Water stop mechanism for a working well

Abstract

The utility model discloses a kind of water stop mechanisms for working well drainage pipes, it is related to water stop mechanism technical field, including water stop tank and the connecting cavity being opened in the side wall of water stop tank, connecting cavity is inserted with drainage pipe in the cavity, the surface of the pipe body end portion of drainage pipe is opened with annular groove, the two sides of connecting cavity are evenly provided with the limiting cavity being opened in the inside of water stop tank, the cavity inner wall of connecting cavity is opened with two arc cavities being communicated with the limiting cavity cavity, the two sides cavity of connecting cavity are evenly provided with the arc limiting block being matched with arc cavity, the outer wall of arc limiting block is connected with limiting assembly.The utility model opens annular groove on the surface of drainage pipe, opens connecting cavity in water stop tank for drainage pipe insertion, under the action of limiting assembly, water stop tank and drainage pipe can be installed together quickly, when the two are needed to be disassembled, it can be pulled again the cross bar of two sides, it is very convenient, avoid the fixing mode of bolt, save time and effort.

Description

Technical Field

[0001] This utility model relates to the technical field of water-stopping mechanisms, specifically a water-stopping mechanism for drainage pipes in working wells. Background Technology

[0002] In offshore wind power projects, working wells are typically built on the seabed or offshore platforms. They primarily provide operating space and access for the installation, maintenance, and repair of offshore wind power equipment. During use, working wells may accumulate water due to seawater infiltration, equipment washing, and rainwater. Drainage pipes serve as channels to drain this water to designated locations. Water-stopping mechanisms are installed on the drainage pipes. Their main function is to prevent water flow when needed, preventing seawater backflow into the working well, or to maintain a dry environment inside the working well when drainage is not required. By installing water-stopping mechanisms on the drainage pipes, environmental conditions such as water level and humidity within the working well can be effectively controlled. This protects electrical equipment and cable joints inside the working well from water corrosion and impact, thereby ensuring the stable and safe operation of the offshore wind power system, reducing equipment failures and maintenance costs caused by flooding, and extending equipment lifespan.

[0003] Chinese patent CN221838337U discloses a pre-embedded water-stopping device for pipe jacking construction in a working shaft. It includes a reserved pipe opening in the shaft wall, a steel plate water-stop ring pre-embedded at the edge of the reserved pipe opening, bolt holes and grouting holes pre-drilled on the steel plate water-stop ring, a grouting pipe and a hooked reinforcing bar welded to the steel plate water-stop ring, and grouting holes at the connection point between the grouting pipe and the steel plate water-stop ring. A steel pressure plate, a rubber water-stop ring, and the steel plate water-stop ring are connected and fixed with fixing bolts to form a complete water-stopping effect. To improve the water-stopping effect and the stability of the surrounding soil during pipe construction, grout can be injected into the soil outside the shaft through the grouting pipe for reinforcement or water-stopping. This caisson opening water-stopping device can effectively avoid the hidden dangers of large amounts of quicksand entering the caisson due to irregular reserved pipe openings, inadequate water-stopping measures, or failure to reinforce the soil outside the opening, greatly improving the first-time pass rate of pipe jacking construction.

[0004] However, the water-stopping mechanism disclosed in the above patent still has certain inconveniences in actual use. Because the water-stopping mechanism is fixed by bolts, it is time-consuming and laborious to install and disassemble in this way, making it inconvenient to install and disassemble quickly. In addition, because the working well is prone to dampness, the bolts are prone to rust after long-term use, which affects the fixing effect. Utility Model Content

[0005] The purpose of this utility model is to provide a water-stopping mechanism for drainage pipes in working wells, so as to solve the problem mentioned in the background art that the existing water-stopping devices are fixed with bolts, which is time-consuming and laborious to install and disassemble, and is not convenient for quick installation and disassembly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a water-stopping mechanism for a working well drainage pipe, comprising a water-stopping box and a connecting cavity formed on one side wall of the water-stopping box. A drainage pipe is inserted into the cavity of the connecting cavity. An annular groove is formed on the end surface of the drainage pipe. Limiting cavities formed inside the water-stopping box are provided on both sides of the connecting cavity. Two arc-shaped cavities communicating with the limiting cavities are formed on the inner wall of the connecting cavity. Arc-shaped limiting blocks adapted to the arc-shaped cavities are provided in both sides of the connecting cavity. Limiting components are connected to the outer walls of the arc-shaped limiting blocks. A water-stopping cavity is formed inside the water-stopping box. A second through hole communicates between the water-stopping cavity and the connecting cavity. A first through hole communicating with the water-stopping cavity is formed on one side wall of the water-stopping box. A water-stopping component is provided inside the water-stopping box.

[0007] Preferably, the limiting component includes a horizontal plate fixedly installed between the two side walls of the limiting cavity, a limiting post being movably installed through the middle part of the horizontal plate, and one end of the limiting post being movably installed through the groove of the arc-shaped cavity and fixedly connected to the outer wall of the arc-shaped limiting block.

[0008] Preferably, the other end of the limiting post movably penetrates the cavity wall of the limiting cavity and extends to the outside of the waterstop box. The arc-shaped limiting block and the annular groove are mutually adapted. A spring is provided in the cavity of the limiting cavity and sleeved on the surface of the limiting post. A movable plate is fixedly sleeved on the surface of the limiting post in the cavity of the limiting cavity. The spring is located on the side of the movable plate away from the arc-shaped limiting block. A crossbar is fixedly installed on the end of the limiting post away from the arc-shaped limiting block.

[0009] Preferably, the water-stopping component includes a sealing block disposed in the water-stopping cavity, the inside of the water-stopping box has a cavity located at the top of the water-stopping cavity, a threaded rod is rotatably connected between the two side walls of the cavity, a protective box is fixedly installed on the top wall of the water-stopping box, a motor is fixedly installed in the inner cavity of the protective box, and the output end of the motor is connected to the top end of the threaded rod.

[0010] Preferably, the water-stopping assembly further includes guide rods fixedly installed in the inner cavities on both sides of the cavity, and a movable plate is screwed onto the surface of the threaded rod, with the two ends of the movable plate slidably connected to the surface of the guide rod on both sides.

[0011] Preferably, lifting rods are fixedly installed on both sides of the bottom wall of the movable plate. The bottom end of the lifting rod movably passes through the bottom wall of the cavity and extends into the cavity of the water-stopping cavity. The bottom end of the lifting rod is fixedly connected to the top wall of the sealing block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes an annular groove on the surface of the drain pipe and a connecting cavity in the waterstop box for drain pipe insertion. Interconnected arc-shaped cavities and limiting cavities are formed on both sides of the connecting cavity. When installing the waterstop box, the horizontal bars on both sides are pulled outwards, causing the limiting post to move the arc-shaped limiting blocks on both sides of the connecting cavity into the arc-shaped cavity. During this process, the movable plate compresses the spring. After the arc-shaped limiting blocks exit the connecting cavity, the connecting cavity can be aligned with the drain pipe, and the end of the drain pipe can be inserted into the connecting cavity. After insertion, the horizontal bar can be released, and the spring causes the movable plate to move the limiting post back to its original position, allowing the arc-shaped limiting blocks to insert into the annular groove. This allows for quick installation of the waterstop box and drain pipe. Disassembly is achieved by simply pulling the horizontal bars on both sides again, which is very convenient and avoids the use of bolts, saving time and effort.

[0014] This invention achieves a water-stopping effect by opening a connected water-stopping cavity, a first through hole, and a second through hole in a water-stopping box, and by setting a sealing block in the water-stopping cavity. Under the action of a motor, the sealing block drives the threaded rod to rotate, and under the action of a guide rod, the moving plate descends along the threaded rod. Then, the sealing block descends via a lifting rod, thereby sealing the first through hole and the second through hole, thus preventing seawater from flowing back into the working well. Attached Figure Description

[0015] Figure 1 This is a first-view cross-sectional structural schematic diagram of a water-stopping mechanism for a working well drainage pipe according to the present invention.

[0016] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 This is a second-view cross-sectional structural schematic diagram of a water-stopping mechanism for a working well drainage pipe according to the present invention.

[0018] Figure 4 This is a schematic diagram of the drainage pipe structure of a water-stopping mechanism for a working well drainage pipe according to the present invention.

[0019] In the diagram: 1. Waterstop box; 2. Protective box; 3. Motor; 4. Connecting cavity; 5. Crossbar; 6. Limiting cavity; 7. Horizontal plate; 8. Movable plate; 9. Spring; 10. Limiting post; 11. Arc-shaped cavity; 12. Arc-shaped limiting block; 13. Drain pipe; 14. Waterstop cavity; 15. First through hole; 16. Second through hole; 17. Cavity; 18. Threaded rod; 19. Moving plate; 20. Guide rod; 21. Sealing block; 22. Lifting rod; 23. Annular groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 This utility model provides a technical solution: a water-stopping mechanism for a working well drainage pipe, including a water-stopping box 1 and a connecting cavity 4 opened on the right side wall of the water-stopping box 1. A drainage pipe 13 is inserted into the cavity of the connecting cavity 4. An annular groove 23 is opened on the left end surface of the drainage pipe 13. Limiting cavities 6 are provided on both the upper and lower sides of the connecting cavity 4 and are opened inside the water-stopping box 1. Two arc-shaped cavities 11 are opened on the inner wall of the connecting cavity 4 and are connected to the limiting cavities 6 on both sides. Arc-shaped limiting blocks 12 adapted to the arc-shaped cavities 11 are provided in both the upper and lower cavities of the connecting cavity 4, so that the arc-shaped limiting blocks 12 can enter the arc-shaped cavities 11. The outer wall of the arc-shaped limiting block 12 is connected to a limiting component. The inside of the water-stop box 1 is provided with a water-stop cavity 14. A second through hole 16 is connected between the water-stop cavity 14 and the connecting cavity 4. The left side wall of the water-stop box 1 is provided with a first through hole 15 connected to the water-stop cavity 14. A water-stop component is provided inside the water-stop box 1.

[0022] The limiting assembly includes a horizontal plate 7 welded between the front and rear side walls of the limiting cavity 6. A limiting post 10 is movably installed through the middle of the horizontal plate 7. The inner end of the limiting post 10 movably passes through the groove of the arc-shaped cavity 11 and is fixedly connected to the outer wall of the arc-shaped limiting block 12. The end near the center of the connecting cavity 4 is the inner end. The other end of the limiting post 10 movably passes through the cavity wall of the limiting cavity 6 and extends to the outside of the water-stop box 1. The arc-shaped limiting block 12 and the annular groove 23 are mutually adapted to each other so that the arc-shaped limiting block 12 can be inserted into the annular groove 23, thereby limiting and fixing the drain pipe 13. A spring 9 is fitted onto the surface of the limiting post 10 within the cavity of the limiting cavity 6. A movable plate 8 is welded to the surface of the limiting post 10 within the cavity of the limiting cavity 6. The spring 9 is located on the side of the movable plate 8 away from the arc-shaped limiting block 12, so that when the arc-shaped limiting block 12 moves outward, the movable plate 8 will compress the spring 9. A crossbar 5 is welded to the end of the limiting post 10 away from the arc-shaped limiting block 12. The purpose of the crossbar 5 is to facilitate the movement of the limiting post 10. The water-stopping assembly includes a sealing block 21 disposed within the water-stopping cavity 14. A cavity 17 is formed inside the water-stopping box 1 at the top of the water-stopping cavity 14. A threaded rod 18 is rotatably connected between the upper and lower side walls of the cavity 17 via bearings. A protective box 2 is welded to the top wall of the water-stopping box 1. A motor 3 is fixedly installed in the inner cavity of the protective box 2 via screws. The output end of the motor 3 is connected to the top end of the threaded rod 18 via a coupling, allowing the motor 3 to drive the threaded rod 18 to rotate. The water-stopping assembly also includes guide rods 20 welded to the inner cavities on the left and right sides of the cavity 17. The upper and lower ends of the guide rods 20 are respectively welded to the upper and lower side walls of the cavity 17. A movable plate 19 is screwed onto the surface of the threaded rod 18. The left and right ends of the movable plate 19 are slidably connected to the surfaces of the guide rods 20 on the left and right sides, respectively. Lifting rods 22 are welded to the bottom walls on both sides of the movable plate 19. The bottom end of the lifting rod 22 moves through the bottom wall of the cavity 17 and extends into the cavity of the water-stopping cavity 14. The bottom end of the lifting rod 22 is welded to the top wall of the sealing block 21.

[0023] By creating an annular groove 23 on the surface of the drain pipe 13 and a connecting cavity 4 in the waterstop box 1 for inserting the drain pipe 13, and by creating interconnected arc-shaped cavities 11 and limiting cavities 6 on both sides of the connecting cavity 4, when the waterstop box 1 needs to be installed, the crossbars 5 on both sides can be pulled outwards first, causing the limiting post 10 to move the arc-shaped limiting blocks 12 on both sides of the connecting cavity 4 into the arc-shaped limiting cavity 11. During this process, the movable plate 8 will compress the spring 9, and when the arc-shaped limiting block 12 retracts from the connecting cavity 4... After that, the connecting cavity 4 can be aligned with the drain pipe 13, and the end of the drain pipe 13 can be inserted into the connecting cavity 4. After insertion, the cross bar 5 can be released. Under the action of the spring 9, the movable plate 8 drives the limiting post 10 to return to its original position, and then the arc-shaped limiting block 12 is inserted into the annular groove 23. Thus, the water-stop box 1 and the drain pipe 13 can be quickly installed together. When it is necessary to disassemble the two, the cross bars 5 on both sides can be pulled again. It is very convenient and avoids the use of bolts for fixing, saving time and effort. By opening a connected water-stopping cavity 14, a first through hole 15, and a second through hole 16 in the water-stopping box 1, and by setting a sealing block 21 in the water-stopping cavity 14, the motor 3 drives the threaded rod 18 to rotate. Under the limiting and guiding action of the guide rod 20, the moving plate 19 descends along the threaded rod 18, and then the lifting rod 22 drives the sealing block 21 to descend, so that the sealing block 21 seals the first through hole 15 and the second through hole 16, thereby achieving the water-stopping effect and preventing seawater from flowing back into the working well through the drain pipe 13.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-stopping mechanism for a working well drainage pipe, comprising a water-stopping box (1) and a connecting cavity (4) formed on one side wall of the water-stopping box (1), wherein a drainage pipe (13) is inserted into the cavity of the connecting cavity (4), characterized in that: The drain pipe (13) has an annular groove (23) on the end surface of the pipe body. Both sides of the connecting cavity (4) are provided with limiting cavities (6) inside the water-stop box (1). The inner wall of the connecting cavity (4) has two arc-shaped cavities (11) that communicate with the limiting cavity (6). Both sides of the connecting cavity (4) are provided with arc-shaped limiting blocks (12) that are adapted to the arc-shaped cavities (11). The outer wall of the arc-shaped limiting blocks (12) is connected with limiting components. The water-stop box (1) has a water-stop cavity (14) inside. The water-stop cavity (14) and the connecting cavity (4) are connected by a second through hole (16). One side wall of the water-stop box (1) has a first through hole (15) that communicates with the water-stop cavity (14). The water-stop box (1) has a water-stop component inside.

2. The water-stopping mechanism for the drainage pipe of the working well according to claim 1, characterized in that: The limiting component includes a horizontal plate (7) fixedly installed between the two side walls of the limiting cavity (6). A limiting post (10) is movably installed through the middle plate of the horizontal plate (7). One end of the limiting post (10) movably passes through the groove of the arc-shaped cavity (11) and is fixedly connected to the outer wall of the arc-shaped limiting block (12).

3. The water-stopping mechanism for the drainage pipe of the working well according to claim 2, characterized in that: The other end of the limiting post (10) extends through the cavity wall of the limiting cavity (6) and to the outside of the water-stop box (1). The arc-shaped limiting block (12) and the annular groove (23) are adapted to each other. A spring (9) is provided in the cavity of the limiting cavity (6) and sleeved on the surface of the limiting post (10). A movable plate (8) is fixedly sleeved on the surface of the limiting post (10) in the cavity of the limiting cavity (6). The spring (9) is located on the side of the movable plate (8) away from the arc-shaped limiting block (12). A crossbar (5) is fixedly installed on the end of the limiting post (10) away from the arc-shaped limiting block (12).

4. The water-stopping mechanism for the drainage pipe of the working well according to claim 1, characterized in that: The water-stopping assembly includes a sealing block (21) disposed in the water-stopping cavity (14). The water-stopping box (1) has a cavity (17) located at the top of the water-stopping cavity (14). A threaded rod (18) is rotatably connected between the two side walls of the cavity (17). A protective box (2) is fixedly installed on the top wall of the water-stopping box (1). A motor (3) is fixedly installed in the inner cavity of the protective box (2). The output end of the motor (3) is connected to the top end of the threaded rod (18).

5. The water-stopping mechanism for the drainage pipe of the working well according to claim 4, characterized in that: The water-stopping assembly also includes guide rods (20) fixedly installed in the inner cavities on both sides of the cavity (17). The surface of the threaded rod (18) is screwed with a movable plate (19), and the two ends of the movable plate (19) are slidably connected to the surface of the guide rod (20) on both sides.

6. The water-stopping mechanism for the drainage pipe of the working well according to claim 5, characterized in that: Lifting rods (22) are fixedly installed on both sides of the bottom wall of the movable plate (19). The bottom end of the lifting rod (22) moves through the bottom wall of the cavity (17) and extends into the cavity of the water-stopping cavity (14). The bottom end of the lifting rod (22) is fixedly connected to the top wall of the sealing block (21).

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