CN107764354A - A kind of water-proof weight sensor - Google Patents
A kind of water-proof weight sensor Download PDFInfo
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- CN107764354A CN107764354A CN201711019543.8A CN201711019543A CN107764354A CN 107764354 A CN107764354 A CN 107764354A CN 201711019543 A CN201711019543 A CN 201711019543A CN 107764354 A CN107764354 A CN 107764354A
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- Prior art keywords
- sensor
- weighing
- housing
- detecting head
- water
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/14—Casings, e.g. of special material
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention belongs to sensor technical field, a kind of water-proof weight sensor is provided, including the weighing sensor provided with resistance strain gage, pressure sensor, temperature sensor, housing and detecting head of weighing, temperature sensor, pressure sensor, weighing sensor is respectively to measure the temperature for flowing through the water weighed on detecting head, the sensor of pressure and parameter of weighing, bellows is sequentially provided with from outside to inside in the cavity of housing, spring skeleton and above-mentioned weighing sensor, bellows-sheathed is attached to spring skeleton outer wall, one end of weighing sensor is connected with above-mentioned detecting head of weighing, detecting head of weighing is located at the outside of housing and hanging, resistance strain gage, pressure sensor, temperature sensor is connected by lead with control circuit respectively.The present invention realizes weighing sensor waterproof, and IP68 protective capacities can be achieved, be widely used in wet environment and liquid, and there are very strong promotion and application to be worth.
Description
Technical field
The invention belongs to sensor technical field, is related to a kind of weighing sensor, especially a kind of water-proof weight sensor.
Background technology
Weighing sensor is widely used in electronic scale and various occasions of weighing.But due to being provided with weighing sensor
Accurate deformation resistance bridge, can not work in wet environment and liquid, if sealed using ebonite sealing or firmware, all by shadow
The accurate deformation to weighing sensor is rung, influences the accuracy of measurement.
The content of the invention
The purpose of the present invention is the problem of presence for above-mentioned weighing sensor, there is provided a kind of water-proof weight sensor, can
IP68 protective capacities is realized, can be widely applied in wet environment and liquid, is particularly suitable for the flow measurement to pipeline fluid；
A kind of metering water meter of application water-proof weight sensor is provided simultaneously.
To achieve the above object, the present invention provides following technical scheme：A kind of water-proof weight sensor, including provided with resistance
Weighing sensor, pressure sensor, temperature sensor, housing and the detecting head of weighing of foil gauge, temperature sensor, pressure sensing
Device, weighing sensor respectively measure the sensor of the temperature for flowing through the water weighed on detecting head, pressure and parameter of weighing, housing
Cavity in be sequentially provided with bellows, spring skeleton and above-mentioned weighing sensor from outside to inside, bellows-sheathed is attached to spring bone
Frame outer wall, one end of weighing sensor are connected with above-mentioned detecting head of weighing, and detecting head of weighing is located at the outside of housing and hanging,
Weighing sensor both ends are provided with step surface, and the both ends of bellows are respectively equipped with closing in face, and closing in face is compressed by fastener respectively
On the step surface at weighing sensor both ends；Resistance strain gage, pressure sensor, temperature sensor pass through lead and control respectively
Circuit is connected, and weight is obtained to the parameter of weighing on detecting head of weighing, and temperature, pressure parameter computing by control circuit
Value.
Both ends for bellows are respectively equipped with closing in face, and closing in face is pressed on weighing sensor two by fastener respectively
On the step surface at end, resistance strain gage is enclosed in the environment of a closing by bellows, ensure that water resistance, can extensive use
In wet environment and liquid.When weigh detecting head stress after, drive weighing sensor, spring skeleton, bellows produce elasticity
Deformation, resistance strain gage, which deforms and exports electric signal, realizes weighing measurement.After external force cancels, weighing sensor, spring skeleton,
Caused by bellows elastic deformation recover, so as to realize the waterproofing protection to internal electronic component, do not influence weighing precision and
Accuracy.
When it is implemented, one end inwall of housing is provided with internal thread, one end provided with externally threaded closure precession housing,
The end face of closure holds out against the closing in face of bellows one end on the step surface of weighing sensor one end；Weighing sensor is another
End is provided with compact heap, compact heap and the enjoyable cooperation of the weighing sensor other end, and the closing in face of the bellows other end is held out against and claimed
On the step surface for retransmitting the sensor other end.
When it is implemented, weighing sensor is connected by metal stretching pipe with detecting head of weighing, temperature sensor and pressure
Force snesor is located on metal stretching pipe.
When it is implemented, the outside of housing is provided with cover body, the one end open of cover body, opening is fixed with end cap, spy of weighing
The housing at gauge head end passes through end cap, and motor, the circuit board provided with control circuit, battery, motor and control are respectively equipped with cover body
Circuit is connected, and the power transmission shaft of motor is provided with master gear, and corresponding housing is provided with the external gear being meshed with master gear, electricity
Machine rotates, and can drive housing into rotation.
Water-proof weight sensor of the present invention may be used on metering water meter, and it includes water inlet end and water side, water inlet end and
Valve housing is provided between water side, valve housing is fixedly connected with the casing, and sealing ring is provided between valve housing and housing, spy of weighing
Gauge head is located at the interior intracavitary of valve housing, and water enters from water inlet end, flows into detecting head of weighing, realize the metering of flow.Outside valve
Valve is provided with shell, valve is connected with shell end, and after motor rotates, housing realizes the opening and closing of valve with movable valve.
The beneficial effects of the invention are as follows：The present invention realizes weighing sensor waterproof, and IP68 protective capacities can be achieved, extensively should
For in wet environment and liquid, be particularly suitable for pipeline fluid measurement, weighbridge, vehicle self-carrying pound weighing measurement, have it is very strong
Promotion and application value.
Brief description of the drawings
Fig. 1 is water-proof weight sensor construction schematic diagram of the present invention；
Fig. 2 is that water-proof weight sensor of the present invention is used for small-bore flow measurement and drives the operating diagram of ball valve.
In figure：1.0 weighing sensors, 1.1 resistance strain gages, 1.2 entrance holes, 1.4 line outlets, 1.5 lock nuts；2.0
Metal stretching pipe, 2.1 pressure sensors, 2.2 temperature sensors, 2.3 compact heaps.3.0 bellowss, 3.1 closing in faces；4.0 spring
Skeleton；5.0 housings, 5.1 closures, 5.2 sealing rings, 5.3 installation screw threads, 5.4 external gears, 5.5 installation sealing rings, 5.6 sealings
Packing ring；6.0 weigh detecting head；7.0 cover bodies, 7.1 end caps, 7.2 rubber seal；8.0 valve housings, 8.1 valve housing lids,
8.2 exterior seal rings, 8.3 valves, 8.4 valve valve ball rings, 8.5 inner seal rings；9.0 motors, 9.1 master gears, 10 control circuits, 11
Battery.0.0 water inlet end, 0.1 water side.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment：
Referring to Fig. 1, with reference to Fig. 2, a kind of water-proof weight sensor, including the weighing and sensing provided with resistance strain gage 1.1
Device 1.0, pressure sensor 2.1, temperature sensor 2.2, housing 5.0 and detecting head 6.0 of weighing, resistance strain gage 1.1 are arranged on
In the groove on the top of weighing sensor 1.0, temperature sensor 2.2, pressure sensor 2.1, weighing sensor 1.0 are respectively to measure
Flow through the sensor of the temperature of the water on detecting head 6.0 of weighing, pressure and parameter of weighing, in the cavity of housing 5.0 from outside to inside
Bellows 3.0, spring skeleton 4.0 and weighing sensor 1.0 are sequentially provided with, 3.0 sets of bellows is attached to the outer wall of spring skeleton 4.0,
Weighing sensor 1.0 is connected by metal stretching pipe 2.0 with detecting head 6.0 of weighing, temperature sensor 2.2 and pressure sensor
2.1 on the metal stretching pipe, and detecting head 6.0 of weighing is located at the outside of housing 5.0 and hanging, and the both ends of weighing sensor 6.0 are set
There is step surface, the both ends of bellows 3.0 are respectively equipped with closing in face 3.1, and one end inwall of housing 5.0 is provided with internal thread, provided with outer
The closing in face 3.1 of the one end of bellows 3.0 is pushed up in one end of the precession housing 5.0 of closure 5.1 of screw thread, the end face of closure 5.1
Tightly on the step surface of the one end of weighing sensor 1.0, sealing ring 5.2, lock nut 1.5 are provided between closure 5.1 and housing 5.0
Press closer on closure 5.1；The other end of weighing sensor 1.0 is provided with compact heap 2.3, and compact heap 2.3 and weighing sensor 1.0 are another
The enjoyable cooperation in one end, the closing in face 3.1 of the other end of bellows 3.0 is held out against on the step surface of the other end of weighing sensor 1.0,
Closing in face 3.1 is pressed on the step surface at the both ends of weighing sensor 1.0 by the fastener of closure 5.1 and compact heap 2.3 respectively
On；Pressure sensor 2.1 is deformation resistance pressure transmitter, resistance strain gage 1.1, pressure sensor 2.1, temperature sensor
2.2 are connected by lead with control circuit 10 respectively, by control circuit to the parameter of weighing on detecting head 1.0 of weighing, with
And temperature, pressure parameter computing obtain gravimetric value.Weighing sensor 1.0 is provided with entrance hole 1.2 and line outlet 1.4, for drawing
Line is connected with control circuit；The end outer wall of detecting head 6.0 of weighing of housing 5.0 is provided with installation screw thread 5.3, and installation screw thread 5.3 is used
In the installation of application product；The both ends of bellows 2.2 are respectively equipped with closing in face 3.1, and closing in face 3.1 passes through closure 5.1 respectively
It is pressed on the fastener of compact heap 2.3 on the step surface at the both ends of weighing sensor 1.0, resistance strain gage 1.1 is by bellows 3.0
The environment of a closing is enclosed in, water resistance is ensure that, can be widely applied in wet environment and liquid.When detecting head of weighing
After 6.0 stress, weighing sensor 1.0, spring skeleton 4.0, bellows 3.0 is driven to produce elastic deformation, resistance strain gage 1.1 becomes
Shape simultaneously exports electric signal and realizes weighing measurement.After external force cancels, weighing sensor 1.0, spring skeleton 4.0, bellows 3.0 produce
Raw elastic deformation recovers, and so as to realize the waterproofing protection to internal electronic component, does not influence weighing precision and accuracy.
Reference picture 2 and Fig. 1, water-proof weight sensor of the present invention is used for small-bore flow measurement and drives ball valve, including enters
Water end (W.E.) 0.0 and water side 0.1, the outside of housing are provided with cover body 7.0, the one end open of cover body 7.0, and opening is fixed with end cap
7.1, rubber seal 7.2 is provided between the inwall of end cap 7.1 and cover body 7.0, and the housing 5.0 for detection head end of weighing passes through end cap
7.1, motor 9.0, the circuit board provided with control circuit 10, battery 11, motor 9.0 and control circuit are respectively equipped with cover body 7.0
10 are connected, and the power transmission shaft of motor 9.0 is provided with master gear 9.1, and corresponding housing 5.0 is provided with external gear 5.4, master gear
Deceleration unit is provided between 9.1 and external gear 5.4, motor 9.0 is rotated, and housing 5.0 can be driven to rotate.Water inlet end 0.0 and water side
Valve housing 8.0 is provided between 0.1, water inlet end 0.0 and water side 0.1 are made up of valve housing lid 8.1 respectively, valve housing 8.0
Inner seal ring 8.5 and exterior seal ring 8.2 are provided between water inlet end 0.0, interior sealing is provided between valve housing 8.0 and water side 0.1
Circle 8.5 and exterior seal ring 8.2, valve housing 8.0 are fixedly connected with housing 5.0, are provided between valve housing 8.0 and housing 5.0 close
Seal washer 5.6, detecting head 6.0 of weighing are located at the interior intracavitary of valve housing 8.0, and water enters from water inlet end, flows into detecting head of weighing
6.0, realize the metering of flow.Valve 8.3 and valve valve ball ring 8.4, valve 8.0 and the end of housing 5.0 are provided with valve housing 8.0
The installation screw thread 5.3 in portion is threadedly coupled, and after motor 9.0 rotates, housing 5.0 realizes the opening and closing of valve with movable valve 8.3.
In the present embodiment, valve shaft-like is made into the front end of housing 5.0, by being passed through after seal washer 5.6 outside valve
Shell 8.0, and floating type connection is carried out with valve 8.3, the both sides of valve 8.3 are valve ball ring 8.4 and pass through inner seal ring 8.5 and housing
Sealing, and among valve housing 8.0 and valve housing lid 8.1, sealed by valve exterior seal ring 8.2.
When motor 9.0 and deceleration unit, which receive control circuit 10, sends instruction, master gear 9.1 is driven to rotate, housing 5.0
On external gear 5.4 rotate with, so as to movable valve 8.3 be rotated by 90 ° realize close or open valve action, battery 11
Power is provided.When fluid passes through water inlet end 0.0, it is applied to and weighs on detecting head 6.0, detecting head 6.0 of weighing drives bellows
3.0th, spring skeleton 4.0 and weighing sensor 1.0, resistance strain gage 1.1 etc. are deformed, the sending signal of resistance strain gage 1.1,
The electric signal sent with reference to temperature sensor 2.2 and pressure sensor 2.1 that the lead by entrance hole 1.5 transmits, passes through control
The sequential operation of circuit 10 processed, by detect bar 6.0 transmit come weight signal, integrated with the time, obtain fluid flow
Data.
Water-proof weight sensor whole group is fixed on heavy caliber fluid line by installing screw thread 5.3, it is close by installing
Seal 5.5 seals, and the detecting head 6.0 of weighing inside pipeline is driven the deformation of resistance strain gage 1.1 and sent out by fluid matasomatism
Signal, by demarcating computing, the flow of fluid can be calculated.The inner side of metal stretching pipe 2.0, post pressure sensor 2.1
Deformation resistance, for pressure detecting, when environmental pressure causes metal stretching pipe 2.0 internally to deform, pressure sensor 2.1
The sending signal of deformation resistance 2.1, by demarcation, environmental pressure model can be obtained, similarly, temperature sensor 2.2 send out ring
Border temperature signal, and by line outlet 1.4 and entrance hole 1.2 by signal output to control circuit 10.It can be seen by embodiment
Go out, the resistance strain gage 1.1 of water-proof weight sensor 1.0 is the environment that a closing is enclosed in by bellows 3.0, when by outer
During portion's pressure, spring skeleton 4.0 is played a supporting role, and is unlikely to influence weighing sensor 1.0.As a result of ripple struction and
Spring structure, after hanging one end detects 6.0 stress of bar, bellows 3.0 and spring skeleton 4.0 deform upon, but detect
After the revocation of the stress of bar 6.0, all deformation recover ortho states, will not cause the influence to measurement result.
Claims (4)
1. a kind of water-proof weight sensor, including the weighing sensor provided with resistance strain gage, pressure sensor, TEMP
Device, housing and detecting head of weighing, temperature sensor, pressure sensor, weighing sensor are respectively that metering flows through detecting head of weighing
On the temperature of water, the sensor of pressure and parameter of weighing, be sequentially provided with bellows, spring bone from outside to inside in the cavity of housing
Frame and above-mentioned weighing sensor, bellows-sheathed are attached to spring skeleton outer wall, and one end of weighing sensor is connected with above-mentioned title
Weight detecting head, detecting head of weighing are located at the outside of housing and hanging, and weighing sensor both ends are provided with step surface, the both ends of bellows
The closing in face of being respectively equipped with, closing in face are pressed on the step surface at weighing sensor both ends by fastener respectively；Resistance strain gage,
Pressure sensor, temperature sensor are connected by lead with control circuit respectively, by control circuit to weighing on detecting head
Parameter of weighing, and temperature, pressure parameter computing obtain gravimetric value.
A kind of 2. water-proof weight sensor according to claim 1, it is characterised in that：One end inwall of housing is provided with interior spiral shell
Line, one end provided with externally threaded closure precession housing, the end face of closure, which holds out against the closing in face of bellows one end, to be claimed
On the step surface for retransmitting sensor one end；The weighing sensor other end is provided with compact heap, compact heap and weighing sensor other end mistake
Addiction coordinates, and the closing in face of the bellows other end is held out against on the step surface of the weighing sensor other end.
A kind of 3. water-proof weight sensor according to claim 1, it is characterised in that：Weighing sensor passes through metal stretching
Manage and be connected with detecting head of weighing, temperature sensor and pressure sensor are located on metal stretching pipe.
A kind of 4. water-proof weight sensor according to claim 1,2 or 3, it is characterised in that：The outside of housing is provided with cover
Body, the one end open of cover body, opening are fixed with end cap, and the housing for detection head end of weighing passes through end cap, is respectively equipped with cover body
Motor, the circuit board provided with control circuit, battery, motor are connected with control circuit, and the power transmission shaft of motor is provided with master gear,
Corresponding housing is provided with the external gear being meshed with master gear, and motor rotates, and can drive housing into rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019543.8A CN107764354A (en) | 2017-10-26 | 2017-10-26 | A kind of water-proof weight sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711019543.8A CN107764354A (en) | 2017-10-26 | 2017-10-26 | A kind of water-proof weight sensor |
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| Publication Number | Publication Date |
|---|---|
| CN107764354A true CN107764354A (en) | 2018-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711019543.8A Pending CN107764354A (en) | 2017-10-26 | 2017-10-26 | A kind of water-proof weight sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798943A (en) * | 2019-03-01 | 2019-05-24 | 孙良荣 | A kind of water meter or flowmeter structure based on resistance strain type sensor |
| CN113340622A (en) * | 2021-08-05 | 2021-09-03 | 山东柏源技术有限公司 | Rubber tire on-line measuring equipment |
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| CN1527034A (en) * | 2003-09-24 | 2004-09-08 | 郭建国 | Prepaying intelligent water meter terminal in DCPL network |
| DE102007001997A1 (en) * | 2007-01-08 | 2008-07-10 | D+P Dosier- und Prüftechnik GmbH | Flow measuring instrument for application and dosing device, has measuring rod with support exhibiting metal bellows, which comprises partial length of measuring rod, where metal bellows are sealed at measuring rod and are fixed at housing |
| CN101762297A (en) * | 2010-02-22 | 2010-06-30 | 泉州日新流量仪器仪表有限公司 | Sensing device for flow meter |
| CN203216544U (en) * | 2013-01-21 | 2013-09-25 | 重庆联大仪表有限公司 | Externally-attached type corrugated pipe sensor |
| US20160041015A1 (en) * | 2013-11-08 | 2016-02-11 | Lenterra, Inc. | Sensor for monitoring rheologically complex flows |
| CN207866316U (en) * | 2017-10-26 | 2018-09-14 | 浙江圣地物联科技有限公司 | A kind of water-proof weight sensor |
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2017
- 2017-10-26 CN CN201711019543.8A patent/CN107764354A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1527034A (en) * | 2003-09-24 | 2004-09-08 | 郭建国 | Prepaying intelligent water meter terminal in DCPL network |
| DE102007001997A1 (en) * | 2007-01-08 | 2008-07-10 | D+P Dosier- und Prüftechnik GmbH | Flow measuring instrument for application and dosing device, has measuring rod with support exhibiting metal bellows, which comprises partial length of measuring rod, where metal bellows are sealed at measuring rod and are fixed at housing |
| CN101762297A (en) * | 2010-02-22 | 2010-06-30 | 泉州日新流量仪器仪表有限公司 | Sensing device for flow meter |
| CN203216544U (en) * | 2013-01-21 | 2013-09-25 | 重庆联大仪表有限公司 | Externally-attached type corrugated pipe sensor |
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| CN207866316U (en) * | 2017-10-26 | 2018-09-14 | 浙江圣地物联科技有限公司 | A kind of water-proof weight sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798943A (en) * | 2019-03-01 | 2019-05-24 | 孙良荣 | A kind of water meter or flowmeter structure based on resistance strain type sensor |
| CN113340622A (en) * | 2021-08-05 | 2021-09-03 | 山东柏源技术有限公司 | Rubber tire on-line measuring equipment |
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