Soft foundation bottom-supported type suction buoyancy tank with anti-sliding function

Abstract

The invention relates to the technical field of seabed buoyancy tank construction, and discloses a soft foundation bottom-sitting type suction buoyancy tank with an anti-sliding function, the soft foundation bottom-sitting type suction buoyancy tank comprises a ballast tank and a pump cabin fixed at the top of the ballast tank, the bottom of the ballast tank is provided with a plurality of cavities, and a plurality of seawater pipes with the bottom ends extending into the cavities are fixed to the bottom of the ballast tank in a penetrating mode; a water inlet pipe and a water outlet pipe are fixed to the top of the pump room in a penetrating mode, one end of the water inlet pipe and one end of the water outlet pipe are connected with a fourth valve and a fifth valve respectively, one end of the fourth valve is connected with a sixth valve and a seventh valve, and one end of the fifth valve is connected with an eighth valve and a ninth valve. A sea water pump is connected between the sixth valve and the eighth valve, and a plurality of third valves are connected between the seventh valve and the ninth valve. The floating box is adsorbed on the seabed, and the edge of the bottom of the ballast tank can be partially inserted into the seabed, so that the anti-sliding capacity and the stability of the ballast tank are enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of seabed pontoon construction, in particular to a soft foundation bottom-sitting suction pontoon with anti-sliding function. BACKGROUND

[0002] The bottom-sitting pontoon is placed on the seabed through ballast tanks and the self-weight of the structure, and is stably supported in seawater through the static friction force between the gravity and the seabed base, so as to ensure the stability in seawater and avoid overturning, sliding and other instability phenomena during long-term residence on the seabed.

[0003] However, when the bottom-sitting pontoon is placed on the soft foundation seabed, the friction coefficient between the bottom of the pontoon and the surface layer of the soft foundation seabed is low, and when extreme working conditions such as typhoon, huge wave or strong ocean current are encountered, the huge horizontal thrust generated will easily exceed the friction resistance between the bottom of the pontoon and the surface layer of the soft foundation seabed, which will cause uncontrollable horizontal sliding of the pontoon and the top structure, and make it deviate from the preset station, thereby seriously threatening the stability and integrity of the structure. SUMMARY

[0004] The purpose of the present application is to provide a soft foundation bottom-sitting suction pontoon with anti-sliding function to solve the problems mentioned above.

[0005] To achieve the above purpose, the present application provides the following technical scheme: The soft foundation bottom-sitting suction pontoon with anti-sliding function comprises a ballast tank and a pump cabin fixed on the top of the ballast tank, the bottom of the ballast tank is provided with a plurality of cavities, a plurality of bottom-end corresponding sea water pipes respectively penetrating into the cavities are fixed through the bottom of the ballast tank, each sea water pipe is provided with an anti-blocking assembly at the bottom end, each sea water pipe is provided with a pressure sensor on one side, each sea water pipe penetrates through the top of the ballast tank and extends into the pump cabin at the top end, each sea water pipe is connected with a third valve at the top end, a water inlet pipe and a drain pipe are fixed through the top of the pump cabin, one end of the water inlet pipe and the drain pipe is respectively connected with a fourth valve and a fifth valve, one end of the fourth valve is connected with a sixth valve and a seventh valve, one end of the fifth valve is connected with an eighth valve and a ninth valve, a sea water pump is connected between the sixth valve and the eighth valve, and the seventh valve and the ninth valve are connected with a plurality of third valves.

[0006] As a preferred scheme of the soft foundation bottom-sitting suction pontoon with anti-sliding function, the top of the pump cabin is fixed through a gas permeable pipe, the gas permeable pipe is provided with a first valve, and one end of the gas permeable pipe is communicated with a plurality of sea water pipes.

[0007] As a preferred scheme of the soft foundation bottom-sitting suction pontoon with anti-sliding function, a water inlet filter screen is arranged at the inlet of the water inlet pipe.

[0008] As a preferred scheme of the soft foundation bottom sitting type suction float of the application with the anti-sliding function, a plurality of spray pipes are connected between the seventh valve and the ninth valve, each of the spray pipes is provided with a second valve, and a plurality of groups of nozzles are arranged on both sides of the cavity in the ballast tank, and each group of nozzles is in one-to-one correspondence with a plurality of spray pipes.

[0009] As a preferred scheme of the soft foundation bottom sitting type suction float of the application with the anti-sliding function, the plurality of groups of nozzles are staggered from top to bottom, and the plurality of groups of nozzles are all arranged in an upward inclination.

[0010] As a preferred scheme of the soft foundation bottom sitting type suction float of the application with the anti-sliding function, the anti-blocking assembly comprises a support seat fixed to the bottom of the seawater pipe, an annular filter screen fixedly connected to the support seat, a main shaft coaxial with the annular filter screen rotatably arranged on the support seat, an impeller fixedly installed at one end of the main shaft, a rotating disc fixedly installed outside the main shaft, and a scraper with an arc structure fixedly installed at the bottom of the rotating disc and abutting against the outside of the annular filter screen.

[0011] As a preferred scheme of the soft foundation bottom sitting type suction float of the application with the anti-sliding function, a rotating seat is fixedly installed at the bottom of the rotating disc and inside the annular filter screen, a rotating shaft is rotatably connected in the rotating seat, a plurality of cleaning rollers are fixedly installed outside the rotating shaft, a plurality of top blocks are circumferentially arrayed and fixed outside each cleaning roller, each top block can penetrate through a filter hole of the annular filter screen, and the top block penetrating through the filter hole of the annular filter screen is located at the front side of the scraper in the rotating direction of the rotating disc.

[0012] As a preferred scheme of the soft foundation bottom sitting type suction float of the application with the anti-sliding function, a gear is coaxially fixed outside the rotating shaft, a gear ring is fixedly installed at the top of the annular filter screen, and the gear is meshingly connected with the gear ring.

[0013] As a preferred scheme of the soft foundation bottom sitting type suction float of the application with the anti-sliding function, a cleaning brush is rotatably connected to the bottom of the rotating disc and outside the annular filter screen, a cleaning part of the cleaning brush abuts against the outside of the annular filter screen, and the cleaning brush is located at the front side of the top block penetrating through the filter hole of the annular filter screen in the rotating direction of the rotating disc.

[0014] As a preferred scheme of the soft foundation bottom sitting type suction float of the application with the anti-sliding function, a belt pulley is coaxially fixed to the top of the rotating shaft and the cleaning brush, and a belt is transmissionally connected between the two belt pulleys.

[0015] Compared with the prior art, the application has the following beneficial effects: 1. The present application is when sitting on the bottom, ballast tank and structure gravity makes the buoyancy tank to sink to the seabed, the bottom of the ballast tank is in contact with the soft foundation seabed, after its stability, the cavity of the bottom of the ballast tank is closed outside, then through the seawater pump and seawater pipe, part of the seawater and mud in the cavity is discharged, so that the cavity forms a set of negative pressure, so that the buoyancy tank is adsorbed on the seabed, and the edge of the cavity of the bottom of the ballast tank is also inserted into the seabed due to the negative pressure, so as to enhance its anti-sliding ability and stability.

[0016] 2. The pressure in the seawater pipe corresponding to the cavity is monitored in real time by the pressure sensor arranged on one side of the seawater pipe, when the negative pressure is formed and reaches a certain set value, the automatic control system will close the third valve corresponding to the pipe section, when all the seawater pipes corresponding to the cavities reach the set negative pressure value, the seawater pump stops working; when the negative pressure value in the seawater pipe under a certain cavity decreases due to water seepage, the automatic control system starts the seawater pump and opens the third valve on the corresponding seawater pipe, continues to discharge part of the seawater and mud in the cavity, so as to keep a certain negative pressure under the ballast tank at all times, ensure the stability of the buoyancy tank and avoid sliding.

[0017] 3. When the buoyancy tank is floating up, the self-weight of the ballast tank is reduced at the same time, seawater is injected into the cavity, so that a certain positive pressure is formed inside, so as to get rid of the adsorption effect, and at the same time, the nozzles on the side wall of the ballast tank are sprayed by the spray pipe, so that the sprayed seawater washes the mud near the side wall surface of the ballast tank, so as to facilitate the edge of the cavity at the bottom of the ballast tank to come out of the seabed, thereby reducing the resistance when the buoyancy tank is floating up.

[0018] 4. The present application is provided with an anti-blocking assembly, when the seawater pump and seawater pipe discharge part of the seawater and mud in the cavity, the stones and other larger particles in the soft foundation seabed are blocked outside the annular filter screen by the annular filter screen of the anti-blocking assembly, the stones and other larger particles are difficult to separate due to the suction force inside the seawater pipe, and after a long time of use, the annular filter screen is easy to be blocked, so that the pressure in the seawater pipe is less than the pressure in the cavity when seawater is pumped, and then the negative pressure in the cavity does not reach the set value when the third valve is closed, so that the adsorption force is reduced and sliding is easy to occur, therefore, in the process of pumping seawater, the water flow in the seawater pipe drives the impeller to rotate, so that the main shaft drives the rotating disc to rotate, and then the rotating seat and the scraper are rotated, when the rotating seat rotates, the rotating shaft is driven to rotate by the engagement of the gear and the gear ring, and then the top block is inserted into the filter hole of the annular filter screen in turn to push out the stones and other larger particles, and then the scraper is used to scrape off the stones and other larger particles, so as to ensure the cleanliness of the annular filter screen and avoid the adsorption force being reduced due to the blocking of the annular filter screen.

[0019] 5、The present application avoids the impact between the scraper and the stone and other larger particle materials extending into the filter hole when the scraper removes the stone and other larger particle materials, thereby avoiding damage to the scraper and improving the service life of the equipment.

[0020] 6、The present application drives the cleaning brush to rotate through the belt drive while the cleaning roller is rotating, so that when the rotating disc rotates, the rotating cleaning brush sweeps the outside of the annular filter screen located in front of the scraper and the cleaning roller. On the one hand, the rotating cleaning brush can disturb the stone and other larger particle materials to loosen them for the push block to push out. On the other hand, before the scraper removes the impurities on the surface of the annular filter screen, the cleaning brush can preferentially peel off the loose impurities attached to the surface of the annular filter screen, and the shear force generated by the cleaning brush during rotation can also reduce the adhesion between the impurities and the annular filter screen, which helps to reduce the resistance when the subsequent scraper cleans the impurities, improves the cleaning effect of the annular filter screen, and also helps to prolong the replacement cycle of the scraper and reduce the equipment maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a first perspective structural schematic diagram of the present application.

[0022] Figure 2 It is a second perspective structural schematic diagram of the present application.

[0023] Figure 3 It is a first cross-sectional structural schematic diagram of the present application.

[0024] Figure 4 It is a second cross-sectional structural schematic diagram of the present application.

[0025] Figure 5 It is a third cross-sectional structural schematic diagram of the present application.

[0026] Figure 6 It is a sea water pipe assembly perspective structural schematic diagram of the present application.

[0027] Figure 7 It is a first perspective structural schematic diagram of the anti-blocking assembly of the present application.

[0028] Figure 8 It is a second perspective structural schematic diagram of the anti-blocking assembly of the present application.

[0029] Figure 9 It is a cross-sectional structural schematic diagram of the anti-blocking assembly of the present application.

[0030] Figure 10 It is an enlarged structural schematic diagram of A of the present application. Figure 9

[0031] Figure 11 It is a impeller assembly perspective structural schematic diagram of the present application.

[0032] Figure 12 ​The schematic diagram of the sectional structure of the rotary disc assembly of the present application.

[0033] Figure 13 The schematic diagram of the three-dimensional structure of the ring filter assembly of the present application.

[0034] Figure 14 The schematic diagram of the three-dimensional structure of the rotary seat assembly of the present application.

[0035] In the figure: 1, ballast tank; 2, pump cabin; 3, air pipe; 31, first valve; 4, support seat; 41, ring filter; 411, gear ring; 42, cleaning brush; 43, scraper; 44, rotary disc; 45, main shaft; 46, impeller; 47, rotary seat; 471, rotating shaft; 472, cleaning roller; 473, top block; 474, gear; 48, pulley; 481, belt; 5, cavity; 51, spray pipe; 511, second valve; 512, nozzle; 52, seawater pipe; 521, third valve; 522, pressure sensor; 53, water inlet pipe; 531, fourth valve; 532, water inlet filter; 54, drain pipe; 541, fifth valve; 55, seawater pump; 551, sixth valve; 552, seventh valve; 553, eighth valve; 554, ninth valve. DETAILED DESCRIPTION

[0036] The features and exemplary embodiments of the various aspects of the present application will be described below in detail. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one of ordinary skill in the art that the present application can be practiced without some or all of these specific details. The description of the embodiments is merely to provide a better understanding of the present application. The present application is not limited to any particular configuration and algorithm set forth below, but covers any modifications, equivalents, and alternatives falling within the spirit of the present application. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessary obscuring of the present application.

[0037] Example 1, with reference to Figures 1-6For the first embodiment of the present application, a soft foundation bottom sitting type suction float box with anti-sliding function is provided, which comprises a ballast cabin 1 and a pump cabin 2 fixed on the top of the ballast cabin 1. The bottom of the ballast cabin 1 is provided with a plurality of cavities 5. A plurality of seawater pipes 52 corresponding to the cavities 5 are fixed through the bottom of the ballast cabin 1. The bottom end of each seawater pipe 52 is provided with an anti-blocking assembly. One side of each seawater pipe 52 is provided with a pressure sensor 522. The top end of each seawater pipe 52 penetrates through the top of the ballast cabin 1 and extends into the pump cabin 2. The top end of each seawater pipe 52 is connected with a third valve 521. The top of the pump cabin 2 is fixed with a water inlet pipe 53 and a drain pipe 54. One end of the water inlet pipe 53 and the drain pipe 54 is connected with a fourth valve 531 and a fifth valve 541 respectively. One end of the fourth valve 531 is connected with a sixth valve 551 and a seventh valve 552. One end of the fifth valve 541 is connected with an eighth valve 553 and a ninth valve 554. The sixth valve 551 and the eighth valve 553 are connected with a seawater pump 55. The seventh valve 552 and the ninth valve 554 are connected with a plurality of third valves 521.

[0038] The top of the pump cabin 2 is fixed with an air pipe 3. The air pipe 3 is provided with a first valve 31. One end of the air pipe 3 is communicated with a plurality of seawater pipes 52.

[0039] The inlet of the water inlet pipe 53 is provided with a water inlet filter screen 532.

[0040] During use, the pontoon sinks in water by the gravity of the ballast tank 1 and the structure until the bottom of the ballast tank 1 contacts with the soft foundation seabed, so that the pontoon sits on the bottom, and after the pontoon is stabilized, the bottom edge of the ballast tank 1 forms a closed space in the plurality of cavities 5, then the control system opens the fifth valve 541, the eighth valve 553, the sixth valve 551, the seventh valve 552 on the drain pipe 54 and the third valve 521 on the plurality of seawater pipes 52, and then starts the seawater pump 55 to suck seawater, so that part of the seawater and the mud in the cavity 5 pass through the seawater pipe 52, the third valve 521, the seventh valve 552, the sixth valve 551, the seawater pump 55, the eighth valve 553 and the fifth valve 541 in sequence, and finally are discharged through the drain pipe 54, so that the cavity 5 forms a negative pressure, and the pressure sensor 522 on one side of the seawater pipe 52 monitors the pressure in the seawater pipe 52 in real time, because the seawater pipe 52 is communicated with the cavity 5, so that the pressure sensor 522 monitors the pressure in the cavity 5 in real time, when the monitoring data of the pressure sensor 522 decreases to a set value, the control system controls the third valve 521 on the corresponding seawater pipe 52 to close, so that the corresponding cavity 5 forms a set negative pressure, when all the cavities 5 reach the set negative pressure value, the seawater pump 55 stops working, and the negative pressure in the cavity 5 makes the bottom of the ballast tank 1 adsorbed on the soft foundation seabed through the cavity 5, and the edge of the cavity 5 at the bottom of the ballast tank 1 also partially inserts into the soft foundation seabed due to the negative pressure, so as to enhance the anti-sliding ability and stability of the pontoon.

[0041] The plurality of cavities 5 are independent structures, when the bottom of one of the cavities 5 seeps water and causes the negative pressure value in the seawater pipe 52 to decrease, the remaining cavities 5 can still play an adsorption role, to a certain extent, to prevent the pontoon from sliding, at the same time, the automatic control system starts the seawater pump 55 and opens the third valve 521 on the corresponding seawater pipe 52, so that the seawater and the mud in the cavity 5 are continuously discharged through the seawater pipe 52 until the value of the pressure sensor 522 decreases to the set value again, so as to keep the cavity 5 under the ballast tank 1 always maintaining a set negative pressure, so as to ensure the stability of the pontoon and avoid sliding.

[0042] In addition, when the floating box is moving upwards, the structural weight is reduced by draining the ballast tank 1, so that the upward buoyancy is generated, and seawater is injected into the cavity 5, so that a certain positive pressure is formed in the cavity 5, thereby getting rid of the adsorption effect. The specific operation is as follows: the control system opens the fourth valve 531, the sixth valve 551, the eighth valve 553, the ninth valve 554 on the water inlet pipe 53 and the third valve 521 on the plurality of seawater pipes 52, and then starts the seawater pump 55 to suck seawater, so that the seawater from the outside of the water inlet pipe 53 passes through the fourth valve 531, the sixth valve 551, the eighth valve 553, the ninth valve 554, the third valve 521 on the plurality of seawater pipes 52 and the plurality of seawater pipes 52 in sequence, and finally enters the cavity 5. At the same time, the water inlet filter screen 532 at the inlet of the water inlet pipe 53 filters the water inlet. After the seawater is introduced into the cavity 5, the pressure in the cavity 5 is increased, so that a positive pressure is generated in the cavity 5, thereby getting rid of the adsorption effect, and facilitating the separation of the bottom of the ballast tank 1 from the soft foundation seabed.

[0043] In addition, when the floating box is moving upwards, the structural weight is reduced by draining the ballast tank 1, so that the upward buoyancy is generated, and seawater is injected into the cavity 5, so that a certain positive pressure is formed in the cavity 5, thereby getting rid of the adsorption effect. The specific operation is as follows: the control system opens the fourth valve 531, the sixth valve 551, the eighth valve 553, the ninth valve 554 on the water inlet pipe 53 and the third valve 521 on the plurality of seawater pipes 52, and then starts the seawater pump 55 to suck seawater, so that the seawater from the outside of the water inlet pipe 53 passes through the fourth valve 531, the sixth valve 551, the eighth valve 553, the ninth valve 554, the third valve 521 on the plurality of seawater pipes 52 and the plurality of seawater pipes 52 in sequence, and finally enters the cavity 5. At the same time, the water inlet filter screen 532 at the inlet of the water inlet pipe 53 filters the water inlet. After the seawater is introduced into the cavity 5, the pressure in the cavity 5 is increased, so that a positive pressure is generated in the cavity 5, thereby getting rid of the adsorption effect, and facilitating the separation of the bottom of the ballast tank 1 from the soft foundation seabed.

[0044] Embodiment 2, with reference to Figures 1-6 The second embodiment of the present application is different from the first embodiment in that: The seventh valve 552 and the ninth valve 554 are connected with a plurality of spray pipes 51, each of which is provided with a second valve 511, and a plurality of groups of nozzles 512 are arranged on both sides of the cavity 5 in the ballast tank 1, each group of nozzles 512 is correspondingly communicated with a plurality of spray pipes 51.

[0045] The plurality of groups of nozzles 512 are staggered from top to bottom, and the plurality of groups of nozzles 512 are inclined upward.

[0046] During use, when seawater is injected into the cavity 5 during the upward movement of the floating box, the control system simultaneously opens the second valve 511, and the seawater sucked from the water inlet pipe 53 by the seawater pump 55 is partially branched into the plurality of spray pipes 51 after passing through the ninth valve 554, and then flows to the nozzles 512 through the spray pipes 51, and finally is sprayed from the nozzles 512. The nozzles 512 are inclined upward, so that the seawater sprayed from the nozzles 512 washes away the mud near the side wall of the ballast tank 1, so as to reduce the friction between the side wall of the ballast tank 1 and the soft foundation seabed mud, thereby facilitating the floating operation of the ballast tank 1.

[0047] In addition, the plurality of groups of nozzles 512 are staggered from top to bottom, and the plurality of second valves 511 are controlled by the control system to be opened in sequence. The uppermost group of nozzles 512 is first opened to spray high-pressure seawater to flush the silt near the wall surface. After a period of time, the lower group of nozzles 512 is opened to spray high-pressure seawater to flush the silt near the wall surface. At this time, the pressure and flow rate of the upper group of nozzles 512 are reduced, and only the silt that is flushed away is prevented from accumulating near the wall surface. In this way, the silt is effectively pushed away by the nozzles 512, and the resistance during the upward floating of the ballast tank 1 is reduced.

[0048] The rest of the structure is the same as that of example 1.

[0049] Example 3, with reference to Figures 7-14 This is the third embodiment of the application, which is different from the second embodiment in that: The anti-blocking assembly comprises a support seat 4 fixed to the bottom of the seawater pipe 52, an annular filter screen 41 fixedly connected to the support seat 4, a main shaft 45 coaxial with the annular filter screen 41 rotatably arranged on the support seat 4, an impeller 46 fixedly installed at one end of the main shaft 45, a rotating disc 44 fixedly installed on the outer side of the main shaft 45, and a scraper 43 in the form of an arc structure fixedly installed on the bottom of the rotating disc 44 and abutting against the outer side of the annular filter screen 41.

[0050] A rotating seat 47 is fixedly installed on the bottom of the rotating disc 44 and located on the inner side of the annular filter screen 41. A rotating shaft 471 is rotatably connected to the rotating seat 47. A plurality of cleaning rollers 472 are fixedly installed on the outer side of the rotating shaft 471. A plurality of top blocks 473 are fixedly arranged on the outer side of each cleaning roller 472 in a circumferential direction. Each top block 473 can penetrate through the filter holes of the annular filter screen 41 and extend into the filter holes of the annular filter screen 41. The top block 473 extending into the filter holes is located on the front side of the scraper 43 in the rotating direction of the rotating disc 44.

[0051] A gear 474 is coaxially fixed to the outer side of the rotating shaft 471. A toothed ring 411 is fixedly installed on the top of the annular filter screen 41. The gear 474 is meshingly connected to the toothed ring 411.

[0052] A cleaning brush 42 is rotatably connected to the bottom of the rotating disc 44 and located on the outer side of the annular filter screen 41. The cleaning part of the cleaning brush 42 abuts against the outer side of the annular filter screen 41. The cleaning brush 42 is located on the front side of the top block 473 extending into the filter holes of the annular filter screen 41 in the rotating direction of the rotating disc 44.

[0053] Belt pulleys 48 are coaxially fixed to the top of the rotating shaft 471 and the cleaning brush 42. A belt 481 is drivingly connected between the two belt pulleys 48.

[0054] In use, when the seawater pump 55 and the seawater pipe 52 discharge part of the seawater and the slurry in the cavity 5, the stones and other larger particles in the soft foundation seabed are blocked outside the annular filter screen 41 by the annular filter screen 41 of the anti-blocking assembly. Due to the suction force inside the seawater pipe 52, the stones and other larger particles are difficult to separate from the annular filter screen 41, and after a long time of use, the annular filter screen 41 is easily blocked, so that when the seawater pump 55 sucks seawater, the pressure in the seawater pipe 52 is less than the pressure in the cavity 5, and then when the control system closes the third valve 521, the negative pressure in the corresponding cavity 5 does not reach the set value, so that the adsorption force at the bottom of the ballast tank 1 is reduced, and the whole floating box is easily slipped. Therefore, during the process of sucking seawater, the outside of the annular filter screen 41 also needs to be cleaned in real time to avoid the annular filter screen 41 being blocked, to ensure the adsorption force at the bottom of the ballast tank 1 and to avoid slipping. The specific process is as follows: when the seawater pump 55 sucks seawater in the cavity 5, the water flow in the seawater pipe 52 makes the water flow push the impeller 46 to rotate, so that the impeller 46 drives the main shaft 45 to rotate, and then the main shaft 45 drives the rotating disc 44 to rotate, and the rotating disc 44 drives the rotating seat 47 and the scraper 43 to rotate at the same time. The rotating seat 47 rotates around the axis of the main shaft 45, and at the same time, the rotating shaft 471 on the rotating seat 47 drives the gear 474 and the tooth ring 411 on the top of the annular filter screen 41 to mesh and drive, so that the rotating shaft 471 rotates around the axis of the rotating shaft 471 while revolving around the main shaft 45, and then the cleaning roller 472 rotates around the axis of the rotating shaft 471 while revolving around the main shaft 45. Because the transmission ratio of the gear 474 and the tooth ring 411 is consistent with the ratio of the top block 473 outside the cleaning roller 472 and the number of filter holes on each layer of the annular filter screen 41, the top block 473 outside the cleaning roller 472 extends into the filter holes of the annular filter screen 41 in turn, so that the top block 473 pushes the stones and other larger particles in the filter holes of the annular filter screen 41 outside the annular filter screen 41, and the top end of the top block 473 is flush with the outside of the annular filter screen 41, so that the stones and other larger particles can be completely pushed out of the filter holes outside the annular filter screen 41, and then the scraper 43 of the arc-shaped structure fixed at the bottom of the rotating disc 44 scrapes the stones and other larger particles pushed out by the top block 473, so as to realize the cleaning of the stones and other larger particles, avoid the stones and other larger particles from being accumulated and blocked in the annular filter screen 41 for a long time, ensure the cleanliness of the annular filter screen 41, avoid affecting the adsorption force between the ballast tank 1 and the soft foundation seabed, and then avoid slipping.

[0055] The stones and other larger particles are pushed out of the filter holes of the annular filter screen 41 by the top block 473, so as to avoid the end of the scraper 43 from colliding with the stones and other larger particles extending into the filter holes of the annular filter screen 41 when the scraper 43 rotates and scrapes, so as to avoid the scraper 43 being damaged, thereby improving the service life of the equipment.

[0056] In addition, the rotating shaft 471 rotates around the main shaft 45 while rotating around the axis of the rotating shaft 471, the rotating shaft 471 and the cleaning brush 42 are both rotationally connected to the bottom of the rotating disc 44, so that the rotating shaft 471 drives the corresponding belt pulley 48 to rotate, and then drives the other belt pulley 48 to rotate through the belt 481, so that the cleaning brush 42 rotates around the main shaft 45 while rotating around the axis of the cleaning brush 42, the rotating cleaning brush 42 sweeps the outer side of the annular filter screen 41 located in front of the scraper 43 and the cleaning roller 472, on the one hand, the rotating cleaning brush 42 can disturb the stone and other larger particles to loosen them for subsequent pushing out by the pushing block 473, on the other hand, before the scraper 43 scrapes off the impurities on the surface of the annular filter screen 41, the loose impurities attached to the surface of the annular filter screen 41 can be peeled off in advance, and at the same time, the shear force generated by the rotating cleaning brush 42 can also reduce the adhesion between the impurities and the annular filter screen 41, which helps to reduce the resistance when the scraper 43 cleans the impurities, improves the cleaning effect of the annular filter screen 41, and also helps to prolong the replacement cycle of the scraper 43 and reduce the equipment maintenance cost.

[0057] The remaining structure is the same as that of example 2.

[0058] Different technical features appearing in different embodiments can be combined to achieve beneficial effects. Based on the drawings, the specification and the claims, those skilled in the art should understand and implement other changed embodiments of the disclosed embodiments. In the claims, the term "comprising" does not exclude other devices or steps; the indefinite article "a" does not exclude a plurality; the terms "first", "second" are used to label names rather than to indicate any particular order. Any reference signs in the claims should not be understood as limiting the scope of protection. The functions of multiple parts appearing in the claims can be implemented by a single hardware or software module. The fact that certain technical features appear in different dependent claims does not mean that these technical features cannot be combined to achieve beneficial effects.

Claims

1. A soft foundation bottom-sitting suction caisson with anti-sliding function, characterized in that: The utility model provides a ballast tank (1) and pump cabin (2) fixed on the top of ballast tank (1), the bottom of ballast tank (1) is equipped with a plurality of cavities (5), the bottom of ballast tank (1) is fixed with a plurality of bottom end one -to -one respectively into a plurality of cavities (5) inside seawater pipe (52) through, the bottom end of every seawater pipe (52) is equipped with anti -blocking subassembly, every seawater pipe (52) one side is equipped with pressure sensor (522), every seawater pipe (52) top is through the top of ballast tank (1) and extends into pump cabin (2) inside, every seawater pipe (52) top is connected with third valve (521), the top of pump cabin (2) is fixed with water inlet pipe (53) and drain pipe (54) through, water inlet pipe (53) and drain pipe (54) one end are connected with fourth valve (531) and fifth valve (541) respectively, fourth valve (531) one end is connected with sixth valve (551) and seventh valve (552), fifth valve (541) one end is connected with eighth valve (553) and ninth valve (554), between sixth valve (551) and eighth valve (553) are connected with seawater pump (55), between seventh valve (552) and ninth valve (554) and a plurality of third valve (521) are connected.

2. The soft ground sitting type suction caisson with anti-sliding function according to claim 1, characterized in that: The top of pump cabin (2) is fixed with breather pipe (3) through, the first valve (31) is arranged on the breather pipe (3), and one end of the breather pipe (3) is communicated with a plurality of seawater pipes (52).

3. The soft ground seated suction caisson with anti-sliding function according to claim 1, characterized in that: The inlet of the water inlet pipe (53) is provided with a water inlet filter screen (532).

4. The soft ground seated suction caisson with anti-sliding function according to claim 1, characterized in that: A plurality of spray pipes (51) are connected between the seventh valve (552) and the ninth valve (554), and a second valve (511) is arranged on each spray pipe (51).

5. The soft ground seated suction caisson with anti-sliding function according to claim 4, characterized in that: A plurality of groups of the nozzles (512) are staggered from top to bottom, and each group of the nozzles (512) is inclined upward.

6. The soft ground seated suction caisson with anti-sliding function according to claim 1, characterized in that: The anti-blocking assembly comprises a support seat (4) fixed to the bottom of the seawater pipe (52), the support seat (4) is fixedly connected with an annular filter screen (41), the support seat (4) is rotatably provided with a main shaft (45) coaxial with the annular filter screen (41), one end of the main shaft (45) is fixedly installed with an impeller (46), the outer side of the main shaft (45) is fixedly installed with a turntable (44), and the bottom of the turntable (44) is installed with a scraper (43) with an arc structure abutting against the outer side of the annular filter screen (41).

7. The soft ground seated suction caisson with anti-sliding function according to claim 6, characterized in that: The bottom of the rotating disc (44) is fixedly installed with a rotating seat (47) inside the annular filter screen (41), the rotating seat (47) is rotationally connected with a rotating shaft (471) inside, a plurality of cleaning rollers (472) are fixedly installed outside the rotating shaft (471), a plurality of top blocks (473) are fixedly arranged in the circumferential direction outside each cleaning roller (472), each top block (473) can penetrate the filter hole of the annular filter screen (41), and the top block (473) extending into the filter hole of the annular filter screen (41) is located at the front side of the scraper (43) along the rotating direction of the rotating disc (44).

8. The soft ground seated suction caisson with anti-sliding function according to claim 7, characterized in that: A gear (474) is fixedly installed outside the rotating shaft (471) in a coaxial manner, a gear ring (411) is fixedly installed at the top of the annular filter screen (41), and the gear (474) is meshingly connected with the gear ring (411).

9. The soft ground seated suction caisson with anti-sliding function according to claim 7, characterized in that: The bottom of the rotating disc (44) is rotationally connected with a cleaning brush (42) outside the annular filter screen (41), the cleaning part of the cleaning brush (42) abuts against the outside of the annular filter screen (41), and the cleaning brush (42) is located at the front side of the top block (473) extending into the filter hole of the annular filter screen (41) along the rotating direction of the rotating disc (44).

10. The soft ground seated suction caisson with anti-sliding function according to claim 9, characterized in that: Belt pulleys (48) are fixedly installed at the top of the rotating shaft (471) and the cleaning brush (42) in a coaxial manner, and a belt (481) is transmissionally connected between the two belt pulleys (48).

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