CN2241869Y - Mechanical balance - Google Patents

Abstract

The utility model relates to a mechanical balance belonging to weighing appliances and mainly comprising a cross beam, an upright post and a bottom plate. A pointer is arranged on the cross beam, a weight dropper is suspended on a middle knife pad, and the bottom plate and the cross beam have no need of adjustment in use. The balance of the cross beam can be signified if the pointer is in superposition with a weight vertical line. The utility model has the advantages of simple structure, convenient operation and high accuracy.

Description

A kind of mechanical balance

The utility model belongs to the weighing apparatus, particularly a kind of weighing mechanical balance.

Used mechanical balance mainly contains crossbeam, column, base plate and level now.To regulate in two steps during use.At first observe level, regulate the horizontal screw on the base plate, make floor level; Next regulates crossbeam, makes the midline of pointed index plate, makes the crossbeam level, is actually to make crossbeam parallel with base plate, if base plate is out-of-level a little, just is easy to produce error, influences the weighing effect, simultaneously complex operation.Though plumb line is also arranged on the balance that has, whether level of base plate is just determined in its effect.

The purpose of this utility model is to provide a kind of improved mechanical balance.

The utility model is achieved in that

A kind of mechanical balance mainly contains crossbeam, column, base plate, middle cutter and middle edge bearing, crossbeam stands on the middle edge bearing that is fixed together with column by middle cutter, contain the pointer perpendicular on the crossbeam with it, feature is to have a hole on the middle edge bearing, heavily hang down pass this hole hang on the extended line of edge bearing and middle cutter edge of a knife osculatory.

For this hole easy to use is a round taper hole.

Owing to adopt above structure, during use the sky lain against on the ordinary desktop and just can use, no longer need to adjust base plate and crossbeam, have simple in structure, easy to use, the technique effect that degree of accuracy is high.

Fig. 1 is a kind of structural representation of the present utility model;

Fig. 2 is the structural representation of middle cutter, middle edge bearing part;

Wherein 1 is crossbeam, and 2 is column, and 3 is the extension dish, and 4 is base plate, and 5 is middle cutter, and 6 is middle edge bearing, and 7 is bellmouth, and 8 is pointer, and 9 attach most importance to vertically, and 10 is plumb line, and 11 is the summit.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

As Fig. 1, shown in Figure 2, a kind of mechanical balance mainly contains column 2, base plate 4, crossbeam 1, middle cutter 5 and middle edge bearing 6, and column 2 one ends are fixed on the base plate 4, middle edge bearing 6 is fixed on the other end of column 2, crossbeam 1 two ends hang with extension dish 3, and crossbeam 1 center fixed has the downward middle cutter 5 of the edge of a knife, and the edge of a knife is put on the middle edge bearing 6, pointer 8 is fixed on the central authorities of crossbeam 1 and vertically downward, pointer 8 is positioned at column 2 fronts; Have a hole 7 on the middle edge bearing 6, this hole 7 is preferably down the big little bellmouth 7 of, the summit 11 of bellmouth 7 is arranged on the extended line of cutter 5 edges of a knife and edge bearing 6 osculatory, heavily hang down and 9 pass bellmouth 7 by plumb line 10 and hang on 11 places, summit, plumb line 10 is between pointer 8 and column 2, and plumb line 10 will be longer than pointer 8, is beneficial to observe, plumb line 10 and pointer 8 near and do not contact, to reduce malobservation.

During use, the sky is lain against on the ordinary desktop, tube bottom plate 4 level whether not, plumb line 10 must be straight down, and pointer 8 overlaps with plumb line 10, crossbeam 1 is a balance.By increasing and decreasing counterweight and stirring rider, pointer 8 is overlapped with plumb line 10 during weighing, weighing promptly finishes.

Claims (2)

1 one kinds of mechanical balances, mainly contain crossbeam 1, middle cutter 5, middle edge bearing 6 and column 2, contain pointer 8 vertically downward on the crossbeam 1, crossbeam 1 stands on the middle edge bearing 6 that is fixed together with column 2 by middle cutter 5, it is characterized in that: have a hole 7 on the middle edge bearing 6, heavily hang down 9 pass this hole 7 hang on the extended line of edge bearing 6 and middle cutter 5 edge of a knife osculatory.

2 a kind of mechanical balances according to claim 1 is characterized in that: little bellmouth for big down in this hole 7,9 summits 11 that hang on this bellmouth 7 of heavily hanging down.

Images