Ventilation system for improving underground engineering environment

Abstract

The invention discloses a ventilation system for underground engineering environment improvement, and belongs to the technical field of underground engineering ventilation. The ventilation system comprises a construction channel, and the top of an inner cavity of the construction channel is provided with an exhaust emission module and an air inlet module; and the waste gas emission module comprises a plurality of exhaust channels installed at the top of the construction channel, purification mechanisms movably installed at the bottoms of the exhaust channels and emission fans installed outside the exhaust channels, and the end parts of the exhaust channels are connected with one another, the purification mechanisms are movably installed at the bottoms of the exhaust channels, and the emission fans are installed outside the exhaust channels. The dust detection sensor can give working instructions to the corresponding number of butt joint assemblies according to the dust concentration numerical value in the construction channel, the butt joint assemblies can drive the filtering assemblies to move at the bottom of the exhaust channel during working, and when the filtering assemblies move to the designated position, dust can be filtered; and the dust falling effect of the construction channel can be improved according to the dust concentration during construction.

Description

Technical Field

[0001] This invention relates to the field of ventilation technology for underground engineering, specifically a ventilation system for improving the environment of underground engineering projects. Background Technology

[0002] Underground engineering projects, such as mine tunnels, traffic tunnels, and underground utility tunnels, are mostly located in enclosed or semi-enclosed environments. During operation, harmful gases and dust can easily accumulate, and temperature and humidity can easily become unbalanced. Therefore, ventilation systems are needed to optimize the air environment to ensure personnel safety and the smooth progress of the project. Currently, extensive research on ventilation technologies for underground engineering has been conducted both domestically and internationally, resulting in various modes such as natural ventilation, mechanical ventilation, and hybrid ventilation. Core components such as high-efficiency ventilators and intelligent monitoring equipment have been developed, which can achieve reasonable airflow distribution by optimizing the airflow path layout and adjusting ventilation parameters.

[0003] Authorization announcement number CN114483145B discloses a ventilation system and ventilation method for the construction of a large underground engineering cavern. This invention belongs to the field of water transmission and power generation systems, including a pipeline section and an exhaust mechanism. The pipeline section includes a main powerhouse, a main transformer room and a tailrace pressure regulating room connected in sequence. The roof of the main powerhouse is connected to an upward-extending underground air supply tunnel. An exhaust shaft is provided on the rear side of the main transformer room. A ventilation tunnel is connected to the upper side of the tailrace pressure regulating room. The beneficial effects are as follows: This invention replaces the existing method of directly suspending and fixing the fan to the tunnel ceiling with a separate arched support rail, separating the axial flow fan from the tunnel ceiling. This makes the installation and positioning of the axial flow fan more convenient and improves the drawback of the existing fixing method, which is prone to loosening after blasting inside the tunnel. The position adjustment of the axial flow fan is also more convenient. An active filtration and air impurity collection filter assembly is set at the air inlet of the axial flow fan. Dust filtration and discharge are achieved by the pressure rotation of multiple sets of filter plates on the outside of the synchronous shaft. There is no need for manual cleaning of the fan and air duct. In this invention, the fan is installed in a designated position to extract and reduce dust in the corresponding area. However, in underground engineering construction, when the dust concentration is high, the working efficiency is reduced. In addition, there will be a gap when the filter plates are replaced, which will result in the air being discharged without filtration. Summary of the Invention

[0004] The purpose of this invention is to provide a ventilation system for improving the environment of underground engineering projects. The system uses a dust detection sensor to detect the dust concentration inside the construction passage, and the dust detection sensor can move a corresponding number of purification units to the area according to the dust concentration value inside the construction passage, thereby improving the dust purification effect in the construction area of ​​the construction passage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a ventilation system for improving the environment of underground engineering projects, comprising: a construction passage, wherein an exhaust gas emission module and an air intake module are respectively installed on the top of the inner cavity of the construction passage, the exhaust gas emission module includes several exhaust channels connected to each other at their ends installed on the top of the construction passage, a purification mechanism movably installed at the bottom of the exhaust channels, and an exhaust fan installed outside the exhaust channels, wherein the purification mechanism includes a filter assembly and a docking assembly; The filter assembly includes a housing and filter plates. The bottom of the exhaust channel is provided with a housing that runs vertically through it. The left and right sides of the housing are provided with arc-shaped grooves for the filter plates to pass through. A lower guide plate for guiding air into the arc-shaped groove on the right side of the housing is fixedly installed on the bottom inner side of the housing. A rotating shaft is rotatably installed in the middle inner side of the housing. At least four filter plates are installed on the outer surface of the rotating shaft in a circular array. The docking assembly includes slide rails and a dust detection sensor. Two slide rails are symmetrically installed at the center of the bottom of the exhaust channel. A sliding frame is movably installed on the upper part of the box. The two sides of the sliding frame are movably connected between the two slide rails. Cylinders are fixedly installed on both the left and right sides of the box. The output end of the cylinder is fixedly connected to the bottom of the sliding frame. A dust detection sensor for detecting dust inside the construction channel is installed on the back of the exhaust channel. The horizontal movement of the sliding frame within the slide rails can drive the box to move at the bottom of the exhaust channel. When the box moves to a designated position, the cylinder can connect the top of the box with the bottom of the exhaust channel.

[0006] Preferably, the exhaust channel includes an air inlet, a sealing door, and a top plate. Multiple air inlets are installed at equal intervals inside each exhaust channel. Two sealing doors are symmetrically rotated and installed on the inner top of the air inlet via a reset member. Sealing members are provided at the connection between the two sealing doors and at the connection between the sealing door and the air inlet. Two top plates are symmetrically slidably connected to the inner side of the air inlet near the sealing door. The two top plates can vertically rotate and open the two sealing doors.

[0007] Preferably, the filter assembly further includes an upper guide plate and a positioning plate. The upper guide plate is fixedly installed on the upper part of the inner cavity of the housing, and the positioning plate is rotatably installed on the inner wall of the housing near the lower guide plate via a reset component.

[0008] Preferably, the docking assembly further includes a rack and a top block. The rack is fixedly installed at the bottom of the exhaust channel, and a matching gear is connected to the side of the rack. The center of the gear is installed on the back of the housing via a drive component. A laser sensor is installed at the front of the housing. The number of targets at the bottom of the exhaust channel is the same as the number of air inlets. Two top blocks that cooperate with the top plate are symmetrically fixedly installed on the top of the inner wall of the housing.

[0009] Preferably, the purification mechanism further includes a dust removal component, which includes an extrusion groove and an annular groove. The outer surface of the rotating shaft has four extrusion grooves arranged in an annular array for sliding of the filter plate. The extrusion grooves are connected to the filter plate by springs. The two ends of the rotating shaft near the extrusion grooves each have four mounting grooves arranged in an annular array. A rotating cylinder is rotatably mounted on the inner wall of each of the four mounting grooves. Annular grooves are provided on the front and rear sides of the inner wall of the housing. The center of the annular groove is on the same axis as the center of the rotating shaft. The rotating cylinder is connected to the annular groove by a transmission component.

[0010] Preferably, the dust removal assembly further includes a reciprocating screw, a movable seat, and a scraper. Two reciprocating screws are symmetrically and rotatably mounted on the filter side of the filter plate via a sliding groove. The top end of the reciprocating screw passes through the filter plate and is slidably connected to the extrusion groove inside the rotating cylinder. The reciprocating screw is rotatably connected to the filter plate, and the reciprocating screw is slidably and rotatably connected to the extrusion groove. The end of the reciprocating screw is axially slidably connected to the rotating cylinder. A movable seat is threadedly connected to the outer surface of the reciprocating screw. The side of the movable seat is slidably connected to the sliding groove on one side of the filter plate. A scraper is fixedly and rotatably mounted between the two movable seats via a reset member. The side of the scraper that abuts against the filter plate has an inclined surface.

[0011] Preferably, the dust removal assembly further includes a top rod and magnetic strips. The top rod is fixedly installed on the upper part of the filter plate near the rotating shaft, and two magnetic strips are symmetrically installed on the side of the filter plate near the scraper through strip grooves. The magnetic strips are magnetically connected to the scraper.

[0012] Preferably, the dust removal assembly further includes a wind cup and a collection box. The wind cup is movably installed through a sliding hole near the bottom of the lower guide plate near the positioning plate. A spiral groove is formed on the inner wall of the sliding hole of the lower guide plate. The two ends of the spiral groove are connected by a strip groove. A slider for cooperating with the spiral groove and the strip groove is fixedly installed on the surface of the wind cup near the spiral groove. The collection box is movably installed on the upper surface of the lower guide plate and the front of the box body through an assembly groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are: a ventilation system for improving the underground engineering environment; 1. Equipped with a dust detection sensor, it can detect the dust concentration inside the construction channel. Based on the dust concentration value inside the construction channel, the dust detection sensor can issue working instructions to a corresponding number of docking components. When the docking components are working, they will drive the filter components to move at the bottom of the exhaust channel. When the filter components move to the designated position, they can filter the dust, so that the construction channel can improve the dust reduction effect according to the dust concentration during construction. 2. Each exhaust channel has multiple air inlets installed at equal intervals inside. When the box moves to the bottom of the designated air inlet, the cylinder works to drive the box to move vertically within the sliding frame. When the box moves vertically, it will drive the top block to move to the bottom of the top plate. At this time, when the box moves vertically, it will drive the top block to move vertically. The vertical movement of the top block can push the top plate to move vertically. When the top plate moves vertically, the top will push the closed door. The closed door can be opened by the reset component. After the closed door is opened, the air inside the construction channel will enter the air inlet after being filtered by the filter component, and then enter the exhaust channel through the air inlet to be discharged, which facilitates the improvement of the exhaust efficiency of the air inlet. 3. Equipped with a dust detection sensor, it sends working commands to the motor. When the motor is working, it drives the gears to rotate. The rotation of the gears can mesh with the rack and pinion, which in turn moves the housing. The movement of the housing moves the laser sensor. When the housing moves to the bottom of the designated air inlet, it can be accurately positioned by the laser sensor in conjunction with the target, making it easier for the housing to be positioned more accurately when docking with the air inlet. 4. When air enters the arc-shaped groove on the right side of the chamber, the filter plate can filter the dust inside the air. When the dust on the filter plate reaches a specified value, the air will blow the filter plate to rotate 90°. When the filter plate rotates, it can drive the rotating shaft and the other three filter plates to rotate. When the bottom filter plate rotates into the arc-shaped groove on the right side of the chamber, the other filter plate will rotate out of the arc-shaped groove on the right side of the chamber. This can avoid the gap when the two filter plates are replaced. 5. When the rotating shaft inside the housing rotates, it drives the rotating cylinder to rotate through the transmission components. The rotation of the rotating cylinder drives the reciprocating screw to rotate, which in turn drives the moving seat to slide back and forth in the mounting groove of the filter plate. When the moving seat slides back and forth, it drives the reset component to move the scraper. When the scraper moves, the inclined surface can scrape off the dust on the filter plate. When the filter plate rotates to the upper part of the lower guide plate, the rotation of the air cup can drive the filter plate to rise and fall and vibrate through the cooperation of the spiral groove, the strip groove and the slider. When the filter plate vibrates, it can shake the dust on the surface onto the lower guide plate and also shake off the dust adhering to the scraper. When the dust falls onto the guide plate, it will slide into the collection box for collection, which facilitates the quick cleaning and collection of dust on the filter plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the exhaust gas emission module of the present invention; Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the exhaust channel of the present invention; Figure 4 This is the present invention. Figure 3 A magnified schematic diagram of the local structure; Figure 5 This is a schematic diagram of a partial cross-sectional view of the exhaust channel of the present invention. Figure 6 This is a schematic diagram of the three-dimensional structure of the box body of the present invention; Figure 7 This is a schematic diagram of the side structure of the box body of the present invention; Figure 8 This is a schematic diagram of the three-dimensional cross-sectional structure of the box body of the present invention; Figure 9 This is a schematic diagram of the front view of the housing structure of the present invention; Figure 10 This is a three-dimensional enlarged structural diagram of the rotating shaft and filter plate of the present invention; Figure 11 This is a three-dimensional enlarged structural diagram of the filter plate of the present invention; Figure 12 This is the present invention. Figure 11 Enlarged structural diagram of section A; Figure 13 This is a perspective view of the lower guide plate structure of the present invention; Figure 14 This is the present invention. Figure 13 Enlarged structural diagram of section B.

[0015] In the diagram: 100, construction access road; 200. Exhaust gas emission module; 210. Exhaust passage; 211. Air inlet; 212. Sealing door; 213. Top plate; 220. Cleanroom facilities; 221. Filter assembly; 2211. Housing; 2212. Lower guide plate; 2213. Upper guide plate; 2214. Rotating shaft; 2215. Filter plate; 2216. Positioning plate; 222. Docking assembly; 2221. Slide rail; 2222. Sliding frame; 2223. Rack; 2224. Gear; 2225. Laser sensor; 2226. Target; 2227. Cylinder; 2228. Top block; 2229. Dust detection sensor; 223. Dust removal assembly; 2231. Extrusion groove; 2232. Spring; 2233. Mounting groove; 2234. Rotating cylinder; 2235. Transmission component; 2236. Annular groove; 2237. Reciprocating lead screw; 2238. Moving seat; 2239. Scraper; 22310. Top rod; 22311. Magnetic strip; 22312. Air cup; 22313. Spiral groove; 22314. Strip groove; 22315. Slider; 22316. Collection box; 230. Exhaust fan; 300. Intake module. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] Please see Figures 1-5 The present invention provides an embodiment of a ventilation system for improving the environment of underground engineering projects, comprising: a construction passage 100, wherein an exhaust gas emission module 200 and an air intake module 300 are respectively installed on the top of the inner cavity of the construction passage 100; the exhaust gas emission module 200 includes several exhaust channels 210 connected at their ends installed on the top of the construction passage 100, a purification mechanism 220 movably installed at the bottom of the exhaust channel 210, and an exhaust fan 230 installed outside the exhaust channel 210; the purification mechanism 220 includes a filter assembly 221 and a docking assembly 222. It should be noted that when the air intake module 300 is working, it can deliver external air into the construction channel 100 for air supply, and when the exhaust fan 230 is working, it can draw the air inside the construction channel 100 into the purification mechanism 220. When the air enters the purification mechanism 220, it can filter the dust generated during construction. After the air is purified, it enters the exhaust channel 210 and is discharged to the outside by the exhaust fan 230. Thus, the air intake module 300 and the exhaust module 200 work together to achieve the function of ventilation inside the construction channel 100. The docking component 222 can detect the dust concentration inside the construction channel 100 through its components. When the dust concentration is higher than a specified value at a certain point in the construction channel 100, the docking component 222 closest to the construction location will start working (the corresponding number of docking components 222 needs to be called according to the dust concentration value). When the docking component 222 is working, it will drive the filter component 221 to move at the bottom of the exhaust channel 210. When the filter component 221 moves to the specified position, it can filter the dust.

[0019] like Figures 1-6 As shown, the exhaust channel 210 includes an air inlet 211, a sealing door 212, and a top plate 213. Multiple air inlets 211 are installed at equal intervals inside each exhaust channel 210. Two sealing doors 212 are symmetrically rotated and installed on the inner top of the air inlet 211 through a reset component. Sealing components are provided at the connection between the two sealing doors 212 and at the connection between the sealing door 212 and the air inlet 211. The sealing components are generally composed of sealing gaskets and other components. The reset component is generally composed of mounting cylinders, rotating rods, torsion springs and other components. Two top plates 213 are symmetrically slidably connected to the inner side of the air inlet 211 near the sealing door 212. The two top plates 213 can vertically rotate and open the two sealing doors 212. It is conceivable that when the docking component 222 moves the filter component 221 to the bottom of the air inlet 211 of the designated exhaust channel 210, the operation of the docking component 222 can drive the filter component 221 to move vertically. When the filter component 221 moves vertically, its top will dock with the bottom of the air inlet 211. When the top of the filter component 221 docks with the bottom of the air inlet 211, it can push the top plate 213 to move vertically. When the top plate 213 moves vertically, its top will push the sealing door 212. The sealing door 212 being pushed can drive the rotating rod to rotate. When the rotating rod rotates, it can rotate inside the air inlet 211 and the mounting cylinder. When the rotating rod rotates, it will twist the torsion spring. After the sealing door 212 is opened, the air inside the construction channel 100 will enter the air inlet 211 after being filtered by the filter component 221, and then enter the exhaust channel 210 through the air inlet 211 and be discharged. After the filter assembly 221 is separated from the air inlet 211, the sealing door 212 can be reset and closed by the elastic force of the torsion spring. After the sealing door 212 is closed, the air inlet 211 will be sealed by the sealing gasket, thereby preventing leakage from the exhaust channel 210 when delivering air.

[0020] like Figures 2-13 As shown, the filter assembly 221 includes a housing 2211 and filter plates 2215. The bottom of the exhaust channel 210 is provided with a housing 2211 that runs vertically through the bottom. The left and right sides of the housing 2211 are provided with arc-shaped grooves for the filter plates 2215 to pass through. A lower guide plate 2212 for guiding air into the arc-shaped groove on the right side of the housing 2211 is fixedly installed on the bottom inner side of the housing 2211. A rotating shaft 2214 is rotatably installed in the middle inner side of the housing 2211. At least four filter plates 2215 are installed on the outer surface of the rotating shaft 2214 in a ring array. It is worth noting that air can enter the interior of the housing 2211 through the bottom of the housing 2211. When the air enters the interior of the housing 2211, it can be guided to the arc-shaped groove on the right side of the housing 2211 by the lower guide plate 2212. When the air enters the arc-shaped groove on the right side of the housing 2211, the filter plate 2215 can filter the dust inside the air. When the dust on the filter plate 2215 reaches a specified value, the air will blow the filter plate 2215 to rotate 90°. When the filter plate 2215 rotates, it can drive the rotating shaft 2214 and the other three filter plates 2215 to rotate. One of the filter plates 2215 will rotate into the arc-shaped groove on the right side of the housing 2211 to continue filtering the air.

[0021] like Figures 1-3 As shown, the filter assembly 221 also includes an upper guide plate 2213 and a positioning plate 2216. The upper guide plate 2213 is fixedly installed on the upper part of the inner cavity of the housing 2211. The positioning plate 2216 is rotatably installed on the inner wall of the housing 2211 near the lower guide plate 2212 through a reset component. The reset component is generally composed of components such as an installation cylinder, a rotating rod, and a torsion spring. It is clear that when air enters the arc-shaped groove on the right side of the housing 2211 and is filtered, it is guided into the exhaust channel 210 through the upper guide plate 2213. When the air blows against the filter plate 2215 in the arc-shaped groove on the right side of the housing 2211, the filter plate 2215 will drive the rotating shaft 2214 and the other three filter plates 2215 to rotate. The filter plate 2215 located above the lower guide plate 2212 will push the positioning plate 2216. When the positioning plate 2216 is pushed, it can drive the two ends of the rotating rod to rotate inside the housing 2211 and the mounting cylinder. When the rotating rod rotates, it will twist the torsion spring. When the filter plate 221... 5. When the upper part of the positioning plate 2216 is rotated out, it will rotate into the arc-shaped groove on the right side of the housing 2211. At this time, the positioning plate 2216 can be reset by the torsion force of the torsion spring itself. After the positioning plate 2216 is reset, it can position another filter plate 2215. Thus, the four filter plates 2215 can continuously filter the air by repeating this process. When the filter plates 2215 are switching, the other filter plate 2215 will only rotate out of the arc-shaped groove on the right side of the housing 2211 when the bottom filter plate 2215 rotates into the arc-shaped groove on the right side of the housing 2211. This can avoid the gap period when the two filter plates 2215 are replaced.

[0022] like Figures 1-9As shown, the docking assembly 222 includes a slide rail 2221 and a dust detection sensor 2229. Two slide rails 2221 are symmetrically installed at the center of the bottom of the exhaust channel 210. A sliding frame 2222 is movably installed on the upper part of the box 2211. The two sides of the sliding frame 2222 are movably connected between the two slide rails 2221. Cylinders 2227 are fixedly installed on both the left and right sides of the box 2211. The output end of the cylinder 2227 is fixedly connected to the bottom of the sliding frame 2222. A dust detection sensor 2229 for detecting dust inside the construction channel 100 is installed on the back of the exhaust channel 210. The horizontal movement of the sliding frame 2222 within the slide rail 2221 can drive the box 2211 to move at the bottom of the exhaust channel 210. When the box 2211 moves to a designated position, the operation of the cylinder 2227 can connect the top of the box 2211 with the bottom of the exhaust channel 210. It should be understood that when the dust detection sensor 2229 detects that the dust at a certain location within the construction channel 100 has reached a specified value, the dust detection sensor 2229 will issue a working instruction to the relevant components. When the relevant components work, they will drive the sliding frame 2222 to move. When the sliding frame 2222 moves, it can slide inside the slide rail 2221. When the sliding frame 2222 slides, it can drive the housing 2211 to move. When the housing 2211 moves to the bottom of the air inlet 211 of the designated exhaust channel 210, the cylinder 2227 will work to drive the housing 2211 to move vertically within the sliding frame 2222. When the housing 2211 moves vertically, it will open the air inlet 211.

[0023] like Figures 2-7 As shown, the docking assembly 222 also includes a rack 2223 and a top block 2228. The rack 2223 is fixedly installed at the bottom of the exhaust channel 210. The rack 2223 is connected to the side of the rack 2223 and a matching gear 2224. The center of the gear 2224 is installed on the back of the housing 2211 by a drive component, which is generally a motor. A laser sensor 2225 is installed at the front of the housing 2211. The bottom of the exhaust channel 210 is equipped with the same number of targets 2226 as the air inlet 211. Two top blocks 2228 that cooperate with the top plate 213 are symmetrically fixedly installed on the top of the inner wall of the housing 2211. It should be noted that the dust detection sensor 2229 sends working commands to the motor. When the motor is working, it drives the gear 2224 to rotate. The rotation of the gear 2224 can be meshed and rotated through the rack 2223. When the gear 2224 is meshed and rotated, it can drive the housing 2211 to move. When the housing 2211 moves, it will drive the laser sensor 2225 to move. When the housing 2211 moves to the bottom of the designated air inlet 211, it can be accurately positioned through the cooperation of the laser sensor 2225 and the target 2226. The movement of the housing 2211 to the designated position will drive the top block 2228 to the bottom of the top plate 213. At this time, when the housing 2211 moves vertically, it will drive the top block 2228 to move vertically. The vertical movement of the top block 2228 can push the top plate 213 to move vertically. The vertical movement of the top plate 213 will open the closed door 212.

[0024] like Figures 2-13 As shown, the purification mechanism 220 also includes a dust removal assembly 223, which includes a squeezing groove 2231 and an annular groove 2236. The outer surface of the rotating shaft 2214 has four squeezing grooves 2231 arranged in an annular array for sliding the filter plate 2215. The squeezing grooves 2231 are connected to the filter plate 2215 by springs 2232. At both ends of the rotating shaft 2214 near the squeezing grooves 2231, four mounting grooves 2233 are arranged in an annular array. Rotary mounting elements are rotatably installed on the inner walls of the four mounting grooves 2233. The inner walls of the cylinder 2234 and the housing 2211 are provided with annular grooves 2236 on both the front and rear sides. The center of the annular groove 2236 is on the same axis as the center of the rotating shaft 2214. The rotating cylinder 2234 and the annular groove 2236 are connected by a transmission component 2235. The transmission component 2235 is generally composed of bevel gear set, rotating rod, gear, bearing seat and arc rack, etc. The arc rack is located in the lower right part of the annular groove 2236, and the bevel gear set, rotating rod, gear and bearing seat are located inside the mounting groove 2233. It is conceivable that when the rotating shaft 2214 rotates, it will drive the mounting groove 2233 to rotate. When the mounting groove 2233 rotates, it will drive the gear to rotate within the annular groove 2236. When the gear rotates to the side of the arc-shaped rack, it will mesh and rotate. When the gear meshes and rotates, it can drive the rotating rod to rotate within the bearing seat. When the rotating rod rotates, it will drive the bevel gear set to work. When the bevel gear set works, it can drive the rotating cylinder 2234 to rotate inside the mounting groove 2233. When the rotating cylinder 2234 rotates, it can drive the components to clean the dust on the surface of the filter plate 2215.

[0025] When the filter plate 2215 rotates to the upper part of the lower guide plate 2212, the filter plate 2215 can be pushed back and forth by the cooperation of the parts. When the filter plate 2215 is pushed, it will slide into the extrusion groove 2231. When the filter plate 2215 slides, it will compress the spring 2232. When the bottom of the filter plate 2215 separates from the parts, the filter plate 2215 can be reset by the elastic force of the spring 2232. Then, when the filter plate 2215 moves up and down, it will collide with the lower guide plate 2212. When the filter plate 2215 collides, it will shake off the dust on the surface.

[0026] like Figures 2-3 As shown, the dust removal assembly 223 also includes a reciprocating screw 2237, a movable seat 2238, and a scraper 2239. Two reciprocating screws 2237 are symmetrically and rotatably mounted on the filter side of the filter plate 2215 via sliding grooves. The top ends of the reciprocating screws 2237 pass through the filter plate 2215 and are slidably connected to the extrusion groove 2231 inside the rotating cylinder 2234. The reciprocating screws 2237 and the filter plate 2215 are rotatably connected, and the reciprocating screws 2237 and the extrusion groove 2231 are slidably and rotatably connected. The end of the reciprocating screw 2237 is axially slidably connected to the rotating cylinder 2234. The outer surface of the reciprocating screw 2237 is threadedly connected to the movable seat 2238. The side of the movable seat 2238 is slidably connected to the sliding groove on one side of the filter plate 2215. The scraper 2239 is fixedly and rotatably installed between the two movable seats 2238 through a reset component. The reset component is generally composed of components such as a mounting cylinder, a rotating rod, and a torsion spring. The scraper 2239 has an inclined surface on the side that abuts against the filter plate 2215. It is worth noting that when the rotating cylinder 2234 rotates, it will drive the reciprocating screw 2237 to rotate. When the reciprocating screw 2237 rotates, it can rotate inside the extrusion groove 2231 and the filter plate 2215. When the reciprocating screw 2237 rotates, it can drive the moving seat 2238 to slide reciprocally in the sliding groove of the filter plate 2215. When the moving seat 2238 slides reciprocally, it will drive the reset component to move the scraper 2239. When the scraper 2239 moves, the inclined surface can scrape off the dust on the filter plate 2215.

[0027] When the filter plate 2215 vibrates, it can slide in the extrusion groove 2231. When the filter plate 2215 slides, it can drive the reciprocating screw 2237 to slide inside the extrusion groove 2231 and the rotating cylinder 2234.

[0028] like Figures 1-3 , Figure 8 , Figure 9 and Figure 10As shown, the dust removal assembly 223 also includes a top rod 22310 and magnetic strips 22311. The top rod 22310 is fixedly installed on the upper part of the side of the filter plate 2215 near the rotating shaft 2214. Two magnetic strips 22311 are symmetrically installed on the side of the filter plate 2215 near the scraper 2239 through strip grooves. The magnetic strips 22311 are magnetically connected to the scraper 2239. It is understood that when the scraper 2239 moves away from the rotating shaft 2214, it is magnetically connected via the magnetic strip 22311, causing the inclined surface of the scraper 2239 to abut against the filter plate 2215, thereby cleaning the dust on the filter plate 2215. When the inclined surface of the scraper 2239 moves away from the surface of the magnetic strip 22311, the scraper 2239 and the rotating rod can be reset by the torsion force of the torsion spring itself. After the scraper 2239 is reset, the inclined surface will move away from the surface of the filter plate 2215, thus preventing the scraper 2239 from squeezing the dust when it moves towards the rotating shaft 2214. When the scraper 2239 moves to the end of the top rod 22310, the top rod 22310 will push the scraper 2239 forward. When the scraper 2239 rotates, it drives the rotating rod to rotate inside the moving seat 2238 and the mounting cylinder. The rotation of the rotating rod will twist the torsion spring. When the scraper 2239 rotates to a specified angle, the inclined surface will be magnetically attracted to the magnetic strip 22311 and abut against the surface of the filter plate 2215. At this time, the reciprocating screw 2237 continues to work, which can drive the scraper 2239 to move downward again to clean the dust on the filter plate 2215. It should be noted that when the gear in the transmission component 2235 rotates to form an arc rack, the scraper 2239 will be located on the upper part of the filter plate 2215, which makes it easier for the scraper 2239 to clean the filter plate 2215 next time.

[0029] like Figure 1 , Figure 2 , Figures 4-13 As shown, the dust removal assembly 223 also includes a wind cup 22312 and a collection box 22316. The wind cup 22312 is movably installed through a sliding hole near the bottom of the lower guide plate 2212 near the positioning plate 2216. A spiral groove 22313 is provided on the inner wall of the sliding hole of the lower guide plate 2212. The two ends of the spiral groove 22313 are connected by a strip groove 22314. A slider 22315 for cooperating with the spiral groove 22313 and the strip groove 22314 is fixedly installed on the surface of the wind cup 22312 near the spiral groove 22313. The collection box 22316 is movably installed on the upper surface of the lower guide plate 2212 and the front of the housing 2211 through an assembly groove. It should be understood that when the lower guide plate 2212 guides air into the housing 2211, the air will cause the air cup 22312 to rotate. As the air cup 22312 rotates, its upper part will rotate within the sliding hole of the lower guide plate 2212. This rotation of the air cup 22312 will cause the slider 22315 to spiral upwards in the spiral groove 22313. The upward spiraling of the slider 22315 will cause the air cup 22312 to slide vertically within the sliding hole of the lower guide plate 2212. This vertical sliding of the air cup 22312 will push the bottom of the filter plate 2215. When the slider 22315 slides to the top of the spiral groove 22313, it will slide into the strip groove 22314. At the top, the filter plate 2215 is reset by the elastic force of the spring 2232. When the filter plate 2215 is reset, it can push the wind cup 22312 and the slider 22315 to slide downward. When the slider 22315 slides to the end of the spiral groove 22313, the air will blow the wind cup 22312 to rotate again. In this way, the wind cup 22312 will slide up and down, which will drive the filter plate 2215 to vibrate. When the filter plate 2215 vibrates, it can shake the dust on the surface onto the lower guide plate 2212, and it will also shake off the dust adhering to the scraper 2239. When the dust falls onto the lower guide plate 2212, it will slide into the collection box 22316 for collection.

[0030] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A ventilation system for improving the environment of underground engineering projects, comprising: A construction channel, wherein an exhaust gas emission module and an air intake module are respectively installed on the top of the inner cavity of the construction channel. The exhaust gas emission module includes several exhaust channels connected to each other at the ends installed on the top of the construction channel, a purification mechanism movably installed at the bottom of the exhaust channel, and an exhaust fan installed outside the exhaust channel. The purification mechanism includes a filter component and a docking component. The filter assembly includes a housing and filter plates. The bottom of the exhaust channel is provided with a housing that runs vertically through it. The left and right sides of the housing are provided with arc-shaped grooves for the filter plates to pass through. A lower guide plate for guiding air into the arc-shaped groove on the right side of the housing is fixedly installed on the bottom inner side of the housing. A rotating shaft is rotatably installed in the middle inner side of the housing. At least four filter plates are installed on the outer surface of the rotating shaft in a circular array. The docking assembly includes slide rails and a dust detection sensor. Two slide rails are symmetrically installed at the center of the bottom of the exhaust channel. A sliding frame is movably installed on the upper part of the box. The two sides of the sliding frame are movably connected between the two slide rails. Cylinders are fixedly installed on both the left and right sides of the box. The output end of the cylinder is fixedly connected to the bottom of the sliding frame. A dust detection sensor for detecting dust inside the construction channel is installed on the back of the exhaust channel. The horizontal movement of the sliding frame within the slide rails can drive the box to move at the bottom of the exhaust channel. When the box moves to a designated position, the cylinder can connect the top of the box with the bottom of the exhaust channel.

2. The ventilation system for improving the environment of underground engineering projects according to claim 1, characterized in that: The exhaust channel includes an air inlet, a sealing door, and a top plate. Multiple air inlets are installed at equal intervals inside each exhaust channel. Two sealing doors are symmetrically rotated and installed on the inner top of each air inlet via a reset component. Sealing components are provided at the connection between the two sealing doors and at the connection between the sealing door and the air inlet. Two top plates are symmetrically slidably connected to the inner side of the air inlet near the sealing door. The two top plates can vertically rotate and open the two sealing doors.

3. The ventilation system for improving the environment of underground engineering projects according to claim 1, characterized in that: The filter assembly also includes an upper guide plate and a positioning plate. The upper guide plate is fixedly installed on the upper part of the inner cavity of the housing, and the positioning plate is rotatably installed on the inner wall of the housing near the lower guide plate through a reset component.

4. A ventilation system for improving the environment of underground engineering projects according to claim 1, characterized in that: The docking assembly also includes a rack and a top block. The rack is fixedly installed at the bottom of the exhaust channel. A matching gear is connected to the side of the rack. The center of the gear is installed on the back of the housing via a drive component. A laser sensor is installed at the front of the housing. The number of targets at the bottom of the exhaust channel is the same as the number of air inlets. Two top blocks that cooperate with the top plate are symmetrically fixedly installed on the top of the inner wall of the housing.

5. A ventilation system for improving the environment of underground engineering projects according to claim 1, characterized in that: The purification mechanism also includes a dust removal component, which includes an extrusion groove and an annular groove. The outer surface of the rotating shaft has four extrusion grooves arranged in an annular array for sliding of the filter plate. The extrusion grooves are connected to the filter plate by springs. The two ends of the rotating shaft near the extrusion grooves each have four mounting grooves arranged in an annular array. A rotating cylinder is rotatably mounted on the inner wall of each of the four mounting grooves. The front and rear sides of the inner wall of the housing have annular grooves. The center of the annular grooves is on the same axis as the center of the rotating shaft. The rotating cylinders are connected to the annular grooves by a transmission component.

6. A ventilation system for improving the environment of underground engineering projects according to claim 5, characterized in that: The dust removal assembly also includes a reciprocating screw, a movable seat, and a scraper. Two reciprocating screws are symmetrically and rotatably mounted on one side of the filter plate via a sliding groove. The top end of the reciprocating screw passes through the filter plate and is slidably connected to the inside of the rotating cylinder with the extrusion groove. The reciprocating screw is rotatably connected to the filter plate, and the reciprocating screw is slidably and rotatably connected to the extrusion groove. The end of the reciprocating screw is axially slidably connected to the rotating cylinder. A movable seat is threaded onto the outer surface of the reciprocating screw. The side of the movable seat is slidably connected to the sliding groove on one side of the filter plate. A scraper is fixedly and rotatably mounted between the two movable seats via a reset component. The side of the scraper that abuts against the filter plate has an inclined surface.

7. A ventilation system for improving the environment of underground engineering projects according to claim 6, characterized in that: The dust removal assembly also includes a top rod and magnetic strips. The top rod is fixedly installed on the upper part of the filter plate near the rotating shaft. Two magnetic strips are symmetrically installed on the side of the filter plate near the scraper through strip grooves. The magnetic strips are magnetically connected to the scraper.

8. A ventilation system for improving the environment of underground engineering projects according to claim 6, characterized in that: The dust removal assembly also includes a wind cup and a collection box. The wind cup is movably installed through a sliding hole near the bottom of the lower guide plate near the positioning plate. A spiral groove is formed on the inner wall of the sliding hole of the lower guide plate. The two ends of the spiral groove are connected by a strip groove. A slider for cooperating with the spiral groove and the strip groove is fixedly installed on the surface of the wind cup near the spiral groove. The collection box is movably installed on the upper surface of the lower guide plate and the front of the box body through an assembly groove.

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