Auxiliary pile pulling device for water steel pipe pile

Abstract

The invention relates to the technical field of water steel pipe pile pulling, in particular to a water steel pipe pile auxiliary pile pulling device which comprises a buoyancy tank body, a first connecting bottom groove is formed in the lower surface of the buoyancy tank body, a connecting table is arranged on the upper surface of the buoyancy tank body, and two connecting frames are fixedly connected to the upper surface of the connecting table; a pile pulling mechanism facilitating automatic clamping and pile pulling is arranged on the connecting frame, a locking mechanism facilitating auxiliary pile pulling of the pile pulling mechanism is arranged between the connecting frame and the pile pulling mechanism, the supporting seat is fixedly connected to the upper surface of the connecting frame, and the telescopic cylinder is fixedly connected to the supporting seat. The pile pulling top plate is fixedly connected to the top end of the telescopic cylinder, and the fixing base is fixedly connected to the upper surface of the pile pulling top plate. According to the auxiliary pile pulling device for the water steel pipe pile, the connecting table is arranged on the upper surfaces of the buoyancy tank main bodies, and the connecting frame is arranged between the two buoyancy tank main bodies and the connecting table and used for being in lap joint with the bearing locking mechanism and the pile pulling mechanism and carrying out pile pulling treatment on the steel pipe pile.

Description

Technical Field

[0001] This invention relates to the field of underwater steel pipe pile extraction technology, specifically an auxiliary extraction device for underwater steel pipe piles. Background Technology

[0002] Aquatic steel pipe piles are a type of foundation structure used in water engineering projects. They are usually made of steel pipes and are embedded into the underwater strata through a pile driving process to provide load-bearing capacity for water structures such as bridges and docks. Aquatic steel pipe piles that serve as temporary supports need to be extracted after construction is completed.

[0003] Existing technologies lack buoyancy reduction, self-locking engagement, and hydraulically driven reciprocating pile extraction structures, requiring large equipment for extraction of steel pipe piles in water. This places high demands on the stability of the operating platform of such equipment. Furthermore, in areas with limited working conditions, large equipment cannot be used for extraction, necessitating manual hydraulic extraction using a manually erected platform, which is cumbersome. To address these shortcomings, this invention designs an auxiliary pile extraction device for steel pipe piles in water. Summary of the Invention

[0004] This invention provides an auxiliary pile extraction device for steel pipe piles on water, which has the advantages of buoyancy reduction, self-locking engagement and hydraulic drive for reciprocating pile extraction.

[0005] The present invention provides the following technical solution: an auxiliary pile extraction device for steel pipe piles on water, comprising a pontoon body, a first connecting bottom groove on the lower surface of the pontoon body, a connecting platform on the upper surface of the pontoon body, two connecting frames fixedly connected to the upper surface of the connecting platform, a pile extraction mechanism for automatically clamping and extracting piles on the connecting frames, and a locking mechanism for assisting the pile extraction mechanism in extracting piles between the connecting frames and the pile extraction mechanism; A pile extraction mechanism includes a support base, a telescopic cylinder, a pile extraction top plate, a fixed base, a pile extraction sleeve, a sliding groove, a limiting groove, a limiting slider, a pile extraction clamping block, and a cover plate. The support base is fixedly connected to the upper surface of the connecting frame. The telescopic cylinder is fixedly connected to the support base. The pile extraction top plate is fixedly connected to the top of the telescopic cylinder. The fixed base is fixedly connected to the upper surface of the pile extraction top plate. The pile extraction sleeve is fixedly connected to the fixed base. The sliding groove is formed on the inner wall of the pile extraction sleeve. The limiting groove is formed on the inner side of the sliding groove. The limiting slider is slidably connected in the limiting groove. The pile extraction clamping block is fixedly connected to the limiting slider. The cover plate is fixedly connected to the top of the pile extraction sleeve.

[0006] As a preferred embodiment of the present invention, the locking mechanism includes a fixed frame, a motor, a lead screw, a clamping sleeve, a movable sleeve, and a locking slider. The fixed frame is fixedly connected to the upper surface of the connecting platform, the motor is fixedly connected to one side of the fixed frame, the lead screw is disposed at the output end of the motor, the clamping sleeve is fixedly connected to the upper surface of the fixed frame, the movable sleeve is fixedly connected to the side wall of the clamping sleeve, and the locking slider is slidably connected inside the movable sleeve.

[0007] As a preferred embodiment of the present invention, a second connecting groove is provided on the lower surface of the float body, a first connecting plate is provided inside the first connecting groove, a second connecting plate is provided inside the second connecting groove, and connecting bolts are provided on the first connecting plate and the second connecting plate.

[0008] As a preferred embodiment of the present invention, the telescopic cylinder is connected to an external hydraulic control device, and the support base and the top plate of the pile extraction are provided with a circular hole, the circular hole being equal to the inner diameter and center of the pile extraction sleeve.

[0009] As a preferred embodiment of the present invention, the pile-pulling clamp is slidably connected within the groove.

[0010] As a preferred embodiment of the present invention, the cover plate is disposed on top of the pile pulling clamp and the limiting slider, and limits the upward movement of the limiting slider and the pile pulling clamp.

[0011] As a preferred embodiment of the present invention, the lead screw is rotatably disposed within the movable sleeve, and the lead screw is threadedly inserted into the locking slider.

[0012] As a preferred embodiment of the present invention, the first connecting plate is fixedly installed in two first connecting bottom grooves that are adjacent to each other at the bottom of the two sets of floating box bodies.

[0013] As a preferred embodiment of the present invention, the second connecting plate is fixedly installed in two second connecting bottom grooves that are adjacent to each other at the bottom of the two sets of floating box bodies.

[0014] As a preferred embodiment of the present invention, the threaded end of the connecting bolt passes through the first connecting plate and the second connecting plate and is fixedly connected to the main body of the float box.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This auxiliary pile extraction device for steel pipe piles on water involves hoisting the assembled pontoon body and connecting frame onto the water surface, placing the steel pipe pile between two sets of connecting frames, and then installing and fixing the locking mechanism and pile extraction mechanism on the connecting platform and connecting frame. The top of the steel pipe pile passes through the fixing frame and the pile extraction top plate and is inserted into the clamping sleeve and the pile extraction sleeve. At the same time, the inner wall of the pile extraction clamping block contacts the outer wall of the steel pipe pile. At this time, the external hydraulic control equipment simultaneously controls two sets of telescopic cylinders to extend and push the pile extraction top plate upward. The upward-moving pile extraction top plate drives the pile extraction sleeve to move upward through the fixing seat, and the pile extraction clamping block set in the pile extraction sleeve clamps and fixes the steel pipe pile under the action of the sliding groove, the limiting groove and the limiting slider. Thus, the steel pipe pile can be extracted as the pile extraction sleeve moves upward. This device facilitates the extraction of steel pipe piles on water.

[0016] 2. This auxiliary pile extraction device for steel pipe piles on water, after the telescopic cylinder extends to its maximum distance, the left and right sets of motors start simultaneously to control the movable sleeve to rotate forward, pushing out the locking slider to clamp and fix the steel pipe pile. The telescopic cylinder retracts to pull the top plate of the pile extraction back to its original position. During the process of the top plate of the pile extraction moving down to reset, the pile extraction sleeve moves down accordingly, and the pile extraction clamping block moves up under the action of the limiting slider and the limiting groove to release the clamping and fixing of the steel pipe pile. After the pile extraction sleeve and the top plate of the pile extraction move down to reset, the steel pipe pile is clamped again and moved up to perform the pile extraction reciprocating operation to pull out the steel pipe pile. This device facilitates the pile extraction mechanism to perform reciprocating pile extraction operations on steel pipe piles. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the main structure of the pile extraction device of the present invention; Figure 3 This is an exploded view of the connection structure of the pontoon and connecting frame of the present invention; Figure 4 This is a schematic diagram of the floating box and bottom connecting groove structure of the present invention; Figure 5 This is an exploded structural diagram of the locking mechanism and pile extraction mechanism of the present invention; Figure 6 This is a schematic diagram of the exploded structure of the pile extraction mechanism of the present invention.

[0018] In the diagram: 1. Floating box body; 101. Connecting platform; 102. Connecting frame; 2. First connecting bottom groove; 201. Second connecting bottom groove; 202. First connecting plate; 203. Second connecting plate; 204. Connecting bolt; 3. Locking mechanism; 301. Fixing frame; 302. Motor; 303. Screw; 304. Clamping sleeve; 305. Movable sleeve; 306. Locking slider; 4. Pile extraction mechanism; 401. Support seat; 402. Telescopic cylinder; 403. Pile extraction top plate; 404. Fixing seat; 405. Pile extraction sleeve; 406. Slide groove; 407. Limiting groove; 408. Limiting slider; 409. Pile extraction clamping block; 410. Cover plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1-6 A waterborne steel pipe pile auxiliary pile extraction device includes a pontoon body 1, a first connecting bottom groove 2 on the lower surface of the pontoon body 1, a connecting platform 101 on the upper surface of the pontoon body 1, two connecting frames 102 fixedly connected to the upper surface of the connecting platform 101, a pile extraction mechanism 4 for automatic clamping and extraction of piles on the connecting frame 102, and a locking mechanism 3 between the connecting frame 102 and the pile extraction mechanism 4 for assisting the pile extraction mechanism 4 in extracting piles. Please see Figure 5-6The pile extraction mechanism 4 includes a support base 401, a telescopic cylinder 402, a pile extraction top plate 403, a fixed base 404, a pile extraction sleeve 405, a sliding groove 406, a limiting groove 407, a limiting slider 408, a pile extraction clamping block 409, and a cover plate 410. The support base 401 is fixedly connected to the upper surface of the connecting frame 102. The telescopic cylinder 402 is fixedly connected to the support base 401. The pile extraction top plate 403 is fixedly connected to the top of the telescopic cylinder 402. The fixed base 404 is fixedly connected to the upper surface of the pile extraction top plate 403. The pile extraction sleeve 405 is fixedly connected to the fixed base 404. The sliding groove 406 is formed on the inner wall of the pile extraction sleeve 405. A limiting groove 407 is formed inside the sliding groove 406. A limiting slider 408 is slidably connected in the limiting groove 407. A pile-pulling clamp 409 is fixedly connected to the limiting slider 408. A cover plate 410 is fixedly connected to the top of the pile-pulling sleeve 405. A telescopic cylinder 402 is connected to an external hydraulic control device. A circular hole is formed on the support base 401 and the pile-pulling top plate 403. The circular hole is equal to the inner diameter and center of the pile-pulling sleeve 405. The pile-pulling clamp 409 is slidably connected in the sliding groove 406. The cover plate 410 is set on the top of the pile-pulling clamp 409 and the limiting slider 408, and limits the upward movement of the limiting slider 408 and the pile-pulling clamp 409.

[0021] By setting up a pile extraction sleeve 405, a sliding groove 406, a limiting groove 407, a limiting slider 408, and a pile extraction clamping block 409, the pile extraction clamping block 409 is designed to be limited by the limiting groove 407 and the limiting slider 408 when the pile extraction sleeve 405 moves upward. Please see Figure 5 The locking mechanism 3 includes a fixed frame 301, a motor 302, a lead screw 303, a clamping sleeve 304, a movable sleeve 305, and a locking slider 306. The fixed frame 301 is fixedly connected to the upper surface of the connecting platform 101. The motor 302 is fixedly connected to one side of the fixed frame 301. The lead screw 303 is located at the output end of the motor 302. The clamping sleeve 304 is fixedly connected to the upper surface of the fixed frame 301. The movable sleeve 305 is fixedly connected to the side wall of the clamping sleeve 304. The locking slider 306 is slidably connected inside the movable sleeve 305. The lead screw 303 is rotatably located inside the movable sleeve 305 and is threadedly inserted into the locking slider 306.

[0022] By setting up a clamping sleeve 304, a movable sleeve 305, and a locking slider 306, the steel pipe pile is clamped and fixed after the pile extraction mechanism 4 moves to the highest position. This allows the pile extraction mechanism 4 to disengage from the clamping and fixing of the steel pipe pile and move down to reset for the next pile extraction operation, thereby realizing the reciprocating pile extraction of the pile extraction mechanism 4. By setting up a fixed frame 301, a motor 302, and a lead screw 303, the movement of the locking slider 306 is controlled to clamp and fix the steel pipe pile.

[0023] Please see Figure 4The lower surface of the float body 1 is provided with a second connecting groove 201. A first connecting plate 202 is provided inside the first connecting groove 2, and a second connecting plate 203 is provided inside the second connecting groove 201. A connecting bolt 204 is provided on the first connecting plate 202 and the second connecting plate 203. The first connecting plate 202 is fixedly installed in the two first connecting grooves 2 adjacent to each other at the bottom of the two sets of float bodies 1. The second connecting plate 203 is fixedly installed in the two second connecting grooves 201 adjacent to each other at the bottom of the two sets of float bodies 1. The threaded end of the connecting bolt 204 passes through the first connecting plate 202 and the second connecting plate 203 and is fixedly connected to the float body 1.

[0024] By setting up a first connecting bottom groove 2, a second connecting bottom groove 201, a first connecting plate 202, and a second connecting plate 203, multiple sets of floating box bodies 1 can be spliced ​​and fixed as needed, thereby improving the load-bearing capacity and stability of the floating box body 1. By setting up connecting bolts 204, the first connecting plate 202 and the second connecting plate 203 can be placed in the first connecting bottom groove 2 and the second connecting bottom groove 201 and then fall off.

[0025] Working principle: When the auxiliary pile extraction device for steel pipe piles on water is used, in the initial state, the connecting platform 101 is first set on the upper surface of the floating box body 1. A connecting frame 102 is set between the two sets of floating box bodies 1 and the connecting platform 101 to connect the bearing locking mechanism 3 and the pile extraction mechanism 4 and to extract the steel pipe pile. A first connecting bottom groove 2 and a second connecting bottom groove 201 are opened at the bottom of the floating box body 1. A first connecting plate 202 and a second connecting plate 203 are respectively set in the second connecting bottom groove 201 and the first connecting bottom groove 2 and fixed by connecting bolts 204, so as to splice multiple sets of floating box bodies 1, thereby improving the stability during pile extraction and meeting the requirements of pile extraction of different depths or sizes. When it is necessary to extract steel pipe piles, the assembled floating box body 1 and connecting frame 102 are first hoisted and placed on the water surface, with the steel pipe pile positioned between the two sets of connecting frames 102. Then, the locking mechanism 3 and the pile extraction mechanism 4 are installed and fixed on the connecting platform 101 and the connecting frame 102, and the top of the steel pipe pile is inserted into the clamping sleeve 304 and the pile extraction sleeve 405 through the fixing frame 301 and the pile extraction top plate 403. At the same time, the inner wall of the pile extraction clamp 409 contacts the outer wall of the steel pipe pile. At this time, the external hydraulic control equipment simultaneously controls the two sets of telescopic cylinders 402 to extend and push the pile extraction top plate 403 upward. The upward-moving pile extraction top plate 403 drives the pile extraction sleeve 405 upward through the fixing seat 404, and the pile extraction clamp 409 set in the pile extraction sleeve 405 is in the sliding groove 406 and the limiting groove 405. Under the action of 7 and the limiting slider 408, the steel pipe pile is clamped and fixed, so that the steel pipe pile can be pulled out by moving upward with the pile pulling sleeve 405. After the extension distance of the telescopic cylinder 402 reaches the maximum, the left and right motors 302 start simultaneously to control the movable sleeve 305 to rotate forward and push out the locking slider 306 to clamp and fix the steel pipe pile. The telescopic cylinder 402 retracts to pull the pile pulling top plate 403 back to its original position. During the process of the pile pulling top plate 403 moving down to reset, the pile pulling sleeve 405 moves down with it and the pile pulling clamp 409 moves up under the action of the limiting slider 408 and the limiting groove 407 to release the clamping and fixing of the steel pipe pile. After the pile pulling sleeve 405 and the pile pulling top plate 403 move down to reset, the steel pipe pile is clamped again and moved up to perform the pile pulling reciprocating operation to pull out the steel pipe pile. This device facilitates the pile pulling operation of steel pipe piles.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An auxiliary pile extraction device for steel pipe piles on water, comprising a pontoon body (1), characterized in that: The lower surface of the pontoon body (1) is provided with a first connecting bottom groove (2), the upper surface of the pontoon body (1) is provided with a connecting platform (101), the upper surface of the connecting platform (101) is fixedly connected with two connecting frames (102), the connecting frame (102) is provided with a pile pulling mechanism (4) for automatic clamping and pulling of piles, and a locking mechanism (3) is provided between the connecting frame (102) and the pile pulling mechanism (4) for assisting the pile pulling mechanism (4) in pulling piles. The pile extraction mechanism (4) includes a support base (401), a telescopic cylinder (402), a pile extraction top plate (403), a fixed base (404), a pile extraction sleeve (405), a sliding groove (406), a limiting groove (407), a limiting slider (408), a pile extraction clamp (409), and a cover plate (410). The support base (401) is fixedly connected to the upper surface of the connecting frame (102), the telescopic cylinder (402) is fixedly connected to the support base (401), and the pile extraction top plate (403) is fixedly connected to the telescopic cylinder (402). At the top, the fixed seat (404) is fixedly connected to the upper surface of the pile extraction top plate (403), the pile extraction sleeve (405) is fixedly connected to the fixed seat (404), the sliding groove (406) is opened on the inner wall of the pile extraction sleeve (405), the limiting groove (407) is opened on the inner side of the sliding groove (406), the limiting slider (408) is slidably connected in the limiting groove (407), the pile extraction clamp (409) is fixedly connected to the limiting slider (408), and the cover plate (410) is fixedly connected to the top of the pile extraction sleeve (405).

2. The auxiliary pile extraction device for underwater steel pipe piles according to claim 1, characterized in that: The locking mechanism (3) includes a fixed frame (301), a motor (302), a lead screw (303), a clamping sleeve (304), a movable sleeve (305), and a locking slider (306). The fixed frame (301) is fixedly connected to the upper surface of the connecting platform (101). The motor (302) is fixedly connected to one side of the fixed frame (301). The lead screw (303) is located at the output end of the motor (302). The clamping sleeve (304) is fixedly connected to the upper surface of the fixed frame (301). The movable sleeve (305) is fixedly connected to the side wall of the clamping sleeve (304). The locking slider (306) is slidably connected inside the movable sleeve (305).

3. The auxiliary pile extraction device for underwater steel pipe piles according to claim 1, characterized in that: The lower surface of the float body (1) is provided with a second connecting groove (201), the first connecting groove (2) is provided with a first connecting plate (202), the second connecting groove (201) is provided with a second connecting plate (203), and the first connecting plate (202) and the second connecting plate (203) are provided with connecting bolts (204).

4. The auxiliary pile extraction device for underwater steel pipe piles according to claim 1, characterized in that: The telescopic cylinder (402) is connected to an external hydraulic control device. The support base (401) and the pile extraction top plate (403) are provided with circular holes, and the circular holes are equal to the inner diameter and center of the pile extraction sleeve (405).

5. The auxiliary pile extraction device for underwater steel pipe piles according to claim 1, characterized in that: The pile-pulling clamp (409) is slidably connected in the groove (406).

6. The auxiliary pile extraction device for underwater steel pipe piles according to claim 1, characterized in that: The cover plate (410) is located on top of the pile pulling clamp (409) and the limiting slider (408), and limits the upward movement of the limiting slider (408) and the pile pulling clamp (409).

7. The auxiliary pile extraction device for underwater steel pipe piles according to claim 2, characterized in that: The lead screw (303) is rotatably disposed in the movable sleeve (305), and the lead screw (303) is threadedly inserted into the locking slider (306).

8. The auxiliary pile extraction device for underwater steel pipe piles according to claim 3, characterized in that: The first connecting plate (202) is fixedly installed in the two first connecting bottom grooves (2) at the bottom of the two sets of floating box bodies (1) where they are adjacent to each other.

9. The auxiliary pile extraction device for underwater steel pipe piles according to claim 3, characterized in that: The second connecting plate (203) is fixedly installed in two second connecting bottom grooves (201) where the bottoms of the two sets of floating box bodies (1) are adjacent to each other.

10. The auxiliary pile extraction device for underwater steel pipe piles according to claim 3, characterized in that: The threaded end of the connecting bolt (204) passes through the first connecting plate (202) and the second connecting plate (203) and is fixedly connected to the main body (1) of the floating box.

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