A basement water pressure gushing steel sleeve cofferdam plugging construction device

Abstract

The application provides a basement bearing water gushing steel sleeve cofferdam plugging construction device, and relates to the technical field of plugging construction devices, which comprises a base, the number of the base is four, and the top of the base is fixedly connected with a plurality of arc-shaped plates. The U-shaped rod is used for fixing the U-shaped plate and the fixed plate, so that the U-shaped plate can be fixed to the outer surface of the arc-shaped frame, thereby increasing the structural stability of the U-shaped plate. Meanwhile, the fixed plate is fixed by the U-shaped rod, the hydraulic rod can be fixed, the hydraulic rod can be fixed in the U-shaped plate, and the spring, the sliding rod and the push plate are fixed with each other, so that the hydraulic rod has a certain buffering effect when the hydraulic rod control clamping plate clamps and positions the steel sleeve. In the process of elongation of the hydraulic rod, the force of the elongated hydraulic rod does not directly act on the steel sleeve, and the steel sleeve falls into the construction site under the action of its own gravity through the action of the rotating ball.

Description

Technical Field

[0001] This invention relates to the field of sealing construction device technology, and in particular to a sealing construction device for a steel casing cofferdam of a basement pressurized water inrush. Background Technology

[0002] In existing construction processes, the steel casing cofferdam scheme for pressurized water inrush is generally used to solve the problem of groundwater pressure or inrush. The usual method is to use steel casings for sealing. Although existing steel casings can be controlled by cranes during construction, the height and size of cranes are not convenient for use in basement construction. As a result, the steel casings need to be manually controlled and buried in basement construction. Due to the shape and size of the steel casings, manual construction is quite troublesome and it is impossible to accurately control the steel casings as they enter the ground. Therefore, a construction device for sealing basement pressurized water inrush with steel casings is needed to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies. In current construction processes, the steel casing cofferdam scheme for pressurized water inrush is generally used to solve the problem of groundwater pressure or inrush. The usual method is to use steel casings for sealing. Although existing steel casings can be controlled by cranes during construction, the height and size of cranes are not convenient for use in basement construction. As a result, the steel casings need to be manually controlled and buried in basement construction. Due to the shape and size of the steel casings, manual construction is quite troublesome and it is impossible to accurately control the steel casings as they enter the ground.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement, comprising a base, wherein four bases are provided, and multiple arc-shaped plates are fixedly connected to the top of the bases. A clamping mechanism is fixedly installed between the tops of the multiple arc-shaped plates. A retraction mechanism is fixedly provided on the top of the bases, the retraction mechanism comprising two fixed pipes and a pipe plate. A sliding rod is slidably connected to the inner wall of the fixed pipes, and a sliding plate is slidably connected to the inner wall of the pipe plate. A support frame is fixedly connected to the top of the sliding plate, and two connecting plates are fixedly connected to the outer surface of the support frame. The bottom of the connecting plate is fixedly connected to the top of the sliding rod. Next, two linear motors are fixedly connected to the top of the support frame. A sliding hole is opened on the top of the support frame. A fixed shell is fixedly connected to the output end of one of the linear motors, and a weight block is fixedly connected to the top of the other linear motor. A base is fixedly connected to the inner wall of the fixed shell, and a drive motor is fixedly connected to the top of the base. A support shell is fixedly connected between the fixed shell and one side of the weight block. The inner wall of the sliding hole is slidably connected to the outer surface of the support shell. A rotating roller is rotatably connected to the inner wall of the support shell. A rope is provided on the outer surface of the rotating roller. A hook is fixedly connected to the bottom end of the rope. One end of the rotating roller is fixedly connected to the output end of the drive motor. The clamping mechanism includes two arc-shaped frames. The bottom of each arc-shaped frame is fixedly connected to the top of an arc-shaped plate. Multiple support rods are fixedly connected to one side of each arc-shaped frame, with the bottom ends of the support rods fixedly connected to the top of a base. Two U-shaped rods are fixedly connected to one side of each arc-shaped frame. A U-shaped plate is provided on the outer surface of each U-shaped rod, and a fixing plate is provided on the inner wall of the U-shaped plate. Two fixing holes are opened at the top of the fixing plate, and the inner walls of the fixing holes are fixedly connected to the outer surfaces of the U-shaped rods. A first connecting hole is opened at the top of the U-shaped plate, and the inner wall of the first connecting hole is fixedly connected to the outer surface of the U-shaped rod. A second connecting hole is opened on one side of the fixing plate, and a hydraulic rod is fixedly installed on the inner wall of the second connecting hole. One end of the hydraulic rod is fixedly connected to the inner wall of one side of the U-shaped plate. The hydraulic rod is fixedly connected to a push plate at its output end. A clamping plate is slidably connected to the inner wall of the U-shaped plate. A U-shaped frame is fixedly connected to the outer surface of the clamping plate. The outer surface of the U-shaped frame is slidably connected to the inner wall of the U-shaped plate. Two first sliding holes are opened on one side of the U-shaped frame. A sliding rod is slidably connected to the inner wall of the first sliding hole. One side of the push plate is fixedly connected to one end of the sliding rod. A fixing ring is fixedly fitted on the outer surface of the sliding rod. An arc-shaped pressure plate is fixedly connected between the other ends of the two sliding rods. Multiple rotating grooves are opened on one side of the clamping plate. A rotating ball is rotatably connected to the inner wall of the rotating groove. A baffle is fixedly connected to the top of the arc-shaped frame. A second sliding hole is opened on one side of the U-shaped frame. A limit block is slidably connected to the inner wall of the second sliding hole. One side of the limit block is fixedly connected to one side of the push plate.

[0005] In a preferred embodiment, a spring is provided on the outer surface of the slide rod, one end of the spring is fixedly connected to one side of the fixed ring, the other end of the spring is fixedly connected to one side of the U-shaped frame, an arc-shaped groove is provided on the other side of the clamping plate, the inner wall of the arc-shaped groove is slidably connected to the outer surface of the arc-shaped pressure plate, and a resistance groove adapted to the rotating ball is provided on one side of the arc-shaped pressure plate.

[0006] In a preferred embodiment, the four bases are divided into groups of two, and an arc-shaped connecting plate is fixedly connected between one side of each group of bases, wherein a support connecting plate is fixedly connected between one side of two of the bases.

[0007] In a preferred embodiment, the bottom end of the fixed tube is fixedly connected to the top of the base, and the bottom of the tube plate is fixedly connected to the top of the support plate.

[0008] In a preferred embodiment, a limiting groove is formed on the outer surface of the sliding rod, and multiple slots are formed on the inner wall of the limiting groove. A first groove is formed on the top of the fixing tube, and a limiting plate is fixedly connected to the inner wall of the first groove. A first threaded hole is formed on one side of the limiting plate, and a first bolt is threadedly connected to the inner wall of the first threaded hole. The outer surface of the first bolt is slidably connected to the inner wall of the slot, and the outer surface of the limiting plate is slidably connected to the inner wall of the limiting groove.

[0009] In a preferred embodiment, a second groove is provided on one side of the support frame, a side plate is fixedly connected to the inner wall of the second groove, a plurality of locking holes are provided on one side of the side plate, a second bolt is slidably connected to the inner wall of the locking holes, a second threaded hole is provided on one side of the tube plate, the inner wall of the second threaded hole is threadedly connected to the outer surface of the second bolt, and a locking hole adapted to the locking holes is provided on one side of the sliding plate, the inner wall of the locking hole is slidably connected to the outer surface of the second bolt.

[0010] In a preferred embodiment, the bottom of the support shell is provided with a support hole, and a plurality of mounting rods are fixedly connected to the inner wall of the support hole. A connecting ring is fixedly connected between one end of the plurality of mounting rods. A rotating ring is rotatably sleeved on the outer surface of the connecting ring. The plurality of rotating rings are located between the outer surfaces of two mounting rods. The inner wall of the connecting ring is slidably connected to the outer surface of the rope.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are as follows: 1. In this invention, the U-shaped plate and the fixing plate are fixed by a U-shaped rod, thereby fixing the U-shaped plate to the outer surface of the arc frame, increasing the structural stability of the U-shaped plate. Simultaneously, fixing the fixing plate by the U-shaped rod also fixes the hydraulic rod, allowing it to be fixed inside the U-shaped plate. Furthermore, the spring, sliding rod, and push plate are mutually fixed, providing a buffering effect when the hydraulic rod controls the clamping plate to hold and position the steel sleeve. During the extension of the hydraulic rod, the force generated by the extension is not directly applied to the steel sleeve. The rotating ball facilitates the steel sleeve's movement under its own weight. As the ball falls into the construction area, the hydraulic rod extends, causing the push plate to move. The push plate then moves the slide bar, which in turn moves the fixing ring. The fixing ring then moves the spring, which in turn moves the U-shaped frame. The U-shaped frame then moves the clamping plate, which in turn moves the rotating ball. After the rotating ball contacts the steel sleeve, the hydraulic rod continues to extend, causing the slide bar to move. The slide bar then moves the arc-shaped pressure plate, which contacts the rotating ball. At this point, the arc-shaped pressure plate increases the friction on the rotating ball, preventing it from rotating. Simultaneously, the push plate presses against the U-shaped frame, making the clamping plate exert a stronger force on the steel sleeve, thus increasing the stability of the steel sleeve.

[0012] 2. In this invention, the arc-shaped connecting plate and the supporting connecting plate enable a stable structure between the bases, allowing them to move. Simultaneously, the universal wheels at the bottom of the bases drive the bases to move. The first bolt and the slot allow the sliding rod to move and be fixed, thus adjusting the height of the sliding rod support. The limiting plate and the limiting groove ensure more stable sliding of the sliding rod. The side plate and the second bolt allow the sliding plate to be adjusted, working in conjunction with the fixed tube and the sliding rod to adjust the support frame. The weighting block further stabilizes the support frame, and the swivel ring allows for better rope sliding, reducing rope wear. Attached Figure Description

[0013] Figure 1 This invention provides a perspective view of a construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement; Figure 2 This invention provides a three-dimensional structural view of the launching and retracting mechanism of a steel sleeve cofferdam sealing construction device for pressurized water inrush in basements; Figure 3 This invention provides a perspective view of the clamping mechanism of a steel sleeve cofferdam sealing construction device for pressurized water inrush in basements; Figure 4 This invention provides an exploded three-dimensional view of the U-shaped plate of a steel sleeve cofferdam sealing construction device for pressurized water inrush in basements; Figure 5This invention provides a three-dimensional structural view of the side plate of a steel sleeve cofferdam sealing construction device for pressurized water inrush in basements; Figure 6 An exploded three-dimensional view of the fixed shell of a steel sleeve cofferdam sealing construction device for pressurized water inrush in a basement is provided for this invention. Figure 7 For the present invention Figure 6 Enlarged diagram of point A in the diagram.

[0014] Legend: 1. Base; 2. Clamping mechanism; 3. Retraction and unfolding mechanism; 4. Arc-shaped plate; 5. Support rod; 6. Arc-shaped connecting plate; 7. Support connecting plate; 21. Arc-shaped frame; 22. U-shaped rod; 23. U-shaped plate; 24. Fixing plate; 25. Fixing hole; 26. Hydraulic rod; 27. Clamping plate; 28. U-shaped frame; 29. ​​Push plate; 210. Slide rod; 211. Fixing ring; 212. Spring; 213. Rotating ball; 214. Limiting block; 215. Arc-shaped groove; 216. Arc-shaped pressure plate; 217. Baffle; 31. Fixed tube; 32. Sliding rod; 33. Limiting groove; 34. Limiting plate; 35. First bolt; 36. Slot; 37. Tube plate; 38. Sliding plate; 39. Support frame; 310. Side plate; 311. Slot; 312. Second bolt; 313. Connecting plate; 314. Sliding hole; 315. Linear motor; 316. Fixed shell; 317. Weighting block; 318. Base; 319. Drive motor; 320. Support shell; 321. Rotating roller; 322. Rope; 323. Support hole; 324. Mounting rod; 325. Connecting ring; 326. Rotating ring. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0016] Example 1

[0017] like Figure 1-7As shown, the present invention provides a technical solution: a construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement, comprising a base 1, wherein four bases 1 are provided, and multiple arc-shaped plates 4 are fixedly connected to the top of the base 1. A clamping mechanism 2 is fixedly installed between the tops of the multiple arc-shaped plates 4, and a retracting mechanism 3 is fixedly provided on the top of the base 1. The clamping mechanism 2 includes an arc-shaped frame 21, wherein two arc-shaped frames 21 are provided, and the bottom of the arc-shaped frame 21 is fixedly connected to the top of the arc-shaped plate 4. Multiple support rods 5 are fixedly connected to one side, and the bottom end of the support rods 5 is fixedly connected to the top of the base 1. Two U-shaped rods 22 are fixedly connected to one side of the arc-shaped frame 21. A U-shaped plate 23 is provided on the outer surface of the U-shaped rod 22, and a fixing plate 24 is provided on the inner wall of the U-shaped plate 23. Two fixing holes 25 are opened on the top of the fixing plate 24, and the inner wall of the fixing holes 25 is fixedly connected to the outer surface of the U-shaped rod 22. A first connecting hole is opened on the top of the U-shaped plate 23, and the inner wall of the first connecting hole is fixedly connected to the outer surface of the U-shaped rod 22. A fixed connection is provided. A second connecting hole is provided on one side of the fixed plate 24. A hydraulic rod 26 is fixedly installed on the inner wall of the second connecting hole. One end of the hydraulic rod 26 is fixedly connected to the inner wall of one side of the U-shaped plate 23. A push plate 29 is fixedly connected to the output end of the hydraulic rod 26. A clamping plate 27 is slidably connected to the inner wall of the U-shaped plate 23. A U-shaped frame 28 is fixedly connected to the outer surface of the clamping plate 27. The outer surface of the U-shaped frame 28 is slidably connected to the inner wall of the U-shaped plate 23. Two first sliding holes are provided on one side of the U-shaped frame 28. A sliding rod 210 is slidably connected to the inner wall, and a fixing ring 211 is fixedly sleeved on the outer surface of the sliding rod 210. An arc-shaped pressure plate 216 is fixedly connected between the other ends of the two sliding rods 210. Multiple rotating grooves are opened on one side of the clamping plate 27. A rotating ball 213 is rotatably connected to the inner wall of the rotating groove. A baffle 217 is fixedly connected to the top of the arc-shaped frame 21. A second sliding hole is opened on one side of the U-shaped frame 28. A limit block 214 is slidably connected to the inner wall of the second sliding hole. One side of the limit block 214 is fixedly connected to one side of the push plate 29. Furthermore, one side of the push plate 29 is fixedly connected to one end of the slide rod 210, and a spring 212 is provided on the outer surface of the slide rod 210. One end of the spring 212 is fixedly connected to one side of the fixing ring 211, and the other end of the spring 212 is fixedly connected to one side of the U-shaped frame 28. An arc-shaped groove 215 is provided on the other side of the clamping plate 27. The inner wall of the arc-shaped groove 215 is slidably connected to the outer surface of the arc-shaped pressure plate 216. A resistance groove adapted to the rotating ball 213 is provided on one side of the arc-shaped pressure plate 216. Through the above embodiments, the U-shaped plate 23 and the fixing plate 24 are fixed by the U-shaped rod 22, thereby fixing the U-shaped plate 23 to the outer surface of the arc frame 21, thus increasing the structural stability of the U-shaped plate 23. At the same time, the fixing plate 24 is fixed by the U-shaped rod 22, which can fix the hydraulic rod 26, so that the hydraulic rod 26 can be fixed inside the U-shaped plate 23. Furthermore, the spring 212, the slide rod 210, and the push plate 29 are fixed to each other, so that when the hydraulic rod 26 controls the clamping plate 27 to clamp and position the steel sleeve, it has a certain buffering effect. During the extension of the hydraulic rod 26, the force of the extension of the hydraulic rod 26 will not directly act on the steel sleeve. The action of the rotating ball 213 allows the steel sleeve to fall into the construction site under its own weight. At the same time, the extension of the hydraulic rod 26... The extended hydraulic rod 26 moves the push plate 29, which in turn moves the slide rod 210, which in turn moves the fixing ring 211, which in turn moves the spring 212, which in turn moves the U-shaped frame 28, which in turn moves the clamping plate 27, which in turn moves the rotating ball 213. After the rotating ball 213 contacts the steel sleeve, the extended hydraulic rod 26 moves the slide rod 210, which in turn moves the arc-shaped pressure plate 216, which in turn contacts the rotating ball 213. At this time, the arc-shaped pressure plate 216 increases the friction on the rotating ball 213, thereby preventing the rotating ball 213 from rotating. At the same time, the push plate 29 squeezes the U-shaped frame 28, making the clamping plate 27 exert stronger pressure on the steel sleeve, thereby increasing the stability of the steel sleeve. The four bases 1 are divided into two groups, and an arc-shaped connecting plate 6 is fixedly connected between one side of each group of bases 1. A support connecting plate 7 is fixedly connected between one side of two bases 1. Through the above embodiments, the arc-shaped connecting plate 6 and the supporting connecting plate 7 can form a stable structure between the bases 1, thereby enabling the bases 1 to move. At the same time, the universal wheels provided at the bottom of the bases 1 can drive the bases 1 to move. The take-up and take-down mechanism 3 includes two fixed tubes 31 and a tube plate 37. The bottom end of the fixed tube 31 is fixedly connected to the top of the base 1, and the bottom of the tube plate 37 is fixedly connected to the top of the support plate 7. A sliding rod 32 is slidably connected to the inner wall of the fixed tube 31. A limiting groove 33 is formed on the outer surface of the sliding rod 32. A plurality of slots 36 are formed on the inner wall of the limiting groove 33. A first groove is formed on the top of the fixed tube 31. A limiting plate 34 is fixedly connected to the inner wall of the first groove. A first threaded hole is formed on one side of the limiting plate 34. A first bolt 35 is threadedly connected to the inner wall of the first threaded hole. The outer surface of the first bolt 35 is slidably connected to the inner wall of the slot 36. The outer surface of the limiting plate 34 is slidably connected to the inner wall of the limiting groove 33. Through the above embodiments, the sliding rod 32 can be moved and fixed by the first bolt 35 and the slot 36, thereby adjusting the height of the sliding rod 32 for support. The limiting plate 34 and the limiting groove 33 make the sliding rod 32 slide more stably. A sliding plate 38 is slidably connected to the inner wall of the tube sheet 37. A support frame 39 is fixedly connected to the top of the sliding plate 38. A second groove is provided on one side of the support frame 39. A side plate 310 is fixedly connected to the inner wall of the second groove. A plurality of locking holes 311 are provided on one side of the side plate 310. A second bolt 312 is slidably connected to the inner wall of the locking hole 311. A second threaded hole is provided on one side of the tube sheet 37. The inner wall of the second threaded hole is threadedly connected to the outer surface of the second bolt 312. A locking hole that matches the locking hole 311 is provided on one side of the sliding plate 38. The inner wall of the locking hole is slidably connected to the outer surface of the second bolt 312. Through the above embodiments, the sliding plate 38 can be adjusted by the side plate 310 and the second bolt 312, which cooperate with the fixed tube 31 and the sliding rod 32, thereby enabling the adjustment of the support frame 39; Two connecting plates 313 are fixedly connected to the outer surface of the support frame 39. The bottom of the connecting plate 313 is fixedly connected to the top of the sliding rod 32. Two linear motors 315 are fixedly connected to the top of the support frame 39. A sliding hole 314 is provided on the top of the support frame 39. One linear motor 315 has its output end fixedly connected to a fixed housing 316, and the top of the other linear motor 315 has a fixed weight block 317. The inner wall of the fixed housing 316 has a fixed base 318, and the top of the base 318 has a fixed drive motor 319. A support housing 320 is fixedly connected between the fixed housing 316 and one side of the weight block 317. The inner wall of the sliding hole 314 is slidably connected to the outer surface of the support housing 320. Through the above embodiments, the support frame 39 can be made more stable by using the weighting block 317; A rotating roller 321 is rotatably connected to the inner wall of the support shell 320. A rope 322 is provided on the outer surface of the rotating roller 321. A hook is fixedly connected to the bottom end of the rope 322. One end of the rotating roller 321 is fixedly connected to the output end of the drive motor 319. The bottom of the support shell 320 is provided with a support hole 323. Multiple mounting rods 324 are fixedly connected to the inner wall of the support hole 323. A connecting ring 325 is fixedly connected between one end of the multiple mounting rods 324. A rotating ring 326 is rotatably sleeved on the outer surface of the connecting ring 325. Multiple rotating rings 326 are located between the outer surfaces of two mounting rods 324. The inner wall of the connecting ring 325 is slidably connected to the outer surface of the rope 322. Through the above embodiments, the swivel 326 can better facilitate the sliding of the rope 322, reducing the wear of the rope 322.

[0018] Working principle: like Figure 1-7 As shown, during use, the height of the support frame 39 is adjusted according to the height of the basement, and the sliding rod 32 and the sliding plate 38 are fixed by the first bolt 35 and the second bolt 312. Then, the linear motor 315 drives the fixed shell 316 and the weight block 317 to move. The movement of the fixed shell 316 and the weight block 317 drives the support shell 320 to move. The movement of the support shell 320 drives the hook to move. Then, the drive motor 319 is controlled to drive the hook downward, controlling the steel sleeve. Then, the steel sleeve moves upward. Under its own weight, the steel sleeve is perpendicular to the ground. Then, the linear motor 315 drives the support shell 320 back to its original position. Then, the hydraulic rod 26 extends and drives the push plate 29 to move. The movement of the push plate 29 drives the sliding rod 210 to move. The movement of the slide rod 210 causes the fixed ring 211 to move, which in turn causes the spring 212 to move. The movement of the spring 212 causes the U-shaped frame 28 to move, which in turn causes the clamping plate 27 to move. The movement of the clamping plate 27 causes the rotating ball 213 to move. After the rotating ball 213 contacts the steel sleeve, the extension of the hydraulic rod 26 causes the slide rod 210 to move. The movement of the slide rod 210 causes the arc-shaped pressure plate 216 to move. The arc-shaped pressure plate 216 contacts the rotating ball 213. At this time, the arc-shaped pressure plate 216 increases the friction force on the rotating ball 213, thereby preventing the rotating ball 213 from rotating. At the same time, the push plate 29 squeezes the U-shaped frame 28, making the clamping plate 27 exert a stronger force on the steel sleeve, thereby increasing the stability of the steel sleeve.

[0019] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications to the above embodiments made based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement, comprising a base (1), characterized in that: The number of bases (1) is four. Multiple arc-shaped plates (4) are fixedly connected to the top of each base (1). A clamping mechanism (2) is fixedly installed between the tops of the multiple arc-shaped plates (4). A retracting mechanism (3) is fixedly installed on the top of each base (1). The retracting mechanism (3) includes two fixed tubes (31) and a tube plate (37). A sliding rod (32) is slidably connected to the inner wall of the fixed tubes (31). A sliding plate (38) is slidably connected to the inner wall of the tube plate (37). A support frame (39) is fixedly connected to the top of the sliding plate (38). Two connecting plates (313) are fixedly connected to the outer surface of the support frame (39). The bottom of the connecting plate (313) is fixedly connected to the top of the sliding rod (32). Two linear motors (315) are fixedly connected to the top of the support frame (39). The top of the support frame (39) has an opening. A sliding hole (314) is provided, with a fixed housing (316) fixedly connected to the output end of one of the linear motors (315), and a weight block (317) fixedly connected to the top of the other linear motor (315). A base (318) is fixedly connected to the inner wall of the fixed housing (316), and a drive motor (319) is fixedly connected to the top of the base (318). A support housing (320) is fixedly connected between the fixed housing (316) and one side of the weight block (317). The inner wall of the sliding hole (314) is slidably connected to the outer surface of the support housing (320). A rotating roller (321) is rotatably connected to the inner wall of the support housing (320). A rope (322) is provided on the outer surface of the rotating roller (321). A hook is fixedly connected to the bottom end of the rope (322). One end of the rotating roller (321) is fixedly connected to the output end of the drive motor (319). The clamping mechanism (2) includes an arc-shaped frame (21), and there are two arc-shaped frames (21). The bottom of the arc-shaped frame (21) is fixedly connected to the top of the arc-shaped plate (4). A plurality of support rods (5) are fixedly connected to one side of the arc-shaped frame (21). The bottom end of the support rods (5) is fixedly connected to the top of the base (1). Two U-shaped rods (22) are fixedly connected to one side of the arc-shaped frame (21). A U-shaped plate (23) is provided on the outer surface of the U-shaped rods (22). A fixing plate (23) is provided on the inner wall of the U-shaped plate (23). The plate (24) has two fixing holes (25) on its top. The inner wall of the fixing hole (25) is fixedly connected to the outer surface of the U-shaped rod (22). The top of the U-shaped plate (23) has a first connecting hole, the inner wall of which is fixedly connected to the outer surface of the U-shaped rod (22). The side of the fixing plate (24) has a second connecting hole, and a hydraulic rod (26) is fixedly installed on the inner wall of the second connecting hole. One end of the hydraulic rod (26) is fixedly connected to the inner wall of one side of the U-shaped plate (23). A push plate (29) is fixedly connected to the output end of the hydraulic rod (26). A clamping plate (27) is slidably connected to the inner wall of the U-shaped plate (23). A U-shaped frame (28) is fixedly connected to the outer surface of the clamping plate (27). The outer surface of the U-shaped frame (28) is slidably connected to the inner wall of the U-shaped plate (23). Two first sliding holes are opened on one side of the U-shaped frame (28). A sliding rod (210) is slidably connected to the inner wall of the first sliding hole. One side of the push plate (29) is fixedly connected to one end of the sliding rod (210). A fixing ring (211) is fixedly fitted on the outer surface. An arc-shaped pressure plate (216) is fixedly connected between the other ends of the two slide rods (210). Multiple rotating grooves are opened on one side of the clamping plate (27). A rotating ball (213) is rotatably connected to the inner wall of the rotating groove. A baffle (217) is fixedly connected to the top of the arc-shaped frame (21). A second sliding hole is opened on one side of the U-shaped frame (28). A limit block (214) is slidably connected to the inner wall of the second sliding hole. One side of the limit block (214) is fixedly connected to one side of the push plate (29).

2. The construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement according to claim 1, characterized in that: A spring (212) is provided on the outer surface of the slide rod (210). One end of the spring (212) is fixedly connected to one side of the fixed ring (211), and the other end of the spring (212) is fixedly connected to one side of the U-shaped frame (28). An arc groove (215) is provided on the other side of the clamping plate (27). The inner wall of the arc groove (215) is slidably connected to the outer surface of the arc pressure plate (216). A resistance groove adapted to the rotating ball (213) is provided on one side of the arc pressure plate (216).

3. The construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement according to claim 1, characterized in that: The four bases (1) are divided into groups of two, and an arc-shaped connecting plate (6) is fixedly connected between one side of each group of bases (1), wherein a support connecting plate (7) is fixedly connected between one side of two bases (1).

4. The construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement according to claim 3, characterized in that: The bottom end of the fixed tube (31) is fixedly connected to the top of the base (1), and the bottom of the tube plate (37) is fixedly connected to the top of the support plate (7).

5. The construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement according to claim 4, characterized in that: The outer surface of the sliding rod (32) is provided with a limiting groove (33), and the inner wall of the limiting groove (33) is provided with a plurality of slots (36). The top of the fixed tube (31) is provided with a first groove, and the inner wall of the first groove is fixedly connected to a limiting plate (34). The side of the limiting plate (34) is provided with a first threaded hole, and the inner wall of the first threaded hole is threadedly connected to a first bolt (35). The outer surface of the first bolt (35) is slidably connected to the inner wall of the slot (36), and the outer surface of the limiting plate (34) is slidably connected to the inner wall of the limiting groove (33).

6. The construction device for sealing a steel casing cofferdam for pressurized water inrush in a basement according to claim 5, characterized in that: The support frame (39) has a second groove on one side, and a side plate (310) is fixedly connected to the inner wall of the second groove. The side plate (310) has a plurality of locking holes (311) on one side, and a second bolt (312) is slidably connected to the inner wall of the locking hole (311). The tube plate (37) has a second threaded hole on one side, and the inner wall of the second threaded hole is threadedly connected to the outer surface of the second bolt (312). The sliding plate (38) has a locking hole on one side that matches the locking hole (311), and the inner wall of the locking hole is slidably connected to the outer surface of the second bolt (312).

7. The construction device for sealing a cofferdam with a steel casing for blocking pressurized water inrush in a basement according to claim 1, characterized in that: The bottom of the support shell (320) is provided with a support hole (323). Multiple mounting rods (324) are fixedly connected to the inner wall of the support hole (323). A connecting ring (325) is fixedly connected between one end of the multiple mounting rods (324). A rotating ring (326) is rotatably sleeved on the outer surface of the connecting ring (325). The multiple rotating rings (326) are located between the outer surfaces of two mounting rods (324). The inner wall of the connecting ring (325) is slidably connected to the outer surface of the rope (322).

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