is by rotating shaft, and rotating shaft fixed cover and needle constitute.
On circular groove, be equipped with cover plate.
Described rotating shaft fixed cover is combined by cover in plastic wrapper and the copper.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the utility model front view;
Fig. 2 is the utility model structural representation;
Fig. 3 is gravity table axle and magnetic force table axle construction synoptic diagram;
Fig. 4 is change, balance staff structural representation.
First kind of embodiment of the present utility model, its structure as shown in Figure 1, Figure 2, Figure 3 and Figure 4, on the plate face of the base plate 1 of direction finding set square, have circular groove 19, at the edge of circular trough 19 angle dial 3 is arranged, cover plate 2 is arranged on circular groove 19, be equipped with the gravity meter apparatus of indication angle in circular groove 19, this device is by rotating shaft 11, change 10, pendulum ring 6, gravity pin 8 and be made of the cover 17 rotating shaft fixed covers of forming in plastic wrapper 9 and the copper.Pendulum ring 6 is installed in the change 10, and change 10 is enclosed within the rotating shaft 11, and an end of gravity pin 8 links with pendulum ring 6, and the other end is equipped with taper gravity drop hammer 4.
Operational version of the present utility model and principle:
Can adopt following method when the angle of the arbitrary straight line of measurement space and vertical direction and surface level: hand is taken an end at 60 ° of angles of set square, long right-angle side is overlapped with the survey straight line, an end that makes 30 ° of angles of set square on the upper side, serve as that axle rotates with surveyed straight line and set square right-angle side then, the maximum angular that shows on the gravity table is exactly the angle that the straight line of surveying is become with vertical direction, at this moment, set square is by chance vertical with surface level.And the angle that the straight line of surveying is become with surface level equals 90 ° of angles that deduct it and vertical direction.The principle of this kind angle-measuring method is as follows: taper gravity drop hammer 4 is not subjected to the anchorage force of base plate 1 and cover plate 2 when set square is vertical with surface level, and when set square and surface level out of plumb, base plate 1 or cover plate 2 will produce anchorage force to taper gravity drop hammer 4, gravity that the taper gravity drop hammer is suffered and set square are to the sliding force of making a concerted effort to form of the anchorage force of its generation, sliding force makes taper gravity drop hammer 4 slide to rotating shaft 11 directions, thereby reduced the angle of gravity vertical and rotating shaft 11, that is to say, when using the direction finding set square, only with the long straight flange of set square and the institute's straight line of being surveyed coincidence, and when set square is vertical with surface level, the indicated angle of taper gravity drop hammer is only the angle that the straight line of surveying is become with vertical curve, and by chance be the maximal angle value that shows on the index dial this moment.
The utility model has following use-pattern:
1, whether parallel when needs measurement space one straight line with surface level, as long as according to above-mentioned using method, make taper gravity drop hammer 4 indicated maximum angles be 90 ° and get final product.
2, when need measurement space one straight line whether vertical with surface level, as long as according to above-mentioned using method, make taper gravity drop hammer 4 indicated angles be 0 ° and get final product.
3, measure a plane when need and can measure respectively according to using method then earlier at two intersecting straight lines of the plane inside-paint that will survey when whether parallel, look at whether the indicated maximum angular of taper gravity drop hammer all is 90 ° and gets final product with surface level.
4, on blackboard for education, use the direction finding set square of this structure to map very convenient.
Second kind of embodiment of the utility model, have circular groove 19 on the plate face of its structure such as Fig. 1, Fig. 2 and the base plate 1 at the direction finding set square shown in Figure 3, at the edge of circular groove 19 angle dial 3 is arranged, cover plate 2 is arranged on circular groove 19, in circular groove 19, be equipped with the magnetic force meter apparatus of indication angle, this the device by rotating shaft 11, needle 7 and by in plastic wrapper 9 and the copper cover the 17 rotating shaft fixed covers of forming constitute.
Using method of the present utility model and principle:
The utility model is to utilize the principle design of compass to form.When surveying the position angle of horizontal rays, hand is taken an end at 60 ° of angles of set square, an end that makes 30 ° of angles of set square and ray in the same way, and make the long right-angle side of set square overlap with the survey ray angle that needle then indicates be the straight line of surveying and Due South to angle.
When level is drawn, use the direction finding set square of this kind structure can make things convenient for the angle relation of drawing exactly between line and the line, bring great convenience to the plane mapping.
The utility model can be installed gravity meter apparatus or magnetic force meter apparatus separately on a set square, also gravity meter apparatus and magnetic force meter apparatus can be installed on the set square simultaneously.
Claims (8)
1, a kind of direction finding set square is characterized in that, has circular groove on the plate face, at the edge of circular groove angle dial is arranged, and is equipped with the gravity meter apparatus of indication angle in circular groove.
2, direction finding set square according to claim 1, it is characterized in that, above-mentioned gravity meter apparatus is made of rotating shaft, rotating shaft fixed cover, change, pendulum ring and gravity pin, rotating shaft is positioned in the rotating shaft fixed cover and is fixed on the center of circular groove, the pendulum ring is installed in the change, change is enclosed within the rotating shaft, and an end of gravity pin links with the pendulum ring, and the other end is equipped with the taper gravity drop hammer.
3, direction finding set square according to claim 1 is characterized in that, is equipped with cover plate on circular groove.
4, direction finding set square according to claim 2 is characterized in that, described rotating shaft fixed cover is combined by cover in plastic wrapper and the copper.
5, a kind of direction finding set square is characterized in that, has circular groove on the plate face, at the edge of circular groove angle dial is arranged, and is equipped with the magnetic force meter apparatus of indication angle in circular groove.
6, direction finding set square according to claim 5 is characterized in that, above-mentioned magnetic force meter apparatus is by rotating shaft, and rotating shaft fixed cover and needle constitute.
7, direction finding set square according to claim 5 is characterized in that, is equipped with cover plate on circular groove.
8, direction finding set square according to claim 6 is characterized in that, described rotating shaft fixed cover is combined by cover in plastic wrapper and the copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212593 CN2375475Y (en) | 1999-05-27 | 1999-05-27 | Set square with angle indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99212593 CN2375475Y (en) | 1999-05-27 | 1999-05-27 | Set square with angle indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2375475Y true CN2375475Y (en) | 2000-04-26 |
Family
ID=34005244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99212593 Expired - Fee Related CN2375475Y (en) | 1999-05-27 | 1999-05-27 | Set square with angle indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2375475Y (en) |
-
1999
- 1999-05-27 CN CN 99212593 patent/CN2375475Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |