Anti-blocking pile shoe high-pressure nozzle

Abstract

The present application relates to the field of pile shoes, and discloses a pile shoe high-pressure nozzle capable of preventing blockage, wherein the push sleeve and the sealing plate are filled in the drain port, so that the drain port is blocked by the push sleeve and the sealing plate in normal state, the gravel and mud are prevented from entering the drain port, the flow channel of seawater is prevented from being blocked, and the subsequent work is prevented from being affected; when the pile needs to be pulled out, the seawater flows from the pile column to the pile shoe, and then to the drain port; in this process, the seawater first impacts the main screw to make it rotate, the main screw drives the rotating disc to rotate, the rotating disc pushes the push sleeve outward from the opening of the drain port, until the moving slider enters the rotating sliding groove, so that the sealing plate and the connecting piece are moved to the outer side of the drain port; in this way, the seawater in the pile shoe can flow out from the gap between the connecting pieces through the push sleeve, the cavity formed by pulling out the pile column is filled, and the pulling-out work is ensured to be smoothly performed; when the pile needs to be lowered again, the sealing plate and the push sleeve are adjusted to reset, and the drain port is closed.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pile shoes, in particular to a pile shoe high-pressure nozzle with anti-blocking function. BACKGROUND

[0002] The self-elevating platform is a common device for offshore operations, which can drill, repair, test oil and test production when exploiting offshore oil. When the self-elevating platform is in operation, a very deep fixed pile (including pile column and pile shoe) needs to be driven into the seabed to ensure the stability of the self-elevating platform. However, after the operation is completed, the pile column needs to be removed. During the process of pulling out the pile column, the cavity formed in the pile hole will cause strong suction in the pile hole, which will hinder the removal of the fixed pile. At this time, the high-pressure nozzle on the pile shoe needs to be used to spray seawater to supplement the cavity and offset the pressure.

[0003] Due to the complex environment in the pile hole, there are a large number of gravel and mud blocks in the pile hole, which can easily block the high-pressure nozzle on the pile shoe, affect the flow of seawater, and cause the pile pulling work to be not smooth. Therefore, the present application provides a pile shoe high-pressure nozzle with anti-blocking function to solve the problem. SUMMARY

[0004] 1. Technical problem to be solved

[0005] In view of the problems in the prior art, the present application aims to provide a pile shoe high-pressure nozzle with anti-blocking function. In this scheme, the push sleeve and the sealing plate are filled in the drain port. Under normal circumstances, the drain port is blocked by the push sleeve and the sealing plate, which prevents gravel and mud blocks from entering the drain port and blocking the flow channel of seawater, thereby affecting the subsequent work. When the pile needs to be pulled out, seawater flows from the pile column to the pile shoe, and then to the drain port. During this process, seawater first impacts the main screw to make it rotate. The main screw drives the rotating disc to rotate. The rotating disc rotates and moves the sliding groove and the sliding block to push the push sleeve outward from the opening of the drain port. When the sliding block enters the rotating sliding groove, the sealing plate and the connecting piece move to the outside of the drain port. In this way, seawater in the pile shoe can flow out from the gap between the connecting pieces through the push sleeve (during this process, the sprayed seawater can avoid a large number of gravel and mud blocks near the opening of the drain port). The cavity formed by pulling out the pile column is filled, which ensures the smooth progress of the pile pulling work. When the pile needs to be pulled out again, the sealing plate and the push sleeve are adjusted to reset the drain port.

[0006] 2. Technical scheme

[0007] To solve the above problems, the present application adopts the following technical scheme.

[0008] The utility model provides an anti -blocking type pile shoe high pressure nozzle, including stake, the bottom of stake is equipped with stake shoe, the surface of stake shoe is equipped with drainage port, is provided with control mechanism in stake and stake shoe, control mechanism includes the main screw that rotates and connects in the inside of stake, and the main screw extends to stake shoe, and the outside of main screw is fixedly connected with rotating disc, and the outside of rotating disc is equipped with moving sliding slot and rotating sliding slot, and moving sliding slot adopts the circular array distribution, and single moving sliding slot adopts spiral setting, and one end of moving sliding slot communicates with rotating sliding slot, and the height difference of both ends of moving sliding slot is same with the length of connecting piece, can ensure that push -on set is pushed to the in -place, let the clearance between connecting piece be completely exposed to drainage port, and rotating sliding slot is annular, and control mechanism still includes the push -on set that slides and connects in drainage port, and one end of push -on set is equipped with the circular array arrangement of connecting piece, and the other end of push -on set extends to stake shoe, and the other end of connecting piece is fixedly connected with sealing plate, and the surface of sealing plate is flush with the outside opening of drainage port, and the outside of the part of push -on set in stake shoe is equipped with the accommodation groove, and the other end of accommodation groove is fixedly connected with compression spring, and the other end of compression spring is fixedly connected with moving slider, and moving slider extends to one end of moving sliding slot, by filling push -on set and sealing plate in drainage port, so normal drainage port is blocked up by push -on set and sealing plate, avoid the mud and stone into the drainage port, block the flow channel of seawater, influence the follow -up work, and when need to pull out stake, seawater flows from stake to stake shoe, and then flows to drainage port, in this process, seawater first impacts main screw and makes it rotate, and main screw drives rotating disc to rotate, and rotating disc rotates and pushes push -on set to the opening of drainage port through the cooperation of moving sliding slot and moving slider, until moving slider enters rotating sliding slot, make sealing plate and connecting piece move to the outside of drainage port, in this way, the seawater in stake shoe can flow out from the gap between connecting piece (in this process, the sprayed seawater can avoid a large number of mud and stone to approach the opening of drainage port), fill the cavity formed by pulling out stake, guarantee the smooth operation of pulling out stake, need to stake again, adjust sealing plate and push -on set reset, close drainage port.

[0009] Further, the circular array distribution of the drainage port is on the upper and lower surfaces of the stake shoe, and each stake shoe is provided with a push-on set, and the rotating disc is provided with two groups corresponding to the upper and lower push-on sets, so that the upper and lower surfaces of the stake shoe can spray seawater when pulling out the stake, making the pressure at the bottom of the stake more coordinated and stable, and also avoiding the opening of the drainage port being blocked by foreign matter, and the sealing plate being unable to push it away, and the seawater supplementing work being smoothly performed.

[0010] Further, the surface of the rotating disc is provided with weight reduction holes, which not only reduce the weight of the rotating disc, making it easier to rotate with the main screw and reducing the rotation resistance of the main screw, but also facilitate the flow of seawater in the stake and the stake shoe, making the overall operation smoother and more stable.

[0011] Further, the mobile slider and the receiving groove are provided with a damping member, so that in the case that the opening of part of the drain port is blocked by foreign matter, the sealing plate and the pushing sleeve cannot move, the rotating disc rotates, the mobile slider outside the pushing sleeve of this part is pushed out of the mobile sliding groove, and the outer wall of the rotating disc pushes it into the receiving groove. When the next mobile sliding groove is connected to the mobile slider, the compression spring pushes the mobile slider to reset slowly under the action of the damping member, and the mobile sliding groove will quickly pass the mobile slider. In this way, the mobile slider cannot return to the mobile sliding groove in time and will be stored in the receiving groove, which does not affect the rotation of the rotating disc and the movement of the pushing sleeve and the sealing plate in other non-obstacle areas. To a certain extent, the stability of the device is improved.

[0012] Further, the pushing sleeve is provided with a cleaning mechanism, which includes a mounting member rotatably connected to one end of the pushing sleeve inside the spudcan. The mounting member is annular, and the inner side of the mounting member is fixedly connected with a pushing screw. The other end of the pushing screw is rotatably connected with the sealing plate. In this way, when seawater flows through the pushing sleeve, it will impact the pushing screw, thereby driving the pushing screw to rotate. The rotating pushing screw will push some unexpected stones and mud into the pushing sleeve, preventing the pushing sleeve from being blocked and affecting the flow of seawater. At the same time, the rotating pushing screw has a cleaning effect on the inner cavity of the pushing sleeve, avoiding the accumulation of dirt on the inner wall of the pushing sleeve and gradually blocking the pushing sleeve.

[0013] Further, one end of the pushing sleeve inside the drain port is provided with a buffer sliding groove, and the connecting member is slidingly connected in the buffer sliding groove. In this way, the sealing plate and the connecting member can rotate at one end of the pushing sleeve. In this way, when larger stones and mud enter the pushing sleeve (part of which is stuck in the pushing screw, and part of which is left in the gap of the connecting member), the pushing screw can drive the stones and mud to push the connecting member and the sealing plate to rotate together, without affecting the normal operation of the equipment. Also, it reduces the damage to the pushing screw and the connecting member during this process.

[0014] Further, the surface of the rotating disc and the mounting piece are provided with two kinds of annular distributed teeth with different sizes, and the two kinds of teeth correspond to each other, the distance from the mounting piece to the rotating disc is the same as the height difference of the two ends of the moving sliding groove, the rotating disc and the mounting piece are linked together, so that the rotating disc can assist the rotation of the pushing screw, and the pushing screw has an additional power, so that the pushing force of the pushing screw on the gravel and mud is stronger, when the local pushing sleeve is partially blocked and the self-flowing performance is weakened, the pushing force of the pushing screw is also weakened, and the auxiliary power of the pushing screw can help the pushing screw to restore the pushing force, so that the pushing screw can push and clean the partial blockage, and the distance between the mounting piece and the rotating disc is kept, and they do not directly contact, so that only the pushing sleeve that is pushed open can drive the mounting piece to contact the rotating disc, so that the pushing screw enjoys the power improved by the main screw, and the pushing sleeve that cannot be pushed open cannot drive the mounting piece to move, so that the mounting piece and the pushing screw do not contact, and the unnecessary loss of equipment power is reduced.

[0015] Further, the opening of the upper drainage port extends outward in the shape of a crater, and the top surface of the lower sealing plate is designed to be high in the middle and low around, so that the gravel and mud pushed out by the pushing screw can slide to the outside (around) of the drainage port, reducing the possibility of the gravel and mud entering the pushing sleeve again, and making the cleaning work more smooth.

[0016] Further, the upper and lower mounting pieces are combined together, and the inner side of the pile bottom shoe is provided with a stabilizing mechanism, the stabilizing mechanism comprises a movable cavity opened in the inner wall of the pile bottom shoe, the bottom end of the movable cavity is communicated with the inner cavity of the pile bottom shoe, a control block is slidably connected in the movable cavity, an annular slot is opened on the outer side of the control block, the material density of the control block is less than that of water, a stabilizing spring is fixedly connected to the top of the control block, and the stabilizing mechanism further comprises a clamping piece clamped on the outer side of the two corresponding mounting pieces, a pushing rod penetrating into the movable cavity is fixedly connected to the outer side of the clamping piece, and a pushing spring is arranged between the clamping piece and the inner wall of the pile bottom shoe, the control mechanism and the cleaning mechanism are fixed by the stabilizing mechanism, so that in the process of piling and pile driving, the clamping piece clamps the upper and lower corresponding mounting pieces together, the mounting piece is fixed, and then the pushing screw and the rotating disc are also constrained, reducing the activity and wear of each part in the process of piling and pile driving, when seawater needs to be supplemented, the seawater enters the pile bottom shoe and then enters the movable cavity to lift the control block, so that the slot is connected with the pushing rod, the clamping piece is not restricted, the clamping piece cannot constrain the mounting piece, and the equipment is normally started.

[0017] Further, the clamping surface of the clamping piece and the mounting piece is designed as an inclined surface, so that the clamping piece can gather the mounting pieces together.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present application are:

[0020] 1、This scheme is filled with push set and sealing plate in the drainage port, so the drainage port will be blocked by push set and sealing plate in normal state, avoid the debris into the drainage port, block the flow channel of seawater, affect the follow-up work, and need to pull the pile, seawater flows from the pile column to the pile shoe, and then to the drainage port, in this process, seawater first impacts the main screw to make it rotate, the main screw drives the rotating disc to rotate, the rotating disc rotates through the cooperation of the moving sliding groove and the moving sliding block, and the push set is pushed out of the opening of the drainage port, until the moving sliding block enters the rotating sliding groove, so that the sealing plate and the connecting piece move to the outside of the drainage port, so that the seawater in the pile shoe can flow out from the gap between the connecting pieces through the push set (in this process, the sprayed seawater can avoid a large amount of debris near the opening of the drainage port), fill the cavity formed by pulling out the pile, and ensure the smooth progress of the pile pulling work. When it is needed to pile again, adjust the sealing plate and push set to reset and close the drainage port.

[0021] 2、The drainage port is arranged in an array around the upper and lower surfaces of the pile shoe, and each pile shoe is provided with a push set. The rotating disc is provided with two groups corresponding to the upper and lower push sets, so that seawater can be sprayed on the upper and lower surfaces of the pile shoe when pulling the pile, so that the pressure at the bottom of the pile column is more coordinated and stable, and the opening of the drainage port is also avoided from being blocked by foreign matter, so that the sealing plate cannot be pushed away, and the seawater supplement work runs smoothly.

[0022] 3、The surface of the rotating disc is provided with a weight reduction hole, which not only reduces the weight of the rotating disc, but also makes it easier for the rotating disc to rotate with the main screw, reduces the rotation resistance of the main screw, and facilitates the flow of seawater in the pile column and the pile shoe, so that the assembled whole runs more smoothly and stably.

[0023] 4、The moving sliding block and the receiving groove are provided with a damping piece, so that in the case that part of the opening of the drainage port is blocked by foreign matter and the sealing plate and the push set cannot move, the rotating disc rotates, the moving sliding block outside the push set that cannot move is pushed out of the moving sliding groove, and the outer wall of the rotating disc is pressed into the receiving groove. When the next moving sliding groove is connected with the moving sliding block, the compression spring pushes the moving sliding block to reset slowly under the action of the damping piece, and the moving sliding groove quickly passes through the moving sliding block. In this way, the moving sliding block cannot return to the moving sliding groove in time and will be always received in the receiving groove, which does not affect the rotation of the rotating disc and the movement of the push set and the sealing plate in other obstacle-free areas, and improves the stability to a certain extent.

[0024] 5、The cleaning mechanism is arranged in the pushing sleeve, and the cleaning mechanism comprises a mounting member rotatably connected to one end of the pushing sleeve in the pile bottom shoe. The mounting member is annular, and a pushing screw is fixedly connected to the inner side of the mounting member. The other end of the pushing screw is rotatably connected to the sealing plate. When seawater flows through the pushing sleeve, the pushing screw is impacted, thereby driving the pushing screw to rotate. The rotating pushing screw pushes out the gravel and mud accidentally entering the pushing sleeve, prevents the pushing sleeve from being blocked, and affects the flow of seawater. Meanwhile, the rotating pushing screw has a cleaning effect on the inner cavity of the pushing sleeve, avoids dirt accumulation on the inner wall of the pushing sleeve, and gradually blocks the pushing sleeve.

[0025] 6、The one end of the pushing sleeve arranged in the drain port is provided with a buffer chute, and the connecting member is slidingly connected in the buffer chute. Thus, the sealing plate and the connecting member can rotate at one end of the pushing sleeve. When larger gravel and mud enter the pushing sleeve (part of which is clamped in the pushing screw, and part of which is left in the gap of the connecting member), the pushing screw can drive the gravel and mud to rotate the connecting member and the sealing plate together, without affecting the normal operation of the equipment, and reducing the damage of the pushing screw and the connecting member in the process.

[0026] 7、The rotating disc and the mounting member are linked together. Thus, the rotating disc can assist the rotation of the pushing screw, add a layer of power to the pushing screw, make the pushing force of the pushing screw stronger, and weaken the pushing force of the pushing screw when the pushing sleeve is partially blocked and the self-flowing performance is weakened. The assistance of the pushing screw can help the pushing screw to restore the pushing force, so that the pushing screw can push and clean the partial blockage, avoid continuous accumulation and blockage, and keep the distance between the mounting member and the rotating disc, without direct contact. Thus, only the pushing sleeve that is pushed open can drive the mounting member to contact the rotating disc, so that the pushing screw enjoys the power of the main screw. The pushing sleeve that cannot be pushed open cannot drive the mounting member to move, and the mounting member and the pushing screw do not contact. Thus, the unnecessary loss of the power of the equipment is reduced.

[0027] 8、The opening of the upper drain port extends outward in the shape of a crater, and the top surface of the lower sealing plate is designed to be high in the middle and low at the periphery. Thus, the gravel and mud pushed out by the pushing screw can slide to the outside (periphery) of the drain port, reduce the possibility of the gravel and mud entering the pushing sleeve again, and make the cleaning work more smooth.

[0028] 9、The control mechanism and the cleaning mechanism are fixed by the re-stabilizing mechanism. Thus, when the pile is driven and lowered, the clamping members clamp the corresponding mounting members together, the mounting members are fixed, and then the pushing screw and the rotating disc are constrained, reducing the activity and wear of each component during the process of driving and lowering the pile. When seawater needs to be supplemented, the seawater enters the pile bottom shoe, and then enters the movable cavity to lift the control block, so that the slot is butted with the pushing rod, the clamping members are no longer restricted, the clamping members cannot constrain the mounting members, and the equipment is normally opened. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a diagram showing the upper part of the pile shoe of the present application;

[0030] Figure 2 is a diagram showing the lower part of the pile shoe of the present application;

[0031] Figure 3 is a diagram showing the disassembled state of the present application;

[0032] Figure 4 is a diagram showing the internal part of the pile and the pile shoe of the present application;

[0033] Figure 5 is a diagram showing the push sleeve of the present application;

[0034] Figure 6 is a diagram showing the Figure 4 partial enlarged view of the present application;

[0035] Figure 7 is a diagram showing the constraint state of the stabilizing mechanism of the present application;

[0036] Figure 8 is a diagram showing the unlocking state of the stabilizing mechanism of the present application;

[0037] Figure 9 is a diagram showing the open state of the push sleeve of the present application;

[0038] Figure 10 is a diagram showing the cooperation state of the moving slider and the moving sliding groove of the present application;

[0039] Figure 11 is a diagram showing the storage state of the moving slider of the present application.

[0040] Explanation of the reference numerals in the drawings:

[0041] 1, pile; 2, pile shoe; 3, drain port; 4, control mechanism; 41, main screw; 42, rotating disc; 43, moving sliding groove; 44, rotating sliding groove; 45, push sleeve; 46, connecting piece; 47, sealing plate; 48, storage groove; 49, compression spring; 410, moving slider; 5, cleaning mechanism; 51, mounting piece; 52, push screw; 53, buffer sliding groove; 6, stabilizing mechanism; 61, movable cavity; 62, control block; 63, clamping piece; 64, push rod. DETAILED DESCRIPTION

[0042] The embodiments will be described clearly and completely with reference to the disclosed drawings, so that the purposes, technical solutions and beneficial effects of the embodiments of the present disclosure are more apparent. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present disclosure.

[0043] Unless otherwise defined, technical terms or scientific terms used in the present disclosure should be understood as the conventional meanings thereof by those skilled in the art to which the present disclosure belongs. The terms "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are used to distinguish different constituent parts. The terms "comprise", "have" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. "Up", "down", "inner", "outer" and the like are only used to represent relative positional relationships, which may change accordingly when the absolute positions of the described objects change.

[0044] Embodiment:

[0045] Please refer to Figures 1 to 11 A kind of anti-blocking type pile shoe high-pressure nozzle, including pile 1, the bottom of pile 1 is equipped with pile shoe 2, the surface of pile shoe 2 is equipped with drain 3, control mechanism 4 is arranged in pile 1 and pile shoe 2, control mechanism 4 includes main screw 41 rotationally connected in the inside of pile 1, main screw 41 extends into pile shoe 2, the outside of main screw 41 is fixedly connected with rotating disc 42, rotating disc 42 is equipped with moving sliding slot 43 and rotating sliding slot 44 on the outside, moving sliding slot 43 is distributed in circumferential array, and single moving sliding slot 43 is arranged spirally, one end of moving sliding slot 43 is communicated with rotating sliding slot 44, the height difference of both ends of moving sliding slot 43 is same with the length of connecting piece 46, it is guaranteed that push set 45 can be pushed to position, the gap between connecting piece 46 is completely exposed drain 3, rotating sliding slot 44 is annular, control mechanism 4 further includes push set 45 slidingly connected in drain 3, one end of push set 45 is equipped with the connecting piece 46 of circumferential array arrangement, the other end of push set 45 extends into pile shoe 2, the other end of connecting piece 46 is fixedly connected with sealing plate 47, the surface of sealing plate 47 is flush with the outside opening of drain 3, the outside of the part of push set 45 in pile shoe 2 is equipped with storage groove 48, the other end of storage groove 48 is fixedly connected with compression spring 49, the other end of compression spring 49 is fixedly connected with moving slider 410, moving slider 410 extends to one end of moving sliding slot 43;

[0046] By filling the push sleeve 45 and the sealing plate 47 in the drain port 3, the drain port 3 is blocked by the push sleeve 45 and the sealing plate 47 in normal state, avoiding the debris into the drain port 3, blocking the flow channel of seawater, and when the pile is pulled out, the seawater flows from the pile 1 to the pile bottom shoe 2, and then to the drain port 3. In this process, the seawater first impacts the main screw 41 to make it rotate, the main screw 41 drives the rotating disc 42 to rotate, the rotating disc 42 rotates to make the moving slider 410 start to slide in the moving sliding groove 43, and the spiral moving sliding groove 43 provides a thrust to the moving slider 410. Thus, the moving slider 410 pushes the push sleeve 45 outwards to the opening of the drain port 3, until the moving slider 410 enters the rotating sliding groove 44 (the moving slider 410 in the rotating sliding groove 44 will slide in the rotating sliding groove 44, and will not be affected by the rotation of the rotating disc 42), so that the sealing plate 47 and the connecting piece 46 move to the outside of the drain port 3, as shown in Figure 9 , so that the seawater in the pile bottom shoe 2 can flow out from the gap between the connecting pieces 46 through the push sleeve 45 (in this process, the sprayed seawater can avoid a large amount of debris near the opening of the drain port 3), filling the cavity formed by pulling out the pile 1, and when the pile is pulled out again, the position of the rotating disc 42 is adjusted by the main screw 41, the sealing plate 47 and the push sleeve 45 are reset, and the drain port 3 is closed.

[0047] The top of the main screw 41 is provided with a position mark of the intersection point of the moving sliding groove 43 and the rotating sliding groove 44, and the top of the pile 1 is provided with a position mark of the moving slider 410; the drain ports 3 are arranged in a circular array on the upper and lower surfaces of the pile bottom shoe 2, and each pile bottom shoe 2 is provided with a push sleeve 45, and the rotating disc 42 is provided with two groups corresponding to the upper and lower push sleeves 45, so that the upper and lower surfaces of the pile bottom shoe 2 can be sprayed with seawater when the pile is pulled out, so that the pressure at the bottom of the pile 1 is more coordinated and stable, and at the same time, the opening of the drain port 3 is prevented from being blocked by foreign matter, the sealing plate 47 cannot be pushed away, and the seawater supplementing operation is smoothly carried out.

[0048] The surface of the rotating disc 42 is provided with weight-reducing holes, so as to not only reduce the mass of the rotating disc 42 and make it easier to rotate with the main screw rod 41, reduce the rotating resistance of the main screw rod 41, but also facilitate the flow of seawater in the pile 1 and the pile shoe 2, so that the whole assembly runs more smoothly and stably. A damping member is arranged between the moving slider 410 and the storage groove 48, so that in the case that the opening of part of the drainage port 3 is blocked by foreign matter and the sealing plate 47 and the pushing sleeve 45 cannot move, the rotating disc 42 rotates, the moving slider 410 outside the pushing sleeve 45 is pushed out of the moving sliding groove 43, and the outer wall of the rotating disc 42 pushes it into the storage groove 48. When the next moving sliding groove 43 is connected with the moving slider 410, the compression spring 49 slowly pushes the moving slider 410 back to the original position under the action of the damping member, and the moving sliding groove 43 quickly passes the moving slider 410. In this way, the moving slider 410 cannot return to the moving sliding groove 43 in time and is always stored in the storage groove 48, as shown in Figures 10-11 , which does not affect the rotation of the rotating disc 42 and the movement of the pushing sleeve 45 and the sealing plate 47 in other obstacle-free areas, and improves the stability to a certain extent.

[0049] Please refer to Figures 5 to 9 , the pushing sleeve 45 is provided with a cleaning mechanism 5, which includes a mounting member 51 rotatably connected to one end of the pushing sleeve 45 in the pile shoe 2, the mounting member 51 is annular, the inner side of the mounting member 51 is fixedly connected with a pushing screw rod 52, the other end of the pushing screw rod 52 is rotatably connected with the sealing plate 47. In this way, when seawater flows through the pushing sleeve 45, it will impact the pushing screw rod 52, thereby driving the pushing screw rod 52 to rotate, and the rotating pushing screw rod 52 will push some gravel and mud accidentally entering the pushing sleeve 45 out, preventing the pushing sleeve 45 from being blocked and affecting the flow of seawater. At the same time, the rotating pushing screw rod 52 has a cleaning effect on the inner cavity of the pushing sleeve 45, avoiding the accumulation of dirt on the inner wall of the pushing sleeve 45 and gradually blocking the pushing sleeve 45. One end of the pushing sleeve 45 in the drainage port 3 is provided with a buffer sliding groove 53, and the connecting member 46 is slidingly connected in the buffer sliding groove 53. In this way, the sealing plate 47 and the connecting member 46 can rotate at one end of the pushing sleeve 45. In this way, when larger gravel and mud enter the pushing sleeve 45 (part of which is stuck in the pushing screw rod 52 and part of which is left in the gap of the connecting member 46), the pushing screw rod 52 can drive the gravel and mud to rotate the connecting member 46 and the sealing plate 47 together, without affecting the normal operation of the equipment, and reducing the damage to the pushing screw rod 52 and the connecting member 46 in the process.

[0050] The surface of the rotating disc 42 and the mounting piece 51 are provided with two kinds of annular distributed teeth with different sizes, and the two kinds of teeth correspond to each other. The distance between the mounting piece 51 and the rotating disc 42 is the same as the height difference of the two ends of the moving chute 43. By linking the rotating disc 42 and the mounting piece 51, the rotating disc 42 can assist the rotation of the pushing screw 52, and add a layer of power to it, so that the pushing force of the pushing screw 52 on the gravel and mud is stronger. When the local part of the pushing sleeve 45 is blocked and the self-flowing performance is weakened, the pushing force of the pushing screw 52 is also weakened. The reflected power of the pushing screw 52 can help the pushing screw 52 restore the pushing force, so that it can push the local blockage and avoid the continuous accumulation of the blockage. The distance between the mounting piece 51 and the rotating disc 42 is maintained, and they do not directly contact each other. Only the pushing sleeve 45 that is pushed open can drive the mounting piece 51 to contact the rotating disc 42, so that the pushing screw 52 can enjoy the power improved by the main screw 41. The pushing sleeve 45 that cannot be pushed open cannot drive the mounting piece 51 to move, and the mounting piece 51 and the pushing screw 52 do not contact each other. In this way, unnecessary loss of equipment power is reduced. The opening of the upper drainage port 3 extends outward in the shape of a crater, and the top surface of the lower sealing plate 47 is designed to be high in the middle and low on the four sides. In this way, the gravel and mud pushed out by the pushing screw 52 can slide to the outside (four sides) of the drainage port 3, reducing the possibility of these gravel and mud entering the pushing sleeve 45 again, and making the cleaning work more smooth.

[0051] Please refer to Figures 8 to 9 The upper and lower mounting pieces 51 are combined together, and the inner side of the pile shoe 2 is provided with a stabilizing mechanism 6. The stabilizing mechanism 6 includes a movable cavity 61 opened in the wall body of the pile shoe 2, the bottom end of the movable cavity 61 is communicated with the inner cavity of the pile shoe 2, and a control block 62 is slidably connected in the movable cavity 61. The outer side of the control block 62 is provided with an annular slot, the material density of the control block 62 is less than that of water, and the top of the control block 62 is fixedly connected with a stabilizing spring. The stabilizing mechanism 6 further includes a clamping piece 63 clamped on the outer side of the two corresponding mounting pieces 51, the outer side of the clamping piece 63 is fixedly connected with a pushing rod 64 penetrating into the movable cavity 61, and a pushing spring is arranged between the clamping piece 63 and the inner wall of the pile shoe 2. The control mechanism 4 and the cleaning mechanism 5 are fixed by the stabilizing mechanism 6. In this way, during piling and pile driving, the clamping piece 63 clamps the upper and lower corresponding mounting pieces 51 together, the other end of the clamping piece 63 is pressed by the control block 62, as shown in Figure 7 , the mounting piece 51 is fixed, so that the pushing screw 52 and the rotating disc 42 are also constrained, reducing the activity and wear of each part during piling and pile driving. When seawater needs to be supplemented, the seawater enters the pile shoe 2, then enters the movable cavity 61, and lifts the control block 62 by buoyancy, so that the slot is butt jointed with the pushing rod 64, and the clamping piece 63 is limited, as shown in Figure 8As shown, the clamping member 63 can no longer constrain the mounting member 51, and the force exerted by the rotating disc 42 on the pushing sleeve 45 pushes the pushing sleeve 45 and the mounting member 51 apart, and the device is normally opened.

[0052] The clamping surface of the clamping member 63 and the mounting member 51 is provided as an inclined surface, which facilitates the clamping member 63 to gather the mounting member 51 together.

[0053] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art, according to the technical solution and the improvement concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A pile shoe high-pressure nozzle of anti-blocking type, comprising a pile column (1), the bottom of the pile column (1) is equipped with a pile bottom shoe (2), the surface of the pile bottom shoe (2) is provided with a drainage port (3), characterized in that: The pile (1) and the pile shoe (2) are provided with a control mechanism (4), the control mechanism (4) comprises a main screw (41) rotatably connected in the pile (1), the main screw (41) extends into the pile shoe (2), the outer side of the main screw (41) is fixedly connected with a rotating disc (42), the outer side of the rotating disc (42) is provided with a moving chute (43) and a rotating chute (44), the moving chute (43) is distributed in a circumferential array, and a single moving chute (43) is spirally arranged, one end of the moving chute (43) is communicated with the rotating chute (44), the height difference between the two ends of the moving chute (43) is the same as the length of the connecting piece (46), the rotating chute (44) is annular, the control mechanism (4) further comprises a pushing sleeve (45) slidably connected in the drain port (3), one end of the pushing sleeve (45) is provided with a circumferential array of connecting pieces (46), the gap between the connecting pieces (46) completely exposes the drain port (3), the other end of the pushing sleeve (45) extends into the pile shoe (2), the seawater in the pile shoe (2) flows out from the gap between the connecting pieces (46) through the pushing sleeve (45), the other end of the connecting piece (46) is fixedly connected with a sealing plate (47), the surface of the sealing plate (47) is flush with the outer opening of the drain port (3), the outer side of the part of the pushing sleeve (45) in the pile shoe (2) is provided with a receiving groove (48), the other end of the receiving groove (48) is fixedly connected with a compression spring (49), the other end of the compression spring (49) is fixedly connected with a moving block (410), the moving block (410) extends to one end of the moving chute (43); The drain port (3) is circumferentially arrayed on the upper and lower surfaces of the pile shoe (2), and each pile shoe (2) is provided with a pushing sleeve (45), the rotating disc (42) is provided with two groups corresponding to the upper and lower pushing sleeves (45).

2. The anti-blocking pile shoe high-pressure nozzle according to claim 1, characterized in that: A damping piece is arranged between the moving block (410) and the receiving groove (48).

3. The anti-blocking pile shoe high pressure nozzle according to claim 1, characterized in that: The pushing sleeve (45) is provided with a cleaning mechanism (5), the cleaning mechanism (5) comprises a mounting piece (51) rotatably connected to one end of the pushing sleeve (45) in the pile shoe (2), the mounting piece (51) is annular, the inner side of the mounting piece (51) is fixedly connected with a pushing screw (52), the other end of the pushing screw (52) is rotatably connected with the sealing plate (47).

4. The anti-blocking pile shoe high pressure nozzle according to claim 3, characterized in that: One end of the pushing sleeve (45) in the drain port (3) is provided with a buffer chute (53), the connecting piece (46) is slidably connected in the buffer chute (53).

5. The anti-blocking pile shoe high pressure nozzle according to claim 3, characterized in that: The surfaces of the rotating disc (42) and the mounting piece (51) are provided with two kinds of annular distributed teeth with different sizes, and the two kinds of teeth correspond to each other.

6. The anti-blocking pile shoe high pressure nozzle according to claim 3, characterized in that: The distance from the mounting piece (51) to the rotating disc (42) is the same as the height difference between the two ends of the moving chute (43).

7. The anti-blocking pile shoe high pressure nozzle according to claim 3, characterized in that: The opening of the upper drain port (3) extends outward in a crater shape, and the top surface of the lower sealing plate (47) is designed with a high middle and a low periphery.

8. The anti-blocking pile shoe high pressure nozzle according to claim 3, characterized in that: The upper and lower mounting pieces (51) are combined together, the inner side of the pile shoe (2) is provided with a stabilizing mechanism (6), the stabilizing mechanism (6) comprises a movable cavity (61) formed in the wall body of the pile shoe (2), the bottom end of the movable cavity (61) is communicated with the inner cavity of the pile shoe (2), a control block (62) is slidably connected in the movable cavity (61), an annular notch is formed in the outer side of the control block (62), the material density of the control block (62) is less than that of water, a stabilizing spring is fixedly connected to the top of the control block (62), the stabilizing mechanism (6) further comprises a clamping piece (63) clamped to the outer sides of the two corresponding mounting pieces (51), the outer side of the clamping piece (63) is fixedly connected with a pushing rod (64) penetrating into the movable cavity (61), and a pushing spring is arranged between the clamping piece (63) and the inner wall of the pile shoe (2).

9. The anti-blocking pile shoe high pressure nozzle according to claim 8, characterized in that: The clamping surface of the clamping piece (63) and the mounting piece (51) is formed as an inclined surface.

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