A kind of multi-functional folding rule
Technical field
The utility model belongs to teaching aid, relates to measurer, particularly a kind of multi-functional folding rule.
Background technology
In teaching process, usually need measure length and angle, in the present measurement; The measurement of length and angle is separately to carry out with different teaching aids mostly, has to combine, but when measuring length; The length of chi body itself is preferential, and the object of measurement receives certain restriction.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the purpose of the utility model is to provide a kind of multi-functional folding rule, can measure length value in a big way; Simultaneously can the value of taking measurement of an angle; Can also be used to drawing circle, have characteristics simple in structure, easy to use as compasses.
To achieve these goals, the technical scheme of the utility model employing is:
A kind of multi-functional folding rule; Comprise the chi 1 that writes, an end termination of the chi 1 that writes is provided with anchor clamps 5, and the other end connects gage group 2; Gage group 2 is formed by a plurality of gages are hinged in order; The hinged chi 1 that writes of one end of first gage 21, hinged second gage 22 of the other end writes and is connected with the arched plate 6 of band angle index between the chi 1 and first gage 21.
Gage one end of said composition gage group 2 is a plug 3, and the other end is a cell body 4, and jack 31 is arranged on the plug 3, and grooved hole 41 on the cell body 4, and plug 3 is used with cell body 4.
The gage of said composition gage group 2 all is a telescopic structure, and plug 3 is positioned on the internal layer chi body, and cell body 4 is positioned on the outer chi body, and perhaps plug 3 is positioned on the outer chi body, and cell body 4 is positioned on the internal layer chi body.
The utility model compared with prior art has the following advantages:
1) but the large-range measuring length value utilizes telescopic chi body, measurement range increases greatly;
2) can be used to the value of taking measurement of an angle;
3) can be used as compasses and draw circle, anchor clamps clamping chalk on the chi that writes then can carry out the picture circle or draw arc.
4) can be used to form various figures, like triangle, quadrilateral, trapezoidal, polygonal figures.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the side view of the single gage of the utility model.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is carried out more detailed explanation.
As shown in Figure 1, the utility model is a kind of multi-functional folding rule, comprises the chi 1 that writes; A write end termination of chi 1 is provided with anchor clamps 5, and anchor clamps 5 are common structure that can the clamping shaft, and the other end of the chi 1 that writes connects gage group 2; Gage group 2 is formed by a plurality of gages are hinged in order; The hinged chi 1 that writes of one end of first gage 21, hinged second gage 22 of the other end writes and is connected with the arched plate 6 of band angle index between the chi 1 and first gage 21.
Wherein, the gage of forming gage group 2 promptly first gage 21, second gage 22 ... N gage 2n.
As shown in Figure 2, be the structural representation of single gage, an end of gage is a plug 3, the other end is a cell body 4; Jack 31 is arranged on the plug 3, and grooved hole 41 on the cell body 4, and plug 3 is used with cell body 4; Simultaneously, these gages all are telescopic structure, and plug 3 is positioned on the internal layer chi body; Cell body 4 is positioned on the outer chi body, and perhaps plug 3 is positioned on the outer chi body, and cell body 4 is positioned on the internal layer chi body; When adjacent gage connects, plug 3 is inserted cell body 4, in jack 31 and slotted eye 41, insert rotating shaft and it is unlikely to from deviating to get final product in the air at the two ends of rotating shaft.
When measuring length, according to the different length that will measure, can use the gage of different numbers to measure, gage itself also is telescopic, so range for measuring increases greatly.
When taking measurement of an angle, utilize the arched plate 6 that writes between the chi 1 and first gage 21 can accomplish measurement.
Draw bowlder, clamping chalk in anchor clamps 5, an end that does not contact with the chi 1 that writes with first gage 21 is a fulcrum, accomplishes the picture circle.
The utility model adopts the telescopic chi body of band scale, has increased the linear measure longimetry scope greatly, can take measurement of an angle again simultaneously, can be used as compasses and draws, and can form various figures, at a teaching aid upper set multiple function, simple in structure, convenient and practical.