CN206249708U - A kind of trigonometric function instrument for measuring and calculating of teaching - Google Patents
A kind of trigonometric function instrument for measuring and calculating of teaching Download PDFInfo
- Publication number
- CN206249708U CN206249708U CN201621328435.XU CN201621328435U CN206249708U CN 206249708 U CN206249708 U CN 206249708U CN 201621328435 U CN201621328435 U CN 201621328435U CN 206249708 U CN206249708 U CN 206249708U
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- CN
- China
- Prior art keywords
- connecting rod
- rod
- trigonometric function
- measuring
- head rod
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Abstract
The utility model discloses a kind of trigonometric function instrument for measuring and calculating of teaching, including head rod, second connecting rod, 3rd connecting rod and fixed mount, the other end of the 3rd connecting rod is fixed with handle, the other end of second connecting rod is connected by rotating shaft with the top of head rod, the head rod, second connecting rod, 3rd connecting rod is all two-part, and the cooperation by spool and tape measure is connected with each other, the side of the spool is provided with rocking bar, the head rod and the 3rd connecting rod, 3rd connecting rod and the second connecting rod, second connecting rod is all provided with graphometer with the inner side of head rod hinged place.The utility model carries out ocular demonstration using the analogies of pictorial diagram to the Changing Pattern of trigonometric function, and quality of instruction is significantly increased by this kind of design, makes it easier to memory.
Description
Technical field
The utility model is related to trigonometric function instrument for measuring and calculating technical field, the trigonometric function measuring and calculating of specially a kind of teaching
Instrument.
Background technology
Trigonometric function is the Certain function summary for surmounting function belonged in elementary function in mathematics.Their essence is random angle
Set and a variable for the set of ratio between mapping.Common trigonometric function is defined in plane right-angle coordinate
, its domain of definition is whole real number field.Another kind definition is in right angled triangle, but not fully.Modern mathematics is them
It is described as the limit of indefinite array and the solution of the differential equation, is defined and expand to plural system, due to the periodicity of trigonometric function,
It does not simultaneously have the inverse function in monotropic function meaning.Trigonometric function has more important application in plural number.In physics,
Trigonometric function is also conventional instrument.
The appearance of trigonometric function instrument for measuring and calculating greatly facilitates trigonometric function measuring and calculating, but the trigonometric function of current stage is calculated
, there is many weak points in instrument, for example, cannot intuitively be represented to teaching process, teaching interest is low, and quality of instruction is owed
It is good.
Utility model content
The purpose of this utility model is the trigonometric function instrument for measuring and calculating for providing a kind of teaching, to solve above-mentioned background technology
Middle proposition cannot intuitively be represented to teaching process, and teaching interest is low, the problem that quality of instruction is not good enough.
To achieve the above object, the utility model provides following technical scheme：A kind of trigonometric function instrument for measuring and calculating of teaching,
Including head rod, the second connecting rod, the 3rd connecting rod and fixed mount, roller bearing is installed above the fixed mount, it is described
Head rod is installed above roller bearing, and the bottom of head rod is provided with the draw-in groove cooperated with roller bearing, the rolling
The bottom of axle is connected by rotating shaft with one end of the 3rd connecting rod, is provided with below the other end of the 3rd connecting rod universal
From lockwheel, the other end of the 3rd connecting rod is fixed with handle, and the 3rd connecting rod is near handle by rotating shaft and the
One end of two connecting rods is hinged, and the other end of second connecting rod is connected by rotating shaft with the top of head rod, described
Head rod, the second connecting rod, the 3rd connecting rod are all two-part, and the cooperation interconnection for passing through spool and tape measure, institute
The side for stating spool is provided with rocking bar, the head rod and the 3rd connecting rod, the 3rd connecting rod and the second connecting rod, second
Connecting rod is all provided with graphometer with the inner side of head rod hinged place.
Preferably, the 3rd connecting rod is parallel to each other with fixed mount.
Preferably, the head rod, the second connecting rod and the 3rd connecting rod are end to end by rotating shaft.
Preferably, between two corresponding connecting rods there is gap in the graphometer when mounted.
Compared with prior art, the beneficial effects of the utility model are：A kind of trigonometric function instrument for measuring and calculating of teaching is
Ocular demonstration is carried out to the Changing Pattern of trigonometric function using the analogies of pictorial diagram, teaching is significantly increased by this kind of design
Quality, makes it easier to memory, and by simulation teaching aid the classmates can be made take action on one's own operation, Teaching Atmosphere is reached most
It is good, the interest of classmates is improve, so as to improve quality of instruction, this device is structure as a whole, easy to operate, and conveniently takes
Band.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation inside the 3rd connecting rod of the present utility model.
In figure：1- rotating shafts；2- head rods；3- tape measures；4- rocking bars；5- graphometers；6- draw-in grooves；7- roller bearings；8- second
Connecting rod；The connecting rods of 9- the 3rd；10- Universal self-locking wheels；11- handles；12- fixed mounts；13- spools.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-2, a kind of embodiment that the utility model is provided：A kind of trigonometric function instrument for measuring and calculating of teaching, bag
Head rod 2, the second connecting rod 8, the 3rd connecting rod 9 and fixed mount 12 are included, the top of fixed mount 12 is provided with roller bearing 7, rolled
The top of axle 7 is provided with head rod 2, and the bottom of head rod 2 is provided with the draw-in groove 6 cooperated with roller bearing 7, draw-in groove
6 with the connection of roller bearing 7, can rotate head rod 2, one end that the bottom of roller bearing 7 passes through the connecting rod 9 of rotating shaft 1 and the 3rd
Connection, is provided with Universal self-locking wheel 10 below the other end of the 3rd connecting rod 9, Universal self-locking wheel 10 is used for controlling the 3rd connection
The device that bar 9 is moved with the keeping parallelism of fixed mount 12, the other end of the 3rd connecting rod 9 is fixed with handle 11, and the 3rd connecting rod 9 is leaned on
Nearly handle 11 is hinged by rotating shaft 1 with one end of the second connecting rod 8, and the other end of the second connecting rod 8 is by rotating shaft 1 and first
The top connection of connecting rod 2, head rod 2, the second connecting rod 8, the 3rd connecting rod 9 are all two-part, and by spool 13
Cooperation with tape measure 3 is connected with each other, and spool 13 is used for fixing tape measure 3, and tape measure 3 is used for measuring head rod 2, the second connecting rod
8 and the 3rd connecting rod 9 variation length, the side of spool 13 is provided with rocking bar 4, and rocking bar 4 is used for controlling spool 13 to rotate so that
Tape measure 3 is withdrawn, head rod 2 and the 3rd connecting rod 9, the 3rd connecting rod 9 and the second connecting rod 8, the second connecting rod 8 and
The inner side of the hinged place of one connecting rod 2 is all provided with graphometer 5, and graphometer 5 is used for measuring angle value, the 3rd connecting rod 9 and fixation
Frame 12 is parallel to each other, and head rod 2, the second connecting rod 8 and the 3rd connecting rod 9 are end to end by rotating shaft 1, and graphometer 5 exists
There is gap and two corresponding connecting rods between during installation.
Specifically used mode：When in use, two connecting rods for being combined into measured angle need to keep one of them to the equipment
Length is fixed, if the function of the angle between the second connecting rod 8 of measurement and the 3rd connecting rod 9, keeps the length of the 3rd connecting rod 9
It is constant, by pulling the 3rd connecting rod 9 and head rod 2, angle is changed, pulling the 3rd connecting rod 9 and first
While connecting rod 2, in order to meet Vector triangle, then need to control the scrolling on spool 13 of tape measure 3, so as to change the 3rd company
The length of extension bar 9 and head rod 2, the length according to tape measure 3 adds the natural length of connecting rod, so as to obtain corresponding length
Value, is measured, read-record, according to the 3rd connecting rod 9 and head rod by the angle after 5 pairs of changes of graphometer
The ratio of 2 length and the sine of angle, cosine value are compared, you can draw a conclusion.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (4)
1. the trigonometric function instrument for measuring and calculating of a kind of teaching, including head rod (2), the second connecting rod (8), the 3rd connecting rod
And fixed mount (12) (9), it is characterised in that：Roller bearing (7) is installed above the fixed mount (12), the roller bearing (7) it is upper
Side is provided with head rod (2), and the bottom of head rod (2) is provided with the draw-in groove (6) cooperated with roller bearing (7), institute
The bottom for stating roller bearing (7) is connected by rotating shaft (1) with one end of the 3rd connecting rod (9), the other end of the 3rd connecting rod (9)
Lower section Universal self-locking wheel (10) is installed, the other end of the 3rd connecting rod (9) is fixed with handle (11), and the described 3rd connects
Extension bar (9) is hinged by rotating shaft (1) near handle (11) with one end of the second connecting rod (8), second connecting rod (8)
The other end is connected by rotating shaft (1) with the top of head rod (2), the head rod (2), the second connecting rod (8),
Three connecting rods (9) are all two-part, and the cooperation interconnection for passing through spool (13) and tape measure (3), the one of the spool (13)
Side is provided with rocking bar (4), the head rod (2) and the 3rd connecting rod (9), the 3rd connecting rod (9) and the second connecting rod
(8), the second connecting rod (8) is all provided with graphometer (5) with the inner side of head rod (2) hinged place.
2. the trigonometric function instrument for measuring and calculating of a kind of teaching according to claim 1, it is characterised in that：3rd connecting rod
(9) it is parallel to each other with fixed mount (12).
3. the trigonometric function instrument for measuring and calculating of a kind of teaching according to claim 1, it is characterised in that：The head rod
(2), the second connecting rod (8) and the 3rd connecting rod (9) are end to end by rotating shaft (1).
4. the trigonometric function instrument for measuring and calculating of a kind of teaching according to claim 1, it is characterised in that：The graphometer (5)
There is gap between two corresponding connecting rods when mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621328435.XU CN206249708U (en) | 2016-12-06 | 2016-12-06 | A kind of trigonometric function instrument for measuring and calculating of teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621328435.XU CN206249708U (en) | 2016-12-06 | 2016-12-06 | A kind of trigonometric function instrument for measuring and calculating of teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206249708U true CN206249708U (en) | 2017-06-13 |
Family
ID=59003666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621328435.XU Expired - Fee Related CN206249708U (en) | 2016-12-06 | 2016-12-06 | A kind of trigonometric function instrument for measuring and calculating of teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206249708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677227A (en) * | 2017-09-21 | 2018-02-09 | 镇江龙逸电子科技有限公司 | A kind of device of auxiliary ultrasonic thickness meter probe thickness measuring |
-
2016
- 2016-12-06 CN CN201621328435.XU patent/CN206249708U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677227A (en) * | 2017-09-21 | 2018-02-09 | 镇江龙逸电子科技有限公司 | A kind of device of auxiliary ultrasonic thickness meter probe thickness measuring |
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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: 20170613 Termination date: 20171206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |