CN105973407A

CN105973407A - Improved dual-precision electronic scale

Info

Publication number: CN105973407A
Application number: CN201610098449.5A
Authority: CN
Inventors: 申俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-01-20
Filing date: 2016-01-20
Publication date: 2016-09-28

Abstract

The invention discloses an improved dual-precision electronic scale. The improved dual-precision electronic scale comprises a loading plate, a first precision weighing component which is used for supporting the loading plate, a second precision weighing component which is used for supporting the loading plate and the first precision weighing component, and a force transmitting member which is used for transmitting the received pressure to the second precision weighing component. The first precision weighing component comprises an elastic support member. The force transmitting member comprises a bearing plate which is provided with support holes and a crimp plate region, and four settling members fixed on the bottom wall of the bearing plate. Each settling member is provided with a settling cavity facing a corresponding a support hole. The top wall of the bearing plate is used as a force transmitting support part. The bottom wall of the loading plate is used as a force transmitting crimp part. In a free state, the force transmitting crimp part of the loading plate is higher than the force transmitting support part of the force transmitting member. When the loading plate carries an object, the stressed loading plate presses the elastic support member and moves down. After the loading plate is stressed to a certain extent, the force transmitting crimp part crimps the force transmitting support part of the force transmitting member. The improved dual-precision electronic scale provided by the invention is safe, reliable, dual-precision and multifunctional.

Description

A kind of modified model double precision electronic scale

Technical field

The invention belongs to electronic balance structure design field, be specifically related to a kind of modified model double precision electronic scale.

Background technology

Body weight electronic scale in the market, its structure mainly includes support board, display screen, regulation switch, power module With the LOAD CELLS composition for supporting support board, its function is mainly used in human body of weighing, and is usually when object to be claimed After weight exceedes preset value, display screen just starts to show numerical value, and this preset value is usually 5 kilograms；It addition, this kind of body weight The maximum range of electronic scale is usually 180 kilograms, and scale division value is 100 grams, and error is relatively big, so this traditional body weight Electronic scale, on ordinary days in addition to weighing in, substantially cannot function as its use, especially cannot be used for using as electronic scale. And existing electronic scale, its scale division value can reach 1 gram, but its range is usually no more than 50 kilograms, so not Can use as scale.The most also having scale division value to can reach 2 grams, range can reach the electronic scale of 150 kilograms, System uses the force cell that precision is higher and range is bigger to make, but its price is much more expensive, it is impossible to universal.

Summary of the invention

It is an object of the invention to provide a kind of cost relatively low, both can be as wide range, body weight electronic scale that precision is low, again Can be as small-range, the modified model double precision electronic scale of electronic scale that precision is high.

The technical scheme realizing the object of the invention is: a kind of modified model double precision electronic scale, including support board, for supporting First precision of support board weigh assembly, for supporting support board and weigh the second precision of assembly of the first precision is weighed group Part and weighing power of the leading part of assembly for self pressure is passed to the second precision；First precision is weighed assembly bag Include elastic supporting piece；The power part of leading includes being provided with support holes and the bearing plate in crimping plate district and being fixed on bearing plate diapire Seatings；Each seatings has the placing chamber just arranged a corresponding support holes；The roof of bearing plate props up as the power of leading Bearing portion, the diapire of support board is as leading power pressure contact portion；Each second precision assembly of weighing includes having the deck of storage tank, sets Put the second precision force cell in storage tank, the apical grafting spike on the second precision force cell, cover Storage tank bottom opening and there is the spring lid of center positioning hole；The roof of each deck is directly bonded and fixed at bearing plate crimping plate On the diapire in portion；Prop up spike to be arranged in the center positioning hole of spring lid；Each first precision assembly of weighing is arranged on corresponding one In placing chamber, each first precision weigh assembly include being provided with containing cavity mounting seat, cover containing cavity bottom end opening and The elastic closure with central bore, the first precision force cell and the elastic supporting piece being positioned in containing cavity；Peace The top of dress seat is bonded and fixed on support board diapire；Elastic supporting piece includes screw thread spring, is fixedly installed on screw thread spring The upper supporting part on top and the lower supporting part being fixedly installed on screw thread spring bottom end, the top of upper supporting part is arranged on elastomeric cap Central bore in, and apical grafting is on the first precision force cell, and lower supporting part crimping is arranged on the diapire of seatings； During free state, power of the leading pressure contact portion of support board exceeds power of the leading support leading power part；During support board carrying object, loading Compression elasticity supporting member under plate stress and move down, support board is in stress to after to a certain degree, and it is led power pressure contact portion and is crimped on the power of leading On power of the leading support of part.

In such scheme, during support board stress moves down until being crimped on and leading on power part, elastic supporting piece is in elasticity Deformed state.

In such scheme, the bottom of a spike is the least significant end of the present embodiment.

The present invention in use, while having concurrently as body weight electronic scale and electronic scale, moreover it is possible at object to be claimed Weight when exceeding the maximum range of electronic scale, effectively prevent from damaging electronic scale.It addition, the present invention can use On market, existing cheap force cell is made, so greatly reducing cost, it is easy to universal.

Accompanying drawing explanation

Fig. 1 is a kind of perspective view of the present invention；

Fig. 2 is that electronic scale shown in Fig. 1 is as a kind of structural representation during electronic scale；

Fig. 3 is a kind of close-up schematic view in Fig. 2 at A；

Fig. 4 is that electronic scale shown in Fig. 1 is as a kind of structural representation during body weight electronic scale；

Fig. 5 is a kind of perspective view of the first precision force cell in electronic scale shown in Fig. 1；

Fig. 6 is a kind of perspective view when another angle is observed of the first precision force cell shown in Fig. 5；

Fig. 7 is a kind of perspective view of the second precision force cell in electronic scale shown in Fig. 1；

Fig. 8 is a kind of perspective view when another angle is observed of the second precision force cell shown in Fig. 7.

Detailed description of the invention

(embodiment 1)

The present embodiment is a kind of modified model double precision electronic scale, as shown in Fig. 1 to Fig. 8, including support board 1, display screen 11, regulation switch 12, assembly 2 of weighing for four the first precision supporting support board, for supporting support board and first Weigh four the second precision of assembly of precision are weighed assembly 3 and claiming for self pressure is passed to the second precision Lead power part 4 for four of restructuring part.

Power of leading part 4 in the present embodiment includes being provided with support holes 51 and the bearing plate 5 in crimping plate district 52 and being fixed on Four seatings 6 on bearing plate diapire；Each seatings 6 has the placing chamber just arranged a corresponding support holes 51 61；Horizontally disposed confined planes it is additionally provided with in placing chamber.The roof of bearing plate 5 as leading power support 41, support board Diapire is as leading power pressure contact portion 10.

In the present embodiment, the weigh concrete structure of assembly 3 of the second precision is as follows: include having storage tank 33 and draw-in groove Deck 34, the second precision force cell 31 being arranged in draw-in groove, apical grafting are on the second precision force cell 31 Prop up spike 32, cover storage tank 33 bottom opening and there is the spring lid 35 of center positioning hole 351；In the present embodiment, The weigh roof of the deck 34 in assembly of each second precision is directly bonded and fixed at bearing plate 5 and crimps on the diapire in plate portion 52； A spike 32 in the present embodiment includes that cylindrical metal props up bracer 321 and is bonded in the slipmat of bracer 321 bottom 322, described bracer 321 is arranged in the center positioning hole of spring lid, slipmat low go out spring lid.Described spring lid concrete Structure is to include inner ring, outer ring and connect inner ring and a plurality of spiral arm of outer ring, and center positioning hole is arranged on inner ring, Its effect is that positioning metal props up bracer, allows metal support block that self pressure is transmitted vertically downward, the most also avoids card Seat directly passes to metal support block by spring lid self pressure, is ability already due to its structure and technique effect Field technique personnel know, and it is no longer carefully stated by the present embodiment.Structure this spring lid 35 similar of following elastic closure 28. The bottom propping up spike is the least significant end of the present embodiment.

In the present embodiment, each first precision assembly 2 of weighing is arranged in a corresponding placing chamber 61, and each first precision claims Restructuring part include being provided with draw-in groove and containing cavity mounting seat 27, cover containing cavity bottom end opening in mounting seat and have The elastic closure 28 of heart open-work, be positioned in containing cavity and the first precision force cell 22 of being connected in draw-in groove and Elastic supporting piece 21.The top of mounting seat 27 is bonded and fixed on support board diapire；Elastic supporting piece 21 includes thread bullet Spring 211, it is arranged on the upper supporting part 212 on screw thread spring top and is arranged on the lower supporting part 213 of screw thread spring bottom end, The top of upper supporting part is arranged in the central bore of elastomeric cap, and apical grafting is on the first precision force cell, lower support Part crimping is arranged on the diapire 62 of seatings.Under free state, the first precision is weighed the top of assembly 2 namely installation The roof of seat 27 exceeds as bearing plate 5 roof leading power support 40.

In the present embodiment, each placing chamber 53 deviates the second precision and weighs assembly so that the first precision is weighed assembly 2 and Two precision assembly 3 of weighing forms the form that mutually staggers and arranges, and this structure can reduce whole height.

In the present embodiment, as shown in Fig. 5 and Fig. 6, the first precision force cell 22 is conventional weighing mould for kitchen use Block, its range is 0 to 20 kilogram, and precision is 1 gram；This first precision force cell include the first fixed part 221, First load deformations 222 and the first resistance strain gage 223.First fixed part clamping of this first precision force cell Being fixed in the draw-in groove of mounting seat 27, the upper supporting part apical grafting in elastic supporting piece is in the first load deformations.

In the present embodiment, as shown in Fig. 7 and Fig. 8, the second precision force cell 31 is that conventional body weight weighs Sensor, its range is 5 kilograms to 180 kilograms, and precision (also referred to as scale division value) is 100 grams；This second precision is surveyed Force transducer 31 includes the second fixed part the 311, second load deformations 312 and the second resistance strain gage 313.This is second years old Second fixed part 311 of precision force cell is fixed in the draw-in groove of deck 34, and bracer 321 apical grafting is the In two load deformations 312.

The operation principle of the present embodiment is: when carrying the pressure of object suffered by support board less than the first precision force cell During maximum range, under the supporting of elastic supporting piece, power of the leading pressure contact portion 10 of support board exceed all the time lead power part lead power Support 40, namely the diapire of support board exceeds the roof of bearing plate 5 all the time, support board is whole pressure of carrying object First pass through the first precision force cell and pass to elastic supporting piece, be transferred to bearing plate then through seatings, After reach and pass to the second precision force cell, display screen display can be made now by regulation switch or intelligent control circuit Show the weight amount weighed the first precision assembly weighs, ignore the second precision and weigh the weighing numerical value of assembly, should during Weighing precision can reach 1 gram, so the present embodiment can use as electronic scale.

When the pressure carrying object suffered by support board is more than the maximum range of the first precision force cell, leading of support board Power pressure contact portion 10 is crimped on simultaneously leads power of the leading support 40 of power part and the first precision is weighed on assembly；Support board is holding The partial pressure of object carrier first passes through the first precision force cell and passes to elastic supporting piece, then through seatings It is transferred to bearing plate, finally reaches and pass to the second precision force cell；Simultaneously support board also carrying object remaining Pressure is directly passed to the second precision force cell by leading power part, owing to, during this, the deformation of elastic supporting piece is not Can increase again, so support board is applied to the pressure on the first accurate sensor and will not increase again, by selecting suitable spiral shell Bellows spring, can make this partial pressure elastic deformation tolerance range not over the first precision force cell, namely not The first precision force cell can be damaged.Display screen can be made to show second now by regulation switch or intelligent control circuit Precision is weighed the weight amount that assembly weighs, and ignores the first precision and weighs the weighing numerical value of assembly, should during weighing essence Degree can reach 100 grams, so the present embodiment is also used as body weight electronic scale and uses.

It addition, in the present embodiment, the area of bearing plate is identical with support board, in concrete practice, it is possible to support board is made Less, bearing plate is made bigger so that bearing plate serves not only as leading power part and uses, and is alternatively arranged as assisting support board to use； Such as when weighing wisp, it is directly placed on support board 1 weighing, as when using for weighing scale, is the most directly stood Weighing on bearing plate 5, because sole is the dirtiest, this occupation mode can avoid support board 1 of making dirty.

Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not to this The restriction of the embodiment of invention.For those of ordinary skill in the field, the most also may be used To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And this Belong to obvious change that the connotation of the present invention extended out a bit or variation still falls within protection scope of the present invention.

Claims

1. a modified model double precision electronic scale, weighs assembly including support board, for supporting the first precision of support board； It is characterized in that: also include for supporting support board and weigh the second precision of assembly of the first precision is weighed assembly, Yi Jiyong Weigh power of the leading part of assembly in self pressure is passed to the second precision；First precision assembly of weighing includes elastic bearing Part；The power part of leading includes being provided with support holes and the bearing plate in crimping plate district and being fixed on the seatings on bearing plate diapire； Each seatings has the placing chamber just arranged a corresponding support holes；The roof of bearing plate is as leading power support, loading The diapire of plate is as leading power pressure contact portion；Each second precision assembly of weighing includes having the deck of storage tank, is arranged on storage tank In the second precision force cell, the apical grafting spike on the second precision force cell, cover bottom storage tank Opening and there is the spring lid of center positioning hole；The roof of each deck is directly bonded and fixed at the diapire in bearing plate crimping plate portion On；Prop up spike to be arranged in the center positioning hole of spring lid；Each first precision assembly of weighing is arranged in a corresponding placing chamber, Each first precision weigh assembly include being provided with containing cavity mounting seat, cover containing cavity bottom end opening and to have center saturating The elastic closure in hole, the first precision force cell and the elastic supporting piece being positioned in containing cavity；The top of mounting seat It is bonded and fixed on support board diapire；Elastic supporting piece include screw thread spring, be fixedly installed on screw thread spring top upper Bearing member and the lower supporting part being fixedly installed on screw thread spring bottom end, the top of upper supporting part is arranged on the central bore of elastomeric cap In, and apical grafting is on the first precision force cell, lower supporting part crimping is arranged on the diapire of seatings；Free state Time, power of the leading pressure contact portion of support board exceeds power of the leading support leading power part；During support board carrying object, under support board stress Compression elasticity supporting member and move down, support board in stress to after to a certain degree, its lead power pressure contact portion be crimped on lead power part lead power On support.

Modified model double precision electronic scale the most according to claim 1, it is characterised in that: support board stress moves down directly During being crimped on and leading on power part, elastic supporting piece is in elastic deformation state.

Modified model double precision electronic scale the most according to claim 1, it is characterised in that: the bottom of a spike is this The least significant end of embodiment.