CN209794990U - Goniometer for mathematical education - Google Patents
Goniometer for mathematical education Download PDFInfo
- Publication number
- CN209794990U CN209794990U CN201920113316.XU CN201920113316U CN209794990U CN 209794990 U CN209794990 U CN 209794990U CN 201920113316 U CN201920113316 U CN 201920113316U CN 209794990 U CN209794990 U CN 209794990U
- Authority
- CN
- China
- Prior art keywords
- horizontal
- measuring
- scale
- angle
- hole
- 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.)
- Active
Links
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model discloses an angle gauge for mathematical education, which comprises a horizontal measuring scale, wherein the lower part of the front side surface of the horizontal measuring scale is provided with horizontal scale marks, the upper side of the horizontal measuring scale is provided with an angle measuring disc, and the horizontal distance is measured or a straight line is drawn by the horizontal measuring scale; the angle measuring disc can be used for measuring angles; the angle measuring disc and the horizontal measuring scale are detachably connected, can be used independently or in combination, and improves the practicability and the use convenience of different drawing tools; when angle measuring dish and horizontal measurement chi are connected and use, connecting portion block can make the rear side surface of angle measuring dish and horizontal measurement chi's rear side surface set up on the coplanar in the inside of horizontal measurement chi's recess, is convenient for use the stability of drawing instrument with the laminating shape on blackboard surface when angle measuring dish and horizontal measurement chi make up the use.
Description
Technical Field
The utility model relates to a teaching instrument technical field, concrete field is a goniometer is used in mathematical education.
Background
Mathematics is applied to on many different fields, including science, engineering, medicine and economics etc., mathematics exerts the effect that can not replace, also be study and the essential basic tool of research modern science and technology, in mathematics teaching process, mathematics teacher often need carry out geometry mapping on the blackboard, including drawing the straight line, the plumb line, the circular arc and measuring angle etc. traditional teaching is with goniometer's function singleness, need use different mapping tools when drawing different figures, the inefficiency of mapping, influence teacher's teaching progress, and it is comparatively inconvenient to carry multiple mapping tool. Therefore, the goniometer for mathematical education is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a goniometer is used in mathematics teaching to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a goniometer for mathematics teaching comprises a horizontal measuring scale, wherein the lower part of the front side surface of the horizontal measuring scale is provided with horizontal scale marks, the upper side of the horizontal measuring scale is provided with an angle measuring disc, the outer edge of the front side surface of the angle measuring disc is provided with angle scale marks, the upper end of the middle part of the horizontal measuring scale is provided with a first through hole, the angle measuring disc comprises a measuring part and a connecting part, the measuring part is semicircular, the connecting part is rectangular, the upper end of the connecting part is connected with the rear part of the lower end of the measuring part, the connecting part and the measuring part are integrally formed, the middle part of the rear side surface of the horizontal measuring scale is provided with a groove matched with the connecting part, the connecting part is arranged inside the groove, and the rear side surface of the angle measuring disc and the rear side surface of the horizontal measuring scale are arranged on the same plane, and the front side surface of the angle measuring disc and the front side surface of the level gauge are arranged on the same plane, a second through hole is arranged on the connecting part corresponding to the first through hole, a nut coaxial with the second through hole is arranged at the rear end of the middle part of the connecting part, a screw is arranged in the first through hole, a thread part is arranged at the left end of the screw, the left end of the screw is in threaded connection with the nut through the thread part, a rotating connecting rod is arranged at the front side of the angle measuring disc, a rotating connecting part is arranged at the lower part of the rotating connecting rod, a third through hole with the same diameter as the first through hole is arranged in the middle of the rotary connecting part, the rotary connecting rod is rotatably connected with the screw through the third through hole of the rotary connecting part, the chalk box is characterized in that a fixing sleeve is arranged at the upper part of the rotating connecting rod, and chalk is arranged in the middle of the fixing sleeve.
Preferably, a semicircular hollow-out part is arranged in the middle of the measuring part.
Preferably, the middle part of the front side surface of the horizontal measuring scale is fixedly provided with a handle ring.
Preferably, an anti-slip layer is fixedly arranged on the rear side surface of the horizontal measuring scale.
Preferably, the anti-slip layer is made of a rubber material.
Compared with the prior art, the beneficial effects of the utility model are that: a kind of mathematics teaching uses the angular instrument, measure the horizontal distance or draw the straight line to use through the horizontal measuring rule; the angle measuring disc can be used for measuring angles; the angle measuring disc and the horizontal measuring scale are detachably connected, can be used independently or in combination, and improves the practicability and the use convenience of different drawing tools; when angle measuring dish and horizontal measurement chi are connected and use, connecting portion block can make the rear side surface of angle measuring dish and horizontal measurement chi's rear side surface set up on the coplanar in the inside of horizontal measurement chi's recess, is convenient for use the stability of drawing instrument with the laminating shape on blackboard surface when angle measuring dish and horizontal measurement chi make up the use. Through setting up the rotation connecting rod, the rotation connecting rod can rotate around the screw, and the teacher can carry out the operation of drawing a circle through the cooperation of chalk and rotation connecting rod.
Drawings
Fig. 1 is a schematic view of a front view structure of an angle gauge for mathematical education of the present invention;
FIG. 2 is a schematic view of a left-side view cross-section structure of the angle gauge for mathematical education of the present invention;
Fig. 3 is a schematic diagram of a partially enlarged structure of a portion a in fig. 2 of the angle gauge for mathematical education of the present invention.
In the figure: the measuring device comprises a 1-horizontal measuring scale, a 2-horizontal scale mark, a 3-angle measuring disc, a 301-measuring part, a 302-connecting part, a 4-angle scale mark, a 5-first through hole, a 6-groove, a 7-second through hole, a 8-nut, a 9-screw, a 10-threaded part, a 11-rotating connecting rod, a 12-third through hole, a 13-fixing sleeve, a 14-chalk, a 15-semicircular hollow part and a 16-bracelet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a goniometer for mathematics teaching comprises a horizontal measuring scale 1, which can be used for measuring horizontal distance or drawing straight line by the horizontal measuring scale, the lower part of the front side surface of the horizontal measuring scale is provided with a horizontal scale mark 2, the upper side of the horizontal measuring scale is provided with an angle measuring disc 3, which can be used for measuring angle by the angle measuring disc, the angle measuring disc and the horizontal measuring scale can be detachably connected, can be used separately or combined, and improves the practicability and the convenience of use of different drawing tools, the outer edge of the front side surface of the angle measuring disc is provided with an angle scale mark 4, the upper end of the middle part of the horizontal measuring scale is provided with a first through hole 5, the angle measuring disc comprises a measuring part 301 and a connecting part 302, the measuring part is semicircular, the connecting part is rectangular, and the upper end of the connecting part is connected with the rear part of the lower end of the measuring part, the connecting part and the measuring part are integrally formed, the middle part of the rear side surface of the horizontal measuring scale is provided with a groove 6 matched with the connecting part, the connecting part is arranged in the groove, the angle measuring disc is connected with the groove of the horizontal measuring scale through the connecting part, the rear side surface of the angle measuring disc and the rear side surface of the horizontal measuring scale are arranged on the same plane, so that the angle measuring disc and the horizontal measuring scale are convenient to be attached to the surface of a blackboard when in combined use, the stability of a drawing tool is improved, the front side surface of the angle measuring disc and the front side surface of the horizontal measuring scale are arranged on the same plane, the connecting part is provided with a second through hole 7 at a position corresponding to the first through hole, the rear end of the middle part of the connecting part is provided with a nut 8 coaxial with the second through hole, and the first through hole is internally provided with a screw 9, the left end of screw is provided with screw thread portion 10, the left end of screw pass through screw thread portion with nut threaded connection, the installation and dismantlement of being convenient for, the front side of angle measuring dish is provided with rotation connecting rod 11, the lower part of rotating the connecting rod is provided with rotates connecting portion, the middle part of rotating connecting portion be provided with the third through-hole 12 that first through-hole diameter equals, rotate the connecting rod and pass through rotate connecting portion the third through-hole with the screw rotates to be connected, the upper portion of rotating the connecting rod is provided with fixed sleeve 13, and fixed sleeve is used for fixed chalk, fixed sleeve's middle part is provided with chalk 14, rotates the connecting rod through setting up and rotates the connecting rod, and the teacher can carry out the operation of drawing a circle through the cooperation of chalk with the rotation connecting rod.
Specifically, the middle part of the measuring part is provided with a semicircular hollow part 15, and the semicircular hollow part is arranged on the measuring part, so that the weight of the angle measuring disc can be reduced, and the burden of teachers during drawing and carrying is reduced.
Particularly, the fixed handlebar hand ring 16 that is provided with in middle part of horizontal measurement ruler's front side surface can be convenient for the teacher to hand horizontal measurement ruler through setting up the handlebar hand ring.
Specifically, an anti-slip layer is fixedly arranged on the rear side surface of the horizontal measuring scale, and the anti-slip layer can increase the friction force between the horizontal measuring scale and the surface of the blackboard and prevent a teacher from slipping when drawing is performed through a drawing tool to influence the accuracy of drawing.
Specifically, the anti-slip layer is made of a rubber material.
The working principle is as follows: the utility model provides an angle gauge for mathematical education, which can measure horizontal distance or draw straight line by a horizontal measuring scale when in use; the angle measuring disc can be used for measuring angles; the angle measuring disc and the horizontal measuring scale are detachably connected, can be used independently or in combination, and improves the practicability and the use convenience of different drawing tools; when the angle measuring disc is connected with the horizontal measuring scale for use, the angle measuring disc is connected with the groove of the horizontal measuring scale through the connecting part, the left end of the screw is connected with the nut through the thread part, and the angle measuring disc is convenient to mount and dismount. Connecting portion block is in the inside of horizontal measurement ruler's recess, can make the rear side surface of angle measurement dish and horizontal measurement ruler's rear side surface set up on the coplanar, be convenient for when angle measurement dish and horizontal measurement ruler make up the use with the laminating shape on blackboard surface, improve the stability of using the mapping instrument. Through setting up the rotation connecting rod, the rotation connecting rod can rotate around the screw, and the teacher can carry out the operation of drawing a circle through the cooperation of chalk and rotation connecting rod. And the anti-slip layer is arranged on the rear side surface of the horizontal measuring scale, so that the friction force between the horizontal measuring scale and the surface of the blackboard can be increased, and the situation that a teacher slips when drawing is performed through a drawing tool to influence the accuracy of drawing is prevented.
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a goniometer for mathematical education, includes level gauge (1), its characterized in that: the lower part of the front side surface of the horizontal measuring scale (1) is provided with horizontal scale marks (2), the upper side of the horizontal measuring scale (1) is provided with an angle measuring disc (3), the outer edge of the front side surface of the angle measuring disc (3) is provided with angle scale marks (4), the upper end of the middle part of the horizontal measuring scale (1) is provided with a first through hole (5), the angle measuring disc (3) comprises a measuring part (301) and a connecting part (302), the measuring part (301) is semicircular, the connecting part (302) is rectangular, the upper end of the connecting part (302) is connected with the rear part of the lower end of the measuring part (301), the connecting part (302) and the measuring part (301) are integrally formed, the middle part of the rear side surface of the horizontal measuring scale (1) is provided with a groove (6) matched with the connecting part (302), the connecting part (302) is arranged inside the groove (6), the rear side surface of the angle measuring disc (3) and the rear side surface of the horizontal measuring scale (1) are arranged on the same plane, the front side surface of the angle measuring disc (3) and the front side surface of the horizontal measuring scale (1) are arranged on the same plane, a second through hole (7) is arranged on the connecting part (302) corresponding to the first through hole (5), a nut (8) coaxial with the second through hole (7) is arranged at the rear end of the middle part of the connecting part (302), a screw (9) is arranged inside the first through hole (5), a threaded part (10) is arranged at the left end of the screw (9), the left end of the screw (9) is in threaded connection with the nut (8) through the threaded part (10), and a rotating connecting rod (11) is arranged at the front side of the angle measuring disc (3), the lower part of the rotating connecting rod (11) is provided with a rotating connecting part, the middle part of the rotating connecting part is provided with a third through hole (12) with the diameter equal to that of the first through hole (5), the rotating connecting rod (11) passes through the third through hole (12) of the rotating connecting part and is rotatably connected with the screw (9), the upper part of the rotating connecting rod (11) is provided with a fixing sleeve (13), and the middle part of the fixing sleeve (13) is provided with chalk (14).
2. The angular instrument for mathematical education as set forth in claim 1, wherein: the middle part of the measuring part (301) is provided with a semicircular hollow part (15).
3. The angular instrument for mathematical education as set forth in claim 1, wherein: the middle part of the front side surface of the horizontal measuring scale (1) is fixedly provided with a handle ring (16).
4. The angular instrument for mathematical education as set forth in claim 1, wherein: and an anti-skid layer is fixedly arranged on the rear side surface of the horizontal measuring scale (1).
5. the angular instrument for mathematical education as set forth in claim 4, wherein: the anti-slip layer is made of rubber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920113316.XU CN209794990U (en) | 2019-01-23 | 2019-01-23 | Goniometer for mathematical education |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920113316.XU CN209794990U (en) | 2019-01-23 | 2019-01-23 | Goniometer for mathematical education |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209794990U true CN209794990U (en) | 2019-12-17 |
Family
ID=68820764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920113316.XU Active CN209794990U (en) | 2019-01-23 | 2019-01-23 | Goniometer for mathematical education |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209794990U (en) |
-
2019
- 2019-01-23 CN CN201920113316.XU patent/CN209794990U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209869864U (en) | Multifunctional mathematic ruler for math teaching | |
| CN209794990U (en) | Goniometer for mathematical education | |
| CN204414928U (en) | A kind of Multifunctional math teaching aid | |
| CN208937039U (en) | A kind of telescopic bracket measuring degree of gravity vertical forwall surface and flatness | |
| CN210652449U (en) | Multifunctional drawing ruler for students | |
| CN207156784U (en) | A kind of mathematical education plotting unit | |
| CN211441737U (en) | Teaching ruler for high school mathematics teaching | |
| US20180306566A1 (en) | Centerline and angle finder layout tool for cylindrical and radial surfaces | |
| CN213515392U (en) | Building material length detection device | |
| CN211234424U (en) | Special measuring device of engineering cost | |
| CN211641614U (en) | Multipurpose drawing tool for mathematics | |
| CN209794998U (en) | Mathematical drawing tool | |
| CN211918210U (en) | Mathematics teaching aid | |
| CN211918205U (en) | Multifunctional ruler for building design measurement | |
| CN218577368U (en) | Multifunctional set square | |
| CN214405340U (en) | Novel compound multi-functional plotting tool | |
| CN215751633U (en) | Tool for economic management drawing | |
| CN209888489U (en) | Multifunctional compasses | |
| CN210680214U (en) | Mathematics teaching aid body angle drawing compasses | |
| CN219044239U (en) | Drawing dipperstick that engineering was used | |
| CN221292739U (en) | Mathematics teaching compasses | |
| CN210759958U (en) | Portable multi-functional mathematics mapping utensil | |
| CN220562443U (en) | Multipurpose ruler for mathematics | |
| CN217132044U (en) | Cross section size measuring device | |
| CN217669369U (en) | Seal head marking assisting device compatible with seal heads with different diameters |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |