CN105973397A

CN105973397A - Safety electronic scale

Info

Publication number: CN105973397A
Application number: CN201610098426.4A
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 a safety electronic scale. The safety 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 a support hole and a crimp plate region, and a settling member fixed on the bottom wall of the bearing plate. 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 safety electronic scale provided by the invention can be used as a weight electronic scale and a kitchen electronic scale.

Description

A kind of Safty electronic scale

Technical field

The invention belongs to electronic balance structure design field, be specifically related to a kind of Safty 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 Safty electronic scale of electronic scale that precision is high.

The technical scheme realizing the object of the invention is: a kind of Safty electronic scale, including support board, for supporting support board The first precision weigh assembly, for support support board and the first precision weigh the second precision of assembly weigh assembly and Weigh power of the leading part of assembly for self pressure is passed to the second precision；First precision assembly of weighing includes elastic Bearing member；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； This 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 deck is bonded and fixed on the diapire in bearing plate crimping plate portion；Support Foot is arranged in the center positioning hole of spring lid；First precision assembly of weighing is arranged in described placing chamber, and the first precision is weighed Assembly include elastic supporting piece, cantilevered the first precision force cell, be arranged on first precision force cell one end and Load boss upwardly, it is arranged on the first accurate sensor other end and to the support rim of lower process；Described elasticity Supporting member includes screw thread spring, the upper supporting part being arranged on screw thread spring top, is arranged on the lower support of screw thread spring bottom end Part；The top of upper supporting part is bonded and fixed on support board diapire, and lower supporting part is crimped on load boss, support rim Diapire be crimped on the diapire of seatings；During free state, power of the leading pressure contact portion of support board exceeds leads the power of leading of power part and props up Bearing portion；Support board carrying object time, compression elasticity supporting member under support board stress and move down, support board in stress to certain journey After degree, it is led power pressure contact portion and is crimped on power of the leading support leading power 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 this electronic scale.

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 side-looking structural representation during electronic scale；

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

Fig. 4 is a kind of close-up schematic view in Fig. 2 at B；

Fig. 5 be electronic scale shown in Fig. 1 as a kind of structural representation during body weight electronic scale:

Fig. 6 is a kind of perspective view of the second precision force cell in electronic scale shown in Fig. 1；

Fig. 7 is a kind of perspective view when another angle is observed of the second precision force cell shown in Fig. 6.

Detailed description of the invention

(embodiment 1)

The present embodiment is a kind of Safty electronic scale, as shown in Fig. 1 to Fig. 7, including support board 1, display screen 11, adjusts Joint switch 12, assembly 2 of weighing for first precision supporting support board, claim for supporting support board and the first precision Four the second precision of restructuring part are weighed assembly 3 and weighing assembly for self pressure is passed to the second precision One lead power part 4.

Power of leading part 4 in the present embodiment includes two split parts, is provided with support holes 51 respectively and crimps holding of plate district 52 Weight plate 5 and the seatings 6 being fixed on bearing plate diapire；This seatings 6 has just to a corresponding supporting The placing chamber 61 that hole 51 is arranged；The roof of bearing plate 5 is as leading power support 41, and the diapire of support board is defeated as leading Meet portion 10.

In the present embodiment, the weigh concrete structure of assembly 3 of each 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 is on the second precision force cell 31 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.The diapire of slipmat is made For the diapire of a spike, it is the least significant end of the present embodiment.The concrete structure of described spring lid is to include inner ring, outer ring and company Connecing a plurality of spiral arm of inner ring and outer ring, center positioning hole is arranged on inner ring, and its effect is that positioning metal props up bracer, allows Metal support block is transmitted self pressure vertically downward, the most also avoids deck that self pressure is directly passed through spring Lid passes to metal support block, and owing to its structure and technique effect are well known to those skilled in the art already, the present embodiment is not Again it is carefully stated.

In the present embodiment, the first precision assembly 2 of weighing is arranged in described placing chamber 61, and the first precision is weighed assembly 2 Concrete structure as follows: include elastic supporting piece 21, cantilevered the first precision force cell 22, be arranged on first essence Degree force cell one end and load boss 25 upwardly, be arranged on the first accurate sensor other end and to lower process Support rim 26；Described elastic supporting piece includes screw thread spring 211, is arranged on the upper supporting part on screw thread spring top 212, being arranged on the lower supporting part 213 of screw thread spring bottom end, the top of screw thread spring fixes phase with upper supporting part by screw Even, the bottom of screw thread spring is fixedly linked also by screw with lower supporting part；The top of upper supporting part is bonded and fixed at loading On plate diapire, lower supporting part crimps and is fixed on load boss, and the diapire of support rim 26 crimps and is fixed on arrangement On the diapire 62 of part.

In the present embodiment, cantilevered the first precision force cell 22 is conventional kitchen LOAD CELLS, and its range is 0 To 20 kilograms, precision (also referred to as scale division value) is 1 gram.

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. 6 and Fig. 7, 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 elastic supporting piece and pass to the first precision force cell, 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 passes to the first precision force cell by elastic supporting piece, transmits then through seatings To bearing plate, then pass to the second precision force cell by bearing plate；Simultaneously support board also carrying object remaining Pressure is directly passed to the second precision force cell by bearing plate, 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 Safty electronic scale, weighs assembly including support board, for supporting the first precision of support board；It is special Levy and be: also include for supporting support board and weigh the second precision of assembly of the first precision is weighed assembly and for handle Self pressure passes to the second precision and weighs power of the leading part of assembly；First precision assembly of weighing includes 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 the seatings on bearing plate diapire；This peace Put part and there is the placing chamber just arranged a corresponding support holes；The roof of bearing plate as leading power support, support board Diapire is as leading power pressure contact portion；Each second precision assembly of weighing includes having the deck of storage tank, is arranged in storage tank Spike on the second precision force cell of second precision force cell, apical grafting, cover storage tank bottom opening And there is the spring lid of center positioning hole；The roof of deck is bonded and fixed on the diapire in bearing plate crimping plate portion；Prop up spike to set Put in the center positioning hole of spring lid；First precision assembly of weighing is arranged in described placing chamber, and the first precision is weighed assembly Including elastic supporting piece, cantilevered the first precision force cell, it is arranged on first precision force cell one end and upwards The load boss of projection, it is arranged on the first accurate sensor other end and to the support rim of lower process；Described elastic bearing Part includes screw thread spring, the upper supporting part being arranged on screw thread spring top, is arranged on the lower supporting part of screw thread spring bottom end； The top of upper supporting part is bonded and fixed on support board diapire, and lower supporting part is crimped on load boss, the end of support rim Wall pressure is connected 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, compression elasticity supporting member under support board stress and move down, support board in stress to after to a certain degree, It is led power pressure contact portion and is crimped on power of the leading support leading power part.

Safty electronic scale the most according to claim 1, it is characterised in that: support board stress moves down until crimping During leading on power part, elastic supporting piece is in elastic deformation state.

Safty electronic scale the most according to claim 1, it is characterised in that: the bottom of a spike is this electronic scale Least significant end.