A dock flood gate water stop device and method of use thereof

Abstract

The application discloses a kind of dock floodgate water stop device and its use method, for being opened with track gap floodgate, water stop device includes by fastener fastening fixedly formed plugging structure water stop long plate and water stop short plate, the outer edge of plugging structure is greater than the outer edge of track gap, the lower end of plugging structure is equipped with the sealing groove of being matched with crane track cross section shape, sealing groove includes first slot and second slot, first slot and second slot are respectively located in the lower end inside surface of water stop long plate and water stop short plate.The application device is easy to assemble and disassemble, with wide applicability, by adjusting and clamping water stop long plate and water stop short plate on crane track, water stop long plate can be detachably fixed on floodgate, can effectively solve the leakage problem of floodgate track gap during flood season, significantly improve the sealing performance of floodgate, in addition, the fixed connection design of device and floodgate can effectively disperse water flow impact force, improve the safety of dock during flood season.

Description

Technical Field

[0001] This invention belongs to the field of hydraulic structure technology, and in particular relates to a water-stopping device for a dock flood control gate and its usage method. Background Technology

[0002] Shipyard docks are usually located near rivers or the sea. These locations are often flooded, so flood control walls need to be built near the river or the sea. Flood control walls have flood control gates, which are closed during the flood season to prevent flooding.

[0003] Shipyards need to use cranes in the dock to lift and unload goods transported by water. However, the crane tracks interfere with flood control gates. Therefore, flood control gates are manufactured with gaps in the tracks based on the actual location of the crane tracks on site to avoid interference when the flood control gates are closed. However, these gaps also prevent the flood control gates from completely closing, allowing river water or seawater to flow in during the flood season. This significantly reduces the effectiveness of the flood control gates. The usual solution is to use sandbags to block the gaps to maintain the gate's sealing function. This method can be somewhat effective, but the rapid flow of river water or seawater at the gaps makes the effect less than ideal.

[0004] A search revealed that Chinese invention application CN115419015A discloses a flood control gate sealing device for crane rails, comprising a flood control gate body, a first sealing element, and multiple fillers. The bottom of the flood control gate body has a sealing hole for the crane rail to pass through. The multiple fillers are respectively sealed in grooves on both sides of the crane rail. The first sealing element is located within the sealing hole and pressed between the flood control gate body, the multiple fillers, and the crane rail. However, the flood control function of this device still relies on the sealing effect of the individual fillers and the first sealing element. Because they are separate, the sealing density between the fillers and the crane rail and the flood control gate is affected, especially during flood season when the water flow is rapid and the impact force is high, causing misalignment and making it impossible to avoid water leakage from the flood control gate. This device has certain limitations. Summary of the Invention

[0005] To address the problems existing in the prior art, the present invention aims to provide a water-stopping device for a dock flood control gate. By combining a short water-stopping plate and a long water-stopping plate, the sealing performance of the flood control gate is ensured, effectively solving the leakage problem caused by interference between the flood control gate and the crane track, and greatly improving the safety of the dock during the flood season. Meanwhile, the present invention also aims to provide a method for using a water-stopping device for a dock flood control gate. This method innovates upon the relevant requirements for dock flood control by hoisting a short water-stopping plate and a long water-stopping plate into the gap of the flood control gate, clamping the long and short water-stopping plates onto the crane rail and tightly fixing them to the flood control gate. This ensures the sealing effect of the flood control gate, effectively solving the problem of water leakage and preventing serious seepage that could damage shipyard equipment, thereby avoiding economic losses and greatly improving the safety of the dock during the flood season. Furthermore, the water-stopping device has a simple structure, is easy to assemble and disassemble, and provides a fast and reliable water-stopping function for flood control gates without damaging the crane rail or the flood control gate, effectively saving labor and maintenance costs. Moreover, by fixing the water-stopping device to the flood control gate, the impact force of the water flow can be dispersed onto the flood control gate, thus providing a solid safety guarantee for the dock during the flood season.

[0006] To achieve the above and other related objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, the present invention provides a water-stopping device for a dock flood control gate, comprising a long water-stopping plate and a short water-stopping plate. The long water-stopping plate has a first lifting hole and a fixing hole, and the short water-stopping plate has a second lifting hole that matches the fixing hole. The flood control gate has an installation groove that matches the first lifting hole. The second lifting hole is fastened to the fixing hole by fasteners, so that the short water-stopping plate and the long water-stopping plate form a sealing structure. The outer edge of the sealing structure is larger than the outer edge of the track notch. A sealing groove is provided at the lower end of the sealing structure. The sealing groove is located between the lower inner surface of the long water-stopping plate and the lower inner surface of the short water-stopping plate. The sealing groove has a shape that matches the cross-sectional shape of the crane track. The sealing groove includes a first groove and a second groove, wherein the first groove is located at the lower inner surface of the long water-stopping plate, and the second groove is located at the lower inner surface of the short water-stopping plate, so that the long water-stopping plate and the short water-stopping plate can be clamped onto the crane track through the first groove and the second groove, respectively.

[0008] As a preferred technical solution, the positions of the fixing hole and the second hoisting hole fall within the track gap range of the flood control gate.

[0009] As a preferred technical solution, the short water-stop plate further includes a folded plate, which is located at the outer edge of the short water-stop plate, and the rear end face of the folded plate is flush with the rear end face of the long water-stop plate.

[0010] A second aspect of the present invention provides a method for using a dock floodgate water-stopping device, comprising the following steps:

[0011] S1. Hoist the short water-stop plate and the long water-stop plate to the area within the planned installation position of the flood control gate on the crane rail, and then vertically insert the short water-stop plate and the long water-stop plate into the crane rail in sequence.

[0012] S2. Lock and fix the long water-stop plate and the short water-stop plate to form a sealing structure, and adjust the position of the sealing structure until the rear end face of the sealing structure is close to the plane of the front end face of the flood control door to be installed.

[0013] S3. Hoist the flood control gate to the intended installation position and install the sealing structure onto the flood control gate to complete the installation of the water-stopping device.

[0014] As a preferred technical solution, the specific steps of step S1 include:

[0015] S1-1. Hoist the water-stop short plate to the area within the planned installation position of the flood control gate on the crane rail, and adjust the angle and position of the water-stop short plate so that the water-stop short plate is vertically embedded in the crane rail through the second slot;

[0016] S1-2. Hoist and adjust the angle and position of the waterstop long plate until the front end of the waterstop long plate is in contact with the rear end of the waterstop short plate, and make the waterstop long plate vertically embedded in the crane rail through the first slot.

[0017] Further, the specific steps of step S1-1 include: installing a shackle with a lifting rope on the second lifting hole, smoothly lifting the water-stop short plate and moving it along the length of the crane rail to the range of the intended installation position of the flood control gate; then, by adjusting the angle of the water-stop short plate, rotating the water-stop short plate to be perpendicular to the length of the crane rail; at the same time, adjusting the position of the water-stop short plate, so that the inner side of the lower end of the water-stop short plate is tightly attached to the outer side of the crane rail, so that the water-stop short plate is vertically embedded in the crane rail through the second slot; after adjusting the water-stop short plate into place, releasing the hook and releasing the shackle on the second lifting hole.

[0018] Further, the specific steps of steps S1-2 include: First, installing a shackle with a hanging rope on the first lifting hole, smoothly lifting the water-stop long plate and moving it along the length direction of the crane rail to near the rear end face of the water-stop short plate; then, by adjusting the angle orientation of the water-stop long plate, rotating the water-stop long plate to be perpendicular to the length direction of the crane rail; at the same time, adjusting the position of the water-stop long plate until the front end face of the water-stop long plate is in contact with the rear end face of the water-stop short plate, and the inner side of the lower end of the water-stop long plate is tightly in contact with the outer side of the crane rail, and the water-stop long plate is vertically embedded in the crane rail through the first slot.

[0019] As a preferred technical solution, step S2 specifically includes the following steps: After the long water-stop plate is adjusted into place, the fixing holes of the long water-stop plate and the second lifting hole of the short water-stop plate are locked and fixed with fasteners, so that the long water-stop plate and the short water-stop plate are assembled to form a sealing structure. The sealing structure is then moved horizontally and pulled using the shackles installed on the first lifting hole until the rear end face of the sealing structure is close to the plane of the front end face of the flood control door's intended installation position. After the sealing structure is adjusted into place, the hooks are released and the shackles on the second lifting hole are released.

[0020] As a preferred technical solution, the specific steps of step S3 include: hoisting the flood control gate to the pre-installation position of the flood control gate on the crane rail, attaching the front face of the flood control gate to the rear face of the sealing structure, attaching the rear face of the flood control gate to the front face of the ground, and fixing the water-stopping plate into the installation groove on the flood control gate through the second hoisting hole, thereby firmly fixing the sealing structure to the flood control gate and completing the installation of the water-stopping device.

[0021] As a further preferred technical solution, the method of use also includes step S0: before installing the water-stopping device, confirm that there are no debris on the crane track within the range of the intended installation position of the flood control gate, and if there is debris, clean it in advance.

[0022] As described above, the present invention has the following beneficial effects:

[0023] The present invention discloses a water-stopping device for a dock flood control gate and its usage method. By combining a short water-stopping plate and a long water-stopping plate, the sealing performance of the flood control gate is ensured, effectively solving the problem of water leakage at the gap in the flood control gate track during the flood season, and greatly improving the safety of the dock during the flood season. Meanwhile, the present invention also aims to provide a method for using a water-stopping device for a dock flood control gate. This method innovates upon the relevant requirements for dock flood control by suspending a short water-stopping plate and a long water-stopping plate into the gap in the flood control gate track, clamping the long and short water-stopping plates onto the crane track, and tightly fixing them to the flood control gate. This ensures the sealing effect of the flood control gate and effectively solves the leakage problem caused by interference between the flood control gate and the crane track, preventing serious water seepage that could damage shipyard equipment and thus avoiding economic losses. This greatly improves the safety of the dock during the flood season. Furthermore, the water-stopping device has a simple structure, is easy to operate and assemble, and is easy to disassemble. It provides a fast and reliable water-stopping function for flood control gates without damaging the crane track or the flood control gate, effectively saving labor and maintenance costs and having wide applicability. In addition, by fixing the water-stopping device to the flood control gate, the impact force of the water flow can be dispersed onto the flood control gate, thus providing a solid safety guarantee for the dock during the flood season. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the intended installation position of the flood control gate at the crane track in this invention.

[0025] Figure 2 This is a schematic diagram of the hoisting of the water-stopping short plate in this invention.

[0026] Figure 3 This is a schematic diagram of the hoisting of the water-stopping plate in this invention.

[0027] Figure 4 This is a schematic diagram of the installation of the sealing structure and the flood control door in this invention.

[0028] The specific annotations in the attached drawings are as follows: 1. Sealing structure; 11. Water-stopping long plate; 111. First lifting hole; 112. Fixing hole; 12. Water-stopping short plate; 121. Second lifting hole; 13. Sealing groove; 131. First groove opening; 132. Second groove opening; 3. Crane rail; 4. Fastener; 41. Fixing bolt; 42. Fixing nut; 5. Flood control gate; 51. Rail notch; 6. Lifting rope; 7. Ground; 8. Shackle. Detailed Implementation

[0029] To better understand the purpose, structure, and function of this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments.

[0030] In the description of this invention, it should be noted that the positional relationships indicated by terms such as "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" are based on the positional relationships shown in the accompanying drawings and are only for the purpose of facilitating the description of the embodiments of this invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific direction, and therefore should not be construed as a limitation of this invention.

[0031] Example 1

[0032] like Figure 4As shown, this embodiment provides a water-stopping device for a dock flood control gate, which is suitable for a flood control gate 5 with a track gap 51 for a crane track 3 to pass through, and includes a water-stopping long plate 11 and a water-stopping short plate 12. The water-stop long plate 11 has a first lifting hole 111 and a fixing hole 112. The flood control gate 5 has an installation groove (not shown in the figure). The position and specifications of the installation groove match the first lifting hole 111. The water-stop short plate 12 has a second lifting hole 121. The position and specifications of the second lifting hole 121 match the fixing hole 112. The water-stop short plate 12 and the water-stop long plate 11 are detachably connected through the second lifting hole 121 and the fixing hole 112, so that the water-stop short plate 12 and the water-stop long plate 11 are fastened and fixed by fasteners 4 to form a sealing structure 1. The outer edge of the sealing structure 1 is larger than the outer edge of the track notch 51. The lower end of the sealing structure 1 has a sealing groove 13. The sealing groove 13 is located on the lower inner side of the water-stop long plate 11 and the lower inner side of the water-stop short plate 12. The sealing groove 13 has a shape that matches the cross-sectional shape of the crane rail 3, so that the inner side of the lower end of the water-stop long plate 11 and the inner side of the lower end of the water-stop short plate 12 in the fixed state can respectively abut tightly against the crane rail 3 to ensure sealing. The sealing groove 13 includes a first groove 131 and a second groove 132. The first groove 131 is located on the inner side of the lower end of the water-stop long plate 11, and the second groove 132 is located on the inner side of the lower end of the water-stop short plate 12. This allows the water-stop long plate 11 and the water-stop short plate 12 to be clamped onto the crane rail 3 through the first groove 131 and the second groove 132, thereby ensuring the stability of the water-stop long plate 11 and the water-stop short plate 12 during installation. The first groove 131 and the second groove 132 can also be used to quickly position and install the device and to check the flatness of the fit between the device and the crane rail 3, thus improving the flood control sealing performance.

[0033] Preferably, the positions of the fixing hole 112 and the second lifting hole 121 fall within the range of the track gap 51 of the flood control gate 5, so that the fixing hole 112 and the second lifting hole 121 can be connected through, which increases the connection tightness and facilitates the disassembly and adjustment of the sealing structure 1 of the water-stopping device after the flood control gate 5 is installed, reducing labor costs and improving construction efficiency.

[0034] Example 2

[0035] This embodiment provides a method for using the dock flood control gate water-stopping device according to Embodiment 1, including the following steps:

[0036] S0, such as Figure 1 As shown, before installing the water-stopping device, confirm that there are no debris on the crane track 3 within the pre-installation position of the flood control gate 5. If there is debris, clean it in advance.

[0037] S1. Hoist the short water-stop plate 12 and the long water-stop plate 11 onto the crane rail 3 within the pre-installation position of the flood control gate 5, and then vertically insert the short water-stop plate 12 and the long water-stop plate 11 onto the crane rail 3 in sequence. Based on the flood and typhoon warning, when the flood season is predicted and the dock flood control gate 5 needs to be closed, prepare the crane in advance and retrieve the water-stop device from its storage location.

[0038] S1-1. Hoist the water-stopping short plate 12 onto the crane rail 3 within the pre-installation position range of the flood control gate 5, and adjust the angle and position of the water-stopping short plate 12 so that the water-stopping short plate 12 is vertically embedded into the crane rail 3 through the second slot 132.

[0039] like Figure 2 As shown, in this embodiment, firstly, a shackle 8 with a sling rope 6 is installed on the second lifting hole 121. The water-stop short plate 12 is then lifted smoothly by a crane and moved along the length of the crane track 3 to the range of the intended installation position of the flood control gate 5. Then, by adjusting the angle of the water-stop short plate 12, the water-stop short plate 12 is rotated to be perpendicular to the length of the crane track 3. At the same time, the position of the water-stop short plate 12 is adjusted, and the water-stop short plate 12 is moved to a position about 500mm away from the intended installation position of the flood control gate 5. The inner side of the lower end of the water-stop short plate 12 is then tightly attached to the outer side of the crane track 3. After the water-stop short plate 12 is adjusted into place, the crane releases the hook and releases the shackle 8 on the second lifting hole 121. At this time, the water-stop short plate 12 is vertically embedded in the crane track 3 through the second slot 132.

[0040] S1-2. Hoist and adjust the angle and position of the waterstop long plate 11 until the front end of the waterstop long plate 11 is in contact with the rear end of the waterstop short plate 12, and make the waterstop long plate 11 vertically embedded in the crane rail 3 through the first slot 131.

[0041] like Figure 3 As shown, in this embodiment, firstly, a shackle 8 with a sling rope 6 is installed on the first lifting hole 111. The water-stop long plate 11 is lifted smoothly by a crane and moved along the length direction of the crane rail 3 to the rear end face of the water-stop short plate 12. Then, by adjusting the angle of the water-stop long plate 11, the water-stop long plate 11 is rotated to be perpendicular to the length direction of the crane rail 3. At the same time, the position of the water-stop long plate 11 is adjusted so that the front end face of the water-stop long plate 11 is in contact with the rear end face of the water-stop short plate 12, and the inner side of the lower end of the water-stop long plate 11 is tightly in contact with the outer side of the crane rail 3. At this time, the water-stop long plate 11 is vertically embedded in the crane rail 3 through the first slot 131.

[0042] S2. Lock and fix the water-stop long plate 11 and water-stop short plate 12 to form the sealing structure 1, and adjust the position of the sealing structure 1 until the rear end face of the sealing structure 1 is close to the front end face of the flood control door 5 at the pre-installation position.

[0043] like Figure 4 As shown, after the water-stop long plate 11 is adjusted into place, the fixing hole 112 of the water-stop long plate 11 and the second lifting hole 121 of the water-stop short plate 12 are locked and fixed by the fastener 4, so that the water-stop long plate 11 and the water-stop short plate 12 are assembled to form the sealing structure 1. The sealing structure 1 is moved horizontally and pulled by the crane using the shackle 8 installed on the first lifting hole 111 until the rear end face of the sealing structure 1 is close to the plane of the front end face of the flood control gate 5 to be installed. After the sealing structure 1 is adjusted into place, the crane releases the hook and releases the shackle 8 on the second lifting hole 121. In this embodiment, the fastener 4 is a fixing bolt 41 and a fixing nut 42.

[0044] S3. Hoist the flood control gate 5 to the pre-installation position of the flood control gate 5, and assemble and install the sealing structure 1 on the flood control gate 5 to complete the installation of the water-stopping device.

[0045] like Figure 4 As shown, the flood control gate 5 is lifted by a crane to the pre-installation position on the crane track 3. At this time, the front end of the flood control gate 5 is successfully attached to the rear end of the sealing structure 1, and the rear end of the flood control gate 5 is attached to the front end of the ground 7. The water-stopping plate 11 is fixed in the installation groove on the flood control gate 5 by using the fastener 4 and the second lifting hole 121 on the water-stopping plate 11, thereby fastening the sealing structure 1 to the flood control gate 5 and completing the installation of the water-stopping device. In this embodiment, the second lifting hole 121 and the installation groove are locked together by fastening bolts, and a gasket is provided between the second installation hole and the fastening bolt to further increase the stability of the installation.

[0046] In this embodiment, the sealing structure 1 cleverly utilizes the fit between the long water-stop plate 11 and the short water-stop plate 12 to form a tight sealing system. However, due to the front-to-back positional relationship between the long water-stop plate 11 and the short water-stop plate 12, such as... Figure 4 As shown, there is a side gap between the short water-stop plate 12 and the track gap 51 of the flood control gate 5. The width of the side gap is the same as the thickness of the long water-stop plate 11. Although theoretically the side gap provides a potential seepage path for water flow, in actual work, by reducing the thickness of the long water-stop plate 11 and increasing the length of the short water-stop plate 12 located on one side of the side gap, combined with the special position and design of the side gap on the side, the sealing structure 1 as a whole can still have high impermeability under the impact of floodwater flow and play a good water-stopping role.

[0047] In another embodiment, to further achieve complete sealing, when there is a side gap between the water-stopping device and the track gap 51 of the flood control gate 5, the side gap is sealed with a sealing material such as sandbags to complete the sealing of the track gap 51 of the flood control gate 5. The sealing of the sealing material can form a more tight waterproof barrier, which can not only fill any tiny gaps, but also provide additional physical pressure to enhance the sealing effect between the water-stopping device and the flood control gate 5. At the same time, the combination of the natural water-stopping characteristics of the side gap and the physical sealing of the sandbags ensures that the flood control gate 5 can effectively prevent water infiltration and backflow when facing the challenge of flood season water flow. In other embodiments, the short water-stop plate 12 is further provided with a folded plate, which is located at the outer edge of the short water-stop plate 12, and the rear end face of the folded plate is flush with the rear end face of the long water-stop plate 11. That is, the folded plate extends backward to fit against the front end face of the flood control gate 5. Preferably, the folded plate is perpendicular to the front end face of the flood control gate 5, so that the sealing structure 1 can achieve a complete seal when installed on the flood control gate 5, eliminating the side gaps and ensuring the stability of the structure. This completes the sealing of the track gap 51 of the flood control gate 5. By improving the structure of the short water-stop plate 12, the operation step of sealing the side gaps with sandbags or other sealing materials is omitted, further improving the convenience of installation and use, enabling a faster response to flood warnings, and improving stability and flood control safety due to the integral nature of the sealing structure 1.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Those skilled in the art can make various changes or equivalent substitutions to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of this invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are protected by this invention.

Claims

1. A method of using a dock flood gate water stop device, comprising: The utility model discloses a dock floodgate water stop device for the floodgate (5) with track gap (51), the device includes water stop long board (11) and water stop short board (12), the first hoisting hole (111) and fixed hole (112) are set up on water stop long board (11), the second hoisting hole (121) is set up on water stop short board (12) with fixed hole (112) is matched, the installation slot is set up on floodgate (5) with first hoisting hole (111) is matched, and second hoisting hole (121) is fastened and fixed with fixed hole (112) through fastener (4), and water stop short board (12) and water stop long board (11) form the plugging structure (1), the outer edge of plugging structure (1) is greater than the outer edge of track gap (51), and the lower end of plugging structure (1) is set up with sealing groove (13), sealing groove (13) is located between the lower end inner side of water stop long board (11) and the lower end inner side of water stop short board (12), sealing groove (13) has the shape with the cross section shape of crane track (3) is matched, sealing groove (13) includes first slot (131) and second slot (132), wherein first slot (131) is located in the lower end inner side of water stop long board (11), and second slot (132) is located in the lower end inner side of water stop short board (12), so that water stop long board (11) and water stop short board (12) can be respectively clamped on crane track (3) through first slot (131) and second slot (132). The method comprises the following steps: S1, hoist water stop short board (12) and water stop long board (11) to the floodgate (5) pre-installation position range on the crane track (3) respectively, and vertically embed water stop short board (12) and water stop long board (11) on the crane track (3) in sequence; S2, lock and fix water stop long board (11) and water stop short board (12) to form the plugging structure (1), and adjust the position of plugging structure (1), until the rear end surface of plugging structure (1) abuts against the plane where the front end surface of the floodgate (5) pre-installation position is located; S3, hoist the floodgate (5) to the floodgate (5) pre-installation position, and install the plugging structure (1) on the floodgate (5), complete the installation of the water stop device.

2. The method of using a dock flood gate water stop assembly of claim 1, wherein, The position of fixed hole (112) and second hoisting hole (121) falls in the track gap (51) range of floodgate (5).

3. The method of using a dock flood gate water stop assembly of claim 1, wherein, The water stop short board (12) further comprises a folding plate, the folding plate is located at the outer edge of the water stop short board (12), and the rear end surface of the folding plate is flush with the rear end surface of the water stop long board (11).

4. The method of using a dock flood gate water stop assembly of claim 1, wherein, The specific steps of step S1 include: S1-1, hoist water stop short board (12) to the floodgate (5) pre-installation position range on the crane track (3), adjust the angle direction and position of water stop short board (12), so that water stop short board (12) is vertically embedded on the crane track (3) through second slot (132). S1-2, hoist and adjust the angle orientation and position of the water stop long plate (11) until the front end surface of the water stop long plate (11) is attached to the rear end surface of the water stop short plate (12), and the water stop long plate (11) is vertically clamped on the crane rail (3) through the first slot (131).

5. The method of using a dock flood gate water stop assembly of claim 4, wherein, The specific steps of the step S1-1 include: installing the shackle (8) with the lifting rope (6) hung on the second hoisting hole (121), stably hoisting the water stop short plate (12) and moving it along the length direction of the crane rail (3) to the pre-installation position range of the flood prevention door (5); then, by adjusting the angle orientation of the water stop short plate (12), the water stop short plate (12) is rotated to be perpendicular to the length direction of the crane rail (3); at the same time, the position of the water stop short plate (12) is adjusted, and the inner side surface of the lower end of the water stop short plate (12) is tightly attached to the outer side surface of the crane rail (3), so that the water stop short plate (12) is vertically clamped on the crane rail (3) through the second slot (132); after the water stop short plate (12) is adjusted in place, the shackle (8) on the second hoisting hole (121) is loosened.

6. The method of using a dock flood gate water stop assembly of claim 4, wherein, The specific steps of the step S1-2 include: first, installing the shackle (8) with the lifting rope (6) hung on the first hoisting hole (111), stably hoisting the water stop long plate (11) and moving it along the length direction of the crane rail (3) to the rear end surface of the water stop short plate (12); then, by adjusting the angle orientation of the water stop long plate (11), the water stop long plate (11) is rotated to be perpendicular to the length direction of the crane rail (3); at the same time, the position of the water stop long plate (11) is adjusted until the front end surface of the water stop long plate (11) is attached to the rear end surface of the water stop short plate (12), and the inner side surface of the lower end of the water stop long plate (11) is tightly attached to the outer side surface of the crane rail (3), and the water stop long plate (11) is vertically clamped on the crane rail (3) through the first slot (131).

7. The method of using a dock flood gate water stop assembly of claim 1, wherein, The specific steps of the step S2 include: after the water stop long plate (11) is adjusted in place, the fixing hole (112) of the water stop long plate (11) and the second hoisting hole (121) of the water stop short plate (12) are locked and fixed by the fastener (4), so that the water stop long plate (11) and the water stop short plate (12) are assembled to form a plugging structure (1), the plugging structure (1) is pulled by translation using the shackle (8) installed on the first hoisting hole (111) until the rear end surface of the plugging structure (1) is tightly attached to the plane where the front end surface of the pre-installation position of the flood prevention door (5) is located, and then the shackle (8) on the second hoisting hole (121) is loosened after the plugging structure (1) is adjusted in place.

8. The method of using a dock flood gate water stop assembly of claim 1, wherein, The specific steps of the step S3 include: hoisting the flood prevention door (5) to the pre-installation position of the flood prevention door (5) on the crane rail (3), the front end surface of the flood prevention door (5) is attached to the rear end surface of the plugging structure (1), and the rear end surface of the flood prevention door (5) is attached to the front end surface of the ground (7), the water stop long plate (11) is fixed in the mounting slot on the flood prevention door (5) through the second hoisting hole (121), so that the plugging structure (1) is tightly fixed on the flood prevention door (5), and the installation of the water stop device is completed.

9. The method of using a dock flood gate water stop assembly of claim 1, wherein, Also included is the step S0: confirming that there is no sundries on the crane rail (3) within the range of the preliminary installation position of the floodgate (5) before installing the water stop device, and cleaning the sundries in advance if there is any.

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