Portable balance for physics teaching

Abstract

The invention relates to the technical field of physics teaching balances, in particular to a portable physics teaching balance which comprises a base, a balance nut and a tray, the outer side of the base is connected with an extension frame, the top end of the extension frame is provided with a portable support structure, the portable support structure comprises a telescopic rod, the top end of the telescopic rod is connected with a pull rod, and the pull rod is connected with the balance nut. The outer side of the telescopic rod is connected with a positioning ring, a connecting ring is attached to the outer side of the positioning ring, and the connecting ring is rotationally connected with the telescopic rod. By matching the fixed connection of the telescopic rod and the pull rod, the fixed connection of the balance rod and the connecting ring and the fixed connection of the fixed column and the base, when a teacher needs to carry the base, the teacher directly pulls the pull rod, lifts the telescopic rod, connects the fixed column through the balance rod connected with the connecting ring on the outer side of the telescopic rod, and drives the base to move; a teacher can carry the balance with one hand, and carrying is convenient.

Description

technical field [0001] The invention relates to the technical field of physics teaching balances, in particular to a portable physics teaching balance. Background technique [0002] A balance is an instrument for weighing the mass of an object. Commonly used are analytical balances, physical balances, student balances, tray balances, etc. Physical balances, student balances, and tray balances are commonly used in middle school physics laboratories. It is made according to the principle that the force acting on the equal moment arm is equal". It is mainly composed of a floating code, a scale, a balance nut, a bottom plate, a dividing plate, a beam pointer, a heavy vertical line, etc. The main technical parameters of the balance are weighing , Inductance, etc. Weighing refers to the maximum mass value (full load value) that the balance can weigh, often expressed in grams (g), and the inductance is what makes the balance pointer deflect from the balance position to the scale of...

AI Technical Summary

Problems solved by technology

[0003] As a commonly used tool for physics teaching, the balance often needs to be carried between the classroom and the office. Because the balance base is large and does not have a carrying rod structure, it is very inconvenient to carry the balance. The auxiliary tools used in the balance, The weights are generally stored in a separate box, which requires the teacher to carry both the balance and the weights together, which further increases the difficulty of carrying the balance. Friction force also requires easy sliding adjustment of the sliding code and the scale. The existing sliding code is only a buckle block structure, which is relatively simple. When sliding and adjusting, it is easy to get stuck outside the scale, which is inconvenient to adjust

Images