CN220225438U - Urban underground pipe gallery ventilation and air guide structure - Google Patents

Abstract

The utility model discloses an urban underground pipe gallery ventilation and air guide structure, which relates to the field of underground pipe galleries. According to the utility model, through the arrangement of the structures such as the point-type gas detector, the movable ventilation pipe and the rain shielding bin, when the point-type gas detector detects that dangerous gas in the underground pipe gallery leaks, an alarm can be given out to remind workers, meanwhile, the first motor and the second motor can be driven to accelerate the discharge of the dangerous gas in the underground pipe gallery, the dangerous gas is prevented from being accumulated in the underground pipe gallery, a rain-proof effect can be achieved through the arrangement of the rain shielding bin, rainwater is prevented from entering the underground pipe gallery through the movable ventilation pipe, when the ground water level rises, the foam floating plate can float on the water surface and rise along with the water surface, and meanwhile, the foam floating plate can drive the movable ventilation pipe to rise, so that the movable ventilation pipe is prevented from being flooded with water.

Description

Urban underground pipe gallery ventilation and air guide structure

Technical Field

The utility model relates to the technical field of underground pipe galleries, in particular to a ventilation and air guide structure of an urban underground pipe gallery.

Background

The underground comprehensive pipe rack is also called as a common ditch, is a public tunnel which is built underground in cities and is used for intensively laying municipal pipelines such as electric power, communication, broadcast television, water supply, drainage, heating power, fuel gas and the like, can effectively avoid the phenomenon of zipper roads, and can repair, maintain, expand, reform and the like various pipelines in the pipe rack without repeatedly digging roads by technicians; meanwhile, the rush repair time of the pipeline is greatly shortened.

In the prior art, the underground pipe gallery is usually provided with a ventilation pipe, the ventilation pipe can extend out of the ground, but the natural ventilation speed of air is slower, dangerous gases such as methane and ethane exist in the pipe gallery, if leakage occurs, the dangerous gases are easily accumulated in the underground pipe gallery, the dangerous gases are inhaled by workers to affect the health, and when ponding is generated in rainy days, the ponding easily enters the pipe gallery if the ventilation pipe is not used, so that the ventilation and air guide structure of the urban underground pipe gallery is needed to meet the demands of people.

Disclosure of Invention

The utility model aims to provide an urban underground pipe gallery ventilation and air guide structure, which aims to solve the problems that an underground pipe gallery provided in the background art is generally provided with a ventilation pipe, the ventilation pipe extends out of the ground, but the natural ventilation speed of air is slow, some dangerous gases such as methane and ethane exist in the pipe gallery, if leakage occurs, the dangerous gases are easily accumulated in the underground pipe gallery, the dangerous gases are inhaled by staff to influence the health, and when accumulated water is generated in a rainy day, the accumulated water easily enters the pipe gallery if the ventilation pipe is not used.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a city underground pipe gallery ventilation air guide structure, includes underground pipe gallery, the inner wall movable mounting of underground pipe gallery has a plurality of some type gas detector, fixed mounting has a plurality of installation blocks on the some type gas detector, the mounting hole has been seted up on the installation block, fixed mounting has a plurality of fixed pipes on the underground pipe gallery, install the rain-proof structure that ventilates in the fixed intraductal installation, install the mounting bracket on the rain-proof structure that ventilates, fixed mounting has first fly net on the mounting bracket, install insect-proof structure on the mounting bracket, symmetrical fixed mounting has two fixed axles on the insect-proof structure, all install limit structure on two fixed axles.

Preferably, the ventilating rainproof structure comprises a movable ventilating pipe, the movable ventilating pipe is slidably mounted in a fixed pipe, the movable ventilating pipe is communicated with the fixed pipe, the fixed pipe is communicated with an underground pipe gallery, a rain shield bin is fixedly mounted on the movable ventilating pipe, a plurality of ventilating holes are formed in the rain shield bin and are communicated with the movable ventilating pipe, a connecting frame is fixedly mounted on the inner wall of the fixed pipe, a first motor is fixedly mounted on one side of the connecting frame, the output end of the first motor penetrates through the connecting frame and is fixedly provided with a first ventilating fan blade, a plurality of fixing frames are fixedly mounted on the inner wall of the rain shield bin, a second motor is fixedly mounted on one side of the fixing frames, the output end of the second motor penetrates through the fixing frames and is fixedly provided with a second ventilating fan blade, the second ventilating fan blade is movably mounted in the ventilating hole, a foam floating plate is fixedly mounted on the movable ventilating pipe, and the first motor and the second motor are electrically mounted on the spot type gas detector.

Preferably, the inner wall of the fixed pipe is provided with a limiting chute, a limiting ring is slidably arranged in the limiting chute, and the limiting ring is fixedly arranged on the movable ventilation pipe.

Preferably, a sealing ring is fixedly arranged on the inner wall of the fixed pipe, and the sealing ring is contacted with the movable ventilation pipe.

Preferably, the insect prevention structure comprises a support frame, wherein the support frame is movably arranged on the mounting frame, the mounting frame is movably arranged at the bottom side of the rain shielding bin, and a second insect prevention net is fixedly arranged on the support frame.

Preferably, two T-shaped grooves are formed in the mounting frame, T-shaped strips are slidably mounted in the two T-shaped grooves, the two T-shaped strips are fixedly mounted on the bottom side of the rain shielding bin, two positioning sliding grooves are formed in the supporting frame, positioning strips are slidably mounted in the two positioning sliding grooves, and the two positioning strips are fixedly mounted on the mounting frame.

Preferably, the limit structure comprises a stop block, the stop block is fixedly arranged on a fixed shaft, the fixed shaft is fixedly arranged at the bottom side of the second insect-proof net, a movable rod is rotatably arranged on the fixed shaft, a clamping groove is formed in the movable rod, a clamping rod is movably arranged in the clamping groove, and the clamping rod is fixedly arranged at the bottom side of the mounting frame.

Preferably, the movable rod is provided with a rotating hole, the fixed shaft is rotatably arranged in the rotating hole, the fixed shaft is fixedly sleeved with a torsion spring, one end of the torsion spring is fixedly arranged on the inner wall of the rotating hole, the other end of the torsion spring is fixedly arranged on the fixed shaft, the movable rod is provided with an anti-falling hole, and the stop block is rotatably arranged in the anti-falling hole.

The beneficial effects of the utility model are as follows:

according to the utility model, through the arrangement of the structures such as the point-type gas detector, the movable ventilation pipe and the rain shielding bin, when the point-type gas detector detects that dangerous gas in the underground pipe gallery leaks, an alarm can be given out to remind workers, meanwhile, the first motor and the second motor can be driven to accelerate the discharge of the dangerous gas in the underground pipe gallery, the dangerous gas is prevented from being accumulated in the underground pipe gallery, a rain-proof effect can be achieved through the arrangement of the rain shielding bin, rainwater is prevented from entering the underground pipe gallery through the movable ventilation pipe, when the ground water level rises, the foam floating plate can float on the water surface and rise along with the water surface, and meanwhile, the foam floating plate can drive the movable ventilation pipe to rise, so that the movable ventilation pipe is prevented from being submerged by water.

According to the utility model, through the arrangement of the structures such as the first insect-proof net and the second insect-proof net, the first insect-proof net and the second insect-proof net can shield the bottom side of the rain shielding bin, prevent mosquitoes from entering, and meanwhile, normal ventilation is not affected, and the connection limitation between the mounting frame and the second insect-proof net can be relieved through overturning the two movable rods, so that the mounting frame and the second insect-proof net can be conveniently pulled out, and the first insect-proof net and the second insect-proof net on the mounting frame and the second insect-proof net can be conveniently cleaned.

Drawings

FIG. 1 is a schematic diagram of a ventilation and air-guiding structure of an underground pipe gallery in a city;

FIG. 2 is a schematic diagram of a typical gas detector portion of an urban underground piping lane ventilation and gas guiding structure according to the present utility model;

FIG. 3 is a schematic cross-sectional view of an urban underground piping lane ventilation and air-guiding structure according to the present utility model;

FIG. 4 is a schematic diagram of a cross-sectional structure of a rain shielding cabin portion of an urban underground piping lane ventilation and air guiding structure according to the present utility model;

fig. 5 is a schematic structural diagram of a first insect-proof net and a second insect-proof net of an urban underground pipe gallery ventilation and air-guiding structure according to the present utility model;

FIG. 6 is a schematic view of a movable rod part of a ventilation and air-guiding structure of an underground pipe gallery in a city;

fig. 7 is a schematic structural view of a fixed shaft portion of an urban underground pipe gallery ventilation and air guide structure according to the present utility model.

In the figure: 100. underground pipe gallery; 200. a spot-type gas detector; 201. a mounting block; 202. a mounting hole; 203. a limiting ring; 204. a fixed tube; 205. a movable ventilation pipe; 206. a rain shielding bin; 207. a connecting frame; 208. a first motor; 209. a first ventilation fan blade; 210. a fixing frame; 211. a second motor; 212. a second vent blade; 213. a vent hole; 214. a foam floating plate; 215. limiting sliding grooves; 216. a seal ring; 300. a mounting frame; 301. a first insect-proof net; 302. a support frame; 303. a second insect-proof net; 304. a T-shaped groove; 305. a T-shaped strip; 306. positioning a chute; 307. a positioning strip; 400. a fixed shaft; 401. a stop block; 402. a movable rod; 403. a clamping groove; 404. a clamping rod; 405. a rotation hole; 406. a torsion spring; 407. and (5) preventing the hole from falling off.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1 to 7, an urban underground pipe gallery ventilation and air guide structure comprises an underground pipe gallery 100, wherein a plurality of point-type gas detectors 200 are movably mounted on the inner wall of the underground pipe gallery 100, a plurality of mounting blocks 201 are fixedly mounted on the point-type gas detectors 200, mounting holes 202 are formed in the mounting blocks 201, a plurality of fixing pipes 204 are fixedly mounted on the underground pipe gallery 100, a ventilation and rain-proof structure is mounted in the fixing pipes 204, a mounting frame 300 is mounted on the ventilation and rain-proof structure, a first insect-proof net 301 is fixedly mounted on the mounting frame 300, an insect-proof structure is mounted on the mounting frame 300, two fixing shafts 400 are symmetrically and fixedly mounted on the insect-proof structure, limiting structures are mounted on the two fixing shafts 400, the point-type gas detectors 200 can be mounted at positions in the underground pipe gallery 100 where gas is easy to leak, expansion bolts can be passed through the mounting holes 202 in the mounting blocks 201 and fixed on the wall of the inner wall of the underground pipe gallery 100, when the detected gas is lighter than air, the detector mounting height is 0.5-2 m higher than the release source, when the detected gas is heavier than air, the detector mounting height is 0.3-0.6 m away from the ground, when the spot type gas detector 200 detects the gas leakage, an alarm is given out to remind a worker and start the first motor 208 and the second motor 211, the output end of the first motor 208 can drive the first ventilation fan blade 209 to rotate, suction is generated when the first ventilation fan blade 209 rotates to suck the dangerous gas in the underground pipe gallery 100 into the movable ventilation pipe 205, the dangerous gas can enter the rain shielding cabin 206 after that, the output end of the second motor 211 can drive the second ventilation fan blade 212 to rotate, suction is also generated when the second ventilation fan blade 212 rotates, the dangerous gas in the rain shielding cabin 206 is rapidly discharged to the outside through the ventilation hole 213 to prevent the dangerous gas from being accumulated in the underground pipe gallery 100, the ventilation effect of the underground pipe gallery 100 is improved, and the movable ventilation pipe 205 can be provided with the rain-proof effect by arranging the rain-shielding bin 206, rainwater is prevented from entering the underground pipe gallery 100 through the movable ventilation pipe 205, when the ground rainwater is piled up, the foam floating plate 214 can float on the water surface, and the foam floating plate 214 can lift according to the lifting of the water surface, when the water surface lifts, the foam floating plate 214 can drive the movable ventilation pipe 205 to lift, so that the movable ventilation pipe 205 drives the limiting ring 203 to slide in the limiting sliding groove 215, the moving direction of the movable ventilation pipe 205 is further limited, the tightness between the movable ventilation pipe 205 and the fixed pipe 204 can be increased by arranging the sealing ring 216, the continuously moving movable ventilation pipe 205 can drive the rain-shielding bin 206 to lift, thereby preventing the movable ventilation pipe 205 from being submerged, and can play insect-proof effect through setting up first fly net 301 and second fly net 303, prevent that the mosquito from getting into underground pipe gallery 100 along weather shield 206 and movable ventilation pipe 205, and can overturn two movable poles 402, can rotate on fixed axle 400 through rotation hole 405 when movable pole 402 rotates, realize the effect of upset, the movable pole 402 of lasting upset can compress torsional spring 406 and drive draw-in groove 403 and break away from clamping lever 404, thereby can remove the restriction to mounting bracket 300, afterwards horizontal promotion second fly net 303, make second fly net 303 drive location spout 306 break away from location strip 307, simultaneously second fly net 303 can keep away from movable ventilation pipe 205 and weather shield 206, afterwards horizontal promotion mounting bracket 300, mounting bracket 300 can drive T type groove 304 and break away from T type strip 305, thereby can dismantle first fly net 301 and second fly net 303, the convenient clearance is used repeatedly.

Further, the ventilating and rainproof structure comprises a movable ventilating pipe 205, the movable ventilating pipe 205 is slidably arranged in a fixed pipe 204, the movable ventilating pipe 205 is communicated with the fixed pipe 204, the fixed pipe 204 is communicated with the underground pipe gallery 100, a rain shielding bin 206 is fixedly arranged on the movable ventilating pipe 205, a plurality of ventilating holes 213 are formed in the rain shielding bin 206, the ventilating holes 213 are communicated with the movable ventilating pipe 205, a connecting frame 207 is fixedly arranged on the inner wall of the fixed pipe 204, a first motor 208 is fixedly arranged on one side of the connecting frame 207, the output end of the first motor 208 penetrates through the connecting frame 207 and is fixedly provided with a first ventilating fan blade 209, a plurality of fixing frames 210 are fixedly arranged on the inner wall of the rain shielding bin 206, a second motor 211 is fixedly arranged on one side of the fixing frames 210, the output end of the second motor 211 penetrates through the fixing frames 210 and is fixedly provided with a second ventilating fan blade 212, the second ventilating fan blade 212 is movably arranged in the ventilating holes 213, the movable ventilation pipe 205 is fixedly provided with a foam floating plate 214, the first motor 208 and the second motor 211 are both electrically arranged on the spot-type gas detector 200, the spot-type gas detector 200 can be arranged at a position where gas is easy to leak in the underground pipe gallery 100, an expansion bolt can pass through a mounting hole 202 on the mounting block 201 and is fixed on the wall of the inner wall of the underground pipe gallery 100, when the detected gas is lighter than air, the detector mounting height is 0.5-2 m higher than a release source, when the detected gas is heavier than air, the detector mounting height is 0.3-0.6 m away from the ground, when the spot-type gas detector 200 detects the gas leakage, an alarm is given to remind a worker and start the first motor 208 and the second motor 211, the output end of the first suction motor 208 can drive a first ventilation fan blade 209 to rotate, when the first ventilation fan blade 209 rotates, dangerous gas in the underground pipe gallery 100 is sucked into the movable ventilation pipe 205, then, dangerous gas can enter the rain shielding bin 206, meanwhile, the output end of the second motor 211 can drive the second ventilation fan blade 212 to rotate, suction can be generated when the second ventilation fan blade 212 rotates, dangerous gas in the rain shielding bin 206 is rapidly discharged to the outside through the ventilation hole 213, the dangerous gas is prevented from accumulating in the underground pipe gallery 100, the ventilation effect of the underground pipe gallery 100 is improved, the rain shielding bin 206 can play a role in preventing rain for the movable ventilation pipe 205, rainwater is prevented from entering the underground pipe gallery 100 through the movable ventilation pipe 205, when ground rainwater is accumulated, the foam floating plate 214 can float on the water surface, and the foam floating plate 214 can lift according to the lifting of the water surface, when the water surface rises, the foam floating plate 214 can drive the movable ventilation pipe 205 to rise, so that the movable ventilation pipe 205 drives the limiting ring 203 to slide in the limiting slide groove 215, the moving direction of the movable ventilation pipe 205 is further limited, the sealing performance between the movable ventilation pipe 205 and the fixed pipe 204 can be increased through the arrangement of the sealing ring 216, and the continuously moving movable ventilation pipe 205 can drive the rain shielding bin 206 to rise, so that the movable ventilation pipe 205 is prevented from being submerged.

Further, a limiting chute 215 is formed in the inner wall of the fixed pipe 204, a limiting ring 203 is slidably mounted in the limiting chute 215, the limiting ring 203 is fixedly mounted on the movable ventilation pipe 205, and the movable ventilation pipe 205 which moves drives the limiting ring 203 to slide in the limiting chute 215, so that the moving direction of the movable ventilation pipe 205 is limited.

Further, the sealing ring 216 is fixedly installed on the inner wall of the fixed pipe 204, the sealing ring 216 is in contact with the movable ventilation pipe 205, and the sealing performance between the movable ventilation pipe 205 and the fixed pipe 204 can be improved by arranging the sealing ring 216.

Further, the insect prevention structure comprises a support frame 302, the support frame 302 is movably mounted on the mounting frame 300, the mounting frame 300 is movably mounted on the bottom side of the rain shielding bin 206, the support frame 302 is fixedly provided with a second insect prevention net 303, and an insect prevention effect can be achieved by arranging the first insect prevention net 301 and the second insect prevention net 303.

Further, two T-shaped grooves 304 are formed in the mounting frame 300, T-shaped strips 305 are slidably mounted in the two T-shaped grooves 304, the two T-shaped strips 305 are fixedly mounted on the bottom side of the rain shielding cabin 206, two positioning sliding grooves 306 are formed in the supporting frame 302, positioning strips 307 are slidably mounted in the two positioning sliding grooves 306, the two positioning strips 307 are fixedly mounted on the mounting frame 300, the second insect-proof net 303 is horizontally pushed, the second insect-proof net 303 drives the positioning sliding grooves 306 to separate from the positioning strips 307, meanwhile, the second insect-proof net 303 is far away from the movable ventilation pipe 205 and the rain shielding cabin 206, the mounting frame 300 is horizontally pushed, the T-shaped grooves 304 are driven to separate from the T-shaped strips 305, and accordingly the first insect-proof net 301 and the second insect-proof net 303 can be detached.

Further, the limit structure comprises a stop block 401, the stop block 401 is fixedly arranged on the fixed shaft 400, the fixed shaft 400 is fixedly arranged at the bottom side of the second insect-proof net 303, the movable rod 402 is rotatably arranged on the fixed shaft 400, the movable rod 402 is provided with a clamping groove 403, a clamping rod 404 is movably arranged in the clamping groove 403, the clamping rod 404 is fixedly arranged at the bottom side of the mounting frame 300, the two movable rods 402 are overturned, the movable rod 402 rotates on the fixed shaft 400 through a rotating hole 405 when rotating, the overturned effect is realized, the continuously overturned movable rod 402 compresses the torsion spring 406 and drives the clamping groove 403 to be separated from the clamping rod 404, so that the limit on the mounting frame 300 can be relieved,

further, a rotating hole 405 is formed in the movable rod 402, the fixed shaft 400 is rotatably mounted in the rotating hole 405, a torsion spring 406 is fixedly sleeved on the fixed shaft 400, one end of the torsion spring 406 is fixedly mounted on the inner wall of the rotating hole 405, the other end of the torsion spring 406 is fixedly mounted on the fixed shaft 400, an anti-falling hole 407 is formed in the movable rod 402, a stop block 401 is rotatably mounted in the anti-falling hole 407, the movable rod 402 can rotate on the fixed shaft 400 through the rotating hole 405 when rotating, the overturning effect is achieved, and the continuously overturned movable rod 402 can compress the torsion spring 406.

The working principle of the utility model is as follows:

the spot type gas detector 200 can be installed at a position where gas is easy to leak in the underground pipe gallery 100, an expansion bolt can pass through a mounting hole 202 on a mounting block 201 and is fixed on the wall of the inner wall of the underground pipe gallery 100, when the detected gas is lighter than air, the installation height of the detector is 0.5-2 m higher than the release source, when the detected gas is heavier than air, the installation height of the detector is 0.3-0.6 m away from the ground, when the spot type gas detector 200 detects the gas leakage, an alarm is sent to remind a worker and start a first motor 208 and a second motor 211, the output end of the first motor 208 drives a first ventilation fan blade 209 to rotate, when the first ventilation fan blade 209 rotates, suction force is generated to suck the dangerous gas in the underground pipe gallery 100 into a movable ventilation pipe 205, then the dangerous gas enters the rain shielding bin 206, and the output end of the second motor 211 drives a second ventilation fan blade 212 to rotate, the second ventilation fan blade 212 can generate suction force when rotating, the dangerous gas in the rain shielding bin 206 is quickly discharged to the outside through the ventilation hole 213, the dangerous gas is prevented from piling up in the underground pipe gallery 100, the ventilation effect of the underground pipe gallery 100 is improved, the rain shielding bin 206 can play a role in preventing rain for the movable ventilation pipe 205, the rainwater is prevented from entering the underground pipe gallery 100 through the movable ventilation pipe 205, when the ground rainwater is piled up, the foam floating plate 214 can float on the water surface, and the foam floating plate 214 can lift according to the lifting of the water surface, when the water surface rises, the foam floating plate 214 can drive the movable ventilation pipe 205 to rise, so that the movable ventilation pipe 205 drives the limiting ring 203 to slide in the limiting sliding groove 215, the moving direction of the movable ventilation pipe 205 is further limited, the sealing performance between the movable ventilation pipe 205 and the fixed pipe 204 can be improved through the arrangement of the sealing ring 216, the movable ventilation pipe 205 which continuously moves can drive the rain shielding bin 206 to ascend so as to prevent the movable ventilation pipe 205 from being submerged, and the first insect prevention net 301 and the second insect prevention net 303 are arranged so as to play a role in preventing mosquitoes from entering the underground pipe gallery 100 along the rain shielding bin 206 and the movable ventilation pipe 205, two movable rods 402 can be overturned, the movable rods 402 can rotate on the fixed shaft 400 through the rotating holes 405 when rotating, the overturning effect is realized, the movable rods 402 can rotate on the stop block 401 through the anti-falling holes 407 when rotating, falling is avoided, the movable rods 402 which continuously overturned can compress the torsion springs 406 and drive the clamping grooves 403 to separate from the clamping rods 404, so that the limitation on the installation frame 300 can be relieved, then the second insect prevention net 303 is horizontally pushed so that the second insect prevention net 303 drives the positioning sliding grooves 306 to separate from the positioning strips 307, meanwhile, the second insect prevention net 303 can be far away from the movable ventilation pipe 205 and the rain shielding bin 206, and the installation frame 300 are horizontally pushed, and the T-shaped grooves 304 can be separated from the T-shaped strips 305 so that the first insect prevention net 301 and the second insect prevention net 303 can be disassembled, and the insect prevention net is convenient to be repeatedly cleaned.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. Urban underground pipe gallery ventilation air guide structure, including underground pipe gallery (100), its characterized in that: the utility model discloses a gas detector, including gas detector, mounting frame (300) are gone up and are gone up fixed mounting has a plurality of installation blocks (201), install mounting hole (202) on installation block (201), fixed mounting has a plurality of fixed pipes (204) on underground pipe gallery (100), install ventilation rain-proof structure in fixed pipe (204), install mounting frame (300) on the rain-proof structure that ventilates, fixed mounting has first fly net (301) on mounting frame (300), install insect-proof structure on mounting frame (300), symmetrical fixed mounting has two fixed axles (400) on insect-proof structure, all install limit structure on two fixed axles (400).

2. The urban underground pipe gallery ventilation and air guide structure of claim 1, wherein: the utility model provides a rain-proof structure ventilates, including movable ventilation pipe (205), movable ventilation pipe (205) slidable mounting is in fixed pipe (204), movable ventilation pipe (205) are linked together with fixed pipe (204), fixed pipe (204) are linked together with underground pipe gallery (100), fixed mounting has weather shield storehouse (206) on movable ventilation pipe (205), a plurality of ventilation holes (213) have been seted up on weather shield storehouse (206), ventilation hole (213) are linked together with movable ventilation pipe (205), the inner wall fixed mounting of fixed pipe (204) has link (207), one side fixed mounting of link (207) has first motor (208), the output through-connection of first motor (208) frame (207) and fixed mounting have first ventilation flabellum (209), the inner wall fixed mounting of weather shield storehouse (206) has a plurality of mounts (210), one side fixed mounting of mount (211) has second motor, the output of second motor (211) runs through mount (210) and fixed mounting has second ventilation flabellum (212), second ventilation flabellum (212) movable mounting is in movable mounting (213) ventilation pipe (205), movable mounting has on foam board (208) fixed mounting at second electrical property (200) and equal air-float point.

3. The urban underground pipe gallery ventilation and air guide structure of claim 1, wherein: the inner wall of the fixed pipe (204) is provided with a limiting chute (215), a limiting ring (203) is slidably arranged in the limiting chute (215), and the limiting ring (203) is fixedly arranged on the movable ventilation pipe (205).

4. The urban underground pipe gallery ventilation and air guide structure of claim 1, wherein: the inner wall of the fixed pipe (204) is fixedly provided with a sealing ring (216), and the sealing ring (216) is contacted with the movable ventilation pipe (205).

5. The urban underground pipe gallery ventilation and air guide structure of claim 1, wherein: the insect prevention structure comprises a support frame (302), wherein the support frame (302) is movably arranged on a mounting frame (300), the mounting frame (300) is movably arranged at the bottom side of a rain shielding bin (206), and a second insect prevention net (303) is fixedly arranged on the support frame (302).

6. The urban underground pipe gallery ventilation and air guide structure of claim 1, wherein: two T-shaped grooves (304) are formed in the mounting frame (300), T-shaped strips (305) are slidably mounted in the two T-shaped grooves (304), the two T-shaped strips (305) are fixedly mounted on the bottom side of the rain shielding bin (206), two positioning sliding grooves (306) are formed in the supporting frame (302), positioning strips (307) are slidably mounted in the two positioning sliding grooves (306), and the two positioning strips (307) are fixedly mounted on the mounting frame (300).

7. The urban underground pipe gallery ventilation and air guide structure of claim 1, wherein: limit structure includes dog (401), dog (401) fixed mounting on fixed axle (400), and fixed axle (400) fixed mounting is in the bottom side of second fly net (303), rotates on fixed axle (400) and installs movable rod (402), has seted up draw-in groove (403) on movable rod (402), movable mounting has draw-in lever (404) in draw-in groove (403), and draw-in lever (404) fixed mounting is in the bottom side of mounting bracket (300).

8. The urban underground pipe gallery ventilation and air guide structure of claim 7, wherein: the movable rod (402) is provided with a rotating hole (405), the fixed shaft (400) is rotatably arranged in the rotating hole (405), the fixed shaft (400) is fixedly sleeved with a torsion spring (406), one end of the torsion spring (406) is fixedly arranged on the inner wall of the rotating hole (405), the other end of the torsion spring (406) is fixedly arranged on the fixed shaft (400), the movable rod (402) is provided with an anti-falling hole (407), and the stop block (401) is rotatably arranged in the anti-falling hole (407).