Prefabricated high-performance components for tunnel emergency passages

Abstract

The present application relates to the technical field of tunnel prefabricated components, specifically to prefabricated high-performance components used in tunnel emergency passages, including a mounting frame fixed to the top of the tunnel emergency passage and near the exhaust port, a powerful fan is provided at one end of the mounting frame, a U-shaped socket is provided at the lower end of the mounting frame, a U-shaped plug board is provided inside the mounting frame and near the socket, a side plug slot is provided on the outer wall of the plug board, a limit block is provided on the outer wall of the mounting frame and near the plug board, and an expansion flap is provided at one end of the plug board away from the powerful fan. The present application provides an expansion flap, blocks smoke with the help of the expansion flap, and sucks smoke into the air outlet passage with the help of a powerful fan, effectively preventing smoke from quickly rushing into the emergency passage, improving the efficiency of escape of people in danger and the effect of avoiding smoke damage by adopting a low posture.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel prefabricated components, and specifically to prefabricated high-performance components used in tunnel emergency passages. Background Art

[0002] The prefabricated components of tunnel emergency passages refer to prefabricated, modular components used in the construction of tunnel emergency passages. These components are usually prefabricated in the factory and then transported to the site for rapid assembly to reduce the construction period, improve construction efficiency and ensure quality. The application of prefabricated components has greatly improved the efficiency and safety of tunnel emergency passage construction. Through modular design, construction workers can complete the construction or renovation of emergency passages in a shorter period of time, while also ensuring that personnel can be evacuated quickly and safely in the event of an emergency.

[0003] In case of a tunnel fire, the high temperature, smoke, and harmful gases generated by the burning of the fire source will have a serious impact on the evacuation of personnel. In the process of a tunnel fire, in order to ensure that personnel can enter the rescue passage from the nearest rescue passage door, they sometimes have to cross the burning area of ​​the fire source. In order to ensure the safety of personnel and shorten the evacuation time, the safety problem of personnel crossing the fire area must be solved. After entering the rescue emergency passage, it is still necessary to reduce the harm of smoke to the human body as much as possible to improve the efficiency of rescue.

[0004] Regarding the above-mentioned related technologies, since the passages inside the tunnel are mostly through-type passages, when a fire occurs in the tunnel, the smoke produced by the burning will quickly spread in the tunnel passages. At the same time, the space of the emergency passage is relatively narrow. After the smoke is poured into the emergency passage from the main tunnel, it is difficult for the escapees to reduce the damage of the smoke to their bodies by leaning down, which in turn causes great harm to the personal safety of the evacuees and increases the difficulty of emergency rescue. Summary of the invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present application provides an assembled high-performance component for use in a tunnel emergency passage, comprising a mounting frame fixed to the top of the tunnel emergency passage and close to the exhaust port, a powerful fan being provided at one end of the mounting frame, a U-shaped plug-in socket being provided at the lower end of the mounting frame, a U-shaped plug-in board being provided inside the mounting frame and close to the plug-in socket, a side plug-in groove being provided on the outer wall of the plug-in board, a limit block being provided on the outer wall of the mounting frame and close to the plug-in board, an expansion flap being provided at one end of the plug-in board away from the powerful fan, and a limit assembly being provided on the inner wall of the plug-in board and close to the expansion flap;

[0006] The limit assembly includes a connecting column rotatably connected to the inside of the plug-in board, one end of the connecting column is provided with a curved top block, the upper end surface of the curved top block abuts against the lower end surface of the expansion flap, a tension spring is provided at the lower end of the curved top block, a top hook is provided inside the plug-in board, one end of the tension spring is connected to the top hook, and a clamping portion is provided inside the plug-in board and near the curved top block;

[0007] The clamping portion includes a clamping groove opened on the outer side wall of the curved top block, a clamping joint is provided in the clamping groove, the clamping joint is clamped with the clamping groove, an elastic crank is provided on the outer side of the clamping joint, a fixing pin is provided at one end of the elastic crank away from the clamping joint, the elastic crank is fixedly connected to the plug-in board through the fixing pin, and the clamping joint abuts against the clamping groove through the elastic crank.

[0008] Furthermore, a top hanging ring is provided at one end of the tension spring, and the top hanging ring is sleeved on the top hook; and a bottom hanging ring is provided at the other end of the tension spring, and the bottom hanging ring is sleeved on the bottom hook.

[0009] Furthermore, a connecting rod is provided on the outer side of the curved top block and near the position of the clamping joint, and a plurality of the clamping joints are evenly distributed along the length direction of the connecting rod, and the plurality of the clamping joints are synchronously displaced by the connecting rod.

[0010] Furthermore, an electromagnet is provided inside the plug board and near the card connector, and a wire is provided on the electromagnet. A plurality of the electromagnets are connected in series through the wire, and the electromagnets in a powered state can attract the card connector.

[0011] Furthermore, a traction assembly is provided at one end of the mounting frame close to the plug-in board, and the traction assembly includes a shell fixed on the outer wall of the mounting frame, a winding shaft is provided inside the shell, a high-strength traction rope is wound around the winding shaft, and a through groove is provided on the mounting frame near the high-strength traction rope, and one end of the high-strength traction rope passes through the through groove and is fixedly connected to the expansion flap.

[0012] Furthermore, a spanner slot is provided at one end of the winding shaft, and a through hole is provided on the outer side of the shell and close to the spanner slot.

[0013] Furthermore, an end telescopic plate is inserted into one end of the expansion flap close to the winding shaft, and the end telescopic plate is slidably connected to the expansion flap.

[0014] A production process for assembled high-performance components used in tunnel emergency passages, comprising the following steps:

[0015] S1. Material selection: select the corresponding steel materials according to the requirements of the design drawings and make preliminary cutting of the steel materials;

[0016] S2. Preliminary processing: Precisely cut and drill the steel according to the design requirements to facilitate subsequent welding and bolt connection, bend the steel according to the design requirements, and then form the structural frame through welding and assembly according to the design requirements to facilitate subsequent installation;

[0017] S3. Secondary processing: heat treatment of the welded steel structure to eliminate internal stress, improve the strength and toughness of the material, and then anti-corrosion treatment of the surface of the steel component to improve the surface strength of the steel component;

[0018] S4. Preliminary assembly: according to the design drawings, install the traction assembly in the mounting frame, the limit assembly in the plug-in board, and the end telescopic plate in the expansion flap to improve the transportation efficiency of the assembled components and the efficiency of on-site construction;

[0019] S5. On-site assembly. Install the components on-site according to the design drawings. First, fix the mounting frame to the top of the emergency passage with fixing bolts, then plug the plug-in board into the inner side of the mounting frame, and then rotate the expansion flap to install it in the plug-in board. Finally, fix the expansion flap with the help of the limit assembly to complete the installation of the prefabricated components used in the tunnel emergency passage.

[0020] Compared with the known prior art, the technical solution provided by this application has the following beneficial effects:

[0021] 1. The present application sets an expansion flap, plugs the plug-in board with the expansion flap into the mounting frame, and makes the expansion flap rotatably connected with the plug-in board. When a fire occurs in the main tunnel and there is a lot of smoke, an angle is formed between the expansion flap and the mounting frame. The expansion flap is used to block the smoke, and the smoke is sucked into the air outlet channel with the help of a powerful fan, which effectively prevents the smoke from quickly rushing into the emergency channel and reduces the possibility of the smoke spreading quickly in the emergency channel. The smoke concentration in the emergency channel is effectively reduced, and the efficiency of the escape of the evacuees is improved, and the effect of avoiding smoke damage by adopting a low posture is improved;

[0022] 2. The present application sets a limit assembly, sets a curved top block inside the plug board, uses the curved top block to press against the expansion flap, uses the elastic crank and the clamping joint to engage with the clamping groove of the curved top block, fixes the curved top block, and then uses the electromagnet to attract the clamping joint to disengage the clamping joint from the clamping groove, and then uses the tension spring to drive the curved top block to rotate, so that the expansion flap can be quickly flipped downward by its own weight, which helps to improve the stability of the expansion flap in the standby state, thereby reducing the possibility of errors and difficulty in unfolding the expansion flap when in use;

[0023] 3. The present application sets a traction component and sets a winding shaft on the outer side wall of the mounting frame. The expansion flap is pulled by means of a high-strength traction rope on the winding shaft, thereby reducing the possibility of excessive flipping of the expansion flap. The angle between the expansion flap and the mounting frame is adjusted by changing the length of the high-strength traction rope to improve the working effect of the expansion flap. At the same time, the high-strength traction rope is used to reset the expansion flap to improve its working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure in standby state in an embodiment of the present application;

[0025] Figure 2 It is a schematic diagram of the working state of the overall structure in the embodiment of the present application;

[0026] Figure 3 This is a schematic diagram of the installation position of the powerful fan in the embodiment of the present application;

[0027] Figure 4 This is a schematic diagram of the connection of the mounting frame in the embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of the structure of the plug board in the embodiment of the present application;

[0029] Figure 6 This is a schematic diagram of the structure of the expansion flap in the embodiment of the present application;

[0030] Figure 7 This is a schematic diagram of the structure of the traction assembly in the embodiment of the present application;

[0031] Figure 8 This is a schematic diagram of the structure of a high-strength traction rope in an embodiment of the present application;

[0032] Fig. 9 This is a schematic diagram of the structure of the limit assembly in the embodiment of the present application;

[0033] Fig.10 This is a schematic diagram of the connection between the clamping portion and the curved top block in the embodiment of the present application;

[0034] Fig.11 This is a schematic diagram of the structure of the clamping portion in the embodiment of the present application;

[0035] Fig.12 Schematic diagram of the structure of the tension spring in the embodiment of the present application.

[0036] In the figure: 1. mounting frame; 11. powerful fan; 12. socket; 13. limit block; 14. through slot; 2. socket plate; 21. side socket slot; 3. expansion flap; 31. end telescopic plate; 4. traction assembly; 41. shell; 42. winding shaft; 43. high-strength traction rope; 44. wrench slot; 45. through hole; 5. limit assembly; 51. connecting column; 52. curved top block; 53. snap-in slot; 54. bottom hook; 55. tension spring; 551. top hanging ring; 552. bottom hanging ring; 56. snap-in part; 561. fixing pin; 562. elastic crank; 563. snap joint; 564. connecting rod; 57. electromagnet; 58. wire; 59. top hook. DETAILED DESCRIPTION

[0037] In order to better understand the above technical solution, Figure 1-12 And specific implementation methods are used to describe the above technical solutions in detail.

[0038] refer to Figures 1 to 6 The present application discloses an assembled high-performance component for use in a tunnel emergency passage, including a mounting frame 1, a powerful fan 11, a socket 12, a limit block 13, a plug plate 2, an expansion flap 3, an end telescopic plate 31, a traction assembly 4 and a limit assembly 5. The mounting frame 1 is configured as a U-shaped structure, and the mounting frame 1 of the U-shaped structure is fixedly installed at the top of the tunnel emergency passage and close to the exhaust port of the air outlet passage. The powerful fan 11 is fixedly installed inside the mounting frame 1 and close to the exhaust port of the air outlet passage. The socket 12 is fixedly installed inside the mounting frame 1 and close to the lower end, and the socket 12 is surrounded by a U-shaped frame on the inner side wall of the mounting frame 1. The limit block 13 is installed on the outer side wall of the mounting frame 1 and away from one end of the powerful fan 11, and the limit block 13 is fixedly connected to the mounting frame 1 by bolts. The plug-in board 2 is set as a U-shaped structure. The plug-in board 2 of the U-shaped structure is installed inside the mounting frame 1 and close to the plug-in seat 12. A side plug-in slot 21 is opened on the outer wall of the plug-in board 2. The plug-in board 2 is installed on the plug-in seat 12 through the side plug-in slot 21, and the plug-in seat 12 is plugged into the side plug-in slot 21 on the outer wall of the plug-in board 2. The expansion flap 3 is installed on the inner side of the plug-in board 2, and the expansion flap 3 is rotatably connected with one end of the plug-in board 2 close to the powerful fan 11. The end telescopic plate 31 is plugged into the inside of the expansion flap 3, and the end telescopic plate 31 is located at the end of the expansion flap 3 away from the powerful fan 11. The end telescopic plate 31 is slidably connected with the expansion flap 3. The traction assembly 4 is installed on the outer wall of the mounting frame 1 and away from the end of the powerful fan 11, and the two groups of traction assemblies 4 are symmetrically distributed about the expansion flap 3. The limit assembly 5 is installed on the inner wall of the mounting frame 1 and close to the traction assembly 4.

[0039] During construction, first fix the powerful fan 11 inside the mounting frame 1 with fixing bolts. Then fix the mounting frame 1 at the top of the tunnel emergency passage with fixing bolts, so that the powerful fan 11 is close to the exhaust port of the air outlet passage, and the socket 12 on the inner side of the mounting frame 1 faces the main passage of the tunnel. The powerful fan 11 can quickly transport the air in the emergency passage to the air outlet passage. After the mounting frame 1 is fixedly installed, the plug-in board 2 with the end telescopic plate 31 is plugged into the socket 12, and the plug-in board 2 is plugged into the socket 12 from the U-shaped opening of the mounting frame 1, and the socket 12 is plugged into the side plug-in groove 21 opened on the outer wall of the plug-in board 2. After the plug-in board 2 is plugged in, the limit block 13 is fixed to the mounting frame 1 by fixing bolts, and the plug-in board 2 is limited and fixed, so that the plug-in board 2 is fixedly connected to the mounting frame 1. After the plug board 2 is fixedly installed, the expansion flap 3 is installed on the inner side of the plug board 2 so that the expansion flap 3 is rotatably connected to the plug board 2. The expansion flap 3 after installation can be stored inside the mounting frame 1, and the lower end surface of the expansion flap 3 is flush with the lower end surface of the plug board 2. The expansion flap 3 is limited by the limit assembly 5 to prevent the expansion flap 3 from turning downward. Then the traction assembly 4 is connected to the expansion flap 3.

[0040] Under normal conditions, the limit assembly 5 is used to prevent the expansion flap 3 from flipping downward. In this state, the expansion flap 3 is stored inside the mounting frame 1. When a fire occurs inside the tunnel and a large amount of smoke is generated, the ventilator inside the tunnel can blow the smoke to the nearest air outlet channel. People inside the tunnel are evacuated through the emergency channel closest to the fire point. The powerful fan 11 inside the emergency channel is turned on synchronously to quickly send the smoke generated by the fire into the air outlet channel to reduce the smoke concentration in the emergency channel. At the same time, the limit assembly 5 releases the restriction on the expansion flap 3, and the expansion flap 3 flips downward. An angle is formed between the expansion flap 3 and the top surface of the emergency channel after flipping. The end telescopic plate 31 inside the expansion flap 3 extends outward to increase the area blocking the smoke. The smoke diffused from the main tunnel to the emergency channel is blocked by the expansion flap 3 and the end telescopic plate 31, and moves upward along the expansion flap 3, and is then quickly sucked into the air outlet channel by the powerful fan 11. It can effectively reduce the smoke density in the emergency passage, reduce the smoke density in the upper layer of the emergency passage, increase the survival rate of the evacuees, and improve the effect of reducing smoke damage by the evacuees through a low posture.

[0041] refer to Figure 2 , Figure 4 , Figure 7 and Figure 8The traction assembly 4 includes a shell 41, a winding shaft 42 and a high-strength traction rope 43. The shell 41 is fixedly mounted on the outer wall of the mounting frame 1 and is away from one end of the powerful fan 11. The winding shaft 42 is mounted inside the shell 41, and the winding shaft 42 is rotatably connected to the shell 41. The high-strength traction rope 43 is wound around the winding shaft 42. A through slot 14 is provided on the inner wall of the mounting frame 1 and close to the high-strength traction rope 43. One end of the high-strength traction rope 43 passes through the through slot 14 and extends to the position of the expansion flap 3. One end of the high-strength traction rope 43 passing through the through slot 14 is fixedly connected to the expansion flap 3. The connection point between the high-strength traction rope 43 and the expansion flap 3 is located at the edge of the expansion flap 3. A wrench slot 44 is provided at one end of the winding shaft 42, and an external wrench can drive the winding shaft 42 to rotate through the wrench slot 44, thereby realizing the retraction and release of the high-strength traction rope 43. A through hole 45 is provided on the outer wall of the housing 41 and near the wrench slot 44. The through hole 45 is coaxial with the wrench slot 44. The external wrench can be directly inserted into the wrench slot 44 after passing through the through hole 45.

[0042] During construction, the winding shaft 42 with the high-strength traction rope 43 is rotated and installed inside the outer shell 41, and then the outer shell 41 is fixedly installed on the outer wall of the mounting frame 1 and close to the through groove 14, one end of the high-strength traction rope 43 is pulled out from the through groove 14, and the pulled-out end of the high-strength traction rope 43 is fixedly connected to the expansion flap 3.

[0043] During the downward flipping of the expansion flap 3, the downwardly moving end of the expansion flap 3 pulls the high-strength traction rope 43, so that the winding shaft 42 unwinds the high-strength traction rope 43, and the high-strength traction rope 43 pulls the expansion flap 3 to fix the angle between the expansion flap 3 and the mounting frame 1, preventing the expansion flap 3 from over-flipping and affecting the gathering and blocking effect of the expansion flap 3 on smoke. And by changing the length of the high-strength traction rope 43, the angle between the expansion flap 3 and the mounting frame 1 is changed, so that the expansion flap 3 can adapt to the height of the emergency passage to ensure its use effect.

[0044] When the expansion flap 3 needs to be reset, the external wrench is inserted into the wrench slot 44 through the through hole 45 on the outer shell 41, and the winding shaft 42 is driven to rotate by rotating the external wrench. The high-strength traction rope 43 is reeled up by the winding shaft 42, and then the downwardly flipped end of the expansion flap 3 is stretched into the mounting frame 1 by the high-strength traction rope 43, and the expansion flap 3 is limited and fixed with the help of the limit assembly 5 to achieve the reset of the expansion flap 3, which is convenient for its normal use next time.

[0045] refer to Figure 5 , Fig. 9 , Fig.10 , Fig.11 and Fig.12The limiting assembly 5 includes a connecting column 51, a curved top block 52, a bottom hook 54, a tension spring 55, a top hanging ring 551, a bottom hanging ring 552, a clamping portion 56, an electromagnet 57, a wire 58 and a top hook 59. The connecting column 51 is fixedly mounted on the side of the curved top block 52, and the two connecting columns 51 are symmetrically distributed about the curved top block 52. The curved top block 52 is mounted inside the plug board 2 through the connecting column 51, and the curved top block 52 is rotatably connected to the plug board 2 through the connecting column 51. The bottom hook 54 is fixedly mounted on the outer side wall of the top of the curve and close to the lower end. The top pull ring is fixedly mounted on one end of the tension spring 55, and the bottom hanging ring 552 is fixedly mounted on the other end of the tension spring 55. The bottom hanging ring 552 at one end of the tension spring 55 is hung on the bottom hook 54 of the curved top block 52. The top hook 59 is fixedly mounted inside the plug board 2 and close to the tension spring 55, and the top hanging ring 551 at one end of the tension spring 55 is hung on the top hook 59. Through the connection between the top hanging ring 551 and the top hook 59, and the connection between the bottom hanging ring 552 and the bottom hook 54, the tension spring 55 can be quickly installed and replaced. When the curved top block 52 abuts against the lower end surface of the expansion flap 3, the tension spring 55 located between the top hook 59 and the bottom hook 54 is in a stretched state. The clamping part 56 is mounted inside the plug board 2 and close to the curved top block 52. The clamping part 56 includes a fixing pin 561, an elastic crank 562, a clamping joint 563 and a connecting rod 564. The fixing pin 561 is fixedly mounted inside the plug board 2 and close to the curved top block 52, and the fixing pin 561 is fixedly connected to the plug board 2. The elastic crank 562 is fixedly mounted on the fixing pin 561, and a plurality of elastic cranks 562 are evenly distributed along the length direction of the fixing pin 561. The clamping joint 563 is fixedly mounted on one end of the elastic crank 562 away from the fixing pin 561. A clamping groove 53 is provided on the outer side wall of the curved top block 52 and near the clamping joint 563, and the clamping joint 563 can be clamped and connected with the clamping groove 53. The elastic crank 562 abuts the clamping joint 563 in the clamping groove 53. The connecting rod 564 is fixedly mounted on one end of the elastic crank 562 near the clamping joint 563. The clamping joint 563 is connected in series through the connecting rod 564, so that multiple clamping joints 563 can be displaced synchronously. The electromagnet 57 is fixedly mounted on the inside of the plug board 2 and near the clamping joint 563, and the wire 58 is fixedly mounted on the electromagnet 57, and multiple electromagnets 57 are connected in series through the wire 58. The electromagnet 57 and the clamping joint 563 in the power-on state attract each other. When the card connector 563 is attracted by the electromagnet 57 in the energized state, the card connector 563 tends to approach the electromagnet 57, thereby driving the elastic crank 562 to bend. When the elastic crank 562 bends, the card connector 563 contacts the electromagnet 57 in the energized state, and at the same time, the card connector 563 disengages from the engaging connection with the engaging slot 53.

[0046] When the expansion flap 3 is stored inside the mounting frame 1 and is in a standby state, the electromagnet 57 is in a power-off state. At this time, the upper end surface of the curved top block 52 abuts against the lower end surface of the expansion flap 3, and the curved top block 52 limits and fixes the expansion flap 3 to prevent the expansion flap 3 from flipping downward. At this time, the distance between the top hook 59 and the bottom hook 54 is at a maximum value, and the tension spring 55 is in a stretched state. At the same time, since the electromagnet 57 is in a power-off state, the clamping joint 563 is clamped inside the clamping groove 53 under the action of the elastic crank 562. When the clamping joint 563 is clamped in the clamping groove 53, the curved top block 52 cannot rotate, and the expansion flap 3 abutting against the curved top block 52 cannot flip downward.

[0047] When the expansion flap 3 needs to be flipped downward, the power supply energizes the electromagnet 57 through the wire 58. Since the electromagnets 57 are connected in series through the wire 58, multiple electromagnets 57 are in the energized state at the same time. The electromagnet 57 in the energized state will attract the clamping joint 563. After being attracted by the electromagnet 57, the clamping joint 563 will move in the direction of the electromagnet 57, thereby causing the elastic crank 562 to deform and bend. When the clamping joint 563 is separated from the clamping connection with the clamping groove 53, the tension spring 55 will pull the bottom hook 54 to rotate the curved top block 52 downward, thereby causing the curved top block 52 to be separated from the contact with the expansion flap 3. After the limit is released, the expansion flap 3 will flip downward, forming an angle between the expansion flap 3 and the mounting frame 1.

[0048] A production process for assembled high-performance components used in tunnel emergency passages, comprising the following steps:

[0049] S1. Material selection: select the corresponding steel materials according to the requirements of the design drawings and make preliminary cutting of the steel materials;

[0050] S2. Preliminary processing: Precisely cut and drill the steel according to the design requirements to facilitate subsequent welding and bolt connection, bend the steel according to the design requirements, and then form the structural frame through welding and assembly according to the design requirements to facilitate subsequent installation;

[0051] S3. Secondary processing: heat treatment of the welded steel structure to eliminate internal stress, improve the strength and toughness of the material, and then anti-corrosion treatment of the surface of the steel component to improve the surface strength of the steel component;

[0052] S4. Preliminary assembly: according to the design drawings, install the traction assembly 4 in the mounting frame 1, install the limit assembly 5 in the plug-in board 2, and install the end telescopic plate 31 in the expansion flap 3 to improve the transportation efficiency of the assembled components and the efficiency of on-site construction;

[0053] S5. On-site assembly. Install the components on-site according to the design drawings. First, fix the mounting frame 1 on the top of the emergency passage with fixing bolts, then plug the plug-in board 2 into the inner side of the mounting frame 1, and then rotate the expansion flap 3 to install it in the plug-in board 2. Finally, fix the expansion flap 3 with the help of the limiting assembly 5 to complete the installation of the prefabricated components used in the tunnel emergency passage.

[0054] The working principle of the embodiment of this application:

[0055] When it is necessary to prevent the smoke in the tunnel from spreading into the emergency passage in large quantities, the powerful fan 11 in the mounting frame 1 is started, and the electromagnet 57 inside the plug board 2 is energized at the same time. The electromagnet 57 in the energized state attracts the clamping joint 563 in the clamping groove 53, causing the clamping joint 563 to disengage from the clamping groove 53, and deforming the elastic crank 562. At the moment when the clamping joint 563 disengages from the clamping groove 53, the tension spring 55 pulls the bottom hook 54 on the outer wall of the curved top block 52, causing the curved top block 52 to rotate, thereby causing the curved top block 52 to disengage from the abutment with the expansion flap 3. The expansion flap 3 flips downward, and the high-strength traction rope 43 is unwound along with the expansion flap 3, so that an angle is formed between the expansion flap 3 and the mounting frame 1, and the end telescopic plate 31 extends from the expansion flap 3. The smoke from the main tunnel merging into the emergency passage is blocked by the expansion flap 3 and the end telescopic plate 31, and is sucked into the air outlet passage by the powerful fan 11, thereby reducing the smoke concentration in the emergency passage;

[0056] After the work is completed, the high-strength traction rope 43 is put into the outer shell 41 by rotating the winding shaft 42, and then the expansion flap 3 is pulled into the mounting frame 1, the power supply of the electromagnet 57 is disconnected, and then the curved top block 52 is rotated to make the clamping joint 563 engage in the clamping groove 53, so that the curved top block 52 abuts against the lower end surface of the expansion flap 3, and the expansion flap 3 is in standby state again.

[0057] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. The assembled high-performance component used in tunnel emergency passages is characterized by: The invention comprises a mounting frame (1) fixed at the top of a tunnel emergency passage and close to an exhaust port, a powerful fan (11) being provided at one end of the mounting frame (1), a U-shaped plug socket (12) being provided at the lower end of the mounting frame (1), a U-shaped plug board (2) being provided inside the mounting frame (1) and close to the plug socket (12), a side plug slot (21) being provided on the outer wall of the plug board (2), a limit block (13) being provided on the outer wall of the mounting frame (1) and close to the plug board (2), an expansion flap (3) being provided at one end of the plug board (2) away from the powerful fan (11), and a limit assembly (5) being provided on the inner wall of the plug board (2) and close to the expansion flap (3); The limiting assembly (5) comprises a connecting column (51) rotatably connected to the inside of the plug board (2); one end of the connecting column (51) is provided with a curved top block (52); the upper end surface of the curved top block (52) abuts against the lower end surface of the expansion flap (3); a tension spring (55) is provided at the lower end of the curved top block (52); a top hook (59) is provided inside the plug board (2); one end of the tension spring (55) is connected to the top hook (59); and a clamping portion (56) is provided inside the plug board (2) and close to the curved top block (52); The clamping portion (56) comprises a clamping groove (53) formed on the outer side wall of the curved top block (52); a clamping joint (563) is provided in the clamping groove (53); the clamping joint (563) is clamped with the clamping groove (53); an elastic crank (562) is provided on the outer side of the clamping joint (563); a fixing pin (561) is provided at one end of the elastic crank (562) away from the clamping joint (563); the elastic crank (562) is fixedly connected to the plug board (2) via the fixing pin (561); and the clamping joint (563) abuts against the inside of the clamping groove (53) via the elastic crank (562).

2. The assembled high-performance component for use in tunnel emergency passages according to claim 1 is characterized in that: One end of the tension spring (55) is provided with a top hanging ring (551), and the top hanging ring (551) is sleeved on the top hook (59); the other end of the tension spring (55) is provided with a bottom hanging ring (552), and the bottom hanging ring (552) is sleeved on the bottom hook (54).

3. The assembled high-performance component for use in a tunnel emergency passage according to claim 2 is characterized in that: A connecting rod (564) is provided on the outside of the curved top block (52) and close to the clamping joint (563); a plurality of the clamping joints (563) are evenly distributed along the length direction of the connecting rod (564); and the plurality of the clamping joints (563) are synchronously displaced via the connecting rod (564).

4. The assembled high-performance component for use in a tunnel emergency passage according to claim 3 is characterized in that: An electromagnet (57) is provided inside the plug board (2) and near the card connector (563). A wire (58) is provided on the electromagnet (57). A plurality of the electromagnets (57) are connected in series via the wire (58). When powered on, the electromagnets (57) and the card connector (563) attract each other.

5. The assembled high-performance component used in tunnel emergency passage according to claim 1 is characterized in that: A traction assembly (4) is provided at one end of the mounting frame (1) close to the plug board (2), the traction assembly (4) comprising a shell (41) fixed to the outer wall of the mounting frame (1), a winding shaft (42) is provided inside the shell (41), a high-strength traction rope (43) is wound around the winding shaft (42), a through slot (14) is provided on the mounting frame (1) at a position close to the high-strength traction rope (43), one end of the high-strength traction rope (43) passes through the through slot (14) and is fixedly connected to the expansion flap (3).

6. The assembled high-performance component used in tunnel emergency passage according to claim 5 is characterized in that: A spanner slot (44) is provided at one end of the winding shaft (42), and a through hole (45) is provided on the outside of the housing (41) and close to the spanner slot (44).

7. The assembled high-performance component used in tunnel emergency passage according to claim 6 is characterized in that: An end telescopic plate (31) is inserted into one end of the expansion flap (3) close to the winding shaft (42), and the end telescopic plate (31) is slidably connected to the expansion flap (3).

8. A production process for assembled high-performance components used in tunnel emergency passages based on claim 7, characterized in that: The following steps are included: S1. Material selection: select the corresponding steel materials according to the requirements of the design drawings and make preliminary cutting of the steel materials; S2. Preliminary processing: Precisely cut and drill the steel according to the design requirements to facilitate subsequent welding and bolt connection, bend the steel according to the design requirements, and then form the structural frame through welding and assembly according to the design requirements to facilitate subsequent installation; S3. Secondary processing: heat treatment of the welded steel structure to eliminate internal stress, improve the strength and toughness of the material, and then anti-corrosion treatment of the surface of the steel component to improve the surface strength of the steel component; S4. Preliminary assembly: according to the design drawings, the traction assembly (4) is installed in the mounting frame (1), the limit assembly (5) is installed in the plug-in board (2), and the end telescopic plate (31) is installed in the expansion flap (3), so as to improve the transportation efficiency of the assembled components and improve the efficiency of on-site construction; S5. On-site assembly: The components are installed on-site according to the design drawings. First, the mounting frame (1) is fixed to the top of the emergency passage by fixing bolts, and then the plug-in board (2) is plugged into the inner side of the mounting frame (1). Then, the expansion flap (3) is rotated and installed in the plug-in board (2). Finally, the expansion flap (3) is fixed with the help of the limit assembly (5), and the installation of the assembled components used in the tunnel emergency passage is completed.

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