CN115773147A

CN115773147A - Ventilation unit for tunnel

Info

Publication number: CN115773147A
Application number: CN202211556445.9A
Authority: CN
Inventors: 沈燕杰; 陈利明
Original assignee: Jiayue Huzhou Building Materials Co ltd
Current assignee: Jiayue Huzhou Building Materials Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-03-10

Abstract

The invention discloses a ventilation device for a tunnel, which comprises a transverse ventilation module, wherein the end part of the transverse ventilation module is provided with an air inlet duct and an air outlet duct, the side wall of the air inlet duct is provided with an installation groove, the side wall of the air outlet duct is provided with an air inlet groove, a ventilator is arranged in the installation groove, an anti-backflow assembly is arranged in the air inlet duct, the inner wall of the air inlet duct is fixed with a conveying block, the inner wall of the air outlet duct is fixed with a filter plate, the inner bottom of the air outlet duct is provided with a sewage discharge groove, and the sewage discharge groove and the filter plate are provided with a pumping cavity and a storage cavity corresponding to the inner wall of the conveying block. Has the advantages that: utilize the cylindricality pole to promote the slip of arc ejector pad along the arc wall is inside, can open the size according to preventing against the current subassembly, realize the adjustment to stretching out piece extension length, and then can realize the control to the shower nozzle water spray volume, realize the clearance to dust in the air under the extravagant prerequisite of reduction water source, can make tunnel ventilation effect more.

Description

Ventilation unit for tunnel

Technical Field

The invention relates to the technical field of tunnel ventilation, in particular to a ventilation device for a tunnel.

Background

Tunnels are engineering structures buried in the ground and are a form of human use of underground space. The tunnel can be divided into a traffic tunnel, a hydraulic tunnel, a municipal tunnel, a mine tunnel and the like, ventilation is an indispensable technical link in tunnel construction, and under the condition of mechanized operation, ventilation equipment can supply fresh air, remove dust and various toxic and harmful gases to a construction site in the tunnel, create a good working environment, ensure the health and safety of constructors, and simultaneously, ventilation is also a necessary condition for maintaining the normal operation of electromechanical equipment in the tunnel;

in the tunnel work progress, there are more dust in the tunnel, directly utilize the dust screen to intercept the dust in the inside and outside ventilation process in the tunnel, the dust can be attached to the surface of dust screen and the mesh that blocks up the dust screen after using for a long time, make colliery operation ventilation unit's ventilation effect worsen gradually, and most ventilation unit directly accesss to these gases outside through handling, thereby cause the pollution to a certain extent to subaerial air, the environmental protection of being not convenient for is used, therefore we need design a section of ventilation unit for the tunnel of taking dust processing function.

Disclosure of Invention

The invention aims to solve the problem that dust is inconvenient to treat during tunnel ventilation in the prior art, and provides a ventilation device for a tunnel.

In order to achieve the purpose, the invention adopts the following technical scheme:

a ventilation device for a tunnel comprises a transverse ventilation module, wherein an air inlet duct and an air outlet duct are arranged at the end part of the transverse ventilation module, a mounting groove is formed in the side wall of the air inlet duct, an air inlet groove is formed in the side wall of the air outlet duct, a ventilator is arranged in the mounting groove, an anti-backflow assembly is arranged in the air inlet duct, a conveying block is fixed on the inner wall of the air inlet duct, a filter plate is fixed on the inner wall of the air outlet duct, a sewage discharge groove is formed in the inner bottom part of the air outlet duct, and the sewage discharge groove corresponds to the filter plate;

carry the inner wall of piece to have seted up pump sending chamber and storage chamber, the interior top of air inlet duct inlays and is equipped with the storage water tank, the interior bottom of storage water tank passes through connecting pipe and pump sending intracavity portion intercommunication, the interior bottom in pump sending chamber is provided with a plurality of shower nozzles, the interior bottom of carrying the piece is through a plurality of collecting tanks and storage intracavity portion intercommunication, the inner wall of carrying the piece is fixed with the breakwater that two symmetries set up, the inner wall of storing the chamber passes through top intercommunication in cooling tube and the exhaust airway, the inside of exhaust airway is provided with dust cleaning device, the inside of carrying the piece is provided with rivers pump sending device.

In foretell ventilation unit for tunnel, dust cleaning device includes the bull stick of being connected through the bearing rotation with the exhaust duct inner wall, the circumference lateral wall of bull stick is fixed with a plurality of impellers, the impeller corresponds with the air inlet duct, the both sides inner wall of exhaust duct all is connected with the driven lever through the bearing rotation, the driven lever passes through the belt with the bull stick and is connected.

In the above-mentioned ventilation device for a tunnel, the circumferential side walls of the two driven rods are both fixed with a cylindrical block, the circumferential side walls of the cylindrical blocks are fixed with lugs, and the lugs correspond to the filter plates.

In foretell ventilation unit for tunnel, rivers pumping installations includes and carries the piece to rotate two vertical poles of being connected, two the circumference lateral wall of vertical pole all is fixed with the eccentric block, one of them the eccentric block is located pumping intracavity portion, the inside of eccentric block is provided with adjusting device, the other one the eccentric block is located stores intracavity portion, pumping chamber and the inner wall of storing the chamber all sealing sliding connection have the closing plate, two the lateral wall of closing plate all corresponds fixedly with pumping chamber and storing intracavity wall through a plurality of reset spring, two the bottom of vertical pole all is fixed with horizontal bevel gear, the circumference lateral wall of bull stick is fixed with two vertical bevel gears, two vertical bevel gear corresponds the meshing with two horizontal bevel gears.

In the above-mentioned ventilation unit for tunnel, adjusting device is including seting up the regulation chamber in the eccentric block, the inner wall sliding connection in regulation chamber has the iron board, the one end of iron board is fixed with regulation intracavity wall through connecting spring, the other end of iron board is fixed with stretches out the piece, the inner wall in regulation chamber is fixed with inhales the piece, it is the electro-magnet to inhale the piece, it corresponds with the iron board to inhale the piece.

In foretell ventilation unit for tunnel, prevent subassembly against current including being fixed in the dead lever of carrying the piece inner wall, the circumference lateral wall cover of dead lever is equipped with two lagging, two the lateral wall of lagging all is fixed with the mounting panel, two the lagging and the sealed counterbalance of two mounting panels and carrying the piece inner wall, two the arc wall has all been seted up to the lateral wall of lagging, two the lateral wall of lagging all is fixed with the cylindricality pole, two arc wall and two cylindricality pole one-to-one, two the equal sliding connection of inner wall of arc wall has the arc ejector pad, the lateral wall of arc ejector pad passes through arc spring and arc wall fixed, one of them the inside of arc wall is provided with the piece of inserting, one of them the lateral wall of arc ejector pad inlays and is equipped with the contact block, the contact block is connected with the piece of inserting, arc ejector pad and lagging are the insulation board.

Compared with the prior art, the invention has the advantages that:

1: according to the invention, the rotation of the rotating rod is realized when air in the exhaust duct is quickly exhausted, and the rotation of the vertical rod and the driven rod can be realized, so that the pumping of water flow in the conveying block and the continuous cleaning of dust on the filter plate by the cylindrical block can be realized, the cleanness of introduced air can be ensured, and the continuous filtering of exhausted air by the filter plate can be realized, thereby effectively ensuring the safety of the surrounding environment.

2: according to the invention, the cylindrical rod is used for pushing the arc push block to slide along the inner part of the arc groove, the extension length of the extension block can be adjusted according to the opening size of the anti-reflux component, the water spraying amount of the spray head can be controlled, the dust in the air can be cleaned on the premise of reducing water source waste, and the tunnel ventilation effect is better.

3: according to the invention, the cooling pipe can guide water flow to the position of the filter plate to clean dust in the discharged air, and the cooling pipe surrounding the motor part of the ventilator is utilized, so that heat can be absorbed in the running process of the ventilator by utilizing water flow, the continuous and safe use of the ventilator is ensured, and the service life of the ventilator can be effectively prolonged.

Drawings

Fig. 1 is a schematic structural view of a tunnel ventilation apparatus according to the present invention;

fig. 2 is a schematic structural view of a water flow pumping device part in a tunnel ventilation device provided by the invention;

FIG. 3 is an enlarged view of an exhaust duct portion of a ventilating device for a tunnel according to the present invention;

fig. 4 is a top sectional view of an exhaust duct portion in a ventilation apparatus for a tunnel according to the present invention;

fig. 5 is a sectional view of a reverse flow preventing assembly part in a ventilation apparatus for a tunnel according to the present invention;

fig. 6 is a sectional view of a portion of an adjusting device in a ventilation device for a tunnel according to the present invention;

fig. 7 is a side sectional view of a reverse flow preventing assembly part in a ventilation apparatus for a tunnel according to the present invention;

fig. 8 is a schematic structural view of an arc-shaped groove part in a ventilation apparatus for a tunnel according to the present invention.

In the figure: the device comprises a transverse ventilation module 1, an air inlet channel 2, a mounting channel 3, a ventilator 4, an anti-backflow component 5, a conveying block 6, an exhaust channel 7, an air inlet channel 8, a filter plate 9, a sewage draining channel 10, a pumping cavity 11, a storage cavity 12, a water storage tank 13, a connecting pipe 14, a nozzle 15, a collecting tank 16, a water baffle 17, a cooling pipe 18, a rotating rod 19, an impeller 20, a driven rod 21, a cylindrical block 22, a convex block 23, a belt 24, a vertical bevel gear 25, a vertical rod 26, a horizontal bevel gear 27, an eccentric block 28, a sealing plate 29, a return spring 30, an adjusting cavity 31, an iron plate 32, a connecting spring 33, a protruding block 34, a suction block 35, a fixed rod 36, a sleeve plate 37, a mounting plate 38, an arc-shaped groove 39, a cylindrical rod 40, an arc-shaped pushing block 41, an arc-shaped spring 42, an arc-shaped spring 43 access block, a contact block 44 and a horizontal blocking strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-8, a ventilation device for a tunnel, comprising a transverse ventilation module 1, wherein an air inlet duct 2 and an air outlet duct 7 are arranged at the end of the transverse ventilation module 1, an installation groove 3 is arranged on the side wall of the air inlet duct 2, an air inlet duct 8 is arranged on the side wall of the air outlet duct 7, the area of the connection port between the air inlet duct 8 and the air outlet duct 7 is small, so that air in the tunnel can rapidly flow into the air outlet duct 7 along the air inlet duct 8 when being discharged, a ventilator 4 is arranged in the installation groove 3, for the prior art in the technical field, which is not illustrated, an anti-reverse flow component 5 is arranged in the air inlet duct 2, two horizontal barrier strips 45 in the air inlet duct 2 are utilized, the sleeve plate 37 and the mounting plate 38 in the anti-reflux component 5 can be blocked, the reverse opening of the air inlet duct 2 can be avoided, and dust in a tunnel can be prevented from entering the air inlet duct 2, so that the cleanness of the interior of the air inlet duct 2 can be ensured, the air is convenient to pump and use, the conveying block 6 is fixed on the inner wall of the air inlet duct 2, the filter plate 9 is fixed on the inner wall of the exhaust duct 7, the inner bottom of the exhaust duct 7 is provided with the sewage discharge groove 10, the end part of the sewage discharge groove 10 can be sealed, the sewage discharge groove 10 can store sewage and dust, the sewage discharge can be realized by regularly opening, and the sewage discharge groove 10 corresponds to the filter plate 9; carry the inner wall of piece 6 to have seted up pumping chamber 11 and storage chamber 12, the interior top of intake stack 2 inlays and is equipped with storage water tank 13, connecting pipe 14 and the inside intercommunication in pumping chamber 11 are passed through to the interior bottom of storage water tank 13, the interior bottom in pumping chamber 11 is provided with a plurality of shower nozzles 15, the interior bottom of carrying piece 6 is through a plurality of collecting tanks 16 and the inside intercommunication in storage chamber 12, the inner wall of carrying piece 6 is fixed with the breakwater 17 that two symmetries set up, the inner wall of storage chamber 12 passes through cooling tube 18 and the interior top intercommunication of exhaust duct 7, the inside of exhaust duct 7 is provided with dust cleaning device, the inside of carrying piece 6 is provided with rivers pumping device, connecting pipe 14, collecting tank 16 and cooling tube 18 are inside all to be provided with the check valve, the inside check valve conduction state of connecting pipe 14 is inside storage water tank 13 to pumping chamber 11, the conduction state of the inside check valve of collecting tank 16 is inside to carrying piece 6 inside to storage chamber 12, the conduction state of the inside check valve of cooling tube 18 is inside to be inside to storage chamber 12 to be inside to cooling tube 18.

The dust cleaning device comprises a rotating rod 19 which is rotatably connected with the inner wall of the exhaust duct 7 through a bearing, a plurality of impellers 20 are fixed on the circumferential side wall of the rotating rod 19, the impellers 20 correspond to the air inlet groove 8, driven rods 21 are rotatably connected with the inner walls of the two sides of the exhaust duct 7 through bearings, and the driven rods 21 are connected with the rotating rod 19 through a belt 24; the circumference lateral wall of two driven levers 21 all is fixed with cylindricality piece 22, the circumference lateral wall of cylindricality piece 22 is fixed with lug 23, lug 23 corresponds with filter plate 9, utilize in the tunnel along the air current of air inlet duct 8 rapid inflow to exhaust duct 7, can realize the continuous rotation of a plurality of impellers 20, and then can drive under belt 24, realize the clearance striking of a plurality of lugs 23 of cylindricality piece 22 tip to filter plate 9, thereby can realize the clearance to dust impurity on the filter plate 9, can guarantee the permeability of filter plate 9 when being convenient for the collection of dust, make filter plate 9 better to the air filter effect.

The water flow pumping device comprises two vertical rods 26 rotatably connected with a conveying block 6, eccentric blocks 28 are fixed on circumferential side walls of the two vertical rods 26, one eccentric block 28 is located inside a pumping cavity 11, an adjusting device is arranged inside the eccentric block 28, the other eccentric block 28 is located inside a storage cavity 12, sealing plates 29 are connected on inner walls of the pumping cavity 11 and the storage cavity 12 in a sealing and sliding mode, side walls of the two sealing plates 29 are correspondingly fixed on inner walls of the pumping cavity 11 and the storage cavity 12 through a plurality of reset springs 30, horizontal bevel gears 27 are fixed at bottoms of the two vertical rods 26, two vertical bevel gears 25 are fixed on circumferential side walls of a rotating rod 19, the two vertical bevel gears 25 are correspondingly meshed with the two horizontal bevel gears 27, the vertical bevel gears 25 and the horizontal bevel gears 27 which are meshed with each other are utilized, rotation of the vertical rods 26 can be realized in the rotating process of the rotating rod 19, reciprocating movement of the sealing plates 29 inside the pumping cavity 11 and the storage cavity 12 can be realized, further, spraying of water flow along a spray head 15 can be realized, dust in the air can be removed, cleanness of the air can be ensured, the sealing plates 12 can be moved, the sealing plates 18 can be used for realizing effective cooling of a water flow fan, and a temperature-reducing fan can be realized, the temperature-sensing ventilator can be realized, the temperature-reducing fan 4 can be realized, and the temperature-adjustable water ventilator can be realized.

The adjusting device comprises an adjusting cavity 31 arranged in the eccentric block 28, the inner wall of the adjusting cavity 31 is connected with an iron plate 32 in a sliding mode, one end of the iron plate 32 is fixed to the inner wall of the adjusting cavity 31 through a connecting spring 33, the other end of the iron plate 32 is fixed with an extending block 34, the inner wall of the adjusting cavity 31 is fixed with an absorbing block 35, the absorbing block 35 is an electromagnet, the absorbing block 35 is strong in magnetism, the connecting spring 33 is in a compression state initially, the stiffness coefficient is large, and the absorbing block 35 corresponds to the iron plate 32; the countercurrent-preventing component 5 comprises a fixed rod 36 fixed on the inner wall of the conveying block 6, two sleeve plates 37 are sleeved on the circumferential side wall of the fixed rod 36, mounting plates 38 are fixed on the side walls of the two sleeve plates 37, the two sleeve plates 37 and the two mounting plates 38 are in sealing contact with the inner wall of the conveying block 6, arc-shaped grooves 39 are formed in the side walls of the two sleeve plates 37, cylindrical rods 40 are fixed on the side walls of the two sleeve plates 37, the two arc-shaped grooves 39 correspond to the two cylindrical rods 40 one by one, arc-shaped push blocks 41 are connected on the inner walls of the two arc-shaped grooves 39 in a sliding manner, the side walls of the arc-shaped push blocks 41 are fixed on the inner walls of the arc-shaped grooves 39 through arc-shaped springs 42, an access block 43 is arranged inside one arc-shaped groove 39, a contact block 44 is embedded in the side wall of one arc-shaped push block 41, the contact block 44 and the access block 43 are connected with the suction block 35, and the arc-shaped push blocks 41 and the sleeve plates 37 are insulating plates, two horizontal barrier strips 45 are fixed on the inner wall of the air inlet duct 2 and respectively correspond to the two sleeve plates 37 and the mounting plate 38, the horizontal barrier strips 45 can be used for blocking the sleeve plates 37 and the mounting plate 38, so that the phenomenon that air in a tunnel enters the air inlet duct 2 to cause pollution can be avoided, when the opening range of the anti-countercurrent component 5 is large due to large air volume, the increase of the access resistance of the access block 43 can be realized, the energizing current of the access block 35 can be reduced, the extension block 34 can be moved outwards under the action of the connecting spring 33 in a compressed state, and more water flow can be sprayed out along the spray head 15, so that the dust in the air inlet duct 2 and the dust in the exhaust duct 7 can be better treated, meanwhile, the water flow in the cooling pipe 18 can be accelerated, the heat dissipation effect of the ventilator 4 is better, and the ventilation of the tunnel can be conveniently used.

In the invention, in the ventilation process of the tunnel, by starting the ventilator 4, under the operation of the ventilator 4, the external air can enter the air inlet duct 2 along the mounting groove 3, because the conveying block 6 is arranged in the air inlet duct 2, the internal space of the air inlet duct 2 can be reduced, so that the external air can be conveniently and rapidly conveyed along the inside of the air inlet duct 2 in a long distance, in the process of conveying the air flow along the inside of the conveying block 6, the upper sleeve plate 37 and the mounting plate 38 of the fixing rod 36 can be pushed to rotate, so that the upper sleeve plate 37 and the lower sleeve plate 37 and the mounting plate 38 are simultaneously deviated towards the left side, the opening of the air inlet duct 2 is realized, at the moment, the air flow can flow into the tunnel along the gap between the countercurrent-preventing component 5 and the air inlet duct 2, the air supply inside the tunnel is realized, in the continuous process of the air inlet duct 2, the air inside the tunnel is gradually increased, so that the air inside the tunnel flows into the air inlet duct 7, the air in the tunnel is exhausted through the air exhaust duct 7, and the circulating flow of the air inside and outside the tunnel can be realized;

the filter plate 9 is arranged in the exhaust duct 7, so that the exhaust air can be filtered, impurities such as dust and the like in the tunnel are separated from the air flow, the cleanness of the exhaust air can be ensured, the pollution to the external environment can be reduced, the air flow can rapidly enter the exhaust duct 7 along the air inlet groove 8 by utilizing the air inlet groove 8 with a smaller connecting part with the exhaust duct 7, so that the impellers 20 on the rotary rod 19 can be pushed to continuously rotate, the two driven rods 21 can simultaneously rotate under the driving of the belt 24 on the rotary rod 19, and at the moment, the gap impact on the end part of the filter plate 9 can be realized by utilizing the plurality of lugs 23 on the end part of the cylindrical block 22, so that the dust on the filter plate 9 can be shaken off, the permeability of the filter plate 9 can be ensured, and the continuous filtering and use of the air are facilitated;

meanwhile, under the driving of the horizontal bevel gear 27 and the vertical bevel gear 25 which are in a meshed state, the two vertical rods 26 can rotate simultaneously, so that the sealing plate 29 can continuously reciprocate along the insides of the pumping cavity 11 and the storage cavity 12 by utilizing the pushing of the eccentric block 28 and the resetting effect of the resetting spring 30, and in the reciprocating movement process of the sealing plate 29 inside the pumping cavity 11, the water flow inside the pumping cavity 11 can be extruded, so that the water flow can be sprayed out along the spray head 15, impurities in the air flowing along the conveying block 6 can be removed, the cleanness of the introduced air can be ensured, and the ventilation and the use in a tunnel are facilitated;

the water flow sprayed by the spray head 15 and dust and impurities in the air can be blocked by the two water baffles 17 at the bottom in the conveying block 6, meanwhile, in the reciprocating movement process of the sealing plate 29 in the storage cavity 12, the water flow in the conveying block 6 can be extracted, the water flow is pumped to a discharged air filtering position along the cooling pipe 18, the dust in the discharged air can be adsorbed again by the water flow, so that the dust is convenient to collect, treat and use, the cooling pipe 18 can surround the running motor part of the ventilator 4, the heat in the running process of the ventilator 4 can be absorbed by the water flow, the continuous safe use of the ventilator 4 is ensured, and the service life of the ventilator 4 can be effectively prolonged;

and in the process that the sleeve plate 37 rotates along the fixed rod 36 in the anti-reflux assembly 5, the cylindrical rod 40 can slide along the inside of the arc-shaped groove 39, so that the arc-shaped push block 41 can be pushed to slide along the inside of the arc-shaped groove 39, and the compression of the arc-shaped spring 42 can be realized at the same time, in the process that the arc-shaped push block 41 slides along the inside of the arc-shaped groove 39, the sliding of the contact block 44 on the arc-shaped push block 41 along the access block 43 can be realized, so that the adjustment of the access resistance of the access block 43 in the power-on line of the access block 35 can be realized, when the opening range of the anti-reflux assembly 5 is large due to large air volume, the sliding distance of the contact block 44 along the access block 43 can be realized, the increase of the access resistance of the access block 43 can be realized, at the moment, the size of the power-on current of the access block 35 can be realized to be small, further, the extension block 34 can move to the outside under the action of the connection spring 33, further the adjustment of the extension block 34 can be realized, so that the extension length of the extension block 34 can be adjusted, thereby, in the rotation process of the sealing plate 29 in the vertical rod 26, the air inlet duct 2 and the air duct can be realized, thereby the better cooling water flow can be more, the cooling effect of the ventilation duct can be accelerated, and the better use of the ventilator can be realized, and the better effect can be realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The tunnel ventilation device comprises a transverse ventilation module (1) and is characterized in that an air inlet duct (2) and an air outlet duct (7) are arranged at the end part of the transverse ventilation module (1), an installation groove (3) is formed in the side wall of the air inlet duct (2), an air inlet groove (8) is formed in the side wall of the air outlet duct (7), a ventilator (4) is arranged in the installation groove (3), an anti-backflow component (5) is arranged in the air inlet duct (2), a conveying block (6) is fixed on the inner wall of the air inlet duct (2), a filter plate (9) is fixed on the inner wall of the air outlet duct (7), a sewage discharge groove (10) is formed in the inner bottom of the air outlet duct (7), and the sewage discharge groove (10) corresponds to the filter plate (9);

carry the inner wall of piece (6) to seted up pumping chamber (11) and storage chamber (12), the interior top of air inlet duct (2) inlays and is equipped with storage water tank (13), the interior bottom of storage water tank (13) passes through connecting pipe (14) and the inside intercommunication of pumping chamber (11), the interior bottom of pumping chamber (11) is provided with a plurality of shower nozzles (15), the interior bottom of carrying piece (6) is through a plurality of collecting vat (16) and the inside intercommunication of storage chamber (12), the inner wall of carrying piece (6) is fixed with breakwater (17) that two symmetries set up, the inner wall of storage chamber (12) passes through cooling tube (18) and the interior top intercommunication of exhaust airway (7), the inside of exhaust airway (7) is provided with dust cleaning device, the inside of carrying piece (6) is provided with rivers pumping installations.

2. The ventilation device for the tunnel according to claim 1, wherein the dust cleaning device comprises a rotating rod (19) rotatably connected with the inner wall of the exhaust duct (7) through a bearing, a plurality of impellers (20) are fixed on the circumferential side wall of the rotating rod (19), the impellers (20) correspond to the air inlet groove (8), the inner walls of the two sides of the exhaust duct (7) are rotatably connected with driven rods (21) through bearings, and the driven rods (21) are connected with the rotating rod (19) through a belt (24).

3. A ventilation device for tunnels according to claim 2, characterized in that the circumferential side walls of both driven rods (21) are fixed with cylindrical blocks (22), the circumferential side walls of the cylindrical blocks (22) are fixed with lugs (23), the lugs (23) correspond to the filter plates (9).

4. The ventilation device for the tunnel according to claim 3, wherein the water flow pumping device comprises two vertical rods (26) rotatably connected with the conveying block (6), the circumferential side walls of the two vertical rods (26) are respectively fixed with an eccentric block (28), one eccentric block (28) is positioned inside the pumping cavity (11), an adjusting device is arranged inside the eccentric block (28), the other eccentric block (28) is positioned inside the storage cavity (12), the inner walls of the pumping cavity (11) and the storage cavity (12) are respectively connected with a sealing plate (29) in a sealing and sliding manner, the side walls of the two sealing plates (29) are respectively fixed with the inner walls of the pumping cavity (11) and the storage cavity (12) through a plurality of return springs (30), the bottoms of the two vertical rods (26) are respectively fixed with a horizontal bevel gear (27), the circumferential side wall of the rotating rod (19) is fixed with two vertical bevel gears (25), and the two vertical bevel gears (25) are correspondingly meshed with the two horizontal bevel gears (27).

5. The ventilation device for the tunnel according to claim 4, wherein the adjusting device comprises an adjusting cavity (31) arranged inside the eccentric block (28), an iron plate (32) is slidably connected to the inner wall of the adjusting cavity (31), one end of the iron plate (32) is fixed to the inner wall of the adjusting cavity (31) through a connecting spring (33), an extending block (34) is fixed to the other end of the iron plate (32), an absorbing block (35) is fixed to the inner wall of the adjusting cavity (31), the absorbing block (35) is an electromagnet, and the absorbing block (35) corresponds to the iron plate (32).

6. The ventilation device for the tunnel according to claim 5, wherein the anti-backflow assembly (5) comprises a fixing rod (36) fixed on the inner wall of the conveying block (6), two sleeve plates (37) are sleeved on the circumferential side wall of the fixing rod (36), mounting plates (38) are fixed on the side walls of the two sleeve plates (37), the two sleeve plates (37) and the two mounting plates (38) are in sealing abutment with the inner wall of the conveying block (6), arc-shaped grooves (39) are formed in the side walls of the two sleeve plates (37), cylindrical rods (40) are fixed on the side walls of the two sleeve plates (37), the two arc-shaped grooves (39) correspond to the two cylindrical rods (40) one to one, arc-shaped push blocks (41) are slidably connected to the inner walls of the arc-shaped grooves (39), the side walls of the arc-shaped push blocks (41) are fixed to the inner walls of the arc-shaped grooves (39) through arc springs (42), one of the arc-shaped grooves (39) is provided with a receiving block (43), one of the arc-shaped push blocks (41) is provided with a contact block (44), and the other of the arc-shaped push blocks (41) are connected to the contact block (44), the insulation plate (35) and the contact block (43).