CN209600126U - A kind of Portable teaching compasses - Google Patents
A kind of Portable teaching compasses Download PDFInfo
- Publication number
- CN209600126U CN209600126U CN201822080350.XU CN201822080350U CN209600126U CN 209600126 U CN209600126 U CN 209600126U CN 201822080350 U CN201822080350 U CN 201822080350U CN 209600126 U CN209600126 U CN 209600126U
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- China
- Prior art keywords
- box
- button
- mandrel
- tape measure
- dynamic
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- Expired - Fee Related
Links
- 231100000572 poisoning Toxicity 0.000 claims description 2
- 230000000607 poisoning effect Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
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- Tape Measures (AREA)
Abstract
The utility model provides a kind of Portable teaching compasses, comprising: determines box, moves box, button, hand button, capping, tape measure, constant force spring, mandrel, sucker, compressed spring, chalk clamp.The sucker is located at the bottom of total, can be adsorbed on blackboard；Mandrel is fixedly connected with sucker, fixed box-packed on mandrel, can be rotated around mandrel；The dynamic box is located at the inside for determining box, is rotated by mating connection around box is determined；Described tape measure one end is fixed on dynamic box, other end stretching is determined to connect chalk clamp except box, determine that constant force spring is installed between box and dynamic box, tape measure positioning and automatic retracted may be implemented in the tape measure pulled out under the control of pinning and button, and tape measure has scale, and arbitrary dimension blackboard upper drawing circle in range may be implemented.
Description
Technical field
The utility model relates to instructional technology field more particularly to a kind of Portable teaching compasses.
Background technique
Teaching type compasses are typically all the drawing tool of mathematics and engineering graphics teaching.Traditional teaching aid for drawing is all
It is wooden big compasses, since its is larger, teachers carry bowlder that is more burdensome, and drawing on blackboard a determining size,
Circle could be drawn after needing to measure corresponding length on set square.
In order to solve the deficiency of above-mentioned conventional teaching compasses, a kind of Portable teaching compasses of the utility model, not only volume
It is small easy to carry, convenient for operation, the circle in arbitrary dimension range can also be drawn on blackboard.
Summary of the invention
(1) technical problems to be solved
In order to solve the above problem of the prior art, the utility model provides a kind of Portable teaching compasses.It solves
The technical issues of be: 1, reduce its structure size；2, compasses are fixed on blackboard；3, in the case where not having to ruler, Ke Yizhi
Connect picture circle.
(2) technical solution
In order to achieve the above object, the main technical schemes structure that the utility model uses includes: to determine box, dynamic box, button,
Hand button, capping, tape measure, constant force spring, mandrel, sucker, compressed spring, chalk clamp.The sucker is located at the bottom of total,
It can be adsorbed on blackboard；Mandrel is fixedly connected with sucker, fixed box-packed on mandrel, can be rotated around mandrel；The dynamic box position
In the inside for determining box, rotated by mating connection around box is determined；Described tape measure one end is fixed on dynamic box, the other end stretching determine box it
Outer connection chalk clamp determines to be equipped with constant force spring between box and dynamic box, and the tape measure pulled out can under the control of pinning and button
To realize tape measure positioning and automatic retracted, and tape measure has scale, and arbitrary dimension blackboard upper drawing circle in range may be implemented.
A kind of Portable teaching compasses, including dynamic box 1, determine box 2, button 3, cover 5, tape measure 6, constant force spring 7, mandrel 8,
Sucker 9, compressed spring 10 and chalk clamp 11；
The sucker 9 is located at the bottom of total, and one end of the mandrel 8 is inserted into the hole of sucker 9, and the other end penetrates
Determine the centre bore of box 2；
The dynamic box 1, which is located at, determine inside box 2, by with the cooperation radial positioning of determining box 2, dynamic box 1 with determine box 2 and pass through constant force
Spring 7 connects, and 7 inner end of constant force spring is fixed with box 2 is determined, and outer end and dynamic box 1 are fixed；
The tape measure 6 is wound on dynamic 1 outside of box, and one end of tape measure 6 is fixed on dynamic box 1, and the other end, which is pierced by, to be determined to connect outside box 2
Onto chalk clamp 11；
It is described to determine to be equipped with compressed spring 10 between box 2 and mandrel 8；
The button 3 is mounted on the upper end of compressed spring 10, and mandrel 8 passes through 3 centre bore of button, mentioning on button 3 and
The cooperation of mentioning on box 1 is moved, the rotational positioning to dynamic box 1 is formed, the mentioning on 5 of mentioning and cover on button 3 cooperatively forms
To the self poisoning of button 3.
Capping 5 described in technical solution is fixed on by screw 13 determines 2 upper end of box, and locating pin 12 holds out against dynamic across capping 5
Box 1 forms rotational positioning when extending to tape measure 6.
A kind of Portable teaching compasses further include hand button 4, and the hand button 4 is fixed on 8 shaft end of mandrel.
Chalk clamp 11 described in technical solution be half opening formula, pinning 14 twist and by way of chalk is fixed.
(3) beneficial effect
The beneficial effects of the utility model are: entire teaching type compasses are using the tape measure knot for determining box, dynamic box, tape measure composition
Structure, it is small in size, it is compact-sized；Tape measure has scale, and the circle that size is arbitrarily designated in range can be drawn on blackboard.
In conclusion the Portable teaching compasses of the utility model have advantage small in size, easy to use.
Detailed description of the invention
Fig. 1 is the general assembly schematic diagram of the Portable teaching compasses in the utility model embodiment one；
Fig. 2 is the dynamic box top view of the Portable teaching compasses in the utility model embodiment one；
Fig. 3 is the A-A section of Fig. 2；
Fig. 4 is that Portable teaching compasses in the utility model embodiment one determine box cross-sectional view；
Fig. 5 is the button top view of the Portable teaching compasses in the utility model embodiment one；
Fig. 6 is the B-B cross-sectional view of Fig. 5；
Fig. 7 is the button main view of the Portable teaching compasses in the utility model embodiment one；
Fig. 8 is the button side view of the Portable teaching compasses in the utility model embodiment one；
Fig. 9 is the capping top view of the Portable teaching compasses in the utility model embodiment one；
Figure 10 is the C-C cross-sectional view of Fig. 9；
Figure 11 is the core shaft structure figure of the Portable teaching compasses in the utility model embodiment one；
Figure 12 is the sucker main view of the Portable teaching compasses in the utility model embodiment one；
Figure 13 is the chalk clamp structure chart of the Portable teaching compasses in the utility model embodiment one.
[description of symbols]
1- moves box, and 2- determines box, 3- button, 4- hand button, 5- capping, 6- tape measure, 7- constant force spring, 8- mandrel, 9- sucker,
10- compressed spring, 11- chalk clamp, 12- locating pin, 13- screw, 14- pinning.
Wherein, 1-1 mentions for A, and 1-2 is ruler slot, and 1-3 is the hole A, and 1-4 is the hole B, and 1-5 is A outer circle, and 1-6 is the hole C, and 2-1 is
B outer circle, 2-2 are C outer circle, and 2-3 is the hole D, and 2-4 is the hole E, and 2-5 is the hole F, and 3-1 mentions for B, and 3-2 is the hole G, and 4-1 is hand retaining ring,
4-2 is screw thread, and 5-1 mentions for C, and 5-2 is the hole H, and 5-3 is A threaded hole, and 8-1 is B threaded hole, and 8-2 is D outer circle, and 8-3 is outside E
Circle, 9-1 are the hole I.
Specific embodiment
In order to preferably explain the utility model, 1-9, practical new to this by specific embodiment with reference to the accompanying drawing
Type is described in detail.
Embodiment one
Referring to Fig.1-13, the present embodiment provides a kind of Portable teaching compasses, structure includes dynamic box 1, determines box 2, button
3, hand button 4, capping 5, tape measure 6, constant force spring 7, mandrel 8, sucker 9, compressed spring 10, chalk clamp 11, locating pin 12, screw 13
With pinning 14.
The sucker 9 is located at the bottom of total, in the hole the H 9-1 of one end E outer circle 8-3 insertion sucker 9 on mandrel 8
For clearance fit, other end D outer circle 8-2 is penetrated in the hole the D 2-4 for determine box 2 as clearance fit；Dynamic box 1, which is located at, to be determined inside box 2, fixed
It is clearance fit in the hole the A 1-3 that C outer circle 2-2 on box 2 is inserted on dynamic box 1, radial positioning is formed to dynamic box 1；It moves box 1 and determines
Box 2 is connected by constant force spring 7, and 7 inner end of constant force spring, which is fixed on, determines on box 2 on B outer circle 2-1, and outer end is fixed on dynamic box 1
On the 1-6 of the hole C；Tape measure 6 is wound in the ruler slot 1-2 in dynamic 1 outside of box, and one end of tape measure 6 is fixed on the interior of the ruler slot 1-2 on dynamic box 1
On circle, the other end is pierced by outside the hole the F 2-5 determined on box 2 and is connected in chalk clamp 11；On determining the hole D 2-3 and mandrel 8 on box 2
There is compressed spring 10 between D outer circle 8-2, button 3 is mounted on the upper end of compressed spring 10, and the D outer circle 8-2 shaft part on mandrel 8 is worn
The hole the G 3-2 clearance fit on button 3 is crossed, the B on button 3 mentions the A on 3-1 and dynamic box 1 and mentions 1-1 cooperation, formed to dynamic box
1 rotational positioning, the C that the B on button 3 mentions on 3-1 and capping 5 mention 5-1 mention cooperatively form to button 3 itself is fixed
Position；Capping 5 is fixed on by screw 13 determines 2 upper end of box, and the A threaded hole 5-3 that locating pin 12 passes through in capping 5 holds out against dynamic box 1, shape
The rotational positioning when tape measure 6 of dynamic box 1 extends in pairs；
Further, the hand button 4 is screwed into the B threaded hole 8-1 on mandrel 8 by screw thread 4-2, can pass through finger
It penetrates in the hand retaining ring 4-1 on button 4 in one's hands, facilitates managing for entire Portable compasses；
Further, the chalk clamp 11 is half opening formula, can be twisted pinning 14 and by way of to the powder of any size
Pen is fixed；
Further, 6 overhang of tape measure is equivalent by calculating, it is possible to specify any size size draws circle in range.
A kind of Portable teaching compasses of the present embodiment as a result, with advantage small in size, easy to use.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as
Limitations of the present invention.
Claims (4)
1. a kind of Portable teaching compasses, it is characterised in that: including dynamic box (1), determine box (2), button (3), capping (5), tape measure
(6), constant force spring (7), mandrel (8), sucker (9), compressed spring (10) and chalk clamp (11)；
The sucker (9) is located at the bottom of total, and one end of the mandrel (8) is inserted into the hole of sucker (9), and the other end is worn
Enter to determine the centre bore of box (2)；
The dynamic box (1), which is located at, determine that box (2) is internal, by with the cooperation radial positioning of determining box (2), dynamic box (1) and determine box (2) and lead to
It crosses constant force spring (7) connection, constant force spring (7) inner end and determines that box (2) are fixed, and outer end and dynamic box (1) are fixed；
The tape measure (6) is wound on the outside of dynamic box (1), and one end of tape measure (6) is fixed on dynamic box (1), and the other end, which is pierced by, determines box (2)
It is connected on chalk clamp (11) outside；
It is described to determine to be equipped with compressed spring (10) between box (2) and mandrel (8)；
The button (3) is mounted on the upper end of compressed spring (10), and mandrel (8) is on button (3) centre bore, button (3)
The cooperation of mentioning on box (1) is mentioned and moved, the rotational positioning to dynamic box (1), mentioning and covering on (5) on button (3) are formed
Mention the self poisoning cooperatively formed to button (3).
2. a kind of Portable teaching compasses as described in claim 1, it is characterised in that: the capping (5) passes through screw (13)
It is fixed on and determines box (2) upper end, locating pin (12) passes through capping (5) and holds out against dynamic box (1), forms rotation when extending to tape measure (6)
Positioning.
3. a kind of Portable teaching compasses as described in claim 1, it is characterised in that: further include hand button (4), the hand button
(4) it is fixed on mandrel (8) shaft end.
4. a kind of Portable teaching compasses as described in claim 1, it is characterised in that: the chalk clamp (11) is half opening
Formula, pinning (14) twist and by way of chalk is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822080350.XU CN209600126U (en) | 2018-12-11 | 2018-12-11 | A kind of Portable teaching compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822080350.XU CN209600126U (en) | 2018-12-11 | 2018-12-11 | A kind of Portable teaching compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209600126U true CN209600126U (en) | 2019-11-08 |
Family
ID=68395762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822080350.XU Expired - Fee Related CN209600126U (en) | 2018-12-11 | 2018-12-11 | A kind of Portable teaching compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209600126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171236A (en) * | 2018-12-11 | 2019-08-27 | 肇庆学院 | A kind of Portable teaching compasses |
-
2018
- 2018-12-11 CN CN201822080350.XU patent/CN209600126U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110171236A (en) * | 2018-12-11 | 2019-08-27 | 肇庆学院 | A kind of Portable teaching compasses |
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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: 20191108 |