CN214703524U - Job site safety identification system - Google Patents
Job site safety identification system Download PDFInfo
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- CN214703524U CN214703524U CN202120824182.XU CN202120824182U CN214703524U CN 214703524 U CN214703524 U CN 214703524U CN 202120824182 U CN202120824182 U CN 202120824182U CN 214703524 U CN214703524 U CN 214703524U
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Abstract
The utility model provides a job site safety identification system, includes harmful gas monitoring devices, and it includes gaseous collection district and gaseous detection zone, gaseous collection district front end is equipped with the air inlet, gaseous detection zone tail end is equipped with the gas outlet. A harmful gas detector is arranged in the gas detection area and used for detecting whether harmful gas exists in the air or not and qualitatively and quantitatively analyzing the harmful gas; the alarm is also arranged and used for giving an alarm according to the detection result of the harmful gas detector and reminding constructors so as to avoid the expansion of a dangerous range; and the GPS positioning device is also arranged and used for positioning the specific position where the harmful gas exists and reporting the specific position to the ground command center through the wireless communication device. Wear this device on the constructor body to in the underground works work progress of solving, when having interim harmful gas to leak, or like the position that is difficult to ventilate such as the tunnel is lower, tunnel dead angle, when having harmful gas to accumulate, the constructor is difficult to notice the problem.
Description
Technical Field
The utility model relates to an engineering equipment field, in particular to job site safety identification system.
Background
In the underground engineering construction, the surrounding rock is not only an excavation object, but also a medium and a support for forming a cavern, and is also a main body for ensuring the stability of the cavern. Adverse geological phenomena such as surrounding rock breakage, crack development, karst water exposure and the like, and sudden geological disasters such as harmful gas, high temperature and high pressure, gas leakage and the like can be encountered in the tunnel excavation process. Particularly, harmful gases overflow from surrounding rocks under the action of external force and are scattered in the tunnel, so that the construction personnel are not favorable for health, and the explosion is very easy to occur when the volume of the harmful gases is accumulated to a certain concentration, thereby causing the property loss of the personnel. Therefore, in the underground engineering construction, the potential dangers of various harmful gases are fully recognized, and the detection and prevention work of the harmful gases such as nitrogen, carbon monoxide, hydrogen sulfide, methane and the like is well done.
At present, a gas detector is generally adopted for harmful gas exploration, and a gas pressure gauge and a flow meter are matched to find the buried depth of a top plate and a bottom plate of a gas-containing soil layer and gas pressure and flow parameters. Further, gas ignition tests are conducted at the construction site and gas samples are taken for compositional analysis. However, the above-mentioned measures are all preparation works before construction, and in the underground engineering construction process, the possibility of temporary harmful gas leakage also exists; the harmful gas accumulation phenomenon often exists in the positions which are difficult to ventilate, such as the lower part of the tunnel, the dead corners of the tunnel and the like. Therefore, this scheme provides a systematic device, can satisfy in the underground works work progress, carries out the continuation monitoring to harmful gas, ensures constructor and property safety more comprehensively.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the utility model provides a job site safety identification system has solved underground works work progress, when having temporary harmful gas to leak, or like the tunnel is lower, tunnel dead angle etc. are difficult to the position of ventilating, when having harmful gas to accumulate, problem that constructor is difficult to perceive.
The utility model adopts the technical scheme as follows:
the utility model provides a job site safety identification system, includes harmful gas monitoring devices, harmful gas monitoring devices includes that gas gathers district and gas detection area, gas gathering district front end is equipped with the air inlet, gas detection area tail end is equipped with the gas outlet, and harmful gas gets into so that to gather district, gas detection area through the gas by the air inlet after discharge by the gas outlet. The device has a simple working principle, and is mainly used for guiding air in the tunnel to flow through the harmful gas monitoring device, so that the tail of the internal gas collection area of the device is provided with the fan, and the air is guided to flow through the fan, so that the air needs to be guided to flow from the air inlet end to the air outlet end in the rotating direction of the fan. The side of the fan is provided with a gas flowmeter for collecting the gas flow passing through the fan, and the gas flow data and the data collected by the harmful gas detector are combined for calculation, so that the content of the harmful gas in the current air can be approximately obtained.
A harmful gas detector is arranged in the gas detection area and used for detecting whether harmful gas exists in the air or not and qualitatively and quantitatively analyzing the harmful gas; the system is also provided with an alarm for alarming according to the detection result of the harmful gas detector, and comprises a wireless communication device for alarming to a ground command center, a field real-time buzzing alarm and a voice alarm for reminding constructors so as to avoid the expansion of a dangerous range; the GPS positioning device is also arranged and used for positioning the specific position where the harmful gas exists and reporting the position to the ground command center through the wireless communication device; the gas flowmeter is characterized by also comprising a single chip microcomputer, wherein the single chip microcomputer is electrically connected with the gas flowmeter, the harmful gas detector, the alarm, the wireless communication device, the GPS positioning device and the like; and the power supply device is used for providing power support for the equipment.
Furthermore, a filter screen inserting port is formed in the side wall of the air inlet end of the gas collection area, and a filter screen can be installed to filter large particles in the air; wherein, the installation direction of the filter screen is vertical to the gas flow direction. Set up the work that the filter screen disturbed fan, gas flowmeter, harmful gas detection instrument in order to avoid large granule thing such as dust to influence the working property of this device. In this device, the filter screen passes through filter screen cartridge department direct mount in the air inlet end, can self-define the filter screen according to the filter screen contaminated condition promptly with trade the cycle.
Furthermore, the side walls of two sides of the harmful gas monitoring device are symmetrically provided with first positioning pieces; still include the fixed band, the fixed band both ends set up the fastener, and its fastener can link up with first locating part buckle. This device design is original intention, is in order to solve underground works work progress, when having interim harmful gas to leak, or like the position that is difficult to ventilate such as the tunnel is lower, tunnel dead angle, when having harmful gas to accumulate, the problem that the constructor is difficult to perceive. Therefore, it is preferable to wear the device on the construction worker. After having set up first setting element and the fixed band that includes the fastener, can connect this device and constructor position that has the second setting element on one's body wantonly through the fixed band.
Further, the harmful gas detector includes a methane detector, a nitrogen detector, a carbon monoxide detector, and a hydrogen sulfide detector. The mucky soil layer in the foundation soil of the construction site belongs to marine deposition and is a main enrichment layer of underground harmful gas, the harmful gas is mainly methane and occupies about 92 percent of the total amount of the harmful gas, and the mucky soil layer also comprises about 4 percent of nitrogen and about 3 percent of carbon monoxide. Although methane is basically nontoxic, when the methane in the air reaches 25-30%, headache, dizziness, weakness and heartbeat acceleration can be caused, and if the methane is not in time, suffocation death can be caused; skin contact with liquefied methane can cause frostbite; the methane is inflammable and can be mixed with air to form an explosive mixture with the volume fraction of 5-15.4%, and the explosive mixture can be burnt and exploded when meeting heat sources and open fire. Therefore, the indexes necessary for detecting the harmful gas include the methane content, the nitrogen content and the carbon monoxide content.
In addition, according to above-mentioned job site safety identification system, including the special safety helmet of engineering, harmful gas monitoring devices dismantled and assembled sets up in the special safety helmet top of engineering. As mentioned above, the device is generally used by being worn by a constructor, and preferably, can be mounted on the top of an engineering safety helmet worn by the constructor, can be displaced along with the displacement of the constructor and is arranged on the top of the head to facilitate the air flow through the device.
Furthermore, the engineering special safety helmet comprises a helmet body, wherein a camera and a spotlight are arranged at the front end of the outer side of the helmet body, a first key and a second key which are used for controlling the camera and the spotlight to be opened and closed respectively are arranged at the brim of the outer side of the helmet body, a power supply and a controller are arranged in the helmet body, and the controller is electrically connected with the camera and the spotlight respectively through the first key and the second key; the two sides of the outer side of the cap body are provided with second positioning pieces.
The camera records image information of a construction site, so that a ground command center can supervise whether the behavior of constructors is in compliance or not, whether the working environment meets the requirements or not and the like in real time; meanwhile, when the site project is subjected to concealed engineering, the image and video retention is guaranteed, and the earth backfill and other operations can be carried out only after the uploaded image is approved by the supervision and engineering management and control department, so that the trace retention and traceability of engineering quality delivery are achieved. In the device, the first key controls the camera to work, the first key is pressed for a short time to take a picture, and the first key is pressed for a long time to record a video.
The spotlight can be controlled to be opened and closed through the second key. Light is darker among the underground construction process, sets up the spotlight and both be convenient for constructor operation, and the camera of also being convenient for gathers image information.
Further, the spotlight is arranged above the camera. The problem that the information of the image collected by the camera is distorted due to the factors of the spotlight is avoided.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. a job site safety identification system, gather underground construction environment's air through harmful gas monitoring devices, carry out qualitative and quantitative analysis to harmful gas again. If the device monitors harmful gas and the concentration of the harmful gas is greater than the safe concentration, the device gives an alarm to a ground command center through the wireless communication device, gives a buzzing alarm and a voice alarm in real time on site, and uploads the specific position of the harmful gas to the ground command center through the GPS positioning device so as to ensure the safety of constructors and property.
2. The harmful gas monitoring device of the utility model is provided with the first positioning piece and the fixing belt comprising the fastening piece, and the device can be connected with the position of the second positioning piece on the body of the constructor through the fixing belt, so that the device can move along with the displacement of the constructor; preferably, the safety helmet can be installed on the top of an engineering special safety helmet worn by construction personnel.
Drawings
In order to more clearly illustrate the technical solution, the drawings needed to be used in the embodiments are briefly described below, and it should be understood that, for those skilled in the art, other related drawings can be obtained according to the drawings without creative efforts, wherein:
FIG. 1 is a schematic view of the harmful gas monitoring device of the present invention;
FIG. 2 is a side view of the harmful gas monitoring device of the present invention;
FIG. 3 is a schematic view of the harmful gas monitoring device of the present invention combined with a safety helmet for engineering;
in the figure, 1-gas collection area, 2-gas detection area, 3-fan, 4-gas flow meter, 5-harmful gas detector, 6-filter screen, 7-first positioning piece, 8-second positioning piece, 9-camera, 10-spotlight, 11-first button and 12-second button.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments, and therefore should not be considered as limitations to the scope of protection. Based on the embodiments in the present invention, all other embodiments obtained by the staff of ordinary skill in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in detail with reference to fig. 1 to 3.
The utility model provides a job site safety identification system, includes harmful gas monitoring devices, harmful gas monitoring devices includes that gas gathers district 1 and gas detection area 2, 1 front end in gas collection district is equipped with the air inlet, 2 tail ends in gas detection area are equipped with the gas outlet, and harmful gas gets into with this through gas collection district 1, gas detection area 2 back by the gas outlet discharge by the air inlet.
This device theory of operation is simple, and its focus lies in the harmful gas monitoring devices of guiding air current in the tunnel, and consequently, 1 afterbody in this device inside gas collection district is equipped with fan 3, and the air flow is guided through fan 3, so 3 pivoted directions of fan need guide air to flow to the gas outlet end by the inlet end. The side of the fan 3 is provided with a gas flowmeter 4 for collecting the gas flow passing through the fan 3, and the gas flow data and the data collected by the harmful gas detector 5 are combined for calculation, so that the content of the harmful gas in the current air can be approximately obtained.
A harmful gas detector 5 is arranged in the gas detection area 2 and used for detecting whether harmful gas exists in the air or not and qualitatively and quantitatively analyzing the harmful gas; the system is also provided with an alarm for alarming according to the detection result of the harmful gas detector 5, and comprises a wireless communication device for alarming to a ground command center, a field real-time buzzing alarm and a voice alarm for reminding constructors so as to avoid the expansion of a dangerous range; the GPS positioning device is also arranged and used for positioning the specific position where the harmful gas exists and reporting the position to the ground command center through the wireless communication device; the gas flowmeter is also provided with a singlechip which is electrically connected with the gas flowmeter 4, the harmful gas detector 5, the alarm, the wireless communication device, the GPS positioning device and the like; and the power supply device is used for providing power support for the equipment.
Example 2:
on the basis of the embodiment 1, the utility model is provided with the filter screen 6 inserting port on the side wall of the air inlet end of the gas collecting area 1, and the filter screen 6 can be installed to filter large particles in the air; wherein, the installation direction of the filter screen 6 is vertical to the gas flow direction. Set up filter screen 6 and disturb the work of fan 3, gas flowmeter 4, harmful gas detection instrument 5 with big granule thing such as avoiding dust to influence the working property of this device. In this device, filter screen 6 passes through 6 cartridge departments of filter screen direct mount in the air inlet end, can self-define filter screen 6 with the period of trading according to filter screen 6 contaminated condition promptly.
Other parts of this embodiment are the same as those of embodiment 1, and thus are not described again.
Example 3:
on the basis of any one of the embodiments 1-2, the utility model is symmetrically provided with the first positioning pieces 7 on the side walls of the two sides of the harmful gas monitoring device; still include the fixed band, the fixed band both ends set up the fastener, and its fastener can link up with 7 buckles of first locating part. This device design is original intention, is in order to solve underground works work progress, when having interim harmful gas to leak, or like the position that is difficult to ventilate such as the tunnel is lower, tunnel dead angle, when having harmful gas to accumulate, the problem that the constructor is difficult to perceive. Therefore, it is preferable to wear the device on the construction worker. After having set up first setting element 7 and the fixed band that includes the fastener, can connect this device and the arbitrary position that has second setting element 8 on one's body of constructor through the fixed band.
Other parts of this embodiment are the same as any of embodiments 1-2 described above, and thus are not described again.
Example 4:
this embodiment is a supplementary note to any one of embodiments 1 to 3 above, and the harmful gas detector 5 includes a methane detector, a nitrogen detector, a carbon monoxide detector, and a hydrogen sulfide detector. The mucky soil layer in the foundation soil of the construction site belongs to marine deposition and is a main enrichment layer of underground harmful gas, the harmful gas is mainly methane and occupies about 92 percent of the total amount of the harmful gas, and the mucky soil layer also comprises about 4 percent of nitrogen and about 3 percent of carbon monoxide. Although methane is basically nontoxic, when the methane in the air reaches 25-30%, headache, dizziness, weakness and heartbeat acceleration can be caused, and if the methane is not in time, suffocation death can be caused; skin contact with liquefied methane can cause frostbite; the methane is inflammable and can be mixed with air to form an explosive mixture with the volume fraction of 5-15.4%, and the explosive mixture can be burnt and exploded when meeting heat sources and open fire. Therefore, the indexes necessary for detecting the harmful gas include the methane content, the nitrogen content and the carbon monoxide content.
Example 5:
the utility model discloses on the basis of any one of above-mentioned embodiment 1-4, set up the special safety helmet of engineering, harmful gas monitoring devices dismantled and assembled sets up in the special safety helmet top of engineering. In embodiment 3, the general use mode of the device is that the device is worn on the body of a constructor, and preferably, the device can be arranged on the top of an engineering special safety helmet worn by the constructor, namely, the device can be displaced along with the displacement of the constructor and is arranged on the top of the head to facilitate the air to flow through the inside of the device.
The engineering special safety helmet comprises a helmet body, wherein a camera 9 and a spotlight 10 are arranged at the front end of the outer side of the helmet body, a first key 11 and a second key 12 which are used for controlling the camera 9 and the spotlight 10 to be opened and closed respectively are arranged at the brim of the outer side of the helmet body, a power supply and a controller are arranged in the helmet body, and the controller is electrically connected with the camera 9 and the spotlight 10 respectively through the first key 11 and the second key 12; the two sides of the outer side of the cap body are provided with second positioning parts 8.
The camera 9 records image information of a construction site, and a ground command center can supervise whether the behavior of constructors is in compliance or not, whether the working environment meets the requirements or not and the like in real time; meanwhile, when the site project is subjected to concealed engineering, the image and video retention is guaranteed, and the earth backfill and other operations can be carried out only after the uploaded image is approved by the supervision and engineering management and control department, so that the trace retention and traceability of engineering quality delivery are achieved. In the device, the first key 11 controls the camera 9 to work, the first key 11 is pressed for a short time to take a picture, and the first key 11 is pressed for a long time to record a video.
The spotlight 10 can be controlled to open and close by the second key 12. The underground construction process is dark, and the spotlight 10 is arranged, so that the operation of constructors is facilitated, and the camera 9 is convenient to acquire image information.
Wherein the spotlight 10 is arranged above the camera 9. The distortion of the image information collected by the camera 9 due to the spotlight 10 is avoided.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (8)
1. A construction site safety identification system comprises a harmful gas monitoring device, wherein the harmful gas monitoring device comprises a gas collection area (1) and a gas detection area (2), and is characterized in that the front end of the gas collection area (1) is provided with a gas inlet, the tail end of the gas detection area (2) is provided with a gas outlet, and harmful gas enters from the gas inlet and passes through the gas collection area (1) and the gas detection area (2) and then is discharged from the gas outlet; wherein:
the tail part of the gas collection area (1) is provided with a fan (3), and a gas flowmeter (4) is arranged beside the fan (3) and used for collecting the gas flow passing through the fan (3);
a harmful gas detector (5) is arranged in the gas detection area (2) and is used for detecting whether harmful gas and harmful gas types exist in the air; the alarm is also arranged and used for giving an alarm according to the detection result of the harmful gas detector (5), and comprises a wireless communication device for giving an alarm to a ground command center, a field real-time buzzing alarm and a voice alarm; the GPS positioning device is also arranged and used for positioning the specific position where the harmful gas exists; the gas flowmeter is also provided with a singlechip, and the singlechip is electrically connected with the gas flowmeter (4), the harmful gas detector (5), the alarm, the wireless communication device, the GPS positioning device and the like; and the power supply device is used for providing power support for the equipment.
2. The construction site safety identification system according to claim 1, wherein: the gas collection area (1) is in a bucket shape, and the inner diameter of the gas collection area is gradually reduced along with the flow direction of gas.
3. The construction site safety identification system according to claim 1, wherein: the side wall of the air inlet end of the gas collection area (1) is provided with a filter screen inserting port, and a filter screen (6) can be installed to filter large particles in the air; wherein, the installation direction of the filter screen (6) is vertical to the gas flow direction.
4. The construction site safety identification system according to claim 1, wherein: the side walls of the two sides of the harmful gas monitoring device are symmetrically provided with first positioning pieces (7); still include the fixed band, the fixed band both ends set up the fastener, and its fastener can link up with first locating part (7) buckle.
5. The construction site safety identification system according to claim 1, wherein: the harmful gas detector (5) comprises a methane detector, a nitrogen detector, a carbon monoxide detector and a hydrogen sulfide detector.
6. A job site safety identification system according to any one of claims 1 to 5, wherein: the device comprises a safety helmet special for engineering, wherein the harmful gas monitoring device is detachably arranged at the top of the safety helmet special for engineering.
7. The construction site safety identification system according to claim 6, wherein: the engineering special safety helmet comprises a helmet body, wherein a camera (9) and a spotlight (10) are arranged at the front end of the outer side of the helmet body, a first key (11) and a second key (12) which are used for respectively controlling the camera (9) and the spotlight (10) to be opened and closed are arranged at the brim of the outer side of the helmet body, a power supply and a controller are arranged inside the helmet body, and the controller is respectively and electrically connected with the camera (9) and the spotlight (10) through the first key (11) and the second key (12); and second positioning pieces (8) are arranged at two sides of the outer side of the cap body.
8. The construction site safety identification system according to claim 7, wherein: the spotlight (10) is arranged above the camera (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120824182.XU CN214703524U (en) | 2021-04-21 | 2021-04-21 | Job site safety identification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120824182.XU CN214703524U (en) | 2021-04-21 | 2021-04-21 | Job site safety identification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214703524U true CN214703524U (en) | 2021-11-12 |
Family
ID=78532787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120824182.XU Expired - Fee Related CN214703524U (en) | 2021-04-21 | 2021-04-21 | Job site safety identification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214703524U (en) |
-
2021
- 2021-04-21 CN CN202120824182.XU patent/CN214703524U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211112 |
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| CF01 | Termination of patent right due to non-payment of annual fee |