A physical mechanics dynamometer

Abstract

The invention discloses a physical mechanics dynamometer comprising an upper clamping board, rotation apparatuses are fixedly connected on a left side face and a right side face of the upper clampingboard, top ends of the two rotation apparatuses are respectively fixedly connected to a first driven wheel and a second driven wheel, and the first driven wheel and the second driven wheel are respectively positioned on a left side and a right side of the upper clamping board. In the physical mechanics dynamometer, the upper clamping board, a lower clamping board, a first driving wheel, a second driving wheel, a screw thread column, a screw thread cap, a first clamping groove and a second clamping groove are arranged; when use of a dynamometer body is required, the upper clamping board is placed on a clamping block by a teacher, the clamping block is clamped via the first clamping groove, the lower clamping board is enabled to drive the second clamping groove to move upward so as to clampthe clamping block, the dynamometer body is fixed and cannot shake leftward or rightward, the dynamometer body can be prevented from shaking leftward or rightward due to effects exerted by heavy objects when the heavy objects are hung on a hook, and inaccuracy of numeric values on the dynamometer body can be prevented.

Description

technical field [0001] The invention relates to the technical field of teaching appliances, in particular to a physical mechanics dynamometer. Background technique [0002] Teaching aids are the general term for all kinds of utensils used to enable students to intuitively and visually understand the teaching content and the utensils used by teachers in teaching. Teaching aids can improve students' interest in learning, enrich perceptual knowledge, help form clear concepts, and develop students' observation and thinking abilities. It is generally divided into three categories: ordinary teaching aids, special teaching aids and children's teaching aids. [0003] Now teachers use physical dynamometers to measure the weight of objects in teaching. When the pull ring is hung on the object, it is unstable. When there is a heavy object hanging on the hook, the pull ring cannot fix the dynamometer and make the dynamometer It will not shake, so that when the heavy object is hung on ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a physical and mechanical dynamometer, which solves the problem of instability when the pull ring is hung on the object, and when a heavy object is hung on the hook, the pull ring cannot fix the dynamometer So that the dynamometer will not shake, so that when the heavy object is hung on the hook, the dynamometer will swing left and right, which may cause inaccurate measurement values ​​on the dynamometer

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