A subway station track top ventilation device

Abstract

A subway station track-top ventilation device, relating to the field of subway ventilation technology, includes: a station center plate, which is horizontally arranged; and a duct body, which includes a plurality of duct units arranged linearly. Each duct unit is detachably connected to the station center plate via a connecting component. A sealing component is provided between each pair of adjacent duct units. The sealing component includes an accessory slidably fitted on one side of the duct unit and a sealing element installed on the other side of the duct unit. The accessory is used to connect with the side of the adjacent duct unit with the sealing element, and the sealing element is used to abut against the side of the adjacent duct unit with the accessory. The device is simple and convenient to operate, and can quickly assemble the duct units, improving the assembly efficiency of the duct units and reducing the assembly complexity of the entire ventilation device.

Description

Technical Field

[0001] This utility model relates to the field of subway ventilation technology, specifically to a subway station track top ventilation device. Background Technology

[0002] The track-top ventilation duct is an important component of the subway station ventilation system, serving both heat and smoke exhaust functions. It is generally suspended between the station's central slab and the structural side walls. Due to its special location, it is generally not poured at the same time as the main station structure.

[0003] Existing track-top ventilation ducts are divided into two types: cast-in-place reinforced concrete track-top ventilation ducts and precast ventilation ducts. Among them, the cast-in-place method is relatively mature but the operation is complex and the cycle is long. Compared with cast-in-place reinforced concrete track-top ventilation ducts, precast ventilation ducts have the advantages of high efficiency and simple operation. However, due to the narrow space in subway tunnels, the precast ventilation ducts are subject to space limitations during hoisting and construction, which affects the assembly efficiency of the precast ventilation ducts. Moreover, when connecting two adjacent precast ventilation duct sections, multiple equipment needs to work together synchronously, which is time-consuming, labor-intensive, and complex to operate. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a subway station track top ventilation device to solve the problems of complex assembly operation and low assembly efficiency of prefabricated air ducts in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A subway station track top ventilation device, comprising:

[0007] The station's central slab, its horizontal arrangement; and

[0008] The air duct body includes several air duct units arranged in a linear manner. Each air duct unit is detachably connected to the station center plate through a connecting component. A sealing component is provided between each pair of adjacent air duct units.

[0009] The sealing assembly includes a fitting that is slidably sleeved on one side of the air duct unit and a seal installed on the other side of the air duct unit. The fitting is used to connect with the side of the adjacent air duct unit where the seal is provided, and the seal is used to abut against the side of the adjacent air duct unit where the fitting is provided.

[0010] Compared with the prior art, this utility model has the following advantages: In use, the first air duct unit is connected to the station center plate through the connecting component, then the second air duct unit abuts against the seal of the first air duct unit, and at the same time, the fittings on the second air duct unit are slid to connect with the first air duct unit. Finally, the second air duct unit is also connected to the station center plate through the connecting component. Then, the installation of the remaining air duct units can be completed in the same way. The operation is simple and convenient, and the air duct units can be assembled quickly, which improves the assembly efficiency of the air duct units and reduces the assembly complexity of the entire ventilation device.

[0011] Preferably, each of the air duct units includes a horizontally arranged air duct housing, with mounting frames fixedly fitted at both ends of the air duct housing. The fitting is slidably fitted on one of the mounting frames, the seal is installed on the other mounting frame, and the connecting assembly is disposed between the air duct housing and the station center plate.

[0012] Preferably, a sealing groove is provided circumferentially on the side wall of one of the mounting frames of each duct housing away from the duct housing. The sealing element includes a sealing strip fixedly installed on the side wall of another mounting frame of the duct housing away from the duct housing. The sealing strip is arranged circumferentially along the mounting frame and is used to insert and cooperate with the sealing groove of the adjacent duct housing.

[0013] Preferably, the mounting frame with the sealing groove has a plurality of threaded blind holes spaced apart on both sides of the opposite side wall. The assembly includes a sliding frame that is slidably fitted on the corresponding mounting frame. A plurality of bolts are threaded through and spaced apart on both sides of the sliding frame. The bolts are used to connect one-to-one with the plurality of threaded blind holes of the adjacent air duct housing.

[0014] Preferably, the connecting assembly includes a connecting plate fixedly installed on the upper part of the air duct housing, a plurality of mounting parts disposed on the upper part of the connecting plate, and a plurality of connecting parts slidably disposed between the inner and outer sides of the lower part of the station center plate, wherein the plurality of connecting parts are detachably connected to the plurality of mounting parts in a one-to-one correspondence.

[0015] Preferably, each of the mounting components includes a rotating column that is vertically rotatably mounted in the upper part of the connecting plate. One end of the rotating column located in the connecting plate is coaxially fixedly mounted with a limiting plate. The radius of the limiting plate is larger than the radius of the connecting column. The limiting plate is freely rotatable in the connecting plate. The other end of the rotating column freely passes through the connecting plate and is coaxially fixedly mounted with a nut. The nut is threadedly connected to the corresponding connecting component.

[0016] Preferably, each of the connecting components includes a connecting rod that is vertically slidably snapped between the inner and outer sides of the station center plate, and a screw is coaxially fixedly installed at the other end of the connecting rod, the screw being threadedly connected to a corresponding nut.

[0017] Preferably, a limiting plate is fixedly installed circumferentially on the side of the sliding frame facing the sealing strip, and the limiting plate is slidably sleeved on the outside of the air duct housing.

[0018] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the stroke unit.

[0021] Figure 3 for Figure 1 A cross-sectional view of the connecting plate.

[0022] Figure 4 for Figure 2 A sectional view.

[0023] Figure 5 for Figure 1 A cross-sectional view of the central slab of the station.

[0024] The numbers in the diagram are as follows: 1. Station center plate; 11. Connecting rod; 12. Screw; 13. Slide groove; 14. Baffle; 2. Air duct shell; 3. Mounting frame; 31. Sealing groove; 32. Sealing strip; 33. Threaded blind hole; 4. Sliding frame; 41. Bolt; 42. Limiting plate; 5. Connecting plate; 51. Nut; 52. Rotating column; 53. Limiting disc. Detailed Implementation

[0025] To make the technical means, creative features, achieved objectives and functions of this utility model clearer and easier to understand, the utility model will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] like Figure 1-2 As shown in the figure, an embodiment of the present invention provides a subway station track top ventilation device, comprising: a station center plate 1, which is horizontally arranged; and a duct body, which includes a plurality of duct units arranged linearly. Each duct unit is detachably connected to the station center plate 1 via a connecting component. A sealing component is provided between each pair of adjacent duct units. The sealing component includes an accessory slidably fitted on one side of the duct unit and a sealing element installed on the other side of the duct unit. The accessory is used to connect with the side of the adjacent duct unit with the sealing element, and the sealing element is used to abut against the side of the adjacent duct unit with the accessory.

[0027] The first duct unit is connected to the station center plate 1 via a connecting assembly. Then, the second duct unit abuts against the seal of the first duct unit, while simultaneously sliding the fittings on the second duct unit to connect with the first duct unit. Finally, the second duct unit is also connected to the station center plate 1 via a connecting assembly. The remaining duct units are then installed in the same manner. The operation is simple and convenient, allowing for quick assembly of the duct units, improving assembly efficiency and reducing the overall complexity of the ventilation system assembly.

[0028] like Figure 1-2 as well as Figure 4 As shown, according to another embodiment of the present invention, the subway station track top ventilation device further optimizes the duct unit, seal and assembly included therein. Each duct unit includes a horizontally arranged duct housing 2. Both ends of the duct housing 2 are fixedly fitted with mounting frames 3. The assembly is slidably fitted on one of the mounting frames 3. The seal is installed on the other mounting frame 3. The connecting component is arranged between the top of the duct housing 2 and the station center plate 1.

[0029] Each of the mounting frames 3 of the duct housing 2 has a sealing groove 31 circumferentially provided on the side wall away from the duct housing 2. The sealing element includes a sealing strip 32 fixedly installed on the side wall away from the duct housing 2 of another mounting frame 3. The sealing strip 32 is arranged circumferentially along the mounting frame 3 and is used to insert and cooperate with the sealing groove 31 of the adjacent duct housing 2.

[0030] The mounting frame 3 with the sealing groove 31 has several threaded blind holes 33 spaced apart on its two opposing side walls. The assembly includes a sliding frame 4 that is slidably sleeved on the corresponding mounting frame 3. Several bolts 41 are threaded through and spaced apart on the two opposing side walls of the sliding frame 4. The bolts 41 are used to be threadedly connected to the several threaded blind holes 33 on the mounting frame 3 with the sealing groove 31 of the adjacent air duct housing 2.

[0031] When assembling two adjacent air duct housings 2, the sealing strip 32 of one air duct housing 2 is inserted into the sealing groove 31 of the other air duct housing 2. At the same time, the sliding frame 4 is slid so that the bolt 41 on the sliding frame 4 moves to the position of several threaded blind holes 33 facing the adjacent air duct housing 2. Then, each bolt 41 is tightened to connect with the corresponding threaded blind hole 33, thereby fixing the two adjacent air duct housings 2.

[0032] like Figure 1-3As shown, according to another embodiment of the present invention, the connecting components of the subway station track top ventilation device are further optimized. The connecting components include a connecting plate 5 fixedly installed on the upper part of the air duct housing 2, a plurality of mounting parts disposed on the upper part of the connecting plate 5, and a plurality of connecting parts slidably disposed between the inner and outer sides of the lower part of the station center plate 1. The plurality of connecting parts are detachably connected to the plurality of mounting parts in a one-to-one correspondence.

[0033] Each of the aforementioned mounting components includes a rotating column 52 vertically rotatably mounted within the upper part of the connecting plate 5. One end of the rotating column 52 within the connecting plate 5 is coaxially fixedly mounted with a limiting disk 53. The radius of the limiting disk 53 is larger than the radius of the connecting column. The limiting disk 53 is freely rotatably disposed within the connecting plate 5. The other end of the rotating column 52 freely extends out of the connecting plate 5 and is coaxially fixedly mounted with a nut 51. The nut 51 is threadedly connected to the corresponding connecting component. The limiting disk 53 ensures that the rotating column 52 can rotate stably within the connecting plate 5.

[0034] Each of the aforementioned connectors includes a connecting rod 11 that is vertically slidably engaged between the inner and outer sides of the station center plate 1. The other end of the connecting rod 11 is coaxially fixedly mounted with a screw 12, which is threadedly connected to a corresponding nut 51. Preferably, a groove 13 is provided at the bottom of the station center plate 1, the width of the groove opening being smaller than the width of its bottom. A baffle 14 is fixedly mounted at the end of the connecting rod 11 located inside the station center plate 1. The baffle 14 is slidably engaged with the inner wall of the groove 13, thereby ensuring that the connecting rod 11 cannot detach from the station center plate 1. This arrangement of the connecting rod 11 ensures that when the bolt 41 on the sliding frame 4 is threadedly connected to the corresponding threaded blind hole 33, there will be no interference between the screw 12 and the nut 51.

[0035] like Figure 4 As shown, according to another embodiment of the present invention, in a preferred embodiment of the subway station track top ventilation device, a limiting plate 42 is fixedly installed circumferentially on the side of the sliding frame 4 facing the sealing strip 32, and the limiting plate 42 is slidably sleeved on the outside of the air duct housing 2 to prevent the sliding frame 4 from detaching from the air duct housing 2 during the sliding process.

[0036] The working principle of this utility model is as follows: When using this utility model, keep each connecting rod 11 stationary, and then rotate the nuts 51 on the first air duct housing 2 in sequence to make them threadedly connected with the corresponding screws 12. Through the cooperation of several nuts 51 and corresponding screws 12, the first air duct housing 2 is fixed. Then, insert the sealing strip 32 of the second air duct housing 2 into the sealing groove 31 on the first air duct housing 2, and slide the sliding frame 4 on the second air duct housing 2 so that each bolt 41 on the sliding frame 4 moves to the corresponding threaded blind hole 33 on the mounting frame 3 of the first air duct housing 2. Then, tighten each screw... Bolt 41 is threaded into the corresponding blind hole 33. It should be noted that while moving the sliding frame 4, the position of several connecting rods 11 corresponding to the second air duct housing 2 needs to be adjusted in the vertical direction to avoid interference between the screw 12 and the nut 51 on the second air duct housing 2. Then, while keeping each connecting rod 11 stationary, the nut 51 on the second air duct housing 2 is rotated in sequence to make it threaded into the corresponding screw 12. The second air duct housing 2 is fixed by the cooperation of several nuts 51 and corresponding screws 12. Then, the remaining air duct housings 2 can be assembled in sequence according to the above method.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A subway station track top ventilation device, characterized in that, include: The station's central slab (1) is arranged horizontally; as well as The air duct body includes several air duct units arranged in a linear manner. Each air duct unit is detachably connected to the station center plate (1) through a connecting component. A sealing component is provided between each pair of adjacent air duct units. The sealing assembly includes a fitting that is slidably sleeved on one side of the air duct unit and a seal installed on the other side of the air duct unit. The fitting is used to connect with the side of the adjacent air duct unit where the seal is provided, and the seal is used to abut against the side of the adjacent air duct unit where the fitting is provided.

2. A subway station track top ventilation device according to claim 1, characterized in that, Each of the aforementioned air duct units includes a horizontally arranged air duct housing (2), with mounting frames (3) fixedly fitted at both ends of the air duct housing (2). The fitting is slidably fitted on one of the mounting frames (3), the sealing element is installed on the other mounting frame (3), and the connecting assembly is disposed between the air duct housing (2) and the station center plate (1).

3. A subway station track top ventilation device according to claim 2, characterized in that, Each of the mounting frames (3) of the duct housing (2) has a sealing groove (31) on its side wall away from the duct housing (2) along its circumference. The sealing element includes a sealing strip (32) fixedly installed on the side wall away from the duct housing (2) of another mounting frame (3). The sealing strip (32) is arranged along the circumference of the mounting frame (3) and is used to insert and cooperate with the sealing groove (31) of the adjacent duct housing (2).

4. A subway station track top ventilation device according to claim 3, characterized in that, The mounting frame (3) with a sealing groove (31) has several threaded blind holes (33) spaced apart on its opposing side walls. The mounting accessory includes a sliding frame (4) that is slidably sleeved on the corresponding mounting frame (3). Several bolts (41) are threaded through the opposing side walls of the sliding frame (4) and are spaced apart. The bolts (41) are used to be threadedly connected to the several threaded blind holes (33) of the adjacent air duct housing (2) one by one.

5. A subway station track top ventilation device according to claim 2, characterized in that, The connecting assembly includes a connecting plate (5) fixedly installed on the upper part of the air duct housing (2), a number of mounting parts disposed on the upper part of the connecting plate (5), and a number of connecting parts slidably disposed between the inner and outer sides of the lower part of the station center plate (1). The number of connecting parts are detachably connected to the number of mounting parts in a one-to-one correspondence.

6. A subway station track top ventilation device according to claim 5, characterized in that, Each of the aforementioned mounting components includes a rotating column (52) that is vertically rotatably mounted in the upper part of the connecting plate (5). One end of the rotating column (52) located in the connecting plate (5) is coaxially fixedly mounted with a limiting plate (53). The radius of the limiting plate (53) is larger than the radius of the connecting column. The limiting plate (53) is freely rotatably disposed in the connecting plate (5). The other end of the rotating column (52) freely passes through the connecting plate (5) and is coaxially fixedly mounted with a nut (51). The nut (51) is threadedly connected to the corresponding connecting component.

7. A subway station track top ventilation device according to claim 6, characterized in that, Each of the connectors includes a connecting rod (11) that is vertically slidably snapped between the inner and outer sides of the station center plate (1), and a screw (12) is coaxially fixedly installed at the other end of the connecting rod (11), and the screw (12) is threadedly connected to the corresponding nut (51).

8. A subway station track top ventilation device according to claim 4, characterized in that, The sliding frame (4) is fixedly installed with a limiting plate (42) along its circumference on the side facing the sealing strip (32), and the limiting plate (42) is slidably sleeved on the outside of the air duct housing (2).

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