CN105953894A - Intelligent dual-precision weighting sensor - Google Patents
Intelligent dual-precision weighting sensor Download PDFInfo
- Publication number
- CN105953894A CN105953894A CN201610096247.7A CN201610096247A CN105953894A CN 105953894 A CN105953894 A CN 105953894A CN 201610096247 A CN201610096247 A CN 201610096247A CN 105953894 A CN105953894 A CN 105953894A
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- China
- Prior art keywords
- load cells
- precision
- precision load
- mounting seat
- supporting part
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Classifications
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/62—Over or under weighing apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G21/00—Details of weighing apparatus
- G01G21/23—Support or suspension of weighing platforms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
- G01G3/14—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing measuring variations of electrical resistance
- G01G3/1402—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
Abstract
The present invention discloses an intelligent dual-precision weighting sensor. The sensor comprises a first soleplate, a first precision weighting sensor, a second soleplate, a second precision weighting sensor and an elastic supporting piece which are crimped in order. The elastic supporting piece includes an upper support piece, a spring and a lower support piece; the top of the spring is abutted against the upper support piece, and the bottom of the elastic supporting piece is abutted against the lower support piece; the second soleplate is provided with a guiding force crimping part, and the lower support piece is provided with a guiding force support part; the guiding force support part is provide with a static contact, and the guiding force crimping part is provided with a moving contact; in the free state, the guiding force crimping part is higher than the guiding force support part; when the second soleplate is pressed, the second precision weighting sensor compresses the spring to drive the movement of the guiding force crimping part downwards; when the second soleplate is pressed, the guiding force crimping part is move downwards onto the guiding force support part; and the moving contact is crimped and arranged on the static contact. The intelligent dual-precision weighting sensor has dual-order continuous range and has different precision values in each-order range.
Description
Technical field
The invention belongs to load cell structure design field, be specifically related to a kind of intelligent double precision weighing and sensing
Device.
Background technology
Body weight electronic scale in the market, its structure mainly includes support board, display screen, regulation button, power module
With the LOAD CELLS composition for supporting support board, its function is mainly used in human body of weighing, and is usually when carrying object
After weight exceedes preset value, display screen just starts to show numerical value, and this preset value is usually 5 kilograms；It addition, this kind of body weight
The maximum range of electronic scale is usually 180 kilograms, and accuracy value only has 100 grams, and error is relatively big, so this traditional body
Weight electronic balancer, on ordinary days in addition to weighing in, substantially cannot function as its use, especially cannot be used for as electronic scale
With.And existing electronic scale, its accuracy value can reach 1 gram the least, but its range is usually no more than 10
Kilogram, use so cannot function as scale.
Summary of the invention
It is an object of the invention to provide a kind of intelligence that there is the continuous range in double rank and there is in the range of each rank different accuracy value
Can type double precision LOAD CELLS.
The technical scheme realizing the object of the invention is: a kind of intelligent double precision LOAD CELLS, including crimping setting successively
The first mounting seat, the first precision LOAD CELLS, the second mounting seat, the second precision LOAD CELLS and elastic supporting piece；
Elastic supporting piece includes upper supporting part, spring and lower supporting part, and the top of spring is connected on upper supporting part, elastic bearing
The bottom of part is connected on lower supporting part；Second mounting seat is provided with leads power pressure contact portion, and lower supporting part is provided with leads power support；
The power support of leading is provided with static contact, and the power pressure contact portion of leading is provided with moving contact；Under free state, the power pressure contact portion of leading exceeds
Lead power support；By the second precision LOAD CELLS compression spring during the second mounting seat pressure-bearing stress, and then power is led in drive
Pressure contact portion moves down, when the second mounting seat pressure-bearing stress is to predeterminable level, lead defeat connect subordinate move to be crimped on lead power supporting
In portion, moving contact crimps therewith and is arranged on static contact.
In such scheme, the range of the first precision LOAD CELLS is more than the range of the second precision LOAD CELLS.
When the present invention weighs in the first rank range, namely the power pressure contact portion of leading not yet is displaced downwardly to be crimped on and leads on power support
Time, although the first precision LOAD CELLS and the second precision LOAD CELLS stress simultaneously, but the second precision can be utilized to claim
The independent check weighing of weight sensor, namely externally connected with display screen only shows the data that the second precision LOAD CELLS measures, its accuracy value
Being the accuracy value of the second precision LOAD CELLS, general use higher precision, such as accuracy value is 1 gram or less；
When weighing in the second range, namely lead to defeat and meet subordinate and move to be crimped on when leading on power support, although the first precision claims
Weight sensor and the second precision LOAD CELLS stress simultaneously, but the first independent check weighing of precision LOAD CELLS can be utilized,
Namely externally connected with display screen only shows the data that the first precision LOAD CELLS measures, its accuracy value is the second precision weighing and sensing
The accuracy value of device, general uses relatively low precision, and such as accuracy value is 100 grams or bigger；It addition, the present invention is
When weighing in second order range ability, now leading to defeat meeting subordinate and move to be crimped on and lead on power support, spring deformation no longer increases
Add, namely the pressure being applied on the second precision LOAD CELLS is not further added by, thus effectively protect the second precision to weigh biography
Sensor so that it is will not damage because load is overweight；Additionally, the present invention by select spring as the core of elastic supporting piece,
Can make to lead power pressure contact portion by selecting suitable spring and lead there is between power support suitable clearance distance, can
Reduce the second mounting seat and the requirement on machining accuracy of elastic supporting piece, can guarantee that again comfort during use.
Accompanying drawing explanation
Fig. 1 is that the first structure of the present invention is in the first rank range and weighs a kind of structural representation of state；
Fig. 2 is that double precision LOAD CELLS shown in Fig. 1 is in second-order range and weighs a kind of structural representation of state；
Fig. 3 is the first precision LOAD CELLS and a kind of explosive view of the first screw in double precision LOAD CELLS shown in Fig. 1；
Fig. 4 is the first precision LOAD CELLS shown in Fig. 3 and first screw a kind of explosive view when another angle is observed；
Fig. 5 is the second precision LOAD CELLS and a kind of explosive view of upper supporting part in double precision LOAD CELLS shown in Fig. 1；
Fig. 6 is the second precision LOAD CELLS shown in Fig. 5 and the upper supporting part a kind of explosive view when another angle is observed；
Fig. 7 is that the third structure of the present invention is in the first rank range and weighs a kind of structural representation of state；
Fig. 8 is that double precision LOAD CELLS shown in Fig. 7 is in second-order range and weighs a kind of structural representation of state；
Fig. 9 is the first precision LOAD CELLS and a kind of explosive view of capping in double precision LOAD CELLS shown in Fig. 7；
Figure 10 is the first precision LOAD CELLS shown in Fig. 9 and the capping a kind of explosive view when another angle is observed.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of double precision LOAD CELLS, as shown in Fig. 1 to Fig. 6, including crimping the first of setting successively
Mounting seat the 1, first precision LOAD CELLS the 2, second mounting seat the 3, second precision LOAD CELLS 4, elastic supporting piece
5 and for regulating the governor motion 6 of elastic supporting piece whole height；Elastic supporting piece includes upper supporting part 51, thread bullet
Spring 52 and lower supporting part 53.The top of spring is connected on upper supporting part, and the bottom of elastic supporting piece is connected to lower support
Part；Lower supporting part is provided with leads power support 531.
The diapire of the first mounting seat is provided with the first deck 11, and the roof of the first mounting seat has a plane, is used for boning
It is fixed on the diapire of external support board；First precision LOAD CELLS is provided with first fixed part the 21, first load deformations
22 and the first resistance strain gage 23 of being arranged in the first load deformations, the first resistance strain gage can be the first load
The deformation produced during deformations pressure-bearing stress is converted into the signal of telecommunication；First fixed part clamping is arranged in the first deck, this
Clamping arranges the assembly operation that can simplify the first precision LOAD CELLS；Second mounting seat is provided with leads power pressure contact portion 31 He
Mounting plate portion 32, mounting plate portion is horizontally disposed with, and the power pressure contact portion of leading is the annular boss being downwardly projected formation from mounting plate portion,
The center of mounting plate portion diapire is provided with the second deck 33；Second precision LOAD CELLS be provided with the second fixed part 41,
Two load deformations 42 and the second resistance strain gage 43 being arranged in the second load deformations, the second resistor disc is used for handle
The deformation of the second load deformations is converted into the signal of telecommunication；Second fixed part clamping is arranged in the second deck；First precision claims
First load deformations crimping of weight sensor is arranged in the mounting plate portion of the second mounting seat, the second precision LOAD CELLS
Second load deformations crimping be arranged on upper supporting part.The existence of the first deck and the second deck is so that first is smart
The installation of degree LOAD CELLS and the second precision LOAD CELLS operates more rapid and convenient.
In the present embodiment, the second precision force cell is LOAD CELLS for kitchen use, and its range is 0 to 5 kilogram, essence
Angle value can reach 1 gram, for the present embodiment, using the scope of weighing of 0 kilogram to 5 kilogram as the of the present embodiment
Single order range；Specifically, the shape of described second fixed part be by four edges combination formed rectangular box-like, second holds
The shape of power deformations is to be combined, by two bases and three straight flanges arranging with this base vertical, " mountain " font formed,
Second load deformations is arranged in the rectangle frame of the second fixed part, in three straight flanges of described second load deformations in
The inner side edge wall of the end of heart straight flange and a frame middle-end of the second fixed part is connected.This second precision LOAD CELLS
Planform is relatively reasonable, it is easy to by impact style processing and manufacturing, and cost is relatively low.
When being used for manufacturing electronic scale, it is generally required to the double precision LOAD CELLS described in four the present embodiment, its finished product
First rank range is 0 to 20 kilogram, can meet the demand that daily small articles is weighed.
In the present embodiment, the first precision LOAD CELLS is human body weighing's sensor, and its range is 0 kilogram to 50 kilograms,
Accuracy value is 100 grams, for the present embodiment, using the scopes of weighing of 5 kilograms to 50 kilograms as the present embodiment
Second-order range；When being used for manufacturing electronic scale, it is generally required to the double precision LOAD CELLS described in four the present embodiment,
The second-order range of its finished product is 20 to 200 kilograms, can meet the demand of human body weighing.
In the present embodiment, the first precision LOAD CELLS is structurally similar to the second precision LOAD CELLS, but at chi
On the thickness of very little and used sheet material bigger than the first precision LOAD CELLS.Specifically, the shape of described first fixed part is
By four edges combination formed rectangular box-like, the shape of the first load deformations be by a base and with this base vertical
" mountain " font that three the straight flange combinations arranged are formed, the first load deformations is arranged in the frame of the first fixed part, institute
State the interior of the end of center straight flange in three straight flanges of the first load deformations and a frame middle-end of the first fixed part
Side wall is connected.The first precision LOAD CELLS and the first precision LOAD CELLS in the present embodiment are suitable for passing through punching press
Mode processing and manufacturing, advantageously reduces manufacturing cost.It addition, first precision LOAD CELLS used and the in the present embodiment
Two precision LOAD CELLSs may be used without the force cell the most widely circulated and price is the cheapest, thus effectively
Reduce manufacturing cost.
In the present embodiment, the first load deformations is provided with two the first fastener holes 221, the mounting plate portion of the second mounting seat
Roof be provided with two and the adaptive fastening screws of the first fastener hole, the first load deformations is by adaptive with fastening screw
Two the first screws 24 be spirally connected on the roof being fixed on mounting plate portion.Specifically, described first load deformations three
Two straight flanges being positioned at straight flange both sides, center in bar straight flange, are respectively provided with first fastener hole 221；Two the first screws
It is rotated with after corresponding first fastener hole in corresponding fastening screw, thus being spirally connected of mounting plate portion is fixed on first
On the diapire of load deformations.This structure, while realizing the first load deformations crimping mounting plate portion, also utilizes the
One load deformations direct location and installation plate portion, its structure more simplifies compact.In concrete practice, it is possible to by being anchored
Mode is anchored in the top of mounting plate portion on the diapire of the first load deformations, such as, arrange on the roof of mounting plate portion
Two anchor boss protruding upward, arrange two anchor holes in the first load deformations, and each boss that is anchored is through corresponding one
After individual anchor hole, anchor processes, and this anchor mode is also effective and feasible.
In the present embodiment, the roof of upper supporting part is spirally connected by two the second screws 44 and is arranged on the second load deformations
On diapire；Specifically, the top of upper supporting part is provided with two installation screws 514, and the second load deformations is provided with two
Individual second fastening 421；The top of upper supporting part is directly anchored to the by second screws 44 of two with installation screw adaptation
On the diapire of two load deformations.In the present embodiment, described three straight flanges of second load deformations are positioned at center straight flange
Two straight flanges of both sides, are respectively provided with second fastener hole.Certainly, described upper supporting part also can be fixed by anchor mode
It is arranged on the diapire of the second load deformations.Such as, the roof of upper supporting part is arranged two anchors protruding upward
Boss, after each anchor boss passes corresponding second fastener hole, then carries out anchoring process.This structure is realizing second
While load deformations crimping upper supporting part, also utilizing the second load deformations directly to position upper supporting part, its structure is relatively
Compact for simplifying.
The periphery wall on upper supporting part top is provided with the annular pressure contact portion 511 of evagination, and the bottom of upper supporting part is provided with spacing cunning
Post portion 512；The basic configuration of lower supporting part is discoideus, and the center is provided with the pipe with sliding chamber projecting upwards formation
Shape boss 532；Spring housing is located on tube shape bulge, and the top of spring is connected on the annular pressure contact portion of upper supporting part；On
The spacing traveller portion 512 of supporting member can slide up and down in the sliding chamber of tube shape bulge 532, namely plays guide effect.Lead
Having the annular bearing surface adaptive with leading power pressure contact portion on the roof of power support, tube shape bulge is positioned at this annular bearing surface
Center.
In the present embodiment, lead power pressure contact portion and mounting plate portion is made into integration, and enclose formation one cavity, the second deck, the
Two precision LOAD CELLSs and upper supporting part are respectively positioned in this cavity.The advantage of this structure is to claim the second precision
Weight sensor and upper supporting part are protected, and prevent extraneous factor from disturbing it.In concrete practice, it is possible to will lead
Power pressure contact portion and mounting plate portion each make split part, are finally assemblied at together, are also feasible.
Under free state, the power pressure contact portion of leading exceeds leads power support；When the second mounting seat pressure-bearing stress by the second precision
LOAD CELLS compression spring, so drive lead defeat connect subordinate move, when the second mounting seat pressure-bearing stress is to predeterminable level,
Lead to defeat and meet subordinate and move to be crimped on and lead on power support.
This relatively reasonable in structure, preferably spring can be accurately positioned, prevent its eccentric displacement, it addition, this
Plant structure to be especially suitable for quickly assembling and later maintenance replacing.Additionally, the performance that this structure is also fully utilized by spring is excellent
Gesture, by selecting suitable spring, so that during free state, the bottom of power of the leading pressure contact portion of the second mounting seat with under
The gap on power of the leading support top of supporting member is in suitably sized, it is generally preferable to be 1 millimeter to 5 millimeters, preferably
Preferred size is 2 millimeters to 3 millimeters, and significantly can fall to people when human body weighs sense in excessive gap, because now
Power of leading pressure contact portion have to be displaced downwardly to be crimped on and lead on power support, namely move down whole above-mentioned gap size；Too small
Gap may require that higher machining accuracy, improves technology difficulty and manufacturing cost.
In the present embodiment, the range of the first precision LOAD CELLS is greater than the range of the second precision LOAD CELLS, namely
It is to say that the maximum of the first precision LOAD CELLS value of weighing is greater than the maximum of the second precision LOAD CELLS and weighs value, passes through
Choose suitable spring, and select suitable power of leading pressure contact portion and the distance led between power support, can be by the second essence
Degree LOAD CELLS pressure is limited in its range ability, thus prevents the second precision LOAD CELLS because of overweight and quilt
Crushing；The advantage of this limiter protected mode is: owing to the elastic deformation of strain gauge load cell is the least, such as originally
In embodiment, the deformation difference in height in the whole range of the second precision LOAD CELLS is calculated in microns, if using rigidity to prop up
Post replaces the spring in the present embodiment, then between power of leading pressure contact portion and power of the leading support of lower supporting part of the second mounting seat
Gap also must be weighed with micron, and this is the most too high to requirement on machining accuracy, and in view of the mistake in materials processing molding
Difference and the material that causes of the temperature difference expand change, industrial are difficulty with；If but using spring to amplify deformation, with regard to energy
The most effectively reduce requirement on machining accuracy and manufacturing cost.
The outer wall of the present embodiment the second mounting seat is provided with the clamping installation portion 34 for installing self entirety, and this clamping is installed
Portion is the wedge shape latch outwardly formed from the second mounting seat outer wall.The present embodiment in use, general and in-built electrical
The plastic feet of road plate and power module with the use of, the advantage of this structure is, if reserved card in plastic feet
Hole, then directly can be installed in hole clipping by this clamping installation portion, and its assembly operation is very convenient fast.
In the present embodiment, the power support of leading is provided with static contact 71, and the power pressure contact portion of leading is provided with moving contact 72, when this is led
Power pressure contact portion is crimped on when leading on power support, and moving contact crimping is arranged on static contact, and both realize electrical connection.At tool
In body practice, when moving contact and static contact electrical contact, produces one signal of telecommunication to connected external central control circuit,
When central control circuit receives this signal, show the data that the second precision LOAD CELLS measures on a display screen；In the middle of
When centre control circuit does not receives this signal, show the data that the first precision LOAD CELLS measures on a display screen；Namely
Being to say, this dynamic/static contact combines the signal switch automatically can changed as display screen video data；This knot
Structure, can simplify the programming of CPU element in central control circuit.In concrete practice, also can use other structure,
The combination of this dynamic/static contact is replaced for example with tongue tube, proximity switch etc..
The periphery wall of lower supporting part is provided with the stopper section 533 of evagination, and the periphery wall leading power pressure contact portion is provided with external screw thread district
311；Governor motion includes regulating spiral cover 61 and to top spiral cover 62, and the inwall of this regulation spiral cover bottom is provided with the ring of convex
Shape anticreep pressure contact portion 611, the inwall on top is provided with and leads the internal threaded regions 612 that power pressure contact portion external screw thread district is adaptive；Institute
State anticreep pressure contact portion and be set in being positioned on the periphery wall below stopper section of lower supporting part, be also screwed in lead to top spiral cover and defeat
Connect in the external screw thread district in portion, be positioned at the top of regulation spiral cover, and be connected to regulate on spiral cover；Under external force, described
Stopper section can slide up and down between power support top leading power pressure contact portion bottom and leading.During free state, lower supporting part
Under the reseting elasticity effect of spring so that it is anticreep pressure contact portion apical grafting is on stopper section, when the first mounting seat pressure-bearing stress,
Spring by stress shorten, power of the leading pressure contact portion of the second mounting seat by drives regulation spiral cover and to top spiral cover move down, now prevent
De-pressure contact portion 611 moves down the most therewith, is positioned at the lower section of stopper section 533.
The advantage of this kind of structure is: in concrete practice, spring owing to being restricted by its processing technique, its concordance
Being difficult to ensure that, typically can use four double precision LOAD CELLSs due to weighing scale and kitchen scale, concordance is difficult to protect simultaneously
The spring of card may result in the height of four LOAD CELLSs and slightly distinguishes, and impact assembles and uses, and even works as user
When picking up electronic scale observation, the bottom of each lower supporting part may not at grade, and pole is unsightly；The present embodiment uses
Governor motion adjusts the whole height of elastic supporting piece, even if so that the present embodiment uses the slightly larger spring of error, also
Have only to regulation spiral cover to be rotated in place, the concordance of whole height can be ensured.It addition, this structure so that this
Embodiment is in whole attached state, will not be scattered mutually and cause losing parts.
The operation principle of the present embodiment is:
The pressure that first mounting seat affords self all passes to the second mounting seat by the first precision LOAD CELLS
Mounting plate portion；Second mounting seat is in free state namely when not bearing pressure, and it is led power pressure contact portion and exceeds lower supporting part
Lead power support；
Compression spring during the second mounting seat pressure-bearing stress thus move down, when the first mounting seat pressure-bearing stress less than 5 kilogram time,
Namely time in the first rank range ability, by selecting suitable spring and selecting suitable power of leading pressure contact portion and lead power and prop up
The spacing of bearing portion, during so that weigh in this rank range, the power pressure contact portion of leading will not be crimped onto and cause on support, now
Mounting plate portion suffered by self all pressure transmission give the second precision LOAD CELLS, should during, the first precision is weighed biography
Sensor and the second precision LOAD CELLS all bear whole pressure, but external display screen only shows the second precision and weighs biography
The data that sensor measures, its accuracy value is the accuracy value that the second precision LOAD CELLS has, in the present embodiment, this range
Interior accuracy value is 1 gram；
When the first mounting seat pressure-bearing stress is less than 50 kilograms and is more than or equal to 5 kilogram, namely at second-order range
In the range of time, the power pressure contact portion of leading can be crimped on leads on power support, and the pressure that now the second mounting seat is born, only one is little
Part passes to the second precision LOAD CELLS, and remaining major part is then directly passed to lower supporting part by leading power pressure contact portion
Lead on power support；Owing to, during this, the first precision LOAD CELLS bears whole pressure, so external display
Screen only shows the data that the first precision LOAD CELLS measures, and its accuracy value is the precision that the first precision LOAD CELLS has
Value, in the present embodiment, the accuracy value in this range is 100 grams；In this second-order range ability, the deformation of spring is no longer
Increase, namely the pressure that the second precision LOAD CELLS is born is in preset range, so that during Gai second
Precision LOAD CELLS will not damage because of overweight.
The structure design of the present embodiment is relatively reasonable, it is possible to reduces requirement on machining accuracy, reduces manufacturing cost and technology difficulty；
Additionally can also effectively prevent the second precision LOAD CELLS because of overweight and crushing；In addition the outer wall of the present embodiment the second mounting seat
It is provided with the clamping installation portion for installing self entirety, when assembling, can entire card be contained on external plastic feet, behaviour
Make simple and direct facility.
(embodiment 2)
The present embodiment is essentially identical with above-described embodiment 1, and difference is: as shown in Fig. 7 to Figure 10, this enforcement
The first precision LOAD CELLS in example is still provided with the first fixed part, the first load deformations and is arranged on the first load shape
The first resistance strain gage for detection the first load deformations deflection in change portion；But the first precision in the present embodiment
The shape of LOAD CELLS is similar to instead " G " font, its first fixed part approximation " C " font, the first load deformation
The shape in portion is similar to less " C " font, and is connected with the first fixed part, and combination forms anti-" G " font.
The range of this kind the first precision LOAD CELLS is the most same as in Example 1 with accuracy value, and this structure also can pass through punching press side
Formula is made, and its manufacturing process is simpler.The bottom adhesive of the first mounting seat is fixed with capping 12, and capping and first is installed
Seat encloses formation one containing cavity 13, and the first deck and the first precision LOAD CELLS are positioned in this containing cavity；During capping includes
Cover region and a plurality of spiral elastic arm 124 of outer cover region in heart circular hole 121, interior cover region 122, outer cover region 123 and connection,
Center hole is arranged at inner cap district center；The center of mounting plate portion is provided with the cylinder table 321 projecting upwards formation, circle
The periphery wall of pylon is bonded and fixed in center hole, and the first load deformations crimping is arranged on the roof of cylinder table.Envelope
Lid with holding part with the use of, the first precision LOAD CELLS being pointed in containing cavity is preferably protected.It addition,
Little owing to spiral elastic arm can be made sufficiently thin, this kind of structure can fully reduce the first mounting seat and the second mounting seat
The power transmitted by capping between cylinder table 321 so that it is the error caused affects for the precision in second-order range,
Reach the degree ignored.
The present embodiment reduce further the structural requirement to the first precision LOAD CELLS, and simplifies assembly operation, can
Reduce manufacturing cost further.
Obviously, the above embodiment of the present invention is only for clearly demonstrating example of the present invention, and is not to this
The restriction of the embodiment of invention.For those of ordinary skill in the field, the most also may be used
To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And this
Belong to obvious change that the connotation of the present invention extended out a bit or variation still falls within protection scope of the present invention.
Claims (2)
1. an intelligent double precision LOAD CELLS, it is characterised in that: include crimping successively setting the first mounting seat,
First precision LOAD CELLS, the second mounting seat, the second precision LOAD CELLS and elastic supporting piece；Elastic supporting piece bag
Including upper supporting part, spring and lower supporting part, the top of spring is connected on upper supporting part, and the bottom of elastic supporting piece abuts
On lower supporting part；Second mounting seat is provided with leads power pressure contact portion, and lower supporting part is provided with leads power support；Lead on power support
Being provided with static contact, the power pressure contact portion of leading is provided with moving contact；Under free state, the power pressure contact portion of leading exceeds leads power support；
By the second precision LOAD CELLS compression spring during the second mounting seat pressure-bearing stress, and then drive is led to defeat and is connect subordinate's shifting,
When the second mounting seat pressure-bearing stress is to predeterminable level, lead to defeat meeting subordinate and move to be crimped on and lead on power support, moving contact
Crimping is arranged on static contact therewith.
Intelligent double precision LOAD CELLS the most according to claim 1, it is characterised in that: the first precision is weighed
The range of sensor is more than the range of the second precision LOAD CELLS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096247.7A CN105953894A (en) | 2016-01-20 | 2016-01-20 | Intelligent dual-precision weighting sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096247.7A CN105953894A (en) | 2016-01-20 | 2016-01-20 | Intelligent dual-precision weighting sensor |
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| CN105953894A true CN105953894A (en) | 2016-09-21 |
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| CN201610096247.7A Withdrawn CN105953894A (en) | 2016-01-20 | 2016-01-20 | Intelligent dual-precision weighting sensor |
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| US20090166095A1 (en) * | 2007-12-27 | 2009-07-02 | Tanita Corporation | Weighing machine |
| CN101629844A (en) * | 2008-07-15 | 2010-01-20 | 株式会社百利达 | Bottoming detection weighing scale and method of controlling weighing scale |
| CN202002716U (en) * | 2011-01-10 | 2011-10-05 | 广州市泰捷电子科技有限公司 | Human body weightometer |
| CN102889916A (en) * | 2011-07-22 | 2013-01-23 | 深圳市杰曼科技有限公司 | Wireless digital weighing sensor with zero power consumption in sleep mode |
| CN104838243A (en) * | 2014-07-23 | 2015-08-12 | 王雅苹 | Electronic scale |
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