Waterway overwater cast-in-situ bored pile construction device and using method thereof

Abstract

The invention relates to the technical field of building construction, and discloses an overwater cast-in-situ bored pile construction device for a navigation channel and a using method thereof.The overwater cast-in-situ bored pile construction device comprises a small arm, an enclosure mechanism, a large arm, a rotator, a floating plate and a driving main body. Therefore, the enclosure pipe can be better fixed and hoisted when being inserted, the enclosure pipe is driven to rotate downwards to be inserted into underwater soil through rotation and downward force of the rotator on the fixing block, and the problem that sealing is incomplete due to the fact that the enclosure pipe is inserted separately is solved. The guide plates obliquely rotate towards the central axis of the inner enclosure pipe, and the guide plates generate elastic force on the obstacles through the elastic force of the springs, so that the obstacles elastically move out of the inclined guide plates, and the water-proof effect is improved. Therefore, the problem that insertion is difficult due to the blocking object when the enclosure pipe is rotationally inserted is solved.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a waterway drilling and grouting pile construction device and its usage method. Background Technology

[0002] When constructing bored piles in water, it is necessary to install retaining walls in advance to fix the center of the pile position, which facilitates accurate positioning during drilling. The retaining walls are rigid metal structures. Inserting the retaining walls into the pre-set position of the bored pile prevents the hole wall from collapsing and sand from flowing during subsequent drilling, ensuring the stability of the borehole. The retaining walls also need to isolate surface water to prevent mud or impurities from entering the hole, while protecting the ground structure at the borehole opening.

[0003] When the retaining structure is inserted into the underwater soil, the retaining panels are inserted into the soil in a ring shape to form a ring-shaped barrier underwater. However, inserting the retaining panels separately can easily cause incomplete sealing between the panels. When the entire retaining structure is inserted vertically into the underwater soil, underwater obstacles (rocks) can easily block the edges of the retaining structure. Because the retaining structure is inserted vertically, the rocks are not easily squeezed out of the blocking position by the force of insertion, so the obstacles (rocks) need to be cleared before insertion can continue, making the insertion of the retaining structure more difficult. Summary of the Invention

[0004] This invention provides a construction device for underwater bored piles in waterways and a method for using it, which overcomes the shortcomings described in the background art.

[0005] The technical solution adopted by this invention to solve its technical problem is: A waterway drilling and grouting pile construction device includes a forearm, a retaining mechanism, a boom, a rotator, a float, and a driving body. The driving body travels on the surface of the float and drives the boom and forearm to rotate in coordination. The rotator rotates at the outer end of the forearm, and the retaining mechanism is fixed inside the rotator. The driving body drives the rotator to rotate with an electrical signal, causing the retaining mechanism to rotate downwards. The enclosure mechanism includes a load-bearing structure, a telescopic structure, a guiding mechanism, a push rod, a fixing block, a hydraulic actuator, an enclosure pipe, and support rods. Four telescopic structures are arranged in a ring around the lower end of the fixing block. The telescopic structures slide along a track on the lower surface of the fixing block. The hydraulic actuator is fixed in the middle of the fixing block, with the push rod located at the output end of the hydraulic actuator. The fixing block, driven by the rotation of the rotator, rotates the telescopic structures and drives the hydraulic actuator to push the push rods out, thus fixing the enclosure pipe to the load-bearing structure at the lower end of the telescopic structures. The support rods are arranged in a ring around the inside of the enclosure pipe. The guiding mechanism is fixed at the lower end of the enclosure pipe. The enclosure pipe drives the guiding mechanism to rotate and insert into the underwater mud. When the lower end of the guiding mechanism touches an obstacle, the guiding mechanism tilts inward to guide the obstacle.

[0006] Furthermore: the force-bearing structure includes a transmission structure, a force-bearing block, a concave structure, a support plate, an inclined rod, and an elastic plate. The transmission structure rotates on the side of the push rod via hinges. The inner side of the concave structure corresponds to the elastic plate and is in contact with each other. The two ends of the inclined rod are connected to the elastic plate and the push rod respectively via hinges. When the push rod is pushed, it causes the inclined rod to squeeze the elastic plate and bend the elastic plate outward. The force-bearing block fixed on the inner side of the elastic plate presses against the inner side of the enclosure pipe, and the transmission structure is inclined within the support plate. The inclined movement force causes the transmission structure to drive one side of the concave structure to press against the outer side of the enclosure pipe.

[0007] Furthermore: the transmission structure includes a top plate, a pressure plate, a first rotating shaft, and a second rotating shaft. The second rotating shaft at the lower end of the top plate rotates inside the pressure plate. The first rotating shaft is fixed on both sides of the pressure plate, and the pressure plate rotates inside the support plate through the first rotating shaft. When the second rotating shaft causes the top plate to tilt, the top plate presses the pressure plate through the second rotating shaft, and the pressure plate rotates clockwise inside the support plate through the first rotating shaft, and the first rotating shaft presses against the outside of the enclosure pipe through the concave structure.

[0008] Furthermore, the telescopic structure is provided with a slide bar and a slide block. The slide bar is fixed to the upper end of the slide block. When the slide bar is tilted, the slide block slides outward along the track on the lower surface of the fixed block through the slide bar, causing the telescopic structure to expand outward.

[0009] Furthermore: the concave structure is provided with a friction ring, a locking block, and a metal ring. There are two friction rings, which are fixed on both sides of the metal ring respectively, and one of the friction rings is in contact with the elastic plate. The locking blocks are arranged in a ring array at the lower end of the metal ring. The upper end of the enclosure tube is provided with a blocking block that matches the locking block. After the metal ring moves downward, the locking block engages with the blocking block at the upper end of the enclosure tube. The upper end of the metal ring is a protruding structure, which locks the metal ring at the lower end of the telescopic structure. When the telescopic structure rotates, the locking block at the lower end of the metal ring drives the enclosure tube to rotate.

[0010] Furthermore: the guiding mechanism is provided with a guide plate, a rotating plate, springs and a fixing bar. The fixing bar is fixed to the lower end of the enclosure pipe. The rotating plate is hinged to the lower end of the fixing bar, and the guide plate rotates within the rotating plate. Two springs are provided on the inner side of the guide plate, and the upper ends of the springs are fixed to the lower ends of the support rods. When the lower end of the guide plate touches an obstruction, the guide plate tilts and rotates around the rotating plate under the elasticity of the springs. When the rotating plate rotates on both sides of the fixing bar, it drives the guide plate to tilt towards the central axis of the enclosure pipe.

[0011] A method for using a drilling and grouting pile construction device for waterways, the specific method of using the above-mentioned drilling and grouting pile construction device for waterways is as follows: S1: The float floats on the water, while the operator controls the rotation of the boom and arm inside the main body, so that the rotator can be inserted vertically into the water. The operator also controls the rotation of the rotator to rotate the enclosure mechanism, so that the enclosure mechanism can be inserted into the water. S2: The fixed block is fixed by the rotator and drives the fixed block to rotate. When the push rod at the output end of the hydraulic device moves, it causes the protective pipe to engage in the force-bearing structure at the lower end of the telescopic structure, thereby the rotation of the fixed block drives the protective pipe to rotate. S3: The push rod drives one end of the tilting rod and the transmission structure, thereby the tilting rod drives the force block on the inner side of the elastic plate to press against the inner side of the enclosure tube. At the same time, the lower end of the transmission structure drives the concave structure to press against the outer side of the enclosure tube, forming a pressure against the enclosure tube. S4: When the enclosure pipe is inserted downwards by rotating, the guide plate in the guide mechanism touches the obstruction first. The guide plate then rotates through the rotating plate and rotates on both sides of the fixed strip. Under the elastic resistance of the spring, the guide plate tilts and guides the obstruction to move outwards.

[0012] Compared with existing technologies, this technical solution has the following advantages: In this invention, the hydraulic actuator drives the push rod to move and translate, causing the friction ring to press against the outside of the enclosure pipe. This generates an inward force on the outside of the enclosure pipe, which, together with the outward pressure from the force block, creates a lever effect. This allows the enclosure pipe to be better fixed and lifted during insertion. Furthermore, the rotation of the fixing block and the downward force from the rotator drive the enclosure pipe to rotate downward and insert it into the underwater mud. This avoids the problem of incomplete sealing caused by separate insertion of the enclosure pipe, and prevents gaps from easily appearing when the enclosure pipe is inserted separately into the underwater mud, which can lead to poor waterproofing.

[0013] In this invention, when the guide plate touches the obstruction, the guide plate tilts and rotates towards the central axis of the inner retaining pipe, and the lower end of the guide plate slides on the obstruction. At this time, the elastic force of the spring causes the guide plate to generate an elastic force on the obstruction, causing the obstruction to move elastically outward from the tilted guide plate, preventing the obstruction from entering the interior of the retaining pipe. At the same time, it prevents the obstruction from blocking the rotation of the guide plate into the soil, and under the downward rotational force, the guide plate guides the obstruction outward, thereby avoiding the problem of difficult insertion caused by the obstruction when the retaining pipe is rotated and inserted. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is an overall diagram of the present invention.

[0016] Figure 2 This is a side view of the enclosure structure.

[0017] Figure 3This is a side view of the structure under stress.

[0018] Figure 4 This is a three-dimensional schematic diagram of the transmission structure.

[0019] Figure 5 This is a three-dimensional schematic diagram of a concave structure.

[0020] Figure 6 A three-dimensional schematic diagram of the guiding mechanism.

[0021] Figure 7 This is a top view of the telescopic structure.

[0022] In the diagram: Forearm-1, Enclosure Mechanism-2, Boom-3, Rotator-4, Float-5, Driving Body-6, Force-Bearing Structure-21, Telescopic Structure-22, Guide Mechanism-23, Push Rod-24, Fixing Block-25, Hydraulic Unit-26, Enclosure Pipe-27, Support Rod-28, Transmission Structure-211, Force-Bearing Block-212, Concave Structure-213, Support Plate-214, Inclined Rod-215, Elastic Plate-216, Sliding Strip-221, Sliding Seat-222, Top Plate-11, Pressure Plate-12, First Rotating Shaft-13, Second Rotating Shaft-14, Friction Ring-31, Clamping Block-32, Metal Ring-33, Blocking Block-101, Guide Plate-41, Rotating Plate-42, Spring-43, Fixing Strip-44. Detailed Implementation

[0023] like Figures 1 to 7 As shown, the present invention proposes a construction device for underwater bored piles in waterways, including a forearm 1, a retaining mechanism 2, a boom 3, a rotator 4, a float 5, and a driving body 6. The driving body 6 travels on the surface of the float 5. The driving body 6 drives the boom 3 and the forearm 1 to rotate in coordination. The rotator 4 rotates at the outer end of the forearm 1, and the retaining mechanism 2 is fixed inside the rotator 4. The driving body 6 drives the rotator 4 to rotate with an electrical signal, and causes the retaining mechanism 2 to rotate downward. The enclosure mechanism 2 includes a force-bearing structure 21, a telescopic structure 22, a guiding mechanism 23, a push rod 24, a fixing block 25, a hydraulic device 26, an enclosure pipe 27, and a support rod 28. Four telescopic structures 22 are arranged in a ring around the lower end of the fixing block 25. The telescopic structures 22 slide along a track on the lower surface of the fixing block 25. The hydraulic device 26 is fixed in the middle of the fixing block 25, and the push rod 24 is located at the output end of the hydraulic device 26. The fixing block 25, under the rotation of the rotator 4, drives the telescopic structures 22 to rotate and drives the hydraulic device 26 to push the push rod 24, thus fixing the enclosure pipe 27 to the force-bearing structure 21 at the lower end of the telescopic structure 22. The support rod 28 is arranged in a ring around the inner side of the enclosure pipe 27. The guiding mechanism 23 is fixed to the lower end of the enclosure pipe 27. The enclosure pipe 27 drives the guiding mechanism 23 to rotate and insert into the underwater mud. When the lower end of the guiding mechanism 23 touches an obstacle, the guiding mechanism 23 tilts inward to guide the obstacle.

[0024] The force-bearing structure 21 includes a transmission structure 211, a force-bearing block 212, a concave structure 213, a support plate 214, an inclined rod 215, and an elastic plate 216. The transmission structure 211 hinges to rotate on the side of the push rod 24. The inner side of the concave structure 213 is in contact with the elastic plate 216. The two ends of the inclined rod 215 are connected to the elastic plate 216 and the push rod 24 respectively through hinges. When the push rod 24 pushes, it causes the inclined rod 215 to squeeze the elastic plate 216 and bend the elastic plate 216 outward. The force-bearing block 212 fixed on the inner side of the elastic plate 216 presses against the inner side of the enclosure pipe 27. The transmission structure 211 is inclined within the support plate 214. The inclined movement force causes the transmission structure 211 to drive one side of the concave structure 213 to press against the outer side of the enclosure pipe 27.

[0025] Furthermore, the force-bearing block 212 is made of rubber. When the force-bearing block 212 presses against the inner side of the enclosure pipe 27, it can generate a large frictional force. The position of the force-bearing block 212 pressing against the inner side of the enclosure pipe 27 and the position of the transmission structure 211 pressing against the outer side of the enclosure pipe 27 are inclined. This makes the fixed pressing positions on both sides of the enclosure pipe 27 have a certain lever effect. When the enclosure pipe 27 is in a tubular structure, the two pressing and fixing points have the effect of balancing the pressing force and producing a relatively stable pressing and fixing effect on the enclosure pipe 27.

[0026] The transmission structure 211 includes a top plate 11, a pressure plate 12, a first rotating shaft 13, and a second rotating shaft 14. The second rotating shaft 14 at the lower end of the top plate 11 rotates within the pressure plate 12. The first rotating shaft 13 is fixed on both sides of the pressure plate 12, and the pressure plate 12 rotates within the support plate 214 via the first rotating shaft 13. When the second rotating shaft 14 causes the top plate 11 to tilt, the top plate 11 presses the pressure plate 12 via the second rotating shaft 14, and the pressure plate 12 rotates clockwise within the support plate 214 via the first rotating shaft 13, and the first rotating shaft 13 presses against the outside of the enclosure pipe 27 via the concave structure 213.

[0027] The telescopic structure 22 is provided with a slide bar 221 and a slide seat 222. The slide bar 221 is fixed to the upper end of the slide seat 222. When the slide bar 221 is tilted, the slide seat 222 slides outward along the track on the lower surface of the fixed block 25 through the slide bar 221, and causes the telescopic structure 22 to expand outward.

[0028] Furthermore, the hydraulic actuator 26 drives the push rod 24 to extend, thereby causing the push rod 24 to move the tilting rod 215 and the transmission structure 211. This, in turn, pushes the slide bar 221 at the upper end of the slide block 222 to slide along the track on the lower surface of the fixed block 25. When the concave structure 213 aligns above the enclosure tube 27, it pushes the fixed block 25 downwards, causing the enclosure tube 27 to enter the concave structure 213. Subsequently, as the push rod 24 continues to drive the tilting rod 215 and the transmission structure 211, the tilting rod... 215 will squeeze the elastic plate 216, causing the elastic plate 216 to bend elastically. As a result, the force block 212 on the inner side of the elastic plate 216 presses against the inner side of the enclosure tube 27. At the same time, the transmission structure 211 will rotate inside the support plate 214, and the lower end of the transmission structure 211 will press against the outer side of the enclosure tube 27 through the concave structure 213, forming a clamping and fixing effect on the inner and outer sides of the enclosure tube 27. This can fix and clamp enclosure tubes 27 of different sizes, avoiding the problem of not being able to fix enclosure tubes 27 of different sizes.

[0029] The concave structure 213 includes a friction ring 31, a locking block 32, and a metal ring 33. Two friction rings 31 are fixed on both sides of the metal ring 33, with one friction ring 31 corresponding to the elastic plate 216. The locking blocks 32 are arranged in a ring array at the lower end of the metal ring 33. The upper end of the enclosure tube 27 is provided with a blocking block 101 that matches the locking block 32. After the metal ring 33 moves downward, the locking block 32 engages with the blocking block 101 at the upper end of the enclosure tube 27. The upper end of the metal ring 33 is a protruding structure, which allows the metal ring 33 to be locked at the lower end of the telescopic structure 22. When the telescopic structure 22 rotates, the locking block 32 at the lower end of the metal ring 33 drives the enclosure tube 27 to rotate.

[0030] Furthermore, when the enclosure pipe 27 enters the concave structure 213, the protruding structure at the upper end of the metal ring 33 engages with the lower end of the slide block 222, causing the blocking block 101 at the upper end of the enclosure pipe 27 to engage with the locking block 32. When the slide block 222 rotates, the protruding structure can better drive the locking block 32 at the lower end of the metal ring 33 to rotate the blocking block 101 at the upper end of the enclosure pipe 27.

[0031] In this invention, when the hydraulic actuator 26 drives the push rod 24 to move horizontally, the upper end of the top plate 11 rotates outside the push rod 24, causing the top plate 11 to tilt and rotate towards a horizontal state. This causes the top plate 11 to drive the second rotating shaft 14 outward, generating a certain pushing force. This results in the second rotating shaft 14 exerting a clockwise rotational force on the upper end of the pressure plate 12. When the enclosure pipe 27 is not in the concave structure 213 position, the rotational force of the pressure plate 12 will drive the slide 222 to move outward. However, when the enclosure pipe 27 is blocked in the concave structure 213 position, the slide 222 is in a fixed state, and the pressure plate 12 can only move along the support plate 214 via the first rotating shaft 13. The inner side rotates clockwise, which in turn causes the lower end of the pressure plate 12 to squeeze the friction ring 31 and press the friction ring 31 against the outside of the enclosure pipe 27. Then, the outside of the enclosure pipe 27 generates an inward force, which, together with the outward pressure generated by the force block 212, forms a lever effect. This allows the enclosure pipe 27 to be better fixed and lifted when inserted. Then, through the rotation of the rotating block 25 and the downward force of the rotating device 4, the enclosure pipe 27 is driven to rotate downward and be inserted into the underwater mud. This avoids the problem of incomplete sealing caused by the enclosure pipe 27 being inserted separately, and prevents the problem of poor waterproofing caused by gaps easily appearing when the enclosure pipe 27 is inserted separately into the underwater mud.

[0032] Furthermore, when the enclosure tube 27 is clamped by the concave structure 213, the blocking block 101 and the locking block 32 at the upper end of the enclosure tube 27 engage, so that the fixing block 25 rotates synchronously through the engagement of the locking block 32 and the blocking block 101, preventing the enclosure tube 27 from being too smooth and difficult to rotate. In addition, the friction ring 31 is made of rubber and has the characteristic of high friction. When the lower end of the pressure plate 12 drives the friction ring 31 to press against the enclosure tube 27, the fixing of the enclosure tube 27 is more secure, preventing the enclosure tube 27 from being too smooth and easy to slide and loosen during fixing.

[0033] The guiding mechanism 23 includes a guide plate 41, a rotating plate 42, a spring 43, and a fixing strip 44. The fixing strip 44 is fixed to the lower end of the enclosure pipe 27. The rotating plate 42 is hinged to both sides of the fixing strip 44, and the guide plate 41 rotates within the rotating plate 42. Two springs 43 are provided on the inner side of the guide plate 41, and the upper ends of the springs 43 are fixed to the lower ends of the support rod 28. When the lower end of the guide plate 41 touches an obstruction, the guide plate 41 tilts and rotates around the rotating plate 42 under the elasticity of the springs 43. When the rotating plate 42 rotates on both sides of the fixing strip 44, it drives the guide plate 41 to tilt towards the central axis of the enclosure pipe 27.

[0034] Furthermore, when the spring 43 is stationary, the guide plate 41 is tilted at 10°, and the guide plate 41 can only rotate 20° inside the rotating plate 42. The rotating plate 42 can only rotate 10° on both sides of the fixed strip 44. When the guide plate 41 is inserted into the underwater mud, since the bottom end of the guide plate 41 is closer to the central axis than the retaining pipe 27, the bottom end of the guide plate 41 rotates and inserts into the mud. The guide plate 41 guides the mud outward, and the mud is less likely to approach the inner wall of the retaining pipe 27 when it enters the retaining pipe 27. This can reduce the amount of mud when the mud inside the retaining pipe 27 is rotary excavated.

[0035] In this invention, when the guide plate 41 touches the obstruction, the guide plate 41 tilts and rotates towards the central axis of the inner enclosure pipe 27, and the lower end of the guide plate 41 slides on the obstruction. At this time, the elastic force of the spring 43 causes the guide plate 41 to generate an elastic force on the obstruction, causing the obstruction to move elastically outward from the tilted guide plate 41, preventing the obstruction from entering the interior of the enclosure pipe 27. At the same time, it prevents the obstruction from blocking the rotation of the guide plate 41 into the soil. When the obstruction is relatively rough, the tilting force of the guide plate 41 is not easy to slide on the obstruction. At this time, the rotating plate 42 will drive the guide plate 41 to increase the tilt angle again, increase the tilting sliding force of the guide plate 41, and make the lower end of the guide plate 41 slide inward on the surface of the obstruction. Under the downward rotational force, the guide plate 41 guides the obstruction outward, thereby avoiding the problem of difficult insertion caused by the obstruction when the enclosure pipe 27 is rotated and inserted.

[0036] Furthermore, after the guide plate 41 guides the obstruction and soil outward, the soil on the outer side of the guide plate 41 enters the outer side of the enclosure pipe 27. At this time, since the soil on the outer side of the guide plate 41 will be squeezed outward after the enclosure pipe 27 is inserted, the soil will squeeze the enclosure pipe 27, which will increase the adhesion pressure of the soil on the outer side of the enclosure pipe 27 and improve the stability of the enclosure pipe 27 after it is inserted into the underwater soil.

[0037] A method for using a drilling and grouting pile construction device for waterways, the specific method of using the above-mentioned drilling and grouting pile construction device for waterways is as follows: S1: The float 5 floats on the water, while the operator controls the rotation of the drive boom 3 and the forearm 1 inside the main body 6, so that the rotator 4 can be inserted vertically into the water. The operator also controls the rotation of the rotator 4 to rotate the enclosure mechanism 2, so that the enclosure mechanism 2 rotates and inserts into the water. S2: The fixed block 25 is fixed by the rotator 4 and drives the fixed block 25 to rotate. When the push rod 24 at the output end of the hydraulic device 26 moves, the protective tube 27 is engaged in the force-bearing structure 21 at the lower end of the telescopic structure 22, so that the rotation of the fixed block 25 drives the protective tube 27 to rotate. S3: Push rod 24 drives one end of tilt rod 215 and transmission structure 211, thereby tilt rod 215 drives the force block 212 on the inner side of elastic plate 216 to press against the inner side of enclosure tube 27, while the lower end of transmission structure 211 drives concave structure 213 to press against the outer side of enclosure tube 27, forming a pressure on enclosure tube 27. S4: When the enclosure pipe 27 is inserted downwards by rotating, the guide plate 41 in the guide mechanism 23 touches the obstruction first. The guide plate 41 then rotates through the rotating plate 42 and rotates on both sides of the fixed strip 44. As a result, the guide plate 41 tilts and guides the obstruction outwards under the elastic resistance of the spring 43.

[0038] The above description is merely a preferred embodiment of the present invention, and therefore should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the patent and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A device for constructing bored piles in waterways, characterized in that: It includes a forearm, a protective mechanism, a boom, a rotator, a float, and a driving body. The driving body travels on the surface of the float and drives the boom and forearm to rotate in coordination. The rotator rotates at the outer end of the forearm, and the protective mechanism is fixed inside the rotator. The driving body drives the rotator to rotate with an electrical signal, causing the protective mechanism to rotate downwards. The enclosure mechanism includes a load-bearing structure, a telescopic structure, a guiding mechanism, a push rod, a fixing block, a hydraulic device, an enclosure pipe, and support rods. Four telescopic structures are arranged in a ring around the lower end of the fixing block. The telescopic structures slide along a track on the lower surface of the fixing block. The hydraulic device is fixed in the middle of the fixing block, with the push rod located at the output end of the hydraulic device. The fixing block, under the rotation of the rotator, drives the telescopic structures to rotate and pushes the push rods out, thus fixing the enclosure pipe to the load-bearing structure at the lower end of the telescopic structures. The support rods are arranged in a ring inside the enclosure pipe. The guiding mechanism is fixed at the lower end of the enclosure pipe. The enclosure pipe drives the guiding mechanism to rotate and insert into the underwater mud. When the lower end of the guiding mechanism touches an obstacle, the guiding mechanism tilts inward to guide the obstacle. The force-bearing structure includes a transmission structure, a force-bearing block, a concave structure, a support plate, an inclined rod, and an elastic plate. The transmission structure rotates on the side of the push rod via hinges. The inner side of the concave structure corresponds to the elastic plate and is in contact with each other. The two ends of the inclined rod are connected to the elastic plate and the push rod respectively via hinges. When the push rod is pushed, it causes the inclined rod to squeeze the elastic plate and bend the elastic plate outward. The force-bearing block fixed on the inner side of the elastic plate presses against the inner side of the enclosure pipe, and the transmission structure is inclined within the support plate. The inclined movement force causes the transmission structure to drive one side of the concave structure to press against the outer side of the enclosure pipe. The transmission structure includes a top plate, a pressure plate, a first rotating shaft, and a second rotating shaft. The second rotating shaft at the lower end of the top plate rotates inside the pressure plate. The first rotating shaft is fixed on both sides of the pressure plate, and the pressure plate rotates inside the support plate through the first rotating shaft. When the second rotating shaft causes the top plate to tilt, the top plate presses the pressure plate through the second rotating shaft, and the pressure plate rotates clockwise inside the support plate through the first rotating shaft, and the first rotating shaft presses against the outside of the enclosure pipe through the concave structure. The telescopic structure is provided with a slide bar and a slide block. The slide bar is fixed to the upper end of the slide block. When the slide bar is tilted, the slide block slides outward along the track on the lower surface of the fixed block through the slide bar, and the telescopic structure expands outward. The concave structure includes a friction ring, a locking block, and a metal ring. There are two friction rings, which are fixed on both sides of the metal ring, and one of the friction rings is in contact with the elastic plate. The locking blocks are arranged in a ring array at the lower end of the metal ring. The upper end of the enclosure tube is provided with a stop block that matches the locking block. After the metal ring moves downward, the locking block engages with the stop block at the upper end of the enclosure tube. The upper end of the metal ring has a protruding structure, which allows the metal ring to be locked at the lower end of the telescopic structure. When the telescopic structure rotates, the locking block at the lower end of the metal ring drives the enclosure tube to rotate.

2. The underwater bored pile construction device for waterways according to claim 1, characterized in that: The guiding mechanism includes a guide plate, a rotating plate, springs, and a fixing bar. The fixing bar is fixed to the lower end of the enclosure pipe. The rotating plate is hinged to the lower end of the fixing bar, and the guide plate rotates within the rotating plate. Two springs are provided on the inner side of the guide plate, and the upper ends of the springs are fixed to the lower ends of the support rods. When the lower end of the guide plate touches an obstruction, the guide plate tilts and rotates around the rotating plate under the elasticity of the springs. When the rotating plate rotates on both sides of the fixing bar, it drives the guide plate to tilt towards the central axis of the enclosure pipe.

3. A method of using a waterway borehole pile construction device, as described in claim 2, characterized in that: The specific usage method is as follows: S1: The float floats on the water, while the operator controls the rotation of the boom and arm inside the main body, so that the rotator can be inserted vertically into the water. The operator also controls the rotation of the rotator to rotate the enclosure mechanism, so that the enclosure mechanism can be inserted into the water. S2: The fixed block is fixed by the rotator and drives the fixed block to rotate. When the push rod at the output end of the hydraulic device moves, it causes the protective pipe to engage in the force-bearing structure at the lower end of the telescopic structure, thereby the rotation of the fixed block drives the protective pipe to rotate. S3: The push rod drives one end of the tilting rod and the transmission structure, thereby the tilting rod drives the force block on the inner side of the elastic plate to press against the inner side of the enclosure tube. At the same time, the lower end of the transmission structure drives the concave structure to press against the outer side of the enclosure tube, forming a pressure against the enclosure tube. S4: When the enclosure pipe is inserted downwards by rotating, the guide plate in the guide mechanism touches the obstruction first. The guide plate then rotates through the rotating plate and rotates on both sides of the fixed strip. Under the elastic resistance of the spring, the guide plate tilts and guides the obstruction to move outwards.

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