CN107883983B - Protector for sensor and sensor - Google Patents
Protector for sensor and sensor Download PDFInfo
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- CN107883983B CN107883983B CN201711329534.9A CN201711329534A CN107883983B CN 107883983 B CN107883983 B CN 107883983B CN 201711329534 A CN201711329534 A CN 201711329534A CN 107883983 B CN107883983 B CN 107883983B
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- 230000001012 protector Effects 0.000 title claims abstract description 44
- 230000001681 protective effect Effects 0.000 claims abstract description 97
- 239000011148 porous material Substances 0.000 claims abstract description 80
- 239000000523 sample Substances 0.000 claims abstract description 61
- 239000006260 foam Substances 0.000 claims description 24
- 239000000919 ceramic Substances 0.000 claims description 19
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 13
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 5
- 238000004880 explosion Methods 0.000 description 25
- 239000003245 coal Substances 0.000 description 24
- 239000000463 material Substances 0.000 description 11
- 229910010293 ceramic material Inorganic materials 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000002817 coal dust Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 7
- 229910000639 Spring steel Inorganic materials 0.000 description 5
- 239000002360 explosive Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
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- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
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- 229910052700 potassium Inorganic materials 0.000 description 2
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- 230000002269 spontaneous effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
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- 238000011068 loading method Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000013335 mesoporous material Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The invention discloses a kind of protector for sensor and sensors, are related to technical field of mine safety；The protector for sensor; including porous material protective and fixed device; the upper end of the fixed device is connected to the upper end of sensor probe; and the fixed device is sheathed on outside sensor probe; the porous material protective is sheathed on the outside of sensor probe by the fixed device, and sensor probe is coated by the porous material protective and the fixed device in the longitudinal direction.The sensor includes sensor probe and protector for sensor as described above, and the porous material protective is sheathed on the outside of the sensor probe.The protector for sensor and the sensor can effectively evade the destruction influenced and prevent factors above to sensor of dust, humidity, thermal-flame, high-pressure shocking wave to sensor measurement accuracy.
Description
Technical field
The present invention relates to technical field of mine safety, more particularly to a kind of protector for sensor and sensor.
Background technique
Domestic mine safety accidents happen occasionally in recent years, and especially fire damp dust explosion accident, monitoring are
Realize that mine safety production is prevented accident and to one of the major measure of mine disaster early warning, sensor is Monitoring for Coal Mine
The most important input signal of system, the reasonable setting of sensor are to give full play to coal mine safety monitoring system effect, avoid or subtract
Lack accident, reduces the key of equipment investment and maintenance.
For example, the following place in " safety regulations in coal mine " the 499th article of regulation underground must be provided with methane transducer:
(1) coal working face and its air return lane and Air return corner, high methane and projecting mine coal working face air return lane length are greater than
When 1000m in the middle part of air return lane.(2) coal road, half-coal rock roadway and have in the stone drifting working face and its return of Gas,
When the digging laneway length of high methane and projecting mine is greater than 1000m in the middle part of digging laneway.(3) projecting mine coal working face
Air inlet.(4) when using series ventilation, by the air inlet of string coal working face；By the booster of string driving face
Before.(5) exploiting field air return lane, a wing air return lane, main return airway.(6) using coalingging in the prevailing traffic tunnel of stringing electrical locomotive
At point.(7) coal bunker top, closed belt conveyor ground corridor.(8) in ground gas extraction pump house.(9) underground is faced
When gas drainage pumping plant leeward side panel outside.(10) gas drainage pump inputs, in output pipe." regulation " the 503rd rules and regulations
It is fixed: to be easy the mine of spontaneous combustion, spontaneous progress using the mine and exploitation of anti-explosion diesel power device, carbon monoxide biography should be set
Sensor and temperature sensor.
As it can be seen that sensor is throughout each place of mine and important production link, can be related to a mine be gone on smoothly
Production, is therefore the important guarantee of coal miner life security is effectively protected sensor, guarantees that sensor exists
Normal operation under coal mine complex environment is particularly important.
And underground coal mine is a special working environment, there is inflammable and explosive imflammable gas and a corrosive gas, moist,
Water drenching, mine dust is big, electromagnetic interference is serious etc., and the inflammable and explosive imflammable gas in underground explodes, and explosion will generate thermal-flame
And high-pressure shocking wave, factors above will affect the measurement accuracy of sensor, or even can do great damage to sensor.It uses at present
It is a kind of protective device being set in outside the temperature sensors such as thermal resistance or thermocouple in Temperature Transducer in Common Use protection sleeve pipe, covers
Pipe is usually stainless steel material, has the characteristics that waterproof, electromagnetism interference, corrosion-resistant, existing casing is in underground coal mine
Sensor in environment has certain protective capability, but existing protection sleeve pipe do not account for underground occur it is inflammable and explosive
Imflammable gas is there is a situation where exploding, and when gas explosion disaster occurs for coal mine, sensor is in thermal-flame and high pressure punching
The protective capability hit under the conditions of wave is weaker.At other, there are the Workplace of gas and gas explosion danger, sensor protection dresses
Setting equally has extremely important effect.It would therefore be highly desirable to which dust, explosion, humidity and temperature can effectively be avoided by providing one kind
The protector for sensor damaged to sensor and the sensor with this protector for sensor.
Summary of the invention
The object of the present invention is to provide a kind of protector for sensor and sensors, above-mentioned of the existing technology to solve
Problem can effectively evade the influence to sensor measurement accuracy of dust, humidity, thermal-flame, high-pressure shocking wave and prevent
Only destruction of the factors above to sensor.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of protector for sensor, including porous material protective and fixed device, the fixed dress
The upper end set is connected to the upper end of sensor probe, and the fixed device is sheathed on outside sensor probe, the porous material
Material protective is sheathed on the outside of sensor probe by the fixed device, and sensor probe is described in the longitudinal direction
Porous material protective and the fixed device coat.
Preferably, the porous material protective is porous foam ceramic protective or porous foam metal protective.
Preferably, the fixed device includes protective holder and set casing, and the porous material protective is detachable
Ground is connected in the protective holder, and the upper end of the protective holder is connect with the lower end of the set casing, described
The upper end of set casing and the upper end of sensor probe are detachably connected.
Preferably, the protective holder includes multiple elastic buckles feet along the set casing circumferentially-spaced laying, and
One end of each elastic buckles foot is connect with the set casing, and the other end of each elastic buckles foot forms button foot and is buckled in
On the outer end face of the porous material protective.
Preferably, the set casing includes first for from top to bottom setting gradually and connecting along sensor probe length direction
Shell and second shell, the first shell and the second shell are sheathed on outside sensor probe, and the first shell
Inner wall is matched with the circumferential shape of sensor probe in the circumferential；The second shell is truncated cone-shaped shell, and the second shell
The big end of body is fixedly connected with the upper end of each elastic buckles foot.
Preferably, the first shell is equipped with multiple screw holes, and one is threaded in each screw hole admittedly
Determine screw, each fixing screws pass through the corresponding screw hole and are pressed on the outer wall of sensor probe.
Preferably, a cushion is equipped between each fixing screws and the outer wall of sensor probe.
Preferably, when the protective holder is not clamped with the porous material protective, each elastic buckles foot edge
Length direction self-retaining end to free end, which slopes inwardly, to be arranged, the length direction of each elastic buckles foot and the axis of sensor probe
It is 10~30 degree to angle, and each elastic buckles foot can be clamped and be snapped connection on the porous material protective.
Preferably, the aperture of the porous material protective is 50-500 μm, and porosity is 80%~95%.
The present invention also provides a kind of sensors, including sensor probe and protector for sensor as described above.
The present invention achieves following technical effect compared with the existing technology:
Compared with prior art, protector for sensor and sensor provided by the invention, are protected using porous material
Body protects sensor probe, and porous material protective is the protective being made of porous materials, and porous material is a kind of
By being mutually communicated or closed hole constitutes the material of network structure, such material high temperature resistant will not melt under thermal-flame；
With porous material there is the structure of more micropore can be isolated to a certain extent to protect the sensor in subsurface environment
Coal dust in subsurface environment separates the thermal-flame generated when extinguishing gas explosion, reduces explosion overpressure, can more effectively protect
Sensor of the shield in underground coal mine environment.
The protector for sensor and the sensor are applicable not only to technical field of mine safety, other there are gas and
The Workplace of gas explosion danger equally has extremely important effect.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the application schematic diagram of protector for sensor provided by the invention；
Fig. 2 is the structural schematic diagram of protector for sensor provided by the invention；
Fig. 3 is the main view of the porous material protective in protector for sensor provided by the invention；
Fig. 4 is the top view of the porous material protective in Fig. 3；
Fig. 5 is the structural schematic diagram of the fixation device in protector for sensor provided by the invention；
Fig. 6 is the top view of the fixation device in Fig. 5；
Fig. 7 is the main view of the fixing screws in protector for sensor provided by the invention；
Fig. 8 is the left view of the fixing screws in Fig. 7.
In figure: 1- porous material protective；2- fixes device；21- elastic buckles foot；211- detains foot；22- set casing；221-
First shell；222- second shell；3- fixing screws；4- sensor probe；5- sensor；6- coal dust；7- depositing dust water mist；8- is quick-fried
Fried source.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of protector for sensor and sensors, above-mentioned of the existing technology to solve
Problem can effectively evade the dust of underground coal mine, humidity, thermal-flame, high-pressure shocking wave to sensor measurement accuracy
The destruction for influencing and preventing factors above to sensor.
The present invention provides a kind of protector for sensor, including porous material protective and fixed device, fixed device
Upper end is connected to the upper end of sensor probe, and fixed device is sheathed on outside sensor probe, and porous material protective passes through
Fixed device is sheathed on the outside of sensor probe, and sensor probe is in the longitudinal direction by porous material protective and fixation
Device all coats.
Compared with prior art, protector for sensor provided by the invention, porous material protective are porous material,
Have using existing being mutually communicated or closed hole constitutes protective made of the material of network structure, and the material
High temperature resistant will not melt under thermal-flame；There is the structure of more micropore with porous material, to protect in subsurface environment
Sensor, can be isolated the coal dust in subsurface environment to a certain extent, separate the thermal-flame generated when extinguishing gas explosion,
Explosion overpressure is reduced, the sensor in underground coal mine environment can be more effectively protected.
The invention device is applicable not only to technical field of mine safety, and at other, there are the lifes of gas and gas explosion danger
Producing place equally has extremely important effect.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment one
As shown in Figure 1, being the application schematic diagram of protector for sensor, wherein mine sensors 5 are installed in outside away from air duct
It exports at 10~15m, the height that the environmental impact factor that mine sensors 5 may be subject to has coal dust 6, depositing dust water mist 7, explosion to generate
Warm fire flame 8, explosion overpressure, strong light etc..Protector for sensor is connected on sensor probe 4, can be in the above coal mine
Sensor 5 in environment is protected.
Protector for sensor provided in this embodiment, as shown in Fig. 2, including porous material protective 1 and fixed device
2, the upper end of fixed device 2 is connected to the upper end of sensor probe 4, and fixed device 2 is sheathed on outside sensor probe 4, more
Porous materials protective 1 passes through the outside that fixed device 2 is sheathed on sensor probe 4, and sensor probe 4 in the longitudinal direction by
Porous material protective 1 is all enveloped with fixed device 2.Porous material protective 1 is a kind of protection made of porous material
Body, and porous material protective 1 is sheathed on the outside of sensor probe 4, is used for the quiet middle protection sensor probe 4 of hazardous environment.
Protector for sensor provided in this embodiment has the structure of more micropore with porous material protective 1,
The sensor 5 in subsurface environment is protected, coal dust in subsurface environment can be isolated to a certain extent, separates extinguishing gas explosion
When the thermal-flame that generates, reduce explosion overpressure, can more effectively protect the sensor 5 in underground coal mine environment.Its
In, the effect of fixed device 2 is connection porous material protective 11 and protected sensor probe 4；Porous material protective 1
For hollow cylindrical, the height of porous material protective 1 and wall thickness are passed according to being determined by the length of protection sensor probe 4
The lower end of sensor probe 4 is coated completely by porous material protective 1, the uniform wall thickness of porous material protective 1.
As shown in figs. 34, porous material protective 1 provided in this embodiment uses porous foam ceramic material, internal equal
It is even to be distributed the micropore or hole that are mutually communicated, therefore it is high with porosity, bulk density is small, large specific surface area and unique object
Surface characteristic is managed, in addition the distinctive high temperature resistant of ceramic material, corrosion-resistant, high chemical stability and dimensional stability, porous bubble
Foam ceramics are a kind of excellent quick-fried materials of barrier, and porous material protective 1 made of porous foam ceramic senses underground coal mine
Device 5 has good protective effect.
The working principle of protector for sensor provided by the invention is as follows:
When sensor 5 works, porous material protective 1 has direct barrier action to coal dust 6 and depositing dust water mist 7, prevents
Only the directly affecting to sensor probe 4 of depositing dust water mist 7 of coal dust 6 and liquid, when gas and dust explosion accident occurs for coal mine,
During gas explosion flame propagation, when explosive flame passes through porous material protective 1, explosion gas is protected in porous material
Flowed in 1 hole of body and occur burning and explosive reaction, reaction heat exchanged with 1 hole wall of porous material protective, packet
Include heat transfer, thermal convection, heat radiation.Since 1 aperture of porous material protective is smaller, 1 specific area of porous material protective is very big,
Premixed gas anakmetomeres, which are rebuffed to destroy, can become very big, when flame passes through 1 micro-channel of porous material protective, due to device
Wall effect causes the free radical quantity for participating in burning sharply to reduce, and terminates reaction process；The heat generated with porous foam ceramic hole wall
Exchange effect makes hole wall and adjacent structure of the heat through porous material protective 1 of explosion and scatters and disappears, to keep flame temperature fast
Prompt drop occurs below extinguishing to extinguishing temperature, prevents flame transmission；The flame as caused by hole can also prevent fire by resistance
The propagation of flame.Due to there is complicated cellular structure in porous material protective 1, passed when blast wave enters in these ducts
Sowing time, the hole muscle that it can encounter blocking occur reflection, scattering, lead to the energy loss of blast wave, to be greatly attenuated explosion
The peak stress of wave.
Porous foam ceramic generally can be divided into two classes, i.e. open-celled ceramic material and closed pore ceramic material by opening-type,
This depends on whether each hole has solid wall surface.If the solid for forming foams is only contained in the rib of hole, it is referred to as
For open-celled ceramic material, hole is interconnected；If there is solid wall surface, then foams are known as closed pore ceramic material,
Hole therein is mutually separated by continuous ceramic matrix.But most of foamed ceramics had not only had aperture hole but also existed to be closed on a small quantity
Hole hole.Generally, the resistance explosion insulation performance of closed cell foamed ceramics better than open celled foam ceramics, closed cell foamed ceramics antiknock ability compared with
Good, each hole of closed pore is surrounded by complete hole wall, and obstructing capacity is too strong to may cause measurement inaccurately；Open celled foam ceramics are then
So that the measurement accuracy of sensor is high, protector for sensor preferred aperture foam ceramic material provided in this embodiment.But no
It is limited to this, protector for sensor according to measurement accuracy and measurement request and the intensity of explosion can select which kind of class used
The foam ceramic material of type.Foamed ceramics can be divided into three classes according to pore size, and in general the diameter of hole is less than 2nm
Poromerics；Hole is mesoporous material between 2~50nm；Hole is macro Porous materials in 50nm or more.Generally hole
Rate is smaller, and resistance explosion insulation performance is better, it is contemplated that transmission signal needs fidelity, protector for sensor provided in this embodiment
It is preferred that macro hole foam ceramic material of the hole between 50-500 μm, and the foamed ceramics material that preferable porosity is 80%~95%
Material.The material for preparing foamed ceramics at present mainly has ZrO2、Si3N4、Al2O3, SiC etc., most commonly SiC foam ceramics and
Al2O3Foamed ceramics, since the softening temperature of SiC foam ceramics, compressive resistance are better than Al2O3, therefore biography provided in this embodiment
Sensor protective device selects SiC foam ceramics.
As shown in Fig. 5~6, fixed device 2 includes protective holder and set casing 22, and porous material protective 1 is removable
It unloads and is connected in protective holder, and the upper end of protective holder is also connect with the lower end of set casing 22, set casing 22
Upper end and the upper end of sensor probe 4 are detachably connected.
Protective holder includes multiple elastic buckles feet 21 along 22 circumferentially-spaced laying of set casing, and each elastic buckles foot 21
One end connect with set casing 22, the other end of each elastic buckles foot 21 forms button foot 211 and is simultaneously buckled in porous material protective 1
Outer end face on.
Set casing 22 includes the first shell 221 for from top to bottom setting gradually and connecting along 4 length direction of sensor probe
With second shell 222, first shell 221 and second shell 222 are sheathed on outside sensor probe 4, and 221 inner wall of first shell
It is matched in the circumferential with the circumferential shape of sensor probe 4.
Second shell 222 is truncated cone-shaped shell, and the upper end of the big end of second shell 22 and each elastic buckles foot 21 is fixed and connected
It connects.
In specific scheme, each elastic buckles foot 21 of protector for sensor provided in this embodiment passes through the side of welding
Formula is connected with set casing 22, and there are four elastic buckles feet 21, is uniformly distributed on 22 big mouthfuls of circumference of set casing；Elastic buckles foot 21 with
For the pad of set casing 22 on the outer surface of 22 big mouthfuls of circumference of set casing, the welding trace that solder joint generates does not interfere with porous material
Protective 1 is bonded with set casing 22, and the protection level of coverage of protector for sensor is higher.
Second shell 222 is truncated cone-shaped shell, but not limited to this, it can also be bell shape, as long as sensor protection fills
When setting in a state of use, the outer surface of second shell 222 is from top to bottom inclined outwardly setting, and this structure setting is unfavorable
In the accumulation of dust fall.
First shell 221 is equipped with multiple screw holes, is threaded with a fixing screws 3 in each screw hole, each solid
Screw 3 is determined across corresponding screw hole and is pressed on the outer wall of sensor probe 4.
It is when using protector for sensor provided in this embodiment, porous material protective 1 is fixed with elastic buckles foot 21,
Whole again to cover protector for sensor on sensor probe 4, tightening fixing screws 3 can be by the sensor in the present embodiment
Protective device is for protecting mine sensors.
A cushion is equipped between each fixing screws 3 and the outer wall of sensor probe 4；Cushion is cushion rubber bumper, but
It is without being limited thereto, as long as fixing screws 3 can be prevented to damage caused by sensor 5 itself, and fixing screws 3 can be increased and passed
Friction between sensor probe 4 can be such that protector for sensor fixes stronger.
22 osculum of set casing, four fixing screws 3 provided circumferentially about, fixing screws 3 are distributed in even circumferential, each fixation
Being separated by angle between screw 3 is 45 °；Fixed device 2 is fixed using fixing screws 3, and as shown in Fig. 7~8, structure is simple, disassembly
It is easy to operate, can be applied to the various temperature sensors with probe, it is widely applicable, fixed device 2 can Reusability, cost
It is cheap.
When protective holder is not clamped with porous material protective 1, each elastic buckles foot 21 own elasticity button along its length
The fixing end of foot 21 slopes inwardly to free end to be arranged, and the length direction of each elastic buckles foot 21 and the axial of sensor probe 4 are pressed from both sides
Angle is 10~30 degree, and each elastic buckles foot 21 can be clamped and be snapped connection on porous material protective 1, so that each elasticity
Porous material protective 1 can be easily installed for the stronger of the fixation of porous material protective 1 by detaining foot 21.
As shown in figure 4, set casing 22 selects potassium steel, potassium steel can resist higher shock loading；Elastic buckles foot 21
Spring steel is selected, spring steel requires high temperature resistant, has high tensile strength, elastic limit, high fatigue strength, therefore selects
55Si2Mn alloy spring steel, spring steel have elasticity, and operator is facilitated to open and close fixed porous material protective 1, spring steel
Elasticity more consolidates but also porous material protective 1 is fixed.
In addition, protector for sensor provided by the invention, is not limited solely to protect the sensor of underground coal mine
Shield can equally be played a certain protective role in dust atmosphere and with the sensor in explosion hazard environment.
Embodiment two
The present embodiment is to the further improved embodiment of embodiment one, i.e., protector for sensor provided in this embodiment
Entire infrastructure feature comprising one protector for sensor of embodiment, thes improvement is that:
The porous material protective 1 of protector for sensor provided in this embodiment uses porous foam metal material system
At being porous foam metal protective, be uniformly distributed the micropore or hole being mutually communicated inside porous foam metal, equally have
Porosity is high, bulk density is small, large specific surface area and unique physical surface properties, high temperature resistant, corrosion-resistant, high chemical stabilization
Property and dimensional stability, porous foam metal be a kind of excellent quick-fried material of barrier, porous material made of porous foam metal
Protective 1 has good protective effect to underground coal mine sensor 5.
Embodiment three
The present embodiment includes the full content of embodiment one or embodiment two, i.e., sensor provided in this embodiment includes real
Apply the entire infrastructure feature of example one or the protector for sensor in embodiment two.
Sensor provided in this embodiment, including the sensor protection in sensor probe and embodiment one or embodiment two
Device, porous material protective 1 are sheathed on the outside of sensor probe 4.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (5)
1. a kind of protector for sensor, it is characterised in that: including porous material protective and fixed device, the fixed device
Upper end be connected to the upper end of sensor probe, and the fixed device is sheathed on outside sensor probe, the porous material
Protective is sheathed on the outside of sensor probe by the fixed device, and sensor probe is in the longitudinal direction by described more
Porous materials protective and the fixed device coat；The porous material protective is porous foam ceramic protective or porous bubble
Foam metal coating body；The porous material protective is hollow cylindrical, and sensor probe is in the shape of a rod, is threaded through the porous material
In the cylindric hollow hole for expecting protective, the inner wall phase of sensor probe and the cylindric hollow hole of the porous material protective
Contact；
The fixed device includes protective holder and set casing, and the porous material protective is removably attachable to described
In protective holder, the upper end of the protective holder is connect with the lower end of the set casing, the upper end of the set casing
It is detachably connected with the upper end of sensor probe；
The protective holder includes multiple elastic buckles feet along the set casing circumferentially-spaced laying, and each elastic buckles
One end of foot is connect with the set casing, and the other end of each elastic buckles foot forms button foot and is buckled in the porous material
On the outer end face of protective；
When the protective holder is not clamped with the porous material protective, each elastic buckles foot is along its length from solid
Fixed end to free end, which slopes inwardly, to be arranged, and the length direction of each elastic buckles foot and the axial angle of sensor probe are 10
~ 30 degree；
The button foot that the free end of each elastic buckles foot is formed is right-angle type barb；
The opposite side of the right-angle type barb of the free end of two opposite elastic buckles feet respectively has a chamfering；
The chamfering of the right-angle type barb of the free end of two opposite elastic buckles feet is in outward splayed configuration；
The set casing includes the first shell for from top to bottom setting gradually and connecting along sensor probe length direction and second
Shell, the first shell and the second shell are sheathed on outside sensor probe, and the first shell inner wall is in circumferential direction
It is upper to be matched with the circumferential shape of sensor probe；The second shell be truncated cone-shaped shell, and the big end of the second shell with
The upper end of each elastic buckles foot is fixedly connected；One end of the porous material protective is pressed on the big end of the second shell
End, the other end hooks by the right-angle type barb and holds.
2. protector for sensor according to claim 1, it is characterised in that: the first shell is equipped with multiple screws
Hole, a fixing screws are threaded in each screw hole, and each fixing screws pass through the corresponding screw hole
And it is pressed on the outer wall of sensor probe.
3. protector for sensor according to claim 2, it is characterised in that: each fixing screws and sensor probe
Outer wall between be equipped with a cushion.
4. protector for sensor according to claim 1, it is characterised in that: the aperture of the porous material protective is
50-500 μm, porosity 80%-95%.
5. a kind of sensor, it is characterised in that: including sensor probe and such as sensor of any of claims 1-4
Protective device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711329534.9A CN107883983B (en) | 2017-12-13 | 2017-12-13 | Protector for sensor and sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711329534.9A CN107883983B (en) | 2017-12-13 | 2017-12-13 | Protector for sensor and sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107883983A CN107883983A (en) | 2018-04-06 |
| CN107883983B true CN107883983B (en) | 2019-08-20 |
Family
ID=61774161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711329534.9A Active CN107883983B (en) | 2017-12-13 | 2017-12-13 | Protector for sensor and sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107883983B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575668Y (en) * | 2002-11-01 | 2003-09-24 | 北京农业信息技术研究中心 | Multiside biological chip |
| CN2719349Y (en) * | 2004-08-16 | 2005-08-24 | 董汉涛 | Gas detection probe protective cover |
| CN101713297A (en) * | 2009-09-04 | 2010-05-26 | 中国矿业大学(北京) | Method and equipment for suppressing gas from multiple continuous explosions |
| CN101858226A (en) * | 2010-03-23 | 2010-10-13 | 中国矿业大学 | Explosion proof and suppression method for wave and energy absorption |
| CN201826882U (en) * | 2010-08-02 | 2011-05-11 | 黑龙江科技学院 | Porous pressure-relief explosion-resistant automatic damper for mines |
| CN103196953A (en) * | 2013-03-20 | 2013-07-10 | 无锡隆盛科技股份有限公司 | Packaging structure of flat plate type oxygen sensor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201780119U (en) * | 2010-09-06 | 2011-03-30 | 重庆宗申技术开发研究有限公司 | Switch installation structure of motorcycle meter housing |
| CN102129070B (en) * | 2010-12-04 | 2013-03-20 | 广州市番禺奥迪威电子有限公司 | Vehicle-mounted ultrasonic wave sensor |
| CN103900634A (en) * | 2012-12-26 | 2014-07-02 | 中国人民解放军海军后勤技术装备研究所 | Explosion-proof temperature and humidity instrument |
| CN105203141A (en) * | 2014-06-30 | 2015-12-30 | 青岛海尔洗碗机有限公司 | Sensor protection structure |
-
2017
- 2017-12-13 CN CN201711329534.9A patent/CN107883983B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2575668Y (en) * | 2002-11-01 | 2003-09-24 | 北京农业信息技术研究中心 | Multiside biological chip |
| CN2719349Y (en) * | 2004-08-16 | 2005-08-24 | 董汉涛 | Gas detection probe protective cover |
| CN101713297A (en) * | 2009-09-04 | 2010-05-26 | 中国矿业大学(北京) | Method and equipment for suppressing gas from multiple continuous explosions |
| CN101858226A (en) * | 2010-03-23 | 2010-10-13 | 中国矿业大学 | Explosion proof and suppression method for wave and energy absorption |
| CN201826882U (en) * | 2010-08-02 | 2011-05-11 | 黑龙江科技学院 | Porous pressure-relief explosion-resistant automatic damper for mines |
| CN103196953A (en) * | 2013-03-20 | 2013-07-10 | 无锡隆盛科技股份有限公司 | Packaging structure of flat plate type oxygen sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107883983A (en) | 2018-04-06 |
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