An experimental tool for students to learn the principle of leverage
A technology of lever principle and experimental equipment, which is applied in the field of experimental equipment for students to learn the principle of leverage, can solve the problems of inconvenient movement and braking, inability to place spare tools, and inability to clearly display experimental data, etc., so as to achieve convenient and convenient use The effect of learning to use
Active Publication Date: 2020-02-04
杜丽红
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Problems solved by technology
However, the experimental data of the device cannot be clearly displayed, spare tools cannot be placed, and the height of the workbench cannot be changed, nor is it convenient to move and brake the device
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[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0015] see Figure 1-2 , the present invention provides a kind of technical scheme: a kind of student learning lever principle experiment apparatus, comprises base plate 1, and the upper surface of base plate 1 is provided with telescopic rod 3, and the upper surface of telescopic rod 3 is provided with workbench 6, and the upper surface of workbench 6 Surface is provided with support 7, and the upper surface of support 7 is connected with connecting rod 21, a...
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The invention discloses an experiment tool for students to learn the lever principle, and the tool comprises a bottom plate. The upper surface of the bottom plate is provided with a telescoping rod, and the upper surface of the telescoping rod is provided with a workbench. The upper surface of the workbench is provided with a support, and the upper surface of the support is connected with a connecting rod. Two ends of the connecting rod are respectively provided with a lock catch, and a side surface of the connecting rod is connected with a lever. A side surface of the lever is provided with athrough slot, and the lever is rotatingly connected with the connecting rod through the through slot. A side surface of the lever is provided with a scale mark. The bottom surface of the lever is provided with six hooks at equal intervals. The experiment tool achieves an experiment of the lever principle through the lever, a first tension sensor and a second tension sensor, and a tool box is usedfor placing the experiment tool. The height of the workbench is changed through the telescoping rod and an adjustment bolt, thereby bringing more convenience to the students for use. The tool is moved and braked through universal wheels, a brake and a handle, so the tool is convenient to use, and is suitable for popularization and application.
Description
technical field [0001] The invention relates to the technical field of lever principle experiments, in particular to an experimental tool for students to learn the lever principle. Background technique [0002] The principles of physics related to mechanics are difficult to understand. The existing teaching tools are relatively simple. Set up a swingable lever, hang weights of different weights on both ends of the lever, move the position of the weights, and you can see the weights of the same weight The distance between the yards is equal, and the lever can maintain balance. The weights of different weights need to be adjusted to different distances to maintain the balance of the lever. The experimental operation is complicated, there is no specific data, and the experimental accuracy is lacking. [0003] For example, the patent application publication number CN Principle 205384797 Principle U discloses a lever principle experimental device, which belongs to the field of te...
Claims
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IPC IPC(8): G09B23/10
CPCG09B23/10
Inventor 朱于良
Owner 杜丽红