CN203165294U

CN203165294U - Experiment tool for mechanics

Info

Publication number: CN203165294U
Application number: CN 201320140125
Authority: CN
Inventors: 崔洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-26
Filing date: 2013-03-26
Publication date: 2013-08-28
Anticipated expiration: 2023-03-26

Abstract

The utility model discloses an experiment tool for mechanics, which comprises a lever, a support, a base and weights. The experiment tool is characterized in that the center of the lever is hinged and connected with the support, the surface of the lever is symmetrically provided with graduations from the center to the left and right sides, the reverse side of the lever is provided with a spring with a hook, the lower end of the lever is provided with a sliding chute, two identical balance hooks are hung on the sliding chute, two ends of the lever is welded with rings with a gap, and a smooth disk with a gradienter is placed on the ring. The experiment tool for mechanics is simple in structure and convenient to use, and can carry out a balance experiment by using assistance of the balance hooks on the sliding chute and the graduations. The experiment tool disclosed by the utility model can weigh articles by adopting the weights, and can also determine the weight of an article through observing the graduations by removing the lever from the support and taking the disk down and using the relationship between deformation of the spring and an external force.

Description

A kind of Experiments of Machanics apparatus

Technical field

[0001] the utility model relates to the mechanics equipment technical field, particularly a kind of Experiments of Machanics apparatus.

Background technology

In the Experiments of Machanics process, when carrying out weight of object mensuration, what generally adopt is the relation of lever balance theory and spring deformation and external force, beam balance generally is to utilize equilibrium principle to carry out the article weighing, but can't allow the student understand lever balance theory (power * power arm=power * power arm) intuitively, what spring deformation and external force relation were measured the general employing of Item Weight is spring balance, but it is attractive in appearance because pursuing, spring in the spring balance is packaged in inside, and the student also can't directly observe the variation of spring length when the object weighing and the relation between the weight of object.

Summary of the invention

A kind of Experiments of Machanics apparatus that the utility model provides according to the deficiencies in the prior art.

The technical solution of the utility model is: a kind of Experiments of Machanics apparatus, comprise lever, support, base, counterweight, wherein said lever center is connected with the support twisting, the lever surface from the center to the left and right symmetria bilateralis indicate scale, the lever back side is provided with the spring of band hook, and the lever lower end is provided with chute, hangs with two identical steelyard hooks on the chute, weld the annulus that has breach at the lever two ends, place the smooth circular plate that has level meter on the annulus.

The utility model is compared with prior art, the utility model is simple in structure, use easy to carry, that can utilize steelyard hook on the chute and scale auxiliaryly carries out balance test, can adopt counterweight to carry out the article weighing, also lever can be taken out from support, disk is taken off, utilize the relation of spring deformation and external force, measure Item Weight by observing scale.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the synoptic diagram of disk 13 in the utility model.

Embodiment

With reference to Figure of description the utility model is done following detailed description the in detail:

As depicted in figs. 1 and 2, a kind of Experiments of Machanics apparatus, comprise lever 1, support 2, base 3, counterweight 4, wherein said lever 1 center is connected with support 2 twistings, lever 1 surface from the center to the left and right symmetria bilateralis indicate scale 5, lever 1 back side is provided with the spring 7 of band hook 6, lever 1 lower end is provided with chute 8, hang with two identical steelyard hooks 9 on the chute 8, the annulus 11 that has breach 10 in the welding of lever 1 two ends, place the smooth circular plate 13 that has level meter 12 on the annulus 11, when carrying out the mechanical balance experiment, counterweight 4 can be suspended on the steelyard hook 9 steelyard hook on the slip chute, range estimation scale 5, according to the equilibrium principle of power * power arm=power * power arm, carry out the balance test explanation, also can adopt equilibrium principle to utilize counterweight 4 to carry out the article weighing, lever 1 can also be taken out from support 2, disk 13 is taken off, utilize the relation of spring 7 deformation and external force, measure Item Weight by observing scale 5.

Claims

1. Experiments of Machanics apparatus, comprise lever, support, base, counterweight, it is characterized in that: the lever center is connected with the support twisting, the lever surface from the center to the left and right symmetria bilateralis indicate scale, the lever back side is provided with the spring of band hook, and the lever lower end is provided with chute, hangs with two identical steelyard hooks on the chute, weld the annulus that has breach at the lever two ends, place the smooth circular plate that has level meter on the annulus.