CN2134643Y - Computer-pricing platform scale - Google Patents

Abstract

The utility model discloses a computer-pricing platform scale, which relates to the combination of a mechanical platform scale and an electronic scale. The computer-pricing platform scale is characterized in that the weight-bearing body and the force transmission mechanism of the mechanical platform scale are utilized to transmit force to a sensor in a computer weighing price-counting instrument on the top end of the post of the mechanical platform scale; for further enlarging range, a lever can be arranged in the inner chamber of the post. The force which is transmitted passes through the lever, and then is transmitted to the sensor at a definite lever ratio. As the sensor is indirectly stressed and the mechanical platform scale is directly stressed, the utility model has the advantages of strong environmental suitability, easy and accurate use, and low cost; the price of the computer-pricing platform scale is only the 30 to 40 % of the complete computer scale of the same range.

Description

Computer-pricing platform scale

It is the computer valuation platform balance that make on the basis with mechanical platform balance that the utility model relates to a kind of.

Advantages such as pure mechanical stage weighing-appliance has range big, and is durable in use have obtained widely using in every field, but that weak point is a precision is lower, reading is inconvenient, and can not valuate automatically etc., can not satisfy present use needs.Though and pure computer balance precision height, can valuate automatically etc., therefore comparatively harsh because of directly using the sensor load-bearing, and range is less, and the sensor price of wide range is than higher to environment for use.Therefore the mechano-electronic dual-purpose scale that mechanical scale and electronic scales combine has appearred, as Chinese patent application number 90222046.2 disclosed the sort of scales, its sensor signal is that the sliding weight from the metering scale of mechanical scale takes out, circuit and display then are contained on the horizontal Beam, therefore its structural integrity is poor, fragile, error is big and influence each other.

The purpose of this utility model is exactly that solution prior art sampling error is big, the shortcoming of structural integrity difference.

The purpose of this utility model is achieved in that

Column top at existing mechanical platform balance connects a base plate, on base plate, fix a computer weighing valuation instrument, connect a connecting link on the sensor wherein, connecting link links by hole on the base plate and the hook bar in the column, for further range extension, between the hook bar of connecting link, be provided with a lever, which is provided with load cutter and cutter holds, on base plate or column, connect a load bar, it and connecting link and hook bar all with lever on cutter separately hold and link, form a leverage with range extension.

Owing to adopted technique scheme, sensor is directly load-bearing but with original mechanical bearing platform, therefore the utility model adaptability is strong, precision height, range are big, and cost is low, after testing, the computer valuation platform balance precision of utilizing technical solutions of the utility model to make reaches GB three utmost points, and total cost is the 30-40% of the full-electronic platform balance of identical range.

In order to illustrate further the utility model, following routine accompanying drawing provides three most preferred embodiments of the present utility model.

Description of drawings:

Fig. 1 is a structure cut-open view of the present utility model, and its range is 150Kg;

Fig. 2 is the structure cut-open view of range 300Kg;

Fig. 3 is the structure cut-open view of range 600Kg.

As Fig. 1, shown in Figure 2, column 801, the 802nd, the original column of the mechanical platform balance of national standard, block from above, with screw attachment base plate 501 and 502, (it is known product to be fixed with a computer weighing valuation instrument on base plate separately respectively, can buy on the market, also can make by oneself) 401 and 402, wherein be fixed with sensor 301 and 302 respectively, because the difference of the version of sensor, sensor 301 is screwed a connecting link 101 from above, establish a backing plate 201 between it and the sensor, connecting link 101 reaches column 801 inner chambers from the middle hole of base plate downwards, and it is intrinsic in the former mechanical platform balance for hook bar 601() hang on the pivot pin 701 of connecting link lower end.Because the connection holes in the sensor 302 is a through hole, so connecting link 102 is fixed by bolts on the sensor 302 from below, establish a backing plate 202 between them, connecting link 102 stretches into column 802 inner chambers downwards, and hook bar 602 directly is hooked in the hole of connecting link 102 lower ends.For range is further enlarged, a lever 901 can be set in column 803 inner chambers, as shown in Figure 3, be provided with three load cuttves 903 by certain lever ratio on the lever 901, the load cutter is associated with cutter respectively and holds 902, connecting link 103 connects with loop-hook 105, the cutter that loop-hook 105 is hooked to the left side holds, the cutter that connecting link 103 also can directly be hooked in the left side holds, cutter in the middle of hook bar 603 is hooked in holds, other is provided with a load bar 104, and its upper end is associated on the base plate 503, and the cutter that the lower end is hooked in the right holds.

Claims (2)

1, a kind of computer valuation platform balance, it comprises the load-bearing body of mechanical platform balance, force transmission mechanism, column and hook bar, it is characterized in that at base plate of column top connection, be fixed with computer weighing valuation instrument on the base plate, connect a connecting link on the sensor in the computer weighing valuation instrument, connecting link links by hole on the base plate and hook bar.

2, computer valuation platform balance according to claim 1, it is characterized in that lever in the middle of being provided with between connecting link and the hook bar, which is provided with load cutter and cutter and hold that other establishes a load bar, it with connecting link and hook bar all with lever on cutter separately hold and be connected, form a leverage.

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