CN219348796U - Urban tunnel harmful gas early warning device - Google Patents
Urban tunnel harmful gas early warning device Download PDFInfo
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- CN219348796U CN219348796U CN202223502198.2U CN202223502198U CN219348796U CN 219348796 U CN219348796 U CN 219348796U CN 202223502198 U CN202223502198 U CN 202223502198U CN 219348796 U CN219348796 U CN 219348796U
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- 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
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Abstract
The utility model relates to an urban tunnel harmful gas early warning device, which comprises a shell; a filter screen is detachably arranged at the air inlet; the gas cache cavity is arranged in the shell and is communicated with the gas inlet through a first gas channel; the detection end of the gas concentration detection device is positioned in the gas cache cavity; the detection end of the gas sensor is positioned in the gas cache cavity; the controller is arranged in the shell, the gas concentration detection device is in control connection with the controller, and the gas sensor is in control connection with the controller; the power supply is arranged in the shell and is electrically connected with the controller; the judging device is arranged in the shell and is in control connection with the controller; the alarm lamp is fixed at the upper end of the shell and is in control connection with the judging device; and (3) an air outlet: and the filter screen is communicated with the gas cache cavity, the gas outlet is arranged on the side surface of the shell, and the filter screen can be replaced conveniently after being used for a period of time, so that the influence of the filter screen stained with dust on the detection of harmful gas is avoided.
Description
Technical Field
The utility model belongs to the technical field of urban tunnel early warning, and particularly relates to an urban tunnel harmful gas early warning device.
Background
The early warning means that before disasters or disasters and other dangers needing to be raised, emergency signals are sent to related departments according to the rule of summary or the possibility precursor obtained by observation in the past, and dangerous situations are reported, so that the occurrence of the dangers under the condition of unknowing or insufficient preparation is avoided, and the loss caused by the dangers is reduced to the greatest extent. However, when fire disaster occurs in the urban tunnel or chemical gas leakage occurs in the urban tunnel, the vehicle runs in the urban tunnel, smoke dust or chemical gas in the tunnel is too much, and the vehicle can enter the mouth and nose of a human body in the running process of the vehicle, so that the human health is affected, and a certain danger exists in the tunnel. In the existing early warning device, in order to facilitate detection of the gas by the early warning device, a filter screen is arranged at a gas inlet of the early warning device, and dust in the air is filtered by the filter screen during normal use, so that the filter screen of the filtering mechanism is attached with more dust after long-time use, the filter screen is inconvenient to replace, the filtering effect of the filtering mechanism is affected, and when harmful gas exceeds standard, the filter screen stained with dust can block the harmful gas, so that the early warning device is affected to make accurate judgment, and the judgment effect of the early warning device is affected.
Disclosure of Invention
Therefore, the utility model aims to provide the urban tunnel harmful gas early warning device, so as to solve the technical problem that the detection result of the harmful gas is affected due to the inconvenient replacement of the filter screen of the early warning device when the filter screen is used for a long time in the prior art.
In order to achieve the purpose, the technical scheme adopted by the urban tunnel harmful gas early warning device is as follows:
urban tunnel harmful gas early warning device includes:
a housing;
and (3) an air inlet: the filter screen is detachably arranged at the air inlet;
gas buffer chamber: the gas cache cavity is communicated with the gas inlet through a first gas channel;
gas concentration detection device: the gas concentration detection device is arranged in the shell, and a detection end of the gas concentration detection device is positioned in the gas cache cavity;
gas sensor: the gas sensor is arranged in the shell, and the detection end of the gas sensor is positioned in the gas cache cavity;
and (3) a controller: the gas concentration detection device is arranged in the shell and is in control connection with the controller, and the gas sensor is in control connection with the controller;
and (3) a power supply: the power supply is electrically connected with the controller;
a judging device: the judging device is arranged in the shell and is in control connection with the controller;
alarm lamp: the alarm lamp is fixed at the upper end of the shell and is in control connection with the judging device;
and (3) an air outlet: and the air outlet is arranged on the side surface of the shell.
The beneficial effects are that: according to the urban tunnel harmful gas early warning device, gas enters the shell from the gas inlet, the gas enters the gas cache cavity along the first gas channel after entering from the gas inlet, the gas is cached and accumulated in the gas cache cavity, at the moment, the gas concentration detection device and the gas sensor arranged in the shell detect the components and the concentration of the harmful gas, the detected data are transmitted to the controller, the controller transmits the data to the judging device again, whether the concentration of the harmful gas exceeds the standard is judged in the judging device, if the harmful gas exceeds the standard, the judging device flashes as an alarm lamp, and therefore a vehicle running in the tunnel is warned. In the utility model, the filter screen is detachably arranged at the air inlet and is used for filtering dust in the air, and when the filter screen is used for a long time, the filter screen is fully stuck by the dust in the air, thereby affecting the gas entering from the air inlet and also affecting the detection of harmful gas.
Further, the filter screen comprises a frame body and a screen cloth fixed in the frame body; an opening for accommodating the filter screen is formed in the shell; the left side and the right side of the frame body are fixedly provided with mounting blocks, a mounting cavity is arranged in the mounting blocks, the frame body is provided with a mounting groove communicated with the mounting cavity, a screw rod and a clamping block which is in threaded fit with the screw rod and is in guiding fit with the mounting groove are rotatably arranged in the mounting groove, and a driving structure for driving the screw rod to rotate is arranged in the mounting cavity; the opening is provided with a clamping groove which is matched with the clamping block in a clamping way.
The beneficial effects are that: through the lead screw and the setting of the fixture block with lead screw thread adaptation, when the drive structure, the lead screw rotates, and the lead screw can drive the fixture block upwards or the downward movement to realize the joint of fixture block and draw-in groove or the fixture block withdraws from the draw-in groove, make the installation and removal of filter screen more convenient.
Further, the section shape of the mounting groove is rectangular, and the clamping block is a rectangular block matched with the screw thread of the screw rod.
The beneficial effects are that: the fixture block is set to the rectangular block, and meanwhile the section shape of the mounting groove is set to be rectangular, so that the fixture block stops rotating in the mounting groove when the fixture block moves up and down along the screw rod, and the fixture block can only move in the up-down direction.
Further, the lead screw comprises an upper thread section, a polish rod section and a lower thread section, wherein an upper clamping block is in threaded fit with the upper thread section, a lower clamping block is in threaded fit with the lower thread section, and the screwing directions of the upper thread section and the lower thread section are opposite.
The beneficial effects are that: the upper thread section and the lower thread section of the screw rod are arranged, so that the upper clamping block and the lower clamping block can be mutually close or mutually far away due to the rotation of one screw rod.
Further, the driving structure comprises a first bevel gear fixed on the polish rod section and a second bevel gear meshed with the first bevel gear, a rotating shaft of the second bevel gear extends along the front-back direction, and a knob is arranged on the rotating shaft.
The beneficial effects are that: the setting of drive structure can conveniently realize the rotation of manual operation lead screw.
The downside of filter screen is provided with the fan, the fan is connected with the controller control.
The beneficial effects are that: the air inlet can be conveniently accessed by the air through the arrangement of the fan.
And a filter device is connected between the gas cache cavity and the gas outlet, and an active carbon layer is arranged in the filter device.
The beneficial effects are that: the filter device can adsorb harmful gas when the harmful gas passes through the filter device, so that the harmful gas is prevented from continuously drifting in the air of the tunnel after passing through the early warning device.
The shell is provided with an audible alarm which is connected with the controller in a control way.
The beneficial effects are that: when the concentration of harmful gas exceeds the standard, the audible alarm can give out alarm sound, and the running vehicle is reminded by the sound.
The shell is provided with a display screen, the display screen is in control connection with the controller, a control button is further arranged below the display screen, and the control button is in control connection with the controller to control the display content of the display screen.
The beneficial effects are that: the display screen can display the concentration of the harmful gas exceeding standard when the harmful gas exceeds standard, so that the passing vehicles in the tunnel are further prompted.
Drawings
FIG. 1 is an external schematic view of an urban tunnel harmful gas warning device of the present utility model;
FIG. 2 is a schematic diagram of the internal structure of the urban tunnel harmful gas warning device in FIG. 1;
fig. 3 is a schematic structural diagram of a filter screen of the urban tunnel harmful gas warning device in fig. 1.
Reference numerals: 1-a housing; 2-a display screen; 3-a filter screen; 4-control buttons; 5-an alarm lamp; 6-an audible alarm; 7-a fan; 8-a first airway; 9-a gas buffer cavity; 10-a gas concentration detection device; 11-a gas sensor; 12-a controller; 13-judging device; 14-a power supply; 15-a filtration device; 16-an activated carbon layer; 17-an air outlet; 18-a frame; 19-mesh cloth; 20-mounting blocks; 21-a cavity; 22-upper mounting groove; 23-a lower mounting groove; 24-upper thread segments; 25-polish rod sections; 26-lower thread segments; 27-a first bevel gear; 28-a second bevel gear; 29-upper clamping blocks; 30-lower clamping block.
Detailed Description
The urban tunnel harmful gas early warning device of the utility model is further described in detail below with reference to the accompanying drawings and detailed description:
as shown in fig. 1 and 2, the urban tunnel harmful gas early warning device of the present utility model is used for detecting harmful gas, such as industrial gas, in an urban tunnel. Specifically, the early warning device comprises a cuboid-shaped shell 1, an air inlet is formed in the upper portion of the shell 1, and a filter screen 3 is detachably arranged at the air inlet. The gas buffering cavity 9 is arranged in the shell 1, the gas buffering cavity 9 is communicated with the gas inlet through the first gas channel 8, and the gas buffering cavity 9 temporarily stores and stores gas entering from the gas inlet. In order to facilitate the detection of the gas in the gas buffer cavity 9, in this embodiment, a gas concentration detection device 10 is provided in the housing 1, a detection end of the gas concentration detection device 10 is located in the gas buffer cavity 9, the gas concentration detection device 10 is used for measuring the gas concentration, a gas sensor 11 is further provided in the housing 1, a detection end of the gas sensor 11 is located in the gas buffer cavity 9, the gas sensor 11 is used for detecting the component of the harmful gas, in this embodiment, the gas concentration detection device 10 and the gas sensor 11 are all in the prior art, and specific structures thereof are not repeated herein.
A controller 12 is also arranged in the shell 1, the gas concentration detection device 10 is in control connection with the controller 12, the gas sensor 11 is in control connection with the controller 12, and the gas concentration detection device 10 and the gas sensor 11 transmit detected data to the controller 12; a power supply 14 is also provided in the housing 1, the power supply 14 being electrically connected to the controller 12 such that the power supply 14 supplies power to the controller 12. The casing 1 is further provided with a judging device 13, the judging device 13 is in control connection with the controller 12, the controller 12 transmits detected data to the judging device 13 through the gas concentration detecting device 10 and the gas sensor 11, and the judging device 13 judges whether the detected components and concentrations of the toxic gas exceed the standard according to the detected data of the gas concentration detecting device 10 and the gas sensor 11, in this embodiment, the structure and principle of the judging device 13 are the prior art, and are not described herein. An alarm lamp 5 is fixedly arranged at the upper end of the shell 1, the alarm lamp 5 is in control connection with a judging device 13, and when the judging device 13 judges that the concentration of harmful gas exceeds the standard, the judging device 13 controls the alarm lamp 5 to flash to remind a vehicle passing through a tunnel. An air outlet 17 is further disposed on one side of the housing 1, and in this embodiment, the air outlet 17 is disposed in communication with the air buffer chamber 9, so as to exhaust the air in the air buffer chamber 9 out of the early warning device.
In order to facilitate assembly and disassembly of the filter screen 3, in this embodiment, an opening for accommodating the filter screen 3 is provided on the housing 1, the opening is rectangular, and clamping grooves are provided on the upper and lower sides of the opening, in this embodiment, four clamping grooves are provided, two of the clamping grooves are located on the upper portion of the opening, and the other two clamping grooves are located on the lower portion of the opening, that is, the clamping grooves are provided on the opening near four corners. As shown in fig. 3, the filter screen 3 comprises a rectangular frame 18 and a screen cloth 19 fixed in the frame 18, wherein mounting blocks 20 are fixed on the left side and the right side of the frame 18, a mounting cavity is arranged in the mounting blocks 20, the frame 18 is provided with a mounting groove communicated with the mounting cavity, the mounting groove comprises an upper mounting groove 22 and a lower mounting groove 23, the upper mounting groove 22 is communicated with the mounting cavity, and the lower mounting groove 23 is communicated with the mounting cavity; the screw rod and the fixture block which is matched with the screw thread of the screw rod in a guiding way are rotationally arranged in the mounting groove, and a driving structure for driving the screw rod to rotate is further arranged in the mounting cavity. Specifically, the screw rod comprises an upper thread section 24, a polished rod section 25 and a lower thread section 26, wherein an upper clamping block 29 is in threaded fit with the upper thread section 24, a lower clamping block 30 is in threaded fit with the lower thread section 26, and the screwing directions of the upper thread section 24 and the lower thread section 26 are opposite; specifically, the upper thread section 24 is located in the upper mounting groove 22, the lower thread section 26 is located in the lower mounting groove 23, the polish rod section 25 is located in the mounting cavity, in this embodiment, the mounting cavity comprises an inserting section for the polish rod section 25 to pass through, the inserting section comprises an upper inserting section and a lower inserting section, the mounting cavity further comprises a cavity 21 communicated with the upper inserting section and the lower inserting section, the upper inserting section is communicated with the upper mounting groove 22, and the lower inserting section is communicated with the lower mounting groove 23.
The driving structure comprises a first bevel gear 27 fixed on the polish rod section 25 and a second bevel gear 28 meshed with the first bevel gear 27, wherein a rotating shaft of the second bevel gear 28 extends along the front-back direction and extends out of the front side of the shell 1, and a knob is arranged on the rotating shaft so as to conveniently drive the second bevel gear 28 through rotating the knob, so that the second bevel gear 28 drives the first bevel gear 27 to rotate. In this embodiment, the first bevel gear 27 and the second bevel gear 28 are located in the cavity 21, and the knob is located on the upper surface of the early warning device.
In order to promote the gas in the tunnel to enter the early warning device, in the embodiment, the fan 7 is arranged at the lower side of the filter screen 3, the fan 7 is in control connection with the controller 12, the fan 7 rotates, and the gas in the tunnel can be smoothly sucked into the air inlet.
In order to filter the gas entering the early warning device, in this embodiment, a filter device 15 is connected between the gas buffer chamber 9 and the gas outlet 17, an activated carbon layer 16 is disposed in the filter device 15, and the activated carbon layer 16 adsorbs toxic gas.
The shell 1 is also provided with an audible alarm 6, the audible alarm 6 is connected with a controller 12, and when the gas concentration detection device 10 and the gas sensor 11 detect that the toxic gas concentration exceeds the standard, the controller 12 controls the audible alarm 6 to sound, and the audible alarm 6 and the alarm lamp 5 cooperate to remind a vehicle running in a tunnel together.
The shell 1 is also provided with a display screen 2, the display screen 2 is in control connection with the controller 12, and the display can display the components and the concentration of the toxic gas, display the standard value of the toxic gas and display whether the concentration of the toxic gas exceeds the standard currently. The control button 4 is further arranged below the display screen 2, the control button 4 is in control connection with the controller 12 to control the display content of the display screen 2, and the display screen 2 can display the exceeding of the concentration of the harmful gas when the harmful gas exceeds the standard, so that the passing vehicles in the tunnel are further prompted.
When the filter screen 3 is used for a period of time and is full of dust and needs to be replaced, the knob is screwed, the knob drives the second bevel gear 28 to rotate, the second bevel gear 28 drives the first bevel gear 27 to rotate, the first bevel gear 27 drives the screw rod to rotate, the upper threaded section 24 of the screw rod is in threaded fit with the upper clamping block 29, the lower threaded section 26 of the screw rod is in threaded fit with the lower clamping block 30, so that the upper clamping block 29 is separated from the upper clamping groove, the lower clamping block 30 is separated from the lower clamping groove, the filter screen 3 full of dust is detached from the opening, then a new filter screen 3 is placed at the opening, the knob is screwed again, the screw rod is rotated again, the upper clamping block 29 is moved upwards and is inserted into the upper clamping groove, the lower clamping block 30 is moved downwards and is inserted into the lower clamping groove, and accordingly the filter screen 3 is stably clamped at the opening, and the new filter screen 3 is installed at the opening.
In the above embodiment, the cross section of the mounting groove is rectangular, and the clamping block is a rectangular block adapted to the screw thread of the screw rod; in other embodiments, the cross-sectional shape of the mounting groove may be circular, and the fixture block is a cylindrical block adapted to the mounting groove, and a guide groove is provided on one side of the mounting groove, and the fixture block is provided with a guide block adapted to the guide groove.
In the above embodiment, the screw rod includes an upper thread section, a polish rod section and a lower thread section, the thread of the upper thread section is adapted with an upper fixture block, the thread of the lower thread section is adapted with a lower fixture block, and the directions of the threads of the upper thread section and the lower thread section are opposite; in other embodiments, the screw rod comprises an upper screw rod and a lower screw rod, a first bevel gear is fixedly arranged at the lower end of the upper screw rod, a second bevel gear is fixedly arranged at the upper end of the lower screw rod, a third bevel gear is arranged in the cavity of the installation cavity, and the third bevel gear is respectively meshed with the first bevel gear and the second bevel gear for transmission, so that the upper screw rod and the lower screw rod are simultaneously rotated through rotation of the third bevel gear.
In the above embodiment, a fan is arranged at the lower side of the filter screen, and the fan is in control connection with the controller; in other embodiments, the blower may not be provided, and air in the tunnel automatically enters the air inlet.
In the above embodiment, a filter device is connected between the gas buffer cavity and the gas outlet, and an activated carbon layer is arranged in the filter device; in other embodiments, the filter device may not be provided.
In the above embodiment, the casing is provided with an acoustic alarm, and the acoustic alarm is in control connection with the controller; in other embodiments, the audible alarm may not be provided.
Claims (9)
1. Urban tunnel harmful gas early warning device, characterized by includes:
a housing;
and (3) an air inlet: the filter screen is detachably arranged at the air inlet;
gas buffer chamber: the gas cache cavity is communicated with the gas inlet through a first gas channel;
gas concentration detection device: the gas concentration detection device is arranged in the shell, and a detection end of the gas concentration detection device is positioned in the gas cache cavity;
gas sensor: the gas sensor is arranged in the shell, and the detection end of the gas sensor is positioned in the gas cache cavity;
and (3) a controller: the gas concentration detection device is arranged in the shell and is in control connection with the controller, and the gas sensor is in control connection with the controller;
and (3) a power supply: the power supply is electrically connected with the controller;
a judging device: the judging device is arranged in the shell and is in control connection with the controller;
alarm lamp: the alarm lamp is fixed at the upper end of the shell and is in control connection with the judging device;
and (3) an air outlet: and the air outlet is arranged on the side surface of the shell.
2. The urban tunnel harmful gas warning device according to claim 1, wherein the filter screen comprises a frame body and a mesh cloth fixed in the frame body; an opening for accommodating the filter screen is formed in the shell; the left side and the right side of the frame body are fixedly provided with mounting blocks, a mounting cavity is arranged in the mounting blocks, the frame body is provided with a mounting groove communicated with the mounting cavity, a screw rod and a clamping block which is in threaded fit with the screw rod and is in guiding fit with the mounting groove are rotatably arranged in the mounting groove, and a driving structure for driving the screw rod to rotate is arranged in the mounting cavity; the opening is provided with a clamping groove which is matched with the clamping block in a clamping way.
3. The urban tunnel harmful gas early warning device according to claim 2, wherein the cross section of the installation groove is rectangular, and the clamping block is a rectangular block matched with the screw thread.
4. The urban tunnel harmful gas warning device according to claim 3, wherein the screw rod comprises an upper thread section, a polish rod section and a lower thread section, the upper thread section is in threaded fit with an upper clamping block, the lower thread section is in threaded fit with a lower clamping block, and the upper thread section and the lower thread section are in opposite directions.
5. The urban tunnel harmful gas warning device according to claim 4, wherein the driving structure comprises a first bevel gear fixed on the polish rod section and a second bevel gear meshed with the first bevel gear, a rotating shaft of the second bevel gear extends along the front-rear direction, and a knob is mounted on the rotating shaft.
6. The urban tunnel harmful gas warning device according to any one of claims 1 to 5, wherein a fan is provided on the underside of the filter screen, and the fan is in control connection with a controller.
7. The urban tunnel harmful gas early warning device according to any one of claims 1 to 5, wherein a filter device is connected between the gas buffer cavity and the gas outlet, and an activated carbon layer is arranged in the filter device.
8. The urban tunnel harmful gas warning device according to any one of claims 1 to 5, wherein the housing is provided with an audible alarm in control connection with a controller.
9. The urban tunnel harmful gas warning device according to any one of claims 1 to 5, wherein a display screen is provided on the housing, the display screen is in control connection with the controller, and a control button is further provided below the display screen, and the control button is in control connection with the controller to control the display content of the display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223502198.2U CN219348796U (en) | 2022-12-28 | 2022-12-28 | Urban tunnel harmful gas early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223502198.2U CN219348796U (en) | 2022-12-28 | 2022-12-28 | Urban tunnel harmful gas early warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219348796U true CN219348796U (en) | 2023-07-14 |
Family
ID=87076610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223502198.2U Active CN219348796U (en) | 2022-12-28 | 2022-12-28 | Urban tunnel harmful gas early warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219348796U (en) |
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2022
- 2022-12-28 CN CN202223502198.2U patent/CN219348796U/en active Active
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