CN2151867Y - Campass with rule - Google Patents
Campass with rule Download PDFInfo
- Publication number
- CN2151867Y CN2151867Y CN 93205679 CN93205679U CN2151867Y CN 2151867 Y CN2151867 Y CN 2151867Y CN 93205679 CN93205679 CN 93205679 CN 93205679 U CN93205679 U CN 93205679U CN 2151867 Y CN2151867 Y CN 2151867Y
- Authority
- CN
- China
- Prior art keywords
- movable pin
- chi
- rule
- utility
- circle
- 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
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- Length-Measuring Instruments Using Mechanical Means (AREA)
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a pair of drawing compasses. In order to overcome the defects that existing ruler compasses are inconvenient to read numbers and the precision of existing ruler compasses is low, the utility model provides a compass with a rule which is composed of a V-shaped compass rack, movable feet, a tape measure, a vernier ruler, etc. The utility model is characterized in that two movable feet are respectively connected with two legs of the V-shaped compass rack; the tape measure is arranged on the movable feet. Hence, the compass with a rule can directly adjust and gain the radius of drawn circle from the compass. The utility model has the advantages that precision is high; the speed of drawing circles is fast; when the utility model is provided with a drawing pen pin or a divider pin, the utility model can be respectively used for fast and accurately tracing drawing or as tools for scribing lines and equally dividing lines.
Description
The utility model relates to a kind of plotter, especially a kind of Campass with rule.
Known common drawing, the line compasses, all there is not scale, draw the bowlder of given radius, need to measure the known radius size and draw circle again by ruler, on No. the 47th, Chinese Patent Gazette for Utility Models the 3rd volume, a kind of scale compasses have been announced, it is on herringbone compass leg bar commonly used, increase the scale of a band scale, therefore can directly read required radius and draw circle making bowlder from scale, but this scale compasses scale does not directly equal the distance between the compasses two leg bars, need by converting, and centering pin and lead for retractable pencil still is skewed on the two leg bars, its spacing is from the influence that is subjected to the lead for retractable pencil degree of wear again, so this scale compasses precision is lower.
The purpose of this utility model is to overcome the existing low defective of scale compasses precision, and a kind of circle, line precision height, Campass with rule easy to use drawn is provided.
The purpose of this utility model is achieved through the following technical solutions:
This Campass with rule is made up of herringbone compasses frame, movable pin, joint bolt, centering pin, movable pin is two, two legs with herringbone compasses frame link respectively, on two movable pin, the circle chi is housed, the head of circle chi is fixed on the movable pin by trip bolt, and the other end passes and is fixed on the vernier scale on another movable pin and twists in the circle chi box, and the circle chi lead mobile in vernier scale, and parallel with paper all the time, circle chi box and vernier scale are fixed on the movable pin by trip bolt.
Be provided with opening at circle chi head, be convenient to adjust zero-bit, on circle chi box, also be provided with the circle chi retaining mechanism that fixedly links with it, this retaining mechanism is made up of compact heap, spring, driving lever handle, the driving lever handle is installed on the circle chi box and can rotates around its fulcrum, compact heap and driving lever handle link and will enclose chi by the spring on the driving lever handle and be pressed on the vernier scale, push down the driving lever handle with finger during use, and compact heap is unclamped.
Campass with rule of the present utility model, because the circle chi is parallel with paper all the time, and be provided with vernier scale, therefore can directly draw the accurate distance between the two movable pin from the compasses, set up out the exact value of given radius, drawn round precision height is changed lead for retractable pencil pin, ruling pen pin or divider pin on the movable pin, can be used for picture circle, tracing or make line, five equilibrium instrument respectively.
Fig. 1 is the Campass with rule structural representation.
Fig. 2 is that the A of Fig. 1 is to view.
Provide specific embodiment of the utility model below in conjunction with accompanying drawing:
As shown in Figure 1, Campass with rule is by herringbone compasses frame (1), joint bolt (2), movable pin (3), (8), trip bolt (4), (9), centering pin compositions such as (5), movable pin (3), (8) link with two legs of herringbone compasses frame (1) respectively by joint bolt (2), at two movable pin (3), circle chi (6) is housed (8), the head of circle chi (6) is fixed on the movable pin (3) by trip bolt (4), the other end passes the vernier scale (7) that is fixed on the movable pin (8) and twists in the circle chi box (10), the circle chi leads in vernier scale and moves, and it is parallel with paper all the time, circle chi box (10) is fixed on the movable pin (8) by trip bolt (9) with vernier scale (7), head at circle chi (6) has an opening, be convenient to adjust zero-bit, on circle chi box (10), be provided with the circle chi retaining mechanism that fixedly links with it, this retaining mechanism is by compact heap (12), driving lever handle (13), and spring (14) is formed, driving lever handle (13) is installed in circle chi box (10) and goes up and can rotate around its fulcrum (11), compact heap (12) and driving lever handle (13) link and the effect by the spring (14) on driving lever handle (13), will enclose chi (6) and be pressed on the vernier scale (7).During use, load onto the lead for retractable pencil pin earlier, to enclose chi (6) by trip bolt (4) and be transferred to zero-bit, depress driving lever handle (13) with finger again and draw back circle chi (6) to required radius size, and unclamp the finger make the circle chi (6) compacted, the circle of known radius accurately that can draw, be used for tracing, line, etc. timesharing, change the ruling pen pin or the divider pin gets final product.The circle chi (6) of this Campass with rule, vernier scale (7) and circle chi box (10) be when not required, can unclamp trip bolt (4), (9) and pull down, and can make common compasses this moment and use.
Claims (3)
1, a kind of Campass with rule, by herringbone compasses frame, movable pin, joint bolt and centering pin are formed, movable pin is installed on the herringbone compasses frame by joint bolt, centering pin is installed on the movable pin, it is characterized in that, this Campass with rule has two movable pin, link with two legs of herringbone compasses frame respectively by joint bolt, on two movable pin, the circle chi is housed, the head of circle chi is fixed on the movable pin by trip bolt, the other end of circle chi passes and is fixed on the vernier scale on another movable pin and twists in the circle chi box, and the circle chi lead in vernier scale and moves, and encloses chi box and vernier scale and is fixed on the movable pin by trip bolt.
2, Campass with rule according to claim 1 is characterized in that the head that encloses chi has an open slot.
3, Campass with rule according to claim 1 and 2, it is characterized in that, one circle chi retaining mechanism is arranged on the circle chi box of this Campass with rule, retaining mechanism is made up of compact heap, driving lever handle and spring, the driving lever handle is installed on the circle chi box and can rotates around its fixed pivot, and compact heap and driving lever handle link and enclosing on the chi by the spring compression on the driving lever handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205679 CN2151867Y (en) | 1993-03-12 | 1993-03-12 | Campass with rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93205679 CN2151867Y (en) | 1993-03-12 | 1993-03-12 | Campass with rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2151867Y true CN2151867Y (en) | 1994-01-05 |
Family
ID=33788887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93205679 Expired - Fee Related CN2151867Y (en) | 1993-03-12 | 1993-03-12 | Campass with rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2151867Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114013A (en) * | 2016-08-31 | 2016-11-16 | 甄泓忠 | The Geometric figure drawing compasses that a kind of students in mathematics teaching is special |
-
1993
- 1993-03-12 CN CN 93205679 patent/CN2151867Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106114013A (en) * | 2016-08-31 | 2016-11-16 | 甄泓忠 | The Geometric figure drawing compasses that a kind of students in mathematics teaching is special |
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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 |