CN209395474U - A kind of compasses for drawing any central angle circular arc - Google Patents
A kind of compasses for drawing any central angle circular arc Download PDFInfo
- Publication number
- CN209395474U CN209395474U CN201820305552.7U CN201820305552U CN209395474U CN 209395474 U CN209395474 U CN 209395474U CN 201820305552 U CN201820305552 U CN 201820305552U CN 209395474 U CN209395474 U CN 209395474U
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- China
- Prior art keywords
- compass foot
- circular arc
- ball
- compasses
- central angle
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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.)
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Abstract
The utility model discloses the compasses that one kind can draw any central angle circular arc, it includes the first compass foot and the second compass foot, first compass foot is flexibly connected with the second compass foot, rotation ball is provided on first compass foot, the ball set with its clearance fit is arranged on rotation ball, ball, which is put on, is provided with sucker on the support rod being connected with；It is provided with graduation mark on the end face of ball set, connecting rod is connect with the annular sleeve being set on support rod；It is provided with sliding block on first compass foot, telescopic rod is connected between sliding block and measuring rule；Paintbrush is fixedly installed on second compass foot.The utility model is designed reasonably, structure is simple, and picture person is while realizing picture circular arc, the central angle of drawn circular arc can be measured by graduated scale, and then can realize the circular arc of any central angle of picture, the work difficulty for the person that effectively reduces picture and the time of drawing is reduced, increases the accuracy of picture circular arc.
Description
Technical field
The utility model relates to stationery fields, and in particular to one kind can draw the compasses of any central angle circular arc.
Background technique
Compasses are the tools for drawing round and circular arc, are one of indispensable tools during we handle official business, learn.It is existing
One, compasses of technology is needle point, and other end is pen core, and needle point can usually prick hand during taking, and has certain danger
Property.In use, can also puncture paper due to the needle points center of circle such as modifying, repeating, writing and beautiful is influenced.In painting process,
We often may require that the circular arc of picture difference radian, at this moment just needs to measure using other measuring tools, can thus add
Our working strength greatly also results in the generation of error.
Utility model content
For the above-mentioned deficiency of the prior art, the utility model provides a kind of compasses that can draw any central angle circular arc.
To achieve the above object of the invention, the technical solution adopted in the utility model are as follows:
There is provided a kind of compasses that can draw any central angle circular arc comprising the first compass foot and the second compass foot, the first circle
Regulation foot is flexibly connected with the second compass foot, and rotation ball is provided on the first compass foot, is rotated and is arranged with and its gap on ball
The ball set of cooperation, ball, which is put on, is connected with support rod, is provided with sucker on support rod；Scale is provided on the end face of ball set
Line is provided with measuring rule on graduation mark, and the connecting rod of arc, connecting rod and the ring being set on support rod are provided on measuring rule
Shape set connection, annular sleeve are flexibly connected with support rod；It is provided with sliding block on first compass foot, is provided with I-shaped on sliding block
Boss, boss are plugged in the sliding slot of the I-shaped opened up on the first compass foot, are connected between sliding block and measuring rule
Telescopic rod；Paintbrush is fixedly installed on second compass foot.
Further, it extends on the support rod in sucker and is provided with laser pen, be provided with and swash on the outer wall of support rod
The switch of light pen connection.
Further, the junction of the first compass foot and the second compass foot is provided with compasses head, is provided on compasses head anti-
Skating handle.
The utility model has the following beneficial effects: the utility model is a kind of compasses that can draw any central angle circular arc, support
It is fixed on the circular arc center of circle on bar by the way that sucker is arranged；During drawing circular arc, the second compass foot for being provided with paintbrush is being drawn
Graph region is mobile, to drive the rotation in ball covers of rotation ball, realizes the purpose of picture circular arc, is provided with laser in sucker
Pen, can effectively help sucker center to be positioned with the circular arc center of circle, reduce error.
The graduation mark being arranged on the end face of ball set is measured by measuring rule, and measuring rule passes through telescopic rod and is set to
On first compass foot sliding block connection, adjust compasses bipod between length when, sliding block can be in the cunning on the first compass foot
It is moved in slot, to keep telescopic rod flexible, prevents damage measuring rule；During drawing circular arc, telescopic rod drives measuring rule along quarter
It is mobile to spend line, to achieve the purpose that measure central angle.
The utility model is designed reasonably, structure is simple, and picture person realizes picture circular arc by rotating handle, in drawing area
Purpose, while the central angle of drawn circular arc can be measured by graduated scale, and then can realize the circular arc of any central angle of picture, effectively
The work difficulty for the person that reduces picture and the time of drawing is reduced, increases the accuracy of picture circular arc.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the compasses that one kind can draw any central angle circular arc.
Fig. 2 is the connection schematic diagram of sliding block and the first compass foot.
Fig. 3 is the top view of ball set.
Wherein, the 1, first compass foot, the 2, second compass foot, 3, ball set, 4, rotation ball, 5, annular sleeve, 6, connecting rod,
7, measuring rule, 8, sucker, 9, laser pen, 10, switch, 11, telescopic rod, 12, support rod, 13, paintbrush, 14, compasses head, 15, hand
Handle, 16, sliding block, 17, boss, 18, sliding slot.
Specific embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all utilize the innovation and creation of the utility model design in the column of protection.
As shown in Figure 1, a kind of compasses that can draw any central angle circular arc include the first compass foot 1 and the second compass foot 2, the
One compass foot 1 is connect with the second compass foot 2 by hinges, is arranged in the junction of the first compass foot 1 and the second compass foot 2
There is compasses head 14, handle 15 is provided on compasses head 14；It is provided with rotation ball 4 on first compass foot 1, rotates and is covered on ball 4
Equipped with covering 3 with the ball of its clearance fit, it is connected with support rod 12 on ball set 3, is provided with sucker on the end of support rod 12
8；Paintbrush 13 is provided on second compasses angle.
As shown in figure 3, the graduation mark of measurement angle is provided on ball set 3, it is right by setting measuring rule 7 on graduation mark
Graduation mark is measured, and arc-shaped connecting rod 6 is provided on measuring rule 7, and connecting rod 6 is close to the external arc of ball set 3
Face, connecting rod 6 are connect with the annular sleeve 5 being set on support rod 12, and annular sleeve 5 is flexibly connected with support rod 12.
As shown in Fig. 2, be also connected with telescopic rod 11 by hinges on measuring rule 7, the other end of telescopic rod 11 with
The sliding block 16 being set on the first compass foot 1 is connected by hinges；I-shaped boss 17 is provided on sliding block 16, and
The I-shaped sliding slot 18 cooperated with I-shaped boss 17 is provided on first compass foot 1.
When this programme is implemented, laser pen 9, the switch of laser pen 9 are installed on the support rod 12 of the inside center of sucker 8
10 are set on the outer wall of support rod 12；In use, the center of circle of circular arc is drawn needed for sucker 8 is fixed on, the design of laser pen 9,
It can be very good the center of assisted sucking disc 8 and being aligned for the circular arc center of circle, reduce picture error；Adjustment compasses bipod between away from
From when, sliding block 16 18 can move up and down along the chute, and simultaneous retractable bar 11 stretches, prevent adjustment bipod between distance
When, measuring rule is damaged, while increasing the radius that can draw circular arc, increases the practicability of compasses.
During drawing circular arc, picture person drives the paintbrush 13 on the second compass foot 2 drawing by rotating handle 15
Region inside-paint circular arc, while rotating ball 4 and being rotated in ball set 3, realize the purpose of picture circular arc；In the drive of telescopic rod 11
Under, measuring rule 7 follows the first compass foot 1 to rotate along scale, reaches the function of measurement circular arc central angle, and then realize that picture is any
The purpose of central angle.
The utility model is designed reasonably, structure is simple, by being carried out while drawing circular arc to the central angle of drawn circular arc
Measurement realizes the purpose that can draw any central angle；The person that sufficiently solves picture when drawing circular arc, need other measurement apparatus into
Row measurement defect, reduction draw circular arc when work step, shorten draw the time, improve picture efficiency, while subtracting significantly
Small picture error.
Claims (3)
1. the compasses that one kind can draw any central angle circular arc, which is characterized in that including the first compass foot (1) and the second compass foot
(2), first compass foot (1) is flexibly connected with the second compass foot (2), is provided with rotational circle on first compass foot (1)
Ball (4), it is described to rotate the ball set (3) being arranged on ball (4) with its clearance fit, branch is connected on the ball set (3)
Strut (12) is provided with sucker (8) on the support rod (12)；It is provided with graduation mark on the end face of the ball set (3), it is described
Be provided on graduation mark measuring rule (7), be provided with the connecting rod (6) of arc on the measuring rule (7), the connecting rod (6) with
Annular sleeve (5) connection being set on support rod (12), the annular sleeve (5) are flexibly connected with support rod (12)；Described first
It is provided on compass foot (1) sliding block (16), the boss (17) of I-shaped, the boss (17) is provided on the sliding block (16)
It is living between the sliding block (16) and measuring rule (7) in the sliding slot (18) for plugging the I-shaped opened up on the first compass foot (1)
It is dynamic to be connected with telescopic rod (11)；Paintbrush (13) are fixedly installed on second compass foot (2).
2. the compasses according to claim 1 for drawing any central angle circular arc, which is characterized in that extend to the sucker
(8) it is provided with laser pen (9), is provided on the outer wall of the support rod (12) with laser pen (9) even on the support rod (12) in
The switch (10) connect.
3. the compasses according to claim 1 for drawing any central angle circular arc, which is characterized in that first compass foot
(1) it is provided with compasses head (14) with the junction of the second compass foot (2), is provided with Anti-slip handle on the compasses head (14)
(15)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820305552.7U CN209395474U (en) | 2018-03-06 | 2018-03-06 | A kind of compasses for drawing any central angle circular arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820305552.7U CN209395474U (en) | 2018-03-06 | 2018-03-06 | A kind of compasses for drawing any central angle circular arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209395474U true CN209395474U (en) | 2019-09-17 |
Family
ID=67877390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820305552.7U Expired - Fee Related CN209395474U (en) | 2018-03-06 | 2018-03-06 | A kind of compasses for drawing any central angle circular arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209395474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026409A (en) * | 2020-08-10 | 2020-12-04 | 杨志荣 | Compasses equipment of mechanical drawing usefulness |
-
2018
- 2018-03-06 CN CN201820305552.7U patent/CN209395474U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112026409A (en) * | 2020-08-10 | 2020-12-04 | 杨志荣 | Compasses equipment of mechanical drawing usefulness |
| CN112026409B (en) * | 2020-08-10 | 2021-12-17 | 云阳县盘龙街道盘石小学 | Compasses equipment of mechanical drawing usefulness |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20200306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |