A narrow space fast-mounting air pipe for subway station and a mounting method thereof

Abstract

The application relates to the field of air pipe installation, in particular to a narrow-space quick-mounting air pipe for a subway station and a mounting method, which comprises a plurality of pipe bodies, one end of the pipe body in the length direction is provided with a mounting ring plate, the other end of the pipe body in the length direction is provided with a mounting ring groove, in the two adjacent pipe bodies, the mounting ring plate on one pipe body is arranged in the mounting ring groove on the other pipe body; the mounting ring plate is provided with a fixing piece for fixing the two adjacent pipe bodies, the fixing piece is arranged in a sliding mode along the thickness direction of the mounting ring plate, the mounting ring plate is provided with a first fixing through groove for the sliding of the fixing piece, the inner wall of the mounting ring groove is provided with a second fixing through groove for the penetration of the fixing piece, when the mounting ring plate is arranged in the corresponding mounting ring groove, the fixing piece is slid from the first fixing through groove to be simultaneously arranged in the first fixing through groove and the second fixing through groove, and the mounting ring plate is provided with a driving assembly for driving the sliding of the fixing piece. The application has the effect of improving the installation efficiency of the air pipe.

Description

Technical Field

[0001] This application relates to the field of duct installation, and in particular to a quick-installation duct for confined spaces in subway stations and an installation method thereof. Background Technology

[0002] To ensure proper air circulation within subway stations during operation, ventilation ducts are installed. These ducts are pipes used for air transport within a building. They are typically located above the train tracks on the subway platform, suspended from the platform ceiling and oriented towards the platform to allow airflow. Because ducts are usually quite long, they are constructed from multiple unit pipes installed together, with adjacent unit pipes connected by flanges.

[0003] Regarding the aforementioned technologies, the inventors believe that due to the limited space for installing ventilation ducts in subway stations, installing each unit duct via flanges is cumbersome and inefficient. Summary of the Invention

[0004] To improve the installation efficiency of ventilation ducts, this application provides a quick-installation ventilation duct for confined spaces in subway stations and an installation method thereof.

[0005] Firstly, this application provides a quick-installation ventilation duct for confined spaces in subway stations, employing the following technical solution:

[0006] A quick-installation ventilation duct for confined spaces in subway stations includes multiple ducts. A mounting plate and multiple U-shaped plates for supporting the ducts are fixedly installed on the ceiling of the platform. The multiple U-shaped plates are arranged along the length of the mounting plate. The ducts are located on the U-shaped plates. A mounting ring plate is provided at one end of the duct along its length, and a mounting ring groove is opened at the other end of the duct along its length. In two adjacent ducts, the mounting ring plate on one duct passes through the mounting ring groove on the other duct.

[0007] Each side plate of the mounting ring plate is provided with a fixing member for fixing two adjacent pipes. The fixing member is slidably disposed along the thickness direction of the mounting ring plate. The mounting ring plate has a first fixing groove for the fixing member to slide, and a second fixing groove is provided on the inner wall of the mounting ring groove for the fixing member to pass through. When the mounting ring plate passes into the corresponding mounting ring groove, the fixing member slides from the first fixing groove to be simultaneously located in the first fixing groove and the second fixing groove. The mounting ring plate is provided with a driving component for driving the fixing member to slide.

[0008] By adopting the above technical solution, when installing the pipe body, the pipe body is placed on the U-shaped plate. When installing two adjacent pipe bodies, the mounting ring plate is aligned with the mounting ring groove, and then the mounting ring plate is inserted into the mounting ring groove. At this time, the fixing component is driven by the drive assembly and inserted into the second fixing through groove, so that the fixing component is simultaneously located in the first fixing through groove and the second fixing through groove, thereby realizing the installation and fixing between two adjacent pipe bodies without the need for fixing by flange, which is convenient and improves the installation efficiency of air duct.

[0009] Optionally, the driving assembly includes a driving block and a driving gear. The driving block is slidably disposed on the inner wall of the mounting ring groove along the thickness direction of the mounting ring plate. A first driving through groove for the driving block to slide is provided on the inner wall of the mounting ring groove. A second driving through groove for the driving block to pass through is provided on the mounting ring plate. A driving spring is provided on the driving block. The driving spring applies a force to the driving block to move towards the second driving through groove. When the mounting ring plate passes into the corresponding mounting ring groove, the driving block passes from the first driving through groove into the second driving through groove.

[0010] The mounting ring plate has a receiving chamber for accommodating the drive gear. The receiving chamber is connected to the first fixed through slot and the second drive through slot. The drive gear is rotatably disposed in the receiving chamber, and the teeth of the drive gear extend out of the receiving chamber. A drive rack is disposed on the side of the drive block near the drive gear. The drive rack meshes with the drive gear. The fixing member is a fixing rack. The tooth surface of the fixing member is located on the side near the drive block. The tooth surface of the fixing member meshes with the drive gear. The fixing member and the drive rack are located on opposite sides of the drive gear in the radial direction.

[0011] By adopting the above technical solution, after the mounting ring plate is inserted into the mounting ring groove, when the first drive through groove and the second drive through groove are aligned, under the action of the drive spring, the drive block drives the drive rack to enter the second drive through groove. The drive rack and the drive gear gradually mesh and drive the drive gear to rotate. The rotation of the drive gear drives the fixing member to slide, so that the fixing member slides from the first fixing through groove to be simultaneously located in the first fixing through groove and the second fixing through groove.

[0012] Optionally, the driving block has a clearance slope on the side away from the fixing member, and the clearance slope is located close to the first fixing groove on the side away from the first driving groove.

[0013] By adopting the above technical solution, when the mounting ring plate contacts the clearance slope of the drive block, the drive spring is compressed. When the first drive through groove and the second drive through groove are aligned, the drive block can automatically pass into the second drive through groove under the action of the drive spring.

[0014] Optionally, the drive rack is slidably mounted on the drive block, and the drive rack slides towards or away from the drive gear. The drive block is provided with a groove for the drive rack to slide. A push spring is provided on the drive rack, and the push spring applies a force to the drive rack to make the push spring slide away from the drive gear. A locking component is provided on the drive rack, and the locking component is used to fix the drive rack in a position that can mesh with the drive gear. The fixing component is provided with an unlocking component for unlocking. When the fixing component slides into the second fixing through groove, the unlocking component moves and releases the locking component from fixing the drive rack. The spring strength of the push spring is greater than the frictional force between the drive rack and the drive gear.

[0015] By adopting the above technical solution, during the process of the mounting ring plate being inserted into the mounting ring groove, the locking component fixes the drive rack in a position that can mesh with the drive gear, so that the drive rack can drive the fixing part to slide through the drive gear. When the fixing part slides into the second fixing through groove, the unlocking component moves and releases the locking component from fixing the drive rack. At this time, under the action of the push spring, the drive rack moves in a direction away from the drive gear, and the drive rack disengages from the drive gear. This reduces the possibility of the fixing part being guided out of the second fixing through groove due to the instability of the drive spring, thereby improving the tightness and stability of the installation between two adjacent pipes.

[0016] Optionally, the locking assembly includes a locking rod and a locking spring. The drive block has a receiving groove for accommodating the locking rod, and the drive rack has a locking groove for the locking rod to pass through. The locking spring is connected to the locking rod through a connecting plate. The locking spring applies a force to the locking rod, causing it to slide towards the locking groove. During the process of the mounting ring plate passing through the mounting ring groove, the locking rod is located in the locking groove, allowing the drive rack to mesh with the drive gear. When the fixing member passes through the second fixing through groove, the locking rod slides out of the locking groove under the action of the unlocking member.

[0017] By adopting the above technical solution, during the process of the mounting ring plate being inserted into the mounting ring groove, the locking rod is located in the locking groove under the action of the locking spring, so that the drive rack can mesh with the drive gear. When the fixing member is inserted into the second fixing through groove, the locking rod slides to disengage from the locking groove under the action of the unlocking member. At this time, under the action of the pushing spring, the drive rack moves in a direction away from the drive gear, and the drive rack disengages from the drive gear.

[0018] Optionally, the unlocking component is an unlocking rod, which is bent. One end of the unlocking rod is connected to or detached from the fixing component, and the other end of the unlocking rod is in contact with the locking rod. The locking rod has an unlocking ramp on the side near the unlocking rod, and the end of the unlocking ramp away from the unlocking rod is located near the locking groove. The spring force of the driving spring is greater than that of the locking spring.

[0019] By adopting the above technical solution, when the fixing member slides toward the second fixing groove, it drives the unlocking rod to slide toward the direction closer to the locking rod. Under the action of the unlocking inclined surface, the unlocking rod and the unlocking inclined surface abut together and drive the locking rod to slide away from the locking groove until the locking rod disengages from the locking groove.

[0020] Optionally, a reset rod is connected to one side of the drive rack near the first drive through groove. The reset rod slides together with the drive rack. The end of the reset rod away from the drive rack passes into the drive block. The drive block has a clearance groove for the reset rod to slide.

[0021] By adopting the above technical solution, when it is necessary to disassemble two adjacent pipes, the drive rack is slid back to its original position in the direction closer to the drive by the reset rod, and then the fixing member is pushed out of the second fixing slot by the second fixing slot. The fixing member drives the unlocking rod to slide away from the locking rod, so that the unlocking rod is disengaged from the locking rod. The locking rod automatically enters the locking slot under the action of the locking spring, so that the drive rack is fixed again in a position that can mesh with the drive gear. Then, the reset rod is pulled, which drives the drive rack and the drive block to slide away from the second drive slot at the same time until they are disengaged from the second drive slot, so that the two adjacent pipes can be disassembled.

[0022] Optionally, a positioning ring plate is provided on the side of the mounting ring plate near the bottom wall of the mounting ring groove, and a positioning ring groove is provided on the bottom wall of the mounting ring groove for the positioning ring plate to pass through. A magnetic suction element is provided on the side of the positioning ring plate away from the first fixed edge, and a suction element is provided on the bottom wall of the positioning ring groove. The magnetic suction element and the suction element are used in conjunction.

[0023] By adopting the above technical solution, when installing two adjacent pipes, during the process of inserting the mounting ring plate into the mounting ring groove, the positioning ring plate is also inserted into the positioning ring groove. The magnetic suction component and the suction-bearing component work together to achieve the effect of pre-positioning and fixing the two adjacent pipes, which facilitates the disassembly and assembly of the pipes.

[0024] Optionally, a strip-shaped dovetail block is provided on the top surface of the tube body, and a dovetail groove is provided on the bottom surface of the mounting plate for the dovetail block to pass through. The dovetail groove passes through one end of the mounting plate along its length, and a baffle is provided at the end through which the dovetail groove is passed. The baffle is installed on the mounting plate by screws, and the dovetail blocks of two adjacent tube bodies abut against each other. The baffle abuts against the dovetail block furthest from the bottom wall of the dovetail groove.

[0025] By adopting the above technical solution, when installing the duct, the dovetail block is inserted into the dovetail groove along the dovetail groove. The innermost dovetail block and the inner bottom wall of the dovetail groove are abutted and limited. After all the ducts are installed, the baffle is fixedly installed on the mounting plate. Thus, the inner wall of the dovetail groove and the baffle fix the duct sections of the air duct. The dovetail block and the dovetail groove provide positioning and guidance for the installation of the duct.

[0026] Secondly, the installation method provided in this application adopts the following technical solution:

[0027] S1. Formal installation: Insert the dovetail block along the dovetail groove and slide several tubes onto the mounting plate in sequence, so that the mounting ring plate is inserted into the corresponding positioning ring groove. Under the action of the driving component, the fixing component automatically passes from the first fixing through groove into the second fixing through groove to fix two adjacent tubes.

[0028] S2. Fixing the baffle: After all the pipes are installed on the mounting plate, the baffle is fixed to the mounting plate with screws to finally fix the entire duct.

[0029] By adopting the above technical solution, when installing each section of the duct, the duct body can be installed sequentially onto the mounting plate and then mated together. The operation is convenient and quick, improving the installation efficiency of the duct.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. When installing the pipe body, place the pipe body on the U-shaped plate. When installing two adjacent pipe bodies, align the mounting ring plate with the mounting ring groove, and then insert the mounting ring plate into the mounting ring groove. At this time, the fastener is driven by the drive assembly and inserted into the second fixing through groove, so that the fastener is simultaneously located in the first fixing through groove and the second fixing through groove, thereby realizing the installation and fixation between two adjacent pipe bodies without the need for flange fixation. The operation is convenient and improves the installation efficiency of the air duct.

[0032] 2. During the process of the mounting ring plate being inserted into the mounting ring groove, the locking component fixes the drive rack in a position that can mesh with the drive gear, so that the drive rack can drive the fixing part to slide through the drive gear. When the fixing part slides into the second fixing through groove, the unlocking component moves and releases the locking component from fixing the drive rack. At this time, under the action of the push spring, the drive rack moves away from the drive gear and disengages from the drive gear. This reduces the possibility of the fixing part being disengaged from the second fixing through groove due to the instability of the drive spring, thereby improving the tightness and stability of the installation between two adjacent pipes.

[0033] 3. When installing two adjacent pipes, during the process of inserting the mounting ring plate into the mounting ring groove, the positioning ring plate is also inserted into the positioning ring groove. The magnetic suction component and the suction-bearing component work together to achieve the effect of pre-positioning and fixing the two adjacent pipes, which facilitates the disassembly and assembly of the pipes. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a quick-installation ventilation duct for confined spaces in a subway station, according to an embodiment of this application.

[0035] Figure 2 This is a schematic diagram of the structure used to display the dovetail block after the baffle is hidden in the embodiment of this application.

[0036] Figure 3 This is a structural schematic diagram of the positioning ring plate and the magnetic suction component used in the embodiments of this application.

[0037] Figure 4 This is a cross-sectional structural diagram of the fixing member and the drive assembly used in the embodiments of this application (the state is that the drive rack has slid to the point of disengaging from the drive gear).

[0038] Figure 5 This is a cross-sectional structural diagram of the locking component used in the embodiments of this application (the state is that the drive rack has slid to the point of disengagement from the drive gear).

[0039] Figure 6 This is a cross-sectional structural diagram of the first limiting block and the second limiting block in the embodiments of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Pipe body; 11. Ventilation opening; 2. Ceiling; 21. Mounting plate; 211. Dovetail block; 212. Dovetail groove; 213. Baffle; 22. U-shaped plate; 23. Diagonal brace; 3. Mounting ring plate; 31. First fixing through groove; 32. Second driving through groove; 4. Mounting ring groove; 41. Second fixing through groove; 42. First driving through groove; 5. Positioning ring plate; 51. Positioning ring groove; 52. Magnetic suction component; 53. Attached component; 6. Fixing component; 61. First limiting block; 62. ... 7. Limiting groove; 7. Drive assembly; 71. Drive block; 711. Second limiting block; 712. Second limiting groove; 713. Slide groove; 714. Relief groove; 72. Drive gear; 721. Receiving chamber; 73. Drive spring; 74. Drive rack; 741. Push spring; 742. Push plate; 743. Push groove; 744. Locking groove; 745. Reset rod; 8. Locking assembly; 81. Locking rod; 82. Locking spring; 821. Connecting plate; 9. Unlocking component; 91. Unlocking groove. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0042] This application discloses a quick-installation ventilation duct for use in confined spaces in subway stations.

[0043] Reference Figure 1 The quick-installation ventilation duct for confined spaces in subway stations comprises multiple duct bodies 1. A mounting plate 21 and multiple U-shaped plates 22 for supporting the duct bodies 1 are fixedly installed on the ceiling 2 of the platform. The length of the mounting plate 21 and the number of U-shaped plates 22 are determined according to the required number of duct bodies 1. A diagonal brace 23 is installed above the platform screen door, and the ventilation duct is located to the right of the diagonal brace 23. Multiple U-shaped plates 22 are fixedly installed at equal intervals along the length of the mounting plate 21, with the duct bodies 1 positioned on the U-shaped plates 22, and the bottom surface of the duct body 1 abutting against the top surface of the horizontal section of the U-shaped plate 22. Before installing the ventilation duct, the mounting plate 21 and U-shaped plates 22 are fixed to the ceiling 2 using screws. Ventilation openings 11 are provided on the side of the duct body 1 closest to the platform for pedestrian waiting.

[0044] Reference Figure 2 and Figure 3One end of the tube body 1 along its length is provided with a mounting ring plate 3, and the other end of the tube body 1 along its length is provided with a mounting ring groove 4. In two adjacent tube bodies 1, the mounting ring plate 3 on one tube body 1 passes through the mounting ring groove 4 on the other tube body 1. A positioning ring plate 5 is provided on the side of the mounting ring plate 3 near the bottom wall of the mounting ring groove 4. A positioning ring groove 51 is provided on the bottom wall of the mounting ring groove 4 for the positioning ring plate 5 to pass through. A magnetic suction element 52 is provided on the side of the positioning ring plate 5 away from the first fixed edge. A attracted element 53 is provided on the bottom wall of the positioning ring groove 51. The magnetic suction element 52 and the attracted element 53 are used in conjunction. In this embodiment, the magnetic suction element 52 is a magnet, and the attracted element 53 is an iron sheet. When installing two adjacent pipes 1, during the process of inserting the mounting ring plate 3 into the mounting ring groove 4, the positioning ring plate 5 is also inserted into the positioning ring groove 51. The magnetic suction component 52 and the suction-bearing component 53 work together to achieve the effect of pre-positioning and fixing the two adjacent pipes 1, which facilitates the disassembly and assembly of the pipes 1.

[0045] Reference Figure 2 and Figure 3 A strip-shaped dovetail block 211 is provided on the top surface of the tube body 1. A dovetail groove 212 is provided on the bottom surface of the mounting plate 21 for the dovetail block 211 to pass through. The dovetail groove 212 passes through one end of the mounting plate 21 along its length. A baffle 213 is provided at the end through which the dovetail groove 212 is passed. The baffle 213 is installed on the mounting plate 21 by screws. The dovetail blocks 211 of two adjacent tube bodies 1 abut against each other. The baffle 213 abuts against the dovetail block 211 furthest from the bottom wall of the dovetail groove 212. When installing the duct body 1, insert the dovetail block 211 into the dovetail groove 212 along the dovetail groove 212. The innermost dovetail block 211 and the inner bottom wall of the dovetail groove 212 abut and limit the movement. After all the duct bodies 1 are installed, fix the baffle 213 onto the mounting plate 21. Thus, the inner wall of the dovetail groove 212 and the baffle 213 fix the duct body 1 of each section of the air duct. The dovetail block 211 and the dovetail groove 212 provide positioning and guidance for the installation of the duct body 1.

[0046] Reference Figure 3 , Figure 4 and Figure 5 Each side plate of the mounting ring plate 3 is provided with three fixing members 6 for fixing two adjacent pipe bodies 1. The three fixing members 6 are slidably arranged along the thickness direction of the mounting ring plate 3 along the fixing members 6 of the pipe body 1. The mounting ring plate 3 is provided with a first fixing groove 31 for the fixing members 6 to slide. The inner wall of the mounting ring groove 4 is provided with a second fixing groove 41 for the fixing members 6 to pass through. The first fixing groove 31 and the second fixing groove 41 are connected. When the mounting ring plate 3 passes into the corresponding mounting ring groove 4, the fixing member 6 slides from the first fixing groove 31 to be located in both the first fixing groove 31 and the second fixing groove 41. The mounting ring plate 3 is provided with a driving assembly 7 for driving the fixing members 6 to slide.

[0047] Reference Figure 3 , Figure 4 and Figure 5 The drive assembly 7 includes a drive block 71 and a drive gear 72. The drive block 71 is slidably disposed on the inner wall of the mounting ring groove 4 along the thickness direction of the mounting ring plate 3. A first drive through groove 42 for the drive block 71 to slide is formed on the inner wall of the mounting ring groove 4. A second drive through groove 32 for the drive block 71 to pass through is formed on the mounting ring plate 3. A drive spring 73 is provided on the drive block 71. The drive spring 73 applies a force to the drive block 71 to move towards the second drive through groove 32. When the mounting ring plate 3 passes into the corresponding mounting ring groove 4, the drive block 71 passes from the first drive through groove 42 into the second drive through groove 32. A clearance slope is provided on the side of the drive block 71 away from the fixing member 6. The side of the clearance slope away from the first drive through groove 42 is positioned close to the first fixing through groove 31.

[0048] Reference Figure 3 , Figure 4 and Figure 5 The mounting ring plate 3 is provided with a receiving chamber 721 for accommodating the drive gear 72. The receiving chamber 721 is connected to the first fixed through groove 31 and the second drive through groove 32. The drive gear 72 is rotatably disposed in the receiving chamber 721. The shaft of the drive gear 72 is a damping shaft. The elastic force of the drive spring 73 is greater than the friction force of the damping shaft. The teeth of the drive gear 72 extend out of the receiving chamber 721. A drive rack 74 is connected to the side of the drive block 71 near the drive gear 72. The drive rack 74 meshes with the drive gear 72. The fixing member 6 is a fixing rack. The tooth surface of the fixing member 6 is located on the side near the drive block 71. The tooth surface of the fixing member 6 meshes with the drive gear 72. The fixing member 6 and the drive rack 74 are located on both sides of the drive gear 72 in the radial direction.

[0049] Reference Figure 6 A first limiting block 61 is fixedly connected to the side of the fixing member 6 away from the driving block 71. A first limiting groove 62 is provided on the mounting ring plate 3 for the first limiting block 61 to slide, so as to improve the stability of the sliding of the fixing member 6 and reduce the possibility of the fixing member 6 sliding out of the first fixing groove 31. A second limiting block 711 is connected to the side of the driving block 71 away from the fixing member 6. A second limiting groove 712 is provided on the inner wall of the mounting ring groove 4 for the second limiting block 711 to slide. The driving spring 73 is located in the second limiting groove 712. The driving spring 73 is connected to the driving block 71 through the second limiting block 711. One end of the driving spring 73 is fixedly connected to the second limiting block 711, and the other end of the driving spring 73 is fixedly connected to the inner wall of the second limiting groove 712.

[0050] When installing pipe body 1, place pipe body 1 on U-shaped plate 22. When installing two adjacent pipe bodies 1, align the mounting ring plate 3 with the mounting ring groove 4, and then insert the mounting ring plate 3 into the mounting ring groove 4. When the mounting ring plate 3 contacts the clearance slope of the drive block 71, the drive spring 73 is compressed. When the first drive through groove 42 and the second drive through groove 32 are aligned, under the action of the drive spring 73, the drive block 71 drives the drive rack 74 to pass into the second drive through groove 32. The drive rack 74 and the drive gear 72 gradually mesh and drive the drive gear 72 to rotate. The rotation of the drive gear 72 drives the fixing member 6 to slide, so that the fixing member 6 slides from the first fixing through groove 31 to be located in both the first fixing through groove 31 and the second fixing through groove 41. This realizes the installation and fixing between two adjacent pipe bodies 1 without the need for flange fixing, which can be operated conveniently in a narrow space and improves the installation efficiency of the duct.

[0051] Reference Figure 4 and Figure 5 The drive rack 74 is slidably mounted on the drive block 71. The drive rack 74 slides toward or away from the drive gear 72. The drive block 71 is provided with a groove 713 for the drive rack 74 to slide. A push spring 741 is provided on the drive rack 74. The push spring 741 is connected to the drive rack 74 through a push plate 742. The drive block 71 is provided with a push groove 743 for the push plate 742 to slide. The push spring 741 is located in the push groove 743. One end of the push spring 741 is fixedly connected to the push plate 742, and the other end of the push spring 741 is fixedly connected to the inner wall of the push groove 743. The push spring 741 applies a force to the drive rack 74, causing the push spring 741 to slide away from the drive gear 72.

[0052] Reference Figure 4 and Figure 5 A locking component 8 is provided on the drive rack 74. The locking component 8 is used to fix the drive rack 74 in a position that can mesh with the drive gear 72. The fixing member 6 is provided with an unlocking member 9 for unlocking. When the fixing member 6 slides into the second fixing groove 41, the unlocking member 9 moves and releases the locking component 8 from fixing the drive rack 74. The spring force pushing the spring 741 is greater than the friction force between the drive rack 74 and the drive gear 72.

[0053] Reference Figure 4 and Figure 5The locking assembly 8 includes a locking rod 81 and a locking spring 82. The drive block 71 has a receiving groove for the locking rod 81. The drive rack 74 has a locking groove 744 for the locking rod 81 to pass through. The locking spring 82 is connected to the locking rod 81 via a connecting plate 821. The locking spring 82 applies a force to the locking rod 81, causing it to slide towards the locking groove 744. The drive block 71 also has a connecting groove for the connecting plate 821 to slide in. The locking spring 82 is located within the connecting groove, with one end fixedly connected to the connecting plate 821 and the other end fixedly connected to the inner bottom wall of the connecting groove. During the insertion of the mounting ring plate 3 into the mounting ring groove 4, the locking rod 81 is located within the locking groove 744, allowing the drive rack 74 to mesh with the drive gear 72. When the fixing member 6 is inserted into the second fixing through groove 41, the locking rod 81 slides out of the locking groove 744 under the action of the unlocking member 9.

[0054] Reference Figure 4 and Figure 5 The unlocking component 9 is an unlocking rod, which is bent. One end of the unlocking rod is fixedly connected to the end of the fixing component 6 away from the second fixing through groove 41. The other end of the unlocking rod abuts or disengages from the locking rod 81. The driving block 71 has an unlocking groove 91 for the unlocking rod to pass through and slide. The locking rod 81 has an unlocking slope on the side near the unlocking rod. The end of the unlocking slope away from the unlocking rod is located near the locking groove 744. The elastic force of the driving spring 73 is greater than the elastic force of the locking spring 82.

[0055] During the process of the mounting ring plate 3 being inserted into the mounting ring groove 4, the locking rod 81 is located in the locking groove 744 under the force of the locking spring 82, so that the driving rack 74 can mesh with the driving gear 72. When the fixing member 6 is inserted into the second fixing through groove 41, it drives the unlocking rod to slide towards the locking rod 81. Under the action of the unlocking inclined surface, the unlocking rod and the unlocking inclined surface abut together, driving the locking rod 81 to slide away from the locking groove 744 until the locking rod 81 disengages from the locking groove 744. At this time, under the action of the pushing spring 741, the driving rack 74 moves away from the driving gear 72, and the driving rack 74 disengages from the driving gear 72. This reduces the possibility of the fixing member 6 being guided away from the second fixing through groove 41 due to the instability of the driving spring 73, thereby improving the tightness and stability of the installation between the two adjacent pipe bodies 1.

[0056] Reference Figure 6 A reset rod 745 is fixedly connected to one side of the drive rack 74 near the first drive through groove 42. The reset rod 745 slides together with the drive rack 74. The end of the reset rod 745 away from the drive rack 74 passes into the drive block 71. The drive block 71 is provided with a clearance groove 714 for the reset rod 745 to slide in the direction of approaching or moving away from the fixing member 6.

[0057] When it is necessary to disassemble two adjacent pipes 1, the drive rack 74 is slid back to its original position in the direction closer to the drive by the reset rod 745. Then, the fixing member 6 is pushed out of the second fixing slot 41 by the second fixing slot 41. The fixing member 6 drives the unlocking rod to slide away from the locking rod 81, so that the unlocking rod is disengaged from the locking rod 81. The locking rod 81 automatically enters the locking slot 744 under the action of the locking spring 82, so that the drive rack 74 is fixed again in a position that can mesh with the drive gear 72. Then, the reset rod 745 is pulled, so that the drive rack 74 and the drive block 71 slide away from the second drive slot 32 at the same time until they are disengaged from the second drive slot 32, so that the two adjacent pipes 1 can be disassembled.

[0058] The implementation principle of a quick-installation ventilation duct for confined spaces in subway stations according to an embodiment of this application is as follows:

[0059] When installing the duct, align the dovetail block 211 with the dovetail groove 212 and insert it into the dovetail block 211 on each duct body 1. Install each duct body 1 onto the mounting plate 21 in sequence. Insert the mounting ring plate 3 into the mounting ring groove 4. At this time, the positioning ring plate 5 is also inserted into the positioning ring groove 51. The magnetic suction component 52 and the suction-bearing component 53 attract each other to fix two adjacent duct bodies 1.

[0060] After the mounting ring plate 3 is inserted into the mounting ring groove 4, when the first drive through groove 42 and the second drive through groove 32 are aligned, under the action of the drive spring 73, the drive block 71 drives the drive rack 74 to enter the second drive through groove 32. The drive rack 74 and the drive gear 72 gradually mesh and drive the drive gear 72 to rotate. The rotation of the drive gear 72 drives the fixing member 6 to slide, so that the fixing member 6 slides from the first fixing through groove 31 to be located in both the first fixing through groove 31 and the second fixing through groove 41. When the fixing member 6 slides toward the second fixing through groove 41, it drives the unlocking rod to slide toward the direction close to the locking rod 81. Under the action of the unlocking inclined surface, after the unlocking rod and the unlocking inclined surface abut, the locking rod 81 slides toward the direction away from the locking groove 744 until the locking rod 81 disengages from the locking groove 744. At this time, under the action of the push spring 741, the drive rack 74 moves toward the direction away from the drive gear 72, and the drive rack 74 disengages from the drive gear 72.

[0061] This application also discloses a method for installing quick-installation air ducts, which includes the following steps:

[0062] S1. Pre-installation: Fix the mounting plate 21 and U-shaped plate 22 to the ceiling 2;

[0063] S2. Formal installation: Insert the dovetail block 211 through the dovetail groove 212 and slide several tubes 1 onto the mounting plate 21 in sequence, so that the mounting ring plate 3 is inserted into the corresponding positioning ring groove 51. Under the action of the drive component 7, the fixing part 6 automatically passes from the first fixing through groove 31 into the second fixing through groove 41 to fix two adjacent tubes 1.

[0064] S3. Fixing baffle 213: After all the pipes 1 are installed on the mounting plate 21, fix the baffle 213 to the mounting plate 21 with screws to finally fix the entire duct.

[0065] The mounting plate 21 and U-shaped plate 22 can be reused and used for a long time. When installing each section of the duct 1, simply install the duct 1 onto the mounting plate 21 in sequence and tighten them together. The operation is convenient and quick, improving the installation efficiency of the duct.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-installation ventilation duct for confined spaces in subway stations, characterized in that: The system includes multiple pipes (1), a mounting plate (21) and multiple U-shaped plates (22) for supporting the pipes (1) are fixedly installed on the ceiling (2) of the platform. The multiple U-shaped plates (22) are arranged along the length direction of the mounting plate (21). The pipes (1) are located on the U-shaped plates (22). One end of the pipe (1) along the length direction is provided with a mounting ring plate (3), and the other end of the pipe (1) along the length direction is provided with a mounting ring groove (4). In two adjacent pipes (1), the mounting ring plate (3) on one pipe (1) passes through the mounting ring groove (4) on the other pipe (1). Each side plate of the mounting ring plate (3) is provided with a fixing member (6) for fixing two adjacent pipe bodies (1). The fixing member (6) is slidably arranged along the thickness direction of the mounting ring plate (3). The mounting ring plate (3) is provided with a first fixing through groove (31) for the fixing member (6) to slide. The inner wall of the mounting ring groove (4) is provided with a second fixing through groove (41) for the fixing member (6) to pass through. When the mounting ring plate (3) passes into the corresponding mounting ring groove (4), the fixing member (6) slides from the first fixing through groove (31) to be located in both the first fixing through groove (31) and the second fixing through groove (41). The mounting ring plate (3) is provided with a driving component (7) for driving the fixing member (6) to slide. The drive assembly (7) includes a drive block (71) and a drive gear (72). The drive block (71) is slidably disposed on the inner wall of the mounting ring groove (4) along the thickness direction of the mounting ring plate (3). A first drive through groove (42) for the drive block (71) to slide is provided on the inner wall of the mounting ring groove (4). A second drive through groove (32) for the drive block (71) to pass through is provided on the mounting ring plate (3). A drive spring (73) is provided on the drive block (71). The drive spring (73) applies a force to the drive block (71) to move the drive block (71) toward the second drive through groove (32). When the mounting ring plate (3) passes into the corresponding mounting ring groove (4), the drive block (71) passes through the first drive through groove (42) into the second drive through groove (32). The mounting ring plate (3) is provided with a receiving chamber (721) for accommodating the drive gear (72). The receiving chamber (721) is connected to the first fixed through groove (31) and the second drive through groove (32). The drive gear (72) is rotatably disposed in the receiving chamber (721). The teeth of the drive gear (72) extend out of the receiving chamber (721). A drive rack (74) is provided on the side of the drive block (71) near the drive gear (72). The drive rack (74) meshes with the drive gear (72). The fixing member (6) is a fixing rack. The tooth surface of the fixing member (6) is located on the side near the drive block (71). The tooth surface of the fixing member (6) meshes with the drive gear (72). The fixing member (6) and the drive rack (74) are located on both sides of the drive gear (72) in the radial direction. The drive rack (74) is slidably mounted on the drive block (71). The drive rack (74) slides towards or away from the drive gear (72). The drive block (71) is provided with a sliding groove (713) for the drive rack (74) to slide. A push spring (741) is provided on the drive rack (74). The push spring (741) applies a force to the drive rack (74) to make the drive rack (74) slide away from the drive gear (72). The drive rack (74) is provided with... There is a locking component (8) for fixing the drive rack (74) in a position that can mesh with the drive gear (72). The fixing member (6) is provided with an unlocking member (9) for unlocking. When the fixing member (6) slides into the second fixing slot (41), the unlocking member (9) moves and releases the locking component (8) from fixing the drive rack (74). The elastic force of the push spring (741) is greater than the frictional force between the drive rack (74) and the drive gear (72).

2. The quick-installation ventilation duct for confined spaces in subway stations according to claim 1, characterized in that: The drive block (71) has a clearance slope on the side away from the fixing member (6), and the end of the clearance slope away from the first drive through groove (42) is close to the first fixing through groove (31).

3. The quick-installation ventilation duct for confined spaces in subway stations according to claim 1, characterized in that: The locking assembly (8) includes a locking rod (81) and a locking spring (82). The drive block (71) is provided with a receiving groove for the locking rod (81). The drive rack (74) is provided with a locking groove (744) for the locking rod (81) to pass through. The locking spring (82) is connected to the locking rod (81) through a connecting plate (821). The locking spring (82) applies a force to the locking rod (81) to make the locking rod (81) slide toward the locking groove (744). During the process of the mounting ring plate (3) being inserted into the mounting ring groove (4), the locking rod (81) is located in the locking groove (744), so that the drive rack (74) can mesh with the drive gear (72). When the fixing member (6) is inserted into the second fixing through groove (41), the locking rod (81) slides out of the locking groove (744) under the action of the unlocking member (9).

4. The quick-installation ventilation duct for confined spaces in subway stations according to claim 3, characterized in that: The unlocking component (9) is an unlocking rod, which is bent. One end of the unlocking rod is fixedly connected to the fixing component (6), and the other end of the unlocking rod abuts or disengages from the locking rod (81). The locking rod (81) has an unlocking slope on the side near the unlocking rod, and the end of the unlocking slope away from the unlocking rod is located near the locking groove (744). The elastic force of the driving spring (73) is greater than that of the locking spring (82).

5. The quick-installation ventilation duct for confined spaces in subway stations according to claim 1, characterized in that: A reset rod (745) is connected to the side of the drive rack (74) near the first drive through groove (42). The reset rod (745) slides together with the drive rack (74). The end of the reset rod (745) away from the drive rack (74) passes into the drive block (71). The drive block (71) is provided with a clearance groove (714) for the reset rod (745) to slide.

6. The quick-installation ventilation duct for confined spaces in subway stations according to claim 1, characterized in that: A positioning ring plate (5) is provided on the side of the mounting ring plate (3) near the inner bottom wall of the mounting ring groove (4). A positioning ring groove (51) is provided on the inner bottom wall of the mounting ring groove (4) for the positioning ring plate (5) to pass through. A magnetic suction element (52) is provided on the side of the positioning ring plate (5) away from the first fixed through groove (31). A suction element (53) is provided on the inner bottom wall of the positioning ring groove (51). The magnetic suction element (52) and the suction element (53) are used together.

7. The quick-installation ventilation duct for confined spaces in subway stations according to claim 6, characterized in that: The top surface of the tube (1) is provided with a strip-shaped dovetail block (211), and the bottom surface of the mounting plate (21) is provided with a dovetail groove (212) for the dovetail block (211) to pass through. The dovetail groove (212) passes through one end of the mounting plate (21) in the length direction. A baffle (213) is provided at the end through which the dovetail groove (212) is passed. The baffle (213) is installed on the mounting plate (21) by screws. The dovetail blocks (211) of two adjacent tubes (1) abut against each other. The baffle (213) abuts against the dovetail block (211) furthest from the bottom wall of the dovetail groove (212).

8. An installation method, using the quick-installation ventilation duct for confined spaces in subway stations as described in claim 7, characterized in that, The method includes: S1. Formal installation: Insert the dovetail block (211) along the dovetail groove (212) and slide several tubes (1) onto the mounting plate (21) in sequence, so that the mounting ring plate (3) is inserted into the corresponding positioning ring groove (51). Under the action of the driving component (7), the fixing member (6) automatically passes from the first fixing through groove (31) into the second fixing through groove (41) to fix two adjacent tubes (1); S2. Fixing baffle (213): After all the pipes (1) are installed on the mounting plate (21), the baffle (213) is fixed to the mounting plate (21) with screws to finally fix the entire air duct.

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