CN209719065U - A kind of higher mathematics figure drawing instrument - Google Patents
A kind of higher mathematics figure drawing instrument Download PDFInfo
- Publication number
- CN209719065U CN209719065U CN201920095271.8U CN201920095271U CN209719065U CN 209719065 U CN209719065 U CN 209719065U CN 201920095271 U CN201920095271 U CN 201920095271U CN 209719065 U CN209719065 U CN 209719065U
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- limit
- slide bar
- block
- connecting rod
- 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 higher mathematics figure drawing instruments, including supporting block, the upper center of the supporting block is fixedly connected with connecting shaft, the middle part of the connecting shaft is socketed with rotating bar by bearing, the middle part of the rotating bar is run through up and down is provided with regulating tank, the inner cavity lower part left and right ends of the regulating tank are fixedly connected with slide bar, fixation is inlaid with range item inside the top link slot of the slide bar, the outside movable sleeve of the slide bar is connected to connecting rod, the lower end of the connecting rod is fixedly connected with limit link block, the inside of the limit link block is provided with limit inserting groove, the inside of the limit inserting groove is plugged with inserting column by limited block activity.The higher mathematics figure drawing instrument, by the overall structure of equipment, so that teacher is drawing bowlder, it is very convenient；By being equipped with the structure of limit link block, limit inserting groove, inserting column and the first thread groove, so that the fixation enhanced convenience of chalk.
Description
Technical field
The utility model relates to field of Educational Technology, specially a kind of higher mathematics figure drawing instrument.
Background technique
During university's Higher Mathematics Teaching, teacher needs often to draw various circles, existing picture auxiliary on blackboard
Apparatus can only be single picture straight line, so the clear-cut free-hand circle by rule of thumb of teacher, as a result, the circle very irregular drawn, with mark
Directrix curve differs greatly, and student understands and gets up more muddled, therefore we have proposed a kind of higher mathematics figure drawing instruments.
Utility model content
The purpose of this utility model is to provide a kind of higher mathematics figure drawing instruments, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the utility model provides the following technical solutions: a kind of higher mathematics figure drawing instrument, including
The lower end middle part of supporting block, the supporting block is fixedly connected with sucker, and the upper center of the supporting block is fixedly connected with connection
The middle part of axis, the connecting shaft is socketed with rotating bar by bearing, and the middle part of the rotating bar is run through up and down is provided with regulating tank, institute
The inner cavity lower part left and right ends for stating regulating tank are fixedly connected with slide bar, the fixed amount of being inlaid with inside the top link slot of the slide bar
Journey item, the outside movable sleeve of the slide bar are connected to connecting rod, and the lower end of the connecting rod is fixedly connected with limit link block, described
The inside of limit link block is provided with limit inserting groove, and the inside of the limit inserting groove is plugged with grafting by limited block activity
Column is fixedly connected with spring between the upper end of the limited block and limit inserting groove upper end, and the is provided in the middle part of the inserting column
One thread groove, the upper center of the connecting rod are provided with the second thread groove, and the inside of second thread groove passes through screw thread grafting
There is fixed link.
Preferably, the upper surface of the range item is lower than the upper surface of slide bar, and the surface of the slide bar is smooth.
Preferably, the upper end of the connecting shaft and fixed link is fixedly connected to rotation setting stick.
Preferably, the lateral wall top of the connecting rod and the lateral wall lower part of fixed link are fixedly connected with restraining position ring block,
The rotating bar is located between two stop collars.
Preferably, it is located in same level in the middle part of the lower end surface of the limit link block and sucker.
Compared with prior art, the utility model has the beneficial effects that the higher mathematics figure drawing instrument, passes through equipment
Overall structure, so that teacher is drawing bowlder, it is very convenient and relatively accurate；By being equipped with limit link block, limit grafting
The structure of slot, inserting column and the first thread groove, so that the fixation enhanced convenience of chalk, and securely；By the knot for being equipped with slide bar
Structure not only avoids range surface and is scratched, and makes the position fixation of connecting rod more accurate.
Detailed description of the invention
Fig. 1 is the utility model main sectional view；
Fig. 2 bows for the utility model and cuts open figure.
In figure: 1 supporting block, 2 suckers, 3 connecting shafts, 4 rotating bars, 5 regulating tanks, 6 range items, 7 slide bars, 8 connecting rods, 9 limits
Position link block, 10 limit inserting grooves, 11 inserting columns, 12 first thread grooves, 13 fixed links, 14 second thread grooves.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of higher mathematics figure drawing instrument, including branch
Bracer 1, supporting block 1 are the fulcrum of graphic plotting instrument, are fixedly connected with sucker 2,2 energy of sucker in the middle part of the lower end of the supporting block 1
Enough to inhale on blackboard, to fix supporting block 1, the upper center of the supporting block 1 is fixedly connected with connecting shaft 3, connecting shaft 3
In order to connect rotating bar 4, the middle part of the connecting shaft 3 is socketed with rotating bar 4 by bearing, and rotating bar 4 is to draw round radius
Track, the middle part of the rotating bar 4 is run through up and down is provided with regulating tank 5, and regulating tank 5 is the movement rail of connecting rod 8 and fixed link 13
Mark, when unscrewing fixed link 13, the entirety for enabling to connecting rod 8 and fixed link 13 to form is under the action of manually in regulating tank
5 inside moves left and right, and the inner cavity lower part left and right ends of the regulating tank 5 are fixedly connected with slide bar 7,7 company of enabling to of slide bar
The displacement and fixation of extension bar 8 are more stable, and fixation is inlaid with range item 6, range item inside the top link slot of the slide bar 7
6 in order to determine round radius size, in the entirety that connecting rod 8 and fixed link 13 form, that is, the manual position in left end of connecting rod 8
After moving on at corresponding radius size, by rotating fixed link 13 manually, under the action of screw thread, so that connecting rod 8 and fixation
Stop collar on bar 13 clamps the upper and lower side of rotating bar 4, and stop collar is transparent material, and hardness is larger, to fix connection
The range of the position of bar 8, range item 6 is from left to right sequentially increased, and the left end size of data of range item 6 is equal to range item 6
To the distance at 3 center of connecting shaft, the upper surface of the range item 6 is lower than the upper surface of slide bar 7, the upper surface of range item 6 for left end
Upper surface lower than slide bar 7 can be avoided the surface of range item 6 and be scratched, and the surface of the slide bar 7 is smooth, the slide bar 7
Outside movable sleeve is connected to connecting rod 8, and the lower end of the connecting rod 8 is fixedly connected with limit link block 9, the limit link block 9
Inside be provided with limit inserting groove 10, the inside of the limit inserting groove 10 is plugged with inserting column 11 by limited block activity, slotting
Connecing column 11 can be in the inside upper and lower displacement of limit inserting groove 10, and internal spring provides elastic force to inserting column 11 always,
It is fixedly connected with spring between the upper end of the limited block and limit 10 upper end of inserting groove, the middle part of the inserting column 11 is provided with the
One thread groove 12, the first thread groove 12 are described in order to enable to the connection of chalk more stable by screw thread grafting chalk
The upper center of connecting rod 8 is provided with the second thread groove 14, and the inside of second thread groove 14 is plugged with fixed link by screw thread
13, the lateral wall top of the connecting rod 8 and the lateral wall lower part of fixed link 13 are fixedly connected with restraining position ring block, the rotating bar
4 are located between two stop collars, and the upper end of the connecting shaft 3 and fixed link 13 is fixedly connected to rotation setting stick.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of higher mathematics figure drawing instrument, including supporting block (1), it is characterised in that: in the middle part of the lower end of the supporting block (1)
It is fixedly connected with sucker (2), the upper center of the supporting block (1) is fixedly connected with connecting shaft (3), the connecting shaft (3)
Middle part is socketed with rotating bar (4) by bearing, and the middle part of the rotating bar (4) is run through up and down is provided with regulating tank (5), the adjusting
The inner cavity lower part left and right ends of slot (5) are fixedly connected with slide bar (7), and fixation is inlayed inside the top link slot of the slide bar (7)
Have range item (6), the outside movable sleeve of the slide bar (7) is connected to connecting rod (8), and the lower end of the connecting rod (8) is fixedly connected
Have limit link block (9), the inside of limit link block (9) is provided with limit inserting groove (10), the limit inserting groove (10)
Inside be plugged with inserting column (11) by limited block activity, between the upper end of the limited block and limit inserting groove (10) upper end
It is fixedly connected with spring, is provided with the first thread groove (12) in the middle part of the inserting column (11), the upper center of the connecting rod (8)
It is provided with the second thread groove (14), the inside of second thread groove (14) is plugged with fixed link (13) by screw thread.
2. a kind of higher mathematics figure drawing instrument according to claim 1, it is characterised in that: the range item (6) it is upper
End face is lower than the upper surface of slide bar (7), and the surface of the slide bar (7) is smooth.
3. a kind of higher mathematics figure drawing instrument according to claim 1, it is characterised in that: the connecting shaft (3) and solid
The upper end of fixed pole (13) is fixedly connected to rotation setting stick.
4. a kind of higher mathematics figure drawing instrument according to claim 1, it is characterised in that: outside the connecting rod (8)
The lateral wall lower part of side wall upper part and fixed link (13) is fixedly connected with restraining position ring block, and the rotating bar (4) is located at two limits
Between ring.
5. a kind of higher mathematics figure drawing instrument according to claim 1, it is characterised in that: the limit link block (9)
Lower end surface and sucker (2) in the middle part of be located at same level on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920095271.8U CN209719065U (en) | 2019-01-21 | 2019-01-21 | A kind of higher mathematics figure drawing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920095271.8U CN209719065U (en) | 2019-01-21 | 2019-01-21 | A kind of higher mathematics figure drawing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209719065U true CN209719065U (en) | 2019-12-03 |
Family
ID=68680438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920095271.8U Expired - Fee Related CN209719065U (en) | 2019-01-21 | 2019-01-21 | A kind of higher mathematics figure drawing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209719065U (en) |
-
2019
- 2019-01-21 CN CN201920095271.8U patent/CN209719065U/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: 20191203 Termination date: 20210121 |