A subway piston wind well protection structure and a subway station with the same

Abstract

The application discloses a protection structure of a subway piston air shaft, which is arranged in an air exhaust channel, wherein the air exhaust channel comprises a vertical air exhaust channel and a horizontal air exhaust channel which are communicated, the vertical air exhaust channel is provided with a first protection structure, and the horizontal air exhaust channel is provided with a second protection structure; both sides of the vertical air exhaust channel are provided with corresponding first and second mounting tables, a channel protection cover is rotatably connected to the first mounting table, an extension device is arranged at the bottom of the channel protection cover, the other end of the extension device is connected to the lower portion of the second mounting table, and the extension and retraction of the extension device can drive the opening and closing of the channel protection cover. The application discloses a subway station with the protection structure. The protection structure is arranged in the vertical air exhaust channel and the horizontal air exhaust channel, so that the setting length of the horizontal air exhaust channel can be shortened, the plugging and reopening are facilitated, the subway ventilation volume is ensured, and the emergency protection needs of the subway piston air shaft can be better adapted.

Description

Technical Field

[0001] This invention belongs to the field of subway engineering technology, specifically relating to a subway piston ventilation shaft protection structure and a subway station with the structure. Background Technology

[0002] Subway stations typically have piston ventilation shafts to maintain air circulation between the subway tunnel and the outside. To serve as a shelter for civil defense, these shafts need to be sealed in case of dangerous situations to prevent external explosions from damaging the station's interior.

[0003] In existing technologies, piston ventilation shafts typically employ methods such as... Figure 1 and Figure 2 The sealing method shown in the diagram involves a traditional sealing structure comprising a reinforced concrete protective airtight door 100, a waterproof material sealing layer 200 placed outside the reinforced concrete protective airtight door 100, a soil layer 300, and sandbags 400. A schematic diagram of an existing piston ventilation shaft is shown below. Figure 3 As shown, the exhaust duct includes a vertical exhaust duct and a horizontal exhaust duct, which are vertically connected. Two sets of traditional sealing structures are installed in the vertical exhaust duct from the outside to the inside.

[0004] The existing method of sealing subway piston ventilation shafts involves manually closing the reinforced concrete protective airtight doors, followed by sealing the shafts by piling sandbags outside. This method is problematic because it involves a large workload, incurring high costs for materials, personnel, and machinery; and the time required for sealing and opening is also lengthy, making it unsuitable for the rapid transitions between modern wartime and peacetime operations. Furthermore, the use of two reinforced concrete protective airtight doors and two sealing structures in the horizontal exhaust duct significantly reduces its space utilization. Therefore, improvements to the existing protective structure of subway piston ventilation shafts are necessary. Summary of the Invention

[0005] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a protective structure for a subway piston ventilation shaft and a subway station with the structure. The protective structure is set in the vertical exhaust duct and the horizontal exhaust duct, which can shorten the length of the horizontal exhaust duct and facilitate sealing and reopening. While ensuring the ventilation volume of the subway, it can better meet the emergency protection needs of the subway piston ventilation shaft.

[0006] To achieve the above objectives, according to one aspect of the present invention, a protective structure for a subway piston ventilation shaft is provided, which is disposed in an exhaust duct, the exhaust duct including a vertical exhaust duct and a horizontal exhaust duct connected to each other, wherein the vertical exhaust duct is connected to the external ground and the horizontal exhaust duct is connected to the interior of the subway tunnel.

[0007] The protective structure includes a first protective structure installed in a vertical exhaust duct and a second protective structure installed in a horizontal exhaust duct.

[0008] The first protective structure is horizontally arranged inside the vertical exhaust duct. The vertical exhaust duct has corresponding first and second mounting platforms on both sides. An exhaust duct protective cover is rotatably connected to the first mounting platform. The bottom of the exhaust duct protective cover is provided with a telescopic device. One end of the telescopic device is connected to the bottom of the exhaust duct protective cover, and the other end is connected to the bottom of the second mounting platform. The extension and retraction of the telescopic device can drive the opening and closing of the exhaust duct protective cover.

[0009] As a further improvement of the present invention, the second protective structure includes a reinforced concrete protective airtight door, a waterproof material sealing layer disposed outside the reinforced concrete protective airtight door, a soil layer, and sandbags.

[0010] As a further improvement of the present invention, the first mounting platform and the second mounting platform are separately disposed on the inner wall of the vertical exhaust duct, or the inner wall of the vertical exhaust duct is thickened to form a corresponding boss structure, which serves as the first mounting platform and the second mounting platform for installing the duct protective cover.

[0011] As a further improvement of the present invention, the first mounting platform and the second mounting platform are connected by a third mounting platform and a fourth mounting platform. The top surfaces of the first mounting platform, the second mounting platform, the third mounting platform and the fourth mounting platform have the same elevation, so that a square hollow structure is formed between the mounting platforms.

[0012] As a further improvement of the present invention, the bottom of the air duct protective cover is provided with a limiting block, and the bottom of the air duct protective cover is provided with a connecting frame, and the connecting frame is provided with a sliding rod, which is slidably connected in the limiting hole of the limiting block; the side of the second mounting platform is provided with a groove, and when the air duct protective cover is closed, the sliding rod can extend into the groove.

[0013] As a further improvement of the present invention, a connecting groove is provided at the bottom of the connecting frame, and a rotating block is rotatably connected in the connecting groove. The rotating block is connected to the telescopic device, and the other end of the telescopic device is connected to the mounting wall below the second mounting platform through a pin.

[0014] As a further improvement of the present invention, the first mounting platform is provided with a plurality of mounting seats on its upper surface, the mounting seats are provided with mounting grooves inside, and one end of the air duct protective cover is provided with a plurality of mounting ears. The position and number of mounting ears correspond to the position and number of mounting grooves of the mounting seats, and the mounting ears are rotatably connected in the mounting grooves.

[0015] As a further improvement of the present invention, a sealing strip is provided at the bottom edge of the air duct protective cover.

[0016] As a further improvement of the present invention, the telescopic device is an electro-hydraulic push rod.

[0017] According to another aspect of the present invention, a subway station with the aforementioned subway piston ventilation shaft protective structure is provided. The protective structure is located within the subway station's exhaust duct. The exhaust duct includes a vertical exhaust duct and a horizontal exhaust duct. The vertical exhaust duct is located above one end of the horizontal exhaust duct, and one end of the vertical exhaust duct is connected to the external ground, while the other end is connected to the horizontal exhaust duct. One end of the horizontal exhaust duct is connected to the vertical exhaust duct, while the other end is connected to the interior of the subway tunnel.

[0018] The vertical exhaust duct is equipped with the first protective structure, and the horizontal exhaust duct is equipped with the second protective structure.

[0019] In summary, the technical solutions conceived by this invention have the following beneficial effects compared with the prior art:

[0020] The protective structure for subway piston ventilation shafts of this invention is installed in both vertical and horizontal exhaust ducts. The protective structure for the vertical exhaust duct can be controlled by a telescopic device to open and close the protective cover, ensuring the necessary piston airflow for subway operation while protecting the piston ventilation shaft. Compared to traditional methods of sealing subway station piston ventilation shafts, by placing this protective structure within the vertical exhaust duct, the design of the protective cover saves a reinforced concrete protective airtight door in the horizontal exhaust duct, reducing the space occupied by the horizontal exhaust duct, shortening its length, and improving space utilization. Furthermore, the protective structure for the vertical exhaust duct allows for rapid and automatic closing of the protective cover. Therefore, the overall protective structure of this invention is easy to seal and reopen, requires minimal engineering work, and better meets the emergency protection needs of subway piston ventilation shafts while ensuring adequate subway ventilation. Attached Figure Description

[0021] Figure 1 This is a plan view of a traditional piston ventilation shaft sealing structure;

[0022] Figure 2 A cross-sectional schematic diagram of a traditional piston ventilation shaft sealing structure;

[0023] Figure 3 This is a schematic diagram of a traditional piston ventilation shaft exhaust duct structure.

[0024] Figure 4 This is a schematic diagram of the exhaust duct structure of a subway piston ventilation shaft according to an embodiment of the present invention;

[0025] Figure 5 This is a three-dimensional structural diagram of the protective structure for a subway piston ventilation shaft according to an embodiment of the present invention;

[0026] Figure 6This is a schematic diagram of the ventilation duct protective cover structure involved in the subway piston ventilation shaft protective structure according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the first mounting platform structure involved in the subway piston ventilation shaft protection structure according to an embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the limiting block structure involved in the subway piston ventilation shaft protection structure according to an embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the telescopic device structure involved in the subway piston ventilation shaft protection structure according to an embodiment of the present invention.

[0030] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1-vertical exhaust duct; 2-horizontal exhaust duct; 3-first mounting platform; 4-second mounting platform; 5-duct protective cover; 6-telescopic device; 7-mounting wall; 8-pin; 9-exhaust duct; 30-third mounting platform; 40-fourth mounting platform; 31-mounting seat; 41-groove; 51-mounting ear; 52-limiting block; 53-sliding rod; 54-connecting frame; 541-connecting groove; 55-rotating block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0032] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] Please see Figures 4 to 9 The subway station is equipped with ventilation duct 9, which includes vertical ventilation duct 1 and horizontal ventilation duct 2. Vertical ventilation duct 1 is located above one end of horizontal ventilation duct 2. One end of vertical ventilation duct 1 is connected to the external ground and the other end is connected to horizontal ventilation duct 2. One end of horizontal ventilation duct 2 is connected to vertical ventilation duct 1 and the other end is connected to the inside of the subway tunnel.

[0037] The protective structure for the subway piston ventilation shaft of the present invention is installed in the ventilation duct 9 of the subway station. It includes a first protective structure installed in the vertical ventilation duct 1 and a second protective structure installed in the horizontal ventilation duct 2. The second protective structure can adopt a conventional protective structure, including a reinforced concrete protective airtight door 100, a waterproof material sealing layer 200 installed on the outside of the reinforced concrete protective airtight door 100, a soil layer 300, and sandbags 400.

[0038] The first protective structure is horizontally disposed within the vertical exhaust duct 1. In a specific embodiment of the present invention, a first mounting platform 3 is provided on one side of the inner wall of the vertical exhaust duct 1, and a second mounting platform 4 is provided on the other side. Preferably, the first mounting platform 3 and the second mounting platform 4 are connected by a third mounting platform 30 and a fourth mounting platform 40. The top surfaces of the first mounting platform 3, the second mounting platform 4, the third mounting platform 30 and the fourth mounting platform 40 are at the same elevation, so that a square hollow structure is formed between the mounting platforms.

[0039] Preferably, the first mounting platform 3, the second mounting platform 4, the third mounting platform 30, and the fourth mounting platform 40 are made of reinforced concrete.

[0040] Furthermore, a duct protective cover 5 is rotatably connected to the first mounting platform 3. At least two mounting seats 31 are provided on the upper surface of the first mounting platform 3. The mounting seats 31 are provided with mounting grooves inside. At least two mounting ears 51 are provided at one end of the duct protective cover 5. The position and number of mounting ears 51 correspond to the position and number of mounting grooves of the mounting seats 31. The mounting ears 51 are rotatably connected in the mounting grooves to realize the rotation of the duct protective cover 5 relative to the first mounting platform 3, thereby realizing the opening and closing of the duct protective cover 5. When closed, the duct protective cover 5 rotates to the first mounting platform 3, the second mounting platform 4, the third mounting platform 30, and the fourth mounting platform 40.

[0041] Of course, the duct protective cover 5 of this embodiment can also be set on the second mounting platform 4. The only difference is that the opening direction of the duct protective cover 5 is opposite to that when it is set on the first mounting platform 3. It is also within the protection scope of this invention.

[0042] In another embodiment shown in the accompanying drawings, the first mounting platform 3 and the second mounting platform 4 are separately disposed on the inner wall of the vertical exhaust duct 1. In another embodiment of the invention, by thickening the lower part of the inner wall of the vertical exhaust duct 1, a corresponding boss structure can be formed, serving as the first and second mounting platforms for installing the duct protective cover. Preferably, a third mounting platform and a fourth mounting platform are disposed between the first and second mounting platforms, and the top surfaces of the first, second, third, and fourth mounting platforms are at the same elevation.

[0043] like Figure 8 and Figure 9As shown, a limiting block 52 is provided at the bottom of the duct protective cover 5, and a limiting hole is provided in the limiting block 52. A connecting frame 54 is provided at the bottom of the duct protective cover 5, and at least two sliding rods 53 are provided on the connecting frame 54. The sliding rods 53 are slidably connected in the limiting hole of the limiting block 52. A groove 41 is provided on the side of the second mounting platform 4 facing the first mounting platform 3. The position and number of grooves 41 correspond to the position and number of sliding rods. When the duct protective cover 5 is closed, the sliding rods 53 can extend into the grooves 41 to achieve a stable closure.

[0044] Further as Figure 8 As shown, the bottom of the connecting frame 54 is also provided with a connecting groove 541, and a rotating block 55 is rotatably connected in the connecting groove 541. The rotating block 55 is connected to the telescopic device 6. Two oppositely arranged mounting walls 7 are provided below the second mounting platform 4. One end of the telescopic device 6 is connected to the rotating block 55 at the bottom of the air duct protective cover 5, and the other end is rotatably connected between the two mounting walls 7 via a pin 8. The telescopic device 6 can extend and retract to drive the air duct protective cover 5 to move relative to the square hollow structure formed by the first mounting platform 3, the second mounting platform 4, the third mounting platform 30 and the fourth mounting platform 40, thereby realizing opening and closing.

[0045] Preferably, a sealing strip is provided at the bottom edge of the duct protective cover 5 so that the duct protective cover 5 remains sealed when in contact with the mounting platform.

[0046] Preferably, the telescopic device 6 is an electro-hydraulic push rod, which can be remotely controlled to extend and retract. The extension and retraction length of the telescopic device 6 can control the opening angle of the air duct protective cover 5.

[0047] The subway piston ventilation shaft protection structure of the present invention, under normal circumstances, has both the first protective structure located in the vertical exhaust duct 1 and the second protective structure located in the horizontal exhaust duct 2 in the open state, realizing ventilation between the tunnel interior and the outside. In an emergency, the telescopic device 6 can be controlled to retract, covering the ventilation duct protective cover 5 with the first mounting platform 3, the second mounting platform 4, the third mounting platform 30, and the fourth mounting platform 40, and the sliding rod 53 extends into the groove 41, realizing the closure of the first protective structure; at the same time, the reinforced concrete protective airtight door 100 in the first protective structure is closed, and a soil layer 300 and sandbags 400 are set on its outside, realizing the closure of the second protective structure. When restoring the safe state, the sliding rod 53 retracts from the groove 41, and the telescopic device 6 is controlled to extend, opening the ventilation duct protective cover 5; at the same time, the reinforced concrete protective airtight door 100 is reopened.

[0048] The protective structure for subway piston ventilation shafts of this invention is installed in both vertical and horizontal exhaust ducts. The protective structure for the vertical exhaust duct can be controlled by a telescopic device to open and close the protective cover, ensuring the necessary airflow for subway operation while protecting the piston ventilation shaft. Compared to traditional methods of sealing subway station piston ventilation shafts, by placing this protective structure within the vertical exhaust duct, the design of the protective cover saves the need for a reinforced concrete protective airtight door in the horizontal exhaust duct, reducing the space occupied by the horizontal exhaust duct, shortening its length, and improving space utilization. Furthermore, the protective structure for the vertical exhaust duct allows for rapid and automatic closing of the protective cover, minimizing engineering work and better meeting the emergency protection needs of subway piston ventilation shafts while ensuring adequate subway ventilation.

[0049] This invention solves the problems of existing subway piston ventilation shaft sealing structures being time-consuming and labor-intensive to seal or reopen, failing to guarantee the ventilation volume required for subway operation, and involving a large amount of sealing work.

[0050] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A protective structure for a subway piston ventilation shaft, disposed within an exhaust duct (9), wherein the exhaust duct (9) comprises a vertical exhaust duct (1) and a horizontal exhaust duct (2) connected to each other, and the vertical exhaust duct (1) is connected to the external ground, and the horizontal exhaust duct (2) is connected to the interior of the subway tunnel; characterized in that, The protective structure includes a first protective structure located in the vertical exhaust duct (1) and a second protective structure located in the horizontal exhaust duct (2); The first protective structure is horizontally arranged inside the vertical exhaust duct (1). The vertical exhaust duct (1) has corresponding first mounting platform (3) and second mounting platform (4) on both sides. The first mounting platform (3) and the second mounting platform (4) are made of reinforced concrete. The first mounting platform (3) is rotatably connected to the duct protective cover (5). The bottom of the duct protective cover (5) is provided with a telescopic device (6). One end of the telescopic device (6) is connected to the bottom of the duct protective cover (5), and the other end is connected to the bottom of the second mounting platform (4). The extension and retraction of the telescopic device (6) can drive the opening and closing of the duct protective cover (5).

2. The subway piston ventilation shaft protection structure according to claim 1, characterized in that, The second protective structure includes a reinforced concrete protective airtight door, a waterproof material sealing layer installed outside the reinforced concrete protective airtight door, a soil layer, and sandbags.

3. The subway piston ventilation shaft protection structure according to claim 1, characterized in that, The first mounting platform (3) and the second mounting platform (4) are separately set on the inner wall of the vertical exhaust duct (1), or the inner wall of the vertical exhaust duct (1) is thickened to form a corresponding boss structure, which serves as the first mounting platform (3) and the second mounting platform (4) for installing the duct protective cover.

4. The subway piston ventilation shaft protection structure according to any one of claims 1-3, characterized in that, The first mounting platform (3) and the second mounting platform (4) are connected by the third mounting platform (30) and the fourth mounting platform (40). The top surfaces of the first mounting platform (3), the second mounting platform (4), the third mounting platform (30) and the fourth mounting platform (40) have the same elevation, so that a square hollow structure is formed between the mounting platforms.

5. The subway piston ventilation shaft protection structure according to any one of claims 1-3, characterized in that, The bottom of the air duct protective cover (5) is provided with a limiting block (52), and the bottom of the air duct protective cover (5) is provided with a connecting frame (54). The connecting frame (54) is provided with a sliding rod (53), and the sliding rod (53) is slidably connected in the limiting hole of the limiting block (52). The side of the second mounting platform (4) is provided with a groove (41). When the air duct protective cover (5) is closed, the sliding rod (53) can extend into the groove (41).

6. The subway piston ventilation shaft protection structure according to claim 5, characterized in that, The bottom of the connecting frame (54) is provided with a connecting groove (541), and a rotating block (55) is rotatably connected in the connecting groove (541). The rotating block (55) is connected to the telescopic device (6), and the other end of the telescopic device (6) is connected to the mounting wall (7) below the second mounting platform (4) through a pin (8).

7. The subway piston ventilation shaft protection structure according to any one of claims 1-3, characterized in that, The first mounting platform (3) has several mounting seats (31) on its upper surface. The mounting seats (31) have mounting grooves inside. The air duct protective cover (5) has several mounting ears (51) at one end. The position and number of mounting ears (51) correspond to the position and number of mounting grooves of the mounting seats (31). The mounting ears (51) are rotatably connected in the mounting grooves.

8. The subway piston ventilation shaft protection structure according to any one of claims 1-3, characterized in that, A sealing strip is provided at the bottom edge of the air duct protective cover (5).

9. The subway piston ventilation shaft protection structure according to any one of claims 1-3, characterized in that, The telescopic device (6) is an electro-hydraulic push rod.

10. A subway station having the subway piston ventilation shaft protection structure according to any one of claims 1-9, characterized in that, The protective structure is located in the ventilation duct (9) of the subway station. The ventilation duct (9) includes a vertical ventilation duct (1) and a horizontal ventilation duct (2). The vertical ventilation duct (1) is located above one end of the horizontal ventilation duct (2). One end of the vertical ventilation duct (1) is connected to the external ground and the other end is connected to the horizontal ventilation duct (2). One end of the horizontal ventilation duct (2) is connected to the vertical ventilation duct (1) and the other end is connected to the inside of the subway tunnel. The vertical exhaust duct (1) is provided with the first protective structure, and the horizontal exhaust duct (2) is provided with the second protective structure.

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