CN213029910U - Safety helmet suitable for dark culvert operation - Google Patents
Safety helmet suitable for dark culvert operation Download PDFInfo
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- CN213029910U CN213029910U CN202020526986.7U CN202020526986U CN213029910U CN 213029910 U CN213029910 U CN 213029910U CN 202020526986 U CN202020526986 U CN 202020526986U CN 213029910 U CN213029910 U CN 213029910U
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Abstract
The utility model provides a safety helmet suitable for hidden culvert operation, which comprises a helmet body, wherein an audible and visual alarm device, a gas detector switch, a dark space lighting switch, a toxic gas detector, a dark space lighting lamp, a gas detection hole, a 12V lithium battery and a charging socket thereof are arranged in the helmet body; the sound and light alarm device comprises a sound alarm module and a light alarm module which are respectively connected with the toxic gas detector, and when the concentration of the toxic gas detected by the toxic gas detector reaches a certain threshold value, the sound and light alarm device is switched on to automatically alarm. The utility model discloses based on the safety helmet design, convenient to carry, structural arrangement is reasonable, conveniently wears the use in enclosure space work such as dark culvert, can accomplish real-time supervision, and the reaction is more sensitive, and the warning is more rapid.
Description
Technical Field
The utility model relates to a sewage treatment technical field, in particular to safety helmet suitable for dark culvert operation.
Background
Along with the urban development, especially the living space of water bodies in a high-density built-up area is extremely extruded, the natural river channel which originally has the functions of flood management, drainage, landscape water storage and the like is transformed into a dark culvert only having the functions of flood management, drainage and the like, and the water bodies in the box culvert are easy to store a large amount of black and odorous water bodies and black and odorous silt in a dark and closed state for a long time. The drainage pipe network system construction and urbanization process has a disjointing phenomenon, rain sewage is mixed and connected, sewage is directly discharged, and a large amount of sewage enters a dark culvert. In order to eliminate the black and odorous water, the places develop the work of dredging sludge and newly building sewage intercepting pipelines in the hidden culvert, carry out rain and sewage shunting in the hidden culvert, and discharge the sewage into the municipal administration main pipe after being collected by the sewage intercepting pipe.
The hidden culvert belongs to a limited space, the interior of the hidden culvert can be provided with CO2, H2S, and the condition that CO and combustible gas exceed standards, and the hidden culvert is closed, and the content of oxygen O2 also does not reach the standard.
Because the length of dark culvert is long, the environment is comparatively abominable, and most district sections are regular access way not, can not be equipped with fixed alarm device in dark culvert construction, cause, the very big risk of maintainer work in dark culvert.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a safety helmet suitable for dark culvert operation makes things convenient for the engineering personnel to detect harmful gas and in time send the warning when dark culvert cuts dirty pipeline maintenance and management work, improves the pipe and supports efficiency, avoids the engineering personnel to inhale a large amount of toxic gas when the desilting, endangers the healthy and safe hidden danger problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a safety helmet suitable for hidden culvert operation is characterized by comprising a helmet body, wherein an audible and visual alarm device, a gas detector switch, a dark space lighting switch, a toxic gas detector, a dark space lighting lamp, a gas detection hole, a 12V lithium battery and a charging socket thereof are arranged in the helmet body; the sound and light alarm device comprises a sound alarm module and a light alarm module which are respectively connected with the toxic gas detector, and when the concentration of the toxic gas detected by the toxic gas detector reaches a certain threshold value, the sound and light alarm device is switched on to automatically alarm.
Further, the front part and the top part of the cap body are provided with mounting cavities protruding out of the radian of the cap body along the central line of the cap body, the toxic gas detector is arranged in the front mounting cavity, the front cavity forms the front surface of the cap body at the front end of the cap body, the front surface of the cap body is provided with a display screen of the toxic gas detector, and the dark space illuminating lamp, the gas detection hole and the alarm lamp of the audible and visual alarm are all arranged on the front surface of the cap body.
Further, a gas detector switch and a dark space lighting switch are arranged on the front surface of the cap body, and a charging socket is arranged on the side surface of the top mounting cavity.
Further, the 12V lithium battery adopts a 12V explosion-proof safe rechargeable lithium battery.
The utility model has the advantages that: (1) the device is designed based on the safety helmet, is convenient to carry, reasonable in structural arrangement, convenient to wear and use in closed space work such as a hidden culvert and the like, can achieve real-time monitoring, is sensitive in response and is rapid in alarm; (2) different warning modes can be set according to the combination of sound alarm and light alarm, and people can be reminded visually; (3) the utility model discloses a 12V safety lithium cell accords with the explosion-proof requirement in finite space to can charge, reuse.
Drawings
The invention will be further described with reference to the accompanying drawings:
FIG. 1 is a three-dimensional view of the utility model of a hidden culvert sewage intercepting pipe maintenance safety helmet
Fig. 2 is a schematic circuit diagram of the utility model of a hidden culvert sewage intercepting pipe maintenance safety helmet.
Detailed Description
As shown in fig. 1 to 2, the safety helmet suitable for culvert operation of the present embodiment includes a helmet body 100, wherein the helmet body 100 is provided with an audible and visual alarm device 1, a gas detector switch 2, a dark space lighting switch 3, a toxic gas detector 4, a dark space lighting lamp 5, a gas detection hole 6, a 12V lithium battery 7, and a charging socket 8.
Set up outstanding installation cavity 101 in the cap body radian along the central line of the cap body in the front portion of the cap body 100 and top, wherein, the battery compartment setting of 12V lithium cell 7 is in top installation cavity, and reference numeral 70 battery compartment lid sets up on the outside surface at top installation cavity, and 12V lithium cell 7 is as the utility model discloses all power consumption device's in the safety helmet power.
The toxic gas detector 4 is disposed in the front installation cavity having a sufficient space for disposing the detection device by using the downward arc of the cap body itself. Reference numeral 40 is toxic gas detector 4's display screen, can show toxic gas detector 4's measured value to from this, the installation cavity forms the safety helmet front 102 that has certain area at the front end of the cap body, and dark space light 5, gas detection hole 6, audible-visual annunciator's alarm lamp 10 all can set up at this front 102, can work more high-efficiently, and toxic gas detector 4's detecting element just sets up behind gas detection hole 6. Gas detector switch 2 and dark space illumination switch 3 may both be disposed on front face 102. Charging socket 8 sets up the side at the top installation cavity. Like this, the function performance of functional device, mechanism of being convenient for, switch operation is also convenient for, simultaneously for the weight distribution of the safety helmet that is applicable to the dark culvert operation is more reasonable, is difficult for crooked when wearing, wears more comfortablely.
In use, the gas detector switch 2 is turned on to collect gas samples through the gas detection holes 6, and when the LOW alarm value LOW of toxic gas of the detection object is reached, the switch L1 automatically links the light alarm device 1 to generate light alarm. When the HIGH alarm value HIGH of the toxic gas of the detection object is reached, the switches L1 and L2 are automatically linked with the acousto-optic alarm device 1 to generate acousto-optic alarms.
The alarm value setting standard of the gas detector is set according to the limit specified in workplace harmful factor occupational contact limit (GBZ 2-2007).
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A safety helmet suitable for hidden culvert operation is characterized by comprising a helmet body, wherein an audible and visual alarm device, a gas detector switch, a dark space lighting switch, a toxic gas detector, a dark space lighting lamp, a gas detection hole, a 12V lithium battery and a charging socket thereof are arranged in the helmet body; the sound and light alarm device comprises a sound alarm module and a light alarm module which are respectively connected with the toxic gas detector, and when the concentration of the toxic gas detected by the toxic gas detector reaches a certain threshold value, the sound and light alarm device is switched on to automatically alarm.
2. A safety helmet adapted for culvert operation in accordance with claim 1, wherein: the front part and the top part of the cap body are provided with mounting cavities protruding out of the radian of the cap body along the central line of the cap body, the toxic gas detector is arranged in the front mounting cavity, the front cavity forms the front surface of the cap body at the front end of the cap body, the front surface of the cap body is provided with a display screen of the toxic gas detector, and the dark space illuminating lamp, the gas detection hole and the alarm lamp of the audible and visual alarm are all arranged on the front surface of the cap body.
3. A safety helmet adapted for culvert operation according to claim 2, wherein: the gas detector switch and the dark space lighting switch are also arranged on the front surface of the cap body, and the charging socket is arranged on the side surface of the top mounting cavity.
4. A safety helmet adapted for culvert operation in accordance with claim 1, wherein: the 12V lithium battery adopts a 12V explosion-proof safe rechargeable lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526986.7U CN213029910U (en) | 2020-04-10 | 2020-04-10 | Safety helmet suitable for dark culvert operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020526986.7U CN213029910U (en) | 2020-04-10 | 2020-04-10 | Safety helmet suitable for dark culvert operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213029910U true CN213029910U (en) | 2021-04-23 |
Family
ID=75519268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020526986.7U Active CN213029910U (en) | 2020-04-10 | 2020-04-10 | Safety helmet suitable for dark culvert operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213029910U (en) |
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2020
- 2020-04-10 CN CN202020526986.7U patent/CN213029910U/en active Active
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