Lateral sealing structure of underwater welding channel

Abstract

The utility model relates to the technical field of ship and ocean engineering construction and repair, in particular to an underwater closure and underwater welding channel lateral sealing structure used in the floating body segmented construction process of ships, ocean engineering and the like, the lateral sealing structure is connected with an underwater welding channel for sealing, a dock broadside is used, an adjusting structure and a spiral lead screw are used for adjusting, and the underwater closure and underwater welding channel lateral sealing structure is formed. Therefore, sealing of the underwater welding channel in the transverse direction, the lateral direction and the bottom direction is achieved, and the underwater sealing effect is greatly improved. The lateral sealing structure is used for sealing in the transverse direction, the lateral direction and the vertical direction through a longitudinal wall sealing rubber strip, a lateral sealing rubber strip and a bottom sealing rubber strip, so that the beneficial effects that the repair construction capacity of ship and ocean engineering construction is improved; the segmented stability of the floating body is improved, and the underwater construction safety is guaranteed; the lateral sealing structure is tightly attached to the side face (broadside) of the floating body structure; cost is low, production and construction are convenient, and efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of construction technology of floating structure in ship repair and construction, marine engineering, etc., and particularly relates to a lateral structure of underwater welding channel. Background Technology

[0002] In the construction, repair, and operation of underwater structures (underwater floating structures) such as ships and marine engineering projects, the construction and repair of floating structures often require a shift from land-based construction to underwater work, or the floating structure may already be operating underwater, making it difficult to transfer to land for assembly, repair, and other construction operations. Furthermore, the side structures of floating structures require underwater construction, assembly, and welding operations. Underwater construction operations suffer from poor safety, welding difficulties, and compromised construction quality. Therefore, it is necessary to design an underwater welding channel lateral structure that forms a laterally sealed space within the construction area, enabling construction operations to be carried out within the underwater welding channel. This technology allows for the transformation of underwater operations into watertight underwater environmental construction work.

[0003] Patent CN109048006B discloses a partial sealing device and method for underwater welding in emergency ship repair. The device includes a sealing cover and a backpack assembly. The sealing cover includes a base plate and four side plates fixedly mounted on the base plate. A sealing ring is fixedly connected to the outer side of the four side plates at the end furthest from the base plate. A welding torch unit and a welding rod unit are respectively installed on two opposite side plates. The welding rod unit includes a welding rod fixing rod, one end of which extends into the sealing cover and is fixedly connected to a welding rod. The welding torch unit includes a welding torch tube, one end of which extends into the sealing cover and is connected to a welding torch head. Several one-way valves are also provided on the base plate. The backpack assembly includes a backpack body, which contains a protective gas cylinder and a fuel cylinder. The protective gas cylinder is connected to the sealing cover through a gas guide pipe, and the fuel cylinder is connected to the welding torch tube through a welding torch gas supply pipe.

[0004] This utility model has technical difficulties such as low safety factor and inconvenient construction, which leads to low construction efficiency and high cost. Utility Model Content

[0005] The purpose of this invention is to provide a lateral structure for an underwater welding channel, which aims to solve the technical problems of low safety factor, inconvenient construction and high cost in the prior art.

[0006] To achieve the above objectives, this utility model provides a lateral sealing structure for an underwater welding channel, including a dock, an underwater welding channel, a lateral sealing structure, an adjusting structure, and a screw rod. The dock has a dock side for connecting the underwater welding channel. The main body of the underwater welding channel includes a longitudinal wall, a transverse wall, and a bottom. The dock side connects to the underwater welding channel, forming a grid-shaped sealed space with a height of h. The lateral sealing structure is fixedly connected between the two, and the adjusting structure is installed on the lateral sealing structure. The distance between the lateral sealing structure and the longitudinal wall of the underwater welding channel is adjustable at both ends. The two ends of the spiral screw are respectively connected to the longitudinal wall of the underwater welding channel and the lateral sealing structure, and the distance between the lateral sealing structure and the side of the dock is adjusted to make them fit tightly. The lateral sealing structure includes a lateral sealing structure panel, a lateral sealing strip and a longitudinal wall sealing strip. The lateral sealing strip and the longitudinal wall sealing strip are provided on the lateral sealing structure panel. The lateral sealing strip seals and connects to the side of the dock, and the longitudinal wall sealing strip seals and connects to the longitudinal wall of the underwater welding channel.

[0007] The lateral sealing structure is connected to the longitudinal wall of the underwater welding channel to form a transverse sealing structure. The lateral sealing structure is connected to the side of the dock to form a sealing structure. A bottom sealing strip is provided on the bottom of the underwater welding channel and connected to the lateral sealing structure to form a vertical sealing structure, thereby forming a sealing structure in three directions.

[0008] Optionally, the lateral sealing structure is a flat box structure with a length, width, and height of L, a, and h, respectively. The design ranges of L, a, and h are 500mm~1000mm, 200mm~400mm, and 2m~10m, respectively. The lateral sealing structure also includes a lateral sealing structure web, a first pressure plate, a second pressure plate, a lateral pressure plate, a top-tightening ear plate, an upper fixing part, and a lower fixing part. The first pressure plate and the second pressure plate press the longitudinal wall sealing strip onto the lateral sealing structure panel. The lateral pressure plate fixes the lateral sealing strip onto the lateral sealing structure panel. The upper fixing part and the lower fixing part are respectively located at the upper and lower ends of the lateral sealing structure. At least three top-tightening ear plates are provided between the upper fixing part and the lower fixing part.

[0009] Optionally, the clamping lug includes a lug, a bolt, and a connecting seat plate. The lug and the connecting seat plate are integral. The bolt is installed in the bolt hole of the connecting seat. The connecting seat plate is welded and fixed to the longitudinal wall of the underwater welding channel and the lateral sealing structure, respectively, and is connected to both ends of the spiral screw.

[0010] Optionally, the spiral screw adopts a 10-ton to 20-ton shackle with a stroke of not less than 100mm, and has at least three corresponding to the ear plate in the vertical direction with height spacing of h1, h2, and h3 respectively. One end of the spiral screw is fixedly connected to the longitudinal wall of the underwater welding channel, and the other end is fixedly connected to the lateral sealing structure. The position of the lateral sealing structure can be adjusted laterally by adjusting the spiral screw.

[0011] Optionally, the longitudinal wall sealing strip is designed with a double-wave structure, with a width value b of 100–300 mm, a wave height of 100 mm, and a thickness of 10–30 mm; the lateral sealing strip is rectangular in shape, with a length and width of 50–100 mm; and the main material of both the longitudinal wall sealing strip and the lateral sealing strip is sealing rubber with a tensile strength ≥ 150 kg / cm². 2 .

[0012] Optionally, the adjustment structure includes a top adjustment structure and a bottom adjustment structure, both of which are screw adjustment structures. The screws are used to adjust and press the lateral sealing structure against the longitudinal wall of the underwater welding channel.

[0013] Optionally, the top adjustment structure includes a top reinforcing plate, a top plate, a top side plate, and an adjusting screw. The top reinforcing plate, the top plate, and the top side plate are respectively welded to fix the longitudinal wall of the underwater welding channel, and the gap between the longitudinal wall of the underwater welding channel and the lateral sealing structure can be adjusted by the adjusting screw.

[0014] Optionally, the bottom adjustment structure includes a bottom reinforcing plate, a bottom plate, a bottom side plate, and an adjusting screw. The bottom reinforcing plate, the bottom plate, and the bottom side plate are respectively welded to fix the longitudinal wall of the underwater welding channel. The gap between the longitudinal wall of the underwater welding channel and the lateral sealing structure can be adjusted by the adjusting screw. The bottom sealing strip is also arranged on the bottom adjustment structure. The length and width h4 of the bottom sealing strip are 50-150mm.

[0015] The underwater welding channel lateral sealing structure provided in this embodiment of the utility model has at least one of the following technical effects: the design method of the underwater welding channel lateral sealing structure can effectively protect the underwater construction float and prevent structural damage to the underwater construction float during the construction process; the structure is simple, easy to assemble, convenient for construction, and improves efficiency; it can significantly improve the construction effect of large underwater construction floats, overcome the limitations of water depth and other conditions, and enable the float to be directly constructed underwater without land repair or construction, thus shortening the construction and repair cycle; it can effectively meet the all-weather construction requirements of underwater construction floats and meet the limitations of safe construction conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is an elevation view of the lateral sealing structure of the present invention;

[0018] Figure 2 This is a plan view of the lateral sealing structure of the present invention;

[0019] Figure 3 This is a cross-sectional view of the lateral sealing structure of the present invention;

[0020] Figure 4 This is an elevation view of the lateral sealing and tightening structure of the present invention;

[0021] Figure 5 This is a structural diagram of the ear plate of the present invention;

[0022] Figure 6 This is a diagram showing the lateral sealing arrangement of the present invention;

[0023] Figure 7 This is a side sealing elevation view of the present invention;

[0024] Figure 8 This is a top view of the lateral seal of the present invention.

[0025] The reference numerals in the figures are as follows: 100, dock; 110, side; 200, underwater welding channel; 210, longitudinal wall of underwater welding channel; 220, transverse wall of underwater welding channel; 230, bottom of underwater welding channel; 300, lateral sealing structure; 310, web of lateral sealing structure; 320, panel of lateral sealing structure; 330, first pressure plate; 340, second pressure plate; 350, lateral pressure plate; 360, lateral sealing strip; 370, longitudinal wall sealing strip; 380. 390. Upper fixing part; 391. Lower fixing part; 400. Top adjustment structure; 410. Top reinforcing plate; 420. Top plate; 430. Top side plate; 440. Top adjusting screw; 500. Bottom adjustment structure; 510. Bottom reinforcing plate; 520. Bottom plate; 530. Bottom side plate; 540. Bottom adjusting screw; 600. Bottom sealing strip; 700. Helical screw; 381. Ear plate; 382. Bolt; 383. Connecting seat plate. Detailed Implementation

[0026] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the embodiments of this utility model, it should be understood that if the embodiments of this utility model involve directional indications, such as up, down, left, right, front, back, inside, outside, etc., the orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the embodiments of this utility model and simplifying the description, and is 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, it should not be construed as a limitation of this utility model.

[0028] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0030] In one embodiment of this utility model, such as Figure 1-8 As shown, a lateral structure for an underwater welding channel is provided, wherein one type of lateral sealing structure for the underwater welding channel is:

[0031] Figures 6 to 8A lateral sealing structure for an underwater welding channel includes a dock 100, an underwater welding channel 200, a lateral sealing structure 300, an adjusting structure, and a screw 700. The dock 100 has a dock side 110 for connecting the underwater welding channel 200. The underwater welding channel 200 mainly includes a longitudinal wall 210, a transverse wall 220, and a bottom 230. The dock side 110 is connected to the underwater welding channel 200 to form a grid-shaped sealed space with a height of h. The lateral sealing structure 300 is fixedly connected between the two. The adjusting structure is installed at both ends of the lateral sealing structure 300 for movable adjustment. The distance between the lateral sealing structure 300 and the longitudinal wall 210 of the underwater welding channel is adjusted by connecting the two ends of the spiral screw 700 to the longitudinal wall 210 of the underwater welding channel and the lateral sealing structure 300, and adjusting the action of the lateral sealing structure 300 and the dock side 110 to make them fit and press tightly. The lateral sealing structure 300 includes a lateral sealing structure panel 320, a lateral sealing strip 360 and a longitudinal wall sealing strip 370. The lateral sealing strip 360 and the longitudinal wall sealing strip 370 are provided on the lateral sealing structure panel 320. The lateral sealing strip 360 seals and connects to the dock side 110, and the longitudinal wall sealing strip 370 seals and connects to the longitudinal wall 210 of the underwater welding channel.

[0032] Figures 7-8 The lateral sealing structure 300 is connected to the longitudinal wall 210 of the underwater welding channel to form a transverse sealing structure. The lateral sealing structure 300 is connected to the side of the dock 110 to form a lateral sealing structure. A bottom sealing strip 600 is provided on the bottom 230 of the underwater welding channel and connected to the lateral sealing structure 300 to form a vertical sealing structure, thus forming a sealing structure in three directions.

[0033] like Figures 1-3The lateral sealing structure 300 is a flat box structure with length, width, and height L, a, and height respectively. The design values ​​of L, a, and h are 500mm~1000mm, 200mm~400mm, and 2m~10m respectively. Its main structure also includes a lateral sealing structure web 310, a first pressure plate 330, a second pressure plate 340, a lateral pressure plate 350, a top clamping ear plate 380, an upper fixing part 390, and a lower fixing part 391. The lateral sealing structure panel 320 and the lateral sealing structure web 310 form a flat box steel structure made of steel plate material. In this embodiment, Q235 material is selected. The first pressure plate 330 and the second pressure plate 340 seal the longitudinal wall sealing strip 3. The 70 is pressed onto the side sealing structure panel 320. The side pressure plate 350 fixes the side sealing strip 360 onto the side sealing structure panel 320. The upper fixing part 390 and the lower fixing part 391 are respectively fixed at the upper and lower ends of the side sealing structure 300. At least three clamping ear plates 380 are provided between the upper fixing part 390 and the lower fixing part 391. In this embodiment, the number of clamping ear plates 380 is set to 3, and the number of screw rods 700 is also set to 3. That is, the number and position of clamping ear plates 380 correspond to the screw rods 700. The upper fixing part 390 and the lower fixing part 391 are respectively provided at the upper and lower ends of the side sealing structure 300.

[0034] like Figures 1-3 The longitudinal sealing strip 370 and the lateral sealing strip 360 combine to form a wave-shaped and rectangular hybrid sealing structure that provides both lateral and transverse sealing. The longitudinal sealing strip 370 and the lateral sealing strip 360 are lateral and transverse sealing strips, respectively. The longitudinal sealing strip 370 connects to and seals the longitudinal wall 210 of the underwater welding channel, while the lateral sealing strip 360 connects to and seals the dock side 110 structure. The longitudinal sealing strip 370 is designed with a double-wave structure, with a width b of 100–300 mm, a wave height of approximately 100 mm, and a thickness of approximately 10–30 mm, ensuring sufficient lateral compression stroke while forming two sealing structures. The longitudinal sealing strip 370 is fixed using a first pressure plate 330 and a second pressure plate 340. The lateral sealing strip 360 is rectangular, with a length and width of 50–150 mm, and is fixed using a lateral pressure plate 350. The main material of the longitudinal wall sealing strip 370 and the lateral sealing strip 360 is sealing rubber. The main performance indicators of the sealing rubber are: tensile strength ≥150Kg / cm2; good resilience, good tear resistance, and compression amount of 20~30mm when subjected to pressure of 1.5t / m.

[0035] like Figure 5As shown, the clamping lug 380 includes a lug 381, a bolt 382, ​​and a connecting seat plate 383. The lug 381 and the connecting seat plate 383 are an integral structure. The bolt 382 is installed in the bolt hole of the connecting seat plate 383. The connecting seat plate 383 is welded to the longitudinal wall 210 of the underwater welding channel and the lateral sealing structure 300, respectively. Then, the two ends of the screw rod 700 are connected to each other. In this way, the lateral sealing structure 300 can be adjusted to be tightly attached to the side 110 of the dock using the screw rod 700.

[0036] Preferably, the screw 700 uses a 10-20 ton screw shackle with a stroke of not less than 100 mm to ensure sufficient adjustment stroke; the height spacing of the screw 700 is h1, h2, and h3 respectively. One end of each screw 700 is fixedly connected to the underwater welding channel 200, and the other end is fixedly connected to the side sealing structure 300 through the clamping lug 380. Therefore, by adjusting the screw 700, the position of the side sealing structure 300 can be adjusted laterally.

[0037] like Figure 4 As shown, the adjustment structure includes a top adjustment structure 400 and a bottom adjustment structure 500. Both the top adjustment structure 400 and the bottom adjustment structure 500 adopt screw adjustment structure and are respectively installed on the longitudinal wall 210 of the underwater welding channel through the upper fixing part 390 and the lower fixing part 391. By using the adjustment structure, the lateral sealing structure 300 and the longitudinal wall 210 of the underwater welding channel can be pressed together.

[0038] Specifically, the top adjustment structure 400 includes a top reinforcing plate 410, a top plate 420, a top side plate 430, and a top adjusting screw 440. The top reinforcing plate 410, top plate 420, and top side plate 430 are respectively fixedly welded to the upper end of the longitudinal wall 210 of the underwater welding channel. Then, the gap between the longitudinal wall 210 of the underwater welding channel and the lateral sealing structure 300 is adjusted by the adjusting screw 440. Similarly, the bottom adjustment structure 500 includes a bottom reinforcing plate 510, a bottom plate 520, a bottom side plate 530, and a bottom adjusting screw 540. 40. The bottom reinforcing plate 510, bottom plate 520, and bottom side plate 530 are welded and fixed to the lower end of the underwater welding channel longitudinal wall 210. The bottom sealing strip 600 is simultaneously arranged on the bottom adjustment structure 500. Then, the gap between the underwater welding channel longitudinal wall 210 and the side sealing structure 300 is adjusted by operating the bottom adjusting screw 540. That is, by using the adjustment structure to press the side sealing structure 300 against the underwater welding channel longitudinal wall 210 and the bottom 230 of the underwater welding channel, the lateral sealing effect and the bottom sealing effect are achieved.

[0039] Preferably, the length and width h4 of the bottom sealing strip 600 are 50-150mm respectively, so as to be sufficient to fill the gap at the bottom 230 of the underwater welding channel.

[0040] The specific working principle is as follows: The dock side 110 of the floating body (dock) is connected to the underwater welding channel 200 as a whole, and the two are sealed by the lateral sealing structure 300. Specifically, the underwater welding channel longitudinal wall 210, underwater welding channel transverse wall 220, underwater welding channel bottom 230 and the dock side 110 are arranged with the dock side 110 through the lateral sealing structure 300 to form a grid-shaped structure, which together with the dock side 110 forms an underwater sealed construction space. The length and width of this underwater sealed construction space are y1 and y2 respectively, both with a design value greater than 2m, and the depth h is 10m.

[0041] The lateral sealing structure 300 is connected to the underwater welding channel 200 to form a transverse sealing structure. The lateral sealing structure 300 is connected to the dock side 110 to achieve lateral sealing. The bottom 230 of the underwater welding channel is provided with a bottom sealing strip 600 connected to the lateral sealing structure 300 to form a vertical sealing structure, thereby forming a three-way seal.

[0042] The underwater welding channel longitudinal wall 210 and the lateral sealing structure 300 are adjusted by a screw rod 700. One end of the screw rod 700 is fixedly connected to the underwater welding channel longitudinal wall 210, and the other end is fixedly connected to the lateral sealing structure 300 through a clamping lug 380. By adjusting the screws, the lateral sealing structure 300 is pressed tightly against the dock side 110 structure, and a firm lateral seal is achieved.

[0043] Furthermore, the top adjustment structure 400 and the bottom adjustment structure 500 are respectively located at the upper and lower ends of the sealing structure 300, correspondingly connecting the upper fixing part 390 and the lower fixing part 391. Specifically, the top adjustment structure 400 is fixedly welded to the upper end of the longitudinal wall 210 of the underwater welding channel, and the sealing gap between the longitudinal wall 210 of the underwater welding channel and the side sealing structure 300 is adjusted by operating the top adjustment screw 440 to achieve an effective sealing effect; the bottom adjustment structure 500 is fixedly welded to the lower end of the longitudinal wall 210 of the underwater welding channel, and the bottom sealing strip 600 is simultaneously arranged on the bottom adjustment structure 500, and is pressed tightly by the bottom adjustment screw 540, thereby sealing the underwater welding channel 200 with the bottom of the dock side 110.

[0044] By adjusting the structure, the gap between the lateral sealing structure 300 and the longitudinal wall 210 of the underwater welding channel can be varied, achieving the effects of lateral sealing and bottom sealing.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lateral sealing structure for an underwater welding channel, the lateral sealing structure (300) being used for the connection and sealing of a dock (100) and an underwater welding channel (200), characterized in that, The underwater welding channel lateral sealing structure (300) is equipped with an adjustment structure and a screw rod (700). The dock (100) is equipped with a dock side (110) for connecting the underwater welding channel (200). The underwater welding channel (200) mainly includes an underwater welding channel longitudinal wall (210), an underwater welding channel transverse wall (220), and an underwater welding channel bottom (230). The dock side (110) is connected to the underwater welding channel (200) to form a grid-shaped sealed space with a height of h. The underwater welding channel lateral sealing structure (300) is fixedly connected between the two. The adjustment structure is installed at both ends of the lateral sealing structure (300) to flexibly adjust the connection between the underwater welding channel lateral sealing structure (300) and the underwater welding channel longitudinal wall (210). The distance between the two ends of the spiral screw (700) is 0), and the distance between the underwater welding channel longitudinal wall (210) and the underwater welding channel lateral sealing structure (300) is adjusted so that they fit tightly. The underwater welding channel lateral sealing structure (300) includes a lateral sealing structure panel (320), a lateral sealing strip (360) and a longitudinal wall sealing strip (370). The lateral sealing strip (360) and the longitudinal wall sealing strip (370) are provided on the lateral sealing structure panel (320). The lateral sealing strip (360) is sealed to the dock side (110), and the longitudinal wall sealing strip (370) is sealed to the underwater welding channel longitudinal wall (210). The underwater welding channel lateral sealing structure (300) is connected to the underwater welding channel longitudinal wall (210) to form a transverse sealing structure, and the underwater welding channel lateral sealing structure (300) is connected to the dock side (110) to form a sealing structure. A bottom sealing strip (600) is provided on the bottom (230) of the underwater welding channel and is connected to the underwater welding channel lateral sealing structure (300) to form a vertical sealing structure, thereby forming a sealing structure in three directions.

2. The underwater welding channel lateral sealing structure according to claim 1, characterized in that, The underwater welding channel lateral sealing structure (300) is a flat box-shaped structure with length, width, and height L, a, and h, respectively. The design ranges of L, a, and h are 500mm~1000mm, 200mm~400mm, and 2m~10m, respectively. The underwater welding channel lateral sealing structure (300) also includes a lateral sealing structure web (310), a lateral sealing structure panel (320), a first pressure plate (330), a second pressure plate (340), a lateral pressure plate (350), a top clamping ear plate (380), an upper fixing part (390), and a lower fixing part (391). The first pressure plate (330) and the second pressure plate (340) press the longitudinal wall sealing strip (370) onto the lateral sealing structure panel (320), and the lateral pressure plate (350) fixes the lateral sealing strip (360) onto the lateral sealing structure panel (320). The upper fixing part (390) and the lower fixing part (391) are respectively provided at the upper and lower ends of the underwater welding channel lateral sealing structure (300). At least three of the top clamping ear plates (380) are provided between the upper fixing part (390) and the lower fixing part (391).

3. The underwater welding channel lateral sealing structure according to claim 2, characterized in that, The clamping lug (380) includes a lug (381), a bolt (382), and a connecting seat plate (383). The lug (381) and the connecting seat plate (383) are integrated. The bolt (382) is installed in the bolt hole of the connecting seat plate (383). The connecting seat plate (383) is welded and fixed to the longitudinal wall (210) of the underwater welding channel and the lateral sealing structure (300) of the underwater welding channel, respectively, and is connected to both ends of the spiral screw (700).

4. The underwater welding channel lateral sealing structure according to claim 2, characterized in that, The spiral screw (700) uses a 10-ton to 20-ton spiral shackle with a stroke of not less than 100mm. It has at least three vertical joints corresponding to the top clamping lug (380) with height spacing of h1, h2, and h3. One end of the spiral screw (700) is fixedly connected to the longitudinal wall (210) of the underwater welding channel, and the other end is fixedly connected to the lateral sealing structure (300) of the underwater welding channel. The position of the lateral sealing structure (300) of the underwater welding channel can be adjusted laterally by adjusting the spiral screw (700).

5. The underwater welding channel lateral sealing structure according to claim 1, characterized in that, The longitudinal wall sealing strip (370) is designed with a double-wave structure, with a width value b of 100-300 mm, a wave height of 100 mm, and a thickness of 10-30 mm; the lateral sealing strip (360) is rectangular in shape, with a length and width of 50-100 mm; and the main material of both the longitudinal wall sealing strip (370) and the lateral sealing strip (360) is sealing rubber with a tensile strength ≥150 kg / cm². 2 .

6. The underwater welding channel lateral sealing structure according to claim 1, characterized in that, The adjustment structure includes a top adjustment structure (400) and a bottom adjustment structure (500). Both the top adjustment structure (400) and the bottom adjustment structure (500) adopt screw adjustment structure. By adjusting the screws, the underwater welding channel side sealing structure (300) and the underwater welding channel longitudinal wall (210) are pressed together.

7. The underwater welding channel lateral sealing structure according to claim 6, characterized in that, The top adjustment structure (400) includes a top reinforcing plate (410), a top plate (420), a top side plate (430), and a top adjusting screw (440). The top reinforcing plate (410), the top plate (420), and the top side plate (430) are respectively welded to fix the longitudinal wall (210) of the underwater welding channel, and the gap between the longitudinal wall (210) of the underwater welding channel and the lateral sealing structure (300) of the underwater welding channel can be adjusted by the top adjusting screw (440).

8. The underwater welding channel lateral sealing structure according to claim 6, characterized in that, The bottom adjustment structure (500) includes a bottom reinforcing plate (510), a bottom plate (520), a bottom side plate (530), and a bottom adjusting screw (540). The bottom reinforcing plate (510), the bottom plate (520), and the bottom side plate (530) are welded to fix the longitudinal wall (210) of the underwater welding channel, and the gap between the longitudinal wall (210) of the underwater welding channel and the lateral sealing structure (300) of the underwater welding channel can be adjusted by the bottom adjusting screw (540). The bottom sealing strip (600) is also arranged on the bottom adjustment structure (500), and the length and width h4 of the bottom sealing strip (600) are 50-150mm respectively.

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