CN213920454U - Portable mathematical education drawing device - Google Patents
Portable mathematical education drawing device Download PDFInfo
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- CN213920454U CN213920454U CN202022651915.2U CN202022651915U CN213920454U CN 213920454 U CN213920454 U CN 213920454U CN 202022651915 U CN202022651915 U CN 202022651915U CN 213920454 U CN213920454 U CN 213920454U
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- hole
- vertical plate
- circular ring
- cross rod
- sliding sleeve
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- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model provides a handy mathematical education drawing device, which comprises a vertical plate, first through-hole is seted up at the riser middle part, the ring is connected to first through-hole side, the ring leading flank evenly sets up angle scale mark along the circumferencial direction, the ring medial surface has annular spout, sliding connection slider in the annular spout, install the horizontal pole between the slider, the horizontal pole side evenly sets up length scale mark, rectangular shape through-hole is seted up to the horizontal pole leading flank, connect the sliding sleeve on the horizontal pole, the sliding sleeve position can be locked, the third through-hole is seted up to the sliding sleeve leading flank, there is the locking structure riser right flank, the locking structure can be with the ring locking in first through-hole, there is fixing device riser trailing flank, fixing device can fix riser and blackboard. The utility model discloses simple structure, the user not only can relax draw the circle of different diameters, the triangle-shaped of different angles and measurement angle's size on the blackboard, moreover in the drawing process device can remain stable all the time, device compact structure, and the person of facilitating the use carries.
Description
Technical Field
The utility model belongs to the drawing device field, specifically speaking are a handy mathematical education drawing device.
Background
In the mathematics teaching process, the teacher often will draw various figures on the blackboard, in order to make things convenient for teaching and student to understand, the teacher often will use various supplementary drawing device when drawing, current mathematics teaching slides easily with supplementary drawing device when drawing on the blackboard, lead to the circular nonstandard of drawing, repeated modification influences drawing efficiency, and current device is difficult to realize drawing arbitrary diameter's circle simultaneously, the triangle-shaped of different angles and to the more accurate measurement of arbitrary angle realization, and the device carries inconveniently, consequently, need design a handy mathematical teaching drawing device and solve current problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a handy mathematical education drawing device for solve the defect among the prior art.
The utility model discloses a following technical scheme realizes:
the utility model provides a handy mathematical education drawing device, which comprises a vertical plate, first through-hole is seted up at the riser middle part, first through-hole side rotates connects the ring, the ring leading flank evenly sets up the angle scale mark along the circumferencial direction, annular spout is seted up to the ring medial surface, two sliders of sliding connection in the annular spout, fixed mounting horizontal pole between two sliders, the diameter direction coincidence of horizontal pole and ring, the horizontal pole side evenly sets up the length scale mark, rectangular shape through-hole is seted up to the horizontal pole leading flank, sliding connection sliding sleeve on the horizontal pole, the sliding sleeve position can be locked, the third through-hole is seted up to the sliding sleeve leading flank, third through-hole and rectangular shape through-hole intercommunication, riser right flank installation locking structure, the locking structure can be with the ring locking in first through-hole, riser trailing flank installation fixing device, fixing device can fix riser and blackboard.
As above portable mathematical education drawing device, the locking structure include the screw rod, the riser left surface set up the fourth through-hole, set up the screw thread in the fourth through-hole, the threaded connection screw rod in the fourth through-hole, screw rod inner and ring side contact cooperation, screw rod outer end fixed mounting handle.
The portable mathematical education drawing device comprises a vertical plate, a back side surface and a rectangular array, wherein the vertical plate is fixedly embedded with four magnets.
According to the portable mathematical teaching drawing device, the side faces, close to the cross rod, of the sliding blocks are fixedly provided with the pointers, the outer end connecting line of the two pointers is coplanar and perpendicular to the axis of the circular ring, and the outer ends of the pointers can be matched with the scale marks on the front side face of the circular ring.
According to the portable mathematical education drawing device, the pull rod is fixedly installed on the top surface of the vertical plate.
The utility model has the advantages that: when the device works, a user fixes the vertical plate on the blackboard through the fixing device, when the user needs to draw circles with different diameters, the circular ring and the vertical plate are locked and fixed through the locking structure, then the sliding sleeve is slid on the cross rod, the scale mark reading on the cross rod corresponding to the side surface of the sliding sleeve close to the middle part of the circular ring is the radius of the circle to be drawn, then the sliding sleeve is locked on the cross rod by itself, chalk is inserted into the third through hole, the lower end of the chalk penetrates through the third through hole and the strip-shaped through hole to be contacted with the blackboard, the cross rod rotates along with the sliding of the sliding block in the annular sliding groove, after the cross rod rotates for a circle, the chalk draws the needed circle on the blackboard, when the user needs to draw triangles with different angles, the circular ring and the vertical plate are locked and fixed through the locking structure, then the chalk is inserted into the third through hole, the lower end of the chalk penetrates through the third through hole and the strip-shaped through hole to be contacted with the blackboard, sliding the sliding sleeve to make the chalk draw a first line along the through hole, rotating the cross bar to make the included angle between the cross bar and the first line be one angle of triangle, sliding the sliding sleeve to make the chalk draw a second line along the through hole, the first line and the second line being coincident, moving the vertical plate to fix again to make the ring axis coincident with the other end of the first line, rotating the cross bar to make the included angle between the cross bar and the first line be the required included angle, sliding the sliding sleeve to draw a third line, the triangle formed by the three lines being the triangle to be drawn, when the user needs to measure the existing angle, fixing the vertical plate on the blackboard to make the ring axis coincident with the apex angle of the angle to be measured, then loosening the locking structure, rotating the ring to make the zero scale line of the ring coincide with one side of the angle, and screwing the locking structure, rotating the cross rod to enable the cross rod to coincide with the other edge of the angle, wherein the degree indicated by the end part of the cross rod is the size of the angle to be measured; the utility model discloses simple structure, easy operation and function are many, and the user not only can be relaxed draw the circle of different diameters, the triangle-shaped of different angles and measurement angle's size on the blackboard, can remain stable throughout at the in-process device of drawing moreover, avoid the slip influence drawing effect of device, device compact structure, the person of facilitating the use carries.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of the present invention; fig. 2 is an enlarged view of the view from the direction a of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
A portable mathematical education drawing device comprises a vertical plate 1, wherein a first through hole 2 is formed in the middle of the vertical plate 1, the side surface of the first through hole 2 is rotatably connected with a circular ring 3, angle scale marks are uniformly arranged on the front side surface of the circular ring 3 along the circumferential direction, an annular chute 4 is formed in the inner side surface of the circular ring 3, two sliders 5 are slidably connected in the annular chute 4, a cross rod 6 is fixedly arranged between the two sliders 5, the cross rod 6 is superposed with the diameter direction of the circular ring 3, length scale marks are uniformly arranged on the side surface of the cross rod 6, a long strip-shaped through hole 7 is formed in the front side surface of the cross rod 6, a sliding sleeve 8 is slidably connected on the cross rod 6, the position of the sliding sleeve 8 can be locked, a third through hole 9 is formed in the front side surface of the sliding sleeve 8, the third through hole 9 is communicated with the long strip-shaped through hole 7, a locking structure is arranged on the right side surface of the vertical plate 1, the locking structure can lock the circular ring 3 in the first through hole 2, and a fixing device is arranged on the rear side surface of the vertical plate 1, the vertical plate 1 and the blackboard can be fixed by the fixing device. When the device works, a user fixes the vertical plate 1 on the blackboard through the fixing device, when the user needs to draw circles with different diameters, the circular ring 3 and the vertical plate 1 are locked and fixed through the locking structure, then the sliding sleeve 8 is positioned on the cross rod 6 through the sliding, the scale mark reading on the cross rod 6 corresponding to the side surface of the sliding sleeve 8 close to the middle part of the circular ring 3 is the radius of the circle to be drawn, then the sliding sleeve 8 is enabled to be locked on the cross rod 6 by itself, chalk is inserted into the third through hole 9, the lower end of the chalk is contacted with the blackboard through the third through hole 9 and the strip-shaped through hole 7, the cross rod 6 is enabled to rotate along with the sliding of the sliding block 5 on the annular sliding groove 4, after the cross rod 6 rotates for one circle, the chalk draws the needed circle on the blackboard, when the user needs to draw triangles with different angles, the circular ring 3 and the vertical plate 1 are locked and fixed through the locking structure, then, inserting chalk into a third through hole 9, enabling the lower end of the chalk to pass through the third through hole 9 and the elongated through hole 7 to be in contact with a blackboard, sliding the sliding sleeve 8 to enable the chalk to draw a first line segment along the elongated through hole 7, then rotating the cross rod 6 to enable the included angle between the cross rod 6 and the first line segment to be a triangle angle, then sliding the sliding sleeve 8 to enable the chalk to draw a second line segment along the elongated through hole 7, enabling the first line segment to be overlapped with the end point of the second line segment, moving the vertical plate 1 to fix again to enable the axis of the ring 3 to be overlapped with the other end of the first line segment, then rotating the cross rod 6 to enable the included angle between the cross rod 6 and the first line segment to be a required included angle, then sliding the sliding sleeve 8 to draw a third line segment, enabling the triangle formed by the three line segments to be a triangle to be drawn, when a user needs to measure the existing angle, firstly fixing the vertical plate 1 on the blackboard to enable the axis of the ring 3 to be overlapped with the apex angle to be measured, then the locking structure is unscrewed, the ring 3 is rotated to enable the zero scale mark of the ring 3 to coincide with one edge of the angle, then the locking structure is screwed, the cross rod 6 is rotated to enable the cross rod 6 to coincide with the other edge of the angle, and the degree indicated by the end part of the cross rod 6 is the size of the angle to be measured; the utility model discloses simple structure, easy operation and function are many, and the user not only can be relaxed draw the circle of different diameters, the triangle-shaped of different angles and measurement angle's size on the blackboard, can remain stable throughout at the in-process device of drawing moreover, avoid the slip influence drawing effect of device, device compact structure, the person of facilitating the use carries.
Specifically, as shown in the figure, the locking structure described in this embodiment includes screw rod 10, and fourth through-hole 11 is seted up to riser 1 left surface, sets up the screw thread in the fourth through-hole 11, and the threaded connection screw rod 10 in the fourth through-hole 11, screw rod 10 inner and the cooperation of the side contact of ring 3, screw rod 10 outer end fixed mounting handle 12. This design is guaranteed when the use device is drawn or is measured, and accessible rotates 12 unscrews screw rod 10 of handle, makes the terminal surface keep away from ring 3 in the screw rod 10, carries out mathematics drawing or measured alignment through rotating ring 3, then screws screw rod 10 through reverse rotation handle 12, makes the terminal surface hug closely ring 3 side in the screw rod 10, ensures that ring 3 and riser 1 can not take place relative rotation by oneself, reduces device drawing or measuring error.
Specifically, as shown in the figure, the fixing device of the present embodiment includes four magnets 13 fixedly embedded in a rectangular array on the rear side of the vertical plate 1. This design guarantees that the user can convenient and fast pass through magnet 13 with riser 1 and adsorb the optional position on can with the absorbent blackboard of magnetic material cooperation, ensures the expansion mathematical education work that the user can be better.
Further, as shown in the figure, the side surfaces of the sliding blocks 5 close to the cross rod 6 are fixedly provided with the pointers 14, the connecting line of the outer ends of the two pointers 14 is coplanar and perpendicular to the axis of the circular ring 3, and the outer ends of the pointers 14 can be matched with the scale marks on the front side surface of the circular ring 3. This design guarantees when the device needs carry out angle measurement, rotates along with corresponding slider 5 through control horizontal pole 6, and pointer 14 rotates along with corresponding slider 5, makes the scale mark on pointer 14 and the 3 lateral surfaces of ring align, and the size of measuring the angle that can be convenient accurate reduces measuring error.
Furthermore, as shown in the figure, the tie rods 15 are fixedly installed on the top surfaces of the vertical plates 1 in the embodiment. This design guarantees that the user not only can take off fast through pulling pull rod 15 will fix the device on the blackboard, can transport carrying device through portable pull rod 15 moreover.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (5)
1. The utility model provides a portable mathematical education drawing device which characterized in that: comprises a vertical plate (1), a first through hole (2) is arranged in the middle of the vertical plate (1), the side surface of the first through hole (2) is rotatably connected with a circular ring (3), angle scale marks are uniformly arranged on the front side surface of the circular ring (3) along the circumferential direction, an annular chute (4) is arranged on the inner side surface of the circular ring (3), two sliding blocks (5) are slidably connected in the annular chute (4), a cross rod (6) is fixedly arranged between the two sliding blocks (5), the cross rod (6) is superposed with the diameter direction of the circular ring (3), length scale marks are uniformly arranged on the side surface of the cross rod (6), a long strip-shaped through hole (7) is arranged on the front side surface of the cross rod (6), a sliding sleeve (8) is slidably connected on the cross rod (6), the position of the sliding sleeve (8) can be locked, a third through hole (9) is arranged on the front side surface of the sliding sleeve (8), the third through hole (9) is communicated with the long strip-shaped through hole (7), a locking structure is arranged on the right side surface of the vertical plate (1), the locking structure can lock the circular ring (3) in the first through hole (2), and the vertical plate (1) is provided with a fixing device on the rear side surface, and the vertical plate (1) and the blackboard can be fixed by the fixing device.
2. A portable mathematical education drafting apparatus as claimed in claim 1, wherein: the locking structure comprises a screw rod (10), a fourth through hole (11) is formed in the left side face of the vertical plate (1), a thread is formed in the fourth through hole (11), the fourth through hole (11) is connected with the screw rod (10) in a threaded manner, the inner end of the screw rod (10) is in contact fit with the side face of the circular ring (3), and a handle (12) is fixedly installed at the outer end of the screw rod (10).
3. A portable mathematical education drafting apparatus as claimed in claim 1, wherein: the fixing device comprises a vertical plate (1) and four magnets (13) fixedly embedded in a rectangular array on the rear side surface of the vertical plate.
4. A portable mathematical education drafting apparatus as claimed in claim 1, wherein: the side of the sliding block (5) close to the cross rod (6) is fixedly provided with pointers (14), the outer end connecting line of the two pointers (14) is coplanar and vertical to the axis of the circular ring (3), and the outer ends of the pointers (14) can be matched with the scale marks on the front side surface of the circular ring (3).
5. A portable mathematical education drafting apparatus as claimed in claim 1, wherein: and a pull rod (15) is fixedly arranged on the top surface of the vertical plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022651915.2U CN213920454U (en) | 2020-11-17 | 2020-11-17 | Portable mathematical education drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022651915.2U CN213920454U (en) | 2020-11-17 | 2020-11-17 | Portable mathematical education drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213920454U true CN213920454U (en) | 2021-08-10 |
Family
ID=77170427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022651915.2U Expired - Fee Related CN213920454U (en) | 2020-11-17 | 2020-11-17 | Portable mathematical education drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213920454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347701A (en) * | 2022-03-03 | 2022-04-15 | 大连工业大学 | Product design drawing ruler with high practicability |
-
2020
- 2020-11-17 CN CN202022651915.2U patent/CN213920454U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114347701A (en) * | 2022-03-03 | 2022-04-15 | 大连工业大学 | Product design drawing ruler with high practicability |
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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: 20210810 |