CN105937937A - Dual-step electronic weighing scale - Google Patents
Dual-step electronic weighing scale Download PDFInfo
- Publication number
- CN105937937A CN105937937A CN201610096331.9A CN201610096331A CN105937937A CN 105937937 A CN105937937 A CN 105937937A CN 201610096331 A CN201610096331 A CN 201610096331A CN 105937937 A CN105937937 A CN 105937937A
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- China
- Prior art keywords
- load cells
- mounting seat
- precision
- spike
- rank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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 invention discloses a dual-step electronic weighing scale comprising a carrying plate for placing a to-be-weighed object, a pedestal arranged below the carrying plate, and dual-step weighing sensors. The dual-step weighing sensors that are arranged in the pedestal and are used for supporting the carrying plate consist of first mounting seats, first precision weighing sensors, first supporting legs, elastic supporting elements, second mounting seats, second precision weighing sensors and second supporting legs, wherein the units are arranged successively in a pressing mode. The first mounting seats are provided with guiding and pressing parts; the second mounting seats are provided with mounting plate parts and guiding and supporting parts for transmitting pressures exerted on the guiding and supporting parts to the mounting plate parts. In a free state, the guiding and pressing parts are higher than the guiding and supporting parts. When forces are applied on the first mounting seats, the elastic supporting elements are compressed and the first mounting seats move down; and when the forces exerted on the first mounting seats reach a preset degree, the guiding and pressing parts of the first mounting seats move down and press the guiding and supporting parts. The dual-step electronic weighing scale has the continuous dual-step ranges and has different precision values in ranges at all steps.
Description
Technical field
The invention belongs to equalizer technology field, be specifically related to a kind of double rank weighing electronic scale.
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 and a kind of there is the continuous range in double rank and there are in the range of each rank the double of different accuracy value
Rank weighing electronic scale.
The technical scheme realizing the object of the invention is: a kind of double rank weighing electronic scale, including the load for putting object to be claimed
Thing plate, it is arranged on the base below support board and the double rank LOAD CELLS for supporting support board in the base is set；
The each pair of rank LOAD CELLS include crimping successively the first mounting seat of setting, the first precision LOAD CELLS, first spike,
Elastic supporting piece, the second mounting seat, the second precision LOAD CELLS and second spike；First mounting seat is provided with to lead and defeats
Meet portion；Second mounting seat is provided with mounting plate portion and for self pressure being passed to power of the leading support of mounting plate portion；
Under free state, the power pressure contact portion of leading exceeds leads power support；Elasticity of compression supporting member during the first mounting seat pressure-bearing stress and under
Move；When the first mounting seat pressure-bearing stress is to predeterminable level, the leading of the first mounting seat is defeated and is met subordinate and move to be crimped on the power of leading
On support.
In technique scheme, the range of the first precision LOAD CELLS is less than the range of the second precision LOAD CELLS.
In technique scheme, the outer wall of each pair of rank LOAD CELLS is provided with the clamping for installing self entirety and installs
Portion, base is provided with buckling groove, and each pair of rank LOAD CELLS is fixed in a corresponding buckling groove by clamping installation portion.
In technique scheme, the top of each pair of rank LOAD CELLS Elastic supporting member is adhesively fixed and is arranged on support board
On diapire.
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 first 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 first precision LOAD CELLS measures, its accuracy value
Being the accuracy value of the first 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 second independent check weighing of precision LOAD CELLS can be utilized,
Namely externally connected with display screen only shows the data that the second 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 first precision LOAD CELLS is not further added by, thus effectively protect the first precision to weigh biography
Sensor so that it is will not damage because load is overweight；Additionally, the present invention by select spring as elastic supporting piece, permissible
By selecting suitable spring make to lead power pressure contact portion and lead and have suitable clearance distance between power support, can reduce
To 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 a kind of perspective view of the present invention；
Fig. 2 is a kind of perspective view when another angle is observed of the electronic scale shown in Fig. 1；
Fig. 3 is a kind of side view of electronic scale shown in Fig. 1；
Fig. 4 is that in electronic scale shown in Fig. 1, double rank LOAD CELLS is in the first rank range and weighs a kind of structural representation of state；
Fig. 5 is that double rank LOAD CELLS shown in Fig. 4 are in second-order range and weigh a kind of structural representation of state；
Fig. 6 is the first precision LOAD CELLS and a kind of explosive view of lower supporting part in double rank LOAD CELLS shown in Fig. 4；
Fig. 7 is the first precision LOAD CELLS shown in Fig. 6 and the lower supporting part a kind of explosive view when another angle is observed；
Fig. 8 is the second precision LOAD CELLS and a kind of explosive view of a spike in double rank LOAD CELLS shown in Fig. 4；
Fig. 9 is the second precision LOAD CELLS shown in Fig. 8 and the spike a kind of explosive view when another angle is observed；
Figure 10 is that in the second structure of the present invention, double rank LOAD CELLS is in the first rank range and weighs a kind of structural representation of state
Figure；
Figure 11 is that double rank LOAD CELLS shown in Figure 10 are in second-order range and weigh a kind of structural representation of state；
Figure 12 is the second precision LOAD CELLS and a kind of explosive view of second spike in double rank LOAD CELLS shown in Figure 10；
Figure 13 is the second precision LOAD CELLS shown in Figure 10 and second spike a kind of explosive view when another angle is observed；
Figure 14 is that in the third structure of the present invention, double rank LOAD CELLS is in the first rank range and weighs a kind of structural representation of state
Figure；
Figure 15 is a kind of structural representations when removing regulation screw of double rank LOAD CELLS shown in Figure 14；
Figure 16 is a kind of structural representation regulating screw in double rank LOAD CELLS shown in Figure 14；
Figure 17 is that double rank LOAD CELLS shown in Figure 14 are in second-order range and weigh a kind of structural representation of state；
Figure 18 is that in the 4th kind of structure of the present invention, double rank LOAD CELLS is in the first rank range and weighs a kind of structural representation of state
Figure；
Figure 19 is that double rank LOAD CELLS shown in Figure 18 are in second-order range and weigh a kind of structural representation of state；
Figure 20 is that in the 5th kind of structure of the present invention, double rank LOAD CELLS is in the first rank range and weighs a kind of structural representation of state
Figure；
Figure 21 is that double rank LOAD CELLS shown in Figure 20 are in second-order range and weigh a kind of structural representation of state.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of double rank weighing electronic scales, as shown in Fig. 1 to Fig. 9, including the load for putting object to be claimed
Thing plate 91；It is characterized in that: also include being arranged on the base 92 below support board and arrange in the base four for
Double rank LOAD CELLS 93 of supporting support board.
The each pair of rank LOAD CELLS include crimping successively first mounting seat the 1, first precision LOAD CELLS 2 of setting,
One spike 3, elastic supporting piece the 4, second mounting seat the 5, second precision LOAD CELLS 6 and second spike 7.
On the diapire of the first mounting seat, power of the leading pressure contact portion 11 being provided with annular leads the first of power pressure contact portion center with being positioned at
Deck 12；In the present embodiment, described in lead the diapire of power pressure contact portion 11 be a planar annular, the roof of the first mounting seat
Also there is a plane, for being bonded and fixed at the diapire of external support board.
First precision LOAD CELLS is provided with first fixed part the 21, first load deformations 22 and is arranged on the first load
The first resistance strain gage 23 in deformations；First resistance strain gage can be producing during the first load deformations pressure-bearing stress
Deformation be converted into the signal of telecommunication；Described first fixed part clamping is arranged in the first deck, and the first load deformations crimping sets
Put on the top of first spike.
In the present embodiment, the first precision force cell is LOAD CELLS for kitchen use, and its range is 0 to 5 kilogram, essence
Angle value can reach 1 gram；Specifically, the shape of described first fixed part be by four edges combination formed rectangular box-like,
The shape of the first load deformations is to be formed by a base and three straight flanges combinations arranging with this base vertical
" mountain " font, the first load deformations is arranged in the rectangle frame of the first fixed part, the three of described first load deformations
The inner side edge wall of the end of the center straight flange in bar straight flange and a frame middle-end of the first fixed part is connected.This first precision
The planform of LOAD CELLS is relatively reasonable, it is easy to by impact style processing and manufacturing, and cost is relatively low.
In the present embodiment, the basic configuration of first spike is cylindrical, outside the top of the periphery wall of first spike is provided with
Convex annular pressure contact portion 32, bottom is as traveller portion 33；It is fixed that the roof of first spike is provided with protruding upward two
Position connection boss 34, each location couples boss and is provided with screw；Described three straight flanges of first load deformations are positioned at center
Two straight flanges of straight flange both sides, are respectively provided with first fastener hole 221；Two the first screws 31 are through corresponding one first
It is rotated with after fastener hole 221 in a corresponding location couples the screw of boss, thus it is solid that the top of first spike is spirally connected
It is scheduled on the diapire of the first load deformations.This structure is realizing the same of first load deformations first spike of crimping
Time, also utilizing the first load deformations direct position first support foot, its structure more simplifies compact.
In concrete practice, it is possible to by anchor mode, the top of first spike is fixed in the first load deformations,
Two anchor boss protruding upward are such as set on the roof of first spike, the first load deformations arranges two
Individual anchor hole, each boss that is anchored passes anchor process after a corresponding anchor hole, and this mode is also effective and feasible.
Second mounting seat is provided with mounting plate portion 51, for self pressure being passed to power of the leading support of mounting plate portion
52, the holding part 56 enclosing formation containing cavity 55 below mounting plate portion it is positioned at.In the present embodiment, lead power support top
End end face is a planar annular adaptive with leading power pressure contact portion diapire.
Mounting plate portion is horizontally disposed with, and the diapire of mounting plate portion is provided with the second deck 54, the roof of mounting plate portion be provided with to
The tube shape bulge 53 with sliding chamber protruded above；The power support of leading is the annular boss projecting upwards formation from mounting plate portion,
Described first spike, elastic supporting piece and tube shape bulge 53 are located in the cavity that this annular boss surrounds.This knot
Structure makes to lead power support under coordinating with the first mounting seat, can be elastic supporting piece, first spike and the first essence
Degree LOAD CELLS is trapped among wherein, elastic supporting piece and the first precision LOAD CELLS is had certain protective effect, makes
It is not easily susceptible to extraneous factor interference.The existence of the first deck and the second deck so that the first precision LOAD CELLS and
The installation of the second precision LOAD CELLS operates more rapid and convenient.
In the present embodiment, elastic supporting piece is screw thread spring；Elastic supporting piece is set on tube shape bulge, elastic supporting piece
Top be connected on the diapire of annular pressure contact portion 32 of first spike, the bottom of elastic supporting piece is connected to installing plate
On the roof in portion；The traveller portion 33 of first spike is positioned in the sliding chamber of tube shape bulge, and can slide up and down along sliding chamber.
This structure makes the first mounting seat when load pressurized, can pass through the first precision LOAD CELLS and first spike certainly
Body bears pressure transmission to elastic supporting piece so that the screw thread spring as elastic supporting piece is shortened by compression, so that
First mounting seat moves down；When the first mounting seat pressure-bearing stress exceedes predeterminable level, power of the leading pressure contact portion of the first mounting seat will
It is displaced downwardly to be crimped on power of the leading support of the second mounting seat.
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, power of the leading pressure contact portion of the first mounting seat and second is installed
The gap on power of the leading support top of seat is in suitably sized, it is generally preferable to be 1 millimeter to 5 millimeters, the most preferably
Size is 2 millimeters to 3 millimeters, significantly can fall to people when human body weighs sense in excessive gap, because leading now
Power pressure contact portion have to be displaced downwardly to be crimped on and lead on power support, namely moves down whole above-mentioned gap size；Too small gap
May require that higher machining accuracy, improve technology difficulty and manufacturing cost.
Second precision LOAD CELLS is provided with second fixed part the 61, second load deformations 62 and is arranged on the second load
The second resistance strain gage 63 in deformations, the second resistor disc is for being converted into telecommunications the deformation of the second load deformations
Number；Second fixed part clamping is arranged in the second deck, and the second load deformations is less than described mounting plate portion, for its deformation
Slot milling, the second load deformations crimping is arranged on the top of second spike.
In the present embodiment, the second precision LOAD CELLS is human body weighing's sensor, and its range is 0 kilogram to 50 kilograms,
Accuracy value is 100 grams.
The present embodiment is owing to using four double rank LOAD CELLSs, and the scope of weighing of the first rank range is 0 to 20 kilogram,
Can meet the demand that daily small articles is weighed, the scope of weighing of second-order range is 20 to 200 kilograms, can meet
The demand of human body weighing.
In the present embodiment, the second precision LOAD CELLS is structurally similar to the first 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 second fixed part is
By four edges combination formed rectangular box-like, the shape of the second load deformations be by a base and with this base vertical
" mountain " font that three the straight flange combinations arranged are formed, the second load deformations is arranged in the frame of the second fixed part, institute
State the interior of the end of center straight flange in three straight flanges of the second load deformations and a frame middle-end of the second fixed part
Side wall is connected.The first precision LOAD CELLS and the second precision LOAD CELLS in the present embodiment are suitable for passing through punching press
Mode processing and manufacturing, advantageously reduces manufacturing cost.
In the present embodiment, the first precision LOAD CELLS used and the second precision LOAD CELLS may be used without the most widely
Circulation and the cheapest force cell of price, thus effectively reduce manufacturing cost.
In the present embodiment, the basic configuration of second spike is cylindric, and its bottom is provided with rubber slipmat 71.This reality
Execute in example second spike to be fixedly installed on the second precision LOAD CELLS by screw connection manner, specifically, second
The top propping up spike is provided with two installation screws 72, and the second load deformations is provided with two the second fastener holes 621；Second
The top propping up spike is directly anchored to the end of the second load deformations by two second screws 73 adaptive with installation screw
On wall.In the present embodiment, two straight flanges being positioned at straight flange both sides, center in described three straight flanges of second load deformations,
It is respectively provided with second fastener hole.Certainly, described second spike also can be fixedly installed on the second load by anchor mode
In deformations.Such as, arranging two anchor boss protruding upward on the roof of second spike, each boss that is anchored is worn
After crossing corresponding second fastener hole, then carry out anchoring process.This structure is realizing the second load deformations crimping second
While propping up spike, also utilizing the second load deformations directly to position second spike, its structure more simplifies compact.
In the present embodiment, holding part and mounting plate portion are made into integration, and the second precision LOAD CELLS and second spike are arranged
In this containing cavity, the bottom of second spike also extends downwardly from this containing cavity.The advantage of this structure is can be to
Two precision LOAD CELLSs and second spike are protected, and prevent extraneous factor from disturbing it.The present embodiment is handle
Lead power support, mounting plate portion and holding part and be formed integrally part, in concrete practice, it is possible to it is each made split part,
It is finally assemblied at together, is also feasible.
In the present embodiment, being provided with containing cavity bottom opening at holding part bottom center, this opening part is provided with for blocking accommodating
The capping 58 of chamber bottom opening, is provided with center hole 581 at cap central；The bottom of second spike extends downwardly from capping
Center hole, and between the inwall of the periphery wall of second spike and cap central circular hole, leave gap, thus ensure
Two mounting seats directly do not contact with second spike, prevent leading power support and self pressure is directly passed by holding part
Pass second spike, it is ensured that lead that power support passes sequentially through mounting plate portion self pressure, the second precision weighs biography
Sensor passes to second spike.It addition, capping with holding part with the use of, the first precision being pointed in containing cavity claims
Weight sensor is preferably protected.
In the present embodiment, the range of the first precision LOAD CELLS is less 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 less 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 first essence
Degree LOAD CELLS pressure is limited in its range ability, thus prevents the first LOAD CELLS from being pressed because of overweight
Damage；The advantage of this limiter protected mode is: owing to the elastic deformation of strain gauge load cell is the least, such as this reality
The deformation difference in height executed in example in the whole range of the first precision LOAD CELLS is calculated in microns, if using rigid support
Replace the spring in the present embodiment, then between power of leading pressure contact portion and power of the leading support of the second mounting seat of the first 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
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 57 for installing self entirety, and this clamping is installed
Portion is the wedge shape latch outwardly formed from the second mounting seat outer wall.Base 92 is provided with four buckling grooves, each pair of rank
LOAD CELLS is fixed in a corresponding buckling groove by clamping installation portion；This mounting means more simplifies, and
Each pair of rank LOAD CELLS can independently dismount, it is simple to overhauls and changes.
The present embodiment also includes the governor motion 8 for regulating elastic supporting piece height；Set on the periphery wall of the first mounting seat
Having the stopper section 13 of evagination, the periphery wall leading power support is provided with external screw thread district 521；Governor motion includes regulating spiral cover
81 and to top spiral cover 82；This regulation rotation upper part of the cover inwall is provided with the annular anticreep pressure contact portion 811 of convex, bottom interior
Wall is provided with and leads the internal threaded regions 812 that power support external screw thread district is adaptive；Described anticreep pressure contact portion is set in the first installation
Being positioned on the periphery wall above stopper section of seat, and be crimped on stopper section；Top spiral cover rotation is located at and leads outside power support
On threaded area, in the present embodiment, top spiral cover is positioned at the lower section of regulation spiral cover, and apical grafting is on regulation spiral cover.In external force
Under effect, described stopper section can slide up and down between power support top at anticreep pressure contact portion and leading.This kind of structure excellent
Point is: in concrete practice, spring is owing to being restricted by its processing technique, and its concordance is difficult to ensure that, due to people
Body scale and kitchen scale typically can use four double rank LOAD CELLSs simultaneously, and the spring that concordance is difficult to ensure that will cause four
The height of individual LOAD CELLS is slightly distinguished, and impact assembles and uses, even when user picks up electronic scale observation, respectively
The most at grade, pole is unsightly in the bottom of second spike；The present embodiment uses governor motion to adjust elastic supporting piece
Whole height, even if so that the present embodiment uses the slightly larger spring of error, also have only to a regulation spiral cover to rotate to
Position, can ensure the concordance of whole height.
In the present embodiment, leading power support top and be provided with static contact 91, power of the leading pressure contact portion of the first mounting seat is provided with quiet with this
The moving contact 92 that contact is adaptive；When this lead power pressure contact portion be crimped on lead on power support time, moving contact crimping be arranged on stationary contact
On head, both realize electrical connection.In concrete practice, when moving contact and static contact electrical contact, produce a signal of telecommunication and give
The external central control circuit being connected, when central control circuit receives this signal, shows the second precision on a display screen
The data that LOAD CELLS measures；When central control circuit does not receives this signal, show the first precision on a display screen
The data that LOAD CELLS measures；In other words, combine can be automatic as display screen video data for this dynamic/static contact
The signal switch of conversion；This structure, can simplify the programming of CPU element in central control circuit.Specifically
In practice, also can use other structure, replace the combination of this dynamic/static contact for example with tongue tube, proximity switch etc..
The operation principle of each pair of rank LOAD CELLS is:
First mounting seat is in free state namely when not bearing pressure, and top and the power pressure contact portion of leading thereof of the first mounting seat are the highest
Go out to lead the top of power support；
Compression spring during the first 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, namely
First mounting seat bears whole pressure, and pass to successively the first precision LOAD CELLS, first spike, spring,
The mounting plate portion of the second mounting seat, the second precision LOAD CELLS and second spike；Now by external central authorities' control
Circuit shows the data that the first precision LOAD CELLS measures, and its accuracy value is up to 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, owing to spring deformation is not further added by so that the first precision
LOAD CELLS stress is not further added by, thus effectively protects the first precision LOAD CELLS will not be because of overweight crushing；It practice,
Now in the first mounting seat pressure, have 5 kilograms (actually this force value size by pre-set springs deformation degree determine,
5 kilograms can be slightly larger than) pass to the first precision LOAD CELLS, first spike, spring, the second installation successively
Mounting plate portion, the second precision LOAD CELLS and second spike of seat；Remaining pressure is then by leading power pressure contact portion and leading power
Support passes to mounting plate portion, the second precision LOAD CELLS and second spike successively；At this moment electricity is controlled by central authorities
Road shows the data that the second precision LOAD CELLS measures, and its accuracy value only has 100 grams.
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 first 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 substantially the same manner as Example 1, and difference is: as shown in Figure 10 to Figure 13, in the present embodiment,
The planform of the second precision LOAD CELLS, second spike and capping is different with embodiment 1, in the present embodiment
The second precision LOAD CELLS be still provided with second fixed part the 61, second load deformations 62 and be arranged on second and hold
The second resistance strain gage 63 for detection the second load deformations deflection in power deformations；But in the present embodiment
The shape of two precision LOAD CELLSs is similar to instead " G " font, and its second fixed part approximation " C " font, second holds
The shape of power deformations is similar to less " C " font, and is connected with the second fixed part, and combination forms anti-" G "
Font.The range of this kind the second precision LOAD CELLS is the most same as in Example 1 with accuracy value, and this structure also can be passed through
Impact style is made, and its manufacturing process is simpler.
In the present embodiment, the second fixed part in the second precision LOAD CELLS be still installed on mounting plate portion diapire
In two decks, the present embodiment no longer uses the second screw that the second load deformations and second spike are spirally connected and are fixed on one
Rise, but the second load deformations is directly crimped on the top being arranged on second spike；But by screw connection manner handle
The assembling mode that the top of second spike is joined directly together with the second load deformations is still feasible.
Capping in the present embodiment includes interior cover region 582, outer cover region 583 and connects interior cover region and a plurality of spiral shell of outer cover region
Rotation elastic arm 584, center hole is arranged at inner cap district center, and the outer wall of second spike is adhesively fixed centrally disposed circle
Kong Zhong.Little owing to spiral elastic arm can be made sufficiently thin, this kind of structure can fully reduce second spike outer wall and
The power transmitted by capping between two mounting seats so that it is the error caused affects for the precision in second-order range, reaches
To the degree ignored.
The present embodiment reduce further the structural requirement to the second precision LOAD CELLS, and simplifies assembly operation, can
Reduce manufacturing cost further.
(embodiment 3)
The present embodiment is substantially the same manner as Example 1, and difference is: as shown in Figure 14 to Figure 17, and the present embodiment is not
Arranging static contact 91 and moving contact 92 again, the top of the periphery wall of first spike no longer arranges annular pressure contact portion 32, under
Portion is not the most re-used as traveller portion 33 and uses.
In the present embodiment, the center of first spike is provided with adjustment hole 35, the center of the tube shape bulge 53 of mounting plate portion
Place, is additionally provided with the circle from mounting plate portion is protruding upward and couples pylon 59, and the roof center of this connection pylon is provided with connection
Screw 591；Tube shape bulge couples pylon and encloses formation annular spacing groove 592 with circle；The bottom of spring is positioned at this annular
In stopper slot, and being connected in mounting plate portion, the top of spring is connected on the diapire of first spike.
Being used in the present embodiment regulates the governor motion 8 of elastic supporting piece height and no longer includes regulating spiral cover 81 and to top
Spiral cover 82, only includes regulating screw 83, and this regulation screw is sequentially provided with the portion of screwing 831, slide connecting part 832 from top to bottom
And the spiro union portion 833 adaptive with adjustment hole, screwing the external diameter external diameter more than slide connecting part in portion, the shape of slide connecting part is outer wall
Smooth cylinder；The adjustment hole of described first spike is stepped hole, is bigger crimping hole, aperture the most successively
The less slide opening district 352 in district 351 and aperture, the diapire of crimping porose area is as electrolysis 353, and slide opening district is that hole wall is smooth
Circular hole；Described spiro union portion is spirally connected and is fixed in the connection screw 591 coupling pylon 59；During free state, at spring
Top pressure effect under, the portion of screwing be positioned at crimping porose area in, and the diapire screwing portion be crimped on crimping porose area diapire on, also
On the most described electrolysis；Slide connecting part 832 is then positioned in slide opening district；Under external force, described first spike can adjusted
Slide up and down under the guide effect of joint screw slide connecting part 832.This structure connects first spike by using regulation screw
Mounting plate portion with the second mounting seat so that first spike and spring will not be lost because of split；Simultaneously should by turn
Regulation screw, between can directly adjusting between power of the leading pressure contact portion of the first mounting seat and power of the leading support of the second mounting seat
Stand-off distance is from, its structure comparison compact and reasonable.
(embodiment 4)
The present embodiment is substantially the same manner as Example 4, and difference is: as shown in Figure 18 to Figure 19, due to regulation spiral shell
Nail 83 is enclosed Tibetan wherein by the first mounting seat with leading power support, it is impossible to again tune after overall package, so this enforcement
Governor motion 8 in example also includes regulating spiral cover 81 and to top spiral cover 82；The periphery wall of the first mounting seat is provided with evagination
Stopper section 13, the periphery wall leading power support is provided with external screw thread district 521；This regulation rotation upper part of the cover inwall is provided with
The annular anticreep pressure contact portion 811 of convex, the inwall of bottom is provided with and leads the internal threaded regions that power support external screw thread district is adaptive
812；Described anticreep pressure contact portion is set in being positioned on the periphery wall above stopper section of the first mounting seat, and is crimped on backstop
In portion；Top spiral cover rotation is located in the external screw thread district leading power support, in the present embodiment, top spiral cover is positioned at regulation spiral cover
Lower section, and apical grafting regulation spiral cover on.Under external force, described stopper section can support at anticreep pressure contact portion and power of leading
Portion slides up and down between top.The advantage of this kind of structure is: in concrete practice, and spring is owing to being processed work by it
The restriction of skill, its concordance is difficult to ensure that, typically can use four double rank weighing and sensings due to weighing scale and kitchen scale simultaneously
Device, the spring that concordance is difficult to ensure that will cause the height of four LOAD CELLSs slightly to be distinguished, and impact assembles and uses,
Even when user picks up electronic scale observation, the most at grade, pole is unsightly in the bottom of each second spike；This
Embodiment uses governor motion to adjust the whole height of elastic supporting piece, even if so that the present embodiment uses error slightly larger
Spring, also have only to regulation a spiral cover be rotated in place, the concordance of whole height can be ensured.
Additionally, in the present embodiment, lead power support top and be provided with static contact 91, power of the leading pressure contact portion of the first mounting seat is provided with
The moving contact 92 adaptive with this static contact；When this lead power pressure contact portion be crimped on lead on power support time, moving contact crimping arrange
On static contact, both realize electrical connection.In concrete practice, when moving contact and static contact electrical contact, produce an electricity
Signal gives the external central control circuit being connected, and when central control circuit receives this signal, shows the on a display screen
The data that two precision LOAD CELLSs measure；When central control circuit does not receives this signal, show on a display screen
The data that one precision LOAD CELLS measures；In other words, this dynamic/static contact combines and can show number as display screen
Signal switch according to conversion automatically；This structure, can simplify the programming of CPU element in central control circuit.
In concrete practice, also can use other structure, replace the combination of this dynamic/static contact for example with tongue tube, proximity switch etc..
(embodiment 5)
The present embodiment is substantially the same manner as Example 5, and difference is: as shown in Figure 20 to Figure 21, in the present embodiment,
The planform of the second precision LOAD CELLS, second spike and capping is different with embodiment 5, in the present embodiment
The second precision LOAD CELLS be still provided with second fixed part the 61, second load deformations 62 and be arranged on second and hold
The second resistance strain gage 63 for detection the second load deformations deflection in power deformations；But in the present embodiment
The shape of two precision LOAD CELLSs is similar to instead " G " font, and its second fixed part approximation " C " font, second holds
The shape of power deformations is similar to less " C " font, and is connected with the second fixed part, and combination forms anti-" G "
Font.The range of this kind the second precision LOAD CELLS is the most same as in Example 1 with accuracy value, and this structure also can be passed through
Impact style is made, and its manufacturing process is simpler.
In the present embodiment, the second fixed part in the second precision LOAD CELLS be still installed on mounting plate portion diapire
In two decks, the present embodiment no longer uses the second screw that the second load deformations and second spike are spirally connected and are fixed on one
Rise, but the second load deformations is directly crimped on the top being arranged on second spike；But by screw connection manner handle
The assembling mode that the top of second spike is joined directly together with the second load deformations is still feasible.
Capping in the present embodiment includes interior cover region 582, outer cover region 583 and connects interior cover region and a plurality of spiral shell of outer cover region
Rotation elastic arm 584, center hole is arranged at inner cap district center, and the outer wall of second spike is adhesively fixed centrally disposed circle
Kong Zhong.Little owing to spiral elastic arm can be made sufficiently thin, this kind of structure can fully reduce second spike outer wall and
The power transmitted by capping between two mounting seats so that it is the error caused affects for the precision in second-order range, reaches
To the degree ignored.
The present embodiment reduce further the structural requirement to the second 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 (3)
1. double rank weighing electronic scale, including the support board for putting object to be claimed；It is characterized in that: also include
It is arranged on the base below support board and the double rank LOAD CELLS for supporting support board in the base is set；Each pair of rank
LOAD CELLS includes crimping the first mounting seat of setting, the first precision LOAD CELLS, first spike, elasticity successively
Supporting member, the second mounting seat, the second precision LOAD CELLS and second spike；First mounting seat is provided with leads power pressure contact portion；
Second mounting seat is provided with mounting plate portion and for self pressure being passed to power of the leading support of mounting plate portion；Free shape
Under state, the power pressure contact portion of leading exceeds leads power support；Elasticity of compression supporting member during the first mounting seat pressure-bearing stress and move down；When
When first mounting seat pressure-bearing stress is to predeterminable level, the leading of the first mounting seat is defeated and is met subordinate and move to be crimped on and lead power support
On.
The most according to claim 1 pair of rank weighing electronic scale, it is characterised in that: the first precision LOAD CELLS
Range is less than the range of the second precision LOAD CELLS.
The most according to claim 1 pair of rank weighing electronic scale, it is characterised in that: outside each pair of rank LOAD CELLS
Wall is provided with the clamping installation portion for installing self entirety, and base is provided with buckling groove, and each pair of rank LOAD CELLS is by card
Connect installation portion to be fixed in a corresponding buckling groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096331.9A CN105937937A (en) | 2016-01-20 | 2016-01-20 | Dual-step electronic weighing scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096331.9A CN105937937A (en) | 2016-01-20 | 2016-01-20 | Dual-step electronic weighing scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105937937A true CN105937937A (en) | 2016-09-14 |
Family
ID=57153085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610096331.9A Withdrawn CN105937937A (en) | 2016-01-20 | 2016-01-20 | Dual-step electronic weighing scale |
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| Country | Link |
|---|---|
| CN (1) | CN105937937A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1371954A2 (en) * | 2002-06-14 | 2003-12-17 | Soehnle-Waagen GmbH & Co. KG | Scale |
| CN201251473Y (en) * | 2008-07-07 | 2009-06-03 | 广州电测仪器厂 | Integrated self-supporting weighing 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 |
| CN203824632U (en) * | 2013-12-27 | 2014-09-10 | 苏州市海神达机械科技有限公司 | Novel multifunctional electronic scale |
| CN104838243A (en) * | 2014-07-23 | 2015-08-12 | 王雅苹 | Electronic scale |
-
2016
- 2016-01-20 CN CN201610096331.9A patent/CN105937937A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1371954A2 (en) * | 2002-06-14 | 2003-12-17 | Soehnle-Waagen GmbH & Co. KG | Scale |
| CN201251473Y (en) * | 2008-07-07 | 2009-06-03 | 广州电测仪器厂 | Integrated self-supporting weighing 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 |
| CN203824632U (en) * | 2013-12-27 | 2014-09-10 | 苏州市海神达机械科技有限公司 | Novel multifunctional electronic scale |
| CN104838243A (en) * | 2014-07-23 | 2015-08-12 | 王雅苹 | Electronic scale |
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