Seabed tunnel joint sealing device

Abstract

The invention provides a sealing device for a subsea tunnel joint, which relates to the technical field of tunnel connection and comprises a tunnel connecting assembly, a sealing assembly and a tunnel assembly, the tunnel assembly comprises a main tunnel, the two ends of the main tunnel are connected with inner lap joint plates correspondingly, and sealing grooves are formed in the two ends of the main tunnel correspondingly. The tunnel connecting assembly comprises a connecting tunnel, storage grooves are formed in the two ends of the connecting tunnel respectively, a bearing of the connecting tunnel is connected with a screw rod, and the connecting tunnel is connected with a guide round rod; the sealing assembly comprises two outer lap joint plates, the two outer lap joint plates are connected with sealing plates respectively, and the sealing plates are matched with the sealing grooves. In order to overcome the defects in the prior art, the sealing device for the joint of the subsea tunnel is developed, sealing connection of the adjacent prefabricated main tunnels is conveniently achieved, replacement of a single main tunnel in the later period is facilitated, and the construction work efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel connection, and in particular to a sealing device for a submarine tunnel connection. Background Art

[0002] Undersea tunnels are marine structures built under the seabed for the passage of people and vehicles to solve the problem of traffic across straits and bays without hindering the navigation of ships. At present, the construction methods of undersea tunnels usually include four methods: drilling and blasting, immersed tube method, tunnel boring machine method, and shield method. Among them, the tunnel construction method of immersed tube method is to float the prefabricated tunnel prefabricated components to the sea surface (river surface) site, and sink them one by one in the dredged foundation trench.

[0003] Existing technologies, for example, have invented a method for constructing an undersea tunnel. Through the sealing effect of a sealing wall, seawater is prevented from entering the tunnel during the tunnel laying process. After laying each section of tunnel prefabricated parts, the interior of the tunnel can be directly entered for tunnel construction. The laying and construction are carried out simultaneously, and some parts can also be preset in advance and then sunk for laying, which greatly improves construction work efficiency.

[0004] At present, there is still a lack of a device that can facilitate the sealed connection of adjacent prefabricated main tunnels, and facilitate the later replacement of a single main tunnel to improve construction work efficiency.

[0005] Therefore, in view of the above problems, a sealing device for the joint of an undersea tunnel is proposed to solve the above problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention develops a sealing device for submarine tunnel connections, which facilitates the sealed connection of adjacent prefabricated main tunnels and facilitates the subsequent replacement of a single main tunnel, thereby improving construction work efficiency.

[0007] The technical solution to the technical problem solved by the present invention is as follows: the present invention provides a sealing device at the connection of an undersea tunnel, comprising: a tunnel connection component, a sealing component and a tunnel component; the tunnel component comprises a main tunnel, the two ends of the main tunnel are respectively connected to inner lap plates, and the two ends of the main tunnel are respectively provided with sealing grooves; the tunnel connection component comprises a connecting tunnel, the two ends of the connecting tunnel are respectively provided with storage grooves, the connecting tunnel bearing is connected to a screw, and the connecting tunnel is connected to a guide round rod; the sealing component comprises two outer lap plates, the two outer lap plates are respectively connected to sealing plates, the sealing plates match the sealing grooves, the outer lap plates match the inner lap plates, and the two outer lap plates are respectively arranged in the corresponding storage grooves; the two outer lap plates are respectively connected to two cylinders, the two reverse threads of the screw are respectively threadedly connected to the corresponding cylinders, and the two ends of the screw are respectively arranged in the corresponding outer lap plates, the guide round rod passes through the other two cylinders, and the two ends of the guide round rod are respectively arranged in the corresponding outer lap plates. By adopting tunnel connection components and sealing components, it is convenient to realize the segmented installation of tunnel components. The relevant components are prefabricated, which is convenient for rapid installation. Through dredging engineering, the seabed of the pre-laid tunnel is leveled and dredged to form a foundation trench that can adapt to the tunnel prefabricated components. Then the adjacent tunnel components and tunnel connection components are installed. When the tunnel components need to be replaced in the later stage, the sealing components can be disconnected to facilitate the replacement of tunnel components. Waterproof walls are made at both ends of the main tunnel, and water pumps are installed. The water pumps are used to pump out seawater in the area composed of tunnel connection components, sealing components and tunnel components during the entire installation process, which is convenient for installation. The surface material of the external lap plate and the sealing plate is rubber, which is convenient for sealing and waterproofing.

[0008] As an optimization, it also includes an auxiliary connection component, which includes an inspection box, the connection tunnel is provided with two groups of symmetrical slides, the connection tunnel is connected to a fixed shaft corresponding to each of the slides, each of the outer lap plates is connected to a block, each of the blocks is connected to a moving shaft, the inspection box bearing is connected to an intermediate shaft, the intermediate shaft is connected to the center of the middle connecting rod, the middle connecting rod is rotatably connected to the outer connecting rod, the outer connecting rod is rotatably connected to the moving shaft, the middle connecting rod is rotatably connected to the inner connecting rod, the inner connecting rod is rotatably connected to the fixed shaft, the inspection box is connected to a round tube column, and the main tunnel is provided with a stepped hole corresponding to the round tube column. By adopting the round tube column, after it is inserted into the stepped hole, a sealed connection is achieved, so that the connection between the sealing component and the tunnel component is more stable.

[0009] As an optimization, the intermediate shaft is connected to the second active bevel gear, the maintenance box bearing is connected to the central axis of the second driven bevel gear, the second active bevel gear meshes with the second driven bevel gear, the central axis of the second driven bevel gear is connected to the square shaft, the square shaft is arranged in the square hole of the square hole shaft, the circular tube column is provided with a track groove, each of the movable shafts is respectively arranged in the corresponding track groove, each of the movable shafts is respectively connected to the circular tube shaft, the square hole shaft bearing is connected to the circular tube shaft, the circular tube column is connected to the T seat, the T seat is connected to the guide vertical rod, the circular tube column is provided with symmetrical notches, the T seat is connected to symmetrical retaining springs, the symmetrical retaining springs are respectively ringed on the guide vertical rod, the symmetrical retaining springs are respectively connected to the arc surface L blocks, the two ends of the guide vertical rod are respectively arranged in the corresponding arc surface L blocks, the symmetrical arc surface L blocks are respectively arranged in the corresponding notches, the square hole shaft is connected to the power round head arm, and the power round head arm matches the symmetrical arc surface L blocks. By using bevel gear meshing and square hole shaft bearing to connect the round tube shaft, the power round head arm can be moved and rotated at the same time, so that it first contacts the narrow bottom surface of the arc surface L block, drives the arc surface L block to move along the guide vertical rod, stretches the retaining spring, and after the power round head arm is out of contact with the narrow bottom surface of the arc surface L block, the retaining spring is restored for a section, so that the power round head arm contacts the wide bottom surface of the arc surface L block, so that the arc surface L block exceeds the step surface of the notch close to the stepped hole. Assuming that the sealing plate moves outward, the power round head arm now swings in the opposite direction and moves at the same time. After contacting the step surface of the arc surface L block, it cannot continue to move, which will hinder the sealing plate from continuing to move outward, thereby preventing the sealing plate from escaping from the sealing groove. When replacing the tunnel component, it is necessary to open the maintenance box, remove the second driven bevel gear, rotate the square shaft, make the power round head arm horizontal, keep the spring restored, reset the arc surface L block, fix the square shaft to prevent it from rotating, and remove the tunnel component to make the round tube column smoothly escaping from the stepped hole.

[0010] As an optimization, the connecting tunnel is provided with a second water outlet hole corresponding to each of the step holes, so as to facilitate the discharge of seawater in the step holes.

[0011] As an optimization, the connecting tunnel is connected to the sealing strip plate corresponding to each group of symmetrical sliding grooves.

[0012] As an optimization, a power assembly is also included, the power assembly includes a first driven bevel gear, the screw is connected to the first driven bevel gear, the first driven bevel gear meshes with a first active bevel gear, the first active bevel gear is connected to the vertical shaft, the connecting tunnel is connected to the sealing column, and the vertical shaft bearing is connected to the sealing column. By using the meshing of bevel gears, it is convenient to drive the screw to rotate and realize the movement of related components.

[0013] As an optimization, the sealing column is provided with a circular groove, the vertical axis is connected to the bolt head, and the bolt head is arranged in the circular groove. It is convenient to use a tool to rotate the bolt head to realize the rotation of the vertical axis. When this method is adopted, the circular groove is sealed after the installation is completed.

[0014] As an optimization, the main tunnel is provided with a first water outlet hole corresponding to each sealing groove, so as to facilitate the discharge of seawater in the sealing groove.

[0015] The effects provided in the content of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solution has the following advantages or beneficial effects: 1. The relevant components of this device are prefabricated, which is convenient for rapid installation. Through dredging engineering, the seabed of the pre-laid tunnel is leveled and dredged to form a base trench that can adapt to the tunnel prefabricated components. Then the adjacent tunnel components and tunnel connection components are installed, the outer lap plate overlaps the inner lap plate, and the sealing plate is inserted into the sealing groove to achieve a sealed connection. When the tunnel component needs to be replaced later, the sealing component can be disconnected to facilitate the replacement of the tunnel component.

[0016] 2. This device adopts the method of connecting rod rotation connection, in which the arc surface L block follows the movement of the middle connecting rod, and the power round head arm follows the movement of the outer connecting rod, so that the movement speed and displacement of the power round head arm are greater than the arc surface L block. By adopting bevel gear meshing and square hole shaft bearing to connect the round tube shaft, the power round head arm can move and rotate at the same time, so that it first contacts the narrow bottom surface of the arc surface L block, drives the arc surface L block to move along the guide vertical rod, stretches the retaining spring, and after the power round head arm is out of contact with the narrow bottom surface of the arc surface L block, the retaining spring is restored for a section, so that the power round head arm contacts the wide bottom surface of the arc surface L block, so that the arc surface L block exceeds the step surface of the notch close to the step hole. Assuming that the sealing plate moves outward, the power round head arm now swings in the opposite direction and moves at the same time. After contacting the step surface of the arc surface L block, it cannot continue to move, which will hinder the sealing plate from continuing to move outward, thereby preventing the sealing plate from escaping from the sealing groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0018] Figure 1 It is a schematic diagram of the unconnected state of the present invention.

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the tunnel assembly of the present invention.

[0020] Figure 3 For the present invention Figure 2 A partial enlarged view of middle A.

[0021] Figure 4It is a schematic diagram of the three-dimensional structure of the tunnel connection assembly of the present invention.

[0022] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 .

[0023] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 .

[0024] Figure 7 It is a partially cutaway three-dimensional structural schematic diagram of the auxiliary connecting assembly of the present invention.

[0025] Figure 8 It is a schematic diagram of a partial three-dimensional structure of the auxiliary connection assembly of the present invention.

[0026] Fig. 9 It is a schematic diagram of the power round head arm of the present invention swinging into place.

[0027] Fig.10 It is a schematic diagram of the swinging process of the power round head arm contacting the arc surface L block of the present invention.

[0028] Fig.11 It is a schematic diagram of the connection status of the present invention.

[0029] In the figure: 1. Tunnel assembly, 11. Main tunnel, 12. Sealing groove, 13. Inner lap plate, 14. Step hole, 15. Second water outlet, 16. First water outlet; 2. Tunnel connection assembly, 21. Connection tunnel, 22. Storage slot, 23. Slide slot, 24. Guide round rod, 25. Screw, 26. Fixed shaft, 27. Sealing strip, 28. Sealing column, 29. Round groove; 3. Sealing assembly, 31. External lap plate, 32. Sealing plate, 33. Moving shaft, 34. Block, 35. Round tube shaft, 36. Cylinder; 4. Power assembly, 41. First driven bevel gear, 42. First driving bevel gear, 43. Vertical shaft, 44. Bolt head; 5. Auxiliary connecting assembly, 51. Middle connecting rod, 52. Outer connecting rod, 53. Round tube column, 54. Square shaft, 55. Maintenance box, 56. Second driven bevel gear, 57. Second driving bevel gear, 58. Inner connecting rod, 59. Intermediate shaft, 510. Track groove, 511. T seat, 512. Guide vertical rod, 513. Notch, 514. Square hole shaft, 515. Power round head arm, 516. Arc surface L block, 517. Retaining spring. DETAILED DESCRIPTION

[0030] In order to clearly illustrate the technical features of the present solution, the present invention is described in detail below through specific implementation methods and in combination with the accompanying drawings. The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. In addition, the present invention may repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. It should be noted that the components illustrated in the accompanying drawings are not necessarily drawn to scale. The present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitations on the present invention. The orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 11As shown, embodiment 1: a sealing device for a submarine tunnel connection, comprising: a tunnel connection component 2, a sealing component 3 and a tunnel component 1; the tunnel component 1 comprises a main tunnel 11, the two ends of the main tunnel 11 are respectively connected to an inner lap plate 13, and the two ends of the main tunnel 11 are respectively provided with a sealing groove 12; the tunnel connection component 2 comprises a connecting tunnel 21, the two ends of the connecting tunnel 21 are respectively provided with a storage groove 22, the connecting tunnel 21 bearing is connected to a screw rod 25, and the connecting tunnel 21 is connected to a guide round rod 24; the sealing component 3 comprises two outer lap plates 31, the two outer lap plates The two outer lap plates 31 are connected to the sealing plates 32 respectively, the sealing plates 32 match the sealing groove 12, the outer lap plates 31 match the inner lap plates 13, and the two outer lap plates 31 are respectively arranged in the corresponding storage grooves 22; the two outer lap plates 31 are respectively connected to the two cylinders 36, the two reverse threads of the screw rod 25 are respectively threadedly connected to the corresponding cylinders 36, and the two ends of the screw rod 25 are respectively arranged in the corresponding outer lap plates 31, and the guide round rod 24 passes through the other two cylinders 36, and the two ends of the guide round rod 24 are respectively arranged in the corresponding outer lap plates 31. By adopting the tunnel connection component 2 and the sealing component 3, it is convenient to realize the segmented installation of the tunnel component 1, and the relevant components are prefabricated, which is convenient for rapid installation. Through the dredging project, the seabed of the pre-laid tunnel is leveled and dredged to form a base groove that can be adapted to the tunnel prefabricated parts. Then, the adjacent tunnel components 1 and tunnel connection components 2 are installed. When the tunnel components 1 need to be replaced later, the sealing components 3 can be disconnected to facilitate the replacement of the tunnel components 1. Waterproof walls are made at both ends of the main tunnel 11, and water pumps are installed. The water pumps are used to pump out the seawater in the area composed of the tunnel connection components 2, the sealing components 3 and the tunnel components 1 during the entire installation process, so as to facilitate the installation. The surface material of the outer lap plate 31 and the sealing plate 32 is rubber, which is convenient for sealing and waterproofing.

[0032] It also includes a power assembly 4, which includes a first driven bevel gear 41, the screw 25 is connected to the first driven bevel gear 41, the first driven bevel gear 41 is meshed with a first active bevel gear 42, the first active bevel gear 42 is connected to a vertical shaft 43, the connecting tunnel 21 is connected to a sealing column 28, and the vertical shaft 43 is connected to the sealing column 28 by a bearing. By using the meshing of bevel gears, it is convenient to drive the screw 25 to rotate and realize the movement of related components.

[0033] The sealing column 28 is provided with a circular groove 29, and the vertical shaft 43 is connected to the bolt head 44, and the bolt head 44 is arranged in the circular groove 29. It is convenient to use a tool to rotate the bolt head 44 to realize the rotation of the vertical shaft 43. When this method is adopted, the circular groove 29 is sealed after the installation is completed.

[0034] Alternatively, a sealed motor cover may be installed on the connecting tunnel 21 , a motor may be installed in the motor cover, and the output shaft of the motor may be connected to the vertical shaft 43 , so as to realize the rotation of the vertical shaft 43 .

[0035] The main tunnel 11 is provided with a first water outlet 16 corresponding to each sealing groove 12 , so as to facilitate the discharge of seawater in the sealing groove 12 .

[0036] The prefabricated waterproof wall in the main tunnel 11 is removed after installation.

[0037] The workflow of this embodiment is: Through dredging works, the seabed of the pre-laid tunnel is leveled and dredged to form a foundation trench that can be compatible with the prefabricated tunnel components.

[0038] Use the equipment to align the adjacent tunnel components 1 and tunnel connection components 2 so that the inner lap plate 13 is flush with the connection tunnel 21 .

[0039] The bolt head 44 is rotated by using equipment, and the bolt head 44 drives the vertical shaft 43 to rotate, and the vertical shaft 43 drives the first active bevel gear 42 to rotate, and the first active bevel gear 42 drives the first driven bevel gear 41 and the screw 25 to rotate, and the screw 25 drives the two cylinders 36 to move, and the two cylinders 36 drive the outer lap plate 31 to move along the storage groove 22, and the outer lap plate 31 contacts the inner lap plate 13 and moves along it, and the outer lap plate 31 drives the sealing plate 32 to move, and the outer lap plate 31 drives the other two cylinders 36 to move along the guide round rod 24, so that the sealing plate 32 is inserted into the storage groove 22, and the water in the storage groove 22 is squeezed out from the first water outlet 16 into the closed area formed by the waterproof wall of the main tunnel 11 and the connecting tunnel 21, and a water pump is installed on the waterproof wall to realize the extraction of water in the closed area to between the two waterproof walls of the main tunnel 11.

[0040] Embodiment 2: This embodiment is further elaborated on the basis of embodiment 1, and further includes an auxiliary connection component 5, the auxiliary connection component 5 includes an inspection box 55, the connection tunnel 21 is provided with two groups of symmetrical slide grooves 23, the connection tunnel 21 is respectively connected to the fixed shaft 26 corresponding to each of the slide grooves 23, each of the outer lap plate 31 is respectively connected to the block 34, each of the block 34 is respectively connected to the moving shaft 33, the inspection box 55 is bearing-connected to the intermediate shaft 59, the intermediate shaft 59 is connected to the center of the middle connecting rod 51, the middle connecting rod 51 is rotatably connected to the outer connecting rod 52, the outer connecting rod 52 is rotatably connected to the moving shaft 33, the middle connecting rod 51 is rotatably connected to the inner connecting rod 58, the inner connecting rod 58 is rotatably connected to the fixed shaft 26, the inspection box 55 is connected to the round pipe column 53, and the main tunnel 11 is provided with a stepped hole 14 corresponding to the round pipe column 53. By adopting the round pipe column 53, after it is inserted into the stepped hole 14, a sealed connection is achieved, so that the connection between the sealing component 3 and the tunnel component 1 is more stable.

[0041] The connecting tunnel 21 is provided with a second water outlet hole 15 corresponding to each of the step holes 14 , so as to facilitate the discharge of seawater in the step holes 14 .

[0042] The connection tunnel 21 is connected to the sealing strip plate 27 corresponding to each group of symmetrical sliding grooves 23 .

[0043] The connecting tunnel 21 is provided with perforations matching the circular tube column 53 .

[0044] The workflow of this embodiment is: The outer lap plate 31 drives the block 34 and the movable shaft 33 to move, the movable shaft 33 drives the outer connecting rod 52 to swing, the outer connecting rod 52 drives the middle connecting rod 51 to swing, the middle connecting rod 51 drives the intermediate shaft 59 to rotate and move at the same time, the middle connecting rod 51 drives the inner connecting rod 58 to swing, the intermediate shaft 59 drives the maintenance box 55 to move, and the maintenance box 55 drives the round tube column 53 to move, so that the round tube column 53 is inserted into the stepped hole 14.

[0045] Embodiment 3: This embodiment is further elaborated on the basis of embodiment 2, the intermediate shaft 59 is connected to the second active bevel gear 57, the maintenance box 55 is connected to the central shaft of the second driven bevel gear 56 by a bearing, the second active bevel gear 57 meshes with the second driven bevel gear 56, the central shaft of the second driven bevel gear 56 is connected to the square shaft 54, the square shaft 54 ​​is arranged in the square hole of the square hole shaft 514, the circular tube column 53 is provided with a track groove 510, each of the movable shafts 33 is respectively arranged in the corresponding track groove 510, each of the movable shafts 33 is respectively connected to the circular tube shaft 35, the square hole shaft 514 is connected to the circular tube shaft 35 by a bearing, the circular The tube column 53 is connected to the T-seat 511, and the T-seat 511 is connected to the guide vertical rod 512. The circular tube column 53 is provided with a symmetrical notch 513. The T-seat 511 is connected to a symmetrical retaining spring 517. The symmetrical retaining springs 517 are respectively encircled by the guide vertical rod 512. The symmetrical retaining springs 517 are respectively connected to an arcuate L block 516. The two ends of the guide vertical rod 512 are respectively arranged in the corresponding arcuate L blocks 516. The symmetrical arcuate L blocks 516 are respectively arranged in the corresponding notches 513. The square hole shaft 514 is connected to a power round head arm 515, and the power round head arm 515 matches the symmetrical arcuate L block 516. By adopting bevel gear meshing and square hole shaft 514 bearing to connect the round tube shaft 35, the power round head arm 515 can be moved and rotated at the same time, so that it first contacts the narrow bottom surface of the arc surface L block 516, drives the arc surface L block 516 to move along the guide vertical rod 512, stretches the retaining spring 517, and after the power round head arm 515 is out of contact with the narrow bottom surface of the arc surface L block 516, the retaining spring 517 is restored for a period of time, so that the power round head arm 515 contacts the wide bottom surface of the arc surface L block 516, so that the arc surface L block 516 exceeds the notch 513 and is close to the stepped surface of the stepped hole 14. Assuming that the sealing plate 32 moves outward, the power round head arm 515 now swings in the opposite direction and moves at the same time. After contacting the step surface of the arc surface L block 516, it cannot continue to move, which will hinder the sealing plate 32 from continuing to move outward, thereby preventing the sealing plate 32 from escaping from the sealing groove 12. When replacing the tunnel component 1, it is necessary to open the maintenance box 55, remove the second driven bevel gear 56, rotate the square shaft 54, make the power round head arm 515 horizontal, keep the spring 517 restored, reset the arc surface L block 516, fix the square shaft 54 ​​to prevent it from rotating, and then remove the tunnel component 1 to allow the round pipe column 53 to smoothly detach from the stepped hole 14.

[0046] The workflow of this embodiment is: The round tube column 53 drives the T seat 511, the guide vertical rod 512, the arc surface L block 516 and the retaining spring 517 to move, the intermediate shaft 59 drives the second active bevel gear 57 to move and rotate at the same time, the maintenance box 55 drives the second driven bevel gear 56 and the square shaft 54 ​​to move, the moving shaft 33 drives the round tube shaft 35, the square hole shaft 514 and the power round head arm 515 to move, the second active bevel gear 57 drives the second driven bevel gear 56, the square shaft 54 ​​and the square hole shaft 514 to rotate, and the square hole shaft 514 drives the power round head arm 515 to swing, so that it contacts the narrow bottom surface of the arc surface L block 516, as shown in FIG. Fig. 9 As shown, the arc surface L block 516 is driven to move along the guide vertical rod 512, and the retaining spring 517 is stretched. After the power round head arm 515 is out of contact with the narrow bottom surface of the arc surface L block 516, the retaining spring 517 is restored for a period of time, so that the power round head arm 515 is in contact with the wide bottom surface of the arc surface L block 516, so that the arc surface L block 516 exceeds the notch 513, as shown in FIG. Figure 8 shown.

[0047] The relevant components of the device are prefabricated, which is convenient for rapid installation. Through dredging engineering, the seabed of the pre-laid tunnel is leveled and dredged to form a base trench that can adapt to the tunnel prefabricated components. Then the adjacent tunnel components 1 and tunnel connection components 2 are installed, the outer lap plate 31 overlaps the inner lap plate 13, and the sealing plate 32 is inserted into the sealing groove 12 to achieve a sealed connection. When the tunnel component 1 needs to be replaced later, the sealing component 3 is disconnected to facilitate the replacement of the tunnel component 1.

[0048] The device adopts a connecting rod rotation connection mode, wherein the arc surface L block 516 follows the movement of the middle connecting rod 51, and the power round head arm 515 follows the movement of the outer connecting rod 52, so that the movement speed and displacement of the power round head arm 515 are greater than the arc surface L block 516. By adopting bevel gear meshing and the square hole shaft 514 bearing connecting the round tube shaft 35, the power round head arm 515 can move and rotate at the same time, so that it first contacts the narrow bottom surface of the arc surface L block 516, drives the arc surface L block 516 to move along the guide vertical rod 512, stretches the holding spring 517, and then moves. After the power round head arm 515 is out of contact with the narrow bottom surface of the arc surface L block 516, the retaining spring 517 is restored for a while, so that the power round head arm 515 is in contact with the wide bottom surface of the arc surface L block 516, so that the arc surface L block 516 exceeds the step surface of the notch 513 close to the step hole 14. Assuming that the sealing plate 32 moves outward, the power round head arm 515 swings in the opposite direction and moves at the same time. After contacting the step surface of the arc surface L block 516, it cannot continue to move, which will hinder the sealing plate 32 from continuing to move outward, thereby preventing the sealing plate 32 from escaping from the sealing groove 12.

[0049] Although the above describes the specific implementation mode of the invention in conjunction with the drawings, it is not intended to limit the scope of protection of the invention. Based on the technical solution of the present invention, various modifications or variations that can be made by those skilled in the art without creative work are still within the scope of protection of the present invention.

Claims

1. A sealing device for a submarine tunnel joint, characterized in that: include: Tunnel connection component (2), sealing component (3) and tunnel component (1); The tunnel assembly (1) comprises a main tunnel (11), both ends of the main tunnel (11) are respectively connected to inner lap plates (13), and both ends of the main tunnel (11) are respectively provided with sealing grooves (12); The tunnel connection assembly (2) comprises a connection tunnel (21), storage grooves (22) are respectively provided at both ends of the connection tunnel (21), a bearing of the connection tunnel (21) is connected to a screw rod (25), and the connection tunnel (21) is connected to a guide round rod (24); The sealing assembly (3) comprises two outer lap plates (31), the two outer lap plates (31) are respectively connected to a sealing plate (32), the sealing plate (32) matches the sealing groove (12), the outer lap plates (31) match the inner lap plates (13), and the two outer lap plates (31) are respectively arranged in the corresponding storage grooves (22); The two outer lap plates (31) are respectively connected to two cylinders (36); the two reverse threads of the screw rod (25) are respectively threadedly connected to the corresponding cylinders (36); the two ends of the screw rod (25) are respectively arranged in the corresponding outer lap plates (31); the guide round rod (24) passes through the other two cylinders (36); and the two ends of the guide round rod (24) are respectively arranged in the corresponding outer lap plates (31).

2. The sealing device for a submarine tunnel joint according to claim 1 is characterized in that: The invention also comprises an auxiliary connection assembly (5), wherein the auxiliary connection assembly (5) comprises an inspection box (55), the connection tunnel (21) is provided with two groups of symmetrical slide grooves (23), the connection tunnel (21) is respectively connected to a fixed shaft (26) corresponding to each of the slide grooves (23), each of the outer lap plates (31) is respectively connected to a block (34), each of the blocks (34) is respectively connected to a movable shaft (33), the inspection box (55) is bearing-connected to an intermediate shaft (59), the intermediate shaft (59) is connected to the center of a middle connecting rod (51), the middle connecting rod (51) is rotationally connected to an outer connecting rod (52), the outer connecting rod (52) is rotationally connected to the movable shaft (33), the middle connecting rod (51) is rotationally connected to an inner connecting rod (58), the inner connecting rod (58) is rotationally connected to the fixed shaft (26), the inspection box (55) is connected to a round pipe column (53), and the main tunnel (11) is provided with a stepped hole (14) corresponding to the round pipe column (53).

3. The sealing device for a submarine tunnel joint according to claim 1 is characterized in that: The intermediate shaft (59) is connected to the second active bevel gear (57); the maintenance box (55) is connected to the central shaft of the second driven bevel gear (56) by a bearing; the second active bevel gear (57) meshes with the second driven bevel gear (56); the central shaft of the second driven bevel gear (56) is connected to the square shaft (54); the square shaft (54) is arranged in the square hole of the square hole shaft (514); the circular tube column (53) is provided with a track groove (510); each of the movable shafts (33) is respectively arranged in the corresponding track groove (510); each of the movable shafts (33) is respectively connected to the circular tube shaft (35); the square hole shaft (514) is connected to the circular tube shaft (35) by a bearing; the circular tube column (53) is connected to the T seat (511); ), the T seat (511) is connected to the guide vertical rod (512), the circular tube column (53) is provided with a symmetrical notch (513), the T seat (511) is connected to a symmetrical retaining spring (517), the symmetrical retaining springs (517) are respectively encircled by the guide vertical rod (512), the symmetrical retaining springs (517) are respectively connected to the arc surface L blocks (516), the two ends of the guide vertical rod (512) are respectively arranged in the corresponding arc surface L blocks (516), the symmetrical arc surface L blocks (516) are respectively arranged in the corresponding notches (513), the square hole shaft (514) is connected to the power round head arm (515), and the power round head arm (515) matches the symmetrical arc surface L blocks (516).

4. The sealing device for a submarine tunnel joint according to claim 2 is characterized in that: The connecting tunnel (21) is provided with a second water outlet hole (15) corresponding to each of the stepped holes (14).

5. The sealing device for a submarine tunnel joint according to claim 2 is characterized by: The connection tunnel (21) is connected to the sealing strip plate (27) corresponding to each group of symmetrical sliding grooves (23).

6. The sealing device for a submarine tunnel joint according to claim 1 is characterized by: The invention also comprises a power assembly (4), wherein the power assembly (4) comprises a first driven bevel gear (41), the screw rod (25) is connected to the first driven bevel gear (41), the first driven bevel gear (41) is meshed with a first driving bevel gear (42), the first driving bevel gear (42) is connected to a vertical shaft (43), the connecting tunnel (21) is connected to a sealing column (28), and the vertical shaft (43) is connected to the sealing column (28) by a bearing.

7. The sealing device for a submarine tunnel joint according to claim 6 is characterized by: The sealing column (28) is provided with a circular groove (29), the vertical shaft (43) is connected to a bolt head (44), and the bolt head (44) is arranged in the circular groove (29).

8. The sealing device for a submarine tunnel joint according to claim 1 is characterized by: The main tunnel (11) is respectively provided with a first water outlet hole (16) corresponding to each of the sealing grooves (12).

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