Waterproofing devices for subway station entrances

Abstract

This application relates to a waterproofing device for subway entrance buildings, comprising a first support structure, a second support structure, a first connecting structure, a second connecting structure, a reinforcing structure, and a roof structure. The first support structure includes an adjustable-height first support beam and a walking mechanism, adapting to terrain and facilitating movement. Each connecting structure enhances the stability of the support system, with multiple sets of connecting flanges and reinforcing rods ensuring stability. The roof structure is arc-shaped, with a water-blocking plate and sealing layer ensuring waterproofing, and the support frame group optimizing stress distribution. The telescopic rods of the reinforcing structure provide stable support and distribute stress. This invention has advantages such as excellent waterproofing, stable support, flexible adaptability, strong structure, and easy maintenance. It is suitable for the construction and renovation of subway entrances, effectively resisting severe weather and ensuring the safe and smooth operation of the subway.

Description

Technical Field

[0001] This application relates to the field of building waterproofing technology, and in particular to a waterproofing device for a subway line entrance. Background Technology

[0002] With the rapid development of urban subway transportation, subway entrances, as key nodes for passengers entering and exiting the subway system, have attracted much attention regarding the reliability and functionality of their architectural structures. Since subway entrances are typically located above ground and directly exposed to the natural environment, they are frequently subjected to rainwater intrusion. Traditional waterproofing designs for entrance buildings often have many shortcomings and fail to meet the stringent waterproofing requirements of subway operations.

[0003] On the one hand, some existing entrance canopies have simple structures and insufficient stability in their support systems. Under severe weather conditions such as strong winds and heavy rain, they are prone to swaying or even displacement, affecting passenger safety and potentially causing rainwater to seep in through the gaps between the canopy and the supporting structure, damaging station facilities and the ground. For example, some simple canopies use only a single column for support, lacking effective lateral and longitudinal reinforcement. After prolonged use, the column foundation loosens, the canopy tilts, and its waterproofing function is significantly compromised.

[0004] On the other hand, the waterproofing structure of traditional canopies is not sophisticated enough. The joints between the water-blocking panels are not tightly sealed, allowing rainwater to easily seep into the entrance through the gaps. Furthermore, the drainage design of the canopy is inadequate, preventing water from draining away promptly and further increasing the risk of leakage. Moreover, most existing canopies do not consider compatibility with subway entrance passages or ease of maintenance. If waterproofing problems occur, repairs will be difficult and costly, potentially requiring the entrance to be closed for extended periods, disrupting normal subway operations.

[0005] In conclusion, there is an urgent need for a new type of waterproofing device for subway entrances to solve the above problems, ensuring that subway entrances maintain good waterproofing performance under various weather conditions and guaranteeing the safe and efficient operation of the subway system. Summary of the Invention

[0006] This invention addresses the problems of poor waterproofing, unstable supporting structure, and inconvenient maintenance in existing subway entrance buildings by providing a waterproofing device for subway entrance buildings above subway lines.

[0007] The objective of this invention is primarily achieved through the following approach:

[0008] The waterproofing device for the entrance building above the subway line includes a first support structure, a second support structure, a first connecting structure, a second connecting structure, a reinforcing structure, and a roof structure;

[0009] Two first support structures are provided along the length of the subway entrance passage. Each first support structure includes a first support beam and a first support vertical beam installed at the left and right ends of the lower surface of the first support beam. The first support vertical beam includes an upper support tube and a lower support tube inserted into the lower end of the upper support tube. A telescopic mechanism for adjusting the position of the upper support tube is provided between the upper support tube and the lower support tube, and a walking mechanism is provided at the lower end of the lower support tube.

[0010] The first connecting structure includes a first supporting longitudinal beam connected between two first supporting crossbeams. The first supporting longitudinal beam has two beams, one on the left and one on the right, which correspond to the two ends of the first supporting crossbeam respectively.

[0011] The second connection structure includes a second support beam connected between two first support longitudinal beams, and multiple second support beams are evenly arranged along the length direction of the first support longitudinal beams;

[0012] The canopy structure has a superior arc cross-section and includes a top plate mechanism and side plate mechanisms connected to the left and right sides of the top plate mechanism. Both the top plate mechanism and the side plate mechanism include a support frame assembly and a water baffle installed on the support frame assembly. A sealing layer is provided between adjacent water baffles, and the lower end face of the side plate mechanism is higher than the lower end face of the walking mechanism.

[0013] The second support structure includes a second support longitudinal beam installed on the upper surface of the first support longitudinal beam. There are two second support longitudinal beams, and their upper ends are connected to the top plate mechanism.

[0014] The reinforcing structure includes a first reinforcing component and a second reinforcing component. The first reinforcing component is installed between the top plate mechanism and the side plate mechanism, and the second reinforcing component is installed between the side plate mechanism and the first supporting longitudinal beam.

[0015] Preferably, a first connecting flange is installed on the side where the first supporting crossbeam connects to the first supporting longitudinal beam, and a reinforcing block is installed between the first supporting crossbeam and the first supporting vertical beam.

[0016] Preferably, the telescopic mechanism includes a telescopic component and a support component. The fixed end of the telescopic component is connected to the side wall of the upper support tube, and the telescopic end of the telescopic component is connected to the side wall of the lower support tube. The support component includes an upper mounting plate, a lower limiting plate, and a support screw. The support screw is threadedly connected to the upper mounting plate. The upper mounting plate and the lower limiting plate are respectively installed on the side walls of the upper support tube and the lower support tube, and the lower end of the support screw abuts against the upper surface of the lower limiting plate. Two sets of both the telescopic component and the support component are symmetrically arranged, and the telescopic component and the support component are staggered around the first support vertical beam.

[0017] Preferably, the walking mechanism includes a mounting box and walking wheels. The upper surface of the mounting box is connected to the lower end of the lower support tube. The bottom of the mounting box is open and the interior is hollow. There are at least two walking wheels, all of which are rotatably connected inside the mounting box. The lower end surface of the walking wheels is higher than the lower end surface of the mounting box.

[0018] Preferably, the first supporting longitudinal beam and the second supporting transverse beam are connected by a second connecting flange. The second supporting transverse beam includes two second supporting transverse tubes, one above the other, and multiple first reinforcing rods are connected between the two second supporting transverse tubes.

[0019] Preferably, the second support longitudinal beam includes two second support longitudinal tubes, one upper and one lower, with multiple second reinforcing rods connecting the two second support longitudinal tubes. The upper surface of the upper second support longitudinal tube and the lower surface of the lower second support longitudinal tube are respectively equipped with third connecting flanges that connect to the top plate mechanism and the first support longitudinal beam.

[0020] Preferably, both the first reinforcing component and the second reinforcing component include multiple telescopic rods distributed along the length of the subway entrance passage, and the second reinforcing component is provided in two sets, one set being connected between the side of the first supporting longitudinal beam and the side plate mechanism, and the other set being connected between the bottom of the first supporting longitudinal beam and the side plate mechanism.

[0021] Preferably, the support frame assembly includes a first support frame and a second support frame, the water baffles are all installed on the first support frame, the top plate mechanism is all based on the first support frame, the side plate mechanism is based on the first support frame near the top plate mechanism, and the bottom of the side plate mechanism is based on the second support frame.

[0022] Preferably, the first support frame includes a first frame body that is hollow inside and open at both the top and bottom, and a plurality of V-shaped support plates are uniformly arranged inside the first frame body along its length direction. A water baffle is sealed and connected to the upper opening of each first support frame. The second support frame includes a second frame body that is open at the bottom and has an internal hole.

[0023] Preferably, the sealing layer protrudes from the upper surface of the baffle plate.

[0024] In summary, compared with the prior art, the present invention has the following beneficial technical effects:

[0025] (1) The present invention has good waterproof performance. The superior arc design of the roof structure, combined with the water baffle and sealing layer, allows rainwater to slide off quickly. The sealing layer effectively prevents rainwater leakage, ensuring that the subway entrance is protected from rainwater, keeping the facilities and ground inside the station dry, and providing a better environment for the subway to enter and exit.

[0026] (2) The present invention has a stable support system, with the cooperation of the first support structure, the second support structure, the first connection structure, the second connection structure and the reinforcing structure, and through the reinforcement measures of connecting flange, reinforcing block and reinforcing rod, the entire waterproof device can withstand the impact of strong winds, rainstorms and other severe weather, and is not easy to shake or shift, thus ensuring long-term stable operation.

[0027] (3) The present invention has flexible adaptability. The telescopic mechanism can adjust the height of the supporting vertical beam to adapt to different terrain elevation differences. The walking mechanism is easy to move during installation and maintenance, reducing the difficulty of construction and maintenance, and improving the versatility and practicality of the device.

[0028] (4) The present invention has good structural strength. The first and second reinforcing components in the reinforced structure provide real-time support for the top plate mechanism and the side plate mechanism. Combined with the first and second support frames, stress is effectively dispersed, the overall structure's resistance to deformation is enhanced, and the service life of the device is extended.

[0029] (5) The present invention has convenient maintenance characteristics, modular design of each component, simple and reliable connection method, easy disassembly and replacement of damaged parts, and can quickly complete maintenance work without affecting the normal operation of the subway, thereby reducing operating costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is the front view of the present invention;

[0032] Figure 3 This is a schematic diagram of the first support structure in this invention;

[0033] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0034] Figure 5 This is an installation diagram of the second support structure, the first connecting structure, and the second connecting structure in this invention;

[0035] Figure 6 This is a front view of the ceiling structure in this invention;

[0036] Figure 7 This is a schematic diagram showing the connection between the top plate mechanism and the side plate mechanism in this invention;

[0037] Figure 8 This is a schematic diagram showing the connection between the support frame assembly and the water baffle in this invention;

[0038] Figure 9 This is a schematic diagram showing the connection between the first support frame and the second support frame in this invention;

[0039] Figure 10 This is a schematic diagram showing the connection of the first support frame and the second support frame from another angle in this invention.

[0040] Reference numerals: 1-First support structure, 11-First support beam, 111-First connecting flange, 12-First support vertical beam, 121-Upper support pipe, 122-Lower support pipe, 13-Telescopic mechanism, 131-Telescopic assembly, 132-Support assembly, 1321-Upper mounting plate, 1322-Lower limit plate, 1323-Support screw, 14-Walking mechanism, 141-Mounting box, 142-Walking wheel, 15-Reinforcing block;

[0041] 2-Second support structure, 21-Second support longitudinal beam, 211-Second support longitudinal pipe, 212-Second reinforcing rod, 22-Third connecting flange;

[0042] 3-First connecting structure, 31-First supporting longitudinal beam, 32-Second connecting flange;

[0043] 4-Second connecting structure, 41-Second supporting beam, 411-Second supporting tube, 412-First reinforcing rod;

[0044] 5-Reinforced structure, 51-First reinforcing component, 52-Second reinforcing component, 53-Telescopic rod;

[0045] 6- Roof structure, 61- Roof plate mechanism, 62- Side plate mechanism, 63- Support frame assembly, 631- First support frame, 6311- First frame, 632- Second support frame, 6321- Second frame, 633- Support plate, 64- Water baffle. Detailed Implementation

[0046] The technical solution of the present invention will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the implementation of the present invention is not limited to the following embodiments, and any modifications and / or alterations made to the present invention will fall within the protection scope of the present invention.

[0047] Example 1:

[0048] like Figure 1 , 2 As shown, the present invention discloses a technical solution: a waterproofing device for a subway entrance building, comprising a first support structure 1, a second support structure 2, a first connecting structure 3, a second connecting structure 4, a reinforcing structure 5, and a roof structure 6. The first support structure 1 and the second support structure 2 support the roof structure 6, the first connecting structure 3 and the second connecting structure 4 enhance the structural strength of the first support structure 1, and the reinforcing structure 5 improves the support stability of the roof structure 6, ensuring the long-term stable operation of the entire waterproofing device.

[0049] Specifically, two first support structures 1 are provided along the length of the subway entrance passage to support the entire waterproof device. Each first support structure 1 includes a first support beam 11 and a first support vertical beam 12 installed at the left and right ends of the lower surface of the first support beam 11. The first support vertical beam 12 includes an upper support pipe 121 and a lower support pipe 122 inserted into the lower end of the upper support pipe 121. The first support beam 11 and the upper support pipe 121 at the upper end of the first support vertical beam 12 are fixedly connected by bolts, and a reinforcing block 15 is installed between their connection parts. A telescopic mechanism 13 is provided between the upper support pipe 121 and the lower support pipe 122 to adjust the position of the upper support pipe 121, thereby adjusting the height of the entire waterproof device. The lower end of the lower support pipe 122 is provided with a walking mechanism 14 to facilitate the movement and installation of the waterproof device.

[0050] The aforementioned reinforcing block 15 is made of rubber, which serves two purposes. First, it provides cushioning and shock absorption. When the waterproofing device above the subway entrance is impacted by external forces, such as the swaying force transmitted by the canopy structure 6 under strong winds, or accidental collisions that may occur during installation or maintenance, the rubber reinforcing block 15 can effectively absorb these impacts. Compared with traditional rigid reinforcing materials, rubber can better cope with dynamic changes in external forces. When the walking mechanism 14 vibrates during movement, or when the canopy structure 6 vibrates slightly under wind and rain, the rubber reinforcing block 15 can isolate the vibration. The elasticity of the rubber can prevent the vibration from being directly transmitted between the first support beam 11 and the first support vertical beam 12, avoiding the propagation and amplification of vibration throughout the structure. This helps maintain the stability of the structure, reduces component fatigue damage caused by long-term vibration, reduces loosening of connection parts caused by vibration, and extends their service life. Second, the rubber material has a certain degree of softness and plasticity, which can better fill any small gaps that may exist between the first support beam 11 and the first support vertical beam 12, ensuring that they always maintain a tight fit.

[0051] Specifically, the first connecting structure 3 is composed of a first supporting longitudinal beam 31 connected between two first supporting crossbeams 11. The first supporting longitudinal beam 31 has two parts, left and right, which correspond to the two ends of the first supporting crossbeams 11 respectively. A first connecting flange 111 is welded to the side where the first supporting crossbeams 11 and the first supporting longitudinal beams 31 are connected. The first connecting flange 111 is used to achieve a reliable connection between the first supporting crossbeams 12 and the first supporting longitudinal beams 31.

[0052] Specifically, the second connecting structure 4 includes a second supporting crossbeam 41 connected between the two first supporting longitudinal beams 31. Multiple second supporting crossbeams 41 are evenly arranged along the length of the first supporting longitudinal beams 31 to further improve the stability of the entire waterproof device.

[0053] Specifically, the roof structure 6 has a curved cross-section, including a roof plate mechanism 61 and side plate mechanisms 62 connected to the left and right sides of the roof plate mechanism 61. Both the roof plate mechanism 61 and the side plate mechanism 62 include a support frame assembly 63 and a water baffle 64 installed on the support frame assembly 63. A sealing layer is provided between adjacent water baffles 64 to ensure waterproofing. The lower end face of the side plate mechanism 62 is higher than the lower end face of the walking mechanism 14, which on the one hand prevents rainwater from seeping in from the bottom, and on the other hand ensures the feasibility of the walking mechanism 14.

[0054] Specifically, the second support structure 2 includes a second support longitudinal beam 21 fixedly installed on the upper surface of the first support longitudinal beam 31. There are two second support longitudinal beams 21, and their upper ends are fixedly connected to the top plate mechanism 61 to support the top plate mechanism 61.

[0055] Specifically, the reinforcing structure 5 consists of a first reinforcing component 51 and a second reinforcing component 52. The first reinforcing component 51 is installed between the top plate mechanism 61 and the side plate mechanism 62, and the second reinforcing component 52 is installed between the side plate mechanism 62 and the first supporting longitudinal beam 31, in order to further improve the structural strength of the entire waterproof device.

[0056] Example 2:

[0057] like Figure 3 , 4As shown, the present invention discloses another technical solution, a waterproofing device for the entrance of a subway line, which differs from embodiment 1 in that the above-mentioned telescopic mechanism 13 is composed of a telescopic component 131 and a support component 132. The fixed end of the telescopic component 131 is fixedly connected to the side wall of the upper support pipe 121 by bolts, and the telescopic end of the telescopic component 131 is fixedly connected to the side wall of the lower support pipe 122 by bolts. The support component 132 is composed of an upper mounting plate 1321, a lower limit plate 1322 and a support screw 1323. The support screw 1323 is threadedly connected to the upper mounting plate 1321. The upper mounting plate 1321 and the lower limit plate 1322 are respectively welded or bolted to the side wall of the upper support pipe 121 and the side wall of the lower support pipe 122, and the lower end of the support screw 1323 abuts against the upper surface of the lower limit plate 1322. Two sets of telescopic components 131 and support components 132 are symmetrically arranged, and the telescopic components 131 and support components 132 are staggered around the first support vertical beam 12. When the height needs to be adjusted, the position of the upper support tube 121 is changed by activating the telescopic components 131. When the adjustment is completed, the support screw 1323 is rotated with a tool so that its bottom contacts the upper surface of the lower limit plate 1322, which provides a good support effect. The telescopic mechanism 13 can not only realize the flexible adjustment of the height of the first support vertical beam 12 to adapt to different terrain height requirements, but also provide stable support through the support components 132 after the adjustment is in place, preventing the upper support tube 121 from sliding down and ensuring the reliability of the support structure. The telescopic components 131 can be push rod motors, cylinders, or hydraulic cylinders. Their driving methods are not within the scope of protection of this application and will not be described in detail here.

[0058] Specifically, the walking mechanism 14 consists of a mounting box 141 and walking wheels 142. The upper surface of the mounting box 141 is fixedly connected to the lower end of the lower support tube 122 by bolts. The mounting box 141 has an open bottom and is hollow inside. There are at least two walking wheels 142, and they are all rotatably connected to the mounting box 141 through a rotating shaft. The lower end face of the walking wheels 142 should be higher than the lower end face of the mounting box 141. The walking mechanism 14 facilitates the movement of the entire waterproof device during installation, maintenance, or fine-tuning, reducing manual handling costs. At the same time, the walking wheels 142 avoid direct friction with the ground, extending their service life. In specific use, corresponding slide rails can be set on both sides of the subway line, and the walking wheels 142 can roll on the slide rails. The structure of the walking wheels 142 can refer to that of subway wheels, and its specific structure will not be described in detail here.

[0059] Example 3:

[0060] like Figure 5As shown, this invention discloses another technical solution: a waterproofing device for the entrance building above a subway line. The difference from Embodiment 1 is that the first supporting longitudinal beam 31 and the second supporting transverse beam 41 are fixedly connected by a second connecting flange 32. The second connecting flange 32 ensures a tight connection. The second supporting transverse beam 41 includes two upper and lower second supporting transverse tubes 411. Multiple first reinforcing rods 412 are welded between the two second supporting transverse tubes 411. The first reinforcing rods 412 include vertical rods and inclined rods welded to the diagonal of two adjacent vertical rods, which enhances the bending strength of the second supporting transverse beam 41, making the entire structure more stable under lateral force and effectively resisting wind and rain impact.

[0061] Example 4:

[0062] like Figure 5 As shown, this invention discloses another technical solution: a waterproofing device for the entrance building above a subway line. The difference from Embodiment 1 is that the aforementioned second supporting longitudinal beam 21 includes two second supporting longitudinal pipes 211, with multiple second reinforcing rods 212 welded between them. Each second reinforcing rod 212 includes a vertical rod and an inclined rod welded to the diagonal of two adjacent vertical rods, thus improving the load-bearing capacity of the second supporting longitudinal beam 21. Furthermore, the upper surface of the upper second supporting longitudinal pipe 211 and the lower surface of the lower second supporting longitudinal pipe 211 are respectively welded with third connecting flanges 22 that connect to the top plate mechanism 61 and the first supporting longitudinal beam 31. The third connecting flanges 22 facilitate connection to the top plate mechanism 61 and the first supporting longitudinal beam 31, optimizing the force transmission path and ensuring the stable installation of the roof structure 6.

[0063] Example 5:

[0064] like Figure 5 , 6 As shown, this invention discloses another technical solution: a waterproofing device for the entrance of a subway line. The difference from Embodiment 1 is that the first reinforcing component 51 and the second reinforcing component 52 both include multiple telescopic rods 53 distributed along the length of the subway entrance passage. The second reinforcing component 52 is provided with two sets, one set connected between the side of the first supporting longitudinal beam 31 and the side plate mechanism 62, and the other set connected between the bottom of the first supporting longitudinal beam 31 and the side plate mechanism 62. The telescopic rods 51 can be damper struts, which can be adaptively adjusted according to the stress of the roof, providing real-time support to the roof. Especially in extreme weather conditions such as strong winds, they can effectively disperse stress, prevent roof deformation and damage, and ensure the overall structural strength of the waterproofing device.

[0065] Example 6:

[0066] like Figure 7 , 8As shown, this invention discloses another technical solution: a waterproofing device for subway line entrance buildings. The difference from Embodiment 1 is that the aforementioned support frame group 63 includes a first support frame 631 and a second support frame 632. Water-blocking plates 64 are all installed on the first support frame 631. The top plate mechanism 61 uses the first support frame 631. The side plate mechanism 62 uses the first support frame 631 near the top plate mechanism 61, and the bottom of the side plate mechanism 62 uses the second support frame 632. Using suitable support frames at different locations can meet the different stress requirements of the roof and side plates. This design optimizes material usage and reduces costs. The first support frame 631 provides stable support for the baffle plate 64, while the second support frame 632 strengthens and connects the bottom of the side plate and also provides stable support for the baffle plate 64. In this embodiment, the top plate mechanism 61 uses three columns of first support frames 631, with seven sets in each column. The side plate mechanism 62 has two columns of first support frames 631 and one column of second support frames 632, with seven sets in each column. The adjacent first support frames 631 and the first support frame 631 and the second support frame 632 are all fixedly connected by bolts.

[0067] Specifically, such as Figure 9 , 10 As shown, the first support frame 631 includes a hollow first frame 6311 with openings at both the top and bottom. Multiple V-shaped support plates 633 are uniformly welded along the length of the first frame 6311. A water baffle 64 is sealed and connected to the upper opening of each first support frame 631. The second support frame 632 includes a second frame 6321 with an opening at the bottom and a central hole inside. Multiple V-shaped support plates 633 are also uniformly welded along the length of the second frame 632. The bottom of the water baffle 64 contacts the upper surface of the support plate 633. The V-shaped support plate 633 increases the bending resistance of the support frame assembly 63, making the water baffle 64 more stable and effectively resisting rainwater impact, thus ensuring the stability of the entire side plate mechanism.

[0068] Specifically, the sealing layer protrudes from the upper surface of the baffle plate 64, with the upper end forming a raised semi-circular arc. Using silicone sealant, it allows the baffle plate 64 to be installed on the first support frame 631 and fills the gaps between adjacent baffle plates 64. The silicone sealant cures in humid environments, forming a tough sealing layer that provides excellent resistance to rainwater and chemical components in dust that may come into contact with the subway entrance. Its high bonding strength firmly bonds the baffle plate 64 to the first support frame 631 while also accommodating a certain degree of displacement and deformation. Furthermore, the protruding sealing layer effectively prevents rainwater from seeping into the gaps between adjacent baffle plates 64. Even when heavy rain accumulates or strong winds drive rain, it ensures that rainwater slides off the baffle surface, preventing water from entering the entrance and improving waterproofing reliability. Additionally, to ensure good water-blocking performance, EPDM rubber waterproof membrane can be laid on the surface of the baffle plate 64, providing a multi-layer waterproofing effect.

[0069] The waterproofing device for subway entrances above subway lines of the present invention effectively solves the existing waterproofing problem of subway entrances through innovative structural design, and has broad application prospects. It can be widely used in the construction and renovation projects of various urban subway entrances.

[0070] 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 waterproofing device for a subway station entrance building above a subway line, characterized in that: The first support structure (1), the second support structure (2), the first connecting structure (3), the second connecting structure (4), the reinforcing structure (5) and the ceiling structure (6) are included. The first support structure (1) is provided with two first support structures (1) along the length direction of the subway entrance channel, each first support structure (1) includes a first support beam (11) and a first support vertical beam (12) mounted on the left and right ends of the lower surface of the first support beam (11), the first support vertical beam (12) includes an upper support pipe (121) and a lower support pipe (122) inserted into the lower end of the upper support pipe (121), the upper support pipe (121) and the lower support pipe (122) are provided with a telescopic mechanism (13) for adjusting the position of the upper support pipe (121), and the lower end of the lower support pipe (122) is provided with a walking mechanism (14); The first connecting structure (3) includes a first support beam (31) connected between two first support beams (11), and the first support beam (31) is provided with two first support beams (31) corresponding to the two ends of the first support beam (11); The second connecting structure (4) includes a second support beam (41) connected between two first support beams (31), and the second support beam (41) is evenly provided with a plurality of second support beams (41) along the length direction of the first support beam (31); The cross section of the ceiling structure (6) is an arc structure, including a top plate mechanism (61) and a side plate mechanism (62) connected to the left and right sides of the top plate mechanism (61), the top plate mechanism (61) and the side plate mechanism (62) are provided with a sealing layer between the adjacent water baffle (64), and the lower end surface of the side plate mechanism (62) is higher than the lower end surface of the walking mechanism (14); The second support structure (2) includes a second support beam (21) mounted on the upper surface of the first support beam (31), and the second support beam (21) is provided with two second support beams (21), and the upper ends of the two second support beams (21) are connected with the top plate mechanism (61); The reinforcing structure (5) includes a first reinforcing assembly (51) and a second reinforcing assembly (52), the first reinforcing assembly (51) is mounted between the top plate mechanism (61) and the side plate mechanism (62), and the second reinforcing assembly (52) is mounted between the side plate mechanism (62) and the first support beam (31). The telescopic mechanism (13) comprises telescopic assemblies (131) and support assemblies (132), fixed ends of the telescopic assemblies (131) are connected to side walls of the upper support pipe (121), telescopic ends of the telescopic assemblies (131) are connected to side walls of the lower support pipe (122), the support assemblies (132) comprise upper mounting plates (1321), lower limiting plates (1322) and support screws (1323), the support screws (1323) are threadedly connected to the upper mounting plates (1321), the upper mounting plates (1321) and the lower limiting plates (1322) are correspondingly mounted to the side walls of the upper support pipe (121) and the side walls of the lower support pipe (122) respectively, and lower ends of the support screws (1323) abut against upper surfaces of the lower limiting plates (1322); the telescopic assemblies (131) and the support assemblies (132) are both symmetrically provided with two groups, and the telescopic assemblies (131) and the support assemblies (132) are alternately mounted around the first support vertical beam (12).

2. The waterproofing device for the entrance building above the subway line according to claim 1, characterized in that: The first support transverse beam (11) is provided with a first connecting flange (111) on one side connected with the first support longitudinal beam (31), and is provided with a reinforcing block (15) between the first support transverse beam (11) and the first support vertical beam (12).

3. The waterproofing device for the entrance building above the subway line according to claim 2, characterized in that: The walking mechanism (14) comprises mounting boxes (141) and walking wheels (142), upper surfaces of the mounting boxes (141) are connected with lower ends of the lower support pipe (122), bottoms of the mounting boxes (141) are open and hollow, the walking wheels (142) are provided with at least two and are all rotationally connected in the mounting boxes (141), and lower end surfaces of the walking wheels (142) are higher than a lower end surface of the mounting box (141).

4. The subway entrance building waterproofing device above the subway line according to claim 1, characterized in that: The first support longitudinal beam (31) and the second support transverse beam (41) are connected through a second connecting flange (32), the second support transverse beam (41) comprises two second support transverse pipes (411) arranged in an up-down mode, and a plurality of first reinforcing rods (412) are connected between the two second support transverse pipes (411).

5. The subway entrance building waterproofing device above the subway line according to claim 1, characterized in that: The second support longitudinal beam (21) comprises two second support longitudinal pipes (211) arranged in an up-down mode, a plurality of second reinforcing rods (212) are connected between the two second support longitudinal pipes (211), and upper surfaces of the upper second support longitudinal pipe (211) and a lower surface of the lower second support longitudinal pipe (211) are respectively provided with third connecting flanges (22) connected with the roof mechanism (61) and the first support longitudinal beam (31).

6. The subway entrance building waterproofing device above the subway line according to claim 1, characterized in that: The first reinforcing assembly (51) and the second reinforcing assembly (52) both comprise a plurality of telescopic rods (53) distributed along a length direction of the subway entrance channel, and the second reinforcing assembly (52) is provided with two groups, one group of which is connected between a side portion of the first support longitudinal beam (31) and the side plate mechanism (62), and the other group is connected between a bottom portion of the first support longitudinal beam (31) and the side plate mechanism (62).

7. The waterproofing device for the entrance building above the subway line according to claim 1, characterized in that: The support frame set (63) comprises a first support frame (631) and a second support frame (632), the water baffle (64) is mounted on the first support frame (631), the roof mechanism (61) adopts the first support frame (631), the position close to the roof mechanism (61) of the side plate mechanism (62) adopts the first support frame (631), and the bottom of the side plate mechanism (62) adopts the second support frame (632).

8. The waterproofing device for the entrance building above the subway line according to claim 7, characterized in that: The first support frame (631) comprises a first frame body (6311) which is internally hollow and open at the upper and lower portions, and a plurality of V-shaped support plates (633) are uniformly arranged in the length direction of the inside of the first frame body (6311), a water baffle (64) is sealingly connected to the upper opening of each first support frame (631), and the second support frame (632) comprises a second frame body (6321) which is internally hollow and open at the lower portion.

9. The waterproofing device for the entrance building above the subway line according to claim 8, characterized in that: The sealing layer protrudes from the upper surface of the water baffle (64).

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