CN2061685U

CN2061685U - Portable balance

Info

Publication number: CN2061685U
Application number: CN 90203256
Authority: CN
Inventors: 郭静峰
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-23
Filing date: 1990-03-23
Publication date: 1990-09-05

Abstract

The utility model relates to a portable balance, which is composed of a balance bar, a counterweight, a balance hook, a dial disc and a handle, wherein, the counterweight is fixed at one end of the balance bar, the balance hook is hanged at the other end of the balance bar, the dial disc is semicircular and is coplanar with the balance bar, the handle is hinged with the balance bar, and the hinged joint is the centre of the circle of the semicircle dial disc. The weight of a weighed object is indicated by utilizing the changes of the included angle between the balance bar and the handle. Altering the weight of the counterweight or the hanged position of the balance hook can alter the weighing span. The portable balance has the maximum characteristics of small size and exact measure.

Description

Portable balance

The utility model relates to a kind of scale, particularly a kind of portable balance.

Existing scale mainly contains four kinds, it is the electronic scales that the bigger platform balance of volume, steelyard, portable spring scale and numeral show, except that the portable spring scale, other three kinds of scales are all than heaviness or complex structure, inconvenience is carried and is used, the major defect of spring balance is that the elasticity coefficient of spring can't keep constant, thus cause weigh inaccurate.In addition, the range of spring balance also can't change.

The purpose of this utility model is that the portable balance that a kind of measurement simple in structure is accurate and range is variable will be provided.

This portable balance that the utility model proposes comprises: the arm beam of steelyard, sliding weight of steelyard, steelyard hook, index dial and handle, sliding weight of steelyard is positioned on an end of the arm beam of steelyard, index dial is semicircle, it is positioned at the arm beam of steelyard other end, one end and the arm beam of steelyard of handle are hinged, and pin joint is the center of circle of fan dial, and an end of steelyard hook hangs on the direction relative with sliding weight of steelyard of the pin joint outside, wherein, the weight of sliding weight of steelyard and steelyard hook articulate a little and the handle pin joint between apart from can changing.The scale of this scale is the angle between the handle and the arm beam of steelyard, alleged varying in weight, the angle of the handle and the arm beam of steelyard is also different, increase sliding weight of steelyard weight or reduce that steelyard hook articulates a little and the handle pin joint between distance, can increase the range of this scale, otherwise then reduce range.

Since with the arm beam of steelyard of reflection measured object weight in the prior art longitudinally the length scale convert angle index to, therefore above-mentioned portable balance has only the very short arm beam of steelyard and very little volume.Adopt lever principle, can obtain than the better accuracy of spring balance, the variation of range makes this scale that wider use occasion be arranged.

Below in conjunction with embodiment and accompanying drawing thereof the utility model is described further.

Fig. 1 is the positive side figure according to the portable balance that the utility model proposes.

Fig. 2 is the right side view of portable balance shown in Figure 1.

As illustrated in fig. 1 and 2, this portable balance comprises the arm beam of steelyard 1, sliding weight of steelyard 2, steelyard hook 3, index dial 4 and handle 5, and the arm beam of steelyard 1 is a straight-bar, and sliding weight of steelyard 2 is the bigger derby of proportion, and it is fixed on the left end of the arm beam of steelyard 1, index dial 4 semicirculars in shape, and with arm beam of steelyard coplane.The center of circle is at hinged rivet 6 places of the handle 5 and the arm beam of steelyard 1, steelyard hook 3 hangs in the hole 7 or 8 of right-hand member of the arm beam of steelyard 1, when steelyard hook 3 hangs in the hole 8 on the left side, the range of this scale is bigger, handle 5 is that a U-shaped sheet metal is made, and U-shaped two arms are clamped index dial (Fig. 2), and the scale corresponding positions on handle and the index dial is equipped with a pointer 9, the direction of pointer 9 is used to indicate the weight of alleged thing over against hinged rivet 6.In the present embodiment, the arm beam of steelyard 1 and index dial 4 usefulness one thick sheet metal integral body are made.In addition, if increase or reduce several times of sliding weight of steelyard weight, the then also corresponding increase of this weighing journey or reduce several times, scale zero is positioned on the extended line of sliding weight of steelyard center of gravity and rivet 6 lines, and promptly angle [alpha] is zero, and alleged weight is heavy more, and the α angle is big more, and the scale indication is also big more.

Claims

A kind of portable balance, comprise the arm beam of steelyard 1, be fixed on the sliding weight of steelyard 2 of the arm beam of steelyard 1 one ends, the steelyard hook 3 that hangs over the arm beam of steelyard other end, index dial 4 and handle 5, it is characterized in that, index dial 4 be semicircle and with arm beam of steelyard coplane, handle 5 usefulness one rivet 6 is hinged at the circle centre position that is positioned at the fan dial on the arm beam of steelyard 1 and the arm beam of steelyard 1.