CN106979887A - Food inspection Muffle furnace burn-proof device - Google Patents
Food inspection Muffle furnace burn-proof device Download PDFInfo
- Publication number
- CN106979887A CN106979887A CN201710325596.6A CN201710325596A CN106979887A CN 106979887 A CN106979887 A CN 106979887A CN 201710325596 A CN201710325596 A CN 201710325596A CN 106979887 A CN106979887 A CN 106979887A
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- Prior art keywords
- muffle furnace
- module
- electromagnet
- temperature
- control module
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a kind of food inspection Muffle furnace burn-proof device, including Muffle furnace casing, chamber door, it is characterised in that：The temperature data also included in control module, the first temperature sensor, electromagnet, Attraction block, power module and switch module, the first temperature sensor collection Muffle furnace casing is sent to control module；The power module connects electromagnet by switch module, and the control module is connected with switch module；The electromagnet is arranged on chamber door, and described Attraction block is arranged on casing.It is an advantage of the invention that the generation of scald accident can be reduced by temperature-prompting；It can not allow to open fire door when Muffle furnace internal temperature is more than the threshold temperature that can open fire door simultaneously, reduce the accident produced in the too high opening fire door of in-furnace temperature.
Description
Technical field
The invention belongs to the Muffle furnace burn-proof device of food inspection device field, more particularly to food inspection.
Background technology
Muffle furnace is as conventional heater in food inspection, and it is used for heating, drying or ashing detection sample.It is existing
Include two parts by the Muffle furnace of technology to constitute, heater box and control cabinet, control cabinet are used to control heater box design temperature
Operation, heats sample, general to use PID controller technology.Heater box includes casing, chamber door, chamber door handle, passes through chamber door handle
Open and close chamber door.But easily ignore the temperature in casing when this manually opened, due to being needed when Muffle furnace, which is operated, to open the door
Chamber door could be opened when less than certain temperature, otherwise can trigger accident.Existing Muffle furnace can not be accomplished to internal temperature
Monitoring, car door opening is forbidden when internally temperature is more than safe temperature, is so possible to occur in height when operating Muffle furnace
Muffle furnace is opened under temperature state, so as to cause to test the generation of detection accident.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention provides food inspection
Survey use the anti-scald dress of Muffle furnace, it is therefore an objective to make Muffle furnace internally temperature more than safety value when, Muffle furnace casing chamber door is locked, it is impossible to
Open, reduce the generation of security incident.
To achieve these goals, the technical scheme taken of the present invention is：A kind of food inspection Muffle furnace burn-proof device,
Including Muffle furnace casing, chamber door and the handle for opening door being arranged on chamber door, it is characterised in that：Also include control module, the first temperature
The temperature spent in sensor, electromagnet, Attraction block, power module and switch module, the temperature sensor collection Muffle furnace casing
Degrees of data is sent to control module；The power module connects electromagnet, the control module and switching molding by switch module
Block is connected；The electromagnet is arranged on chamber door, and described Attraction block is arranged on casing.
The control module is also connected with second temperature sensor, display module respectively, and the second temperature sensor is used for
Gather Muffle furnace box outer surface temperature.
Described electromagnet is arranged in the groove in the first fixed plate, sets heat-insulated in the electromagnet and groove inner wall
Layer；The Attraction block is arranged in the groove in the second fixed plate, and thermal insulation layer is set in Attraction block and groove inner wall；Described first
Fixed plate is connected on chamber door, and second fixed plate is connected on casing, when electromagnet is powered, and electromagnet is inhaled and Attraction block
To lock chamber door.
The control module is connected with bluetooth module, and the bluetooth module communicates with intelligent terminal.
The control module connects voice module, and the voice module connects sound pick-up；Described voice module is to pickup
The voice signal of device collection is analyzed and processed；The control module receives the control sent after voice module analysis voice signal
Signal.
The control module connection Muffle furnace state detection module connection, the Muffle furnace state detection module is used to detect
Whether Muffle furnace is in heated condition.
It is an advantage of the invention that the generation of scald accident can be reduced by temperature-prompting；Simultaneously can be inside Muffle furnace
When temperature is more than the threshold temperature that can open fire door, do not allow to open fire door, reduce and produced in the too high opening fire door of in-furnace temperature
Raw accident.
Brief description of the drawings
This specification includes the following drawings, and shown content is respectively：
Fig. 1 is the structural representation of Muffle furnace burn-proof device of the present invention；
Fig. 2 is the structured flowchart of burn-proof device of the present invention；
Marked in figure：
1st, Muffle furnace casing；2nd, chamber door；3rd, handle for opening door；4th, control module；5th, the first temperature sensor；6th, electromagnet；
7th, Attraction block；8th, power module；9th, switch module；10th, second temperature sensor；11st, display module；12nd, the first fixed plate；
13rd, the second fixed plate；14th, bluetooth module；15th, intelligent terminal；16th, voice module；17th, sound pick-up；18th, Muffle furnace state-detection
Module；.
Embodiment
Below against accompanying drawing, by the description to embodiment, the embodiment to the present invention makees further details of
Explanation, it is therefore an objective to help those skilled in the art to have more complete, accurate and deep reason to design of the invention, technical scheme
Solution, and contribute to it to implement.
The present invention is by setting electromagnet 6 and Attraction block 7 so that the temperature in Muffle furnace is more than the switch fire door of setting
Safe temperature value when forbid open fire door, pass through control module 4 obtain body of heater in temperature, when more than threshold temperature, control
The controlling switch module 9 of molding block 4 is closed, and electromagnet 6, which is powered, produces electromagnetic force, attracts Attraction block 7, so that locked fire door, is reduced
The injury that fire door is produced is opened in the case of in-furnace temperature is not known.
As shown in figure 1, a kind of food inspection Muffle furnace burn-proof device, including Muffle furnace, chamber door 2 and it is arranged on chamber door 2
On handle for opening door 3, handle for opening door 3 is used to perform fighting chamber door 2.First temperature sensor 5 is arranged in body of heater, for detecting Muffle
Temperature data in furnace box body 1, the input of the output end link control module 4 of the first temperature sensor 5, for warm by first
The temperature data that degree sensor 5 is gathered is sent to control module 4, and temperature safety threshold values, power module are provided with control module 4
8 are connected by switch module 9 with electromagnet 6, and control module 4 is when the temperature of the first temperature sensor 5 is more than threshold temperature, hair
Go out control signal to switch module 9 so that switch module 9 is closed, electromagnet 6 is powered；With the Muffle of the opposite position of electromagnet 6
Attraction block 7 is set on furnace box body 1, and when electromagnet 6 is powered, electromagnet 6 is inhaled together with Attraction block 7.Electromagnet 6 is arranged on
On chamber door 2, Attraction block 7 is arranged on Muffle furnace casing 1, and the embodiment being provided with is：Electromagnet 6 is arranged on the first fixed plate
In 12 groove, thermal insulation layer is set on the inwall that electromagnet 6 and groove are contacted, Attraction block 7 is arranged in the second fixed plate 13
Groove in, thermal insulation layer is set on the madial wall contacted in Attraction block 7 and groove, and the first fixed plate 12 is connected on chamber door 2,
Two fixed plates 13 are connected on Muffle furnace casing 1；Electromagnet 6 and Attraction block 7 in the corresponding contact in position at closing time in instrument,
When electromagnet 6 is powered, due to the effect of magnetic force, electromagnet 6 and Attraction block 7 are tightly attached together and can not opened the door.Thermal insulation layer
Setting be to reduce influence of the heat to the magnetic of electromagnet 6.Thermal insulation layer can make of material well known in the prior art.
Control module 4 connects second temperature sensor 10, and second temperature sensor 10 is used to gather the appearance of Muffle furnace casing 1
The temperature in face, control module 4 is connected with display module 11, and display module 11 is used for displays temperature data, such as the temperature inside the box, casing
Surface temperature etc..Control module 4 is connected with bluetooth module 14, and bluetooth module 14 and the intelligent terminal 15 for equally having Bluetooth chip lead to
Letter, intelligent terminal 15 includes PC, mobile phone etc..In order to realize that safety opens fire door, control signal can be sent by mobile phone through indigo plant
Tooth network delivery is to control module 4, so as to close fire door.When the temperature of the first temperature sensor 5 is more than safe enabling temperature,
Intelligent terminal 15 ignores the enabling signal that mobile phone is sent, can if the temperature of the first temperature sensor 5 is less than safe temperature threshold values
To disconnect electromagnet 6 by mobile phone and open electromagnet 6.
Sound pick-up 17 is arranged in the laboratory where Muffle furnace, and for receiving voice signal, what sound pick-up 17 was gathered arrives
Voice signal is sent into voice module 16, and voice module 16 is made up of speech chip.Voice module 16 connects with control module 4
Connect, the energization for controlling fire door electromagnet 6 by voice.After detectable substance is put into casing, pass through voice " electromagnet
6 are powered ", sound pick-up 17, which is collected, to be sent after voice signal to voice module 16, and voice module 16 is contrasted to voice signal,
If the voice signal for having " electromagnet 6 is powered " just sends the control module 4 of control signal by the controlling switch module 9 of control module 4
Closure.Can be when case body temperature be less than and opens threshold temperature, by voice come electromagnetic locking fire door in advance；Or in temperature
When reaching safe threshold, control module 4 automatically opens up switch module 9 so that electromagnet 6 and Attraction block 7 inhale and.
Muffle furnace state detection module 18 is used to detect whether Muffle furnace is in heated condition, and it, which is implemented, to pass through
Current acquisition module, by detecting whether the resistive heater in Muffle furnace has electric current by heating shape to judge whether to be in
State, for more intelligentized control electromagnet 6, does not allow to open fire door, now control module 4 is received in heating process yet
To after the signal of Muffle furnace state detection module 18, controlling switch module 9 is closed, with locked fire door, greatly reduces dangerous thing
Therefore generation.Above-mentioned middle control module 4 can use chip microcontroller, and connecting each module by the I/O serial ports of single-chip microcomputer realizes
Control program in the transmission of signal, single-chip microcomputer uses prior art or disclosed program to be that can be achieved, and is not described here.
The present invention is exemplarily described above in association with accompanying drawing.Obviously, the present invention is implemented not by above-mentioned side
The limitation of formula.As long as employ the improvement of the various unsubstantialities of inventive concept and technical scheme of the present invention progress；Or not
It is improved, the above-mentioned design of the present invention and technical scheme are directly applied into other occasions, in protection scope of the present invention
Within.
Claims (6)
1. food inspection Muffle furnace burn-proof device, including Muffle furnace casing, chamber door, it is characterised in that：Also include control module,
First temperature sensor, electromagnet, Attraction block, power module and switch module, first temperature sensor gather Muffle furnace
Temperature data in casing is sent to control module；The power module connects electromagnet, the control mould by switch module
Block is connected with switch module；The electromagnet is arranged on chamber door, and described Attraction block is arranged on casing.
2. food inspection as claimed in claim 1 Muffle furnace burn-proof device, it is characterised in that：The control module is also connected with
Difference second temperature sensor, display module, the second temperature sensor are used to gather Muffle furnace box outer surface temperature.
3. food inspection as claimed in claim 1 or 2 Muffle furnace burn-proof device, it is characterised in that：Described electromagnet is set
Put in the groove in the first fixed plate, thermal insulation layer is set in the electromagnet and groove inner wall；The Attraction block is arranged on
In groove in two fixed plates, thermal insulation layer is set in Attraction block and groove inner wall；First fixed plate is connected on chamber door, institute
State the second fixed plate to be connected on casing, when electromagnet is powered, electromagnet is inhaled with Attraction block to lock chamber door.
4. food inspection as claimed in claim 1 Muffle furnace burn-proof device, it is characterised in that：The control module and bluetooth
Module is connected, and the bluetooth module communicates with intelligent terminal.
5. food inspection as claimed in claim 1 or 2 Muffle furnace burn-proof device, it is characterised in that：The control module connects
Voice module is connect, the voice module connects sound pick-up；The voice signal that described voice module is gathered to sound pick-up is divided
Analysis is handled；The control module receives the control signal sent after voice module analysis voice signal.
6. food inspection as claimed in claim 1 Muffle furnace burn-proof device, it is characterised in that：The control module connects horse
Not stove state detection module is connected, and the Muffle furnace state detection module is used to detect whether Muffle furnace is in heated condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325596.6A CN106979887A (en) | 2017-05-10 | 2017-05-10 | Food inspection Muffle furnace burn-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710325596.6A CN106979887A (en) | 2017-05-10 | 2017-05-10 | Food inspection Muffle furnace burn-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106979887A true CN106979887A (en) | 2017-07-25 |
Family
ID=59341973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710325596.6A Pending CN106979887A (en) | 2017-05-10 | 2017-05-10 | Food inspection Muffle furnace burn-proof device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106979887A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111896580A (en) * | 2020-07-31 | 2020-11-06 | 上海化工研究院有限公司 | A temperature sensing pressure sensing combined type magnetism safety door holder for hazardous materials test box |
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| DE3026820A1 (en) * | 1980-07-16 | 1982-02-18 | Wilfried St. Lambrecht Hebenstreit | Electric, gas or oil cooking stove guard - comprises plate secured above control knobs and protruding above hotplates |
| JP2009148263A (en) * | 2007-12-20 | 2009-07-09 | Unox Srl | Muffle oven for cooking foodstuff |
| CN101937215A (en) * | 2010-07-22 | 2011-01-05 | 鹤壁市金宏实验设备有限公司 | Embedded intelligent data processing terminal of coal analysis and intelligent integral muffle furnace thereof |
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| CN202788299U (en) * | 2012-08-27 | 2013-03-13 | 帝兴树脂(昆山)有限公司 | Oven safety door system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111896580A (en) * | 2020-07-31 | 2020-11-06 | 上海化工研究院有限公司 | A temperature sensing pressure sensing combined type magnetism safety door holder for hazardous materials test box |
| CN111896580B (en) * | 2020-07-31 | 2023-11-28 | 上海化工研究院有限公司 | Temperature-sensing and pressure-sensing composite magnetic safety door latch for dangerous substance testing box |
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