CN205958039U - Metal mold knob formula flow sensor - Google Patents
Metal mold knob formula flow sensor Download PDFInfo
- Publication number
- CN205958039U CN205958039U CN201620932781.2U CN201620932781U CN205958039U CN 205958039 U CN205958039 U CN 205958039U CN 201620932781 U CN201620932781 U CN 201620932781U CN 205958039 U CN205958039 U CN 205958039U
- Authority
- CN
- China
- Prior art keywords
- flow
- unit
- probe
- metal mold
- lower cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a metal mold knob formula flow sensor, including casing, probe and circuit part, the casing includes upper cover and lower cover, the lower cover is equipped with two draw -in grooves, and the draw -in groove on upper portion is equipped with the sealing washer, and the draw -in groove of lower part is equipped with to seal and fills up, the upper cover with it is sealed that the lower cover passes through interference fit, the probe with the lower cover passes through interference fit and connects, the circuit part sets up in the casing, the circuit part is including the singlechip that is used for each unit of control circuit for gather traffic signal the flow measurement unit, be used for exporting the flow measurement result the flow display unit, be used for enlargeing traffic signal signal amplifying unit, be used for 10 36V's power supply converts the boost circuit unit that supplies internal circuit operating voltage into, the flow measurement unit sets up in the probe. Easy operation, the reliability is high, and the interference killing feature is strong.
Description
Technical field
This utility model is related to a kind of flow transducer.
Background technology
Flow transducer is used in flux monitoring system, when flow velocity reaches the flow rate threshold of setting, produces detection signal,
For starting interlock protection system.Traditional flow sensor arrangement is complicated heavy, installation difficulty, the easy temperature influence of precision and
It is deteriorated, poor anti jamming capability, and gas, liquid can not be general, do not possess and carry out Automatic Control, report to detection signal
Function, the complex operations such as alert, startup interlock protection system, and mostly based on embedding, complex process, high cost, maintenance are not
Convenient, corrosion resistance is poor, and volume is larger, and moulding is not attractive in appearance.
Authorization Notice No. CN202255502U discloses a kind of flow transducer, including housing, circuit module and probe,
Described probe is connected with described housing lower end, and described circuit module is arranged in described housing, described circuit module include for
The single-chip microcomputer of control circuit module each unit, for gathering the flow detection unit of flow signal, for Output estimation knot
The flow quantity display unit of fruit, for flow signal amplifying signal amplification unit, the power supply of 10-36V is converted to for interior
The booster circuit unit of portion's circuit voltage, described flow detection unit is arranged in described probe.But this structure is anti-corrosion
Durable performance has much room for improvement.
Utility model content
The shortcoming of prior art in view of the above, this utility model purpose is to provide a kind of metal mold knob flow
Sensor, simple to operate, reliability is high, and strong antijamming capability can carry out flow monitor in real time to gas, liquid and other medium, prevents
Rotten durable.
For achieving the above object and other related purposes, this utility model provides a kind of metal mold knob flow sensing
Device, including housing, probe and circuit part, described housing include lid and lower cover, described under be covered with two draw-in grooves, top
Draw-in groove is provided with sealing ring, and the draw-in groove of bottom is provided with sealing gasket, and described upper lid passes through interference fit seal, described spy with described lower cover
Head is connected by interference fit with described lower cover, and described circuit part is arranged in described housing, and described circuit part includes using
In the single-chip microcomputer of control circuit each unit, for gathering the flow detection unit of flow signal, being used for Output estimation result
Flow quantity display unit, the signal amplification unit for flow signal amplifying, for the power supply of 10-36V is converted to confession
The booster circuit unit of internal circuit running voltage, described flow detection unit is arranged in described probe.
Preferably, it is provided with circular hole in the middle of described lower cover, circular hole has extended downwardly a boss, and described probe is through in lower cover
Between circular hole, fixed by interference fit；Described probe top is provided with step, and step is provided with sealing ring.Probe is joined with lower cover
The effect of sealing is played during conjunction.
Preferably, described probe top is provided with a circular hole, is provided with for strengthening the anti-interference energy of product in described circular hole
The earth lead of power, described circular hole aperture≤1.5mm.
Preferably, it is additionally provided with plastic parts in described upper lid, described plastic parts is made up of the assembly of two semiellipse shapes, half
The inwall of elliptoid assembly is provided with bayonet socket.This bayonet socket is used for fixing described circuit board, plays vibrationproof, shielding, jamproof
Effect.
Preferably, described flow detection unit is provided with two critesistor and a thermal source, and described flow detection unit sets
Put in probe, in probe, be additionally provided with the steam chest for described flow detection unit temperature-compensating.
Preferably, described housing is provided with the knob for control single chip computer and the display screen showing flow detection result,
Can arrange and adjust flow switch point by knob, flow detection result can be shown by display screen.
Preferably, described circuit part is provided with the anti-interference unit of signal for circuit part is carried out with anti-interference process.
Preferably, described circuit part is additionally provided with for providing overcurrent protection when single-chip microcomputer output signal exceedes given amount
Current sense unit.
As described above, a kind of metal mold knob flow transducer that this utility model provides, have the advantages that：
Compact conformation of the present utility model, simple to operate, reliability is high, and strong antijamming capability can flow to gas, liquid and other medium
Amount monitor in real time, using interference fit not sealant pouring and sealing structure, degree of protection is up to IP68, IP69K sanitary grade；Housing adopts
All-metal material, anti-corrosion durable；Structure is simple, and easy to maintenance, small volume, low cost are handsome in appearance.
Brief description
Fig. 1 is a kind of structural representation of this utility model metal mold knob flow transducer.
Fig. 2 is a kind of sectional view of this utility model metal mold knob flow transducer.
Fig. 3 is a kind of theory diagram of this utility model metal mold knob flow transducer.
Fig. 4 is a kind of scheme of installation of this utility model metal mold knob flow transducer.
Wherein：1. housing；Cover on 11.；111. pressing pieces；112. display screen；113. knob；114. connector；115. moulding
Glue part；12. lower covers；121. sealing ring；122. sealing gasket；2. circuit part；3. pop one's head in；31. sealing rings.
Specific embodiment
Hereinafter embodiment of the present utility model is illustrated by particular specific embodiment, those skilled in the art can be by this
Content disclosed by description understands other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 4.It should be clear that structure depicted in this specification institute accompanying drawings, ratio, size etc., all only in order to
Content disclosed in cooperation description, so that those skilled in the art understands and reads, is not limited to this utility model
Enforceable qualificationss, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or size
Adjustment, under not affecting this utility model effect that can be generated by and the purpose that can reach, all should still fall in this utility model
In the range of disclosed technology contents obtain and can cover.Meanwhile, in this specification cited as " on ", D score, " left ",
The term of " right ", " middle " and " one " etc., is merely convenient to understanding of narration, and it is enforceable to be not used to restriction this utility model
Scope, being altered or modified of its relativeness, under no essence change technology contents, enforceable when being also considered as this utility model
Category.
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of metal mold knob flow transducer, including housing 1, probe 3 and circuit portion
Divide 2, described housing 1 includes lid 11 and lower cover 12, fixes by interference fit between upper lid 11 and lower cover 12, described probe 3
Be connected by interference fit with described lower cover 12, described circuit part 2 is arranged in housing 1, described circuit part 2 include for
The single-chip microcomputer of control circuit module each unit, for gathering the flow detection unit of flow signal, for Output estimation knot
The flow quantity display unit of fruit, for flow signal amplifying signal amplification unit, the power supply of 10-36V is converted to for interior
The booster circuit unit of portion's circuit voltage, described flow detection unit is arranged in described probe 3.Booster circuit unit can
Running voltage is converted to the power supply meeting 10-36V, is user using the alternative condition providing a relative broad range.
Flow detection unit is provided with two critesistor and a thermal source, and thermal source causes a local temperature liter in media as well
Height, the temperature of increase is detected by one of critesistor, as long as medium flows through thermal source, just absorbs the heat of thermal source, another
The temperature change that critesistor detection draws therefrom, for the display of flow, for obtaining the relatively wide range of linearity, makes change
Medium temperature obtain an accurate measurement result.
It is additionally provided with the steam chest for flow detection unit temperature-compensating in housing 1, by arranging steam chest, make flow detection list
Unit obtains temperature-compensating it is ensured that accuracy of detection, obtains an accurate measurement result.
In order to improve the sealing property of whole sensor, flow detection unit and for flow detection unit temperature-compensating
Steam chest integral packaging in probe, such as using resin, plastics or other plastics seal material integral packaging, and in the upper end popped one's head in
The lead-out wire (signal transmssion line) of flow detection unit is drawn, correspondence is electrically connected in the circuit board of enclosure interior.
Circuit part is additionally provided with the anti-interference unit of signal that circuit module is carried out with anti-interference process, resists dry including circuit board
Disturb and digital Anti-Jamming Technique is it is ensured that the reliability of system；Circuit part is additionally provided with for both exceeding when single-chip microcomputer output signal
The current sense unit of overcurrent protection is provided, single-chip microcomputer produces a reference voltage as the calibration signal of flow, uses when quantitative
In improving accuracy of detection, single-chip microcomputer output signal feeds back to single-chip microcomputer through overcurrent detecting unit, when electric current exceedes given amount
Overcurrent protection is provided.
As shown in figure 1, housing 1 is provided with for the knob 113 of control single chip computer with for showing flow detection result
Display screen 112, user only needs the knob 113 in adjustment housings 1, you can adjusts set-point to desired flow speed control point, passes through
What display screen 112 can make user's straight tube knows testing result.
This utility model flow transducer can carry out monitor in real time under conditions of not affecting flow on demand, can be severe
Industrial condition under work reliably and with long-term, during installation regardless of install position.This utility model can flow to gas, liquid etc.
Amount is monitored, and is simply plugged in pipeline or container during use, adjusts set-point to desired flow speed control point, permissible
By connecting different pipe diameters, to monitor different size of flow.
As depicted in figs. 1 and 2, it is provided with the circuit part 2 controlling flow transducer work inside housing 1, upper lid 11 is provided with
Display screen 112, knob 113, connector 114, display screen 112 is internal fixing by pressing piece 111 from upper lid, works as showing
Front flow；Knob 113 loads from the surface of housing 1, for adjusting and arranging flow switch point；Connector 114 is provided with
Sealing ring, connector stretches into housing by the circular hole of upper lid side, and connector 114 is used for connecting external cable, plastic parts 115
Become semiellipse shape, the inwall of semiellipse shape is provided with bayonet socket, for permanent circuit part 2, play antidetonation, insulation, anti-interference
Effect.
Housing 1 includes lid 11 and lower cover 12, and lower cover 12 is provided with 2 draw-in grooves, and top draw-in groove is provided with sealing ring 121, bottom
Draw-in groove is provided with sealing gasket 122, and upper lid 11 and lower cover 12 are all made using metal material, pass through between upper lid 11 and lower cover 12
Interference fit, to fix, is sealed by the sealing ring 121 on lower cover 12 and sealing gasket 122；It is provided with individual in the middle of lower cover 12
Circular hole, circular hole has extended downwardly a boss, and probe 3 is passed through the circular hole in the middle of lower cover 12, fixed by interference fit；Probe 3
Top is provided with step, and step is provided with sealing ring 31, plays the effect of sealing when popping one's head in 3 and lower cover 12 cooperation.
3 tops of popping one's head in are additionally provided with a circular hole, are provided with the earth lead for strengthening product capacity of resisting disturbance, institute in circular hole
State circular hole aperture≤1.5mm, probe is made using anticorrosive, and antiseptic power is stronger.
As shown in figure 4, scheme of installation of the present utility model, this utility model detection pipeline flow operation principle is：Will
Probe is arranged in pipeline, gathers flow signal by the flow detection unit in probe, will be gathered by signal amplification unit
To flow signal amplify after input to single-chip microcomputer, after single-chip microcomputer is processed, single-chip microcomputer can produce according to set flow
Reference voltage, thus ensure that sampled voltage is optimum precision value, for the output signal of single-chip microcomputer, also by current sense unit
It is monitored, when electric current exceedes given amount, overcurrent protection can be provided.
Temperature change, according to thermal diffusion principle, is turned by this utility model flow detection part through processing of circuit and intelligent computing
It is changed into changes in flow rate display output.Thermal diffusion principle is one of heated when two sensing elements are placed in fluid,
Another is used for sensing process temperature, and the temperature difference between two sensing elements is relevant with the property of process flow velocity and process medium,
The temperature difference between two sensing elements maximum under no flow status, but the increase with flow, heated sensing element is cold
But, the temperature difference reduces, and rate of flow of fluid directly affects the degree of thermal diffusion.
In sum, this utility model provides a kind of metal mold knob flow transducer, and structure of the present utility model is tight
Gather, simple to operate, reliability is high, and strong antijamming capability can carry out flow monitor in real time to gas, liquid and other medium, adopt
It is full of and coordinates not sealant pouring and sealing structure, degree of protection is up to IP68, IP69K sanitary grade；Housing adopts all-metal material, anti-corrosion resistance to
With；Structure is simple, and easy to maintenance, small volume, low cost are handsome in appearance.So, this utility model effectively overcomes prior art
In various shortcoming and have high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for limiting this practicality
Type.Any person skilled in the art all can be carried out to above-described embodiment without prejudice under spirit and the scope of the present utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in this utility model
All equivalent modifications being completed under god and technological thought or change, must be covered by claim of the present utility model.
Claims (8)
1. a kind of metal mold knob flow transducer is it is characterised in that include housing, probe and circuit part, described housing
Including on lid and lower cover, described under be covered with two draw-in grooves, the draw-in groove on top is provided with sealing ring, and the draw-in groove of bottom is provided with sealing
Pad, described upper lid passes through interference fit seal with described lower cover, and described probe is connected by interference fit with described lower cover, described
Circuit part is arranged in described housing, and described circuit part includes the single-chip microcomputer for control circuit each unit, for gathering
The flow detection unit of flow signal, flow quantity display unit for Output estimation result, for flow signal amplifying
Signal amplification unit, for the power supply of 10-36V is converted to booster circuit unit for internal circuit running voltage, institute
State flow detection unit to be arranged in described probe.
2. a kind of metal mold knob flow transducer according to claim 1 is it is characterised in that set in the middle of described lower cover
There is circular hole, circular hole has extended downwardly a boss, the circular hole through in the middle of lower cover for the described probe, fixed by interference fit；Institute
State probe top and be provided with step, step is provided with sealing ring.
3. a kind of metal mold knob flow transducer according to claim 1 is it is characterised in that described probe top sets
There is a circular hole, the earth lead for strengthening product capacity of resisting disturbance is installed in described circular hole, described circular hole aperture≤
1.5mm.
4. a kind of metal mold knob flow transducer according to claim 3 is it is characterised in that also set in described upper lid
There is plastic parts, described plastic parts is made up of the assembly of two semiellipse shapes, is provided with bayonet socket on the inwall of the assembly of semiellipse shape.
5. a kind of metal mold knob flow transducer according to claim 1 is it is characterised in that described flow detection list
Unit is provided with two critesistor and a thermal source, and described flow detection unit is arranged in described probe, is additionally provided with use in probe
Steam chest in described flow detection unit temperature-compensating.
6. a kind of metal mold knob flow transducer according to claim 5 is it is characterised in that described housing is provided with
Knob for control single chip computer and the display screen of display flow detection result.
7. a kind of metal mold knob flow transducer according to any one claim of claim 1 to 6, its feature exists
In described circuit part is provided with the anti-interference unit of signal for circuit part is carried out with anti-interference process.
8. a kind of metal mold knob flow transducer according to claim 7 it is characterised in that described circuit part also
It is provided with the current sense unit for providing overcurrent protection when single-chip microcomputer output signal exceedes given amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932781.2U CN205958039U (en) | 2016-08-25 | 2016-08-25 | Metal mold knob formula flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620932781.2U CN205958039U (en) | 2016-08-25 | 2016-08-25 | Metal mold knob formula flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958039U true CN205958039U (en) | 2017-02-15 |
Family
ID=57977402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620932781.2U Active CN205958039U (en) | 2016-08-25 | 2016-08-25 | Metal mold knob formula flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205958039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081911A (en) * | 2019-04-23 | 2019-08-02 | 中铁十九局集团矿业投资有限公司 | A kind of protective device for mining machinery sensor |
-
2016
- 2016-08-25 CN CN201620932781.2U patent/CN205958039U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081911A (en) * | 2019-04-23 | 2019-08-02 | 中铁十九局集团矿业投资有限公司 | A kind of protective device for mining machinery sensor |
| CN110081911B (en) * | 2019-04-23 | 2021-07-02 | 中铁十九局集团矿业投资有限公司 | Protection device for mining machinery sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204854854U (en) | Intelligent flow sensor of corrosion -resistant all -metal | |
| CN204881898U (en) | Full metal temperature sensor of corrosion -resistant type | |
| CN205958039U (en) | Metal mold knob formula flow sensor | |
| WO2016197631A1 (en) | Acid-base resistant all-metal flow temperature sensor | |
| CN203587140U (en) | Temperature-humidity transmitter in high humidity environment | |
| CN205642513U (en) | Water gauge freeze -proof device | |
| CN110068374A (en) | A kind of integral type ultrasonic water meter | |
| CN209416422U (en) | A kind of water meter or flowmeter structure based on resistance strain type sensor | |
| CN207424711U (en) | A kind of temperature control system for 3D bend glass hot-bending machines | |
| CN205228682U (en) | Ultrasonic wave calorimeter based on pressure gauge | |
| CN208998894U (en) | A kind of Intelligent supersonic level sensor | |
| CN202255502U (en) | Flow sensor | |
| CN208504469U (en) | Device and gas-cooker for the detection of gas-cooker thermic load value | |
| CN204043717U (en) | Explosion-proof intelligent digital displaying meter | |
| CN209148280U (en) | A kind of electro-hydraulic steerable system Characteristics of Solenoid Valve experimental provision | |
| CN207817494U (en) | A kind of kitchen safety monitoring system | |
| CN208313076U (en) | A kind of condenser tube structure with temp sensing function | |
| CN204705385U (en) | A kind of dry-reed flow sensor | |
| CN206560266U (en) | A kind of automatic electric cooker that accurately adds water | |
| CN204788509U (en) | Flow sensor | |
| CN207232058U (en) | A kind of soil pH value sensor with metal electrode | |
| CN201196663Y (en) | Double-metal thermocouple | |
| CN108643987A (en) | Engine motor oil cutout detection switch and temperature detection integrated apparatus | |
| CN109798943A (en) | A kind of water meter or flowmeter structure based on resistance strain type sensor | |
| CN210051459U (en) | Wireless remote household heat meter shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |