CN208505945U - Coal mine high-low concentration methane sensor - Google Patents
Coal mine high-low concentration methane sensor Download PDFInfo
- Publication number
- CN208505945U CN208505945U CN201821062661.7U CN201821062661U CN208505945U CN 208505945 U CN208505945 U CN 208505945U CN 201821062661 U CN201821062661 U CN 201821062661U CN 208505945 U CN208505945 U CN 208505945U
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- China
- Prior art keywords
- shell
- coal mine
- low concentration
- fixedly installed
- circuit board
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- 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.)
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Abstract
The utility model discloses a kind of coal mine high-low concentration methane sensor, the methane transducer includes: shell and cover board, and the cover board is installed on rear side of shell；Main circuit board, the main circuit board are packaged in shell；Buzzing device assembly, the buzzing device assembly fixation are packaged on shell；Show window assembly, the display window assembly fixation is packaged on shell；Head assembly is sensed, the sensing head assembly is fixed to be packaged in below shell.Methane transducer structure in the utility model is simple and secured, and easy to assembly, good heat dissipation effect has good sealing performance, can adapt to the adverse circumstances such as coal mine, can precisely be detected to methane, and can pass through buzzer and alarm lamp progress early warning.
Description
Technical field
The utility model relates to mine sensors technical fields, sense more particularly to a kind of coal mine high-concentration and low-concentration methane
Device.
Background technique
With the continuous development of society, especially coal development and utilization deepen continuously, be dispersed throughout the Coal Mine in each place
Well is seen everywhere, and the major tasks that coal mine operation safety and both the central and local governments attach great importance to, while being also related to
Each coal mine operator's family's wellbeing.
In coal mine operation, the height of methane concentration be influence safety of coal mines an important factor for one of, therefore, for
The Concentration Testing and warning reminding of methane are always the emphasis in safety of coal mines effect protection.
Methane transducer generally uses carrier catalyst element for detecting element, and generation one is proportional to the content of methane
Small-signal generates an output signal after multistage amplifier circuit amplifies, and is sent into A/D in single chip microcomputer and converts input port,
This analog signals is converted into digital signal, then single-chip microcontroller handles this signal, and realizes display, the function such as alarm
Energy.Methane sensor for coal mine in the prior art usually more to be suspended at the top of underworkings within the scope of 300mm, is in dotted point
Cloth can issue audible and visual alarm when sensor detects that methane concentration is more than 1%, remind Field Force to stop operation and take and arrange
It applies.
However the use environment of the methane transducer of coal mine is more severe, how effectively to be sealed to methane transducer
Dress is a urgent problem.
Therefore, in view of the above technical problems, it is necessary to which a kind of coal mine high-low concentration methane sensor is provided.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of coal mine high-low concentration methane sensors.
To achieve the goals above, the technical solution that an embodiment of the present invention provides is as follows:
A kind of coal mine high-low concentration methane sensor, the methane transducer include:
Shell and cover board, the cover board are installed on rear side of shell；
Main circuit board, the main circuit board are packaged in shell；
Buzzing device assembly, the buzzing device assembly fixation are packaged on shell；
Show window assembly, the display window assembly fixation is packaged on shell；
Head assembly is sensed, the sensing head assembly is fixed to be packaged in below shell；
The sensing head assembly includes the sensor holder being fixedly mounted with shell and the sensing with sensor holder fixed installation
It is formed with accommodating space in device cover, sensor holder and sensor wrap, catalysis element circuit is fixedly installed in the accommodating space
Plate, catalysis element circuit board and main circuit board are electrically connected, and sticker is filled in the accommodating space of catalysis element circuit board
Agent is equipped with filtering screen, the catalysis element circuit board and filtering screen in the accommodating space below catalysis element circuit board
Between be equipped with separately positioned CH_4 catalytic sensor and heat conducting element, on the CH_4 catalytic sensor and heat conducting element vertical direction
Projection be located in filtering screen.
The sensor holder in the sensing head assembly screws spiral shell by sensing head as a further improvement of the utility model,
Mother is fixedly installed on shell.
It is equipped in the shell towards cover board direction as a further improvement of the utility model, and is equipped with several mounting portions.
It is equipped in the shell as a further improvement of the utility model, towards cover board direction and is equipped with several first installations
Portion, the main circuit board are fixedly installed on the first mounting portion.
It is equipped in the shell as a further improvement of the utility model, towards cover board direction and is equipped with several second installations
Portion, the buzzing device assembly include the buzzer pressing plate being fixedly installed on the second mounting portion, are fixedly installed in buzzer pressing plate
On buzzer and the buzzer baffle that is embedded on shell.
It is equipped in the shell as a further improvement of the utility model, towards cover board direction and is installed equipped with several thirds
Portion, the display window assembly include the display window pressing plate being fixedly installed on third mounting portion and are fixedly installed in display window
Display window on pressing plate.
The mounting portion is equipped with several screws and pad for fixed installation as a further improvement of the utility model,
Circle.
The CH_4 catalytic sensor is MJC4/2.8L carrier catalyst element as a further improvement of the utility model,.
The top of the shell is fixedly installed with handle assemblies, the shell as a further improvement of the utility model,
Side be fixedly installed with aviation socket, the lower section of shell is also fixedly installed with alarm lamp component and covers at outside alarm lamp component
Alarm lampshade.
The methane transducer is equipped with several sealing rings for sealing as a further improvement of the utility model,.
The beneficial effects of the utility model are:
Methane transducer structure in the utility model is simple and secured, and easy to assembly, good heat dissipation effect has good
Sealing performance can adapt to the adverse circumstances such as coal mine, can precisely be detected to methane, and can pass through buzzer and alarm lamp
Carry out early warning.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments recorded in the utility model, for those of ordinary skill in the art, is not making the creative labor
Under the premise of, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic view of the front view of methane transducer in one specific embodiment of the utility model；
Fig. 2 is the schematic cross-sectional view of methane transducer in one specific embodiment of the utility model；
Fig. 3 is the backsight structural representation of methane transducer in one specific embodiment of the utility model；
Fig. 4 is the schematic cross-sectional view that head assembly is sensed in one specific embodiment of the utility model.
Specific embodiment
In order to make those skilled in the art more fully understand the technical solution in the utility model, below in conjunction with this reality
With the attached drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that
The described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.Based on the utility model
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
The range of the utility model protection all should belong in example.
In each diagram of the utility model, for the ease of illustration, structure or partial certain sizes can be relative to them
Therefore its structure or partial enlargement are only used for the basic structure of the theme of diagram the utility model.
The term of the representation space relative position used herein such as "left", "right", " left side ", " right side " is for just
A unit as shown in the drawings or feature are described relative to another unit or the relationship of feature in the purpose of explanation.It is empty
Between the term of relative position can be intended to include different direction of the equipment in use or work other than orientation as shown in the figure.
For example, the unit for being described as being located at other units or feature " right side " will be located at other if the equipment in figure overturn
Unit or feature " left side ".Therefore, exemplary term " right side " can include both orientation of left and right side.Equipment can be with
Other modes are directed (be rotated by 90 ° or other directions), and are interpreted accordingly used herein with space correlation description language.
Join shown in Fig. 1-Fig. 3, one of one specific embodiment of the utility model coal mine high-low concentration methane sensor,
The methane transducer includes:
Shell 10 and cover board 20, cover board 20 are installed on 10 rear side of shell；
Main circuit board 30, main circuit board are packaged in shell 10；
Buzzing device assembly 40, the fixation of buzzing device assembly are packaged on shell 10；
Show window assembly 50, display window assembly fixation is packaged on shell 10；
Head assembly 60 is sensed, sensing head assembly is fixed to be packaged in 10 lower section of shell.
It is equipped in shell 10 in the present embodiment towards cover board direction and is equipped with several mounting portions, including several first mounting portions
11, several second mounting portions 12 and several third mounting portions 13, are described in detail below.
It is equipped in shell 10 towards 20 direction of cover board and is equipped with several first mounting portions 11, main circuit board 30 is fixedly installed in the
On one mounting portion 11.
It is equipped in shell 10 towards 20 direction of cover board and is equipped with several second mounting portions 12, buzzing device assembly 40 includes fixed peace
Loaded on the second mounting portion buzzer pressing plate 41, the buzzer 42 that is fixedly installed on buzzer pressing plate and be embedded at shell
Buzzer baffle 43 on body.
It is equipped in shell 10 towards 20 direction of cover board and is equipped with several third mounting portions 13, display window assembly 50 includes fixed peace
Loaded on the display window pressing plate 51 on third mounting portion and the display window 52 being fixedly installed on display window pressing plate.
Further, each mounting portion is equipped with several screws and washer for fixed installation.Such as master in the present embodiment
Circuit board 30 is fixedly mounted on the first mounting portion 11 by multiple M4 screws and washer, and buzzer pressing plate 41 is heavy by multiple M4
Head screw is fixedly mounted on the second mounting portion 12, and display window pressing plate 51 is fixedly mounted on third by multiple M4 screws and washer
On mounting portion 13.
In addition, the top of shell 10 is fixedly installed with handle assemblies 80, the side of shell 10 is fixedly installed with aviation socket
90, the lower section of shell 10 is also fixedly installed with alarm lamp component 70 and covers at the alarm lampshade 701 outside alarm lamp component.
Preferably, handle assemblies 70 are fixedly installed in 10 top of shell, alarm lamp component by flat taper head socket shank rivet
70 are fixedly installed in 10 lower section of shell by nut.
As shown in connection with fig. 4, the sensing head assembly 60 in the present embodiment include with shell be fixedly mounted sensor holder 61 and
Accommodating space is formed in the sensor wrap 62 being fixedly mounted with sensor holder, sensor holder 61 and sensor wrap 62, receiving is empty
Interior to be fixedly installed with catalysis element circuit board 63, catalysis element circuit board 63 and main circuit board 30 are electrically connected, catalysis element
It is filled with adhesive 65 in the accommodating space of 63 top of circuit board, is equipped in the accommodating space of 3 lower section of catalysis element circuit board
Filtering screen 64 is equipped with separately positioned CH_4 catalytic sensor 66 and thermal conductivity between catalysis element circuit board and 63 filtering screens 64
Element 67, the projection in 67 vertical direction of CH_4 catalytic sensor 66 and heat conducting element are located in filtering screen 64.
CH_4 catalytic sensor 66 in the present embodiment then carries out the inspection of methane concentration for being catalyzed to methane gas
It surveys, heat conducting element 67 prevents the excessively high accuracy for influencing methane concentration of temperature for radiating.
Further, the sensor holder 61 sensed in head assembly 60 is fixedly installed in shell by sensing head tightening nut 601
On body 10.
Preferably, the CH_4 catalytic sensor in the present embodiment is MJC4/2.8L carrier catalyst element, heat conducting element G-2
Carrier heat conducting element.
A recessed portion 611 is equipped with above sensor holder in the present embodiment, lower section hook 612 with outward extension passes
It is equipped with the holding section 621 to match with hook on the outside of sensor cover 62, is equipped with the protrusion to match with recessed portion 611 below shell
(not labeled), shell 10 and sensor holder 61 engage by the way that recessed portion 611 and protrusion are fixed, sensor holder 61 and sensor wrap
62, by the fixed engaging of hook 612 and holding section 621, so may be implemented the fixed installation of sensing head assembly 60 and shell 10.
In addition, the sealing performance in order to guarantee methane transducer, between shell 10 and cover board 20, buzzing device assembly 40,
Display window assembly 50, sensing head assembly 60 are additionally provided with several sealing rings in alarm lamp component 70.
As can be seen from the above technical solutions, the utility model has the following beneficial effects:
Methane transducer structure in the utility model is simple and secured, and easy to assembly, good heat dissipation effect has good
Sealing performance can adapt to the adverse circumstances such as coal mine, can precisely be detected to methane, and can pass through buzzer and alarm lamp
Carry out early warning.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (10)
1. a kind of coal mine high-low concentration methane sensor, which is characterized in that the methane transducer includes:
Shell and cover board, the cover board are installed on rear side of shell；
Main circuit board, the main circuit board are packaged in shell；
Buzzing device assembly, the buzzing device assembly fixation are packaged on shell；
Show window assembly, the display window assembly fixation is packaged on shell；
Head assembly is sensed, the sensing head assembly is fixed to be packaged in below shell；
The sensing head assembly includes the sensor wrap with the sensor holder of shell fixed installation and with sensor holder fixed installation,
It is formed with accommodating space in sensor holder and sensor wrap, catalysis element circuit board is fixedly installed in the accommodating space, is urged
Change element circuitry plate and main circuit board is electrically connected, adhesive is filled in the accommodating space of catalysis element circuit board, is urged
Change in the accommodating space below element circuitry plate and filtering screen is installed, is set between the catalysis element circuit board and filtering screen
There are separately positioned CH_4 catalytic sensor and heat conducting element, the projection on the CH_4 catalytic sensor and heat conducting element vertical direction
In filtering screen.
2. coal mine high-low concentration methane sensor according to claim 1, which is characterized in that in the sensing head assembly
Sensor holder be fixedly installed on shell by sensing head tightening nut.
3. coal mine high-low concentration methane sensor according to claim 1, which is characterized in that be equipped with court in the shell
Several mounting portions are equipped with to cover board direction.
4. coal mine high-low concentration methane sensor according to claim 3, which is characterized in that be equipped with court in the shell
Several first mounting portions are equipped with to cover board direction, the main circuit board is fixedly installed on the first mounting portion.
5. coal mine high-low concentration methane sensor according to claim 3, which is characterized in that be equipped with court in the shell
Several second mounting portions are equipped with to cover board direction, the buzzing device assembly includes the buzzer being fixedly installed on the second mounting portion
Pressing plate, the buzzer being fixedly installed on buzzer pressing plate and the buzzer baffle being embedded on shell.
6. coal mine high-low concentration methane sensor according to claim 3, which is characterized in that be equipped with court in the shell
Several third mounting portions are equipped with to cover board direction, the display window assembly includes the display window being fixedly installed on third mounting portion
Pressing plate and the display window being fixedly installed on display window pressing plate.
7. the coal mine high-low concentration methane sensor according to any one of claim 3-6, which is characterized in that the peace
Dress portion is equipped with several screws and washer for fixed installation.
8. coal mine high-low concentration methane sensor according to claim 1, which is characterized in that the CH_4 catalytic sensor
For MJC4/2.8L carrier catalyst element.
9. coal mine high-low concentration methane sensor according to claim 1, which is characterized in that the top of the shell is solid
Dingan County is equipped with handle assemblies, and the side of the shell is fixedly installed with aviation socket, and the lower section of shell is also fixedly installed with alarm
Lamp group part and cover at alarm lampshade outside alarm lamp component.
10. coal mine high-low concentration methane sensor according to claim 1, which is characterized in that the methane transducer
It is equipped with several sealing rings for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062661.7U CN208505945U (en) | 2018-07-05 | 2018-07-05 | Coal mine high-low concentration methane sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821062661.7U CN208505945U (en) | 2018-07-05 | 2018-07-05 | Coal mine high-low concentration methane sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208505945U true CN208505945U (en) | 2019-02-15 |
Family
ID=65283634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821062661.7U Expired - Fee Related CN208505945U (en) | 2018-07-05 | 2018-07-05 | Coal mine high-low concentration methane sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208505945U (en) |
-
2018
- 2018-07-05 CN CN201821062661.7U patent/CN208505945U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190215 |