CN105937942A - Improved combined weighing sensor - Google Patents
Improved combined weighing sensor Download PDFInfo
- Publication number
- CN105937942A CN105937942A CN201610096377.0A CN201610096377A CN105937942A CN 105937942 A CN105937942 A CN 105937942A CN 201610096377 A CN201610096377 A CN 201610096377A CN 105937942 A CN105937942 A CN 105937942A
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- China
- Prior art keywords
- supporting part
- load cells
- spring
- precision
- upper supporting
- Prior art date
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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
Disclosed in the invention is an improved combined weighing sensor comprising a first mounting seat, a first precision weighing sensor, an elastic support element, a second precision weighing sensor and a support leg. The elastic supporting element consists of an upper support element, a spring, and a lower support element; the top of the spring is abutted against the upper support element and the bottom of the elastic supporting element is abutted against the lower support element. The mounting seat, the first precision weighing sensor, the upper support element, the springs, the lower support element, the second precision weighing sensor and the support leg are arranged successively in a pressing mode. A guiding and pressing part is arranged at the upper support element; and a guiding and supporting part is arranged at the support leg. In a free state, the guiding and pressing part is higher than the guiding and supporting part. When a force is exerted on the upper support element, the spring is pressed and thus the guiding and pressing part is driven to move down; and when the force exerted on the upper support element reaches a preset degree, the guiding and pressing part moves down and then presses the guiding and supporting part. The weighing sensor has the continuous dual-step ranges and has different precision values in ranges at all steps.
Description
Technical field
The invention belongs to load cell structure design field, be specifically related to a kind of modified model combination type 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 and a kind of there is the continuous range in double rank and in the range of each rank, there is changing of different accuracy value
Enter type combination type LOAD CELLS.
The technical scheme realizing the object of the invention is: a kind of modified model combination type LOAD CELLS, including mounting seat, first
Precision LOAD CELLS, elastic supporting piece, the second precision LOAD CELLS and a spike；Elastic supporting piece includes supporting
Part, spring and lower supporting part, the top of spring is connected on upper supporting part, and the bottom of elastic supporting piece is connected to lower support
On part；Described mounting seat, the first precision LOAD CELLS, upper supporting part, spring, lower supporting part, the second precision are weighed
Sensor and a spike crimp setting successively；Upper supporting part is provided with leads power pressure contact portion, and a spike is provided with leads power support；Peace
The diapire of dress seat is provided with the first deck；First precision LOAD CELLS be provided with the first fixed part, the first load deformations,
With the first resistance strain gage being arranged in the first load deformations；First fixed part clamping is arranged in the first deck；The
One load deformations crimping is arranged on upper supporting part；Upper supporting part is provided with gusset piece portion, and the power pressure contact portion of leading is from gusset piece
Portion is downwardly projected the annular boss of formation；First load deformations crimping is arranged on the roof in gusset piece portion；Gusset piece portion
The center of diapire is provided with the guiding traveller being downwardly projected formation；Lower supporting part is provided with mounting plate portion, from mounting plate portion upwards
Highlight the tube shape bulge with sliding chamber formed, the second deck being arranged on mounting plate portion diapire；Spring housing is located at tubulose
On boss, the top of spring is connected on the diapire in gusset piece portion of upper supporting part, and the bottom of spring is connected to mounting plate portion
Roof on；Guide traveller to be positioned in the sliding chamber of tube shape bulge, and can slide up and down in sliding chamber；Under free state, lead
Power pressure contact portion exceeds leads power support；Compression spring during upper supporting part pressure-bearing stress, so drive lead defeat connect subordinate move,
When upper supporting part pressure-bearing stress is to predeterminable level, lead to defeat meeting subordinate and move to be crimped on and lead on power support.
In technique 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, the first precision LOAD CELLS and the second precision LOAD CELLS bear whole pressure simultaneously, but can utilize the second essence
Spend the independent check weighing of LOAD CELLS, namely externally connected with display screen only shows the data that the second precision LOAD CELLS measures, its essence
Angle value is the accuracy value of the second precision LOAD CELLS, general uses higher precision, and such as accuracy value is 1 gram or more
Little；When weighing in the second range, namely leading to defeat and meet subordinate and move to be crimped on when leading on power support, the first precision claims
Weight sensor bears whole pressure, and the second precision LOAD CELLS is subjected only to partial pressure, and remaining pressure is then by leading power
Pressure contact portion is transferred directly to lead on power support, it is possible to utilize the first independent check weighing of precision LOAD CELLS, namely outward
Connecing the data that display screen only shows that the first precision LOAD CELLS measures, its accuracy value is the essence of the second precision LOAD CELLS
Angle value, general uses relatively low precision, and such as accuracy value is 100 grams or bigger；It addition, the present invention is in second-order amount
When weighing in the range of journey, now leading to defeat meeting subordinate and move to be crimped on and lead on power support, spring deformation is not further added by, also
The pressure being i.e. applied on the second precision LOAD CELLS is not further added by, thus effectively protects the second precision LOAD CELLS,
Make it will not damage because load is overweight；Additionally, the present invention by select spring as the core of 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 upper supporting part and the requirement on machining accuracy of a spike, 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 combination type 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 combination type 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 a spike in combination type LOAD CELLS shown in Fig. 1；
Fig. 6 is the second precision LOAD CELLS shown in Fig. 5 and the spike a kind of explosive view when another angle is observed；
Fig. 7 is that the second structure of the present invention is in the first rank range and weighs a kind of structural representation of state；
Fig. 8 is that combination type LOAD CELLS shown in Fig. 7 is in second-order range and weighs a kind of structural representation of state；
Fig. 9 is that the third structure of the present invention is in the first rank range and weighs a kind of structural representation of state；
Figure 10 is that combination type LOAD CELLS shown in Fig. 9 is in second-order range and weighs a kind of structural representation of state；
Figure 11 is the first precision LOAD CELLS and a kind of explosive view of capping in combination type LOAD CELLS shown in Fig. 9；
Figure 12 is the first precision LOAD CELLS shown in Figure 11 and the capping a kind of explosive view when another angle is observed；
Figure 13 is that the 4th kind of structure of the present invention is in the first rank range and weighs a kind of structural representation of state；
Figure 14 is a kind of structural representation when removing regulation screw and spring of the combination type LOAD CELLS shown in Figure 13；
Figure 15 is a kind of structural representation regulating screw in combination type LOAD CELLS shown in Figure 13；
Combination type LOAD CELLS shown in Figure 16 Figure 13 is in second-order range and weighs a kind of structural representation of state；
Figure 17 is that the 5th kind of structure of the present invention is in the first rank range and weighs a kind of structural representation of state；
Figure 18 is that combination type LOAD CELLS shown in Figure 17 is in second-order range and weighs a kind of structural representation of state.
Detailed description of the invention
(embodiment 1)
The present embodiment is a kind of modified model combination type LOAD CELLS, as shown in Fig. 1 to Fig. 6, including mounting seat 1, the
One precision LOAD CELLS 2, elastic supporting piece the 3, second precision LOAD CELLS 4 and a spike 5；Elastic supporting piece bag
Including upper supporting part 31, spring 32 and lower supporting part 33, the top of spring is connected on upper supporting part, elastic supporting piece
Bottom is connected on lower supporting part；Described mounting seat, the first precision LOAD CELLS, upper supporting part, spring, lower support
Part, the second precision LOAD CELLS and a spike crimp setting successively；Upper supporting part is provided with leads power pressure contact portion 311, supports
Foot is provided with leads power support 51；Under free state, the power pressure contact portion of leading exceeds leads power support；During upper supporting part pressure-bearing stress
Compression spring, so drive lead defeat connect subordinate move, when upper supporting part pressure-bearing stress is to predeterminable level, lead power pressure contact portion
It is displaced downwardly to pressure by leading on power support.Illustrate concrete structure and the operation principle of the present embodiment in detail below.
The diapire of mounting seat is provided with the first deck 11, and the roof of mounting seat has a plane, is used for being adhesively fixed outside
Connect on the diapire of 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 being arranged in the first load deformations, the first resistance strain gage can be the first load deformations
The deformation produced during pressure-bearing stress is converted into the signal of telecommunication；First fixed part clamping is arranged in the first deck, and this clamping sets
Put the assembly operation that can simplify the first precision LOAD CELLS.
Upper supporting part has horizontally disposed gusset piece portion 312, leads power pressure contact portion and is downwardly projected formation from gusset piece portion
Annular boss, leads and has the annular bearing surface adaptive with leading power pressure contact portion on the roof of power support；First load deformations
Crimping is arranged on the roof in gusset piece portion.
The center of gusset piece portion diapire is provided with the guiding traveller 313 being downwardly projected formation；Lower supporting part is provided with mounting plate portion
331, from mounting plate portion project upwards formation the tube shape bulge 332 with sliding chamber, be arranged on mounting plate portion diapire
Two decks 333；Spring housing is located on tube shape bulge, and the top of spring is connected on the diapire in gusset piece portion of upper supporting part,
On the roof of the mounting plate portion that the bottom of spring is connected to lower supporting part；Guide traveller to be positioned in the sliding chamber of tube shape bulge, and
Can slide up and down in sliding chamber, this structure makes upper supporting part in the guiding limit guiding traveller 313 and tube shape bulge 332
Move up and down under the effect of position.Second precision LOAD CELLS be provided with second fixed part the 41, second load deformations 42,
With the second resistance strain gage 43 being arranged in the second load deformations, the second resistance strain gage can be the second load deformation
The deformation produced during portion's pressure-bearing stress is converted into the signal of telecommunication；Second fixed part clamping is arranged in the second deck, this clamping
The assembly operation that can simplify the second precision LOAD CELLS is set；Second load deformations crimping is arranged on a spike.
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 combination type 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 combination type 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 of the first precision LOAD CELLS is provided with two the first fastener holes 221；
The roof in gusset piece portion is provided with two the fastening screws adaptive with the first fastener hole, the first load deformations by with fastening
Two the first screws 24 of screw adaptation are spirally connected on the roof being fixed on gusset piece portion.Specifically, described first load
Two straight flanges being positioned at straight flange both sides, center in three straight flanges of deformations, are respectively provided with first fastener hole 221；This
Structure, while realizing the first load deformations crimping gusset piece portion, also utilizes the first load deformations be directly connected to and determine
Gusset piece portion, position, its structure more simplifies compact.In concrete practice, it is possible to by being anchored mode the top in gusset piece portion
End is anchored on the diapire of the first load deformations, such as, arrange two anchors protruding upward on the roof in gusset piece portion
Boss, arranges two anchor holes in the first load deformations, and each boss that is anchored passes anchor process after a corresponding anchor hole,
This anchor mode is also effective and feasible.
In the present embodiment, the second load deformations of the second precision LOAD CELLS is provided with two the second fastener holes 421,
Two installation screws that the roof of spike is provided with and the second fastener hole is adaptive, the second load deformations by with spiral shell is installed
Two the second screws 44 of hole adaptation are fixed on the roof of a spike.Specifically, described second load deformations three
Two straight flanges being positioned at straight flange both sides, center in bar straight flange, are respectively provided with second fastener hole.Certainly, described spike
Also can be fixedly installed on the diapire of the second load deformations by anchor mode.Such as, the roof of a spike is arranged
Two anchor boss protruding upward, after each anchor boss passes corresponding second fastener hole, then carry out anchoring process.
This structure, while realizing the second load deformations crimping spike, also utilizes the second load deformations to be directly connected to fixed
Position spike, its structure more simplifies compact.
In the present embodiment, power of leading pressure contact portion and the gusset piece portion of upper supporting part are made into integration, and enclose formation one cavity, the
Two decks, the second precision LOAD CELLS, spring and lower supporting part are respectively positioned in this cavity.The advantage of this structure is
Second precision LOAD CELLS, spring and lower supporting part can be protected, prevent extraneous factor from it being disturbed.
In concrete practice, it is possible to power pressure contact portion will be led and split part is each made in gusset piece portion, and be finally assemblied at together, be also
Feasible.
The present embodiment Elastic supporting member relatively reasonable in structure compact, can preferably be accurately positioned spring, anti-
Only its eccentric displacement, it addition, this structure is especially suitable for quickly assembling and later maintenance replacing.Additionally, this structure is also
Take full advantage of the performance advantage of spring, by selecting suitable spring, so that during free state, upper supporting part
The gap of the bottom and power of the leading support top of a spike of leading power pressure contact portion is in suitably sized, it is generally preferable to be 1 milli
Rice is to 5 millimeters, and preferably preferred size is 2 millimeters to 3 millimeters, and excessive gap can be obvious to people when human body weighs
Sense of falling because power of leading pressure contact portion now have to be displaced downwardly to be crimped on lead on power support, namely quickly move down whole
Individual 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, the then gap between power of leading pressure contact portion and power of the leading support of a spike of upper supporting part
Also must weigh with micron, this is the most too high to requirement on machining accuracy, and in view of the error in materials processing molding with
And the material that causes of the temperature difference expands change, industrial it is difficulty with；If but use spring to amplify deformation, just can be effective
Effectively reduce requirement on machining accuracy and manufacturing cost.
In the present embodiment, the outer wall of upper supporting part is provided with the clamping installation portion 316 for installing self entirety, and this clamping is pacified
Dress portion is the wedge shape latch outwardly formed from upper supporting part 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 operation principle of the present embodiment is:
The pressure that mounting seat affords self all passes to the connection of upper supporting part by the first precision LOAD CELLS
Plate portion；Upper supporting part is in free state namely when not bearing pressure, and it is led power pressure contact portion and exceeds power of the leading supporting of lower supporting part
Portion；
Compression spring during upper supporting part pressure-bearing stress thus move down, when 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 support
Spacing so that this rank range in weigh time, the power pressure contact portion of leading will not be crimped onto and cause, on support, now coupling
Plate portion suffered by self all pressure transmission give the second precision LOAD CELLS, should during, the first precision LOAD CELLS
All bear whole pressure with the second precision LOAD CELLS, but external display screen only shows the second precision LOAD CELLS
The data measured, its accuracy value is the accuracy value that the second precision LOAD CELLS has, in the present embodiment, in this range
Accuracy value is 1 gram；
When mounting seat pressure-bearing stress is less than 50 kilograms and is more than or equal to 5 kilogram, namely in second-order range ability
Time interior, the power pressure contact portion of leading can be crimped on leads on power support, the pressure that now the gusset piece portion of upper supporting part bears, and only has
Sub-fraction passes to the second precision LOAD CELLS, and remaining major part is then directly passed to spike by leading power pressure contact portion
Power of leading support on；Owing to, during this, the first precision LOAD CELLS bears whole pressure, so external is aobvious
Display screen only shows the data that the first precision LOAD CELLS measures, and its accuracy value is the essence that the first precision LOAD CELLS has
Angle 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 not
Increase again, namely the pressure that the second precision LOAD CELLS is born is in preset range, so that during Gai
Two precision LOAD CELLSs 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 on the outer wall of the present embodiment upper supporting part
It is provided with the clamping installation portion for installing self entirety, when assembling, can entire card be contained on external plastic feet, operation
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 Fig. 8, the present embodiment
Also include the governor motion 6 for regulating elastic supporting piece whole height；The periphery wall propping up spike is provided with the backstop of evagination
Portion 52, the periphery wall leading power pressure contact portion is provided with external screw thread district 314；Governor motion includes regulating spiral cover 61 and to top rotation
Lid 62, the inwall of this regulation spiral cover bottom is provided with the annular anticreep pressure contact portion 611 of convex, the inwall on top be provided with
Lead the internal threaded regions 612 that power pressure contact portion external screw thread district is adaptive；What described anticreep pressure contact portion was set in lower supporting part is positioned at backstop
On periphery wall below portion, top spiral cover rotation is located in the external screw thread district leading power support, and is 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.From
By under state, under the elastic force effect of spring, anticreep pressure contact portion apical grafting is on stopper section；When gusset piece portion pressure-bearing stress,
Stress is shortened by spring, leads power pressure contact portion and by drive regulation spiral cover and moves down pushing up spiral cover, anticreep pressure contact portion 611 now
Move down the most therewith, be positioned at the lower section of stopper section 52.
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 combination type 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 under spring free state, even if so that the present embodiment uses the slightly larger bullet of error
Spring, also has only to regulation spiral cover to be rotated in place, can ensure the concordance of whole height.It addition, this structure is permissible
Make the present embodiment be in whole attached state, will not be scattered mutually and cause losing parts.
(embodiment 3)
The present embodiment is essentially identical with above-described embodiment 2, and difference is: as shown in Fig. 9 to Figure 12, 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
The first resistance strain gage for detection the first load deformations deflection in deformations；But the first essence in the present embodiment
The shape of degree LOAD CELLS is similar to instead " G " font, its first fixed part approximation " C " font, the first load shape
The shape in change portion is similar to less " C " font, and is connected with the first fixed part, and combination forms anti-" G " word
Shape.The range of this kind the first precision LOAD CELLS is the most same as in Example 2 with accuracy value, and this structure also can be by punching
Pressure mode is made, and its manufacturing process is simpler.The bottom of mounting seat is provided with capping 12, and capping and mounting seat enclose formation
One containing cavity 13, the first deck and the first precision LOAD CELLS are positioned in this containing cavity；Capping include center hole 121,
Cover region and a plurality of spiral elastic arm 124 of outer cover region in interior cover region 122, outer cover region 123 and connection, center hole is arranged
At inner cap district center；The center in gusset piece portion is provided with the cylinder table 317 projecting upwards formation, the periphery wall of cylinder table
Being bonded and fixed in center hole, the first load deformations directly crimps on the roof being arranged on cylinder table.Capping is with accommodating
Portion with the use of, the first precision LOAD CELLS being pointed in containing cavity is preferably protected.Further, since it is permissible
Spiral elastic arm is made sufficiently thin little, and this kind of structure can fully reduce between the cylinder table 317 of mounting seat and upper supporting part
The power transmitted by capping so that it is the error that causes affects for the precision in second-order range, reaches to ignore
Degree.
The present embodiment reduce further the structural requirement to the first precision LOAD CELLS, and simplifies assembly operation, can
Reduce manufacturing cost further.
(embodiment 4)
The present embodiment is substantially the same manner as Example 1, and difference is: as shown in Figure 13 to Figure 16, in the present embodiment,
Guiding traveller 313 is no longer set on the diapire in upper supporting part gusset piece portion.In the present embodiment, the center in gusset piece portion sets
There is adjustment hole 315, the center of the tube shape bulge of lower supporting part, it is provided with from mounting plate portion circular connecting column protruding upward
Platform 334, the roof center of this connection pylon is provided with connection screw 335；Tube shape bulge couples pylon with circle and encloses shape
Circularize stopper slot 336；The bottom of spring is positioned at this annular spacing groove, and is connected to the top of lower supporting part mounting plate portion
On wall, the top of spring is connected on the diapire of upper supporting part.
The present embodiment includes the governor motion 6 for regulating spring heights, and this governor motion includes regulating screw 63, regulation
Screw is sequentially provided with the portion of screwing 631, slide connecting part 632 and the spiro union portion 633 with adjustment hole 315 adaptation from top to bottom, rotation
The external diameter in the portion of twisting is more than the external diameter of slide connecting part, and the shape of slide connecting part is the cylinder that outer wall is smooth；The tune of described upper supporting part
Knothole is stepped hole, is the bigger less slide opening district 3152 of crimping porose area 3151 and aperture, aperture the most successively,
The diapire of crimping porose area is as electrolysis 3153, and slide opening district is the circular hole that hole wall is smooth；Described spiro union portion is spirally connected and is fixed on connection
Connect in the connection screw of pylon；During free state, under the top pressure effect of spring, the portion of screwing is positioned in crimping porose area, and
The diapire screwing portion is crimped on the diapire of crimping porose area, namely on described electrolysis；Slide connecting part is then positioned in slide opening district；
Under external force, slide connecting part can slide up and down in slide opening district, so that upper supporting part can be at regulation screw slide connecting part
Guide effect under move up and down.
This structure connects upper supporting part and lower supporting part by using regulation screw so that elastic supporting piece will not be because of split
And lose parts；Simultaneously by this regulation screw of turn, can directly adjust power of leading pressure contact portion and the lower support of upper supporting part
Clearance distance between power of the leading support of part, its structure comparison compact and reasonable.
(embodiment 5)
The present embodiment is substantially the same manner as Example 4, and difference is: as shown in Figure 17 to Figure 18, due to regulation spiral shell
Follow closely and enclosed Tibetan wherein by upper supporting part and lower supporting part, it is impossible to again tune after overall package, so the tune in the present embodiment
Joint mechanism also includes regulating spiral cover 61 and to top spiral cover 62；The periphery wall propping up spike is provided with the stopper section 52 of evagination, leads
The periphery wall of power pressure contact portion is provided with external screw thread district 314；Governor motion includes regulating spiral cover 61 and to top spiral cover 62, should
The inwall of regulation spiral cover bottom is provided with the annular anticreep pressure contact portion 611 of convex, and the inwall on top is provided with and connects with leading to defeat
The internal threaded regions 612 that external screw thread district of portion is adaptive；Described anticreep pressure contact portion is set in being positioned at below stopper section of lower supporting part
On periphery wall, top spiral cover rotation is located in the external screw thread district leading power support, and is connected to regulate on spiral cover；Masterpiece outside
Under with, described stopper section can slide up and down between power support top leading power pressure contact portion bottom and leading.Under free state,
Under the elastic force effect of spring, anticreep pressure contact portion apical grafting is on stopper section；When gusset piece portion pressure-bearing stress, spring will be subject to
Power shorten, lead power pressure contact portion by drives regulation spiral cover and to push up spiral cover move down, anticreep pressure contact portion 611 now also with under
Move, be positioned at the lower section of stopper section 52.
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 combination type 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 under spring free state, even if so that the present embodiment uses the slightly larger bullet of error
Spring, also has only to regulation spiral cover to be rotated in place, can ensure the concordance of whole height.It addition, this structure is permissible
Make the present embodiment be in whole attached state, will not be scattered mutually and cause losing parts.
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. a modified model combination type LOAD CELLS, it is characterised in that: include mounting seat, the first precision weighing and sensing
Device, elastic supporting piece, the second precision LOAD CELLS and a spike；Elastic supporting piece include upper supporting part, spring and under
Supporting member, the top of spring is connected on upper supporting part, and the bottom of elastic supporting piece is connected on lower supporting part；Described peace
Dress seat, the first precision LOAD CELLS, upper supporting part, spring, lower supporting part, the second precision LOAD CELLS and support
Foot crimps setting successively；Upper supporting part is provided with leads power pressure contact portion, and a spike is provided with leads power support；On the diapire of mounting seat
It is provided with the first deck；First precision LOAD CELLS is provided with the first fixed part, the first load deformations and is arranged on first
The first resistance strain gage in load deformations；First fixed part clamping is arranged in the first deck；First load deformations
Crimping is arranged on upper supporting part；Upper supporting part is provided with gusset piece portion, and the power pressure contact portion of leading is to be downwardly projected shape from gusset piece portion
The annular boss become；First load deformations crimping is arranged on the roof in gusset piece portion；The center of gusset piece portion diapire
It is provided with the guiding traveller being downwardly projected formation；Lower supporting part is provided with mounting plate portion, projects upwards the tool of formation from mounting plate portion
The tube shape bulge having sliding chamber, the second deck being arranged on mounting plate portion diapire；Spring housing is located on tube shape bulge, spring
Top be connected on the diapire in gusset piece portion of upper supporting part, the bottom of spring is connected on the roof of mounting plate portion；Lead
It is positioned in the sliding chamber of tube shape bulge to traveller, and can slide up and down in sliding chamber；Under free state, the power pressure contact portion of leading exceeds
Lead power support；Compression spring during upper supporting part pressure-bearing stress, so drive lead defeat connect subordinate move, when upper supporting part holds
When pressure stress is to predeterminable level, lead to defeat meeting subordinate and move to be crimped on and lead on power support.
Modified model combination type 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 |
|---|---|---|---|
| CN201610096377.0A CN105937942A (en) | 2016-01-20 | 2016-01-20 | Improved combined weighing sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096377.0A CN105937942A (en) | 2016-01-20 | 2016-01-20 | Improved combined weighing sensor |
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| CN105937942A true CN105937942A (en) | 2016-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610096377.0A Pending CN105937942A (en) | 2016-01-20 | 2016-01-20 | Improved combined weighing sensor |
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| JP2000162029A (en) * | 1998-11-24 | 2000-06-16 | Bridgestone Corp | Apparatus for measuring load |
| CN1654931A (en) * | 2004-02-12 | 2005-08-17 | 梅特勒-托莱多有限公司 | Weighing cell module |
| 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 |
| US20100155152A1 (en) * | 2006-01-24 | 2010-06-24 | Pan Weichao | Weighing sensor for an electronic scale provided with the same |
| CN101865235A (en) * | 2010-07-07 | 2010-10-20 | 南京捷诺环境技术有限公司 | Vibration isolation buffer for resisting strong impact |
| CN104838243A (en) * | 2014-07-23 | 2015-08-12 | 王雅苹 | Electronic scale |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000162029A (en) * | 1998-11-24 | 2000-06-16 | Bridgestone Corp | Apparatus for measuring load |
| CN1654931A (en) * | 2004-02-12 | 2005-08-17 | 梅特勒-托莱多有限公司 | Weighing cell module |
| US20100155152A1 (en) * | 2006-01-24 | 2010-06-24 | Pan Weichao | Weighing sensor for an electronic scale provided with the same |
| 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 |
| CN101865235A (en) * | 2010-07-07 | 2010-10-20 | 南京捷诺环境技术有限公司 | Vibration isolation buffer for resisting strong impact |
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Application publication date: 20160914 |