CN207173121U - A kind of teaching circle tool - Google Patents
A kind of teaching circle tool Download PDFInfo
- Publication number
- CN207173121U CN207173121U CN201720497027.5U CN201720497027U CN207173121U CN 207173121 U CN207173121 U CN 207173121U CN 201720497027 U CN201720497027 U CN 201720497027U CN 207173121 U CN207173121 U CN 207173121U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- top bars
- lower strip
- groove
- regulation clamp
- 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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- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The utility model discloses a kind of teaching circle tool, including lower strip, top bars, sucker, adjust clamp, the top bars are located at the top of lower strip, graduation mark is equipped with top bars and lower strip, the top bars and lower strip one end are linked together by the first sleeve, a pull post is installed with first sleeve, pull column bottom is fixed with a sucker, the center line of the top bars is provided with one and moves towards identical groove with top bars, a regulation clamp is covered with top bars, it is in inverted U-shaped to adjust clamp, regulation clamp is provided with second sleeve, second sleeve is stretched into groove, a downward opening placing tube for being used to be put into chalk is placed with second sleeve, it is stamped one and tightens lid in second sleeve bottom, tighten base portion and be provided with a spring, the spring other end is fixed with a tabletting.The utility model is easily adjusted by the way that regulation clamp is arranged on into picture bowlder radius in top bars, and it is convenient to do circle.
Description
【Technical field】
It the utility model is related to the technical field of the technical field of teaching aid, particularly circle tool.
【Background technology】
It can be used in teaching process and arrive many instruments, and circle tool is a kind of conventional instrument.Existing teaching is used
Circle tool be generally the compasses of large size, it easily skids when in use, and due to the characteristic of chalk, during circle is drawn with
Certain deviation can be produced by the consumption of chalk, and the circle head and the tail drawn easily produce phenomenon of interlocking.
【Utility model content】
The purpose of this utility model is exactly to solve the problems of the prior art, proposes a kind of teaching circle tool, can
Picture circle is become more accurate, while there is the function of ruler.
To achieve the above object, the utility model proposes a kind of teaching circle tool, including lower strip, top bars,
Sucker, regulation clamp, the top bars are located at the top of lower strip, are equipped with graduation mark in top bars and lower strip, it is described on
Lath and lower strip one end are linked together by the first sleeve, and a pull post is installed with the first sleeve, and pull column bottom is consolidated
Surely there is a sucker, the center line of the top bars is provided with one and moves towards identical groove with top bars, is covered with top bars
One regulation clamp, regulation clamp is in inverted U-shaped, and regulation clamp is provided with second sleeve, and second sleeve is stretched into groove, the
A downward opening placing tube for being used to be put into chalk is placed with two sleeves, second sleeve bottom is stamped one and tightens lid,
Tighten base portion and be provided with a spring, the spring other end is fixed with a tabletting, and tabletting contacts with placing tube tight.
Lead to preferably, being offered on the top bars and lower strip for the through hole through the first sleeve, lower strip
Bottom hole portion is provided with a lower annular groove, and the first sleeve bottom is provided with back-up ring, and back-up ring is located in lower annular groove, the through hole top of top bars
Portion is provided with a upper annular groove, is screwed with a nut at the top of the first sleeve, nut is located in upper annular groove.
Preferably, the depth of the lower annular groove is more than collar thickness and the summation of sucker original height.
Preferably, square outside the second sleeve, second sleeve two side is in contact with groove side wall.
Preferably, the top bars both sides are respectively provided with a guide groove, regulation clamp inwall is provided with and guide groove phase
The gib block of cooperation.
Preferably, the regulation clamp is provided with some fastening bolts, fastening bolt penetrate regulation clamp side wall and
Top bars are in close contact.
The beneficial effects of the utility model：The utility model by regulation clamp by being arranged on picture bowlder in top bars
Radius is easily adjusted, and it is convenient to do circle；Spring and placing tube are engaged so that chalk can be brought into close contact with blackboard all the time, and picture circle is
Real radius will not change so that it is more preferable to draw circle effect；The setting of sucker make it that doing the bowlder center of circle is not susceptible to change, and makes
It is more convenient that circle must be drawn.
Feature and advantage of the present utility model will be described in detail by embodiment combination accompanying drawing.
【Brief description of the drawings】
Fig. 1 is a kind of front view of teaching circle tool of the utility model；
Fig. 2 is a kind of partial left side view of teaching circle tool of the utility model.
In figure：1- top bars, 2- lower strips, the sleeves of 3- first, 4- regulations clamp, 10- guide grooves, 11- grooves, 30- lead to
Annular groove, 32- back-up rings, the upper annular grooves of 33-, 34- nuts, 35- pulls post, 36- suckers, 40- gib blocks, 41- under hole, 31-
Two sleeves, 42- placing tubes, 45- tighten lid, 46- springs, 47- tablettings, 49- fastening bolts.
【Embodiment】
Refering to Fig. 1 and Fig. 2, the utility model one kind teaching circle tool, including lower strip 2, top bars 1, sucker 36,
Adjust clamp 4, the top bars 1 are located at the top of lower strip 2, are equipped with graduation mark in top bars 1 and lower strip 2, it is described on
Lath 1 and the one end of lower strip 2 are linked together by the first sleeve 3, and a pull post 35, pull post are installed with the first sleeve 3
35 bottoms are fixed with a sucker 36, and the center line of the top bars 1 is provided with one and moves towards identical groove with top bars 1
11, a regulation clamp 4 is covered with top bars 1, regulation clamp 4 be in inverted U-shaped, adjusts clamp 4 and is provided with second sleeve 41,
Second sleeve 41 is stretched into groove 11, and a downward opening placing tube for being used to be put into chalk is placed with second sleeve 41
42, the bottom of second sleeve 41 is stamped one and tightens lid 45, tightens the bottom of lid 45 and is provided with a spring 46, the other end of spring 46 is fixed
There is a tabletting 47, tabletting 47 contacts with the tight of placing tube 42, is offered in the top bars 1 and lower strip 2 for wearing
The through hole 30 of the first sleeve 3 is crossed, the bottom of through hole 30 of lower strip 2 is provided with a lower annular groove 31, and the bottom of the first sleeve 3 is provided with gear
Circle 32, back-up ring 32 is located in lower annular groove 31, and the top of through hole 30 of top bars 1 is provided with a upper annular groove 33, and the first sleeve 3 pushes up
Portion is screwed with a nut 34, and nut 34 is located in upper annular groove 33, the depth of the lower annular groove 31 be more than the thickness of back-up ring 32 with
The summation of the original height of sucker 36, the outside of second sleeve 41 is square, the two side of second sleeve 41 and the side wall of groove 11
It is in contact, the both sides of top bars 1 are respectively provided with a guide groove 10, and regulation clamp 4 inwall is provided with to be engaged with guide groove 10
Gib block 40, the regulation clamp 4 is provided with some fastening bolts 49, fastening bolt 49 penetrate regulation clamp 4 side wall and
Top bars 1 are in close contact.
Utility model works process：
With circle tool in the course of the work, regulation clamp 4 is arranged in top bars 1 to be caused the teaching of the utility model one kind
Draw bowlder radius easily to adjust, it is convenient to do circle；Spring 46 and placing tube 42 are engaged so that chalk can be pasted closely with blackboard all the time
Close, and it is that real radius will not change to draw circle so that it is more preferable to draw circle effect；The setting of sucker 36 to do the bowlder center of circle not
Easily change so that it is more convenient to draw circle.
Above-described embodiment be to explanation of the present utility model, be not to restriction of the present utility model, it is any new to this practicality
Scheme after type simple transformation belongs to the scope of protection of the utility model.
Claims (6)
- A kind of 1. teaching circle tool, it is characterised in that：Including lower strip (2), top bars (1), sucker (36), regulation clamp (4), the top bars (1) are located at the top of lower strip (2), and graduation mark is equipped with top bars (1) and lower strip (2), described Top bars (1) and lower strip (2) one end are linked together by the first sleeve (3), and a pull post is installed with the first sleeve (3) (35), pull post (35) bottom is fixed with a sucker (36), and the center line of the top bars (1) is provided with one and top bars (1) identical groove (11) is moved towards, a regulation clamp (4) is covered with top bars (1), regulation clamp (4) is in inverted U-shaped, Regulation clamp (4) is provided with second sleeve (41), and second sleeve (41) is stretched into groove (11), is placed with second sleeve (41) One downward opening placing tube (42) for being used to be put into chalk, second sleeve (41) bottom is stamped one and tightens lid (45), twists Tight lid (45) bottom is provided with a spring (46), and spring (46) other end is fixed with a tabletting (47), and tabletting (47) is with placing Cylinder (42) tight contact.
- 2. one kind teaching circle tool as claimed in claim 1, it is characterised in that：The top bars (1) and lower strip (2) On offer for through the first sleeve (3) through hole (30), through hole (30) bottom of lower strip (2) is provided with a lower annular groove (31), the first sleeve (3) bottom is provided with back-up ring (32), and back-up ring (32) is located in lower annular groove (31), the through hole of top bars (1) (30) top is provided with a upper annular groove (33), is screwed with a nut (34) at the top of the first sleeve (3), nut (34) is located at upper ring In shape groove (33).
- 3. one kind teaching circle tool as claimed in claim 2, it is characterised in that：The depth of the lower annular groove (31) is big In back-up ring (32) thickness and the summation of sucker (36) original height.
- 4. one kind teaching circle tool as claimed in claim 1, it is characterised in that：In just outside the second sleeve (41) Square, second sleeve (41) two side is in contact with groove (11) side wall.
- 5. one kind teaching circle tool as claimed in claim 1, it is characterised in that：Top bars (1) both sides are respectively provided with One guide groove (10), regulation clamp (4) inwall are provided with the gib block (40) being engaged with guide groove (10).
- 6. one kind teaching circle tool as claimed in claim 1, it is characterised in that：The regulation clamp (4) is if be provided with Dry fastening bolt (49), fastening bolt (49) penetrates the side wall of regulation clamp (4) and top bars (1) are in close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720497027.5U CN207173121U (en) | 2017-05-05 | 2017-05-05 | A kind of teaching circle tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720497027.5U CN207173121U (en) | 2017-05-05 | 2017-05-05 | A kind of teaching circle tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207173121U true CN207173121U (en) | 2018-04-03 |
Family
ID=61733747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720497027.5U Expired - Fee Related CN207173121U (en) | 2017-05-05 | 2017-05-05 | A kind of teaching circle tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207173121U (en) |
-
2017
- 2017-05-05 CN CN201720497027.5U patent/CN207173121U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20190505 |