CN204894894U - Novel compasses are used in teaching - Google Patents
Novel compasses are used in teaching Download PDFInfo
- Publication number
- CN204894894U CN204894894U CN201520599112.3U CN201520599112U CN204894894U CN 204894894 U CN204894894 U CN 204894894U CN 201520599112 U CN201520599112 U CN 201520599112U CN 204894894 U CN204894894 U CN 204894894U
- Authority
- CN
- China
- Prior art keywords
- punch block
- handle
- pivot punch
- compasses
- pivot
- 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
The utility model discloses a novel compasses are used in teaching belongs to the teaching aid field, including handle, xarm and pivot punch block, be equipped with the drum in the middle of the handle, be equipped with the chalk cover at the lower extreme of handle, the one end of xarm is equipped with fixing device, the migration of pivot punch block is on this xarm, and this pivot punch block passes through the cylinder bearing to be connected with fixed needle, is equipped with anti -skidding sleeve gasket at this fixed needle lower extreme, be equipped with a migration between pivot punch block and the fixing device and support, still be equipped with symmetrical size on two walls of this xarm. The beneficial effect of the utility model: handle and pivot punch block adopt the articulated mode of connecting and selling the hub connection for the handle can just can be fixed in certain angle along the direction of radius swing of circle, can satisfy individual custom and comfortable angle and draw, the degree of depth of pen container can be adjusted along with the length of chalk, fixed needle and pivot punch block are rotatable connected mode, avoid fixed needle because the rotatory damage that causes the blackboard.
Description
Technical field
The utility model belongs to teaching aid technical field, is a kind of compasses for teaching specifically.
Background technology
Current compasses for teaching mostly is dichotomous compasses, and in use, we find many problems, also bring a lot of inconvenience to teaching, as: locking pin easily slides, and needs to be very careful in operation, and locking pin is easy to cause damage to blackboard; Some compasses sucker replaces locking pin, and finds through using, and the adsorption effect of sucker is not very desirable, and long-term use is easy to make sucker aging and lose suction-operated, and when drawing on blackboard, sucker is easy to damage original figure line.
The utility model is the compasses of CN100475555 in conjunction with the patent No., and comprehensively current compasses for teaching produced problem in use, contemplates a kind of applicable teaching, is specially adapted to the compasses for teaching of drawing on blackboard.
Utility model content
The purpose of this utility model provides a kind of applicable teaching, is specially adapted to the compasses for teaching of drawing on blackboard.
For achieving the above object, the technical solution of the utility model, comprise handle, transverse arm and pivot punch block, it is characterized in that, cylinder is provided with in the middle of described handle, one end of described transverse arm is provided with fixture, chalk sleeve is provided with in the lower end of this fixture, the migration of described pivot punch block is on this transverse arm, this pivot punch block is connected with locking pin by cylindrical bearing, be provided with anti-skidding sleeve gasket in this locking pin lower end, be provided with a migration between described pivot punch block and fixture and support, two walls of this transverse arm are also provided with symmetrical size.
As preferably, described transverse arm is connected with pivot punch block by hinged ball, is provided with the ball chamber of matching with hinged ball in described fixture.
As preferably, one end that described migration supports is connected with cylinder by bearing pin.
As preferably, described cylinder and the connected mode of handle are that cylindrical bearing is connected.
As preferably, described chalk sleeve periphery is provided with retainer ring.
As preferably, the material of described anti-skidding sleeve gasket is rubber.
Owing to adopting technique scheme, the beneficial effects of the utility model are:
1. handle and pivot punch block adopt and are articulated and connected and the mode of pinned connection, make handle to swing along radius of a circle direction and can be fixed on certain angle, can meet personal habits and comfortable angle is drawn, and achieve individuation.
2. the degree of depth of pen container can regulate along with the length of chalk.
3. locking pin and pivot punch block are rotatable connected mode, avoid locking pin in prior art in drawing course owing to rotating the damage caused blackboard.
4. the setting of Anti-slip cover can increase the frictional force between locking pin and blackboard, prevents locking pin from breakking away.
Accompanying drawing explanation
Now by reference to the accompanying drawings the utility model is described further.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is profile of the present utility model.
In figure: 1, handle, 2, transverse arm, 3, pivot punch block, 4, cylinder, 5, fixture, 6, chalk sleeve, 7, cylindrical bearing, 8, locking pin, 9, anti-skidding sleeve gasket, 10, migration supports, 11, size, 12, hinged ball, 13, ball chamber, 14, bearing pin, 15, retainer ring.
Detailed description of the invention
As shown in Figure 1, 2, the utility model comprises handle 1, transverse arm 2 and pivot punch block 3, it is characterized in that, cylinder 4 is provided with in the middle of described handle 1, one end of described transverse arm 2 is provided with fixture 5, chalk sleeve 6 is provided with in the lower end of this fixture, the migration of described pivot punch block 3 is on this transverse arm 2, this pivot punch block 3 is connected with locking pin 8 by cylindrical bearing 7, anti-skidding sleeve gasket 9 is provided with in this locking pin 8 lower end, be provided with a migration between described pivot punch block 3 and fixture 5 and support 10, two walls of this transverse arm 2 are also provided with symmetrical size 11.
Described transverse arm 2 is connected with pivot punch block 3 by hinged ball 12, is provided with the ball chamber 13 of matching with hinged ball 12 in described fixture 5.
One end of described migration support 10 is connected with cylinder 4 by bearing pin 14.
Described cylinder 4 and the connected mode of handle 1 are that cylindrical bearing 7 is connected.
Described chalk sleeve 6 periphery is provided with retainer ring 15.
The material of described anti-skidding sleeve gasket 9 is rubber.
Operation principle of the present utility model: chalk is loaded chalk sleeve 6, pulls retainer ring 15 to be fixed by chalk downwards; After regulating handle 1 to suitable angle, support 10 fixed handles 1 by migration; Pivot punch block 3 is regulated according to radius of a circle will be drawn, rear fixing; Pin locking pin 8 in the center of circle on the other hand, another holds handle 1 and carries out painting circle.
Claims (6)
1. a compasses for teaching, comprise handle, transverse arm and pivot punch block, it is characterized in that: in the middle of described handle, be provided with cylinder, one end of described transverse arm is provided with fixture, is provided with chalk sleeve in the lower end of this fixture, and the migration of described pivot punch block is on this transverse arm, this pivot punch block is connected with locking pin by cylindrical bearing, be provided with anti-skidding sleeve gasket in this locking pin lower end, be provided with a migration between described pivot punch block and fixture and support, two walls of this transverse arm are also provided with symmetrical size.
2. a kind of compasses for teaching according to claim 1, is characterized in that: described transverse arm is connected with pivot punch block by hinged ball, is provided with the ball chamber of matching with hinged ball in described fixture.
3. a kind of compasses for teaching according to claim 1 and 2, is characterized in that: one end that described migration supports is connected with cylinder by bearing pin.
4. a kind of compasses for teaching according to claim 3, is characterized in that: described cylinder and the connected mode of handle are that cylindrical bearing is connected.
5. a kind of compasses for teaching according to claim 1, is characterized in that: described chalk sleeve periphery is provided with retainer ring.
6. a kind of compasses for teaching according to claim 1, is characterized in that: the material of described anti-skidding sleeve gasket is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599112.3U CN204894894U (en) | 2015-08-11 | 2015-08-11 | Novel compasses are used in teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599112.3U CN204894894U (en) | 2015-08-11 | 2015-08-11 | Novel compasses are used in teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204894894U true CN204894894U (en) | 2015-12-23 |
Family
ID=54917102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520599112.3U Expired - Fee Related CN204894894U (en) | 2015-08-11 | 2015-08-11 | Novel compasses are used in teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204894894U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103809A (en) * | 2021-05-25 | 2021-07-13 | 哈尔滨学院 | Ruler device for drawing |
-
2015
- 2015-08-11 CN CN201520599112.3U patent/CN204894894U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113103809A (en) * | 2021-05-25 | 2021-07-13 | 哈尔滨学院 | Ruler device for drawing |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20160811 |