CN220872435U - Portable harmful gas detection device - Google Patents
Portable harmful gas detection device Download PDFInfo
- Publication number
- CN220872435U CN220872435U CN202322282386.7U CN202322282386U CN220872435U CN 220872435 U CN220872435 U CN 220872435U CN 202322282386 U CN202322282386 U CN 202322282386U CN 220872435 U CN220872435 U CN 220872435U
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- harmful gas
- module
- housing
- gas detection
- controller
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- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 230000006698 induction Effects 0.000 claims abstract description 39
- 230000003993 interaction Effects 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 95
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 21
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 16
- 238000004891 communication Methods 0.000 claims description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000007689 inspection Methods 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 8
- 229910052739 hydrogen Inorganic materials 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The utility model discloses a portable harmful gas detection device which comprises a shell, a power module, a controller, an alarm, a harmful gas induction module and a man-machine interaction module, wherein the shell is hollow and vertically arranged, the controller and the harmful gas induction module are both arranged in the shell, the power module and the alarm are arranged on the shell, the man-machine interaction module is arranged on the front side of the shell, an induction hole is formed in the front side of the shell, a grille cover with the middle part protruding forwards is arranged at the induction hole, the induction part of the harmful gas induction module extends out of the shell through the induction hole and is positioned in a groove of the grille cover, and the power module, the alarm, the harmful gas induction module and the man-machine interaction module are all electrically connected with the controller.
Description
Technical Field
The utility model belongs to the field of gas detection equipment, and particularly relates to a portable harmful gas detection device.
Background
For a thermal power plant, coal is used for providing power, and combustible or harmful gases such as hydrogen, carbon monoxide, sulfur dioxide or nitrogen oxides are generated during coal burning, if the concentration of the gases diffused in a plant area of the power plant exceeds the limit, firstly, the gases are unfavorable for the health of workers, secondly, safety risks exist, meanwhile, environmental protection is unfavorable, at present, when the power plant is patrolled and examined, corresponding detection equipment is carried manually to randomly select measurement points in the plant area for measurement, of course, fixed monitoring stations can be arranged at key points for measurement, the efficiency is low, the measurement points are limited, the key points are only monitored by the later, the data are not representative, for example, a harmful gas detection device for the power plant is disclosed by the document No. CN218067808U, but the structure is complex, the environment is not convenient to carry, the problem of course, the detection range is limited, the gas detection blind area is easy to appear, and the risk of serious leakage accidents is increased; the uploading data mainly depends on wired transmission, the line is redundant, and the economic cost is too high; the on-site inspection staff can not acquire real-time gas information, only can remind through centralized control room staff, and the situation that prompt is not timely or centralized control room staff ignores information possibly occurs, so that safety accidents are caused, in addition, the portable hydrogen leak detector with the document number of CN209927373U can be carried, but a fan is required to be arranged in the portable hydrogen leak detector to suck air so that air flows at an inductor, and therefore whether hydrogen exists in the air or not is detected conveniently, and the volume of the portable hydrogen leak detector is relatively large.
Disclosure of utility model
In order to solve the technical problems, the utility model aims to provide the portable harmful gas detection device which is simple in structure, portable and convenient for patrol personnel to timely master whether harmful gas on a factory patrol line exceeds standard.
In order to achieve the above object, the technical scheme of the present utility model is as follows: the utility model provides a portable harmful gas detection device, includes casing, power module, controller, alarm, harmful gas induction module and human-computer interaction module, the inside cavity of casing and vertical setting, controller and harmful gas induction module all set up in the casing, power module and alarm set up on the casing, human-computer interaction module sets up the front side of casing, the front side of casing is provided with the induction hole, just induction hole department is provided with the middle part and inwards protrudes the grille cover, harmful gas induction module's induction part is passed through the induction hole stretches out to outside the casing, and is located in the groove of grille cover, power module, alarm, harmful gas induction module and human-computer interaction module all with the controller electricity is connected.
The beneficial effects of the technical scheme are that: through setting up the induction hole on the casing to set up the outwards outstanding grille cover in induction hole department, stretch out harmful gas sensor's induction part to through the induction hole in the inslot of grille cover simultaneously, make this portable harmful gas detection device like this when removing, can make the air flow of grille cover department, thereby be favorable to improving harmful gas sensor induction sensitivity, inform harmful gas sensor's the concentration of the harmful gas that should have in real time by man-machine interaction module simultaneously, and when harmful gas concentration exceeds standard, send alarm signal by the alarm.
The technical scheme further comprises a communication module, wherein the communication module is arranged in the shell and is electrically connected with the controller, and the communication module is used for being in communication connection with the terminal equipment.
The beneficial effects of the technical scheme are that: the controller can transmit the concentration of the harmful gas sensed by the harmful gas sensor to the terminal equipment in real time through the communication module for storage so as to be called by a rear end person according to the requirement.
The technical scheme further comprises a positioning module which is arranged in the shell and is electrically connected with the controller.
The beneficial effects of the technical scheme are that: therefore, the controller can couple the concentration of the harmful gas sensed by the harmful gas sensor with the positioning data of the positioning module, and the coupled data is transmitted to the terminal equipment, so that the terminal equipment can know the concentration of the harmful gas at all positions along the line according to the routing inspection circuit diagram.
In the above technical scheme, the man-machine interaction module is a display screen, which is embedded in the middle of the front side of the shell.
The beneficial effects of the technical scheme are that: the structure is simple.
In the above technical scheme, the alarm is a buzzer which is arranged in the shell, and a plurality of sound outlets are uniformly distributed on the shell at positions close to the alarm.
The beneficial effects of the technical scheme are that: the alarm device is simple in structure, and the alarm signal is easy to know by people in real time.
In the above technical scheme, the power module comprises a storage battery arranged in the shell and a charging interface embedded in the shell, and the charging interface and the controller are electrically connected with the storage battery.
The beneficial effects of the technical scheme are that: the use cost is low.
In the above technical scheme, the rear side of the shell is further provided with a clip, and the clip is used for clamping the shell on the carrier.
The beneficial effects of the technical scheme are that: so that the harmful gas detection device can be clamped at the collar of the inspection personnel or the pocket of the chest through the clip.
In the above technical scheme, the harmful gas induction module comprises four gas inductors, wherein the four gas inductors are respectively a hydrogen inductor, a carbon monoxide inductor, a sulfur dioxide inductor and a nitrogen oxide inductor, the four gas inductors are all installed in the shell, and the induction parts of the four gas inductors extend out of the shell through the induction holes and are positioned in the grooves of the grid cover.
The beneficial effects of the technical scheme are that: the device has a simple structure, and can monitor the concentration of various harmful gases at the same time.
According to the technical scheme, the four sensing holes are formed in the mode that the sensing holes correspond to the four gas sensors one by one, each sensing hole is provided with a grid cover with the middle portion protruding forwards, and the sensing part of each gas sensor extends out of the shell through the corresponding sensing hole and is located in the corresponding groove of the grid cover.
The beneficial effects of the technical scheme are that: the structure is simple, and all the gas sensors do not interfere with each other.
In the technical scheme, the grid cover is a spherical groove-shaped steel wire mesh.
The beneficial effects of the technical scheme are that: the structure is simple, and the protection effect is good.
Drawings
Fig. 1 is a front view of a portable harmful gas detection apparatus according to embodiment 1 of the present utility model;
FIG. 2 is a side view of a portable harmful gas detection apparatus according to embodiment 1 of the present utility model;
fig. 3 is a cross-sectional view of the portable harmful gas detection apparatus according to embodiment 1 of the present utility model;
FIG. 4 is an electrical connection diagram of the controller according to embodiment 1 of the present utility model;
FIG. 5 is an exploded view of the housing according to embodiment 2 of the present utility model;
Fig. 6 is a schematic structural diagram of a buckle, a first card slot and a second card slot in embodiment 2 of the present utility model;
FIG. 7 is a cross-sectional view of the front shell, mounting plate and rear shell of embodiment 2 of the present utility model when engaged;
fig. 8 is an electrical connection diagram of the controller in embodiment 3 of the present utility model.
In the figure: 1 shell, 11 response hole, 12 grid cover, 13 play sound hole, 14 clip, 15 preceding shell, 151 screw hole, 152 first draw-in groove, 16 mounting panel, 161 through-hole, 162 buckle, 17 backshell, 171 connecting hole, 172 second draw-in groove, 18 screw, 2 power module, 21 battery, 22 interface that charges, 3 controller, 4 alarm, 5 orientation module, 6 harmful gas response module, 61 gas sensor, 7 human-computer interaction module, 8 communication module.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The utility model is more particularly described by way of example in the following paragraphs with reference to the drawings. Advantages and features of the utility model will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the utility model.
Example 1
As shown in fig. 1-4, this embodiment provides a portable harmful gas detection device, including casing 1, power module 2, controller 3, alarm 4, harmful gas induction module 6 and human-computer interaction module 7, casing 1 inside cavity and vertical setting, controller 3 and harmful gas induction module 6 all set up in the casing 1, power module 2 and alarm 4 set up on casing 1, human-computer interaction module 7 sets up the front side of casing 1, the front side of casing 1 is provided with sensing hole 11, just sensing hole 11 department is provided with middle part forward protruding grid cover 12, harmful gas induction module 6's induction part is warp sensing hole 11 stretches out to outside casing 1, and is located grid cover 12's inslot, power module 2, alarm 4, harmful gas induction module 6 and human-computer interaction module 7 all with controller 3 electricity are connected, through setting up the sensing hole on the casing to outwards outstanding grid cover in sensing hole department, simultaneously with the sensor harmful gas induction part is in the front side of casing 1, and simultaneously makes the harmful gas sensor send out the harmful gas concentration of the sensor through the mutual inductor of the middle part forward protruding grid cover, thereby the portable harmful gas concentration sensor is beneficial to the portable air concentration sensor, and the high-time alarm device. The controller in this embodiment may employ an ESP32-C3-DevKitC-02 development board based on 32-bit single core system in package (RISC-V), operating at 160MHz, providing sufficient computing power to handle complex algorithms and data streams.
In the above technical solution, the harmful gas induction module 6 includes four gas inductors 61, four the gas inductors 61 are respectively a hydrogen gas inductor, a carbon monoxide inductor, a sulfur dioxide inductor and a nitrogen oxide inductor, four the gas inductors 61 are all installed in the shell 1, and the induction parts of the four gas inductors are all extended out of the shell 1 through the induction holes 11 and are positioned in the grooves of the grille cover 12, the structure is simple, and the concentration of various harmful gases can be monitored simultaneously, wherein the hydrogen gas inductor can be a hydrogen gas sensor block with the model number of MQ-8, the carbon monoxide inductor can be a carbon monoxide sensor with the model number of MQ-7, the sulfur dioxide inductor can be a sulfur dioxide sensor with the model number of 2SH12, and the nitrogen oxide can be a gas sensor with the model number of MICS-4514.
In the above technical solution, the sensing holes 11 are four, the four sensing holes 11 are in one-to-one correspondence with the four gas sensors 61, each sensing hole 11 is provided with a grille cover 12 with a middle portion protruding forward, and the sensing portion of each gas sensor 61 extends out of the housing 1 through the corresponding sensing hole 11 and is located in a groove corresponding to the grille cover 12, so that the structure is simple, and the gas sensors do not interfere with each other.
In the above technical scheme, the grille cover 12 is a spherical groove-shaped steel wire mesh (which can be 20-40 mesh steel wire mesh), and has simple structure and good protection effect.
In the above technical solution, the rear side of the housing 1 is further provided with a clip 14, and the clip 14 is used for clamping the housing 1 on a carrier, so that the harmful gas detection device can be clamped at the collar of the inspection personnel or the pocket of the chest through the clip.
In the above technical solution, the man-machine interaction module 7 is a display screen, which is embedded in the middle of the front side of the housing 1, and has a simple structure (the display screen can adopt an OLED display screen module, and the display screen has good display effect and wide viewing angle characteristics, and can clearly display the concentration values of various harmful gases at present).
In the above technical scheme, the alarm 4 is a buzzer, which is installed in the housing 1, and a plurality of sound outlets 13 are uniformly distributed at positions on the housing 1, which are close to the alarm 4, so that the structure is simple, and the alarm signal is easy to be known by a person in real time (when the harmful gas is detected to exceed the standard, the buzzer will sound more than 85 db, so that the on-site personnel can be effectively reminded).
In the above technical solution, the power module 2 includes a storage battery 21 disposed in the housing 1 and a charging interface 22 embedded in the housing 1, where the charging interface 22 and the controller 3 are electrically connected with the storage battery 21, and the use cost of the power module is low (of course, the power module may also be a battery case disposed on the rear side of the housing, and used for accommodating a battery therein).
As shown in fig. 3, the housing in this embodiment may include a front housing 15, a mounting plate 16, and a rear housing 17, where the front housing 15 and the rear housing 17 are each in a groove shape, the notch of the front housing 15 faces backward, the notch of the rear housing 17 faces forward, the mounting plate 16 is vertically sandwiched between the front housing 15 and the rear housing 17, the notches of the front housing 15 and the rear housing 17 are butted, the sensing hole 11 is disposed on the bottom wall of the groove of the front housing 15, the man-machine interaction module 7 is disposed in the middle of the bottom wall of the groove of the front housing 15, the controller 3 and the four gas sensors 61 are disposed on the front side of the mounting plate 16, the alarm 4 and the battery 21 may be disposed on the rear side of the mounting plate 16, the front housing 15 and the rear housing 17 may be connected by a plurality of screws 18 and sandwich the mounting plate 16, and the charging interface 22 may be disposed on the side wall of the front housing 15 or the rear housing 17, and the clip 14 is disposed on the rear side of the middle 17.
With continued reference to fig. 3, the front case 15 and the rear case 17 may be square cases, the mounting plate 16 may be square plates, the screws 18 may be four, the four corners of the front case 15 near the notch are concavely provided with threaded holes 151, the four corners of the rear case 17 are provided with through connection holes 171, and the four corners of the mounting plate 16 are also provided with through holes 161, for the case, the connection holes 171, the through holes 161 and the threaded holes 151 at the same corner are aligned, and a screw 18 is inserted, so that the screw 18 is screwed with the threaded holes 151.
In this embodiment, the standard exceeding threshold values of the four harmful gases may be preset by the controller, for example, the standard exceeding threshold value of the hydrogen may be set to 0ppm (i.e. the alarm may be given when the hydrogen contained in the air is detected), the standard exceeding threshold value of the carbon monoxide may be set to 100ppm (i.e. the alarm may be given when the concentration of the carbon monoxide in the air is detected to 100 ppm), the standard exceeding threshold value of the sulfur dioxide may be set to 200mg/Nm 3 (i.e. the alarm may be given when the concentration of the sulfur dioxide in the air is detected to 200mg/Nm 3), and the standard exceeding threshold value of the nitrogen oxide may be set to 200mg/Nm 3 (i.e. the alarm may be given when the concentration of the nitrogen oxide in the air is detected to 200mg/Nm 3), wherein the gas sensors may have an allowable error due to the sensitivity difference.
Example 2
The difference between the embodiment 1 is that, as shown in fig. 5-7, the front side and the rear side of the middle parts of two opposite sides of the mounting plate 16 may be respectively provided with a buckle 162, while the middle parts of two sides corresponding to the notch of the front shell 15 are respectively provided with a first clamping groove 152 matched with the buckle, and the middle parts of two sides corresponding to the notch of the rear shell 17 are respectively provided with a second clamping groove 172 matched with the buckle, so when the front shell 15 and the rear shell 17 clamp the mounting plate 16 therebetween, the two buckles 162 on the front side of the mounting plate 16 can be clamped with the two first clamping grooves 152 of the front shell 15, and the two buckles 162 on the rear side of the mounting plate 16 can be clamped with the two second clamping grooves 172 of the rear shell 17, so that the mounting plate 16 is respectively clamped with the front shell 15 and the rear shell 17, and the mounting plate 16 is respectively provided with the notches of the front shell 15 and the rear shell 17, so that the mounting plate 16 is more convenient to assemble and disassemble (when the front shell 15, the mounting plate 16 and the rear shell 17 are connected without using screws), one end of the buckle 162 is in an L shape, the two buckles 162 is clamped with the corresponding to the edge of the mounting plate 16 and faces the first clamping groove 152, and the corresponding to the first clamping groove 152 is arranged in a vertical shape, and the first clamping groove is clamped with the corresponding to the first clamping groove 152, and the first clamping groove is clamped into the corresponding to the first clamping groove and the first groove structure.
The buckle and the mounting plate are integrally formed, and the buckle has certain elasticity so as to be conveniently clamped into the first clamping groove and the second clamping groove.
Example 3
As shown in fig. 8, the embodiment 1 or embodiment 2 is different in that the above technical solution further includes a communication module 8, where the communication module 8 is disposed in the housing 1 and is electrically connected to the controller 3, and the communication module 8 is configured to be communicatively connected to a terminal device, so that the controller can transmit, through the communication module, the concentration of the harmful gas sensed by the harmful gas sensor to the terminal device in real time for storage and be called by a back end person as required, and the communication module may be a WI F I module, a 5G module or a GPRS module, and the terminal device is a computer, and the communication module is wirelessly connected to the terminal device, thereby implementing signal transmission.
The above technical scheme further includes a positioning module 5 (may be a GPS positioning chip and/or a beidou positioning chip), where the positioning module 5 is disposed in the housing 1 and electrically connected with the controller 3, so that the controller may couple the concentration of the harmful gas sensed by the harmful gas sensor with positioning data of the positioning module, and transmit the coupled data to the terminal device, the terminal device may learn the concentration of the harmful gas at each position along the line according to the routing inspection line diagram, and the communication module 8 and the positioning module 5 are both mounted on the mounting board, so that the routing inspection line of the routing inspection personnel may be displayed on the terminal device in a line form, and the line of the area where the harmful gas exceeds the standard may be red (and the line of the area where the harmful gas does not exceed the standard may be green), so that the general area where the harmful gas leaks in the factory may be learned based on the routing inspection line diagram of the inspection personnel, so as to perform the special inspection of the safety production.
The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the present utility model in any way; those skilled in the art will readily appreciate that the present utility model may be implemented as shown in the drawings and described above; however, those skilled in the art will appreciate that many modifications, adaptations, and variations of the present utility model are possible in light of the above teachings, without departing from the scope of the utility model; meanwhile, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present utility model still fall within the scope of the present utility model.
Claims (10)
1. The utility model provides a portable harmful gas detection device, its characterized in that, including casing (1), power module (2), controller (3), alarm (4), harmful gas induction module (6) and human-computer interaction module (7), the inside cavity of casing (1) is vertical to be set up, controller (3) and harmful gas induction module (6) all set up in casing (1), power module (2) and alarm (4) set up on casing (1), human-computer interaction module (7) set up the front side of casing (1), the front side of casing (1) is provided with sensing hole (11), just sensing hole (11) department is provided with middle part forward protruding grille cover (12), the induction part of harmful gas induction module (6) is passed through sensing hole (11) stretch out to outside casing (1) and be located the groove of grille cover (12), power module (2), alarm (4), harmful gas induction module (6) and human-computer interaction module (7) all are connected with controller (3).
2. The portable harmful gas detection apparatus according to claim 1, further comprising a communication module (8), the communication module (8) being disposed within the housing (1) and electrically connected to the controller (3), the communication module (8) being adapted to be communicatively connected to a terminal device.
3. The portable harmful gas detection apparatus according to claim 2, further comprising a positioning module (5), the positioning module (5) being disposed within the housing (1) and electrically connected to the controller (3).
4. The portable harmful gas detection device according to claim 1, wherein the man-machine interaction module (7) is a display screen embedded in the middle of the front side of the housing (1).
5. The portable harmful gas detection device according to claim 1, wherein the alarm (4) is a buzzer, which is installed in the housing (1), and a plurality of sound outlets (13) are uniformly distributed on the housing (1) at positions close to the alarm (4).
6. The portable harmful gas detection apparatus according to claim 1, wherein the power module (2) includes a storage battery (21) provided in the housing (1) and a charging interface (22) embedded on the housing (1), and the charging interface (22) and the controller (3) are electrically connected to the storage battery (21).
7. Portable harmful gas detection unit according to claim 1, characterized in that the rear side of the housing (1) is further provided with a clip (14), which clip (14) is used to clamp the housing (1) on a carrier.
8. The portable harmful gas detection apparatus according to claim 1, wherein the harmful gas induction module (6) includes four gas inductors (61), the four gas inductors (61) are a hydrogen gas inductor, a carbon monoxide inductor, a sulfur dioxide inductor and a nitrogen oxide inductor, respectively, the four gas inductors (61) are all installed in the housing (1), and sensing parts thereof are all protruded out of the housing (1) through the sensing holes (11) and are located in the grooves of the grill cover (12).
9. The portable harmful gas detection apparatus according to claim 8, wherein four sensing holes (11) are provided, the four sensing holes (11) are respectively in one-to-one correspondence with the four gas sensors (61), a grill cover (12) with a front protruding middle part is provided at each sensing hole (11), and a sensing part of each gas sensor (61) protrudes out of the housing (1) through the corresponding sensing hole (11) and is positioned in a groove corresponding to the grill cover (12).
10. Portable harmful gas detection unit according to any of claims 1-9, characterized in that the grille cover (12) is a spherical trough-shaped steel wire mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322282386.7U CN220872435U (en) | 2023-08-24 | 2023-08-24 | Portable harmful gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322282386.7U CN220872435U (en) | 2023-08-24 | 2023-08-24 | Portable harmful gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872435U true CN220872435U (en) | 2024-04-30 |
Family
ID=90808635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322282386.7U Active CN220872435U (en) | 2023-08-24 | 2023-08-24 | Portable harmful gas detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872435U (en) |
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2023
- 2023-08-24 CN CN202322282386.7U patent/CN220872435U/en active Active
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