CN207088801U - A kind of compasses for teaching - Google Patents
A kind of compasses for teaching Download PDFInfo
- Publication number
- CN207088801U CN207088801U CN201720365050.9U CN201720365050U CN207088801U CN 207088801 U CN207088801 U CN 207088801U CN 201720365050 U CN201720365050 U CN 201720365050U CN 207088801 U CN207088801 U CN 207088801U
- Authority
- CN
- China
- Prior art keywords
- sucker
- leg
- groove
- push rod
- compasses
- 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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Abstract
The utility model discloses a kind of compasses for teaching, including compass body, sucker push rod, chalk mounting head, screw installing hole is housed in compass body, second leg, two level leg fixed screw, two level leg groove, two level leg, chalk mounting head, locking cap, sucker, second leg groove, sucker push rod groove, sucker push rod, first leg, sucker pusher grip, elastic set screw, sucker is carried load or luggage, spring, sucker is carried load or luggage mounting groove, screw thread, flexible notch, groove pin, the utility model can arbitrarily adjust the angle between two supporting legs by elastic set screw, avoid making a fault in use, realize 360 degree of rotations of two legs, it is easy to use.The compasses fix centre point using sucker simultaneously, and blackboard will not be caused damage, and can replace ruler, set square etc., measure long measure and make symmetric figure, reach one-object-many-purposes, facilitate teacher's teaching of use instrument in handy ground in teaching, improve quality of instruction.
Description
Technical field
A kind of teaching aid is the utility model is related to, specially a kind of compasses for teaching.
Background technology
The upper widely used compasses of teaching at present, are made up of moving gauge foot and quiet regulation foot.There is chalk chuck moving gauge foot lower end, quiet
Regulation foot lower end is guide pile.During mapping, the point that quiet regulation foot guide pile is positioned on blackboard is the center of circle.Due to guide pile and black
Plate belongs to hard material together, so guide pile is easy to skid and produce displacement on blackboard in mapping, so that the figure made is not
Rule can not even map.
Compasses are essential educational aids in teaching, and most common compasses for teaching all includes compass shelf, compass shelf
One end is provided with the fixed pin for fixing a bit, and the other end of compass shelf is provided with the housing sleeve for placing chalk.Make
Used time, fixed pin is penetrated into blackboard, then drawn, it is long because most of blackboard is all made of wood materials
The use of time, blackboard can be damaged.And when the distance between two legs of compasses are larger, easily there is sliding phenomenon, it is this
Defect embodies particularly evident in the compasses that teacher uses.Because the hardness of blackboard is larger, the center of circle is more difficult to fix.Although
Now with compasses will be replaced for the needle point for fixing the center of circle with sucker, but the distance between two legs still hold when drawing
Easily change, influence picture effect.The compasses that use of existing teacher simultaneously, due to compass leg apart from blackboard surface farther out, specific
Inconvenient problem with use is still had during picture in addition, compasses are placed in classroom, if student plays, it is hidden to there is safety
Suffer from.Meanwhile all directly the distance between two gauge bars of regulation are all manually to adjust to traditional compasses, due to two rule
Bar can not be fixed, during compasses, it is easy to make a fault.It is that can not realize 360 between traditional two legs of compasses
Degree rotation, using there is certain limitation, is easily damaged.
Thus traditional compasses in use, firmly too light, easily move by the center of circle, and what is drawn is not just circle,
Bring great inconvenience to teaching, firmly easily follow closely very much bad blackboard again again, cause blackboard in-convenience in use；Meanwhile now
The calipers function used is single, can only draw circle, teacher usually needs to hold dais on several educational aids, very inconvenient.
The function of compasses for teaching is preferable not enough in currently available technology.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, easy to manufacture, dependable performance, mapped quick etc. excellent
Point, 360 degree of rotations of two legs, user are realized especially suitable for drawing circle in blackboard, metope and various hard plate faces
Just, and a kind of non-damageable compasses for teaching, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of compasses for teaching, including compasses
Body, sucker push rod, chalk mounting head, the compass body are provided with the first leg, and the side of first leg is provided with the
Two legs, one end of first leg are provided with screw installing hole, elastic set screw are provided with inside the screw installing hole, the
One leg is connected with each other with the second leg by elastic set screw.
Preferably, the side of first leg is provided with sucker push rod groove, and the inside of the sucker push rod groove is provided with sucker
Push rod, the top of the sucker push rod are provided with sucker pusher grip, and sucker pusher grip is connected with each other with sucker push rod, and described the
The inner side of one leg is provided with the second leg groove, and the bottom of first leg is provided with sucker.
Preferably, the inside of second leg is provided with two level leg groove, and the inside of the two level leg groove is provided with two level
Leg, the inside of the two level leg are provided with two level leg fixed screw, and the second leg is consolidated with two level leg by two level leg
Determine screw interconnection, the bottom of the two level leg is provided with chalk mounting head, and the lower section of the chalk mounting head, which is provided with, to be fixed
Cap, locking cap are connected with each other with chalk mounting head.
Preferably, side is carried load or luggage provided with sucker below the sucker push rod, and sucker is carried load or luggage to be connected with each other with sucker push rod, institute
The side of sucker push rod to be stated to carry load or luggage mounting groove provided with sucker, the carry load or luggage side of mounting groove of the sucker is provided with spring, and the one of spring
End is carried load or luggage interconnections with sucker, and the other end and the sucker of spring mounting groove of carrying load or luggage are connected with each other.
Preferably, one end of the chalk mounting head is provided with groove pin, and the groove pin is provided with screw thread, set between the groove pin
There is flexible notch.
Compared with prior art, the beneficial effects of the utility model are：
（1）Compasses for teaching have it is simple in construction, it is easy to manufacture, dependable performance, map the advantages that quick, it is especially suitable
For drawing circle in blackboard, metope and various hard plate faces.
（2）Compasses for teaching can arbitrarily adjust the angle between two supporting legs by elastic set screw, avoid
Make a fault in use, realize 360 degree of rotations of two legs, it is easy to use, and be hardly damaged.
（3）Compasses for teaching fixes centre point using sucker, and blackboard will not be caused damage, and can replace straight
Chi, set square etc., measure long measure and make symmetric figure, reach one-object-many-purposes, facilitating teacher to obtain the heart in teaching should
Hand ground teaching of use instrument, improves quality of instruction.Compasses are placed in classroom simultaneously, if student plays, safety is also not present
Hidden danger.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model compass body；
Fig. 2 is the structural representation of the utility model sucker push rod；
Fig. 3 is the structural representation of the utility model chalk mounting head.
In figure：1st, compass body；2nd, screw installing hole；3rd, the second leg；4th, two level leg fixed screw；5th, two level leg
Groove；6th, two level leg；7th, chalk mounting head；8th, locking cap；9th, sucker；10th, the second leg groove；11st, sucker push rod groove；12nd, inhale
Disk push rod；13rd, the first leg；14th, sucker pusher grip；15th, elastic set screw；16th, sucker is carried load or luggage；17th, spring；18th, inhale
Disk is carried load or luggage mounting groove；19th, screw thread；20th, stretch notch；21st, groove pin.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, the utility model provides a kind of technical scheme：A kind of compasses for teaching, in compass body 1
Provided with the first leg 13, the side of the first leg 13 is provided with the second leg 3, and one end of the first leg 13 is provided with screw installing hole 2,
The inside of screw installing hole 2 is provided with elastic set screw 15, and the first leg 13 is mutual by elastic set screw 15 with the second leg 3
Connection.
Sucker push rod groove 11 is provided with the side of the first leg 13, the inside of sucker push rod groove 11 is provided with sucker push rod 12,
The top of sucker push rod 12 is provided with sucker pusher grip 14, and sucker pusher grip 14 is connected with each other with sucker push rod 12, first
The inner side of pin 13 is provided with the second leg groove 10, and the bottom of the first leg 13 is provided with sucker 9.
Two level leg groove 5 is provided with the inside of the second leg 3, the inside of two level leg groove 5 is provided with two level leg 6, two level
The inside of leg 6 is provided with two level leg fixed screw 4, and the second leg 3 passes through the phase of two level leg fixed screw 4 with two level leg 6
Connect, chalk mounting head 7 is provided with the bottom of two level leg 6, the lower section of chalk mounting head 7 is provided with locking cap 8, locking cap 8
It is connected with each other with chalk mounting head 7.
Referring to Fig. 2, side carries load or luggage 16 provided with sucker below sucker push rod 12, sucker carry load or luggage 16 with the phase of sucker push rod 12
Connecting, the side of sucker push rod 12 is carried load or luggage mounting groove 18 provided with sucker, and the carry load or luggage side of mounting groove 18 of sucker is provided with spring 17,
One end of spring 17 and sucker are carried load or luggage 16 interconnections, and the other end and the sucker of spring 17 mounting groove 18 of carrying load or luggage are connected with each other.
Referring to Fig. 3, one end of chalk mounting head 7 is provided with groove pin 21, groove pin 21 is provided with screw thread 19, set between groove pin 21
There is flexible notch 20.
The device can arbitrarily adjust the angle between two supporting legs by elastic set screw, avoid in use
Make a fault, realize 360 degree of rotations of two legs, it is easy to use, and be hardly damaged.The compasses are fixed using sucker simultaneously
Centre point, blackboard will not be caused damage, and ruler, set square etc. can be replaced, measured long measure and make symmetrical
Figure, reach one-object-many-purposes, facilitate teacher's teaching of use instrument in handy ground in teaching, improve quality of instruction.Simultaneously
Compasses are placed in classroom, if student plays, also in the absence of potential safety hazard.
The device have it is simple in construction, it is easy to manufacture, dependable performance, map the advantages that quick, especially suitable for blackboard,
Circle is drawn on metope and various hard plate faces,
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of compasses for teaching, including compass body（1）, sucker push rod（12）, chalk mounting head（7）, its feature exists
In：The compass body（1）It is provided with the first leg（13）, first leg（13）Side be provided with the second leg（3）, institute
State the first leg（13）One end be provided with screw installing hole（2）, the screw installing hole（2）Inside is provided with elastic set screw
（15）, the first leg（13）With the second leg（3）Pass through elastic set screw（15）It is connected with each other.
A kind of 2. compasses for teaching according to claim 1, it is characterised in that：First leg（13）Side
Provided with sucker push rod groove（11）, the sucker push rod groove（11）Inside be provided with sucker push rod（12）, the sucker push rod（12）
Top be provided with sucker pusher grip（14）, sucker pusher grip（14）With sucker push rod（12）It is connected with each other, described first
Pin（13）Inner side be provided with the second leg groove（10）, first leg（13）Bottom be provided with sucker（9）.
A kind of 3. compasses for teaching according to claim 1, it is characterised in that：Second leg（3）Inside
Provided with two level leg groove（5）, the two level leg groove（5）Inside be provided with two level leg（6）, the two level leg（6）It is interior
Portion is provided with two level leg fixed screw（4）, the second leg（3）With two level leg（6）Pass through two level leg fixed screw（4）Mutually
Connection, the two level leg（6）Bottom be provided with chalk mounting head（7）, the chalk mounting head（7）Lower section be provided with locking cap
（8）, locking cap（8）With chalk mounting head（7）It is connected with each other.
A kind of 4. compasses for teaching according to claim 2, it is characterised in that：The sucker push rod（12）Lower section one
Carried load or luggage provided with sucker side（16）, sucker carries load or luggage（16）With sucker push rod（12）It is connected with each other, the sucker push rod（12）Side
Carried load or luggage mounting groove provided with sucker（18）, the sucker carries load or luggage mounting groove（18）Side be provided with spring（17）, spring（17）One
Carried load or luggage with sucker at end（16）It is connected with each other, spring（17）The other end and sucker carry load or luggage mounting groove（18）It is connected with each other.
A kind of 5. compasses for teaching according to claim 3, it is characterised in that：The chalk mounting head（7）One
End is provided with groove pin（21）, the groove pin（21）It is provided with screw thread（19）, the groove pin（21）Between be provided with flexible notch（20）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365050.9U CN207088801U (en) | 2017-04-10 | 2017-04-10 | A kind of compasses for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720365050.9U CN207088801U (en) | 2017-04-10 | 2017-04-10 | A kind of compasses for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207088801U true CN207088801U (en) | 2018-03-13 |
Family
ID=61549767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720365050.9U Expired - Fee Related CN207088801U (en) | 2017-04-10 | 2017-04-10 | A kind of compasses for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207088801U (en) |
-
2017
- 2017-04-10 CN CN201720365050.9U patent/CN207088801U/en not_active Expired - Fee Related
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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: 20180313 Termination date: 20190410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |