一种三角函数罗盘
By designing a trigonometric function compass, combined with a mathematical symbol label and a rotation drive mechanism, a dynamic display of trigonometric functions was achieved, solving the problems of abstractness and numerous formulas in traditional teaching, and improving students' understanding and application abilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 张金保
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional teaching, the abstract nature and numerous formulas of trigonometric functions make it difficult for students to understand them intuitively, and the lack of dynamic presentation methods affects the teaching effect.
Design a trigonometric function compass that combines a mathematical symbol label and a rotation drive mechanism. By automatically or manually rotating the pointer, it dynamically displays the formation process of angles and the changing patterns of trigonometric function values, achieving visual teaching that combines graphs and numbers.
It improved students' understanding and application of trigonometric functions, enhanced the interest and practicality of teaching, and helped students build a complete knowledge system of trigonometric functions.
Smart Images
Figure CN224519423U_ABST
Abstract
Claims
1. A trigonometric function compass, characterized by: It includes a compass body (1) and a mathematical symbol label plate (2) disposed on the front surface of the compass body (1). The compass body (1) is equipped with a rotating shaft (5) inside. The front end of the rotating shaft (5) passes through the compass body (1) and is equipped with a pointer (3). The input end of the rotating shaft (5) is equipped with a rotation drive mechanism (4). The rotary drive mechanism (4) includes an electric drive (401) located at the rear end of the rotating shaft (5), a bevel gear (402) is provided on the rotating shaft (5), a bevel gear (403) is movably provided inside the compass body (1), a handwheel (404) is movably provided on one side of the compass body (1), and the handwheel (404) and the bevel gear (403) are connected by a separator (6).
2. A trigonometric function compass according to claim 1, characterized in that: The separating component (6) includes a sleeve (603) disposed at the input end of the bevel gear (403). The sleeve (603) has a plurality of tooth blocks (604) inside. A toothed shaft (606) is movably disposed inside the handwheel (404). A shaft (601) is disposed at the rear end of the toothed shaft (606). A plurality of tooth blocks (605) are disposed around the rear end of the shaft (601).
3. A trigonometric function compass according to claim 2, characterized in that: The first tooth block (604) and the second tooth block (605) are fitted together, and the front end surface of the first tooth block (604) and the rear end surface of the second tooth block (605) are both provided with arc-shaped surfaces.
4. A trigonometric function compass according to claim 2, characterized in that: Limiting blocks (602) are provided at both ends of the gear shaft (606).
5. A trigonometric function compass according to claim 1, characterized in that: An arc-shaped seat (503) is provided inside the compass body (1) via a telescopic rod (501). A spring (502) is provided between the arc-shaped seat (503) and the compass body (1). The arc-shaped seat (503) is adapted to the rotating shaft (5).