CN207808856U - A kind of teaching novel bow compass - Google Patents
A kind of teaching novel bow compass Download PDFInfo
- Publication number
- CN207808856U CN207808856U CN201721197399.2U CN201721197399U CN207808856U CN 207808856 U CN207808856 U CN 207808856U CN 201721197399 U CN201721197399 U CN 201721197399U CN 207808856 U CN207808856 U CN 207808856U
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- China
- Prior art keywords
- limited block
- fixed plate
- sliding slot
- adjusting rod
- slide
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Abstract
The utility model discloses a kind of teaching novel bow compass, including mobile jib, strut and adjusting rod, the bottom of mobile jib is provided with pilot pin and positioning disk, and pilot pin is overlapped with the center line of mobile jib, and positioning disk is made of transparent rubber material；First limited block and the second limited block are arranged above adjusting rod, and it is located in the both sides of sliding slot, the bottom of first limited block and the second limited block is both provided with the first spacing block set being used cooperatively with the limiting slot of sliding slot both sides, and the first spacing block set is made of rubber material.On the one hand the utility model, when in use, avoids chalk and easily snaps off；On the other hand, bowlder is being drawn, is reducing the probability of skidding, and avoiding supporting leg offset, to effectively avoid the error of picture bowlder, having simple in structure, service life is long, is hardly damaged and uses the advantageous effects such as simplicity.
Description
Technical field
The utility model is related to a kind of teaching novel bow compass.
Background technology
Compasses are for drawing round tool, being usually used in construction with ruler and compasses in mathematics and drawing.Teacher also can in teaching
Compasses dedicated for teaching is often used, chalk is fixed by compasses, to draw circle on blackboard, but compasses for teaching is deposited at present
In following defect：On the one hand, when in use, chalk is easily broken；On the other hand, bowlder is being drawn, compasses are easy to skid, and are not easy
Compasses mobile jib is positioned；In another aspect, since mobile jib and strut are using being hinged, bowlder is being drawn, supporting leg can be with application
Pressure offset, have error so as to cause the circle of drafting.
Therefore it is easily broken and paint circle there are the teaching of error to be dedicated to developing a kind of chalk that can solve by those skilled in the art
Use novel bow compass.
Utility model content
In view of the drawbacks described above of the prior art, the technical problem to be solved by the utility model is to provide one kind to solve
Certainly chalk it is easily broken and paint circle there are the teaching novel bow compass of error.
To achieve the above object, the utility model provides a kind of teaching novel bow compass, including mobile jib, strut and adjusting
The bottom of bar, mobile jib is provided with pilot pin and positioning disk, and pilot pin is located at the center line of pilot pin and mobile jib in the positioning disk
It overlaps, positioning disk is made of transparent rubber material；
Sliding slot is offered along the length direction of adjusting rod, the both sides of sliding slot are both provided with limiting slot, at least side of sliding slot
It is provided with graduation mark；One end of adjusting rod is rotatably set on mobile jib；
Strut includes slide bar, and slide bar is slidably connect with adjusting rod by sliding slot, and the top of slide bar is provided with handle, sliding
The first limited block and the second limited block are provided on bar, the first limited block and the second limited block are arranged above adjusting rod, and point
Wei Yu not be in the both sides of sliding slot, the bottom of the first limited block and the second limited block is both provided with and the limiting slot of sliding slot both sides coordinates
The first spacing block set used, the first spacing block set are made of rubber material；
The bottom of slide bar extends downwardly out sliding slot, and the bottom of slide bar is connected with the locating part that Open Side Down, and locating part is in circle
Cylindricality；The inner wall of locating part is provided with mounting plate, and the bottom of mounting plate is provided with several springs, and the lower end of each spring is provided with
The inner wall of slide plate, locating part offers at least four first limit sliding chutes, and each first limit sliding chutes are located at the lower section of mounting plate, sliding
There are four the position limiting slide blocks being used cooperatively with the first limit sliding chutes, slide plate to pass through position limiting slide block and the first limit sliding chutes for setting on plate
Cooperation can be moved along the upper and lower directions of locating part；
The bottom of slide plate is provided with the second limit sliding chutes being mutually parallel and third limit sliding chutes, and the bottom of slide plate is provided with
It is slided respectively by the second limit at the both ends of arc-shaped the first fixed plate and the second fixed plate, the first fixed plate and the second fixed plate
The basal sliding of slot and third limit sliding chutes and slide plate connects；
The top of first fixed plate and the second fixed plate is both provided at least two spring mounting seats, on each spring mounting seat
Connected by fastening spring；The outer wall of first fixed plate is provided with connect band, and one end of connect band is connect with the first fixed plate,
The other end of connect band is provided with the second spacing block set, and the outer wall of the first fixed plate is offered to be used cooperatively with the second spacing block set
Several limit holes.
Further, adjusting rod can be adjusted along the length direction of mobile jib.
Further, the both sides of sliding slot are both provided with graduation mark, and two rows of graduation marks are symmetrical arranged, and two rows of limiting slots are located at two rows
Between graduation mark and sliding slot.
Further, one end of adjusting rod is set in by ball bearing on mobile jib.
It is affectedly bashful to further facilitate, to easily facilitate to round drafting, handle shape spherical in shape.
In order to make what slide bar easily facilitated to be slided by sliding slot, further, the first limited block and the second limited block can be along cunnings
The upper and lower directions of bar is slided.
In order to further increase stability, the rounded structure of slide plate.
In order to further increase the quality for drawing circle, position limiting slide block is in decussate texture.
Further, it is opened up on each spring mounting seat there are two mounting hole, setting in the mounting hole on each spring mounting seat
There are cushion block, the both ends of fastening spring to be fixed respectively by cushion block.
In order to improve to holding capability respectively, prevent from falling respectively, further, the first fixed plate and second is fixed
The inner wall of plate is both provided with several rubber pads, and each rubber pad is located at below spring mounting seat.
The utility model has the beneficial effects that：On the one hand the utility model, when in use, avoids chalk and easily snaps off；
On the other hand, bowlder is being drawn, is reducing the probability of skidding, and avoiding supporting leg offset, to effectively avoid picture bowlder
Error, have simple in structure, service life is long, is hardly damaged and uses the advantageous effects such as simplicity.
Description of the drawings
Fig. 1 is the structural schematic diagram of one specific implementation mode of the utility model.
Fig. 2 is the overlooking structure diagram of Fig. 1.
Fig. 3 is the present invention looks up structural representation of Fig. 1 middle slide plates.
Fig. 4 is the structural schematic diagram after mounting plate and fastening spring in Fig. 3.
Fig. 5 is the structural schematic diagram that the first fixed plate and the second fixed plate pass through connection band connection in the utility model.
Fig. 6 is the structural schematic diagram that connect band is opened in Fig. 5.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples：
As shown in Figures 1 to 6, a kind of teaching novel bow compass, including mobile jib 1, strut 2 and adjusting rod 3, the bottom of mobile jib 1
Portion is provided with pilot pin 4 and positioning disk 5, and pilot pin 4 is located at pilot pin 4 in the positioning disk 5 and is overlapped with the center line of mobile jib 1,
Positioning disk 5 is made of transparent rubber material；
Sliding slot 6 is offered along the length direction of adjusting rod 3, and the both sides of sliding slot 6 are both provided with limiting slot 7, at least sliding slot 6
Side is provided with graduation mark 8；One end of adjusting rod 3 is rotatably set on mobile jib 1；
Strut 2 includes slide bar 9, and slide bar 9 is slidably connect with adjusting rod 3 by sliding slot 6, and the top of slide bar 9 is provided with
Handle 10, the first limited block 11 and the second limited block 12 are provided on slide bar 9, and the first limited block 11 and the second limited block 12 are arranged
It above adjusting rod 3, and is located in the both sides of sliding slot 6, the bottom of the first limited block 11 and the second limited block 12 is respectively provided with
There are the first spacing block set 13 that the limiting slot 7 with 6 both sides of sliding slot is used cooperatively, the first spacing block set 13 to use rubber material system
At；Since the first spacing block set 13 is made of using rubber material, so as to be deformed adjusting rod 3 by the first spacing block set 13
Sliding.In order to further be convenient for, to adjusting rod 3, making it when adjusting adjusting rod 3, the first spacing block set 13 is not to adjusting rod 3
Sliding causes to hinder, in this implementation, the first limited block 11 and the second limited block 12 are arranged to glide on adjusting rod 3
It is dynamic.
The bottom of slide bar 9 extends downwardly out sliding slot 6, and the bottom of slide bar 9 is connected with the locating part 14 that Open Side Down, limit
Part 14 is cylinder；The inner wall of locating part 14 is provided with mounting plate 15, and the bottom of mounting plate 15 is provided with several springs 16, respectively
The lower end of spring 16 is provided with slide plate 17, and the inner wall of locating part 14 offers at least four first limit sliding chutes 18, each first limit
Position sliding slot 18 is located at the lower section of mounting plate 15, the limit being used cooperatively with the first limit sliding chutes 18 there are four settings on slide plate 17
Sliding block 19, slide plate 17 can be moved by position limiting slide block 19 and the cooperation of the first limit sliding chutes 18 along the upper and lower directions of locating part 14；
The bottom of slide plate 17 is provided with the second limit sliding chutes 20 being mutually parallel and third limit sliding chutes 21, the bottom of slide plate 17
Portion is provided with arc-shaped the first fixed plate 22 and the second fixed plate 23, the both ends point of the first fixed plate 22 and the second fixed plate 23
It is not connect with the basal sliding of slide plate 17 by the second limit sliding chutes 20 and third limit sliding chutes 21；
The top of first fixed plate 22 and the second fixed plate 23 is both provided at least two spring mounting seats 24, each spring peace
It is connected by fastening spring 25 on dress seat 24；The outer wall of first fixed plate 22 is provided with connect band 26, one end of connect band 26
It is connect with the first fixed plate 22, the other end of connect band 26 is provided with the second spacing block set 27, and the outer wall of the first fixed plate 22 is opened
Equipped with several limit holes 28 being used cooperatively with the second spacing block set 27.
In the present embodiment, adjusting rod 3 can be adjusted along the length direction of mobile jib 1.The both sides of sliding slot 6 are both provided with graduation mark 8,
Two rows of graduation marks 8 are symmetrical arranged, and two rows of limiting slots 7 are located between two rows of graduation marks 8 and sliding slot 6.One end of adjusting rod 3 passes through
Ball bearing is set on mobile jib 1.
In the present embodiment, 10 shape spherical in shape of handle.First limited block 11 and the second limited block 12 can be above and below slide bars 9
It slides in direction.17 rounded structure of slide plate.Position limiting slide block 19 is in decussate texture.There are two being opened up on each spring mounting seat 24
It is provided with cushion block 29 in mounting hole 24a, the mounting hole 24a on each spring mounting seat 24, the both ends of fastening spring 25 pass through respectively
Cushion block 29 is fixed.The inner wall of first fixed plate 22 and the second fixed plate 23 is both provided with several rubber pads 30, each rubber pad 30
Positioned at 24 lower section of spring mounting seat.
It is first turned on connect band 26 (referring to Fig. 6), conveniently then pulls open the first fixed plate 22 and the second fixed plate 23,
Chalk is placed between the first fixed plate 22 and the second fixed plate 23, the first fixed plate 22 and the second fixed plate are then unclamped
23, chalk is clamped by fastening spring 25, rubber cushion 30 can further fix difference, prevent chalk from falling, by connect band
26 are fastened by the second spacing block set 27 with limit hole 28, and to further fix chalk, human hand holds handle 10, slidable adjustment
Bar 3 confirms the radius for the circle for needing picture by graduation mark 8, then by the first limited block 11 and the second limited block 12
First spacing block set 13 is fixed with limiting slot 7, to limit adjusting rod 3, positioning disk 5 is bonded with blackboard, passes through sight
It examines pilot pin 4 to be aligned mobile jib 1 with the center of circle of picture is needed, pilot pin 4 is overlapped with the center of circle at this time, and human hand holds mobile jib 1 and handle
10 carry out picture circle.Effectively chalk can be avoided to be broken by the cushion effect of fastening spring 25 and spring 16 drawing bowlder.
The preferred embodiment of the utility model described in detail above.It should be appreciated that the ordinary skill people of this field
Member according to the present utility model can conceive without creative work makes many modifications and variations.Therefore, all this technology necks
Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to the design of the utility model in domain
Available technical solution is tested, it all should be in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of teaching novel bow compass, it is characterized in that：Including mobile jib (1), strut (2) and adjusting rod (3), the mobile jib (1)
Bottom be provided with pilot pin (4) and positioning disk (5), the pilot pin (4) is located in the positioning disk (5), the pilot pin
(4) it is overlapped with the center line of the mobile jib (1), the positioning disk (5) is made of transparent rubber material；
Sliding slot (6) is offered along the length direction of the adjusting rod (3), the both sides of the sliding slot (6) are both provided with limiting slot
(7), the side of at least sliding slot (6) is provided with graduation mark (8)；One end of the adjusting rod (3) is rotatably set in institute
It states on mobile jib (1)；
The strut (2) includes slide bar (9), the slide bar (9) by the sliding slot (6) slidably with the adjusting rod (3)
Connection, the top of the slide bar (9) is provided with handle (10), the first limited block (11) and second is provided on the slide bar (9)
Limited block (12), first limited block (11) are arranged with second limited block (12) above the adjusting rod (3), and point
It Wei Yu not be respectively provided in the both sides of the sliding slot (6), the bottom of first limited block (11) and second limited block (12)
There are the first spacing block set (13) that the limiting slot (7) with the sliding slot (6) both sides is used cooperatively, first spacing block set (13)
It is made of rubber material；
The bottom of the slide bar (9) extends downwardly out the sliding slot (6), and the bottom of the slide bar (9) is connected with what Open Side Down
Locating part (14), the locating part (14) are cylinder；The inner wall of the locating part (14) is provided with mounting plate (15), the peace
The bottom of loading board (15) is provided with several springs (16), and the lower end of each spring (16) is provided with slide plate (17), the limit
The inner wall of position part (14) offers at least four first limit sliding chutes (18), and each first limit sliding chutes (18) are located at the peace
The lower section of loading board (15), there are four the limits being used cooperatively with first limit sliding chutes (18) to slide for setting on the slide plate (17)
Block (19), the slide plate (17) can be along the limits by the position limiting slide block (19) and first limit sliding chutes (18) cooperation
The upper and lower directions of part (14) moves；
The bottom of the slide plate (17) is provided with the second limit sliding chutes (20) being mutually parallel and third limit sliding chutes (21), described
The bottom of slide plate (17) is provided with arc-shaped the first fixed plate (22) and the second fixed plate (23), first fixed plate (22)
Pass through second limit sliding chutes (20) and third limit sliding chutes (21) and the cunning respectively with the both ends of the second fixed plate (23)
The basal sliding of plate (17) connects；
The top of first fixed plate (22) and the second fixed plate (23) is both provided at least two spring mounting seats (24), respectively
It is connected by fastening spring (25) on the spring mounting seat (24)；The outer wall of first fixed plate (22) is provided with connection
Band (26), one end of the connect band (26) are connect with first fixed plate (22), and the other end of the connect band (26) is set
It is equipped with the second spacing block set (27), the outer wall of first fixed plate (22) is offered to be coordinated with second spacing block set (27)
Several limit holes (28) used.
2. teaching novel bow compass as described in claim 1, it is characterized in that：The adjusting rod (3) can be along the mobile jib (1)
Length direction is adjusted.
3. teaching novel bow compass as described in claim 1, it is characterized in that：The both sides of the sliding slot (6) are both provided with scale
Line (8), the two rows graduation marks (8) are symmetrical arranged, the two rows limiting slots (7) be located at two rows of graduation marks (8) with it is described
Between sliding slot (6).
4. teaching novel bow compass as described in claim 1, it is characterized in that：One end of the adjusting rod (3) passes through ball axis
Bearing sleeve is located on the mobile jib (1).
5. teaching novel bow compass as described in claim 1, it is characterized in that：The handle (10) shape spherical in shape.
6. teaching novel bow compass as described in claim 1, it is characterized in that：First limited block (11) and described second
Limited block (12) can be slided along the upper and lower directions of the slide bar (9).
7. teaching novel bow compass as described in claim 1, it is characterized in that：The rounded structure of the slide plate (17).
8. teaching novel bow compass as described in claim 1, it is characterized in that：The position limiting slide block (19) is in decussate texture.
9. teaching novel bow compass as described in claim 1, it is characterized in that：It is offered on each spring mounting seat (24)
Two mounting holes (24a) are provided with cushion block (29), the clamping in the mounting hole (24a) on each spring mounting seat (24)
The both ends of spring (25) are fixed by cushion block (29) respectively.
10. teaching novel bow compass as described in claim 1, it is characterized in that：First fixed plate (22) and second is fixed
The inner wall of plate (23) is both provided with several rubber pads (30), and each rubber pad (30) is located under the spring mounting seat (24)
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721197399.2U CN207808856U (en) | 2017-09-18 | 2017-09-18 | A kind of teaching novel bow compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721197399.2U CN207808856U (en) | 2017-09-18 | 2017-09-18 | A kind of teaching novel bow compass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207808856U true CN207808856U (en) | 2018-09-04 |
Family
ID=63336201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721197399.2U Expired - Fee Related CN207808856U (en) | 2017-09-18 | 2017-09-18 | A kind of teaching novel bow compass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207808856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924979A (en) * | 2019-02-20 | 2019-06-25 | 陈飞 | A kind of magnetic resonance clinical patients head auxiliary fixing device and operating method |
| CN110103614A (en) * | 2019-05-15 | 2019-08-09 | 郑州铁路职业技术学院 | A kind of integrated planar design drawing tool ruler |
| CN113002221A (en) * | 2021-04-07 | 2021-06-22 | 虎思远 | Be applied to mathematics teaching of education and teaching with supplementary teaching device |
-
2017
- 2017-09-18 CN CN201721197399.2U patent/CN207808856U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109924979A (en) * | 2019-02-20 | 2019-06-25 | 陈飞 | A kind of magnetic resonance clinical patients head auxiliary fixing device and operating method |
| CN110103614A (en) * | 2019-05-15 | 2019-08-09 | 郑州铁路职业技术学院 | A kind of integrated planar design drawing tool ruler |
| CN113002221A (en) * | 2021-04-07 | 2021-06-22 | 虎思远 | Be applied to mathematics teaching of education and teaching with supplementary teaching device |
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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: 20180904 Termination date: 20210918 |