Self-locking anti-theft sealing device for underwater building

Abstract

The invention relates to the technical field of underwater building protection, in particular to a self-locking anti-theft sealing device for an underwater building, which comprises a building body, a cover plate, a locking mechanism, a self-locking driving mechanism and a sealing mechanism, one side of the building body is in an opening shape, and first angle bead angle steel is fixedly arranged at the opening of the building body; the cover plate covers the opening of the building body, and second angle bead angle steel is fixedly arranged on the cover plate; the locking mechanism is located on the cover plate and used for driving the cover plate and the building body to be locked. The self-locking driving mechanism is located on the cover plate and used for driving the locking mechanism to work. The sealing mechanism is located between the cover plate and the building body and used for sealing the space between the building body and the cover plate. The manhole sealing device has the sealing and anti-theft effects on the manhole of the underwater building.

Description

Technical Field

[0001] This application relates to the technical field of underwater structure protection, and in particular to a self-locking anti-theft sealing device for underwater structures. Background Technology

[0002] The underwater structure self-locking sealing device is a protective device for underwater structures. It is mainly used in the protection of the manholes of underwater tunnels, underwater pump rooms, underwater structures and other facilities. By sealing and locking the manholes, it can prevent the intrusion of debris and block water leakage. It is an important supporting device to ensure the structural integrity of underwater structures, the normal operation of internal equipment and the convenience of operation and maintenance.

[0003] Currently, existing underwater structure access port sealing technology mainly relies on traditional cover plate sealing. Its core structure includes a cover plate, a sealing layer, fastening bolts, and a simple handle. Some devices are equipped with basic mechanical locks. In use, operators place the cover plate over the access port end face underwater, using the sealing layer to fill the gap between the cover plate and the port opening for initial waterproofing. The cover plate is then secured to the structure body with fastening bolts. Some devices require additional simple anti-theft locking via mechanical locks.

[0004] However, under long-term immersion, the sealant layer is prone to aging and peeling underwater, causing water to seep into the building and causing equipment corrosion and damage. At the same time, because the equipment uses ordinary mechanical locks, the cover plate is easy to pry open and has no self-locking function, making it difficult to resist illegal intrusion and putting the internal equipment at risk of theft. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a self-locking anti-theft sealing device for underwater structures.

[0006] This application provides a self-locking anti-theft sealing device for underwater structures, employing the following technical solution: A self-locking anti-theft sealing device for underwater structures includes a structure body, a cover plate, a locking mechanism, a self-locking drive mechanism, and a sealing mechanism. One side of the structure body is open, and a first corner guard is fixedly installed at the opening. The cover plate covers the opening of the structure body, and a second corner guard is fixedly installed on the cover plate. The locking mechanism is located on the cover plate and is used to lock the cover plate to the structure body. The self-locking drive mechanism is located on the cover plate and is used to drive the locking mechanism to operate. The sealing mechanism is located between the cover plate and the structure body and is used to seal the space between the structure body and the cover plate.

[0007] By adopting the above technical solution, when in use, the operator places the cover plate on the opening of the building body, and the sealing mechanism seals the cover plate with the building body; when the cover plate is placed on the opening of the building body, the operator drives the self-locking drive mechanism to work, the self-locking drive mechanism drives the locking mechanism to work, and the locking mechanism locks the cover plate with the building body, making it easy for the operator to place the cover plate on the building body.

[0008] Optionally, the locking mechanism includes a locking part and a receiving damping part; the locking part is located on the cover plate, and the locking part includes a first steel cylinder, a spring tongue, a rack, a first spring guard plate, and a first spring; a receiving groove is provided on the cover plate, and a receiving hole is provided on the second corner guard steel; the first steel cylinder passes through the receiving hole and is located in the receiving groove, and the side of the first steel cylinder away from the receiving groove is open; the spring tongue is slidably disposed in the first steel cylinder, and a driving groove is provided on one side of the spring tongue; the rack is located in the driving groove and is fixedly connected to the spring tongue; the first spring guard plate is located in the first steel cylinder and is fixedly connected to the spring tongue; the first spring is located in the receiving damping part. Inside the first steel cylinder, both ends are fixedly connected to the first steel cylinder and the first spring guard plate, respectively; the receiving damping part is located on the building body, and the receiving damping part includes a second steel cylinder, a second spring, a second spring guard plate, and a limiting plate; an installation groove is provided on the building body, and an installation hole is provided on the first corner guard steel; the second steel cylinder passes through the installation hole and is located in the installation groove, the second spring is located inside the second steel cylinder, and one end is fixedly connected to the second steel cylinder; the second spring guard plate is located inside the second steel cylinder and is fixedly connected to the end of the second spring near the cover plate; the limiting plate is located inside the second steel cylinder and is fixedly connected to the second steel cylinder.

[0009] By adopting the above technical solution, during use, the operator drives the self-locking drive mechanism to work. The self-locking drive mechanism drives the spring tongue to slide away from the second steel cylinder through the rack and pinion, and the first spring is in a compressed state. When the end of the spring tongue away from the first spring is inside the first steel cylinder, the operator drives the self-locking drive mechanism to stop working, and the self-locking drive mechanism is in a self-locking state. At this time, the cover plate can be easily placed on the opening of the building body. When the cover plate is placed on the opening of the building body, the operator drives the self-locking drive mechanism to release the self-locking state, the first spring returns to its original position, and the first spring drives one end of the spring tongue to be inside the second steel cylinder. When one end of the spring tongue is inside the second steel cylinder, the second spring and the second spring guard plate buffer the impact force when the spring tongue is inserted, the limiting plate restricts the movement stroke of the second spring guard plate, and the cover plate is locked to the building body, making it easy for the operator to place the cover plate on the building body.

[0010] Optionally, the locking mechanism further includes two sets of first limiting parts and two sets of second limiting parts; two sets of first clearance holes are provided on the first steel cylinder; the two sets of first limiting parts are respectively located on both sides of the first steel cylinder, and each first limiting part includes a third steel cylinder, a third spring, and a first reset pin; the third steel cylinder is fixedly disposed on one side of the first steel cylinder; the third spring is located inside the third steel cylinder, and one end is fixedly connected to the third steel cylinder; the first reset pin is located inside the third steel cylinder and is fixedly connected to one end of the third spring, and one end of the first reset pin passes through the first clearance hole and is located in the first steel cylinder. The first steel cylinder is located inside the first steel cylinder, and its end is hemispherical. Two sets of second clearance holes are provided on both sides of the first steel cylinder. The two sets of second limiting parts are located on both sides of the first steel cylinder, and the second limiting part includes a fourth steel cylinder, a fourth spring, and a second reset pin. The fourth steel cylinder is fixedly disposed on one side of the first steel cylinder. The fourth spring is located inside the fourth steel cylinder, and one end is fixedly connected to the fourth steel cylinder. The second reset pin is located inside the fourth steel cylinder and is fixedly connected to one end of the fourth spring. One end of the second reset pin passes through the second clearance hole and is located inside the first steel cylinder, and its end is hemispherical.

[0011] By adopting the above technical solution, when the operator drives the spring tongue to slide completely into the first steel cylinder through the self-locking drive mechanism, the first spring guard plate presses the first reset pin and the second reset pin respectively, so that the first reset pin and the second reset pin slide into the third steel cylinder and the fourth steel cylinder respectively; when the self-locking drive mechanism drives the cover plate to be placed on the building body, the external force driving the spring tongue to move is canceled. When the cover plate shakes and causes the spring tongue to move, the first reset pin and the second reset pin restrict the position of the spring tongue, so that when the sliding force of the spring tongue is less than the elastic force of the third spring and the fourth spring, the spring tongue is not easy to slide completely into the first steel cylinder.

[0012] Optionally, the self-locking drive mechanism includes a fifth steel cylinder, a steel cylinder cover, and a drive rod; the fifth steel cylinder is inserted into the cover plate, and one end is connected to the interior of the first steel cylinder; the steel cylinder cover covers the end of the fifth steel cylinder away from the first steel cylinder; the drive rod is horizontally arranged and inserted into the fifth steel cylinder; a rotating rod is fixedly arranged at the end of the drive rod away from the first steel cylinder, and a gear is fixedly arranged at the other end, the gear being located in the drive groove and meshing with the rack.

[0013] By adopting the above technical solution, when the operator needs to disengage the cover plate from the building body, the operator drives the drive rod to rotate by rotating the rod, the drive rod drives the gear to rotate, and the gear drives the rack to slide towards the first spring, so that the spring tongue can easily slide completely into the first steel cylinder. After the spring tongue has slid completely into the first steel cylinder, the operator drives the cover plate to disengage from the building body. When the cover plate is placed on the building body, the operator pulls out the drive rod from the fifth steel cylinder and screws the steel cylinder cover onto the opening of the fifth steel cylinder, so that external water flow cannot easily enter the fifth steel cylinder.

[0014] Optionally, the self-locking drive mechanism further includes a first locking part and a second locking part; the first locking part includes a first pawl, a first drive spring, and a first drive telescopic rod; a first inner ratchet is fixedly disposed inside the fifth steel cylinder; a first receiving groove is formed on the drive rod; the first pawl is located in the first receiving groove and is hinged to the drive rod, and the first pawl engages with the first inner ratchet; the first drive spring is located in the first receiving groove, and its two ends are fixedly connected to the first pawl and the drive rod respectively; the first drive telescopic rod is located in the first receiving groove, and its fixed end is hinged to the drive rod, and its movable end is hinged to the first pawl. The second locking part includes a second pawl, a second driving spring, and a second driving telescopic rod; a second inner ratchet is fixedly installed inside the fifth steel cylinder, and the locking direction of the second inner ratchet is opposite to that of the first inner ratchet; a second receiving groove is provided on the driving rod; the second pawl is located in the second receiving groove and is hinged to the driving rod, and the second pawl engages with the second inner ratchet; the second driving spring is located in the second receiving groove, and its two ends are fixedly connected to the second pawl and the driving rod respectively; the second driving telescopic rod is located in the second receiving groove, and its fixed end is hinged to the driving rod, and its movable end is hinged to the second pawl.

[0015] By adopting the above technical solution, when the operator needs to drive the drive rod to rotate, the operator drives the movable ends of the first and second drive telescopic rods to retract, causing the first and second pawls to disengage from the first and second inner ratchet wheels respectively, making it easier for the operator to rotate the drive rod. When the operator stops driving the rod to rotate, the operator drives the movable ends of the first and second drive telescopic rods to return to their original positions, and the first and second pawls engage with the first and second inner ratchet wheels respectively, making it difficult for the drive rod to rotate, thus realizing the self-locking function of the drive rod.

[0016] Optionally, the rotating rod is embedded with an unlocking box; the unlocking box has a first partition and a second partition vertically arranged inside, the first partition and the second partition being slidably arranged on both sides of the unlocking box, the first partition and the second partition dividing the unlocking box into a first liquid accumulation chamber, a receiving chamber and a second liquid accumulation chamber, the first liquid accumulation chamber and the second liquid accumulation chamber of the unlocking box being filled with liquid, the rodless chamber of the first drive telescopic rod and the rodless chamber of the second drive telescopic rod being filled with liquid, the first liquid accumulation chamber and the second liquid accumulation chamber of the unlocking box, the rodless chamber of the first drive telescopic rod and the rodless chamber of the second drive telescopic rod being connected by a pipe; a first pressing rod and a second pressing rod are respectively inserted at both ends of the rotating rod, the first pressing rod being fixedly connected to the first partition, and the second pressing rod being fixedly connected to the second partition; a return spring is provided in the receiving chamber of the unlocking box, the two ends of the return spring being fixedly connected to the first partition and the second partition respectively.

[0017] By adopting the above technical solution, when the operator needs to drive the drive rod to rotate, the operator presses the first pressing rod and the second pressing rod on both sides of the rotating rod. The first pressing rod drives the first partition to slide towards the second partition, increasing the volume of the first liquid accumulation chamber of the unlocking box. The second pressing rod drives the second partition to slide towards the first partition, increasing the volume of the second liquid accumulation chamber of the unlocking box. The return spring is in a compressed state, and negative pressure is generated in the first liquid accumulation chamber and the second liquid accumulation chamber of the unlocking box. The first liquid accumulation chamber and the second liquid accumulation chamber of the unlocking box absorb the liquid in the rodless chamber of the first drive telescopic rod and the rodless chamber of the second drive telescopic rod, making it easy for the movable ends of the first drive telescopic rod and the second drive telescopic rod to retract. The first pawl and the second pawl can easily disengage from the first inner ratchet and the second inner ratchet, respectively. When the first pawl and the second pawl disengage from the first inner ratchet and the second inner ratchet, respectively, the self-locking state of the drive rod is released, and the operator can easily drive the drive rod to rotate.

[0018] Optionally, the sealing mechanism is provided in four sets, and is located around the cover plate respectively; the sealing mechanism includes a water-stop pad, a fastening bolt, and a water-stop rubber ring; the water-stop pad is vertically arranged between the first corner guard and the second corner guard; one end of the fastening bolt passes through the water-stop pad and the second corner guard in sequence; the water-stop rubber ring is located between the first corner guard and the second corner guard, and its two sides are in contact with the first corner guard and the second corner guard.

[0019] By adopting the above technical solution, four sets of sealing mechanisms are distributed around the cover plate to form a full circumference seal; the water-stop rubber ring is tightly fitted with the first corner guard and the second corner guard, making it difficult for water to leak.

[0020] Optionally, four sets of locking mechanisms and self-locking drive mechanisms are provided, and are respectively located around the cover plate.

[0021] By adopting the above technical solution, four sets of locking mechanisms and self-locking drive mechanisms are evenly distributed around the cover plate, making it difficult for the cover plate to separate from the building body, improving the overall structural stability and anti-theft performance, and making it difficult for the cover plate to separate from the building body after the locking of a single locking mechanism and self-locking drive mechanism is broken.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By incorporating a locking mechanism, the cover plate is made to prevent it from easily detaching from the building; 2. By setting a self-locking drive mechanism, the locking mechanism is made easy to drive. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a partial cross-sectional view of an embodiment of this application, intended to show the first corner guard steel; Figure 3 yes Figure 2 A magnified view of a section at point A in the middle; Figure 4 yes Figure 2 A magnified view of a section at point B in the middle; Figure 5 This is a partial cross-sectional view of the drive rod in an embodiment of this application; Figure 6 This is a partial cross-sectional view of the first locking part in this embodiment of the application; Figure 7 This is a partial cross-sectional view of the second locking part in this embodiment of the application; Figure 8 This is a partial cross-sectional view of the embodiment of the present application to show the internal structure of the unlocking box.

[0024] Explanation of reference numerals in the attached drawings: 1. Building body; 11. First corner guard; 111. Mounting hole; 12. Mounting groove; 2. Cover plate; 21. Second corner guard; 211. Storage hole; 22. Storage groove; 23. Handle; 3. Locking mechanism; 31. Locking part; 311. First steel cylinder; 3111. First clearance hole; 3112. Second clearance hole; 312. Spring tongue; 3121. Drive groove; 313. Rack; 314. First spring guard plate; 315. First spring; 32. Receiving damping part; 321. Second steel cylinder; 322. Second spring; 323. Second spring guard plate; 324. Limiting plate; 33. First limiting part; 331. Third steel cylinder; 332. Third spring; 333. First reset pin; 34. Second limiting part; 341. Fourth steel cylinder; 342. 4. Fourth spring; 343. Second reset pin; 4. Self-locking drive mechanism; 41. Fifth steel cylinder; 411. First inner ratchet; 412. Second inner ratchet; 42. Steel cylinder cover; 43. Drive rod; 431. Rotating rod; 432. Gear; 433. First receiving groove; 434. Second receiving groove; 44. First locking part; 441. First pawl; 442. First drive spring; 443. First drive telescopic rod; 45. Second locking part; 451. Second pawl; 452. Second drive spring; 453. Second drive telescopic rod; 46. Unlocking box; 461. First partition; 462. Second partition; 463. First pressing rod; 464. Second pressing rod; 465. Reset spring; 5. Sealing mechanism; 51. Water-stop pad; 52. Fastening bolt; 53. Water-stop rubber ring. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0026] This application discloses a self-locking anti-theft sealing device for underwater structures. (See also...) Figure 1 and Figure 2 A self-locking anti-theft sealing device for underwater structures includes a structure body 1, a cover plate 2, a locking mechanism 3, a self-locking drive mechanism 4, and a sealing mechanism 5. One side of the structure body 1 is open, and a first corner guard 11 is fixedly installed at the opening of the structure body 1. The cover plate 2 covers the opening of the structure body 1, and a second corner guard 21 is fixedly installed on the cover plate 2. The locking mechanism 3 is located on the cover plate 2 and is used to lock the cover plate 2 to the structure body 1. The self-locking drive mechanism 4 is located on the cover plate 2 and is used to drive the locking mechanism 3 to work. The sealing mechanism 5 is located between the cover plate 2 and the structure body 1 and is used to seal the space between the structure body 1 and the cover plate 2.

[0027] In use, the operator places the cover plate 2 over the opening of the building body 1, and the sealing mechanism 5 seals the cover plate 2 with the building body 1. When the cover plate 2 is placed over the opening of the building, the operator drives the self-locking drive mechanism 4 to work, which in turn drives the locking mechanism 3 to work, and the locking mechanism 3 locks the cover plate 2 with the building body 1.

[0028] Reference Figure 2 The first corner guard angle steel 11 is welded with tie rods, which are welded or tied together with the reinforcing bars inside the building body 1. The second corner guard angle steel 21 is welded with tie rods, which are welded or tied together with the reinforcing bars inside the cover plate 2. The building body 1 has four sets of circular mounting slots 12, located on the four inner sidewalls of the opening in the building body 1. The first corner guard angle steel 11 has four sets of circular mounting holes 111, each corresponding to one of the four sets of mounting slots 12.

[0029] Reference Figure 1 and Figure 2 The cover plate 2 is vertically installed and is rectangular in shape. Four sets of circular storage slots 22 are provided on the cover plate 2, located on the four side walls of the cover plate 2. Four sets of circular storage holes 211 are provided on the second corner guard 21, each corresponding to one of the four sets of storage slots 22. A handle 23 is fixedly installed on the side of the cover plate 2 away from the building body 1.

[0030] Reference Figure 2 and Figure 3 The locking mechanism 3 has four sets, each corresponding to one of the four sets of storage slots 22. The locking mechanism 3 includes a locking part 31, a receiving damping part 32, two sets of first limiting parts 33, and two sets of second limiting parts 34. The locking part 31 is located on the cover plate 2, the receiving damping part 32 is located on the building body 1, and the two sets of first limiting parts 33 and the two sets of second limiting parts 34 are respectively located on both sides of the first steel cylinder 311.

[0031] The locking part 31 includes a first steel cylinder 311, a spring tongue 312, a rack 313, a first spring guard plate 314, and a first spring 315. The first steel cylinder 311 is cylindrical and passes through the receiving hole 211 within the receiving groove 22. The side of the first steel cylinder 311 away from the receiving groove 22 is open. The first steel cylinder 311 has two sets of first clearance holes 3111 and two sets of second clearance holes 3112, both of which are circular. The spring tongue 312 is located inside the first steel cylinder 311 and is slidably connected to the first steel cylinder 311 along its length. A drive groove 3121 is provided on one side of the spring tongue 312, and the drive groove 3121 is rectangular. The rack 313 is horizontally disposed within the drive groove 3121 and is fixedly connected to the spring tongue 312. The first spring guard plate 314 is located inside the first steel cylinder 311 and is circular in shape. The first spring guard plate 314 is fixedly connected to the spring tongue 312. The first spring 315 is located inside the first steel cylinder 311, and its two ends are fixedly connected to the first steel cylinder 311 and the first spring guard plate 314, respectively.

[0032] Reference Figure 2 and Figure 4 The receiving damping part 32 includes a second steel cylinder 321, a second spring 322, a second spring guard plate 323, and a limiting plate 324. The second steel cylinder 321 is cylindrical and passes through the mounting hole 111 within the mounting groove 12, with an open side away from the mounting groove 12. The second spring 322 is located inside the second steel cylinder 321, and one end is fixedly connected to it. The second spring guard plate 323 is located inside the second steel cylinder 321 and is cylindrical, fixedly connected to one end of the second spring 322. The limiting plate 324 is located inside the second steel cylinder 321 and is rectangular, fixedly connected to it.

[0033] Reference Figure 3 The first limiting part 33 includes a third steel cylinder 331, a third spring 332, and a first reset pin 333. The third steel cylinder 331 is fixedly disposed on one side of the first steel cylinder 311 and is cylindrical in shape. The third spring 332 is located inside the third steel cylinder 331, and one end is fixedly connected to the third steel cylinder 331. The first reset pin 333 is located inside the third steel cylinder 331 and is fixedly connected to one end of the third spring 332. One end of the first reset pin 333 passes through the first clearance hole 3111 and is located inside the first steel cylinder 311, and its end is hemispherical.

[0034] The second limiting part 34 includes a fourth steel cylinder 341, a fourth spring 342, and a second reset pin 343. The fourth steel cylinder 341 is fixedly disposed on one side of the first steel cylinder 311 and is cylindrical in shape. The fourth spring 342 is located inside the fourth steel cylinder 341, and one end is fixedly connected to the fourth steel cylinder 341. The second reset pin 343 is located inside the fourth steel cylinder 341 and is fixedly connected to one end of the fourth spring 342. One end of the second reset pin 343 passes through the second clearance hole 3112 and is located inside the first steel cylinder 311, and its end is hemispherical.

[0035] In use, the operator drives the self-locking drive mechanism 4 to operate. The self-locking drive mechanism 4 drives the spring tongue 312 to slide away from the second steel cylinder 321 via the rack 313, and the first spring 315 is in a compressed state. When the end of the spring tongue 312 away from the first spring 315 is inside the first steel cylinder 311, the operator drives the self-locking drive mechanism 4 to stop working, and the self-locking drive mechanism 4 is in a self-locking state. The operator then places the cover plate 2 over the opening of the building body 1.

[0036] When the cover plate 2 is placed over the opening of the building body 1, the operator drives the self-locking drive mechanism 4 to release the self-locking state, the first spring 315 returns to its original position, and the first spring 315 drives one end of the spring tongue 312 to be inside the second steel cylinder 321. When one end of the spring tongue 312 is inside the second steel cylinder 321, the second spring 322 and the second spring guard plate 323 buffer the impact force when the spring tongue 312 is inserted, and the limiting plate 324 restricts the movement stroke of the second spring guard plate 323, thus locking the cover plate 2 to the building body 1.

[0037] Reference Figure 2 , Figure 5 , Figure 6 and Figure 7The self-locking drive mechanism 4 has four sets, each corresponding to one of the four locking mechanisms 3. The self-locking drive mechanism 4 includes a fifth steel cylinder 41, a steel cylinder cover 42, a drive rod 43, a first locking part 44, a second locking part 45, and an unlocking box 46. The fifth steel cylinder 41 is inserted into the cover plate 2 and is cylindrical in shape. One end of the fifth steel cylinder 41 is connected to the interior of the first steel cylinder 311. A first inner ratchet 411 and a second inner ratchet 412 are fixedly installed inside the fifth steel cylinder 41. The locking direction of the second inner ratchet 412 is opposite to that of the first inner ratchet 411. The self-locking drive mechanism 4 has two states. After the self-locking drive mechanism 4 completes its driving operation, the steel cylinder cover 42 is placed on the fifth steel cylinder 41, and the operator applies polysulfide sealant to the steel cylinder cover 42. When the self-locking drive mechanism 4 is working, the drive rod 43 is horizontally inserted into the fifth steel cylinder 41 and is cylindrical in shape. A rotating rod 431 is fixedly installed at one end of the drive rod 43 away from the first steel cylinder 311, and a gear 432 is fixedly installed at the other end. The gear 432 is located in the drive groove 3121 and meshes with the rack 313. A first receiving groove 433 and a second receiving groove 434 are provided on one side of the drive rod 43. Both the first receiving groove 433 and the second receiving groove 434 are rectangular grooves.

[0038] Reference Figure 6 The first locking part 44 includes a first pawl 441, a first drive spring 442, and a first drive telescopic rod 443. The first pawl 441 is located in the first receiving groove 433 and is hinged to the drive rod 43. The first pawl 441 engages with the first inner ratchet 411. The first drive spring 442 is located in the first receiving groove 433, and its two ends are fixedly connected to the first pawl 441 and the drive rod 43, respectively. The first drive telescopic rod 443 is located in the first receiving groove 433, and its fixed end is hinged to the drive rod 43. The movable end of the first drive telescopic rod 443 is hinged to the first pawl 441, and the rodless cavity is filled with liquid.

[0039] Reference Figure 7 The second locking part 45 includes a second pawl 451, a second drive spring 452, and a second drive telescopic rod 453. The second pawl 451 is located in the second receiving groove 434 and is hinged to the drive rod 43. The second pawl 451 engages with the second inner ratchet 412. The second drive spring 452 is located in the second receiving groove 434, and its two ends are fixedly connected to the second pawl 451 and the drive rod 43, respectively. The second drive telescopic rod 453 is located in the second receiving groove 434, and its fixed end is hinged to the drive rod 43. The movable end of the second drive telescopic rod 453 is hinged to the second pawl 451, and the rodless cavity is filled with liquid.

[0040] Reference Figure 8The unlocking box 46 is embedded within the rotating rod 431 and is rectangular in shape. A first partition 461 and a second partition 462 are vertically arranged inside the unlocking box 46. Both the first partition 461 and the second partition 462 are rectangular plates and are slidably disposed on opposite sides of the unlocking box 46, dividing the unlocking box 46 into a first liquid accumulation chamber, a receiving chamber, and a second liquid accumulation chamber. The first and second liquid accumulation chambers of the unlocking box 46 are filled with liquid, and a pipe connects the first liquid accumulation chamber, the second liquid accumulation chamber, the rodless chamber of the first driving telescopic rod 443, and the rodless chamber of the second driving telescopic rod 453. A first pressing rod 463 and a second pressing rod 464 are respectively inserted into both ends of the rotating rod 431. Both the first pressing rod 463 and the second pressing rod 464 are rectangular rods. The first pressing rod 463 is fixedly connected to the first partition 461, and the second pressing rod 464 is fixedly connected to the second partition 462. A reset spring 465 is provided in the receiving cavity of the unlocking box 46, and the two ends of the reset spring 465 are fixedly connected to the first partition 461 and the second partition 462 respectively.

[0041] Reference Figure 2 The sealing mechanism 5 consists of four sets, located around the perimeter of the cover plate 2. The sealing mechanism 5 includes a water-stop pad 51, fastening bolts 52, and a water-stop rubber ring 53. The water-stop pad 51 is vertically positioned between the first corner guard 11 and the second corner guard 21. One end of the fastening bolt 52 passes through the water-stop pad 51 and the second corner guard 21 in sequence. The water-stop rubber ring 53 is located between the first corner guard 11 and the second corner guard 21, and its two sides are in contact with both corner guard 11 and the second corner guard 21. A stainless steel plate is abutted against the side of the water-stop rubber ring 53 away from the water-stop pad 51. The operator then applies polysulfide sealant and cement mortar sequentially onto the stainless steel plate.

[0042] When the operator needs to place the cover plate 2 over the opening of the building body 1, the operator presses the first pressing rod 463 and the second pressing rod 464. The first pressing rod 463 drives the first partition 461 to slide towards the second partition 462, increasing the volume of the first liquid chamber of the unlocking box 46. The second pressing rod 464 drives the second partition 462 to slide towards the first partition 461, increasing the volume of the second liquid chamber of the unlocking box 46. The return spring 465 is compressed, creating negative pressure in the first and second liquid chambers of the unlocking box 46. The second liquid accumulation chamber of the lock box 46 absorbs the liquid in the rodless chambers of the first and second drive telescopic rods 443 and 453. The movable ends of the first and second drive telescopic rods 443 and 453 are easily retracted. The first pawl 441 and the second pawl 451 are disengaged from the first and second inner ratchet wheels 411 and 412, respectively. The operator drives the drive rod 43 to rotate by rotating the rod 431. The drive rod 43 drives the gear 432 to rotate. The gear 432 drives the rack 313 to slide away from the first spring 315. One end of the spring tongue 312 slides into the second steel cylinder 321. After one end of the spring tongue 312 slides into the second steel cylinder 321, the operator pulls the drive rod 43 out of the fifth steel cylinder 41 and screws the steel cylinder cover 42 onto the opening of the fifth steel cylinder 41.

[0043] The implementation principle of a self-locking anti-theft sealing device for underwater structures according to an embodiment of this application is as follows: When the operator needs to disengage the cover plate 2 from the building body 1, the operator presses the first pressing rod 463 and the second pressing rod 464 on both sides of the rotating rod 431. The first pressing rod 463 drives the first partition 461 to slide towards the second partition 462, increasing the volume of the first liquid chamber of the unlocking box 46. The second pressing rod 464 drives the second partition 462 to slide towards the first partition 461, increasing the volume of the second liquid chamber of the unlocking box 46. The return spring 465 is compressed, creating negative pressure in both the first and second liquid chambers of the unlocking box 46. The liquid chamber and the second liquid accumulation chamber of the unlocking box 46 absorb the liquid in the rodless chamber of the first drive telescopic rod 443 and the rodless chamber of the second drive telescopic rod 453. The movable ends of the first drive telescopic rod 443 and the second drive telescopic rod 453 are easy to retract. The first pawl 441 and the second pawl 451 are disengaged from the first inner ratchet 411 and the second inner ratchet 412, respectively. The operator drives the drive rod 43 to rotate by rotating the rod 431. The drive rod 43 drives the gear 432 to rotate. The gear 432 drives the rack 313 to slide towards the first spring 315. The spring tongue 312 slides completely into the first steel cylinder 311.

[0044] When the operator stops driving the rotating rod 431 to rotate, the operator drives the movable ends of the first driving telescopic rod 443 and the second driving telescopic rod 453 to reset. The first pawl 441 and the second pawl 451 engage with the first inner ratchet 411 and the second inner ratchet 412 respectively, realizing the self-locking function of the driving rod 43. After the four sets of spring tongues 312 have completely slid to the four sets of first steel cylinders 311, the operator drives the cover plate 2 to disengage from the building body 1.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-locking anti-theft sealing device for underwater structures, characterized in that: The system includes a building body (1), a cover plate (2), a locking mechanism (3), a self-locking drive mechanism (4), and a sealing mechanism (5). One side of the building body (1) is open, and a first corner guard (11) is fixedly installed at the opening of the building body (1). The cover plate (2) covers the opening of the building body (1), and a second corner guard (21) is fixedly installed on the cover plate (2). The locking mechanism (3) is located on the cover plate (2) and is used to drive the cover plate (2) to lock with the building body (1). The self-locking drive mechanism (4) is located on the cover plate (2) and is used to drive the locking mechanism (3) to work. The sealing mechanism (5) is located between the cover plate (2) and the building body (1) and is used to seal the space between the building body (1) and the cover plate (2).

2. The self-locking anti-theft sealing device for underwater structures according to claim 1, characterized in that: The locking mechanism (3) includes a locking part (31) and a receiving damping part (32); the locking part (31) is located on the cover plate (2), and the locking part (31) includes a first steel cylinder (311), a spring tongue (312), a rack (313), a first spring guard plate (314), and a first spring (315); a storage groove (22) is provided on the cover plate (2), and a storage hole (211) is provided on the second corner guard steel (21); the first steel cylinder (311) passes through the storage hole (211). 11) Located within the storage slot (22); the spring tongue (312) is slidably disposed within the first steel cylinder (311), and a drive groove (3121) is provided on one side of the spring tongue (312); the rack (313) is located within the drive groove (3121) and is fixedly connected to the spring tongue (312); the first spring guard plate (314) is located within the first steel cylinder (311) and is fixedly connected to the spring tongue (312); the first spring (315) is located within the first... Inside a steel cylinder (311), both ends are fixedly connected to the first steel cylinder (311) and the first spring guard plate (314) respectively; the receiving damping part (32) is located on the building body (1), and the receiving damping part (32) includes a second steel cylinder (321), a second spring (322), a second spring guard plate (323), and a limiting plate (324); an installation groove (12) is provided on the building body (1), and an installation hole (111) is provided on the first corner guard (11); The second steel cylinder (321) passes through the mounting hole (111) and is located in the mounting groove (12). The second spring (322) is located in the second steel cylinder (321) and one end is fixedly connected to the second steel cylinder (321). The second spring guard plate (323) is located in the second steel cylinder (321) and is fixedly connected to one end of the second spring (322). The limiting plate (324) is located in the second steel cylinder (321) and is fixedly connected to the second steel cylinder (321).

3. A self-locking anti-theft sealing device for underwater structures according to claim 2, characterized in that: The locking mechanism (3) further includes two sets of first limiting parts (33) and two sets of second limiting parts (34); two sets of first clearance holes (3111) are provided on the first steel cylinder (311); the two sets of first limiting parts (33) are respectively located on both sides of the first steel cylinder (311), and the first limiting part (33) includes a third steel cylinder (331), a third spring (332) and a first reset pin (333); the third steel cylinder (331) is fixedly disposed on one side of the first steel cylinder (311); the third spring (332) is located inside the third steel cylinder (331), and one end is fixedly connected to the third steel cylinder (331); the first reset pin (333) is located inside the third steel cylinder (331), and is fixedly connected to one end of the third spring (332), and one end of the first reset pin (333) passes through the first clearance hole (3111) and is located on the first The first steel cylinder (311) is located inside the first steel cylinder (311) and has a hemispherical end. Two sets of second clearance holes (3112) are provided on both sides of the first steel cylinder (311). Two sets of second limiting parts (34) are located on both sides of the first steel cylinder (311). The second limiting part (34) includes a fourth steel cylinder (341), a fourth spring (342), and a second reset pin (343). The fourth steel cylinder (341) is fixedly installed on one side of the first steel cylinder (311). The fourth spring (342) is located inside the fourth steel cylinder (341) and is fixedly connected to the fourth steel cylinder (341) at one end. The second reset pin (343) is located inside the fourth steel cylinder (341) and is fixedly connected to one end of the fourth spring (342). One end of the second reset pin (343) passes through the second clearance hole (3112) and is located inside the first steel cylinder (311), and has a hemispherical end.

4. A self-locking anti-theft sealing device for underwater structures according to claim 2, characterized in that: The self-locking drive mechanism (4) includes a fifth steel cylinder (41), a steel cylinder cover (42), and a drive rod (43); the fifth steel cylinder (41) is inserted into the cover plate (2), and one end is connected to the inside of the first steel cylinder (311); the steel cylinder cover (42) covers the end of the fifth steel cylinder (41) away from the first steel cylinder (311); the drive rod (43) is inserted into the fifth steel cylinder (41); a rotating rod (431) is fixedly provided at one end of the drive rod (43) away from the first steel cylinder (311), and a gear (432) is fixedly provided at the other end. The gear (432) is located in the drive groove (3121) and meshes with the rack (313).

5. A self-locking anti-theft sealing device for underwater structures according to claim 4, characterized in that: The self-locking drive mechanism (4) further includes a first locking part (44) and a second locking part (45); the first locking part (44) includes a first pawl (441), a first drive spring (442), and a first drive telescopic rod (443); a first inner ratchet (411) is fixedly installed inside the fifth steel cylinder (41); a first receiving groove (433) is provided on the drive rod (43); the first pawl (441) is located in the first receiving groove (433) and is connected to the drive rod (431). The first pawl (441) is hinged to the first inner ratchet (411); the first drive spring (442) is located in the first receiving groove (433), and its two ends are fixedly connected to the first pawl (441) and the drive rod (43) respectively; the first drive telescopic rod (443) is located in the first receiving groove (433), and its fixed end is hinged to the drive rod (43), and the movable end of the first drive telescopic rod (443) is hinged to the first pawl (441). The second locking part (45) includes a second pawl (451), a second drive spring (452), and a second drive telescopic rod (453); a second inner ratchet (412) is fixedly installed inside the fifth steel cylinder (41), and the locking direction of the second inner ratchet (412) is opposite to that of the first inner ratchet (411); a second receiving groove (434) is provided on the drive rod (43); the second pawl (451) is located in the second receiving groove (434) and is connected to the drive rod (43). The second pawl (451) is hinged to the second inner ratchet (412); the second drive spring (452) is located in the second receiving groove (434) and its two ends are fixedly connected to the second pawl (451) and the drive rod (43) respectively; the second drive telescopic rod (453) is located in the second receiving groove (434) and its fixed end is hinged to the drive rod (43), and the movable end of the second drive telescopic rod (453) is hinged to the second pawl (451).

6. A self-locking anti-theft sealing device for underwater structures according to claim 5, characterized in that: The rotating rod (431) is embedded with an unlocking box (46); the unlocking box (46) is vertically provided with a first partition (461) and a second partition (462), the first partition (461) and the second partition (462) are respectively slidably disposed on both sides of the unlocking box (46), the first partition (461) and the second partition (462) divide the unlocking box (46) into a first liquid accumulation chamber, a receiving chamber and a second liquid accumulation chamber, the first liquid accumulation chamber and the second liquid accumulation chamber of the unlocking box (46) are filled with liquid, the rodless chamber of the first driving telescopic rod (443) and the rodless chamber of the second driving telescopic rod (453) are both filled with liquid, the unlocking box The first fluid chamber of (46), the second fluid chamber of the unlocking box (46), the rodless chamber of the first driving telescopic rod (443), and the rodless chamber of the second driving telescopic rod (453) are connected by a pipe; the two ends of the rotating rod (431) are respectively provided with a first pressing rod (463) and a second pressing rod (464), the first pressing rod (463) is fixedly connected to the first partition (461), and the second pressing rod (464) is fixedly connected to the second partition (462); a reset spring (465) is provided in the accommodating cavity of the unlocking box (46), and the two ends of the reset spring (465) are respectively fixedly connected to the first partition (461) and the second partition (462).

7. A self-locking anti-theft sealing device for underwater structures according to claim 1, characterized in that: The sealing mechanism (5) is provided in four sets, and is located around the cover plate (2) respectively; the sealing mechanism (5) includes a water-stop pad (51), a fastening bolt (52) and a water-stop rubber ring (53); the water-stop pad (51) is vertically arranged between the first corner guard (11) and the second corner guard (21); one end of the fastening bolt (52) passes through the water-stop pad (51) and the second corner guard (21) in sequence; the water-stop rubber ring (53) is located between the first corner guard (11) and the second corner guard (21), and its two sides are in contact with the first corner guard (11) and the second corner guard (21).

8. A self-locking anti-theft sealing device for underwater structures according to claim 1, characterized in that: The locking mechanism (3) and the self-locking drive mechanism (4) are provided in four sets, and are located around the cover plate (2) respectively.

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