Portable annular angle measuring ruler for teaching
阅读说明：本技术 教学用便捷式环形量角尺 (Portable annular angle measuring ruler for teaching ) 是由 吴元敏 于 2018-08-13 设计创作，主要内容包括：本发明公开教学用便捷式环形量角尺,解决现有技术丈量180°至360°之间的角度麻烦、以及误差大的问题。本发明包括外周环设有量角刻度的环形量角尺主体、设于量角尺主体的内环上的指针连接梁、连接于指针连接梁上的角度指示针,指针连接梁的自由端位于述量角尺主体的圆心处,指针连接梁的自由端设有向外凸出的环形嵌接凸块,角度指示针的一端设有环形嵌接环,环形嵌接环上开设有与环形嵌接凸块相匹配的环形嵌接槽,角度指示针通过环形嵌接凸块嵌接于环形嵌接槽内与指针连接梁相连接,并且角度指示针可相对于指针连接梁自由旋转以指示角度。本发明使用方便,对0°-360°的角度丈量十分方便,并且丈量结果精准。(The invention discloses a portable annular angle measuring ruler for teaching, which solves the problems of troublesome angle measurement between 180 degrees and 360 degrees and large error in the prior art. The angle gauge comprises an annular angle gauge main body, a pointer connecting beam and an angle indicating needle, wherein the outer periphery of the annular angle gauge main body is annularly provided with angle scales, the pointer connecting beam is arranged on an inner ring of the angle gauge main body, the angle indicating needle is connected to the pointer connecting beam, the free end of the pointer connecting beam is positioned at the circle center of the angle gauge main body, the free end of the pointer connecting beam is provided with an annular embedding lug protruding outwards, one end of the angle indicating needle is provided with an annular embedding ring, the annular embedding ring is provided with an annular embedding groove matched with the annular embedding lug, the angle indicating needle is embedded in the annular embedding groove through the annular embedding lug and connected with the pointer connecting beam, and the angle indicating needle can freely rotate relative to the pointer connecting beam to indicate an angle. The invention has convenient use, convenient measurement for the angle of 0-360 degrees and accurate measurement result.)
1. Portable annular protractor is used in teaching, its characterized in that: comprises an annular angle measuring ruler main body (1) with angle measuring scales on the peripheral ring, a pointer connecting beam (2) arranged on the inner ring of the angle measuring ruler main body (1), and an angle indicating needle (3) connected to the pointer connecting beam (2), the free end of the pointer connecting beam (2) is positioned at the center of the circle of the angle measuring ruler main body (1), the free end of the pointer connecting beam (2) is provided with an annular scarf convex block (4) which protrudes outwards, one end of the angle indicating needle (3) is provided with an annular embedding ring (6), the annular embedding ring (6) is provided with an annular embedding groove (5) matched with the annular embedding lug (4), the angle indicating needle (3) is embedded in the annular embedding groove (5) through the annular embedding lug (4) and is connected with the pointer connecting beam (2), and the angle indicating needle (3) can freely rotate relative to the pointer connecting beam (2) to indicate an angle.
2. The portable annular teaching protractor of claim 1, wherein: the inner side of the angle measuring scale is marked with angle numerical values at the corresponding angle measuring scale in a ten-digit progressive mode.
3. The portable annular teaching protractor of claim 1, wherein: the other end of the angle indicator needle (3) is aligned with the outer ring of the angle measuring ruler main body (1).
4. The portable annular teaching protractor of claim 1, wherein: the angle measuring ruler is characterized in that the angle measuring ruler main body (1) and the pointer connecting beam (2) are of an integrated structure and are made of transparent PVC materials.
Technical Field
The invention relates to a portable annular angle measuring ruler for teaching.
Background
The angle is measured to protractor mainly used, current protractor generally is half-moon shape, be used for measuring 0 to 180 angle, and measure again many times after need drawing the lead wire to the measurement of angle between 180 to 360, later add the result of measuring many times and draw, not only measure troublesome, still need through calculating the number of degrees that just can finally obtain the angle of measuring, waste time and energy, and the error after measuring many times can superpose, thereby make to measure the result accuracy poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a portable annular protractor is used in teaching, it is troublesome and the big problem of error to solve prior art and measure the angle between 180 to 360.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
portable annular protractor is used in teaching, including the annular protractor main part that the peripheral ring was equipped with the protractor scale, locate pointer tie-beam on the inner ring of protractor main part, connect in angle pointer on the pointer tie-beam, the free end of pointer tie-beam is located state the centre of a circle department of protractor main part, the free end of pointer tie-beam is equipped with outside convex annular scarf joint lug, the one end of angle pointer is equipped with annular scarf joint ring, annular scarf joint ring on seted up with annular scarf joint lug assorted annular scarf joint groove, the angle pointer passes through annular scarf joint lug scarf joint in the annular scarf joint inslot with the pointer tie-beam is connected, and the angle pointer can for pointer tie-beam free rotation is in order to instruct the angle.
Further, the inner side of the angle measuring scale is marked with angle numerical values at the corresponding angle measuring scale in a ten-digit progressive mode.
Further, the other end of the angle indicator pin is aligned with the outer ring of the protractor body.
Further, the protractor body and the pointer connecting beam are of an integrated structure and are made of transparent PVC materials.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention has simple structure, scientific and reasonable design, convenient use, convenient measurement for angles of 0-360 degrees and accurate measurement result.
(2) The angle measuring ruler is characterized in that the angle measuring ruler body is designed into a ring shape, the angle measuring ruler body is provided with angle measuring scales on the periphery, the angle measuring scales on the periphery are just 360 degrees, so that the angle between 0 degrees and 360 degrees can be conveniently measured, time and labor are saved, meanwhile, the pointer connecting beam is arranged on the inner ring, the angle indicating needle is rotatably connected onto the pointer connecting beam, one side of the measured angle is enabled to be coincident with the longitudinal axis of the pointer connecting beam, the angle indicating needle is rotated to be coincident with the other side of the measured angle, the degree of the measured angle can be conveniently read through the angle indicating needle, and the measuring precision is high.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of the main body of the angle square of the present invention.
FIG. 3 is a schematic view of an angle indicating needle according to the present invention.
Wherein, the names corresponding to the reference numbers are:
1-a main body of a protractor, 2-a pointer connecting beam, 3-an angle pointer, 4-an annular embedding lug, 5-an annular embedding groove and 6-an annular embedding ring.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in figures 1-3, the portable annular angle measuring ruler for teaching provided by the invention has the advantages of simple structure, scientific and reasonable design, convenient use, convenient measurement for angles of 0-360 degrees and accurate measurement result. The angle gauge comprises an annular angle gauge
The inner side of the angle measuring scale is marked with angle numerical values at the corresponding angle measuring scale in a ten-bit progressive mode, the other end of the
The angle measuring ruler is characterized in that the angle measuring ruler body is designed into a ring shape, the angle measuring ruler body is provided with angle measuring scales on the periphery, the angle measuring scales on the periphery are just 360 degrees, so that the angle between 0 degrees and 360 degrees can be conveniently measured, time and labor are saved, meanwhile, the pointer connecting beam is arranged on the inner ring, the angle indicating needle is rotatably connected onto the pointer connecting beam, one side of the measured angle is enabled to be coincident with the longitudinal axis of the pointer connecting beam, the angle indicating needle is rotated to be coincident with the other side of the measured angle, the degree of the measured angle can be conveniently read through the angle indicating needle, and the measuring precision is high.
The invention has ingenious conception and low manufacturing cost, can be produced in a large scale in a factory, and is suitable for being widely popularized and applied in the technical field.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
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