CN209027644U - Strip foil gauge weighing sensor - Google Patents
Strip foil gauge weighing sensor Download PDFInfo
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- CN209027644U CN209027644U CN201821820042.XU CN201821820042U CN209027644U CN 209027644 U CN209027644 U CN 209027644U CN 201821820042 U CN201821820042 U CN 201821820042U CN 209027644 U CN209027644 U CN 209027644U
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Abstract
The utility model proposes a kind of strip foil gauge weighing sensors, it includes bottom plate, top plate, side plate and elastomer, backplate surface fixes both side plate, and elastomer is set to backplate surface and between both side plate, and top plate is attached to elastomeric apex surface and between both side plate；It is characterized by also including several resistance strain gages, elastomer is internally provided with several cavitys, and resistance strain gage is attached to cavity surface.The utility model can be effectively isolated the intracorporal space of elasticity, prevent elastomer by the interference of ambient temperature, humidity by the way that top plate and bottom plate and side plate is arranged in elastomer periphery；Using resistance strain gage as weight detecting element, detecting element is hardly damaged, and can avoid frequent maintenance and maintenance；The case where shield can protect ceiling edge, discontinuity caused by preventing top plate damaged；End caps use fabricated structure, and sealing effect is good.
Description
Technical field
The utility model relates to sensor technical field more particularly to a kind of strip foil gauge weighing sensors.
Background technique
With the continuous development of national economy, the infrastructure construction in China and logistic industry enter a quickly hair
The duration of an exhibition.To realize supervision to overload of vehicle phenomenon in Road Overload detection, the transport of logistic industry, storage, carrying, packaging,
The application scenarios such as dispatching, need frequently to carry out weighing operation, to people to quick, reliable, accurately dynamic weighing demand
It is increasing.Traditional weighing sensing element, such as piezoelectric ceramics or quartz, directly with carrying face contact, this directly measurement side
Formula easilys lead to weighing sensing element damage, causes maintenance cost higher；And existing weighing sensor is vulnerable to external environment
Interference, measurement effect are not ideal enough.
Utility model content
In view of this, the utility model proposes a kind of detection of non-direct contact type, weighing induction component are affected by environment
Small, uniform force and strip foil gauge weighing sensor with long service life.
The technical solution of the utility model is achieved in that the utility model provides a kind of strip foil gauge weighing biography
Sensor, including bottom plate (1), top plate (2), both side plate (3) and elastomer (4), bottom plate (1) surface is fixed both side plate (3), elasticity
Body (4) is set to bottom plate (1) surface and between both side plate (3), and top plate (2) is attached to elastomer (4) top surface and position
Between both side plate (3)；It is characterized by also including several resistance strain gages (6), elastomer (4) is internally provided with several skies
Chamber (40), resistance strain gage (6) are attached to cavity (40) surface.
On the basis of above technical scheme, it is preferred that the elastomer (4) includes top connection sheet (41), bottom company
Contact pin (42), the first link block (43), the second link block (44) and intermediate connection sheet (5), the upper surface of top connection sheet (41)
It is bonded with the bottom surface of top plate (2)；The lower surface of bottom tabs (42) is bonded with the upper surface of bottom plate (1)；Top connection sheet
(41) it is provided between bottom tabs (42) intermediate connection sheet (5), connection sheet (41) bottom in top passes through the first link block
(43) it is connect at the top of intermediate connection sheet (5), the bottom of intermediate connection sheet (5) passes through the second link block (44) and bottom tabs
(42) top connection.
On the basis of above technical scheme, it is preferred that be equipped with middle cavity at intermediate connection sheet (5) center
(400), the outside of intermediate connection sheet (5) is also symmetrically arranged with left side cavity (401) and right side cavity (402), left side cavity
(401), resistance-strain is symmetrically arranged on middle cavity (400) and right side cavity (402) and the contact surface of intermediate connection sheet (5)
Piece (6).
It is further preferred that the left side cavity (401) and right side cavity (402) are by the bottom of top connecting plate (41)
Face, the side of side plate (3), the upper surface of bottom connecting plate (42), the lateral surface of the second link block (44), intermediate connection sheet (5)
Lateral surface and the first link block (43) lateral surface sequence surround and formed.
Still more preferably, the side of first link block (43) is symmetrically arranged with apex cavity (403), and second connects
The side for connecing block (44) is symmetrically arranged with bottom cavity (404), and apex cavity (403) is by the bottom surface of top connection sheet (41),
The side of one link block (43) is connected to the top surface of intermediate connection sheet (5), and bottom cavity (404) is by the top of bottom tabs (42)
Face, the second link block (44) side be connected to the bottom surface of intermediate connection sheet (5).
On the basis of above technical scheme, it is preferred that the strip foil gauge weighing sensor further includes both ends cover
Plate (7), end caps (7) are arranged at the both ends of elastomer (4), and the side of end caps (7) is connect with side plate (3) respectively, end
The top surface of surface cover (7) is connect with top plate (2) bottom, is connect at the top of end caps (7) bottom and bottom plate (1).
It is further preferred that the end caps (7) include upper cover plate (71) and lower cover plate (72), upper cover plate (71) setting
On lower cover plate (72)；The bottom of upper cover plate (71) is provided with positioning groove (73), and lower cover plate is provided with positioning at the top of (72)
Boss (74), positioning groove (73) match with the shape of positioning convex platform (74).
Still more preferably, it is additionally provided with signal terminal (75) and ground terminal (76) on the end caps (7), believed
Number output end of the terminal (75) respectively with external power supply, the input terminal of resistance strain gage (6) and resistance strain gage (6) electrically connects
It connects, ground terminal (76) ground connection.
On the basis of above technical scheme, it is preferred that the strip foil gauge weighing sensor further includes shield
(8), shield (8) includes lateral coaming plate (81) and top girth plate (82), and lateral coaming plate (81) is arranged around side plate (3), lateral coaming plate (81)
Top is provided with top girth plate (82), is connect on the inside of top girth plate (82) with top plate (2) top surface.
On the basis of above technical scheme, it is preferred that contact surface, the elastomer of the elastomer (4) and bottom plate (1)
(4) it and is provided with dovetail groove (9) on the contact surface of top plate (2), it is right with dovetail groove (9) to be provided on bottom plate (1), top plate (2)
The boss (10) answered.
Strip foil gauge weighing sensor provided by the utility model has the advantages that compared with the existing technology
(1) by the way that top plate and bottom plate and side plate is arranged in elastomer periphery, the intracorporal space of elasticity can be carried out effectively every
From, prevent elastomer by the interference of ambient temperature, humidity, improve the accuracy of weighing sensor measurement, weighing sensor without
It need to carry out temperature-compensating；
(2) using resistance strain gage as weight detecting element, resistance strain gage is arranged in the intracorporal intermediate connection sheet of elasticity,
Measuring signal is exported by the deformation of elastomer, rather than directly bears the impact of weight, weight detecting element is hardly damaged,
It can avoid frequent maintenance and maintenance；
(3) the case where shield can protect ceiling edge, discontinuity caused by preventing top plate damaged；
(4) end caps use fabricated structure, and sealing effect is good, can effectively completely cut off dust, steam etc. and connect into centre
Inside contact pin；
(5) signal terminal being arranged on end caps while the function that there is voltage input and resistance strain gage signal to export
Can, this structure can simplify sensor structure, optimize sensor cabling and layout；
(6) a plurality of cavities are set on elastomer, and each cavity is relatively independent and ambient stable, not only can guarantee the stabilization of measurement
Property, structure can also mitigate the direct impact of external pressure, extend the service life of sensor.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the perspective view of the utility model strip foil gauge weighing sensor；
Fig. 2 is that the utility model removes the perspective view after shield；
Fig. 3 is a kind of positive view of the structure of elastomer；
Fig. 4 is the positive view of another elastomer structure；
Fig. 5 is the positive view of another elastomer structure；
Fig. 6 is that the utility model removes the main view after shield；
Fig. 7 is that the utility model removes the rearview after shield；
Fig. 8 is the perspective view of upper cover plate；
Fig. 9 is the perspective view of lower cover plate.
Specific embodiment
Below in conjunction with the utility model embodiment, the technical solution in the utility model embodiment is carried out clear
Chu is fully described by, it is clear that and described embodiment is only a part of embodiment of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work
Under the premise of every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, in conjunction with Fig. 2, strip foil gauge weighing sensor provided by the utility model comprising bottom plate 1, top
Plate 2, side plate 3, elastomer 4, resistance strain gage 6, end caps 7 and shield 8.
Both side plate 3 is fixed on 1 surface of bottom plate, and elastomer 4 is set to 1 surface of bottom plate and between both side plate 3, and top plate 2 is attached
In 4 top surface of elastomer and between both side plate 3.Bottom plate 1 is side plate 3, top plate 2, elastomer 4, end caps 7 and prevents
Shield 8 provides support, is the installation foundation of strip foil gauge weighing sensor；Top plate 2 is the stressed member on road surface, is directly born
The pressure of object to be weighed.2 collective effect of bottom plate 1 and top plate can make elastomer 4 between bottom plate 1 and top plate 2 vertical
Uniform force.
As shown in Fig. 3 combination Fig. 4, Fig. 5, elastomer 4 includes top connection sheet 41, bottom tabs 42, the first link block
43, the second link block 44 and intermediate connection sheet 5, the upper surface of top connection sheet 41 is bonded with the bottom surface of top plate 2；Bottom tabs
42 lower surface is bonded with the upper surface of bottom plate 1；Intermediate connection sheet is provided between top connection sheet 41 and bottom tabs 42
5, by connecting at the top of the first link block 43 and intermediate connection sheet 5, the bottom of intermediate connection sheet 5 passes through 41 bottom of top connection sheet
It is connected at the top of second link block 44 and bottom tabs 42.Several cavitys 40, resistance strain gage 6 are additionally provided with inside elastomer 4
It is attached to 40 surface of cavity.
The pressure of weight body to be measured passes to the top of intermediate connection sheet 5, bottom through top connection sheet 41, the first link block 43
The reaction force that plate 1 is born passes to the bottom of intermediate connection sheet 5, centre connection through bottom tabs 42 and the second link block 44
After the stress symmetrical above and below of piece 5, small deformation can occur for cavity 40, which can be detected by resistance strain gage 6, from
And it exports and is further analyzed as inspection signal.
Fig. 3 illustrates a kind of structure of intermediate connection sheet 5, and intermediate connection sheet 5A is annular, and the center is equipped with intermediate empty
Chamber 400A；Middle cavity 400A is circle；Left side cavity 401A and right side cavity are symmetrically arranged on the outside of intermediate connection sheet 5A
It is symmetrical arranged on the contact surface of 402A, left side cavity 401A, middle cavity 400A and right side cavity 402A and intermediate connection sheet 5A
There is resistance strain gage 6.Left side cavity 401A and right side cavity 402A is bottom surface, the side by top connecting plate 41 in the present embodiment
The side of plate 3, the upper surface of bottom connecting plate 42, the lateral surface of the second link block 44, the lateral surface of intermediate connection sheet 5A and the
The lateral surface sequence of one link block 43 is surrounded and is formed.
Fig. 4 illustrates another structure of intermediate connection sheet 5, and intermediate connection sheet 5B is rectangle, and the center is equipped with centre
Cavity 400B, middle cavity 400B are dumb-bell shape；Left side cavity 401B and right side are symmetrically arranged on the outside of intermediate connection sheet 5B
It is symmetrical on the contact surface of cavity 402B, left side cavity 401B, middle cavity 400B and right side cavity 402B and intermediate connection sheet 5B
It is provided with resistance strain gage 6.In the present embodiment left side cavity 401B and right side cavity 402B be by top connecting plate 41 bottom surface,
The side of side plate 3, the upper surface of bottom connecting plate 42, the lateral surface of the second link block 44, intermediate connection sheet 5B lateral surface and
The lateral surface sequence of first link block 43 is surrounded and is formed.
It is uniform to be conducive to intermediate connection sheet 5B vertical applied force for the dumbbell-shaped structure of middle cavity 400B, and to vertical shape
Change plus sensitivity, can be improved the detection accuracy of resistance strain gage 6.
Fig. 5 illustrates another structure of intermediate connection sheet 5, and intermediate connection sheet 5C is rectangle, and the center is equipped with centre
Cavity 400C, middle cavity 400C are circle；The two sides of intermediate connection sheet 5C are additionally provided with semicircular groove 51；It is intermediate empty
Chamber 400C is circle, and left side cavity 401C and right side cavity 402C, left side cavity are symmetrically arranged on the outside of intermediate connection sheet 5C
Resistance strain gage is symmetrically arranged on the contact surface of 401C, middle cavity 400C and right side cavity 402C and intermediate connection sheet 5C
6.It is symmetrically arranged with apex cavity 403 in the side of the first link block 43, the side of the second link block 44 is symmetrically arranged with bottom
Cavity 404, apex cavity 403 is by the bottom surface of top connection sheet 41, the top surface of the side of the first link block 43 and intermediate connection sheet 5
Connection, bottom cavity 404 connect the bottom surface of the top surface of bottom tabs 42, the side of the second link block 44 and intermediate connection sheet 5
It is logical.Left side cavity 401C and right side cavity 402C is the bottom of side by apex cavity 403, top connecting plate 41 in the present embodiment
The lateral surface in face, the side of side plate 3, the upper surface of bottom connecting plate 42, the side of bottom cavity 404 and intermediate connection sheet 5C
(containing semi-circular recesses 51) sequentially surrounds and is formed.
It is symmetrical in left side cavity 401C and right side cavity 402C structure, the intermediate connection sheet 5C can be made vertical and horizontal direction
Stress more balances, and the detection accuracy of resistance strain gage 6 can be improved.In addition, semicircular groove 51 can slow down the direct of external force
Impact adjusts the strain amplitude of elastomer 4, adapts it to larger range of weighing measurement, improve the sensitivity of sensor and make
Use the service life.
As shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9, strip foil gauge weighing sensor further includes both ends surface cover 7, end face lid
The both ends of elastomer 4 are arranged in plate 7, and the side of end caps 7 is connect with side plate 3 respectively, the top surface of end caps 7 and top plate 2
Bottom connects, and connects at the top of 7 bottom of end caps and bottom plate 1.
Further, end caps 7 include upper cover plate 71 and lower cover plate 72, and upper cover plate 71 is arranged on lower cover plate 72；On
The bottom of cover board 71 is provided with positioning groove 73, and the top of lower cover plate 72 is provided with positioning convex platform 74, positioning groove 73 and positioning
The shape of boss 74 matches.
Further, 75 He of signal terminal is additionally provided on the end caps 7 of strip foil gauge weighing sensor side
Ground terminal 76, the output end with external power supply, the input terminal of resistance strain gage 6 and resistance strain gage 6 respectively of signal terminal 75
It is electrically connected, ground terminal 76 is grounded.
Confined space made of end caps 7 and bottom plate 1, top plate 2 and side plate 3 surround, can effectively by elastomer 4 and in
Between connection sheet 5 be isolated, avoid elastomer 4 and intermediate connection sheet 5 by factors such as external temperature, humidity, steam and dusts
Interference, be always metastable environment inside elastomer 4, it is ensured that the accuracy of weight detecting.Signal terminal 75 while energy
Enough it is 6 input supply voltage of resistance strain gage, while the feedback signal of the sending of resistance strain gage 6 can be transmitted, input, output is conllinear
Setting can simplify sensor structure, improve the cabling layout of strip foil gauge weighing sensor.
As shown in Figure 1, the utility model further includes shield 8, shield 8 includes lateral coaming plate 81 and top girth plate 82, side wall
Plate 81 is arranged around side plate 3, is provided with top girth plate 82 at the top of lateral coaming plate 81,82 bottom surface of top girth plate is connect with 2 top surface of top plate.It is anti-
Shield 8 can play defencive function to side plate 3 and top plate 2, avoid the edge breakage bring measured deviation of side plate 3 and top plate 2.
Dovetail groove 9, bottom plate are additionally provided on the contact surface of the contact surface of elastomer 4 and bottom plate 1, elastomer 4 and top plate 2
1, boss 10 corresponding with dovetail groove 9 is provided on top plate 2.Dovetail groove matches with 10 shape of boss, can be improved elastomer
4 and bottom plate 1 and top plate 2 combination effect, prevent bottom plate 1 and top plate 2 from shaking, improve the accuracy of weighing measurement.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all
Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on
Within the protection scope of type.
Claims (10)
1. a kind of strip foil gauge weighing sensor, including bottom plate (1), top plate (2), both side plate (3) and elastomer (4), bottom plate
(1) surface is fixed both side plate (3), and elastomer (4) is set to bottom plate (1) surface and between both side plate (3), and top plate (2) is attached
In elastomer (4) top surface and between both side plate (3)；It is characterized by also including several resistance strain gages (6),
Elastomer (4) is internally provided with several cavitys (40), and resistance strain gage (6) is attached to cavity (40) surface.
2. strip foil gauge weighing sensor as described in claim 1, it is characterised in that: the elastomer (4) includes top
Connection sheet (41), bottom tabs (42), the first link block (43), the second link block (44) and intermediate connection sheet (5), top connects
The upper surface of contact pin (41) is bonded with the bottom surface of top plate (2)；The lower surface of bottom tabs (42) and the upper surface of bottom plate (1) are pasted
It closes；It is provided between top connection sheet (41) and bottom tabs (42) intermediate connection sheet (5), connection sheet (41) bottom in top is logical
It crosses at the top of the first link block (43) and intermediate connection sheet (5) and connect, the bottom of intermediate connection sheet (5) passes through the second link block (44)
It is connect with bottom tabs (42) top.
3. strip foil gauge weighing sensor as claimed in claim 2, it is characterised in that: intermediate connection sheet (5) center
Place is equipped with middle cavity (400), and the outside of intermediate connection sheet (5) is also symmetrically arranged with left side cavity (401) and right side cavity
(402), symmetrical on left side cavity (401), middle cavity (400) and right side cavity (402) and the contact surface of intermediate connection sheet (5)
It is provided with resistance strain gage (6).
4. strip foil gauge weighing sensor as claimed in claim 3, it is characterised in that: the left side cavity (401) and the right side
Side cavity (402) is by the bottom surface of top connection sheet (41), the side of side plate (3), the upper surface of bottom tabs (42), second
The lateral surface sequence of the lateral surface of link block (44), the lateral surface of intermediate connection sheet (5) and the first link block (43) is surrounded and shape
At.
5. strip foil gauge weighing sensor as claimed in claim 3, it is characterised in that: the side of first link block (43)
Face is symmetrically arranged with apex cavity (403), and the side of the second link block (44) is symmetrically arranged with bottom cavity (404), and top is empty
The side of the bottom surface of top connection sheet (41), the first link block (43) is connected to by chamber (403) with the top surface of intermediate connection sheet (5),
Bottom cavity (404) is by the top surface of bottom tabs (42), the bottom surface of the side of the second link block (44) and intermediate connection sheet (5)
Connection.
6. strip foil gauge weighing sensor as described in claim 1, it is characterised in that: it further include both ends surface cover (7), end
Surface cover (7) is arranged at the both ends of elastomer (4), and the side of end caps (7) is connect with side plate (3) respectively, end caps (7)
Top surface connect with top plate (2) bottom, connect at the top of end caps (7) bottom and bottom plate (1).
7. strip foil gauge weighing sensor as claimed in claim 6, it is characterised in that: the end caps (7) include upper
Cover board (71) and lower cover plate (72), upper cover plate (71) are arranged on lower cover plate (72)；The bottom of upper cover plate (71) is provided with positioning
Groove (73) is provided with positioning convex platform (74) at the top of lower cover plate (72), the shape of positioning groove (73) and positioning convex platform (74)
It matches.
8. strip foil gauge weighing sensor as claimed in claim 6, it is characterised in that: also set on the end caps (7)
It is equipped with signal terminal (75) and ground terminal (76), signal terminal (75) input with external power supply, resistance strain gage (6) respectively
The output end of end and resistance strain gage (6) is electrically connected, ground terminal (76) ground connection.
9. strip foil gauge weighing sensor as described in claim 1, it is characterised in that: further include shield (8), shield
It (8) include lateral coaming plate (81) and top girth plate (82), lateral coaming plate (81) is arranged around side plate (3), is provided at the top of lateral coaming plate (81)
Top girth plate (82), top girth plate (82) inside are connect with top plate (2) top surface.
10. strip foil gauge weighing sensor as described in claim 1, it is characterised in that: the elastomer (4) and bottom plate
(1) it is provided with dovetail groove (9) on the contact surface of contact surface, elastomer (4) and top plate (2), bottom plate (1), top plate are set on (2)
It is equipped with boss (10) corresponding with dovetail groove (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821820042.XU CN209027644U (en) | 2018-11-06 | 2018-11-06 | Strip foil gauge weighing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821820042.XU CN209027644U (en) | 2018-11-06 | 2018-11-06 | Strip foil gauge weighing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209027644U true CN209027644U (en) | 2019-06-25 |
Family
ID=66910273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821820042.XU Active CN209027644U (en) | 2018-11-06 | 2018-11-06 | Strip foil gauge weighing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209027644U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174886A (en) * | 2019-10-11 | 2020-05-19 | 宁波柯力传感科技股份有限公司 | Vehicle-mounted self-stabilizing weighing sensor |
| CN112729507A (en) * | 2019-10-14 | 2021-04-30 | 同济大学 | Road surface dynamic monitoring device and system |
-
2018
- 2018-11-06 CN CN201821820042.XU patent/CN209027644U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174886A (en) * | 2019-10-11 | 2020-05-19 | 宁波柯力传感科技股份有限公司 | Vehicle-mounted self-stabilizing weighing sensor |
| CN111174886B (en) * | 2019-10-11 | 2021-06-29 | 宁波柯力传感科技股份有限公司 | Vehicle-mounted self-stabilizing weighing sensor |
| CN112729507A (en) * | 2019-10-14 | 2021-04-30 | 同济大学 | Road surface dynamic monitoring device and system |
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