Subway smoke-proof emergency exit and construction method

Abstract

The invention relates to the technical field of subway engineering, and provides a subway smoke-proof emergency exit which comprises an emergency channel, a circulating air duct is arranged at the top of the emergency channel, and a fan used for extracting smoke is arranged in the circulating air duct; a communicating groove communicating with the circulating air duct is formed in the top wall of the safety channel, and the two ends of the communicating groove extend in the length direction of the safety channel. A plurality of mounting frames are mounted on the inner wall of the connecting groove, a plurality of decorative strips are mounted in the mounting frames, and every two adjacent decorative strips are arranged at intervals to form a smoke exhaust gap. According to the subway smoke-proof emergency exit, the smoke-proof effect of the subway emergency exit can be improved. The invention further relates to a construction method of the subway smoke-proof emergency exit.

Description

Technical Field

[0001] The present application relates to the technical field of subway engineering, and in particular to a subway smoke-proof safety exit and a construction method. Background Art

[0002] Subway stations are places where trains stop for urban rail transit systems, used to transport goods or allow passengers to board trains, etc. Subway stations can be built underground, semi-underground, on the ground, or elevated. In subway projects, in order to deal with emergencies such as fires, it is necessary to build additional emergency exits. When emergencies such as fires occur, emergency exits can be used to evacuate people in a timely manner to ensure people's safety.

[0003] In the prior art, subway emergency exits include an underground emergency passage and an entrance and exit connected to the ground, and the emergency passage is connected to the outside world through the entrance and exit; however, during the construction of such subway emergency exits, in order to avoid buildings or roads on the ground, the length of the emergency passage is usually relatively long. When a fire occurs, if the smoke caused by the fire spreads into the emergency passage, it is difficult for people to pass through the narrow and smoke-filled emergency passage, which poses a great threat to the life safety of the evacuated people, and therefore further improvement is needed. Summary of the invention

[0004] In order to improve the smoke-proof effect of subway emergency exits, the present application provides subway smoke-proof emergency exits and construction methods.

[0005] In the first aspect, the subway smoke-proof safety exit provided in this application adopts the following technical solutions: A subway smoke-proof safety exit comprises a safety passage, wherein a ventilation duct is arranged on the top of the safety passage, and a fan for extracting smoke is arranged in the ventilation duct; a connecting groove connected to the ventilation duct is opened on the top wall of the safety passage, and both ends of the connecting groove are extended along the length direction of the safety passage; a plurality of installation frames are installed on the inner wall of the connecting groove, and a plurality of decorative strips are installed in the installation frame, and two adjacent decorative strips are arranged at intervals to form a smoke exhaust gap.

[0006] By adopting the above-mentioned technical scheme, a flow duct connected to the safety passage is set at the top of the safety passage through the setting of connecting grooves and decorative strips. When the smoke generated by a fire reaches the safety passage, the smoke enters the flow duct through the connecting groove and is drawn outward by the fan of the flow duct to discharge the smoke in time; the two ends of the connecting groove are extended along the length direction of the safety passage to improve the efficiency of the smoke entering the flow duct, so that the smoke in the safety passage can enter the flow duct in time, reducing the possibility of smoke accumulation in the safety passage; by setting a plurality of decorative strips, the decorative strips are used to decorate the connecting grooves to improve the aesthetics of the overall structure.

[0007] Optionally, a cooling pipe for conveying cooling water is installed in the air flow duct, and the peripheral wall of the cooling pipe is provided with a plurality of water outlets facing the connecting groove; a rotating shaft is rotatably installed on the inner wall of the installation frame, the decorative strip is fixed to the outer peripheral wall of the rotating shaft, and the decorative strip is rotatably installed on the installation frame via the rotating shaft; the decorative strip is provided with a swinging assembly, and the swinging assembly is used to drive the decorative strip to swing back and forth around the axial direction of the rotating shaft to beat the falling cooling water.

[0008] By adopting the above technical solution, through the arrangement of the cooling pipe and the swinging assembly, when the fire spreads, cooling water is transported through the cooling pipe, and the cooling water can fall to the safety passage through the water outlet to cool the safety passage, reduce the possibility of excessive temperature in the safety passage, and thus improve the safety of the evacuated people through the safety passage; in the process of the cooling water falling, the decorative strip is driven by the swinging assembly to swing back and forth around the axial direction of the rotating shaft, thereby beating the cooling water and dispersing the cooling water, thereby expanding the spraying area of ​​the cooling water, improving the cooling effect of the cooling water on the safety passage, and thus ensuring the personal safety of the evacuated people.

[0009] Optionally, a gear is coaxially connected to the outer peripheral wall of the rotating shaft, and a rack is slidably installed on the mounting frame, and the rack and the gear are meshed for transmission; the swing assembly includes a sliding rod, a connecting rod and a driving member, and the sliding rod is slidably installed on the inner wall of the air flow duct, one end of the connecting rod is hinged to the sliding rod, and the other end is hinged to the rack; the driving member is arranged in the air flow duct, and the driving member is used to drive the sliding rod to rise and fall so that the rack can slide back and forth along its own length direction.

[0010] By adopting the above technical solution, through the setting of the sliding rod, the connecting rod and the driving member, when the decorative strip is driven to swing, the sliding rod is driven to rise and fall reciprocally through the driving member, and the sliding rod pulls the rack through the connecting rod, so that the rack slides back and forth along its own length direction, and the rack and the gear are meshed and transmitted, thereby being able to drive the decorative strip to reciprocate around the axial direction of the rotating shaft, forming a swinging state, so as to beat the falling cooling water, so that the cooling water can be dispersed in the safety channel to increase the spraying range.

[0011] Optionally, the driving component includes a driving rocker arm and a driving motor, one end of the driving rocker arm is hinged to the inner wall of the air flow duct, and the other end is hinged to the sliding rod; the output shaft of the driving motor is connected to an eccentric shaft, the axial direction of the eccentric shaft is eccentrically arranged with the axial direction of the output shaft of the driving motor, the eccentric shaft is rotatably connected to a sliding block, and the side wall of the driving rocker arm is provided with a sliding groove for sliding the sliding block, and both ends of the sliding groove are extended along the length direction of the driving rocker arm.

[0012] By adopting the above-mentioned technical solution, through the setting of the driving rocker arm and the driving motor, the driving motor drives the eccentric shaft to revolve around the central axis of the driving motor output shaft. During the rotation of the eccentric shaft, the slider slides in the slide groove and pushes the inner wall of the slide groove, so that the driving rocker arm can swing, thereby pulling the sliding rod. With the continuous rotation of the driving motor output shaft, the sliding rod can be reciprocated and lifted to pull or push the rack, so that the decorative strip can swing to beat the falling cooling water, thereby improving the convenience of driving the decorative strip to swing.

[0013] Optionally, a sliding seat is fixed to the inner wall of the air flow duct, the sliding seat is provided with a sliding groove, both ends of the sliding groove are extended along the height direction, and the sliding rod is slidably installed in the sliding groove; the sliding rod is normally abutted against the bottom wall of the sliding groove, and when the sliding rod moves upward, the smoke exhaust gap between two adjacent decorative strips gradually expands.

[0014] By adopting the above-mentioned technical solution and setting the sliding seat, the sliding rod is slidably installed on the inner wall of the air flow duct. Under normal circumstances (when no fire occurs), the sliding rod abuts against the bottom wall of the sliding groove. At this time, the smoke exhaust gap between two adjacent decorative strips is smaller, so that the decorative strips can better play a decorative effect. When a fire occurs, the sliding rod is driven to move upward, and the smoke exhaust gap between two adjacent decorative strips is gradually expanded to expand the smoke exhaust gap, so that the smoke in the safety passage can enter the air flow duct in time, thereby improving the efficiency of smoke exhaust to the air flow duct.

[0015] Optionally, a mounting platform is provided in the air flow duct, and a ring-shaped cooling groove is provided on the top wall of the mounting platform. The fan is installed on the top wall of the mounting platform and is located in the cooling groove. The inlet end of the cooling pipe is connected to the cooling groove. The mounting platform is connected to a water supply pipe for supplying cooling water, and the outlet end of the water supply pipe is connected to the cooling groove.

[0016] By adopting the above technical solution, a cooling ring groove is set between the water supply pipe and the cooling pipe through the setting of the mounting platform. When the water supply pipe supplies water, the cooling water first flows to the cooling ring groove, and then enters the cooling pipe from the cooling ring groove. When the cooling water flows to the cooling ring groove, it exchanges heat with the safety platform to cool the mounting platform, thereby reducing the possibility of the fan being damaged by excessive temperature of the mounting platform when a fire occurs, thereby protecting the fan, enabling the fan to continue to operate, and improving the stability of the overall structure.

[0017] Optionally, the inlet end of the water supply pipe is connected to a water reservoir, the water reservoir is used to be installed on the ground, and the top of the water reservoir is provided with a cover plate for opening and closing the water reservoir; the inlet end of the water supply pipe is connected to the bottom wall of the water reservoir and communicated with the interior of the water reservoir, and the water reservoir is provided with an opening and closing part for opening and closing the water supply pipe.

[0018] By adopting the above technical solution, through the setting of the water reservoir and the opening and closing parts, on rainy days, the cover is opened to allow the water reservoir to receive and store rainwater. When a fire occurs, the inlet end of the water supply pipe is opened through the opening and closing parts to utilize the water in the water reservoir, thereby improving the utilization rate of rainwater.

[0019] Optionally, the opening and closing component includes a first partition plate, a second partition plate and a lifting rod, the first partition plate is fixedly installed on the inner wall of the water reservoir, the first partition plate divides the water reservoir into a water storage area and a downstream area, the inlet end of the water supply pipe is connected to the downstream area, and the second partition plate is slidably installed in the water storage area; the first partition plate is provided with a plurality of first water permeable holes penetrating the first partition plate on its surface, the second partition plate is provided with a plurality of second water permeable holes penetrating the second partition plate on its surface, and all the first water permeable holes and all the second water permeable holes are staggered; one end of the lifting rod is connected to the second partition plate, and the other end is connected to the sliding rod, and when the sliding rod abuts against the bottom wall of the sliding groove, the plate surface of the first partition plate and the plate surface of the second partition plate abut against each other.

[0020] By adopting the above-mentioned technical scheme, through the first partition plate, the second partition plate and the lifting rod, under normal conditions, the sliding rod abuts against the bottom wall of the sliding groove, at which time the plate surface of the first partition plate and the plate surface of the second partition plate abut against each other, thereby closing the first water permeable hole and the second water permeable hole, so that the water in the water storage area cannot enter the downstream area, thereby closing the inlet end of the water supply pipe; when a fire occurs, the sliding rod is driven to lift, and the lifting rod can drive the second partition plate to move upward, thereby separating from the first partition plate, and the water in the water storage area can enter the downstream area through the second water permeable hole and the first water permeable hole in turn, and flow from the water supply pipe to the safety passage to cool down the safety passage; on the other hand, during the reciprocating lifting of the sliding rod, the second partition plate is driven to lift and lower, so that the second partition plate is in a moving state, thereby reducing the possibility of foreign matter in the water storage area causing the second water permeable hole to be blocked.

[0021] Optionally, a sewage outlet connected to the water storage area is formed on the side wall of the water storage tank, and a filter net is installed on the top of the water storage area. The filter net gradually decreases in height from the side far from the sewage outlet to the side close to the sewage outlet, and the side of the filter net close to the sewage outlet is connected to the sewage outlet.

[0022] By adopting the above-mentioned technical solution and setting up the filter net, when the cover is opened to allow the water reservoir to receive rainwater, the filter net can filter foreign matter, thereby reducing the possibility of external foreign matter falling into the water reservoir, thereby reducing the possibility of clogging of the water reservoir; after the filter net intercepts the foreign matter, the foreign matter is guided by the inclined filter net and gathered toward one side of the sewage outlet to facilitate the cleaning of the foreign matter.

[0023] In the second aspect, the construction method of the subway smoke-proof safety exit provided by this application adopts the following technical solution: The construction method of the subway smoke-proof safety exit specifically includes the following steps: S1. Construction of the safety passage: construct the safety passage, and reserve a ventilation duct connected to the safety passage at the top of the safety passage; S2. Installation of the installation frame: install multiple installation frames in sequence along the length direction of the connecting groove; S3. Installation of the swing component: install the swing component in the ventilation duct; S4. Installation of the fan: install the fan in the ventilation duct; S5. Installation of cooling pipes and water supply pipes: lay cooling pipes and water supply pipes in the ventilation duct respectively.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the arrangement of the connecting groove and the facing strip, a ventilation duct connected to the safety passage is arranged at the top of the safety passage. When the smoke generated by the fire reaches the safety passage, the smoke enters the ventilation duct through the connecting groove and is drawn outward by the fan of the ventilation duct to discharge the smoke in time. The two ends of the connecting groove are extended along the length direction of the safety passage to improve the efficiency of the smoke entering the ventilation duct, so that the smoke in the safety passage can enter the ventilation duct in time, and the possibility of smoke accumulation in the safety passage is reduced. 2. Through the arrangement of the cooling pipe and the swinging assembly, when a fire occurs, cooling water is transported through the cooling pipe, and the cooling water can fall through the water outlet to the safety passage to cool down the safety passage, reduce the possibility of excessive temperature in the safety passage, and thus improve the safety of the evacuated people through the safety passage; during the falling process of the cooling water, the swinging assembly drives the decorative strip to swing back and forth around the axial direction of the rotating shaft, thereby beating the cooling water and dispersing the cooling water, thereby expanding the spraying area of ​​the cooling water, improving the cooling effect of the cooling water on the safety passage, and thus ensuring the personal safety of the evacuated people; 3. Through the setting of the mounting table, a cooling ring groove is set between the water supply pipe and the cooling pipe. When the water supply pipe supplies water, the cooling water first flows to the cooling ring groove, and then enters the cooling pipe from the cooling ring groove. When the cooling water flows to the cooling ring groove, it exchanges heat with the safety table to cool the mounting table, thereby reducing the possibility of the fan being damaged by excessive temperature of the mounting table when a fire occurs, thereby protecting the fan, enabling the fan to continue to operate, and improving the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of Example 1; Figure 2 is a partial cross-sectional view of the swing assembly of embodiment 1; Figure 3 is a schematic diagram of the structure of the installation frame embodied in Example 1; Figure 4is a partial cross-sectional view of the fan of embodiment 1; Figure 5 is a partial cross-sectional view of the clamping ring of embodiment 1; Figure 6 is a partial cross-sectional view of the mounting groove of embodiment 1; Figure 7 is an exploded schematic diagram of a slider according to Embodiment 1; Figure 8 is an exploded schematic diagram of the chute according to Embodiment 1; Fig. 9 It is a partial cross-sectional view of the opening and closing member of Example 2.

[0026] Explanation of reference numerals: 1. safety passage; 11. connecting groove; 2. air flow duct; 21. fan; 22. cooling pipe; 221. water outlet; 23. sliding seat; 231. sliding groove; 24. mounting table; 241. cooling ring groove; 25. water supply pipe; 3. mounting frame; 31. decorative strip; 311. smoke exhaust gap; 32. rotating shaft; 33. gear; 34. rack; 35. sliding strip; 36. mounting groove; 4. swing assembly; 41. sliding rod; 411. limiting ring; 412. first docking block; 413. second docking block; 414. second pull strip; 42. connecting rod; 421. hinge Block; 43, driving rocker; 431, slide; 432, connecting rod; 44, driving motor; 441, mounting plate; 45, eccentric shaft; 451, slider; 5, water reservoir; 51, cover plate; 52, water storage area; 53, downstream area; 54, sewage outlet; 55, avoidance groove; 55, filter screen; 6, opening and closing member; 61, first partition plate; 611, first water permeable hole; 62, second partition plate; 621, second water permeable hole; 622, embedded groove; 623, sealing ring; 63, lifting rod; 631, first pull rod; 7, clamping ring; 71, inlet and outlet; 72, guide block; 73, guide surface. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-9 This application is described in further detail.

[0028] Embodiment 1: The embodiments of the present application disclose a subway smoke-proof safety exit.

[0029] Reference Figure 1 , Figure 2 The subway smoke-proof safety exit includes a safety passage 1. In this embodiment, a flow duct 2 is arranged on the top of the safety passage 1, and both ends of the flow duct 2 are extended along the length direction of the safety passage 1. A connecting groove 11 is opened on the top wall of the safety passage 1, and the connecting groove 11 is connected to the flow duct 2, and both ends of the connecting groove 11 are extended along the length direction of the safety passage 1.

[0030] Reference Figure 2 , Figure 3 A plurality of mounting frames 3 are installed on the inner wall of the connecting groove 11, and the plurality of mounting frames 3 are arranged in sequence along the length direction of the connecting groove. The mounting frame 3 is set to a rectangular frame structure, and the mounting frame 3 is installed on the inner wall of the connecting groove 11 by bolt fixing; a plurality of decorative strips 31 are installed in each mounting frame 3, and the decorative strips 31 are hollow long strip structures. The length direction of the decorative strips 31 is consistent with the length direction of the connecting groove 11, and the plurality of decorative strips 31 are arranged in sequence along the width direction of the connecting groove 11, and two adjacent decorative strips 31 are spaced apart to form a smoke exhaust gap 311 for smoke to pass through.

[0031] Reference Figure 4 A mounting platform 24 is fixedly installed on the bottom wall of the air flow duct 2, and a fan 21 for extracting smoke is fixedly installed on the top wall of the mounting platform 24. The air inlet end of the fan 21 is connected to the air flow duct 2, and the air outlet end of the fan 21 is used to connect to the outside world; a cooling ring groove 241 is opened on the top wall of the mounting platform 24, and the cooling ring groove 241 is arranged in a ring shape. The fan 21 is located in the cooling ring groove 241. The mounting platform 24 is connected to a water supply pipe 25 for supplying cooling water, and the outlet end of the water supply pipe 25 is connected to the cooling ring groove 241. In this embodiment, the inlet end of the water supply pipe 25 is used for external water supply equipment.

[0032] Reference Figure 2 , Figure 3 , Figure 4 A cooling pipe 22 is installed in the air flow duct 2, and both ends of the cooling pipe 22 are extended along the length direction of the installation channel. The inlet end of the cooling pipe 22 is connected to the installation platform 24 and communicates with the cooling ring groove 241; a plurality of water outlets 221 are opened on the peripheral wall of the cooling pipe 22, and all the water outlets 221 are arranged at intervals along the axial direction of the cooling pipe 22, and each water outlet 221 faces the connecting groove 11 (that is, it is arranged downward); the installation frame 3 is installed with a clamping member for clamping and fixing the cooling pipe 22.

[0033] Reference Figure 2 , Figure 3 , Figure 5 In this embodiment, the clamping member includes a clamping ring 7, which is elastically arranged and fixedly mounted on the top wall of the mounting frame 3, and the clamping ring 7 is located on the side of the mounting frame 3 away from the mounting groove 36. An inlet and outlet 71 is provided on the outer peripheral wall of the clamping ring 7, and the inlet and outlet 71 is arranged upward for the cooling pipe 22 to enter; a guide block 72 is fixedly mounted on the side wall of the clamping ring 7 located at the inlet and outlet 71, and the guide block 72 has a guide surface 73, and the guide surface 73 is used for the cooling pipe 22 to abut against, so as to force the clamping ring 7 to deform and expand the inlet and outlet 71, and the cooling pipe 22 is erected in the air flow duct 2 through the clamping rings 7 of multiple mounting frames 3.

[0034] It should be noted that the number of cooling tubes 22 can be one or more. In the present embodiment, the number of cooling tubes 22 is set to one. When the number of cooling tubes 22 is set to more than one, the multiple cooling tubes 22 are spaced apart along the width direction of the connecting groove 11, and the mounting frame 3 needs to be equipped with multiple clamping rings 7 for clamping and fixing the multiple cooling tubes 22.

[0035] Reference Figure 3 , Figure 5 , Figure 6 A plurality of rotating shafts 32 are rotatably mounted on the inner wall of the mounting frame 3, and the axial direction of the rotating shafts 32 is consistent with the length direction of the connecting groove 11. The plurality of rotating shafts 32 are correspondingly arranged with the plurality of decorative strips 31, and each decorative strip 31 is fixedly mounted on the outer peripheral wall of the rotating shaft 32, and the decorative strip 31 is rotatably mounted on the mounting frame 3 through the rotating shaft 32; a gear 33 is coaxially fixed on the outer peripheral wall of each rotating shaft 32, and a sliding bar 35 is slidably mounted on the top wall of the mounting frame 3, and the two ends of the sliding bar 35 are extended along the width direction of the connecting groove, and the sliding bar 35 can slide along its own length direction; a plurality of racks 34 are fixedly mounted on the bottom wall of the sliding bar 35, and the length direction of the racks 34 is consistent with the length direction of the sliding bar 35, and the plurality of racks 34 are correspondingly arranged with the plurality of gears 33, and each rack 34 is meshed with the corresponding gear 33 for transmission.

[0036] In this embodiment, a mounting groove 36 is provided on the inner wall of the mounting frame 3, and the mounting groove 36 runs through the top wall of the mounting frame 3. All gears 33 and all racks 34 are located in the mounting groove 36. With such a design, the mounting groove 36 is used to provide installation space for the racks 34 and the gears 33, so that all racks 34 and all gears 33 are hidden in the mounting groove 36, thereby improving the aesthetics of the overall structure.

[0037] Reference Figure 1 , Figure 2 A sliding seat 23 is fixedly installed on the inner wall of the air flow duct 2. The sliding seat 23 is installed on the inner wall of the air flow duct 2 by bolts. A plurality of sliding seats 23 are arranged and spaced apart along the length direction of the air flow duct 2. A sliding groove 231 penetrating the sliding seat 23 is opened on the side wall of each sliding seat 23. Both ends of the sliding groove 231 are extended along the height direction. The decorative strip 31 is installed with a swinging assembly 4, which is used to drive the decorative strip 31 to swing back and forth around the axial direction of the rotating shaft 32 to beat the falling cooling water.

[0038] Reference Figure 1 , Figure 2The swing assembly 4 includes a sliding rod 41, a connecting rod 42 and a driving member. Both ends of the sliding rod 41 are extended along the length direction of the air flow duct 2, and the sliding rod 41 is sequentially inserted into the sliding grooves 231 of all the sliding seats 23. The sliding rod 41 is installed with multiple limiting rings 411, which are sleeved on the outer peripheral wall of the sliding rod 41. The limiting rings 411 are detachably installed on the outer peripheral wall of the sliding rod 41 by bolt fixing. The multiple limiting rings 411 are used to be limited on both sides of the sliding seat 23 to limit the sliding direction of the sliding rod 41, so that the sliding rod 41 can only slide along the sliding groove 231 (that is, the sliding rod 41 can only be lifted and lowered), and the sliding rod 41 is slidably installed on the inner wall of the air flow duct 2 through the sliding seat 23.

[0039] Reference Figure 2 , Figure 3 The outer peripheral wall of the sliding rod 41 is sleeved with a plurality of first docking blocks 412, and the plurality of first docking blocks 412 are arranged at intervals along the length direction of the sliding rod 41, and all the first docking blocks 412 are arranged corresponding to all the mounting frames 3, and the first docking blocks 412 are fixed to the outer peripheral wall of the sliding rod 41 by bolts; both ends of the connecting rod 42 are hinged with hinge blocks 421, one of the hinge blocks 421 is installed on the side wall of the sliding bar 35 of the mounting frame 3, and the other hinge block 421 is installed on the side wall corresponding to the first docking block 412, the connecting rod 42 and the first docking block 412, and the connecting rod 42 and the sliding bar 35 are hinged to each other through the hinge block 421, and the hinge block 421 and the first docking block 412, and the hinge block 421 and the sliding bar 35 are detachably connected by bolts.

[0040] Reference Figure 2 , Figure 3 The sliding rod 41 is normally in contact with the bottom wall of the sliding groove 231. When the sliding rod 41 moves upward along the sliding groove 231, the smoke exhaust gap 311 between two adjacent decorative strips 31 gradually expands. The driving member is installed in the air flow duct 2, and the driving member is used to drive the sliding rod 41 to rise and fall so that the rack 34 can slide back and forth along its own length direction.

[0041] Reference Figure 2 , Figure 7 , Figure 8 The outer peripheral wall of the sliding rod 41 is sleeved with a second docking block 413, and the second docking block 413 is fixed to the outer peripheral wall of the sliding rod 41 by bolts; the driving member includes a driving rocker arm 43 and a driving motor 44, one end of the driving rocker arm 43 is hinged to the top wall of the air flow duct 2, and the other end is hinged with a connecting rod 432, and the end of the connecting rod 432 away from the driving rocker arm 43 is hinged to the second docking block 413, and the driving rocker arm 43 and the sliding rod 41 are hinged to each other through the connecting rod 432 and the second docking block 413.

[0042] Reference Figure 7 , Figure 8 The driving motor 44 is installed on the outer wall of the air flow duct 2, and the output shaft of the driving motor 44 extends into the air flow duct 2 and is coaxially fixed with a mounting plate 441. An eccentric shaft 45 is fixedly installed on the surface of the mounting plate 441. The axial direction of the eccentric shaft 45 is eccentrically arranged with the axial direction of the output shaft of the driving motor 44, and a slider 451 is rotatably connected to the outer peripheral wall of one end of the eccentric shaft 45 away from the mounting plate 441. A sliding groove 431 for sliding the slider 451 is provided on the side wall of the driving rocker rod 43 close to the eccentric shaft 45, and both ends of the sliding groove 431 are extended along the length direction of the driving rocker rod 43; it should be noted that the number of driving members is determined according to the length of the safety channel 1 (that is, according to the number of mounting frames 3). When the length of the safety channel 1 exceeds the set range, a plurality of driving members can be arranged in the circulation channel as needed to jointly drive the sliding rod 41 to rise and fall.

[0043] The implementation principle of Example 1 of the present application is as follows: when the smoke caused by the fire reaches the safety passage 1, the smoke flows into the ventilation duct 2 through the smoke exhaust gap 311 and is drawn outward by the fan 21. During this process, the drive motor 44 can be started to drive the drive swing rod 43 to swing a certain angle and then the drive motor 44 can be turned off. The drive swing rod 43 can lift the sliding rod 41 a certain distance, so that the sliding rod 41 can pull all the decorative strips 31 of the installation frame 3 to flip synchronously. After flipping, the smoke exhaust gap 311 between the two adjacent decorative strips 31 is enlarged to improve the smoke exhaust efficiency of the safety passage 1.

[0044] When the fire continues to spread, cooling water is supplied to the cooling ring groove 241 through the water supply pipe 25. The cooling water enters the cooling pipe 22 through the cooling ring groove 241 and falls to the safety passage 1 from the water outlet 221 to cool down the safety passage 1, thereby preventing the temperature in the safety passage 1 from being too high and threatening the personal safety of the evacuated people. On the other hand, the cooling water first passes through the cooling ring groove 241 to cool down the mounting platform 24, thereby reducing the possibility of damage to the fan 21 due to excessive temperature, thereby enabling the fan 21 to maintain the ability to continuously discharge smoke to the outside.

[0045] At the same time, the driving motor 44 can be driven to rotate continuously so that the sliding rod 41 can be repeatedly raised and lowered to drive all the decorative strips 31 to swing back and forth. The swinging decorative strips 31 can slap the falling cooling water to disperse the cooling water, thereby increasing the spraying range of the cooling water on the safety passage 1, thereby improving the cooling effect of the safety passage 1.

[0046] Embodiment 2: The embodiments of the present application disclose a subway smoke-proof safety exit.

[0047] Reference Fig. 9 The difference between the subway smoke-proof safety exit disclosed in the embodiment of the present application and embodiment 1 is that: In this embodiment, the inlet end of the water supply pipe 25 is connected to a water reservoir 5, which is installed on the ground. The top of the water reservoir 5 is open to receive rainwater, and the top wall of the water reservoir 5 is hinged with a cover plate 51 for opening and closing the water reservoir 5; the inlet end of the water supply pipe 25 is connected to the bottom wall of the water reservoir 5 and is connected to the inside of the water reservoir 5; an opening and closing component 6 for opening and closing the water supply pipe 25 is provided in the water reservoir 5.

[0048] Reference Fig. 9 The opening and closing member 6 includes a first partition plate 61, a second partition plate 62 and a lifting rod 63. The plate surfaces of the first partition plate 61 and the second partition plate 62 are both horizontally arranged. The first partition plate 61 is fixedly installed on the inner wall of the water reservoir 5. The first partition plate 61 divides the water reservoir 5 into a water storage area 52 and a downstream area 53. The water storage area 52 is located above the downstream area 53. The inlet end of the water supply pipe 25 is connected to the downstream area 53, and the height of the inlet end of the water supply pipe 25 is higher than the height of the bottom wall of the downstream area 53. The second partition plate 62 is slidably installed on the water storage area 52.

[0049] The first partition plate 61 has a plurality of first water-permeable holes 611 formed on its surface, all of which are evenly distributed along the surface of the first partition plate 61, and each of which is a through hole that penetrates the first partition plate 61; the second partition plate 62 has a plurality of second water-permeable holes 621 formed on its surface, all of which are evenly distributed along the surface of the second partition plate 62, and each of which is a through hole that penetrates the second partition plate 62; and all of the first water-permeable holes 611 and all of the second water-permeable holes 621 are staggered.

[0050] Reference Fig. 9 A plurality of embedding grooves 622 are provided on the lower surface of the second partition plate 62, and all the embedding grooves 622 are arranged corresponding to all the second water-permeable holes 621; a sealing ring 623 is embedded in each embedding groove 622, and the sealing ring 623 is normally partially exposed in the embedding groove 622. When the lower surface of the second partition plate 62 abuts against the upper surface of the first partition plate 61, the sealing ring 623 is deformed and completely embedded in the embedding groove 622.

[0051] Reference Fig. 9The lifting rod 63 is vertically arranged, and the lower end of the lifting rod 63 is fixedly connected to the upper surface of the second partition plate 62. The upper end of the lifting rod 63 is installed with a first pull bar 631, and the first pull bar 631 passes through the water reservoir 5. The side wall of the water storage area 52 is provided with an avoidance groove 55 for the first pull bar 631 to pass through; the outer peripheral wall of the sliding rod 41 is installed with a second pull bar 414, and the second pull bar 414 is vertically arranged. The lower end of the second pull bar 414 is installed on the outer peripheral wall of the sliding rod 41 by bolt fixing, and the upper end of the second pull bar 414 passes through the air flow duct 2 and is connected to the first pull bar 631. In this embodiment, the first pull bar 631 and the lifting rod 63, and the first pull bar 631 and the second pull bar are all connected to each other by bolt fixing. When the sliding rod 41 abuts against the bottom wall of the sliding groove 231, the plate surface of the first partition plate 61 and the plate surface of the second partition plate 62 abut against each other.

[0052] Reference Fig. 9 A sewage outlet 54 connected to the water storage area 52 is provided on the side wall of the water storage tank 5. A filter screen 55 is installed on the top of the water storage area 52. The filter screen 55 is arranged at an incline. The height of the filter screen 55 gradually decreases from the side away from the sewage outlet 54 to the side close to the sewage outlet 54. The side of the filter screen 55 close to the sewage outlet 54 is connected to the sewage outlet 54. It should be noted that in this embodiment, the mounting platform 24 needs to be additionally connected with a spare pipe (not shown in the figure) connected to the cooling ring groove 241. The inlet end of the spare pipe is used for an external water supply equipment, so that when the rainwater in the water storage tank 5 is exhausted, cooling water can be continuously supplied to the cooling ring groove 241 through the spare pipe.

[0053] The implementation principle of Example 2 of the present application is as follows: through the setting of the water reservoir 5, when it rains, the cover 51 is opened to allow the water storage area 52 of the water reservoir 5 to receive rainwater. When a fire occurs, while the sliding rod 41 is driven up and down by the driving motor 44, the sliding rod 41 can push the second partition plate 62 and force the partition plate to move upward to separate from the first partition plate 61. The rainwater in the water storage area 52 can flow to the safety passage 1 through the water supply pipe 25, thereby improving the utilization rate of rainwater.

[0054] When the cover 51 is in the open state, the filter 55 can filter out most of the foreign matter, reducing the possibility of foreign matter falling into the water storage area 52. When small foreign matter passes through the filter 55 and falls on the upper surface of the second partition plate 62, the sliding rod 41 reciprocates and drives the second partition plate 62 to reciprocate. The second partition plate 62 in the moving state can shake off the foreign matter on the upper surface of the second partition plate 62, thereby reducing the possibility of foreign matter clogging the second water permeable hole 621, so that the rainwater in the water storage area 52 can be continuously supplied to the water supply pipe 25.

[0055] Embodiment 3: The embodiments of the present application also disclose a construction method for a subway smoke-proof safety exit.

[0056] The construction method of subway smoke-proof safety exit specifically includes the following steps: S1. Construction of safety passage 1: According to the construction drawings, build the safety passage 1, and reserve a ventilation duct 2 connected to the safety passage 1 at the top of the safety passage 1.

[0057] S2 . Installation of the installation frame 3 : multiple installation frames 3 are installed in sequence along the length direction of the connecting groove 11 .

[0058] S3. Installation of the swing assembly 4: a. Install multiple sliding seats 23 at intervals along the length direction of the air flow duct 2; b. Pass the sliding rod 41 between the multiple sliding seats 23 and limit them through the limiting ring 411; c. Install the connecting rod 42 between the sliding rod 41 and the sliding bar 35; d. Install the driving motor 44 and the driving swing rod 43 in the air flow duct 2 in sequence.

[0059] S4, installation of the fan 21: installing the fan 21 in the air flow duct 2.

[0060] S5. Installation of cooling pipe 22 and water supply pipe 25: The cooling pipe 22 and the water supply pipe 25 are respectively laid in the air flow duct 2.

[0061] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. The subway smoke-proof safety exit is characterized by: The invention comprises a safety passage (1), wherein a ventilation duct (2) is arranged on the top of the safety passage (1), and a fan (21) for extracting smoke is arranged in the ventilation duct (2); a connecting groove (11) connected to the ventilation duct (2) is opened on the top wall of the safety passage (1), and the two ends of the connecting groove (11) are extended along the length direction of the safety passage (1); a plurality of installation frames (3) are installed on the inner wall of the connecting groove, and a plurality of decorative strips (31) are installed in the installation frame (3), and two adjacent decorative strips (31) are arranged at intervals to form a smoke exhaust gap (311).

2. The subway smoke-proof safety exit according to claim 1 is characterized by: A cooling pipe (22) for conveying cooling water is installed in the air flow duct (2), and a plurality of water outlets (221) facing the connecting groove (11) are provided on the peripheral wall of the cooling pipe (22); a rotating shaft (32) is rotatably installed on the inner wall of the installation frame (3), the decorative strip (31) is fixed to the outer peripheral wall of the rotating shaft (32), and the decorative strip (31) is rotatably installed on the installation frame (3) via the rotating shaft (32); the decorative strip (31) is provided with a swinging assembly (4), and the swinging assembly (4) is used to drive the decorative strip (31) to swing back and forth around the axial direction of the rotating shaft (32) to beat the falling cooling water.

3. The subway smoke-proof safety exit according to claim 2 is characterized by: The outer peripheral wall of the rotating shaft (32) is coaxially connected with a gear (33); the mounting frame (3) is slidably mounted with a rack (34); the rack (34) and the gear (33) are meshed for transmission; the swing assembly (4) comprises a sliding rod (41), a connecting rod (42) and a driving member; the sliding rod (41) is slidably mounted on the inner wall of the air flow duct (2); one end of the connecting rod (42) is hinged to the sliding rod (41), and the other end is hinged to the rack (34); the driving member is arranged in the air flow duct (2), and the driving member is used to drive the sliding rod (41) to rise and fall so that the rack (34) can slide back and forth along its own length direction.

4. The subway smoke-proof safety exit according to claim 3 is characterized by: The driving member comprises a driving rocker arm (43) and a driving motor (44); one end of the driving rocker arm (43) is hinged to the inner wall of the air flow duct (2), and the other end is hinged to the sliding rod (41); the output shaft of the driving motor (44) is connected to an eccentric shaft (45); the axial direction of the eccentric shaft (45) is eccentrically arranged with the axial direction of the output shaft of the driving motor (44); the eccentric shaft (45) is rotatably connected to a sliding block (451); a side wall of the driving rocker arm (43) is provided with a sliding groove (431) for the sliding block (451) to slide; and both ends of the sliding groove (431) are extended along the length direction of the driving rocker arm (43).

5. The subway smoke-proof safety exit according to claim 3 is characterized by: A sliding seat (23) is fixed to the inner wall of the air flow duct (2), and the sliding seat (23) is provided with a sliding groove (231). Both ends of the sliding groove (231) are extended in the height direction, and the sliding rod (41) is slidably installed in the sliding groove (231); the sliding rod (41) is normally abutted against the bottom wall of the sliding groove (231), and when the sliding rod (41) moves upward, the smoke exhaust gap (311) between two adjacent decorative strips (31) gradually expands.

6. The subway smoke-proof safety exit according to claim 3 is characterized by: A mounting platform (24) is provided in the air flow duct (2), and a ring-shaped cooling groove (241) is provided on the top wall of the mounting platform (24). The fan (21) is installed on the top wall of the mounting platform (24) and is located in the cooling groove (241), and the inlet end of the cooling pipe (22) is connected to the cooling groove (241); the mounting platform (24) is connected to a water supply pipe (25) for supplying cooling water, and the outlet end of the water supply pipe (25) is connected to the cooling groove (241).

7. The subway smoke-proof safety exit according to claim 6, characterized in that: The inlet end of the water supply pipe (25) is connected to a water reservoir (5), the water reservoir (5) is used to be installed on the ground, and the top of the water reservoir (5) is provided with a cover plate (51) for opening and closing the water reservoir (5); the inlet end of the water supply pipe (25) is connected to the bottom wall of the water reservoir (5) and communicated with the inside of the water reservoir (5), and an opening and closing member (6) for opening and closing the water supply pipe (25) is provided in the water reservoir (5).

8. The subway smoke-proof safety exit according to claim 7, characterized in that: The opening and closing member (6) comprises a first partition plate (61), a second partition plate (62) and a lifting rod (63); the first partition plate (61) is fixedly mounted on the inner wall of the water reservoir (5); the first partition plate (61) divides the water reservoir (5) into a water storage area (52) and a downstream area (53); the inlet end of the water supply pipe (25) is connected to the downstream area (53); the second partition plate (62) is slidably mounted on the water storage area (52); a plurality of second partition plates (62) penetrating the first partition plate (61) are provided on the plate surface of the first partition plate (61); A water-permeable hole (611), a plurality of second water-permeable holes (621) penetrating the second partition plate (62) are provided on the plate surface of the second partition plate (62), and all the first water-permeable holes (611) and all the second water-permeable holes (621) are staggered; one end of the lifting rod (63) is connected to the second partition plate (62), and the other end is connected to the sliding rod (41), and when the sliding rod (41) abuts against the bottom wall of the sliding groove (231), the plate surface of the first partition plate (61) and the plate surface of the second partition plate (62) abut against each other.

9. The subway smoke-proof safety exit according to claim 8, characterized in that: The side wall of the water storage tank (5) is provided with a sewage outlet (54) connected to the water storage area (52); a filter screen (55) is installed on the top of the water storage area (52); the height of the filter screen (55) gradually decreases from a side away from the sewage outlet (54) to a side close to the sewage outlet (54); and the side of the filter screen (55) close to the sewage outlet (54) is connected to the sewage outlet (54).

10. A construction method for a subway smoke-proof safety exit, based on the subway smoke-proof safety exit according to any one of claims 1 to 9, comprising the following steps: S1. Construction of the safety passage (1): construct the safety passage (1), and reserve a ventilation duct (2) connected to the safety passage (1) at the top of the safety passage (1); S2, installation of the installation frame (3): installing a plurality of installation frames (3) in sequence along the length direction of the connecting groove (11); S3, installation of the swing assembly (4): installing the swing assembly (4) in the air flow duct (2); S4, installation of the fan (21): installing the fan (21) in the air duct (2); S5. Installation of cooling pipe (22) and water supply pipe (25): The cooling pipe (22) and the water supply pipe (25) are respectively laid in the air flow duct (2).

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