WO2016011625A1

WO2016011625A1 - Electronic scale

Info

Publication number: WO2016011625A1
Application number: PCT/CN2014/082855
Authority: WO
Inventors: 王雅苹
Original assignee: 王雅苹
Priority date: 2014-07-23
Filing date: 2014-07-23
Publication date: 2016-01-28
Also published as: CN104838243B; CN104838243A

Abstract

An electronic scale, comprising a carrier plate (1), a first precision weighing assembly (2) for bearing the carrier plate (1), a second precision weighing assembly (3) for bearing the carrier plate (1) and the first precision weighing assembly (2), and a force transfer piece (4) for transferring a stress applied thereto to the second precision weighing assembly (2); the first precision weighing assembly (2) comprises a flexible support piece (21); the force transfer piece (4) is provided with a force transfer support portion (40); the carrier plate (1) is provided with a force transfer press-contact portion (10); when the carrier plate (1) has no object thereon, the force transfer press-contact portion of the carrier plate (1) is higher than the force transfer support portion (40) of the force transfer piece (4); and when the carrier plate (1) has an object thereon, the carrier plate (1), under a stress applied thereto, moves downward and presses the flexible support piece (21) downward, and when the stress applied to the carrier plate (1) reaches a certain level, the force transfer press-contact portion (10) presses and contacts the force transfer support portion (40) of the force transfer piece (4). The electronic scale serves as an electronic body weight scale and an electronic kitchen scale, and effectively prevents the electronic scale for the kitchen from damage when the weight of a carried object exceeds the maximum measurement range of the electronic scale for the kitchen.

Description

Electronic scale

Technical field

The invention belongs to the technical field of electronic scale structure design, and particularly relates to an electronic scale.

Background technique

At present, the weight electronic scale on the market mainly comprises a load board, a display screen, an adjustment switch, a power module and a load cell for supporting the load board, and the function is mainly for weighing the human body, and generally After the weight of the carrying object exceeds the preset value, the display will start to display the value. The preset value is generally 5 kg. In addition, the maximum range of the weight electronic scale is generally 180 kg, the division value is 100 g, and the error is larger. , so this traditional weight electronic scale is not only said in addition to the weekdays

In addition to weight, it can not be used as a basic, especially in kitchen electronic scales. The existing kitchen electronic scales can have a graduation value of 1 gram, but the range is generally not more than 50 kilograms, so it cannot be used as a weight scale. Current market book

There are also electronic scales with a scale of 2 grams and a range of up to 150 kilograms. They are made of load cells with high precision and large range, but they are very expensive and cannot be popularized. SUMMARY OF THE INVENTION The object of the present invention is to provide an electronic scale which is low in cost, can be used as a weight scale electronic scale with a large range and low precision, and can be used as a small scale and high precision kitchen electronic scale.

A first technical solution for achieving the object of the present invention is: an electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate; characterized in that: further comprising: a support plate for supporting a second precision weighing component of an precision weighing component, and a guiding member for transmitting the pressure received by itself to the second precision weighing component; the first precision weighing component comprises an elastic supporting member; a guiding support portion is provided with a guiding crimping portion on the carrier plate; when the carrier plate does not carry an object, the guiding crimping portion of the loading plate is higher than the guiding support portion of the guiding member; the carrier plate carries When the object is pressed, the load plate is pressed downward to press the elastic support member, and the load plate is pressed to the force support portion of the force guide member after the load plate is subjected to a certain degree of force.

In the above solution, the conductive crimping portion of the carrier plate is forced downward until it is crimped onto the conductive support portion of the force guiding member, and the elastic supporting member is in an elastically deformed state.

A second technical solution for achieving the object of the present invention is: an electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate; characterized in that: further comprising: a support plate and a a second precision weighing component of an accuracy weighing component, and a force guiding member for transmitting the pressure received by itself to the second precision weighing component; the first precision weighing component comprises an elastic bearing member; the guiding member comprises a bearing plate having a bearing hole, the bottom wall of the carrier plate serves as a guiding crimping portion; each of the first precision weighing components passes through the corresponding supporting hole and is connected to the bottom wall of the carrier plate; When the object plate does not carry the object, the guiding crimping portion of the loading plate is higher than the guiding support portion of the guiding member; when the carrier plate carries the object, the bottom wall of the loading plate is pressed downward to press the elastic supporting member and move downward After the load plate is stressed to a certain extent, the conductive crimping portion is crimped onto the force guiding portion of the force guiding member. In the above solution, the conductive crimping portion of the carrier plate is forced downward until it is crimped onto the conductive support portion of the force guiding member, and the elastic supporting member is in an elastically deformed state.

A third technical solution for achieving the object of the present invention is: an electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate; characterized in that: further comprising: a support plate and a a second precision weighing component of an accuracy weighing component, and a force guiding member for transmitting the pressure applied thereto to the second precision weighing component; the first precision weighing component comprises an elastic bearing member and a first precision measuring force The second precision weighing component comprises a second precision load cell; the guiding member is provided with a guiding support portion, and the guiding plate is provided with a guiding crimping portion; the carrier plate is crimped and disposed on the elastic supporting member The elastic support member is crimped and disposed on the first precision load cell, and the first precision load cell is directly crimped and disposed in the second precision force sensor.

The pressure receiving portion of the carrier plate is higher than the guiding support portion of the guiding member when the carrier plate is not carrying the object; when the carrier plate carries the object, the carrier plate Forced down the elastic support and move down, the load plate is stressed to a certain distance

After that, the conductive crimping portion is crimped onto the force guiding portion of the force guiding member.

In the above solution, the second precision weighing assembly further includes a support leg for supporting the second precision load cell, and the bottom end of the support leg is the lowest end of the electronic scale.

A fourth technical solution for achieving the object of the present invention is: an electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate; characterized in that: further comprising a support plate and a a second precision weighing component of an accuracy weighing component, and a force guiding member for transmitting the pressure applied thereto to the second precision weighing component; the first precision weighing component comprises an elastic bearing member and a first precision measuring force The second precision weighing component comprises a second precision load cell; the guiding member is provided with a guiding support portion, and the guiding plate is provided with a guiding crimping portion; the carrier plate is crimped and set at the first precision measurement On the force sensor, the first precision load cell is pressure-bonded on the elastic support member, and the elastic support member is directly crimped on the second precision load cell or crimped on the force guide member; the carrier plate does not carry the object When the bearing crimping portion of the carrier plate is higher than the guiding support portion of the guiding member; when the carrier plate carries the object, the carrier plate is pressed downward to press the elastic supporting member and moves downward, and the loading plate is stressed After a certain degree, its power Crimping portion to the guide portion guiding force supporting the force member.

A fifth technical solution for achieving the object of the present invention is: an electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate; characterized in that: further comprising: a support plate and a a second precision weighing component of an accuracy weighing component, and a force guiding member for transmitting the pressure applied thereto to the second precision weighing component; the first precision weighing component comprises An elastic support member and a first precision load cell; the elastic support member includes a threaded spring, an upper support member disposed at a top end of the threaded spring, and a lower support member disposed at a bottom end of the threaded spring; the second precision weighing assembly includes a second precision force measurement a conductive support portion is disposed on the force guiding member, and a force guiding crimping portion is disposed on the loading plate; the elastic supporting member is disposed above or below the first precision load cell; and the elastic supporting member is disposed at the first precision When the load cell is above, the carrier plate is crimped on the upper support member, the lower support member is crimped on the first precision load cell, and the first precision load cell is crimped on the second precision load cell. When the elastic support member is disposed under the first precision load cell, the carrier plate is crimped on the first precision load cell, and the first precision load cell is crimped on the upper support member, and the lower support member is pressed. Connected to the second precision load cell; when the carrier plate does not carry an object, the force crimping portion of the carrier plate is higher than the force guiding portion of the force guiding member;

When the object plate carries the object, the carrier plate is pressed down to press the elastic support member and moved downward. After the load plate is subjected to a certain degree of force, the force-bonding portion is crimped onto the force-supporting portion of the force-transmitting member.

Book

In the above solution, the guide crimping portion of the carrier plate is forced downward until it is crimped onto the force guiding support portion of the force guiding member, and the threaded spring is in an elastically deformed state.

When used in the present invention, in addition to being a weight electronic scale and a kitchen electronic scale, the invention can effectively prevent damage to the kitchen electronic scale when the weight of the carrying object exceeds the maximum range of the kitchen electronic scale. In addition, the present invention can be made using an inexpensive load cell that is already available on the market, so that the cost is greatly reduced and the popularity is easy.

DRAWINGS

1 is a schematic perspective view of a first structure of the present invention;

2 is a schematic perspective view of the electronic scale of FIG. 1 when viewed from another angle;

3 is a schematic structural view of the electronic scale shown in FIG. 1 as a kitchen electronic scale;

Figure 4 is a partially enlarged schematic view of a portion A in Figure 3;

Figure 5 is a schematic structural view of the electronic scale shown in Figure 1 as a weight electronic scale;

Figure 6 is a partially enlarged schematic view of a portion B in Figure 5;

7 is a perspective structural view of a first precision load cell in the electronic scale shown in FIG. 1;

8 is a schematic perspective view of the first precision load cell shown in FIG. 7 when viewed from another angle; FIG. 9 is a schematic perspective view of the second precision load cell of the electronic scale shown in FIG.

10 is a perspective structural view of the second precision load cell shown in FIG. 9 when viewed from another angle; FIG. 11 is a side view of the second structure of the present invention;

Figure 12 is a partial enlarged view of the portion C in Figure 11;

Figure 13 is a side elevational view showing the electronic scale of Figure 11 in another state;

Figure 14 is a perspective view showing a three-dimensional structure of a third structure of the present invention;

Figure 15 is an exploded view of the electronic scale shown in Figure 14; Figure 16 is a side elevational view showing the electronic scale of Figure 14;

Figure 17 is a partial enlarged view of the portion D in Figure 16;

Figure 18 is a side elevational view showing the electronic scale of Figure 16 in another state;

Figure 19 is a side view showing the structure of the fourth structure of the present invention;

Figure 20 is a partial enlarged view of the portion E in Figure 19;

Figure 21 is a side elevational view showing the electronic scale of Figure 19 in another state;

Figure 22 is a side elevational view showing the fifth structure of the present invention;

Figure 23 is a partial enlarged view of the portion F in Figure 22;

Figure 24 is a side elevational view showing the electronic scale of Figure 22 in another state;

Figure 25 is a side elevational view showing the sixth structure of the present invention;

Book

Figure 26 is a partial enlarged view of the portion G in Figure 25;

Figure 27 is a side elevational view showing the electronic scale of Figure 25 in another state;

28 is a side view showing a structure of a seventh structure of the present invention;

Figure 29 is a side elevational view showing the electronic scale of Figure 28 in another state;

Figure 30 is a side elevational view showing the eighth structure of the present invention;

Figure 31 is a side elevational view showing the electronic scale of Figure 30 in another state;

Figure 32 is a side view showing the structure of the ninth structure of the present invention;

Figure 33 is a partially enlarged schematic view of the portion H in Figure 32;

Figure 34 is a side elevational view showing the electronic scale of Figure 32 in another state;

Figure 35 is a side view showing the structure of the tenth structure of the present invention;

Figure 36 is a partially enlarged schematic view showing a portion I in Figure 35;

37 is a side view showing the structure of the electronic scale shown in FIG. 35 in another state;

Figure 38 is a side elevational view showing the structure of the eleventh embodiment of the present invention.

detailed description

(Embodiment 1): This embodiment is a double-precision electronic scale, as shown in Figs. 1 to 10, including a carrier board 1, a display screen 11, an adjustment switch 12, and four stages for supporting a carrier board. An precision weighing component 2, four second precision weighing components 3 for supporting the carrier plate and the first precision weighing component, and four for transmitting the pressure applied to the second precision weighing component Guide member 4.

In this embodiment, the specific structure of the second precision weighing component 3 is as follows: a card holder 34 having a receiving groove 33 and a card slot, a second precision load cell 31 disposed in the card slot, and a second connection The support leg 32 on the precision load cell 31 covers the spring cover 35 having a bottom opening and having a central positioning hole 351; the support leg 32 in this embodiment includes a circle The cylindrical metal support block 321 and the anti-slip pad 322 bonded to the bottom end of the support block 321 are disposed in the center positioning hole of the spring cover, and the anti-slip pad is lower than the spring cover. In this embodiment, the bottom end of the anti-slip mat serves as the bottom end of the support leg, which is the lowest end of the embodiment. The specific structure of the spring 35 includes an inner ring, an outer ring and a plurality of spiral arms connecting the inner ring and the outer ring. The central positioning hole is disposed on the inner ring, and the function is to position the metal support block and let the metal support block The pressure is transmitted vertically downwards, and the card seat is prevented from transmitting the pressure directly to the metal support block through the spring cover. Since the structure and technical effects are well known to those skilled in the art, this embodiment does not Make a detailed description.

The guiding member 4 in this embodiment includes a bottom wall 41 provided with a snap groove, a tubular support wall 42 enclosing the cavity, and a positioning surface disposed on the inner wall of the tubular support wall, the positioning surface being a tubular support A horizontal annular surface of the wall 42 is disposed radially, and a bottom wall 41 of the force guiding member is press-fitted on the top end of the card holder 34. In the present embodiment, the top end of the tubular support wall 42 serves as a guide support portion 40, and the bottom wall of the carrier plate serves as a conductive crimping portion.

10.

In this embodiment, each first precision weighing component 2 is disposed in a cavity of a corresponding one of the guiding members 4, and the specific structure thereof is as follows: including an elastic supporting member 21, a first precision load cell 22, and a central limiting hole The elastic cover 24 of the 241; the elastic support member includes a threaded spring 211, an upper support member 212 disposed at a top end of the threaded spring, a lower support member 213 disposed at a bottom end of the threaded spring, and the threaded spring and the upper support member and the lower support member respectively pass The fastening screw is connected; the outer peripheral edge of the elastic cover is crimped and fixed on the positioning surface of the force guiding member, and the lower support member 213 is disposed in the central limiting hole 241 of the elastic cover, and the upper support member is fixedly fixed on the carrier On the bottom of the board. The specific structure and technical effect of the elastic cover 24 are similar to the above-mentioned spring cover 35, and also include an inner ring, an outer ring and a plurality of spiral arms connecting the inner ring and the outer ring, and the central limiting hole 241 is disposed on the inner ring, The function is to position the lower support member located in the central limit hole thereof, so that the lower support member transmits the pressure directly under its own pressure, and also prevents the lower support member from transmitting the pressure directly thereto through the elastic cover to the force guide member. The tubular support wall, as its structure and technical effects have long been known to those skilled in the art, will not be described in detail in this embodiment.

The first precision load cell 22 is disposed in the snap groove of the bottom wall 41 of the force guiding member, and the bottom wall of the lower support member is crimped onto the first precision load cell.

In the present embodiment, as shown in FIG. 7 and FIG. 8, the first precision load cell 22 is a commonly used kitchen weighing module, and the range is 0 to 20 kilograms, and the division value is 1 gram; the first precision measurement The force sensor includes a first fixing portion 221, a first bearing force deformation portion 222, and a first resistance strain gauge 223. The first fixing portion of the first precision load cell is snap-fitted in the engaging groove of the bottom wall 41 of the force guiding member, and the lower supporting member of the elastic supporting member is crimped to the first bearing deformation portion.

In the present embodiment, as shown in FIG. 9 and FIG. 10, the second-precision load cell 31 is a commonly used human body weight measuring sensor having a range of 5 kg to 180 kg, and the division value (also referred to as accuracy) is 100. The second precision load cell 31 includes a second fixing portion 311, a second bearing force deformation portion 312, and a second resistance strain gauge 313. The second fixing portion 311 of the second precision load cell is snap-fitted into the card slot of the card holder 34 , and the support block 321 is abutted on the second bearing force deformation portion 312 . In this embodiment, the first precision load cell and the second precision load cell used can use a load cell that is widely distributed in the market and is relatively inexpensive, thereby effectively reducing manufacturing costs.

In the free state, that is, when no load bearing object is placed on the carrier, the top end of the upper support member in the elastic support member is raised above the top end of the tubular support wall 42 in the force guiding member, so that the bottom wall 10 of the load plate is higher. The top of the force piece. When the load-bearing object is placed on the load board and the weight of the load is less than 20 kg, the bottom wall of the load plate is always higher than the guide member during the downward movement of the load plate by selecting an appropriate thread spring. It is within the elastic deformation range of the thread spring. The load plate transmits the entire pressure of the carrying object to the first precision load cell through the elastic support member, and then to the second precision load cell. At this time, the display screen can display the first precision through the adjustment switch or the intelligent control circuit. The weighing value of the weighing component is weighed, and the weighing value of the second precision weighing component is ignored, and the weighing accuracy in the process can be up to 1 gram, so this embodiment can be used as a kitchen electronic scale.

Book

When the weight of the carrying object exceeds 20 kg, the carrier plate will move down until it is crimped onto the force guiding member, specifically, the bottom wall of the carrier plate as the guiding crimping portion 10 is simultaneously crimped at the same time as the guiding support portion. The top end of the tubular support wall 42 of 40, and the upper support in the first precision weigh assembly. The working principle is as follows: the carrier plate transmits part of the pressure of the carrying object to the first precision load cell through the elastic support member, and then to the second precision load cell; and the carrier plate also passes the remaining pressure of the carrying object The force guiding member is directly transmitted to the second precision load cell. Since the deformation of the elastic supporting member does not increase any more during this process, the partial pressure transmitted to the first precision load cell through the elastic supporting member is not increased. Large, by selecting the appropriate thread spring, the pressure of the part can not exceed the elastic deformation tolerance range of the first precision load cell, that is, the first precision load cell will not be damaged. At this time, the display switch can display the weight value of the second precision weighing component by adjusting the switch or the intelligent control circuit, and ignore the weighing value of the first precision weighing component, and the weighing accuracy in the process can reach 100 grams. Therefore, this embodiment can also be used as a weight electronic scale.

(Embodiment 2): This embodiment is basically the same as Embodiment 1, except that: as shown in FIG. 11 to FIG. 13, the guide member 4 in the embodiment and the card holder in the second precision weighing assembly 34 is integrally formed by injection molding. Compared with the first embodiment, the guide member in this embodiment is no longer provided with the bottom wall 41 alone, but the top wall of the card holder 34 is directly used as the guide force in the embodiment 1. The bottom wall 41 of the piece.

In addition, the specific structure of the first precision weighing component in the embodiment is as follows: including a mounting seat 27 provided with a card slot and a receiving cavity, and a cover having a central through hole in the bottom end of the receiving cavity in the mounting seat. The elastic cover 28, the first precision load cell 22 located in the accommodating cavity and engaged in the card slot, and the elastic support member 21. The top end of the mounting seat 27 is adhesively fixed to the bottom wall of the carrier plate; the elastic support member 21 includes a threaded spring 211, an upper support member 212 and a lower support member 213, and an upper portion of the upper support member is disposed in a central through hole of the elastic cover, And being connected to the first precision load cell, the lower support is crimped and disposed on the card holder 34 in the second precision weighing component. In the free state, the top end of the first precision weighing assembly 2 is raised above the force guiding support 40 of the force guiding member. In this embodiment, the first fixing portion 2221 of the first precision weighing component is engaged in the card slot of the mounting seat, A load-bearing deformation portion 222 is crimped onto the top end of the upper support member 212. The specific structure and technical effect of the elastic cover 28 are similar to the elastic cover 24 of the first embodiment, and also include an inner ring, an outer ring, and a plurality of spiral arms connecting the inner ring and the outer ring, and the central through hole is disposed in the inner ring. The function of the upper support member is to position the upper support member in the central limit hole, so that the upper support member transmits the pressure directly downwards thereof, and also prevents the mount from transmitting the pressure directly to the upper support through the spring cover. Since the structure and technical effects are well known to those skilled in the art, this embodiment will not be described in detail.

The working principle of the embodiment is: when the pressure of the object to be carried by the load plate is less than the maximum range of the first precision load cell, the force crimping portion 10 of the carrier plate is always higher than the force support of the force guiding member. a portion 40, the carrier first transmits the entire pressure of the carrying object to the first precision load cell, and then passes through the elastic support member to the second precision load cell,

At this time, the display switch can display the weight value of the first precision weighing component by adjusting the switch or the intelligent control circuit, and ignore the weighing value of the second precision weighing component, and the weighing accuracy in the process can reach 1 gram. So this embodiment can be used as a book

Use in kitchen electronic scales. When the pressure of the object to be carried by the load plate is greater than the maximum range of the first precision load cell, the force crimping portion 10 of the load plate is simultaneously crimped to the force support portion 40 of the force guide and the first precision On the heavy component; the carrier plate transmits part of the pressure of the carrying object to the elastic support member through the first precision load cell, and then to the second precision load cell; and the carrier plate also passes the remaining pressure of the carrying object through the guide The force member is directly transmitted to the second precision load cell. Since the deformation of the elastic support member does not increase any more during this process, the pressure exerted on the first precision sensor by the carrier plate does not increase any more, by selecting appropriate The thread spring can make the pressure of the part not exceed the elastic deformation tolerance of the first precision load cell, that is, the first precision load cell will not be damaged. At this time, the display switch can display the weight value of the second precision weighing component by adjusting the switch or the intelligent control circuit, and ignore the weighing value of the first precision weighing component, and the weighing accuracy in the process can reach 100 grams. Therefore, this embodiment can also be used as a weight electronic scale.

By comparison of the present embodiment with the embodiment 1, it can be confirmed that the position of the elastic support member can be varied without being limited to a specific position.

(Embodiment 3)

This embodiment is basically the same as Embodiment 1, except that: as shown in FIG. 14 to FIG. 18, this embodiment also provides a square having four circular support holes 51 at the top end of the tubular support wall in the force guiding member. In the present embodiment, the load bearing plate 5 serves as a force guiding support portion 40 of the force guiding member, and the bottom wall of the carrier plate still functions as the pressure guiding portion 10.

In the free state, the upper support member 212 of each elastic support member passes through a corresponding one of the support holes 51 and is adhesively fixed to the bottom wall of the carrier plate, so that the force crimping portion 10 of the load plate is higher than The guiding support portion 40 of the guiding member; when the weight of the carrying object on the carrier plate exceeds a certain degree, the carrier plate is moved down and pressed against the bearing plate, that is, the guiding crimping portion 10 of the carrier plate is crimped at The force guiding member 40 of the force guiding member.

In this embodiment, the shape of the load-bearing plate 5 is a flat plate shape, and its area is larger than the load plate. In fact, the load-bearing plate in this embodiment is not only used as the guide support portion 40 of the force guiding member, but also can be used as an auxiliary carrier plate; for example, when weighing a small object, It is placed directly on the carrier 1 for weighing. When used as a human scale, it is directly weighed on the load-bearing plate 5, because the sole is generally dirty, this way of use can avoid soiling the carrier 1.

Further, the display screen 11 and the adjustment switch 12 in Embodiment 1 are disposed on the load board, and the present embodiment is disposed on the bearing plate.

The working principle of the embodiment is: when the pressure of the object to be carried by the load plate is less than the maximum range of the first precision load cell, the force crimping portion 10 of the carrier plate is always higher than the force support of the force guiding member. The portion 40 transfers the entire pressure of the carrying object to the elastic support member, and then passes through the first precision load cell to the second precision load cell. In this case, the embodiment can be used as a kitchen electronic scale.

Say

When the pressure of the object to be carried by the load plate is greater than the maximum range of the first precision load cell, the force crimping portion 10 of the load plate is simultaneously crimped to the force support portion 40 of the force guide and the first precision Heavy component; the book carrying the object

Part of the pressure is transmitted to the first precision load cell through the elastic support member and then to the second precision load cell; and the carrier plate also transmits the remaining pressure of the load bearing object directly to the second precision load cell through the force guide member. At this time, the embodiment can also be used as a weight electronic scale.

(Embodiment 4): This embodiment is basically the same as Embodiment 3, except that: As shown in FIG. 19 to FIG. 21, in this embodiment, the guiding member 4 is crimped and disposed on the second precision weighing component. a load-bearing plate 5 on 3; the load-bearing plate 5 comprises four crimping plate regions 52 for crimping on the second precision weighing assembly 3, and four recessed for positioning the first precision weighing assembly The seating groove 53 of the bearing plate 5 serves as a guiding support portion 40; the bottom wall of the carrier plate still serves as the guiding crimping portion 10. In this embodiment, each of the positioning grooves 53 is offset from the second precision weighing component, so that the first precision weighing component 2 and the second precision weighing component 3 are arranged in a staggered manner, that is, the first in the embodiment. The precision precision weighing component 2 is no longer disposed directly above the second precision weighing component 3, and this structure can reduce the overall height.

In this embodiment, the top wall of the card holder 34 in each of the second precision weighing assemblies is directly bonded and fixed to the bottom wall of the crimping plate portion 52 of the bearing plate 5.

In this embodiment, each of the first precision weighing assemblies 2 is disposed in a corresponding one of the positioning slots 53. The specific structure of each of the first precision weighing assemblies 2 is as follows: including an elastic support member 21, a first precision load cell 22, and The elastic cover 24 of the central limiting hole 241; the elastic support member includes a threaded spring 211, an upper support member 212 disposed at the top end of the threaded spring, and a lower support member 213 disposed at the bottom end of the threaded spring; the top end of the upper support member is fixed and fixed On the bottom wall of the carrier, the lower support member is disposed in the central limiting hole of the elastic cover, and the bottom end of the lower support member is crimped to the first precision load cell 22. In the free state, the upper support member 212 is raised above the seating groove 53, so that the bottom wall of the carrier plate is higher than the load bearing plate.

In this embodiment, each of the positioning grooves 53 is provided with a horizontally disposed positioning surface, and each of the positioning groove bottom walls 531 is further provided with a positioning card slot; the bottom wall of the outer peripheral edge of the elastic cover is bonded and fixed on the positioning surface, first The first fixing portion 221 of the precision load cell is clamped and crimped in the positioning card slot, and the lower support member is crimped onto the first bearing deformation portion 222. The working principle of the embodiment is: when the pressure of the object to be carried by the load plate is less than the maximum range of the first precision load cell, the force crimping portion 10 of the carrier plate is always higher than the force support of the force guiding member. The portion 40, the carrier plate transmits the entire pressure of the carrying object to the first precision load cell through the elastic support member, and then passes through the force guiding member 4 to the second precision load cell. At this time, the embodiment can be used as a kitchen. Use in electronic scales.

When the pressure of the object to be carried by the load plate is greater than the maximum range of the first precision load cell, the force crimping portion 10 of the load plate is simultaneously crimped to the force support portion 40 of the force guide and the first precision On the heavy component; the load plate transmits part of the pressure of the carrying object to the first precision load cell through the elastic support member, and then passes through the force guide member to the second precision load cell; and the carrier plate also carries the object The rest of the pressure is transmitted directly to the second precision load cell through the force guide,

At this time, the embodiment can be used as a weight electronic scale.

In addition, as seen from FIG. 19 to FIG. 21, the size of the load-bearing plate in this embodiment is the same as that of the carrier plate;

In practice, the load plate can also be made smaller, and the load-bearing plate can be made larger, so that the load-bearing plate can be used not only as a guide member but also as an auxiliary carrier plate; for example, when weighing a small object, It is placed directly on the carrier 1 for weighing. When used as a human scale, it is directly weighed on the load-bearing plate 5, because the sole is generally dirty, this way of use can avoid soiling the carrier 1.

(Embodiment 5): This embodiment is basically the same as Embodiment 4, except that: As shown in FIG. 22 to FIG. 24, in this embodiment, the guiding member 4 is separately provided, and includes a supporting hole. 51 and a load-bearing plate 5 of the crimping plate region 52, and four mounting members 6 fixed to the bottom wall of the bearing plate; each of the mounting members 6 has a seating cavity 61 disposed opposite the corresponding one of the supporting holes 51; There is a fixing groove on the 62, and a horizontally arranged limiting surface is also arranged in the positioning cavity. The top wall of the bearing plate 5 still serves as the guide support portion 41.

The structure of the first precision weighing component 2 in this embodiment is basically the same as that of the embodiment 4, except that: the bottom wall of the outer peripheral edge of the elastic cover is bonded and fixed on the limiting surface, the first precision load cell card The solidified crimping is disposed in the retaining groove on the bottom wall of the seating cavity. In the free state, the upper support member 212 is raised above the load bearing plate 5 such that the bottom wall of the carrier plate is higher than the load bearing plate.

This embodiment makes the embodiment easier to implement by splitting the force guiding member 4 into two components of the bearing plate 5 and the mounting member 6.

(Embodiment 6): This embodiment is basically the same as Embodiment 5, except that: As shown in FIG. 25 to FIG. 27, in the present embodiment, the force guiding member 4 in this embodiment includes a support hole 51. The bearing plate 5 and the pad support 7 between the pressing plate 29 and the bottom wall of the bearing plate 5; in this embodiment, each pad supporting member is disposed directly above the card holder 34, of course, the pad supporting member is placed elsewhere, as long as the bearing is made It is also feasible that the plate can transfer its own pressure through the pad support to the second precision weighing component. In the present embodiment, the bearing plate still functions as the force guiding support portion 40.

In this embodiment, each of the first precision weighing assemblies 2 includes an elastic support member 21, a mounting seat 27 provided with a card slot and a receiving cavity, and a cover having a central through hole at the bottom end of the receiving cavity in the mounting seat. The elastic cover 28 of the 281 is located in the accommodating cavity and is engaged A first precision load cell 22 in the card slot and a cylindrical post 23 disposed in the elastomeric cover center through hole 281. The elastic support member 21 includes a threaded spring 211, an upper support member 212 disposed at the top end of the threaded spring, and a lower support member 213 disposed at the bottom end of the threaded spring. The top end of the upper support member passes through the corresponding one of the support holes 51 and is bonded and fixed to the load. On the bottom wall of the plate, the lower support member is press-fitted to the top wall of the mounting seat 27, and the first precision load cell 22 is press-fitted on the press post 23, and the press post is press-fitted on the press plate 29.

In this embodiment, the first fixing portion 221 of the first precision load cell 22 is locked in the slot of the mounting top wall, and the first bearing deformation portion 222 is crimped on the top end of the pressing column 23.

The pressure plate 29 in this embodiment is a square piece, which is a one-piece piece, and is crimped and fixed at four corners in four second precision weighing components.

The top wall of the card holder 34. The pad support 7 is disposed between the platen and the load bearing plate.

The working principle of this embodiment is: When the pressure of the load bearing object is less than the maximum precision of the first precision load cell

During the measuring range, the guiding crimping portion 10 of the carrier plate is always higher than the guiding support portion 40 of the guiding member, and the carrier plate transmits the entire pressure of the carrying object first to the first precision load cell through the elastic supporting member, and then The pressure is then transmitted to the second precision load cell through the pressure plate 29; in this case, the embodiment can be used as a kitchen electronic scale.

When the pressure of the object to be carried by the load plate is greater than the maximum range of the first precision load cell, the force crimping portion 10 of the load plate is simultaneously crimped to the force support portion 40 of the force guide and the first precision On the heavy component; the carrier plate transmits part of the pressure of the carrying object to the first precision load cell through the elastic support member, and then transmits the pressure to the second precision load cell through the pressure plate 29; and the carrier plate also carries the object The remaining pressure is directly transmitted to the second precision load cell through the force guiding member, and the embodiment can be used as a weight electronic scale.

(Embodiment 7): This embodiment is basically the same as Embodiment 1, except that: As shown in Figs. 29 to 30, this embodiment includes only one first precision weighing component and one second precision weighing component. .

In this embodiment, the support leg 32 of the second precision weighing component 3 is different from that of the embodiment 1. The support leg 32 in this embodiment includes a cylindrical metal support block 321 and a pallet integrally formed with the support block. 323, the pallet 323 is lower than the spring cover 35, and the pallet 323 serves as the bottom end of the supporting leg, which is the lowest end of the embodiment, and has a large supporting area, and can stably support the entire electronic scale.

In addition, in this embodiment, the specific structure of the first precision weighing component 2 is as follows: including an elastic support member 21, a first precision load cell 22, and a resilient cover 24 having a central limiting hole 241, which is set in the first precision measurement. a bearing boss 25 at one end of the force sensor and protruding upward, a support boss 26 disposed at the other end of the first precision sensor and protruding downward; the elastic support member includes a threaded spring 211, and an upper support member disposed at the top end of the threaded spring 212. A lower support member 213 disposed at a bottom end of the threaded spring; a bottom wall of the outer peripheral edge of the elastic cover is crimped and bonded to the positioning surface in the tubular support wall 42; the top wall of the upper support member is bonded and fixed to the carrier plate On the bottom wall; the lower support member 213 is disposed in the central limiting hole 241 of the elastic cover, and the bottom wall of the lower support member is crimped and fixed on the bearing boss 25, and the bottom wall of the support boss 26 is crimped and It is fixed on the top of the deck. The first precision load cell in this embodiment is a cantilever type load cell known to those skilled in the art, and has a range of 0 to 20 kilograms and a division value of 1 gram.

The working principle of the embodiment is: when the pressure of the object to be carried by the load plate is less than the maximum range of the first precision load cell, the force crimping portion 10 of the carrier plate is always higher than the force support of the force guiding member. a portion 40, the carrier plate transmits the entire pressure of the carrying object to the first precision load cell through the elastic support member, and then transmits the pressure to the second precision load cell through the support boss 26; Used as a kitchen electronic scale.

When the pressure of the object to be carried by the load plate is greater than the maximum range of the first precision load cell, the force crimping portion 10 of the load plate is simultaneously crimped to the force support portion 40 of the force guide and the first precision On the heavy component; the carrier plate carries the object

Part of the pressure is transmitted to the first precision load cell through the elastic support member, and then the pressure is transmitted to the second precision load cell through the support boss 26; and the carrier plate also transmits the remaining pressure of the load bearing object directly through the force guide member. Give the second precision book

The load cell, at this time, can be used as a weight electronic scale.

(Embodiment 8): This embodiment is basically the same as Embodiment 7, except that: as shown in FIG. 31 to FIG. 32, the force guiding member 4 and the card holder in the second precision weighing component in this embodiment are shown. 34 is integrally formed by injection molding. Compared with the first embodiment, the guide member in this embodiment is no longer provided with the bottom wall 41 alone, but the top wall of the card holder 34 is directly used as the guide force in the embodiment 1. The bottom wall 41; In addition, the positioning surface is no longer disposed in the tubular support wall to form the cavity.

The specific structure of the first precision weighing component in the embodiment is as follows: including an elastic support member 21, a cantilever type first precision load cell 22, a bearing boss 25 disposed at one end of the first precision load cell and protruding upward, a support boss 26 disposed at the other end of the first precision sensor and protruding downward; the elastic support member includes a threaded spring 211, an upper support member 212 disposed at the top end of the threaded spring, and a lower support member 213 disposed at the bottom end of the threaded spring; The top wall of the bearing boss 25 is adhesively fixed on the bottom wall of the carrier plate, and the bottom wall of the support boss 26 is crimped and fixed on the upper support member in the elastic support member, and the lower support member is crimped and fixed on the card. On the top of the seat 34.

(Embodiment 9): This embodiment is basically the same as Embodiment 5 except that: As shown in Figs. 33 to 35, this embodiment is provided with only one first precision weighing component 2. The specific structure of the first precision weighing component 2 is as follows: including an elastic support member 21, a cantilever type first precision load cell 22, a bearing boss 25 disposed at one end of the first precision load cell and protruding upward, and disposed at a support boss 26 at the other end of the first precision sensor and protruding downward; the elastic support member includes a threaded spring 211, an upper support member 212 disposed at a top end of the threaded spring, and a lower support member 213 disposed at a bottom end of the threaded spring; The top end of the piece is adhesively fixed to the bottom wall of the carrier plate, and the lower support member is press-fitted on the bearing boss 25, and the bottom wall of the support boss 26 is press-fitted to the bottom wall 62 of the mounting member.

(Embodiment 10): This embodiment is basically the same as Embodiment 1, except that: As shown in FIG. 36 to FIG. 38, in the present embodiment, the specific structure of the first precision weighing component 2 is as follows: a second precision load cell 22, a resilient cover 24 having a central limiting hole 241; the elastic support member 21 includes an elastic rod 214, a pressing block 215, and a member The limiting member 217 is fixed on the bottom wall of the carrier plate, and the limiting sliding slot 216 is horizontally disposed; the elastic rod 214 includes an anti-off sliding plate that can slide back and forth in the limiting sliding slot. a portion 2141, an elastic plate portion 2142 disposed obliquely to a plane of the loading plate; a bottom end of the elastic plate portion is rotatably connected to a top end of the pressing block 215, and the pressing block 215 is disposed in the central limiting hole 241 of the elastic cover, and the pressing block The bottom end is crimped onto the first precision load cell 22. In this embodiment, the error analysis of the data monitored by the first precision load cell can be performed by the external intelligent circuit, so that when used as the kitchen electronic scale, the accurate value of the weight of the object carried on the carrier board is obtained.

In this embodiment, the tubular support wall in the force guiding member is provided with a notch 421 in order to leave sufficient space for the deformation of the elastic rod.

By selecting a suitable elastic rod, the embodiment can ensure that the weight of the load plate of the load plate is higher than the force support portion of the force guide member when the weight of the object is less than 20 kg in the free state and on the carrier; When the weight of the carrying object is greater than 20 kg, the book

The carrier plate is crimped onto the force guiding member; when the elastic rod is deformed by force, the anti-skid sliding portion reciprocates in the limiting chute, so that the embodiment maintains a stable state.

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or variations of the various forms may be made by those skilled in the art based on the above description. There is no need and no way to exhaust all of the implementations. Obvious changes or variations which are obvious to the spirit of the invention are still within the scope of the invention.

Claims

Claim

What is claimed is: 1. An electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate; characterized by: further comprising a second precision scale for supporting the carrier plate and the first precision weighing component a heavy component, and a force guiding member for transmitting the pressure applied to the second precision weighing component; the first precision weighing component comprises an elastic supporting member; the guiding member is provided with a guiding support portion on the carrier plate The guiding pressure crimping portion is provided; when the carrier plate does not carry the object, the guiding crimping portion of the loading plate is higher than the guiding support portion of the guiding member; when the carrier plate carries the object, the loading plate is pressed downward The elastic support member is moved downward, and after the load plate is subjected to a certain degree of force, the conductive crimping portion is crimped onto the force guiding portion of the force guiding member.

2. The electronic scale according to claim 1, wherein: the conductive crimping portion of the carrier plate is forced downwardly until being crimped onto the conductive support portion of the force guiding member, and the elastic supporting member is at Elastic deformation state.

3. An electronic scale comprising a carrier plate, a first precision weighing component for supporting the carrier plate, and characterized by: further comprising a second precision scale for supporting the carrier plate and the first precision weighing component a weight assembly, and a force guiding member for transmitting the pressure applied thereto to the second precision weighing component; the first precision weighing component comprises an elastic bearing member; the guiding member comprises a bearing bearing having a bearing hole as a guiding bearing portion The bottom wall of the carrier plate serves as a guiding crimping portion; each first precision weighing component passes through the corresponding supporting hole and is connected to the bottom wall of the carrier plate; when the carrier plate does not carry an object, the loading plate The guiding crimping portion is higher than the guiding support portion of the guiding member; when the carrier plate carries the object, the bottom wall of the loading plate is pressed downward to press the elastic supporting member and moves downward, and the loading plate is stressed to a certain extent Thereafter, the conductive crimping portion is crimped onto the force guiding portion of the force guiding member.

4. The electronic scale according to claim 3, wherein: the conductive crimping portion of the carrier plate is forced downwardly until being crimped onto the conductive support portion of the force guiding member, and the elastic supporting member is at Elastic deformation state.

5. An electronic scale comprising a carrier plate, a first precision weighing component for supporting the carrier plate, and characterized by: further comprising a second precision scale for supporting the carrier plate and the first precision weighing component a heavy component, and a force guiding member for transmitting the pressure received by itself to the second precision weighing component; the first precision weighing component comprises an elastic support member and a first precision load cell; the second precision weighing component comprises The second precision measuring force sensor; the guiding member is provided with a guiding support portion, and the guiding plate is provided with a guiding crimping portion; the carrier plate is crimped on the elastic supporting member, and the elastic supporting member is crimped at the first On the precision load cell, the first precision load cell is directly crimped on the second precision load cell or crimped on the force guide; when the carrier plate does not carry an object, the force plate of the carrier plate is crimped The portion is higher than the guiding support portion of the guiding member; when the carrier plate carries the object, the carrier plate is pressed downward to press the elastic supporting member and moves downward, and after the force receiving plate is subjected to a certain degree, the guiding force crimping portion is The pressure is supported on the force guiding portion of the force guiding member.

The electronic scale according to claim 5, wherein the second precision weighing assembly further comprises a support leg for supporting the second precision load cell, and the bottom end of the support leg is the lowest end of the electronic scale.

7. An electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate, and characterized by: a second precision scale for supporting the carrier plate and the first precision weighing component Heavy components, and used to transfer the pressure they are subjected to

The claim is given to the second precision weighing component; the first precision weighing component comprises an elastic bearing and a first precision load cell; the second precision weighing component comprises a second precision load cell; a guiding support portion is arranged on the loading plate, and a guiding crimping portion is arranged on the loading plate; the carrier plate is pressure-bonded on the first precision load cell, and the first precision load cell is pressure-bonded on the elastic supporting member. The elastic supporting member is directly press-fitted on the second precision load cell or is crimped on the force guiding member; when the carrier plate does not carry the object, the guiding pressure-bonding portion of the carrier plate is higher than the guiding force of the guiding member When the carrier plate carries the object, the carrier plate is pressed down to press the elastic support member and moves downward, and after the force receiving plate is subjected to a certain degree, the guiding force pressing portion is pressed against the guiding force of the guiding member. On the support.

The electronic scale according to claim 7, wherein: the second precision weighing assembly further comprises a support leg for supporting the second precision load cell, and the bottom end of the support leg is the lowest end of the electronic scale.

9. An electronic scale comprising a carrier plate, a first precision weighing assembly for supporting the carrier plate; characterized by: further comprising a second precision scale for supporting the carrier plate and the first precision weighing component a heavy component, and a force guiding member for transmitting the pressure applied thereto to the second precision weighing component; the first precision weighing component comprises an elastic support member and a first precision load cell; the elastic support member comprises a thread spring, the setting An upper support member at the top end of the threaded spring and a lower support member disposed at the bottom end of the threaded spring; the second precision weighing assembly includes a second precision load cell; the guide member is provided with a force support portion, and the load plate is provided a force guiding crimping portion; the elastic supporting member is disposed above or below the first precision load cell; and when the elastic supporting member is disposed above the first precision load cell, the carrier plate is crimped on the upper support member, The support member is crimped and disposed on the first precision load cell, and the first precision load cell is pressure-bonded on the second precision load cell; when the elastic support member is disposed at the first precision force measurement When the sensor is under the sensor, the carrier plate is crimped on the first precision load cell, the first precision load cell is crimped on the upper support member, and the lower support member is crimped on the second precision load cell; When the carrier plate does not carry an object, the guiding crimping portion of the loading plate is higher than the guiding support portion of the guiding member; when the carrier plate carries the object, the carrier plate is pressed downward to press the elastic supporting member and move downwards, After the force plate is subjected to a certain degree of force, the conductive crimping portion is crimped onto the force guiding portion of the force guiding member.

10. The electronic scale according to claim 9, wherein: the guide crimping portion of the carrier plate is forced downwardly until being crimped onto the conductive support portion of the force guiding member, and the threaded spring is elastic Deformation state.