CN2209326Y - Multideck lever type steelyard - Google Patents

Abstract

The utility model relates to a multideck lever type steelyard, which comprises a bearing lever, a metering lever, metering rulers, sliding poises, a steelyard hook and a lifting ring. The utility model is characterized in that the multideck lever type steelyard has the metering lever with the bearing lever and the multideck ruler and a buffering lever positioned between the bearing lever and the multideck ruler. A fulcrum knife, an emphasis knife and a power pivot knife which are on one plane are respectively arranged on the bearing lever and the buffering lever; the metering lever is divided into an upper and a lower two layers; one sliding poise which can move forwards and backwards is respectively arranged on the large and the small rulers. The utility model has the advantages of small volume, light weight, high precision, stable indicated value, convenient carrying, etc., and is suitable for existing wooden-rod steelyards and is capable of being made into various hanging scales and hoisting devices.

Description

Multideck lever type steelyard

The utility model belongs to mechanical measurement instrument, relates to a kind of multilayer lever hook scale.

At present.The hook scale that the 50Kg of domestic use is above is single lever type cant hook scale, because the arm beam of steelyard of rod structure scale is long, sliding weight of steelyard is heavy, and the arm beam of steelyard separates with sliding weight of steelyard, therefore carries inconvenience.In addition, because rod is subjected to the influence of humidity in the air, the easy variable of bar, its precision lower (existing vertification regulation be defined as maximum weighing 1.5/400).

It is very short that the purpose of this utility model provides a kind of arm beam of steelyard, and sliding weight of steelyard is light, and the arm beam of steelyard and sliding weight of steelyard are combined, and ratio of precision is higher, not influenced and portable multilayer lever hook scale by temperature and humidity.In order to replace the cant hook scale prolonged with for many years, simultaneously with this structure loading cartridge of can having made the steelyard of all size and crane lifting.

Multilayer lever hook scale comprises load-bearing lever, measuring lever, metering scale, sliding weight, steelyard hook and drop handle, it is characterized in that:

Has a load-bearing lever, the measuring lever of a multilayer scale and the buffering lever between them; On each lever of load-bearing lever and buffering lever a fulcrum pivot on the plane is housed respectively, emphasing knife and force cutter, fulcrum pivot and emphasing knife are housed on the measuring lever, a cutter ring is housed on the emphasing knife of load-bearing lever, steelyard hook is equipped with in the bottom of cutter ring, a cutter is housed on the cutter of force to be held with the emphasing knife that cushions lever top and links to each other, the cutter ring of buffering lever force cutter links to each other with emphasing knife on the measuring lever on its top, emphasing knife all is contained on the edge bearing of scale zoarium, in the position of the corresponding fulcrum pivot in the outside of scale zoarium two retaining knife plates is housed respectively; Measuring lever divides two-layer up and down, and 50 reticules are arranged on the little scale in upper strata, equidistantly on the big scale has 10 measure-alike notches, and a sliding weight that can move forward and backward respectively is housed on the big or small scale, adorns a locating piece on the big sliding weight; The bottom of drop handle is connected with the two ends of scale zoarium with two isometric flexible bodies.

Multilayer lever hook scale can adopt two-layer lever, also can adopt four layers, five layers, the buffering lever quantity be 0-3 in addition more the layer lever, but want to reach and allow hook scale quality is less, volume is less, precision is higher, indicating value is stable, the requirement of several respects such as easy to use adopts three layers of lever the most reasonable.

The alleged weight of object of multilayer lever hook scale is indefinite, and from zero during to maximum weighing, center of gravity is all the time in a position of scale, the isosceles triangular structures that the steelyard suspension ring adopt many rings to connect to form.At drop handle of leg-of-mutton Xiang Shangyong, the bottom of two waists is connected with the corresponding site of scale zoarium respectively, and this structure can guarantee that under the situation of the anti-any weighing of empty scale, measuring lever can both guarantee level.

Multilayer lever hook scale is compared with the cant hook scale of identical weighing has that volume is little, in light weight, precision is high, indicating value is stable and advantage such as easy to carry.

See following table for details:

Arm beam of steelyard length contrast table 1

The calipers name Du Ge claim mm	50kg	100kg	150kg	200kg
					Old-fashioned hook scale	1100	1400	1500	1700
Multilayer lever hook scale	420	450	480	520

From the table 1 as can be seen, multilayer lever hook scale and the contrast of old-fashioned hook scale, length is about 1/3rd of old-fashioned hook scale.

The weight contrast table 2 of scale:

Weight-normality name amount lattice claim	50kg	100kg	150kg	200kg
					Old-fashioned hook scale	3500g	5300g	6800g	7800g
Multilayer lever hook scale	2100g	2300g	2500g	2800g

Find out that from table 2 multilayer lever hook scale is more light than old-fashioned hook weighing amount.Its precision of multilayer lever hook scale is 1d(1/500) and old-fashioned hook scale precision is 1.5d(1.5/400) multilayer lever hook scale makes of timber because of the arm beam of steelyard and is subjected to humidity effect very big.

Replace old-fashioned hook scale can save a large amount of timber and copper (because of the arm beam of steelyard of old-fashioned hook scale is made of high-quality timber and copper scale head) with multilayer lever hook scale.

Multilayer lever hook scale is because of volume is little, in light weight, sliding weight of steelyard and scale are advantages such as one, so very be easy to carry.

The utility model is provided by the following drawings and embodiment.

Accompanying drawing, be one-piece construction view of the present utility model.

Do below with reference to three layers of lever hook scale and to describe in further detail.This example is held (9), emphasing knife (10), force cutter (11), suspension ring (12), abutment ring (13), steelyard hook (14), fulcrum pivot (15) and weighing lever (16) etc. and is formed by drop handle (1), measuring lever (2), little sliding weight (3), big sliding weight (4), scale zoarium (5), measuring lever knife rest (6), counterweight stone roller (7), buffering lever (8), cutter.

Wherein on weighing lever (16) the buffering lever (8) three knives are housed respectively, be emphasing knife (10), fulcrum pivot (15), fulcrum pivot (11), these three knives must be in one plane, and maximum error must not be greater than ± 0.05mm, this example part in addition all adopts metal material, and part part in addition needs Carburization Treatment.

Measuring lever is long to be 218mm, and wide be that 4mm is high be 62mm, and wherein big scale height be 15mm; small tenon chi height be 10mm, and this degree live width is 1mm, longly is 3mm; groove must be clear; line be red or white, and the word length on the scale is 4mm, and wide be 3mm; scale zoarium length is 130mm; wide is 30mm, and height is 136mm, and measuring lever knife rest length is 175mm load-bearing lever and cushion lever and thickly be welded for 3mm sheet material for the forming board of 3mm and two block lengths are that the wide 8mm of being of 35mm is thick by two respectively.When weighing thing, at first move big sliding weight (4) to suitable notch place, and then move little sliding weight (3) till the lever level.At this moment, quality mass number and that be weighed object on little scale, pointed out of the mass number on big scale, pointed out of big sliding weight (4) and little sliding weight (3).

Claims (2)

1, a kind of multilayer lever angles scale, comprises that load-bearing lever (16), measuring lever (2), metering scale, sliding weight (3,4), scale angle (14) and drop handle (1), is characterized in that:

A. have the measuring lever (2) of a load-bearing lever (16), a multilayer scale and the buffering lever (8) between them,

B., fulcrum pivot (15) in one plane is housed respectively on each lever of load-bearing lever (16) and buffering lever (8), emphasing knife (10) and force cutter (11), measuring lever is equipped with fulcrum pivot and emphasing knife on (2), on the emphasing knife (10) of load-bearing lever (16) a cutter ring (12) is housed, the bottom of cutter ring (12) is equipped with scale and is angled (14), a cutter is housed on the force cutter (11) holds (9), link to each other with the emphasing knife (10) on buffering lever (8) top, emphasing knife (10) on the measuring lever (2) on cutter ring and its top of buffering lever (8) force cutter (11) links to each other, emphasing knife (10) all is contained on the edge bearing of scale zoarium (5), 2 retaining knife plates respectively are equipped with in the position of corresponding fulcrum pivot (15) in the outside of scale zoarium (5)

C. measuring lever (2) divides two-layerly up and down, and the little scale in upper strata has 50 reticules, equidistantly on the big scale has 10 measure-alike notches, and a sliding weight that can move forward and backward (4,3) respectively is housed on the large and small scale, adorns a locating piece on the big sliding weight (4),

D. the bottom of drop handle (1) is connected with the two ends of two isometric flexible bodies with scale zoarium (5).

2, hook scale as claimed in claim 1, the quantity that it is characterized in that cushioning lever (8) is 0～3.

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