Fire-fighting and smoke-exhausting system for highway tunnel

Abstract

The utility model provides a highway tunnel fire-fighting smoke exhaust system which is used for solving the technical problem that an existing tunnel fire-fighting system is poor in smoke exhaust capacity when a fire breaks out. Comprising a plurality of sensor modules used for monitoring the temperature and smoke concentration in a tunnel, and a ventilation pipe and a track arranged in the length direction of the tunnel. The ventilation pipe is installed at the top of a tunnel, a plurality of jet fans are installed in the ventilation pipe, the track is installed at the bottom of the ventilation pipe, a plurality of air inlets are formed in the ventilation pipe at equal intervals, a smoke exhaust robot moving along the track is arranged on the track, and a telescopic smoke exhaust pipe is arranged on the smoke exhaust robot. The top end of the telescopic smoke exhaust pipe is connected with any air inlet when the telescopic smoke exhaust pipe stretches out. By arranging the smoke exhaust robot moving along the track, when a fire occurs, the telescopic smoke exhaust pipe in the smoke exhaust robot is connected with the air inlet closest to the fire, smoke is exhausted out of the tunnel through the telescopic smoke exhaust pipe, the air inlets and the ventilation pipe, the smoke exhaust effect is good, and the spreading speed and concentration of the smoke in the tunnel are reduced.

Description

Technical Field

[0001] The utility model relates to the field of tunnel fire protection, in particular to a highway tunnel fire protection smoke exhaust system. Background Art

[0002] In recent years, with the improvement of infrastructure technology, the length record of highway tunnels has been constantly refreshed. At the same time, with the increase in the number of cars, the traffic volume in the tunnel is also increasing. With the increasing traffic volume, the number of accidents in the tunnel is also increasing. When a vehicle collides with another vehicle in the tunnel, it is very easy to catch fire. Especially when a new energy vehicle collides with another vehicle in the tunnel, its power battery will catch fire and it is difficult to extinguish the fire in a short time. Therefore, the construction of the tunnel fire protection system has become one of the most important links in the tunnel construction process.

[0003] When a vehicle catches fire in a tunnel, smoke will spread rapidly, reducing visibility in the tunnel and making it difficult for other vehicles in the tunnel to pass. Drivers and passengers often choose to walk outside the tunnel to avoid danger. Inhalation of high-concentration smoke during walking will cause physical harm to the drivers and passengers and cause psychological panic. Therefore, smoke exhaust in the tunnel is crucial for both risk avoidance and rescue.

[0004] Existing tunnel fire fighting systems usually use multiple jet fans. When a fire occurs, the jet fans pump the smoke out of the tunnel. However, existing jet fans are all installed on the top of the tunnel. When a vehicle in the tunnel catches fire, the smoke will spread rapidly along the length of the tunnel. The pumping effect of the jet fans is poor, and the jet fans only guide the smoke. The smoke remains in the tunnel, causing difficulties for rescuers and drivers and passengers who are taking shelter. Utility Model Content

[0005] The purpose of the utility model is to provide a highway tunnel fire smoke exhaust system, which is used to solve the technical problem that the existing tunnel fire protection system has poor smoke exhaust capability when a fire occurs.

[0006] A highway tunnel fire smoke exhaust system includes a plurality of sensor modules for monitoring the temperature and smoke concentration in the tunnel, and ventilation pipes and tracks arranged along the length of the tunnel;

[0007] The ventilation duct is installed at the top of the tunnel, a plurality of jet fans are installed in the ventilation duct, the track is installed at the bottom of the ventilation duct, a plurality of air inlets are arranged at equal intervals on the ventilation duct, a smoke exhaust robot moving along the track is arranged, a telescopic smoke exhaust pipe is arranged on the smoke exhaust robot, and the top end of the telescopic smoke exhaust pipe is connected to any air inlet when the telescopic smoke exhaust pipe is extended.

[0008] Optionally, the air inlet includes a plurality of ventilation air inlets and a plurality of smoke exhaust air inlets, and the ventilation air inlets and the smoke exhaust air inlets are arranged in sequence according to a number of 1:N;

[0009] A first opening and closing module is arranged in the ventilation air inlet, and a second opening and closing module is arranged in the smoke exhaust air inlet.

[0010] Optionally, the first opening and closing module comprises a first opening and closing plate and a second opening and closing plate respectively rotatably mounted on two side walls of the ventilation inlet, and the rotation axis of the first opening and closing plate and the second opening and closing plate is parallel to the length direction of the ventilation pipe;

[0011] And a first electric cylinder is installed in the ventilation duct along the vertical direction, the telescopic end of the first electric cylinder is installed with a first connecting block, one end of two hinged rods are hingedly installed on the first connecting block, and the other ends of the two hinged rods are respectively hingedly installed on the first opening and closing plate and the second opening and closing plate.

[0012] Optionally, the second opening and closing module includes a third opening and closing plate and a fourth opening and closing plate respectively rotatably mounted on the two side walls of the smoke exhaust air inlet, and the rotation axis of the third opening and closing plate and the fourth opening and closing plate is parallel to the length direction of the ventilation pipe;

[0013] Torsion springs are sleeved on the rotating shafts of the third opening and closing plates and the fourth opening and closing plates, and a support plate is installed between the side walls at both ends of the smoke exhaust air inlet. When the torsion spring is in a free state, the lower end surfaces of the third opening and closing plates and the fourth opening and closing plates are placed on the support plate, and the smoke exhaust air inlet is in a closed state.

[0014] Optionally, the telescopic smoke exhaust pipe is a multi-stage rectangular telescopic pipe, and the telescopic smoke exhaust pipe includes a first rectangular sleeve fixedly mounted on the smoke exhaust robot, a plurality of second rectangular sleeves are steppedly sleeved on the outer wall of the first rectangular sleeve, and a wind collecting hood is also installed at the bottom end of the second rectangular sleeve at the bottom end;

[0015] A third rectangular sleeve is arranged inside the first rectangular sleeve and slides along its inner wall. A first limiting boss is arranged on the outer walls of the bottom ends of the first rectangular sleeve, the third rectangular sleeve and several second rectangular sleeves, and a second limiting boss is arranged on the inner walls of the top ends of the first rectangular sleeve and several second rectangular sleeves.

[0016] Optionally, the smoke exhaust robot is further provided with a driving module for driving a plurality of second rectangular sleeves to extend and retract;

[0017] The driving module includes a steel wire, a wire pulley installed on the side wall of the first rectangular sleeve, and a first motor installed in the smoke exhaust robot. A wire reel is installed on the output shaft of the first motor. One end of the steel wire is installed on the wire reel. The other end of the steel wire passes around the wire pulley and is connected to the side wall of the second rectangular sleeve at the bottom.

[0018] Optionally, a second electric cylinder for driving the third rectangular sleeve to extend and retract is also installed on the inner wall of the first rectangular sleeve;

[0019] The second electric cylinder is arranged along the vertical direction, the telescopic end of the second electric cylinder is connected to the inner wall of the third rectangular sleeve, and a push rod is installed at the top end of the third rectangular sleeve.

[0020] Optionally, a photoelectric sensor module is also installed on the outer wall of the smoke exhaust robot, and the photoelectric sensor module includes a photoelectric sensor transmitting end and a photoelectric sensor receiving end symmetrically arranged along a horizontal plane, and light shielding plates cooperating with the photoelectric sensor module are arranged on the side walls of several of the air inlets.

[0021] Optionally, cameras for collecting image data are provided on the front and rear side walls of the smoke exhaust robot.

[0022] Optionally, a plurality of the sensor modules are arranged in sequence at equal intervals along the length direction of the tunnel, and the sensor modules include a temperature sensor for collecting temperature data and a smoke sensor for collecting smoke concentration.

[0023] Due to the adoption of the above technical solution, the utility model has the following advantages:

[0024] 1. The present application sets up a smoke exhaust robot that moves along a track. When a fire occurs, the telescopic smoke exhaust pipe in the smoke exhaust robot is connected to an air inlet closest to the fire. The smoke is discharged from the tunnel through the telescopic smoke exhaust pipe, the air inlet and the ventilation pipe. The smoke exhaust effect is good, and the spread speed and concentration of smoke in the tunnel are reduced.

[0025] 2. The air inlets in the present application include several ventilation inlets and several smoke exhaust inlets. Under normal conditions, the smoke exhaust inlets are in a closed state and the ventilation inlets are in an open state, so that they meet the ventilation needs in the tunnel. When a fire occurs, the smoke exhaust inlets connected to the telescopic smoke exhaust pipe are in an open state, and the remaining smoke exhaust inlets and ventilation inlets are all in a closed state, so that the smoke exhaust inlets connected to the telescopic smoke exhaust pipe have the largest air volume and a good smoking effect.

[0026] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings of the present utility model are described as follows.

[0028] Figure 1The figure is a schematic diagram of the structure of the highway tunnel fire protection system of the utility model in the tunnel.

[0029] Figure 2 It is a partial front view of the ventilation pipe of the utility model.

[0030] Figure 3 It is a schematic diagram of the internal structure of a part of the ventilation pipe of the utility model.

[0031] Figure 4 It is a structural schematic diagram of the utility model when the ventilation inlet is opened.

[0032] Figure 5 It is a structural schematic diagram of the utility model when the smoke exhaust air inlet is closed.

[0033] Figure 6 It is a structural schematic diagram of the utility model when the smoke exhaust air inlet is pushed open.

[0034] Figure 7 It is a structural schematic diagram of the smoke exhaust robot of the utility model.

[0035] Figure 8 The figure is a schematic diagram of the internal structure of the smoke exhaust robot of the present utility model.

[0036] Fig. 9 It is a schematic structural diagram of the first rectangular sleeve of the utility model.

[0037] Fig.10 It is a schematic diagram of the structure when the second rectangular sleeve of the utility model is inserted into the smoke exhaust air inlet.

[0038] In the figure: 1-ventilation pipe; 2-track; 3-jet fan; 4-air inlet; 401-ventilation inlet; 4011-first opening and closing plate; 4012-second opening and closing plate; 4013-first electric cylinder; 4014-first connecting block; 4015-hinged rod; 402-smoke exhaust inlet; 4021-third opening and closing plate; 4022-fourth opening and closing plate; 4023-torsion spring; 4024-support plate; 5-smoke exhaust robot; 6-telescopic smoke exhaust Tube; 601-first rectangular sleeve; 602-second rectangular sleeve; 603-wind collecting cover; 604-third rectangular sleeve; 605-first limiting boss; 606-second limiting boss; 607-steel wire; 608-wire wheel; 609-first motor; 610-receiving drum; 611-second electric cylinder; 612-thrust rod; 701-photoelectric sensor transmitting end; 702-photoelectric sensor receiving end; 703-light shield; 8-camera. DETAILED DESCRIPTION

[0039] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0040] Embodiment 1:

[0041] like Figure 1 , Figure 2 and Figure 7 A road tunnel fire smoke exhaust system shown includes a plurality of sensor modules for monitoring the temperature and smoke concentration in the tunnel, and a ventilation pipe 1 and a track 2 arranged along the length direction of the tunnel;

[0042] The ventilation duct 1 is installed at the top of the tunnel, and a plurality of jet fans 3 are installed in the ventilation duct 1. The track 2 is installed at the bottom of the ventilation duct 1. A plurality of air inlets 4 are arranged at equal intervals on the ventilation duct 1. A smoke exhaust robot 5 moving along the track 2 is arranged, and a telescopic smoke exhaust pipe 6 is arranged on the smoke exhaust robot 5. When the telescopic smoke exhaust pipe 6 is extended, the top end of the telescopic smoke exhaust pipe 6 is connected to any air inlet 4.

[0043] like Figure 1 , Figure 7 and Fig.10 As shown, cameras 8 for collecting image data are arranged on the front and rear side walls of the smoke exhaust robot 5 .

[0044] In this embodiment, the system also includes a remote control center, and the sensor module communicates with the control center through the communication module. The remote control center also controls the smoke exhaust robot 5 through the control module. When the temperature or smoke concentration detected by a certain sensor module is higher than the preset threshold, it is quickly located through the number of the positioning module of the sensor module, and the smoke exhaust robot 5 is controlled to move to the positioning position. The image data of the scene is collected through the camera 8. The on-duty personnel of the control center determine the fire point through the image data, and drive the smoke exhaust robot 5 to move to the air inlet 4 closest to its downwind outlet, and drive the telescopic smoke exhaust pipe 6 to connect with the air inlet 4 to extract and exhaust air, creating good conditions for rescue and risk avoidance.

[0045] In this embodiment, a plurality of the sensor modules are arranged in sequence at equal intervals along the length direction of the tunnel, and the sensor modules include a temperature sensor for collecting temperature data and a smoke sensor for collecting smoke concentration.

[0046] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the air inlet 4 includes a plurality of ventilation air inlets 401 and a plurality of smoke exhaust air inlets 402, and the ventilation air inlets 401 and the smoke exhaust air inlets 402 are arranged in sequence according to the number of 1:N;

[0047] A first opening and closing module is disposed in the ventilation air inlet 401 , and a second opening and closing module is disposed in the smoke exhaust air inlet 402 .

[0048] In this embodiment, N is 5, the ventilation inlet 401 and the smoke exhaust inlet 402 are both arranged in the vertical direction, and in a normal state, the air volume of the ventilation inlet 401 is ensured by setting the smoke exhaust inlet 402 to a normally closed state.

[0049] In this embodiment, under normal conditions, the smoke exhaust air inlet 402 is in a closed state, and the ventilation air inlet 401 is in an open state. When a fire occurs, the air inlet (ventilation air inlet 401 or smoke exhaust air inlet 402) connected to the telescopic smoke exhaust pipe 6 is in an open state, and the other smoke exhaust air inlets 402 and ventilation air inlets 401 are all in a closed state, so that the smoke exhaust air inlet 402 connected to the telescopic smoke exhaust pipe 6 has the largest air volume, and the smoking effect is good.

[0050] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the first opening and closing module includes a first opening and closing plate 4011 and a second opening and closing plate 4012 which are rotatably mounted on the two side walls of the ventilation inlet 401, respectively, and the rotation axis of the first opening and closing plate 4011 and the second opening and closing plate 4012 is parallel to the length direction of the ventilation pipe 1;

[0051] And a first electric cylinder 4013 is installed in the ventilation duct 1 along the vertical direction, and a first connecting block 4014 is installed at the telescopic end of the first electric cylinder 4013, one end of two hinged rods 4015 are hingedly installed on the first connecting block 4014, and the other ends of the two hinged rods 4015 are hingedly installed on the first opening and closing plate 4011 and the second opening and closing plate 4012 respectively.

[0052] In this embodiment, in a normal state, the first electric cylinder 401 pushes out to open the first opening and closing plate 4011 and the second opening and closing plate 4012. When a fire occurs and the ventilation inlet 401 needs to be closed, the first electric cylinder 401 contracts to pull the first opening and closing plate 4011 and the second opening and closing plate 4012 closed.

[0053] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the second opening and closing module includes a third opening and closing plate 4021 and a fourth opening and closing plate 4022 rotatably mounted on the two side walls of the smoke exhaust air inlet 402, and the rotation axis of the third opening and closing plate 4021 and the fourth opening and closing plate 4022 is parallel to the length direction of the ventilation pipe 1;

[0054] The rotating shafts of the third opening and closing plate 4021 and the fourth opening and closing plate 4022 are both sleeved with torsion springs 4023, and a support plate 4024 is also installed between the side walls at both ends of the smoke exhaust air inlet 402. When the torsion spring 4023 is in a free state, the lower end surfaces of the third opening and closing plate 4021 and the fourth opening and closing plate 4022 are both placed on the support plate 4024, and the smoke exhaust air inlet 402 is in a closed state.

[0055] In this embodiment, one end of the torsion spring 4023 is connected to the rotating shaft of the third opening and closing plate 4021 or the fourth opening and closing plate 4022, and the other end of the torsion spring 4023 is connected to the side wall of the smoke exhaust air inlet 402. Under normal conditions, the third opening and closing plate 4021 and the fourth opening and closing plate 4022 are in a closed state.

[0056] like Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the telescopic smoke exhaust pipe 6 is a multi-stage rectangular telescopic pipe, and the telescopic smoke exhaust pipe 6 includes a first rectangular sleeve 601 fixedly mounted on the smoke exhaust robot 5, and a plurality of second rectangular sleeves 602 are steppedly sleeved on the outer wall of the first rectangular sleeve 601, and a wind collecting cover 603 is also installed at the bottom of the second rectangular sleeve 602 at the bottom end;

[0057] A third rectangular sleeve 604 is arranged inside the first rectangular sleeve 601 and slides along its inner wall. A first limiting boss 605 is arranged on the outer walls of the bottom ends of the first rectangular sleeve 601, the third rectangular sleeve 604 and the plurality of second rectangular sleeves 602. A second limiting boss 606 is arranged on the inner walls of the top ends of the first rectangular sleeve 601 and the plurality of second rectangular sleeves 602.

[0058] like Figure 7 , Figure 8 , Fig. 9 and Fig.10 As shown, the smoke exhaust robot 5 is also provided with a driving module for driving a plurality of second rectangular sleeves 602 to extend and retract;

[0059] The driving module includes a steel wire 607, a wire pulley 608 installed on the side wall of the first rectangular sleeve 601, and a first motor 609 installed in the smoke exhaust robot 5. A wire take-up drum 610 is installed on the output shaft of the first motor 609. One end of the steel wire 607 is installed on the wire take-up drum 610. The other end of the steel wire 607 passes around the wire pulley 608 and is connected to the side wall of the second rectangular sleeve 602 at the bottom.

[0060] like Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, a second electric cylinder 611 for driving the third rectangular sleeve 604 to extend and retract is also installed on the inner wall of the first rectangular sleeve 601;

[0061] The second electric cylinder 611 is arranged in the vertical direction, and the telescopic end of the second electric cylinder 611 is connected to the inner wall of the third rectangular sleeve 604 . A top rod 612 is installed at the top of the third rectangular sleeve 604 .

[0062] In this embodiment, at the initial moment, the first rectangular sleeve 601, the second rectangular sleeve 602 and the third rectangular sleeve 604 are all in a contracted state. When the smoke exhaust robot 5 moves to the bottom of the air inlet 4, the first motor 609 reverses to release the wire, and the steel wire 607 releases the wire. Under the action of gravity, the second rectangular sleeves 602 and the wind collecting cover 603 slide downward, so that the wind collecting cover 603 is close to the smoke generating plane. At the same time, the second electric cylinder 611 is pushed out, and the top end of the third rectangular sleeve 604 is inserted into the air inlet 4 to extract and exhaust the smoke.

[0063] In this embodiment, when the top end of the third rectangular sleeve 604 is connected to the smoke exhaust air inlet 402 , the push rod 612 first pushes the third opening and closing plate 4021 and the fourth opening and closing plate 4022 open by a certain angle, and then completely pushes the third rectangular sleeve 604 open through the side wall.

[0064] In this embodiment, a sidewall of the third rectangular sleeve 604 is further provided with an escape groove for escaping the hinge rod 4015 and the support plate 4024 .

[0065] like Figure 7 and Fig.10 As shown, a photoelectric sensor module is also installed on the outer wall of the smoke exhaust robot 5. The photoelectric sensor module includes a photoelectric sensor transmitting end 701 and a photoelectric sensor receiving end 702 symmetrically arranged along the horizontal plane. A light baffle 703 cooperating with the photoelectric sensor module is arranged on the side walls of several of the air inlets 4.

[0066] In this embodiment, when the third rectangular sleeve 604 is located directly below the air inlet 4, the light shield 703 blocks the light signal emitted by the photoelectric sensor transmitting end 701, and at this time, the photoelectric sensor receiving end 702 cannot receive the light signal. Whether the smoke exhaust robot 5 moves to the right position is determined by whether the photoelectric sensor receiving end 702 receives the signal.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not depart from the spirit and scope of the utility model should be included in the scope of protection of the claims of the utility model.

Claims

1. A road tunnel fire smoke exhaust system, characterized in that: It includes a plurality of sensor modules for monitoring the temperature and smoke concentration in the tunnel, and a ventilation pipe (1) and a track (2) arranged along the length of the tunnel; The ventilation pipe (1) is installed at the top of the tunnel, a plurality of jet fans (3) are installed in the ventilation pipe (1), the track (2) is installed at the bottom of the ventilation pipe (1), a plurality of air inlets (4) are arranged at equal intervals on the ventilation pipe (1), a smoke exhaust robot (5) is arranged on the track (2) to move along the track, a telescopic smoke exhaust pipe (6) is arranged on the smoke exhaust robot (5), and the top end of the telescopic smoke exhaust pipe (6) is connected to any air inlet (4) when the telescopic smoke exhaust pipe (6) is extended.

2. A road tunnel fire smoke exhaust system according to claim 1, characterized in that: The air inlet (4) comprises a plurality of ventilation air inlets (401) and a plurality of smoke exhaust air inlets (402), wherein the ventilation air inlets (401) and the smoke exhaust air inlets (402) are arranged in sequence according to a number of 1:N; A first opening and closing module is arranged in the ventilation air inlet (401), and a second opening and closing module is arranged in the smoke exhaust air inlet (402).

3. A road tunnel fire smoke exhaust system according to claim 2, characterized in that: The first opening and closing module comprises a first opening and closing plate (4011) and a second opening and closing plate (4012) which are rotatably mounted on the two side walls of the ventilation inlet (401), respectively, and the rotation axes of the first opening and closing plate (4011) and the second opening and closing plate (4012) are parallel to the length direction of the ventilation pipe (1); And a first electric cylinder (4013) is installed in the ventilation pipe (1) and is arranged in the vertical direction. The telescopic end of the first electric cylinder (4013) is installed with a first connecting block (4014). One end of two hinged rods (4015) are hingedly installed on the first connecting block (4014), and the other ends of the two hinged rods (4015) are hingedly installed on the first opening and closing plate (4011) and the second opening and closing plate (4012).

4. A road tunnel fire smoke exhaust system according to claim 2, characterized in that: The second opening and closing module comprises a third opening and closing plate (4021) and a fourth opening and closing plate (4022) which are rotatably mounted on the two side walls of the smoke exhaust air inlet (402), respectively, and the rotation axes of the third opening and closing plate (4021) and the fourth opening and closing plate (4022) are parallel to the length direction of the ventilation pipe (1); The rotating shafts of the third opening and closing plate (4021) and the fourth opening and closing plate (4022) are both sleeved with torsion springs (4023), and a support plate (4024) is also installed between the side walls at both ends of the smoke exhaust air inlet (402). When the torsion spring (4023) is in a free state, the lower end surfaces of the third opening and closing plate (4021) and the fourth opening and closing plate (4022) are both placed on the support plate (4024), and the smoke exhaust air inlet (402) is in a closed state.

5. A road tunnel fire smoke exhaust system according to claim 1, characterized in that: The telescopic smoke exhaust pipe (6) is a multi-stage rectangular telescopic pipe, and the telescopic smoke exhaust pipe (6) comprises a first rectangular sleeve (601) fixedly mounted on the smoke exhaust robot (5), a plurality of second rectangular sleeves (602) are arranged in a stepped manner on the outer wall of the first rectangular sleeve (601), and a wind collecting hood (603) is also installed at the bottom end of the second rectangular sleeve (602) at the bottom end; A third rectangular sleeve (604) is arranged inside the first rectangular sleeve (601) and slides along its inner wall. A first limiting boss (605) is arranged on the outer walls of the bottom ends of the first rectangular sleeve (601), the third rectangular sleeve (604) and a plurality of second rectangular sleeves (602). A second limiting boss (606) is arranged on the inner walls of the top ends of the first rectangular sleeve (601) and a plurality of second rectangular sleeves (602).

6. A road tunnel fire smoke exhaust system according to claim 5, characterized in that: The smoke exhaust robot (5) is also provided with a driving module for driving the plurality of second rectangular sleeves (602) to extend and retract; The driving module includes a steel wire (607), a wire pulley (608) installed on the side wall of the first rectangular sleeve (601), and a first motor (609) installed in the smoke exhaust robot (5), a wire take-up drum (610) is installed on the output shaft of the first motor (609), one end of the steel wire (607) is installed on the wire take-up drum (610), and the other end of the steel wire (607) is connected to the side wall of the second rectangular sleeve (602) at the bottom after passing around the wire pulley (608).

7. A road tunnel fire smoke exhaust system according to claim 5, characterized in that: A second electric cylinder (611) for driving the third rectangular sleeve (604) to extend and retract is also installed on the inner wall of the first rectangular sleeve (601); The second electric cylinder (611) is arranged in a vertical direction, the telescopic end of the second electric cylinder (611) is connected to the inner wall of the third rectangular sleeve (604), and a push rod (612) is installed at the top end of the third rectangular sleeve (604).

8. A road tunnel fire smoke exhaust system according to claim 1, characterized in that: A photoelectric sensor module is also installed on the outer wall of the smoke exhaust robot (5), and the photoelectric sensor module includes a photoelectric sensor transmitting end (701) and a photoelectric sensor receiving end (702) symmetrically arranged along a horizontal plane. A light shielding plate (703) cooperating with the photoelectric sensor module is arranged on the side walls of the air inlets (4).

9. A road tunnel fire smoke exhaust system according to claim 1, characterized in that: Cameras (8) for collecting image data are arranged on the front and rear side walls of the smoke exhaust robot (5).

10. A road tunnel fire smoke exhaust system according to claim 1, characterized in that: A plurality of sensor modules are arranged in sequence at equal intervals along the length direction of the tunnel, and the sensor modules include a temperature sensor for collecting temperature data and a smoke sensor for collecting smoke concentration.

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