CN105953898B - Adjustable double-step double-precision weighing sensor - Google Patents
Adjustable double-step double-precision weighing sensor Download PDFInfo
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- CN105953898B CN105953898B CN201610096281.4A CN201610096281A CN105953898B CN 105953898 B CN105953898 B CN 105953898B CN 201610096281 A CN201610096281 A CN 201610096281A CN 105953898 B CN105953898 B CN 105953898B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/23—Support or suspension of weighing platforms
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Abstract
The invention discloses an adjustable double-step double-precision weighing sensor which comprises a mounting seat, a first precision weighing sensor, a second precision weighing sensor, supporting legs, an elastic supporting piece and an adjusting mechanism for adjusting the height of the elastic supporting piece, wherein the mounting seat is provided with a first positioning hole; the mounting seat is provided with a mounting plate part and a force guiding supporting part for transmitting the pressure borne by the mounting seat to the mounting plate part; the elastic supporting piece, the first precision weighing sensor, the mounting plate part, the second precision weighing sensor and the supporting legs are arranged in a compression joint mode in sequence; the top end of the elastic supporting part is higher than the top end of the force guiding supporting part in a free state, and the top end of the elastic supporting part moves downwards when bearing pressure. The invention has double-order continuous measuring range and different precision values in each order of measuring range.
Description
Technical Field
The invention belongs to the technical field of weighing sensor structural design, and particularly relates to an adjustable double-step double-precision weighing sensor.
Background
The electronic weighing scale on the market at present mainly comprises a loading plate, a display screen, an adjusting button, a power supply module and a weighing sensor for supporting the loading plate, and the electronic weighing scale has the functions of mainly weighing a human body, wherein the display screen generally starts to display numerical values when the weight of a loaded object exceeds a preset value, and the preset value is generally 5 kilograms; in addition, the maximum measuring range of the electronic weighing scale is generally 180 kilograms, the precision value is only 100 grams, and the error is large, so the traditional electronic weighing scale can not be basically used for other purposes except weighing the weight in a flat day, and particularly can not be used as an electronic weighing scale in a kitchen. The precision value of the existing kitchen electronic scale can reach 1 g or even less, but the measuring range of the existing kitchen electronic scale does not exceed 10 kg generally, so the existing kitchen electronic scale cannot be used as a weight scale.
Disclosure of Invention
The invention aims to provide an adjustable double-order double-precision weighing sensor with double-order continuous measuring ranges and different precision values in each measuring range.
The technical scheme for realizing the purpose of the invention is as follows: an adjustable double-step double-precision weighing sensor comprises a mounting seat, a first precision weighing sensor, a second precision weighing sensor, supporting legs, an elastic supporting piece and an adjusting mechanism for adjusting the height of the elastic supporting piece; the mounting seat is provided with a mounting plate part and a force guiding supporting part for transmitting the pressure borne by the mounting seat to the mounting plate part; the elastic supporting piece, the first precision weighing sensor, the mounting plate part, the second precision weighing sensor and the supporting legs are arranged in a compression joint mode in sequence; the elastic support comprises an upper support, a spring and a lower support; the upper end of the spring is abutted against the upper supporting piece, the lower end of the spring is abutted against the lower supporting piece, and the lower supporting piece is arranged on the first precision weighing sensor in a compression joint mode; the bottom wall of the upper support is provided with a force guide pressure connection part which is higher than the top end of the force guide support part in a free state; the outer peripheral wall of the upper support part is provided with a convex stopping part, and the outer peripheral wall of the force guiding support part is provided with an external thread area; the adjusting mechanism comprises an adjusting gland and an elastic gasket; the upper end of the adjusting gland is provided with an annular anti-falling crimping part, the inner wall of the lower end is provided with an internal thread area matched with the external thread area of the force guide supporting part, and the middle end is provided with a crimping surface; the adjusting gland presses the elastic gasket on the top end of the force guiding supporting part through the pressing surface, the anti-falling pressing part is sleeved on the outer wall of the upper supporting part above the stopping part, and the anti-falling pressing part is pressed on the stopping part under the action of the elastic force of the spring in a free state.
In the above solution, the aperture of the central through hole of the elastic gasket is larger than the outer diameter of the stop portion of the upper support member; under the action of external force, the stopping part slides up and down between the anti-falling press-connection part and the top end of the force guiding support part; when the upper support part bears the pressure and is stressed to the preset degree, the force guide pressure connection part moves downwards to be in pressure joint on the force guide support part.
In the above scheme, the aperture of the central through hole of the elastic gasket is smaller than the outer diameter of the stop part of the upper supporting part; under the action of external force, the stopping part slides up and down between the anti-falling press-connection part and the top wall of the elastic gasket; when the upper supporting part bears the pressure and is stressed to the preset degree, the force guide pressing part moves downwards to be pressed on the elastic gasket.
In the above scheme, the range of the first precision weighing sensor is smaller than the range of the second precision weighing sensor.
When the invention is used for weighing in the first-order measuring range, namely when the force guide pressure joint part is not moved down to be pressed on the force guide support part, although the first precision weighing sensor and the second precision weighing sensor are stressed simultaneously, the first precision weighing sensor can be used for measuring the weight independently, namely, an external display screen only displays the data measured by the first precision weighing sensor, the precision value of the first precision weighing sensor is the precision value of the first precision weighing sensor, and generally higher precision is adopted, for example, the precision value is 1 gram or less; when weighing in the second measuring range, namely when the force guide pressure joint part moves down to be pressed on the force guide support part, although the first precision weighing sensor and the second precision weighing sensor are stressed at the same time, the second precision weighing sensor can be used for measuring the weight independently, namely, an external display screen only displays the data measured by the second precision weighing sensor, the precision value of the second precision weighing sensor is the precision value of the second precision weighing sensor, and lower precision is generally adopted, for example, the precision value is 100 g or more; in addition, when the weighing device is used for weighing within the second-order range, the force guide pressing part moves downwards to be pressed on the force guide supporting part, the deformation of the spring is not increased, namely, the pressure applied to the first precision weighing sensor is not increased, so that the first precision weighing sensor is effectively protected and cannot be damaged due to overweight bearing; in addition, the spring is selected as the core of the elastic supporting part, and the proper spring is selected to ensure that the proper gap distance is formed between the force guide pressing part and the force guide supporting part, so that the processing precision requirements on the mounting seat and the elastic supporting part can be reduced, and the comfort in use can be ensured.
Drawings
FIG. 1 is a schematic diagram of a first configuration of the present invention in a first-order range weighing state;
FIG. 2 is a schematic diagram of the dual-step dual-precision load cell of FIG. 1 in a second-range weighing state;
FIG. 3 is a schematic perspective view of the dual-stage dual-precision load cell of FIG. 1;
FIG. 4 is an exploded view of the dual-stage dual-precision load cell of FIG. 3;
FIG. 5 is an exploded view of the dual-stage dual-precision load cell of FIG. 3 from another angle;
FIG. 6 is a schematic diagram of a second configuration of the present invention in a first-range weighing state;
FIG. 7 is a schematic diagram of the dual-step, dual-precision load cell of FIG. 6 in a second-range weighing state.
Detailed Description
(example 1)
The embodiment is an adjustable double-step double-precision weighing sensor, which is shown in fig. 1 to 5 and comprises a mounting seat 1, a first precision weighing sensor 2, a second precision weighing sensor 3, supporting feet 4, an elastic supporting part 5 and an adjusting mechanism 6 for adjusting the height of the elastic supporting part.
The mounting seat is provided with a mounting plate part 11 and a force guiding supporting part 12 for transmitting the pressure born by the mounting seat to the mounting plate part; elastic support, first precision weighing sensor, installation board portion, second precision weighing sensor, supporting legs crimping setting in proper order.
The installation board portion level sets up, is equipped with first cassette on the roof of installation board portion, is equipped with the second cassette on the diapire. The first clamping seat and the second clamping seat can enable the installation operation of the first precision weighing sensor and the second precision weighing sensor to be fast and convenient. The force guide support portion 12 of the mount is an annular boss formed to protrude upward from the mount plate portion, and the first card holder, the first precision weighing sensor, and the elastic support are disposed in a cavity 121 surrounded by the annular boss. The structure enables the force guide supporting part to enclose the elastic supporting part and the first precision weighing sensor, and has a certain protection effect on the elastic supporting part and the first precision weighing sensor, so that the elastic supporting part and the first precision weighing sensor are not easily interfered by external factors.
In the embodiment, the first precision force measuring sensor is a kitchen weighing sensor, the measuring range is 0-5 kg, and the precision value can reach 1 g; the first precision weighing sensor is provided with a first fixing part 21, a first bearing deformation part 22 and a first resistance strain gauge 23 which is arranged on the first bearing deformation part and used for detecting the deformation of the first bearing deformation part; specifically, the first fixing portion is in a rectangular frame shape formed by combining four sides, the first force-bearing deformation portion is in a Chinese character 'shan' shape formed by combining a bottom side and three straight sides perpendicular to the bottom side, the first force-bearing deformation portion is arranged in the rectangular frame of the first fixing portion, and the tail end of a central straight side of the three straight sides of the first force-bearing deformation portion is connected with the inner side wall of the middle end of one frame of the first fixing portion. The first fixing part is clamped and fixed in the first clamping seat; the first bearing deformation part is higher than the mounting plate part, and a space is reserved for deformation of the mounting plate part. This first precision weighing sensor's structural shape is comparatively reasonable, easily processes manufacturing through the punching press mode, and the cost is lower.
When the double-order double-precision weighing sensor is used for manufacturing an electronic scale, four double-order double-precision weighing sensors in the embodiment are generally needed, namely the weighing range of the first-order measuring range of the electronic scale manufactured by the embodiment is 0-20 kg, so that the daily requirement for weighing small objects can be met. However, for this embodiment, the first-order range is 0 to 5 kilograms since there is only one first-precision load cell.
The elastic support comprises an upper support 51, a spring 52 and a lower support 53; the upper end of the spring is abutted against the upper support, the lower end of the spring is abutted against the lower support, and the lower support is arranged on the first precision weighing sensor in a pressing mode. Specifically, the lower support member is press-fitted to the first force-bearing deformation portion, and the first fixing portion is snap-fitted to the first seat on the top wall of the mounting plate portion and press-fitted to the mounting plate portion. The top end 50 of the resilient support member is raised above the top end 120 of the force directing bearing portion in a free state, i.e., not under pressure, and the top end of the resilient support member, i.e., the top end of the upper support member, moves downward under pressure. The structure is convenient for processing, manufacturing, maintenance and replacement by arranging the upper supporting part, the spring and the lower supporting part in a split way.
In this embodiment, the lower support member is fixedly disposed on the first force-bearing deformation portion in a screw connection manner. Two first fastening holes 221 are formed in the first bearing deformation part; the bottom end of the lower support is provided with two fastening screw holes 531 fastened to the first fastening holes by two first screws 222. Specifically, two straight edges of the three straight edges of the first force-bearing deformation part, which are located at two sides of the central straight edge, are respectively provided with a first fastening hole 221. According to the structure, the lower supporting piece is directly fixed on the first bearing deformation part of the first precision weighing sensor, the lower supporting piece is pressed and connected with the first bearing deformation part, the first bearing deformation part is used for directly positioning the lower supporting piece, and the structure is simplified and reasonable.
In practical practice, it is also possible to fix the lower support member to the first precision weighing cell by means of anchoring, for example, by providing two downwardly projecting anchoring bosses on the bottom wall of the lower support member and two anchoring holes on the first force-bearing deformation portion, each anchoring boss passing through a respective one of the anchoring holes and then being anchored.
The top end of the lower supporting part is provided with an annular limiting groove 532 and a central limiting slide hole 533 positioned at the center of the annular limiting groove; an annular force guiding pressure connection part 511 matched with the force guiding support part and a limiting sliding column 512 protruding downwards and positioned in the center of the annular force guiding pressure connection part are arranged on the bottom wall of the upper support part; the limiting sliding column is positioned in the central limiting sliding hole of the lower supporting part and can slide up and down; after the bearing force of the lower bearing part is shifted down to a certain degree, the force guide pressing part is pressed on the force guide bearing part, the force guide bearing part further transmits the pressure born by the force guide pressing part to the installation plate part, and the installation plate part transmits the pressure to the second precision weighing sensor. This kind of structure is comparatively reasonable, can be better carry out accurate positioning to the spring, prevent its eccentric aversion, in addition, this kind of structure is particularly suitable for fast assembly and later maintenance change. In addition, the structure also makes full use of the performance advantages of the spring, and by selecting the proper spring, the gap between the upper support force guiding pressure-connecting part 511 and the force guiding support part top end 120 of the mounting seat in the free state can be in a proper size, generally preferably 1 mm to 5 mm, and preferably 2 mm to 3 mm, and an excessively large gap can give a remarkable falling feeling when a human body is weighed, because the force guiding pressure-connecting part at the moment needs to be moved down to be in pressure connection with the force guiding support part, namely, the whole gap size is moved down; an excessively small gap may require higher machining accuracy, increasing process difficulty and manufacturing cost.
The mount pad still is equipped with in the below of mounting plate portion and encloses the holding portion 13 that closes formation holding chamber 131, and this holding portion and mounting plate portion are integrative to be made, and second precision weighing sensor and supporting legs set up in this holding chamber, and this holding chamber is still stretched out downwards to the bottom of supporting legs. The advantage of this kind of structure is in can protecting second precision weighing sensor and supporting legs, prevents that external factors from disturbing it. In this embodiment, the force-guiding support portion, the mounting plate portion and the receiving portion are formed as a single piece, and in practical applications, they may be formed as separate pieces and finally assembled together.
In this embodiment, the second precision weighing sensor is a human body weighing sensor, the measuring range of the second precision weighing sensor is 0 kg to 50 kg, and the precision value is 100 g; the second precision weighing sensor is provided with a second fixing part 31, a second bearing deformation part 32 and a second resistance strain gauge 33 which is arranged on the second bearing deformation part and used for detecting the deformation of the second bearing deformation part. When the double-order double-precision weighing sensor is used for manufacturing an electronic scale, four double-order double-precision weighing sensors in the embodiment are generally needed, namely the weighing range of the second-order measuring range of the electronic scale manufactured by the embodiment is 0-200 kg, so that the requirement of weighing a human body can be met. However, for this embodiment, the second order span is 5 to 50 kilograms since there is only one second precision load cell.
In this embodiment, the second precision weighing sensor is similar to an inverse G shape, the second fixing portion is similar to a C shape, and the second force-bearing deformation portion is similar to a smaller C shape and connected to the second fixing portion to form an inverse G shape. First precision weighing sensor and second precision weighing sensor in this embodiment all are fit for manufacturing through punching press mode processing, are favorable to reducing manufacturing cost.
The second fixing part is clamped in a second clamping seat on the bottom wall of the mounting plate part, the second bearing deformation part is lower than the mounting plate part, a space is reserved for deformation of the mounting plate part, and meanwhile the second bearing deformation part is arranged at the top end of the supporting leg in a compression joint mode.
In this embodiment, the first precision weighing sensor and the second precision weighing sensor can also adopt force transducers which are widely circulated in the market and have lower price, so that the manufacturing cost is effectively reduced.
In this embodiment, the support legs are substantially cylindrical in shape, and rubber pads 41 are provided at the bottom ends thereof.
In this embodiment, the bottom center of the accommodating portion is provided with an opening at the bottom of the accommodating chamber, and the opening is provided with a sealing cover 15 for sealing the opening at the bottom of the accommodating chamber; the sealing cover comprises an inner cover area 152, an outer cover area 153 and a plurality of spiral elastic arms 154 connecting the inner cover area and the outer cover area, and a central circular hole 151 is formed in the center of the inner cover area; the bottom ends of the supporting legs extend downwards out of the central circular hole of the sealing cover, and the peripheral walls of the supporting legs are fixedly bonded with the inner wall of the central circular hole of the sealing cover. Because the spiral elastic arm can be made small enough, the structure can fully reduce the force transmission between the outer wall of the supporting leg and the mounting seat through the sealing cover, so that the error influence caused by the structure can be ignored to the precision in the second-order measuring range.
The cover 15 is used in cooperation with the accommodating portion to protect the second precision weighing sensor in the accommodating cavity well.
In this embodiment, the range of the first precision weighing sensor is smaller than the range of the second precision weighing sensor, that is, the maximum weighing value of the first precision weighing sensor is smaller than the maximum weighing value of the second precision weighing sensor, and by selecting a suitable spring and selecting a suitable distance between the force guide pressure part and the force guide supporting part, the pressure applied to the first precision weighing sensor can be limited within the range of the first precision weighing sensor, so that the first weighing sensor is prevented from being damaged due to overweight; the force limiting protection mode has the advantages that: since the elastic deformation of the strain-type load cell is very small, for example, the deformation height difference in the entire measuring range of the first precision load cell in this embodiment is calculated in micrometers, if the rigid support is used to replace the spring in this embodiment, the gap between the force-guiding pressure-connecting part of the upper support and the force-guiding support part of the mounting seat must also be measured in micrometers, which is really too high for the machining precision requirement, and is difficult to be realized industrially in consideration of the error in the material machining and molding and the material expansion change caused by the temperature difference; but if the spring is adopted to amplify the deformation, the processing precision requirement and the manufacturing cost can be effectively reduced.
When the upper support is in a free state, i.e., not under pressure, the top end 50 of the upper support is higher than the top end 120 of the force directing support; when the upper supporting part bears the pressure and is stressed, the upper supporting part moves downwards, when the bearing stress of the upper supporting part is smaller than 5 kilograms of force, namely in a first-order range, the force guide pressure connection part can not be in pressure connection with the supporting part when weighing in the first-order range, namely the upper supporting part bears all pressure, and the pressure is sequentially transmitted to the spring, the lower supporting part, the first precision weighing sensor, the mounting plate part, the second precision weighing sensor and the supporting leg; at the moment, the data measured by the first precision weighing sensor is displayed through an external central control circuit, and the precision value of the data can reach 1 gram; when the bearing stress of the upper supporting piece is less than 50 kgf and more than or equal to 5 kgf, namely within the second-order range, the force guide pressure connection part is pressed on the force guide supporting part, and the pressure borne by the spring is not increased any more, so that the first precision weighing sensor is effectively protected from being damaged by overweight; at the moment, in the specific practice, when the upper supporting part bears 5 kilograms of force, the force value may slightly change due to machining precision errors, but cannot exceed the maximum force bearing value of the first precision weighing sensor, so that the first precision weighing sensor cannot be damaged and is sequentially transmitted to the spring, the lower supporting part, the first precision weighing sensor, the mounting plate part, the second precision weighing sensor and the supporting leg; the rest pressure is transmitted to the mounting plate part, the second precision weighing sensor and the supporting legs in sequence through the force guide supporting part; the data measured by the second precision weighing sensor is displayed through the central control circuit, and the precision value of the data is only 100 grams.
The structural design of the embodiment is reasonable, the requirement on machining precision can be reduced, and the manufacturing cost and the process difficulty are reduced; in addition, the first precision weighing sensor can be effectively prevented from being damaged due to overweight; in addition, the outer wall of the mounting seat of the embodiment is provided with a clamping mounting part 14 for mounting the whole body of the mounting seat, and the mounting seat can be integrally clamped on an external plastic base during assembly, so that the operation is simple, convenient and fast.
In this embodiment, a convex stopping portion 513 is disposed on the outer peripheral wall of the upper support, and an external thread area 122 is disposed on the outer peripheral wall of the force guiding support; the adjusting mechanism comprises an adjusting gland 61 and an elastic gasket 62; the upper end of the adjusting gland is provided with an annular anti-falling pressing part 611, the inner wall of the lower end is provided with an internal thread area 612 matched with the external thread area of the force guide supporting part, and the middle end is provided with a pressing surface 613; the adjusting gland presses the elastic gasket on the top end of the force guide supporting part through the pressing surface, the anti-falling pressing part is sleeved on the outer wall of the upper supporting part above the stopping part, and the anti-falling pressing part is pressed on the stopping part under the action of the elastic force of the spring in a free state; under the action of external force, the stopping part can slide up and down between the anti-falling press-connection part and the top end of the force guiding support part.
In this embodiment, the hole diameter of the central through hole of the elastic washer 62 is larger than the outer diameter of the stopping portion 513 of the upper support member, so as not to affect the up-and-down movement of the upper support member; in a practical embodiment, the hole diameter of the central through hole of the elastic washer 62 may be made smaller than the outer diameter of the stopper 513 of the upper support, but if this structure is adopted, the stopper 513 slides up and down between the anti-falling press-connection part 611 and the top wall of the elastic washer 62, and the force-guiding press-connection part of the upper support does not move down to be directly pressed against the force-guiding support part of the mounting seat, but moves down to be pressed against the elastic washer.
The advantages of this structure are: in specific practice, the consistency of the spring 52 in the elastic part is difficult to guarantee, and as the human body scale and the kitchen scale generally adopt four double-step double-precision weighing sensors at the same time, the spring with the consistency difficult to guarantee can cause the heights of the four weighing sensors to be slightly different, so that the assembly and the use are influenced, and even when a user takes up the electronic scale for observation, the bottom ends of the supporting legs are not on the same plane, so that the appearance is extremely unattractive; this embodiment adopts adjustment mechanism to adjust elastic support's overall height, can make this embodiment even adopt the slightly bigger spring of error, also only need to rotate the regulation gland to the position, can guarantee the uniformity of overall height. In addition, the elastic gasket is used for preventing the adjusting gland from loosening, and the overall height can be adjusted by selecting the elastic gaskets with different heights or adjusting the gap between the force guiding pressure connecting part of the upper supporting part and the force guiding supporting part of the mounting seat so as to meet the requirements of different occasions.
(example 2)
This example is substantially the same as example 1, except that: as shown in fig. 6 and 7, a fixed contact 123 is disposed at the top end of the force-guiding supporting portion, and a movable contact 514 adapted to the fixed contact is disposed at the force-guiding pressing portion of the upper supporting member; when the force guide pressure connection part is in pressure connection with the force guide supporting part, the moving contact is in pressure connection with the static contact, and the moving contact and the static contact are electrically connected. In specific practice, when the moving contact is in electric contact with the fixed contact, an electric signal is generated to the connected and externally connected central control circuit, and when the central control circuit receives the signal, data measured by the second precision weighing sensor is displayed on the display screen; when the central control circuit does not receive the signal, displaying the data measured by the first precision weighing sensor on the display screen; that is to say, the combination of the movable contact and the static contact can be used as a signal change-over switch for automatically changing display data of a display screen. In specific practice, other structures, such as reed pipes, proximity switches and the like can be adopted to replace the movable and static contact combination.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.
Claims (4)
1. An adjustable double-step double-precision weighing sensor comprises a mounting seat, a first precision weighing sensor, a second precision weighing sensor and supporting legs; the method is characterized in that: the device also comprises an elastic supporting piece and an adjusting mechanism for adjusting the height of the elastic supporting piece; the mounting seat is provided with a mounting plate part and a force guiding supporting part for transmitting the pressure borne by the elastic supporting part to the mounting plate part; the elastic supporting piece, the first precision weighing sensor, the mounting plate part, the second precision weighing sensor and the supporting legs are arranged in a compression joint mode in sequence; the elastic support comprises an upper support, a spring and a lower support; the upper end of the spring is abutted against the upper supporting piece, the lower end of the spring is abutted against the lower supporting piece, and the lower supporting piece is arranged on the first precision weighing sensor in a compression joint mode; the bottom wall of the upper support is provided with a force guide pressure connection part which is higher than the top end of the force guide support part in a free state; the outer peripheral wall of the upper support part is provided with a convex stopping part, and the outer peripheral wall of the force guiding support part is provided with an external thread area; the adjusting mechanism comprises an adjusting gland and an elastic gasket; the upper end of the adjusting gland is provided with an annular anti-falling crimping part, the inner wall of the lower end is provided with an internal thread area matched with the external thread area of the force guide supporting part, and the middle end is provided with a crimping surface; the adjusting gland presses the elastic gasket on the top end of the force guiding supporting part through the pressing surface, the anti-falling pressing part is sleeved on the outer wall of the upper supporting part above the stopping part, and the anti-falling pressing part is pressed on the stopping part under the action of the elastic force of the spring in a free state.
2. The adjustable dual-stage dual-precision load cell of claim 1, wherein: the aperture of the central through hole of the elastic gasket is larger than the outer diameter of the stopping part of the upper supporting part; under the action of external force, the stopping part slides up and down between the anti-falling press-connection part and the top end of the force guiding support part; when the upper support part bears the pressure and is stressed to the preset degree, the force guide pressure connection part moves downwards to be in pressure joint on the force guide support part.
3. The adjustable dual-stage dual-precision load cell of claim 1, wherein: the aperture of the central through hole of the elastic gasket is smaller than the outer diameter of the stopping part of the upper supporting part; under the action of external force, the stopping part slides up and down between the anti-falling press-connection part and the top wall of the elastic gasket; when the upper supporting part bears the pressure and is stressed to the preset degree, the force guide pressing part moves downwards to be pressed on the elastic gasket.
4. The adjustable dual-stage dual-precision load cell of claim 1, wherein: the range of the first precision load cell is less than the range of the second precision load cell.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6484647B2 (en) * | 1998-10-02 | 2002-11-26 | Virco Mgmt. Corporation | Office furniture system |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2874442Y (en) * | 2006-01-24 | 2007-02-28 | 中山市创源电子有限公司 | Sensor and electronic scale mounted with such sensor |
| CN201246433Y (en) * | 2007-10-28 | 2009-05-27 | 辽宁同泽减震器有限公司 | Harmonic tremor peak-avoiding vibration damper |
| BRMU8901408Y1 (en) * | 2009-06-10 | 2017-11-21 | Electrolux Do Brasil Sa | LEVELING LEVELS FOR APPLIANCES |
| CN201716099U (en) * | 2010-07-06 | 2011-01-19 | 颜海君 | Novel electronic scale |
| CN101865235B (en) * | 2010-07-07 | 2012-01-04 | 南京捷诺环境技术有限公司 | Vibration isolation buffer for resisting strong impact |
| CN102980689A (en) * | 2012-11-29 | 2013-03-20 | 昆山洺九机电有限公司 | Overload-proof load sensor |
| CN103024112A (en) * | 2012-12-31 | 2013-04-03 | 温州市海宝仪器有限公司 | Method for weighing by cellphone and cellphone electronic scale |
| CN203249680U (en) * | 2013-05-07 | 2013-10-23 | 深圳市汇思科电子科技有限公司 | Electronic scale |
| CN103462395A (en) * | 2013-09-05 | 2013-12-25 | 常熟市三新红木家具厂 | Height-adjustable rosewood chair |
| CN203772374U (en) * | 2014-03-13 | 2014-08-13 | 杭州德利时传感器技术有限公司 | Four-corner sensing-type electronic platform scale |
| WO2016011625A1 (en) * | 2014-07-23 | 2016-01-28 | 王雅苹 | Electronic scale |
| CN204260220U (en) * | 2014-11-06 | 2015-04-15 | 上海理工大学 | Device legs arrangement for adjusting height |
-
2016
- 2016-01-20 CN CN201610096281.4A patent/CN105953898B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6484647B2 (en) * | 1998-10-02 | 2002-11-26 | Virco Mgmt. Corporation | Office furniture system |
Non-Patent Citations (1)
| Title |
|---|
| 《西德OPTON"万工显"内螺纹与高度测量装置光路的调整》;黄庆云;《计测技术》;19901231;全文 * |
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