CN211927843U - Methane sensor for coal mine - Google Patents
Methane sensor for coal mine Download PDFInfo
- Publication number
- CN211927843U CN211927843U CN202020220164.6U CN202020220164U CN211927843U CN 211927843 U CN211927843 U CN 211927843U CN 202020220164 U CN202020220164 U CN 202020220164U CN 211927843 U CN211927843 U CN 211927843U
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- Prior art keywords
- casing
- cover
- sensing probe
- lamp shade
- coal mine
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Abstract
The utility model relates to a detecting instrument, concretely relates to methane sensor for coal mine, including casing (1), main circuit board (2) of encapsulation in casing (1), installation display window subassembly (3) on casing (1), casing (1) below installation sensing probe subassembly (4), lamp shade (5) are still installed to casing (1) top, and lamp plate (6) that lamp shade (5) installation and main circuit board (2) are connected, casing (1) overcoat is equipped with translucent cover (7), translucent cover (7) cover lamp shade (5), casing (1), sensing probe subassembly (4) in to locate to set up the opening in sensing probe subassembly (4), the inner wall of translucent cover (7) sets up flange (8) for there is the clearance between translucent cover (7) and lamp shade (5) and casing (1). The utility model discloses increase the luminous body volume of bright warning for the warning is more easily perceived, and plays further dirt-proof effect, components and parts in the protecting sheathing.
Description
Technical Field
The utility model relates to a detecting instrument, concretely relates to methane sensor for coal mine.
Background
The low-concentration methane sensor for the coal mine is developed for meeting the requirement of monitoring the underground methane concentration of the coal mine in China. It can continuously and automatically convert the concentration of methane in the well into standard electric signal and transmit it to the adapting device, and has the functions of on-site displaying methane concentration value, ultralimit acousto-optic alarm, etc. After the sensor is subjected to online inspection by the national explosion-proof inspection institution, the sensor can be matched with various domestic monitoring systems, outage instruments and wind power and gas locking devices, and is suitable for being fixedly used in places such as coal mine excavation working faces, electromechanical chambers, air return tunnels and the like. In the prior art, a sensor consists of a shell, a main circuit board, a display window assembly and a sensing probe assembly, and alarms by connecting an alarm lamp. Because the service environment of this sensor is in the colliery construction site, the dust is great, causes the damage to getting into each subassembly in the casing on the one hand easily, and on the other hand, the size of alarm lamp is less, and when the dust is great, be difficult for discovering the warning.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a methane sensor for coal mine to solve current methane sensor great at the dust, cause the damage to each subassembly in the casing to getting into the casing easily on the one hand, on the other hand, the size of alarm lamp is less, when the dust is great, is difficult for discovering the problem of warning.
In order to achieve the above object, the utility model provides a following technical scheme:
methane sensor for coal mine, which comprises a housin, encapsulation main circuit board in the casing installs the display window subassembly on the casing, and casing below installation sensing probe subassembly, the lamp shade is still installed to the casing top, the lamp plate of lamp shade installation and main circuit board connection, the casing overcoat is equipped with the translucent cover, the translucent cover covers lamp shade, casing, sensing probe subassembly in to set up the opening in sensing probe subassembly department, the inner wall of translucent cover sets up the flange, makes to have the clearance between translucent cover and lamp shade and the casing.
The translucent cover plays the effect of further protection, simultaneously, when the lamp plate lights, light reflects between lamp shade and translucent cover for all light in the translucent cover, very big expansion luminous volume, make to change discovery bright warning, improve the security.
Preferably, the translucent cover constitute by main cover and fastening portion, the main cover is pieced together through the articulated front and back half cover in top, the bottom of front and back half cover is pieced together and is the tube-shape to the cover is outside sensing probe subassembly, fastening portion is the annular, and fastening portion is outside the bottom of front and back half cover is located through the screw thread cover for the translucent cover is convenient for install.
Preferably, the rubber strips are arranged at the splicing positions of the front half cover and the rear half cover. The sealing performance of the splicing part of the front half cover and the rear half cover of the transparent cover is improved, and the entering of dust is reduced.
Preferably, the bottom ends of the front half cover and the rear half cover are longer than the sensing probe assembly, so that the work of the sensing probe assembly is not influenced, the pollution of dust to the sensing probe assembly can be reduced to a certain degree, and the influence on the detection precision is avoided.
Preferably, a lifting handle is further arranged above the transparent cover, so that the transparent cover is convenient to hang, and is suitable for various application scenes.
Preferably, a buzzer is further mounted in the shell and connected with the main circuit board, and the shell can give out a buzzing alarm while giving out a light alarm.
Compared with the prior art, the utility model discloses can produce following beneficial effect at least:
the utility model increases the volume of the luminous body for light alarm, so that the alarm is more easily perceived, and plays a role of further dust prevention, and components in the shell are protected;
the utility model is convenient to install, suitable for production and convenient for maintenance;
the utility model has the advantages that the sealing performance of the splicing part of the front half cover and the rear half cover of the transparent cover reduces the entering of dust;
the utility model can buzz and alarm when the light alarm is given.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic side view of the cross-sectional structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The structure of the methane sensor for the coal mine is shown in fig. 1 and fig. 2, and several embodiments are listed below by combining the figure.
Example 1:
methane sensor for coal mine, including casing 1, main circuit board 2 of encapsulation in the casing 1, installation display window subassembly 3 on the casing 1, the sensing probe subassembly 4 of casing 1 below installation, lamp shade 5 is still installed to casing 1 top, and lamp shade 5 installs the lamp plate 6 of being connected with main circuit board 2, 1 overcoat of casing is equipped with translucent cover 7, translucent cover 7 covers lamp shade 5, casing 1, sensing probe subassembly 4 in to locate to set up the opening at sensing probe subassembly 4, the inner wall of translucent cover 7 sets up flange 8 for there is the clearance between translucent cover 7 and lamp shade 5 and the casing 1.
Transparent cover 7 plays the effect of further protection, simultaneously, when lamp plate 6 lights, light reflects between lamp shade 5 and transparent cover 7 for all light in transparent cover 7, very big expansion luminous volume, make to change the discovery bright warning, improve the security.
Example 2:
methane sensor for coal mine, including casing 1, main circuit board 2 of encapsulation in the casing 1, installation display window subassembly 3 on the casing 1, the sensing probe subassembly 4 of casing 1 below installation, lamp shade 5 is still installed to casing 1 top, and lamp shade 5 installs the lamp plate 6 of being connected with main circuit board 2, 1 overcoat of casing is equipped with translucent cover 7, translucent cover 7 covers lamp shade 5, casing 1, sensing probe subassembly 4 in to locate to set up the opening at sensing probe subassembly 4. Translucent cover 7 constitute by main cover 71 and fastening portion 72, main cover 71 is pieced together through top articulated front and back half cover, the bottom of front and back half cover is pieced together and is the tube-shape to overlap outside sensing probe subassembly 4, fastening portion 72 is the annular, and fastening portion 72 is outside the bottom of front and back half cover is located through the thread bush for translucent cover 7 is convenient for install and dismantle, the inner wall of translucent cover 7 sets up flange 8, makes there is the clearance between translucent cover 7 and lamp shade 5 and the casing 1.
Transparent cover 7 plays the effect of further protection, simultaneously, when lamp plate 6 lights, light reflects between lamp shade 5 and transparent cover 7 for all light in transparent cover 7, very big expansion luminous volume, make to change the discovery bright warning, improve the security.
Example 3:
methane sensor for coal mine, including casing 1, main circuit board 2 of encapsulation in the casing 1, installation display window subassembly 3 on the casing 1, the sensing probe subassembly 4 of casing 1 below installation, lamp shade 5 is still installed to casing 1 top, and lamp shade 5 installs the lamp plate 6 of being connected with main circuit board 2, 1 overcoat of casing is equipped with translucent cover 7, translucent cover 7 covers lamp shade 5, casing 1, sensing probe subassembly 4 in to locate to set up the opening at sensing probe subassembly 4. Translucent cover 7 constitute by main cover 71 and fastening portion 72, main cover 71 is pieced together through top articulated front and back half cover, the department of piecing together of front and back half cover set up the rubber strip, the bottom of front and back half cover is pieced together to be the tube-shape to overlap outside sensing probe subassembly 4, fastening portion 72 is the annular, and fastening portion 72 is outside the bottom of front and back half cover is located through the thread bush for translucent cover 7 is convenient for install and dismantle, the inner wall of translucent cover 7 sets up flange 8, makes to have the clearance between translucent cover 7 and lamp shade 5 and the casing 1.
Transparent cover 7 plays the effect of further protection, simultaneously, when lamp plate 6 lights, light reflects between lamp shade 5 and transparent cover 7 for all light in transparent cover 7, very big expansion luminous volume, make to change the discovery bright warning, improve the security.
Example 4:
methane sensor for coal mine, including casing 1, main circuit board 2 of encapsulation in the casing 1, installation display window subassembly 3 on the casing 1, the sensing probe subassembly 4 of casing 1 below installation, lamp shade 5 is still installed to casing 1 top, and lamp shade 5 installs the lamp plate 6 of being connected with main circuit board 2, 1 overcoat of casing is equipped with translucent cover 7, translucent cover 7 covers lamp shade 5, casing 1, sensing probe subassembly 4 in to locate to set up the opening at sensing probe subassembly 4. The translucent cover 7 constitute by main cover 71 and fastening portion 72, main cover 71 is pieced together through top articulated front and back half cover, the department of piecing together of front and back half cover set up the rubber strip, the bottom of front and back half cover is pieced together and is the tube-shape to overlap outside sensing probe subassembly 4, the bottom of front and back half cover is good at sensing probe subassembly 4. Fastening portion 72 is the annular, and fastening portion 72 is located outside the bottom of back half cover in the front through the screw thread cover for translucent cover 7 is convenient for install and is dismantled. The inner wall of the transparent cover 7 is provided with a convex plate 8, so that gaps exist among the transparent cover 7, the lampshade 5 and the shell 1. A handle 11 is arranged above the transparent cover 7.
Transparent cover 7 plays the effect of further protection, simultaneously, when lamp plate 6 lights, light reflects between lamp shade 5 and transparent cover 7 for all light in transparent cover 7, very big expansion luminous volume, make to change the discovery bright warning, improve the security.
The most preferred embodiment is as follows:
methane sensor for coal mine, including casing 1, main circuit board 2 of encapsulation in the casing 1, installation display window subassembly 3 on the casing 1, sensing probe subassembly 4 is installed to 1 below of casing, still installs bee calling organ 9 in the casing 1, bee calling organ 9 is connected with main circuit board 2, lamp shade 5 is still installed to 1 top of casing, and lamp shade 5 installs the lamp plate 6 of being connected with main circuit board 2, 1 overcoat of casing is equipped with translucent cover 7, translucent cover 7 covers lamp shade 5, casing 1, sensing probe subassembly 4 in to locate to set up the opening at sensing probe subassembly 4. The translucent cover 7 constitute by main cover 71 and fastening portion 72, main cover 71 is pieced together through top articulated front and back half cover, the department of piecing together of front and back half cover set up the rubber strip, the bottom of front and back half cover is pieced together and is the tube-shape to overlap outside sensing probe subassembly 4, the bottom of front and back half cover is good at sensing probe subassembly 4. Fastening portion 72 is the annular, and fastening portion 72 is located outside the bottom of back half cover in the front through the screw thread cover for translucent cover 7 is convenient for install and is dismantled. The inner wall of the transparent cover 7 is provided with a convex plate 8, so that gaps exist among the transparent cover 7, the lampshade 5 and the shell 1. A handle 11 is arranged above the transparent cover 7.
Transparent cover 7 plays the effect of further protection, simultaneously, and when detecting methane concentration and exceed standard, buzzer 9 sounds, and lamp plate 6 lights, and light reflects between lamp shade 5 and transparent cover 7 for all light in the transparent cover 7, very big expansion luminous volume, make and change discovery audible and visual alarm, improve the security.
Reference throughout this specification to multiple illustrative embodiments means that a particular structure described in connection with the embodiments is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, while a structure has been described in connection with any one embodiment, it is to be understood that it is within the scope of the invention to implement such structure in connection with other embodiments.
Claims (6)
1. Methane sensor for coal mine, including casing (1), main circuit board (2) of encapsulation in casing (1), installation display window subassembly (3) on casing (1), casing (1) below installation sensing probe subassembly (4), lamp shade (5) are still installed to casing (1) top, and lamp plate (6) that lamp shade (5) installation and main circuit board (2) are connected, its characterized in that: the utility model discloses a sensor, including casing (1), translucent cover (7) cover lamp shade (5), casing (1), sensing probe subassembly (4) in to set up the opening in sensing probe subassembly (4) department, the inner wall of translucent cover (7) sets up flange (8), makes to have the clearance between translucent cover (7) and lamp shade (5) and casing (1).
2. The coal mine methane sensor according to claim 1, wherein: translucent cover (7) constitute by main cover (71) and fastening portion (72), main cover (71) is pieced together through top articulated front and back half cover, the bottom of front and back half cover is pieced together and is the tube-shape to the cover is outside sensing probe subassembly (4), fastening portion (72) are the annular, and fastening portion (72) are located outside the bottom of front and back half cover through the thread bush.
3. The coal mine methane sensor according to claim 2, wherein: and rubber strips are arranged at the splicing positions of the front half cover and the rear half cover.
4. The coal mine methane sensor according to claim 2, wherein: the bottom ends of the front half cover and the rear half cover are longer than the sensing probe assembly (4).
5. The coal mine methane sensor according to claim 1, wherein: a handle (11) is also arranged above the transparent cover (7).
6. The coal mine methane sensor according to claim 1, wherein: the shell (1) is internally provided with a buzzer (9), and the buzzer (9) is connected with the main circuit board (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220164.6U CN211927843U (en) | 2020-02-27 | 2020-02-27 | Methane sensor for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020220164.6U CN211927843U (en) | 2020-02-27 | 2020-02-27 | Methane sensor for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211927843U true CN211927843U (en) | 2020-11-13 |
Family
ID=73352075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020220164.6U Expired - Fee Related CN211927843U (en) | 2020-02-27 | 2020-02-27 | Methane sensor for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211927843U (en) |
-
2020
- 2020-02-27 CN CN202020220164.6U patent/CN211927843U/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: 20201113 Termination date: 20210227 |