Balance used for physical teaching

Abstract

The invention discloses a balance used for physical teaching. The balance comprises a base plate, a support column, an external thread, a rotation plate, an internal thread, a pedestal, a fixing rod,a sector ruler, a pointer, a fixing shaft, a crossbeam, a threaded rod, an adjusting nut, a hanging ring, a hanging rope, a tray, a fixing plate, an elastic spring, a rubber block, a water storage shell and a glass strip. The structure of the balance used for physical teaching is reasonable and the design is novel. Through mutual cooperation of the support column, the rotation plate, the pedestal,the base plate, the water storage shell and the glass strip, the base plate can be placed horizontally so that the balance can be stably used, balance measurement precision is guaranteed and usage isconvenient. Through interaction of the rubber block, the elastic spring and the fixing rod, a fluctuated angle of the crossbeam is reduced, crossbeam stop time is shortened, an operator can read conveniently, a practical value is high and popularization and usage are convenient.

Description

technical field [0001] The invention relates to a balance, in particular to a balance for physics teaching, belonging to the technical field of educational equipment application. Background technique [0002] A balance is a kind of weighing apparatus. The balance beam is supported by a fulcrum (axis) at the center of the beam to form two arms. A plate is hung on each arm. An object of known mass is placed in one plate, and an object of known mass is placed in the other plate. Put the object to be measured, and the deflection of the pointer fixed on the beam when it does not swing and points to the middle scale indicates the quality of the object to be measured; the balance is a kind of equal arm lever; the balance is an instrument for measuring the quality of the object; it is based on Made of the principle of leverage, there is a small plate at both ends of the lever, a weight is placed at one end, and an object to be weighed is placed at the other end. There is a pointer i...

AI Technical Summary

Problems solved by technology

[0003] There are many problems in the use of balances for physics teaching. For example, some existing balances for physics teaching often have beams that fluctuate up and down during use, and the beams fluctuate up and down for a long time, which affects the operator’s readings and reduces work efficiency. The placement requirements of some physics teaching balances are very high, and some existing physics teaching balances may cause inaccurate measurement results due to uneven placement surfaces

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