Jacketed steel pipe pile cover plate device

Abstract

The present invention provides a jacketed steel pipe pile cover plate device that is easy and secure to install, effectively forms a sealing effect, is easy to operate, and allows for easy removal and reuse of the device. [Solution] The jacketed steel pipe pile cover plate device includes a pipe pile body 1 and a center rod 4 located inside the pipe pile body. An inclined, elastic reverse claw 6 is symmetrically attached to the bottom of the center rod, and a cover plate 3 matching the end size of the pipe pile body is fixed to the top. A seal ring is fitted to the cover plate side to ensure tight contact with the end of the pipe pile body, forming a gap-free seal. A cross groove 5 is provided in the center of the center rod, and a cross link 9 is inserted vertically into the cross groove. A spring is connected to the lower end of the cross link, and its tip extends outside the cover plate via a pull rod, with a lifting ring provided for easy lifting. By pushing down the center rod, the reverse claw smoothly penetrates the rib ring 2, then elastically returns to open, forming a mechanical lock, making installation convenient and fixing secure. To remove it, simply push down the cover plate and pull the lifting ring to retract the reverse claw and release the lock.

Description

Technical Field

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[0001] The present invention relates to the field of steel pipe pile cover plates, and specifically to a jacket steel pipe pile cover plate device.

Background Art

[0002] Jacket steel pipe piles are widely used in many fields such as marine engineering and bridge construction and are important foundation support structures. Their cover plate devices play an important role in ensuring the performance and lifespan of steel pipe piles.

[0003] In the prior art of jacket steel pipe pile cover plate devices, some devices have complicated operations when installing the cover plate, making it difficult to quickly and accurately fix the cover plate to the pile body, resulting in reduced installation efficiency. Some devices can achieve the connection between the cover plate and the pile body, but the reliability of the connection is insufficient, and it is easy for the cover plate to loosen or fall off after external forces act or after long-term use. Also, existing devices have defects in terms of sealing, making it difficult to adhere closely between the cover plate and the end of the pile body, with obvious gaps, and unable to effectively prevent external substances from entering the inside of the steel pipe pile, affecting the normal use of the steel pipe pile. Moreover, when removing the cover plate, the operation process of existing devices is complicated, taking a lot of manpower and time, and it is not easy to remove and reuse the device. Therefore, those skilled in the art have provided a jacket steel pipe pile cover plate device to solve the problems presented in the above background art.

Summary of the Invention

Problems to be Solved by the Invention

[0004] To solve the drawbacks of the above background art, the present invention provides a jacket steel pipe pile cover plate device.

Means for Solving the Problems

[0005] The object of the present invention is achieved by the following method.

[0006] A jacketed steel pipe pile cover plate device comprising a pipe pile body and a center rod located within the pipe pile body, wherein a rib ring is fixedly welded to the inner wall of the pipe pile body, the rib ring is installed along the circumferential direction of the inner wall of the pipe pile body, an inverted claw is symmetrically attached to the bottom of the center rod at an angle, the inverted claw exhibits an outward-spreading inclination, the inclination angle conforms to the arc of the inner wall of the pipe pile body, a cover plate is fixedly attached to the top of the center rod, the size of the cover plate conforms to the end size of the pipe pile body, a seal ring is fixedly fitted to the side of the cover plate facing the end of the pipe pile body, the seal ring is in close contact with the inner wall of the end of the pipe pile body, front A cross groove is provided in the center of the center rod in the vertical direction, the cross groove penetrates the center of the center rod, a cross link that fits the groove body is inserted vertically into the cross groove, a spring is fixedly connected to the lower end of the cross link, the lower end of the spring is fixedly connected to the bottom side wall of the cross groove, a pull rod is fixedly connected vertically to the top of the cross link, the pull rod penetrates the cover plate and protrudes upward from the top of the cover plate, a suspension ring is fixedly connected to the protruding end of the pull rod, a straight link is connected to the center of the cross link, and the straight link is rotatably connected to a connector fixedly installed inside the reverse claw.

[0007] Furthermore, the reverse claw is made of spring steel and has elastic recovery properties. When it contacts the rib ring, it contracts under the force received from the slope, making close contact with the center rod. After being released from the restraint of the rib ring, it elastically returns to its original position and opens, ensuring that its tip engages with the lower surface of the rib ring, forming a stable mechanical lock.

[0008] Furthermore, the seal ring is made of rubber and is fitted tightly to the end of the pipe pile body of the cover plate. When the cover plate sinks to a predetermined position, the seal ring adheres tightly to the inner wall of the end of the pipe pile body, forming a gapless sealing effect and effectively preventing external substances from entering the inside of the pipe pile.

[0009] Furthermore, the cross link is rotatably connected to one end of the straight link, and the other end of the straight link is also rotatably connected to the connector on the inside of the reverse claw. As a result, when the pull rod is pulled, the interlocking action of the cross link and the straight link causes the reverse claw to retract smoothly, releasing it from the mechanically locked state.

[0010] The spring is a compression spring and is fitted to the bottom of the cross link. The lower end of the spring is fixedly connected to the bottom side wall of the cross groove, and the tip is connected to the lower end of the cross link, providing the necessary elastic connection so that the cross link can return to its original position by the spring after the pull rod is pulled.

[0011] Furthermore, the size of the cover plate is matched to the end size of the pipe pile body, and the edges of the cover plate are smoothly finished to prevent damage to the end of the pipe pile body during installation and removal, and to enhance operational safety.

[0012] Furthermore, the lifting ring is fixedly attached to the protruding end of the pull rod by welding or screwing, and the dimensions and shape of the lifting ring are designed to facilitate the lifting operation of the crane equipment, while also ensuring that the connection between the lifting ring and the pull rod is strong and secure during the lifting operation. [Effects of the Invention]

[0013] The effect of this invention is that, as the center rod sinks along the axis of the pile, when the reverse claw contacts the rib ring, it receives force on the slope, contracts, and hits the center rod, allowing it to pass smoothly through the rib ring. After reaching the predetermined position and being released from the constraint of the rib ring, it elastically returns and opens, and its tip catches on the lower surface of the rib ring, forming a mechanical lock. This makes the cover plate easy and secure to install. A seal ring is attached to the side of the cover plate facing the end of the pipe pile body, and when the cover plate sinks into the predetermined position, the reverse claw forms a mechanical lock. When the reverse claw forms a mechanical lock, there is no obvious gap between the seal ring and the end of the pipe pile body, effectively creating a sealing effect on the pipe pile body and preventing external substances from entering the inside of the pipe pile. When removing the cover plate, push the cover plate down and fix it, pull the suspension ring to raise the cross link, and then pull the straight link to contract the reverse claw and release it from the mechanical lock, allowing the cover plate to be separated and removed. The operation is simple, and the device can be easily removed and reused. [Brief explanation of the drawing]

[0014] [Figure 1] This is a schematic diagram of the three-dimensional structure of the jacketed steel pipe pile cover plate device of the present invention. [Figure 2] This is a structural diagram of the jacketed steel pipe pile cover plate device of the present invention. [Figure 3] This is a structural diagram of the jacketed steel pipe pile cover plate device of the present invention. [Figure 4] This is a structural diagram of the jacketed steel pipe pile cover plate device of the present invention. [Figure 5] This is a structural diagram of the jacketed steel pipe pile cover plate device of the present invention. [Modes for carrying out the invention]

[0015] The present invention will be described in more detail below with reference to the drawings and specific embodiments.

[0016] This embodiment, with reference to Figures 1 to 5, specifically describes a jacketed steel pipe pile cover plate device comprising a pipe pile body 1 and a center rod 4 located inside the pipe pile body 1. A rib ring 2 is fixedly welded to the inner wall of the pipe pile body 1, and the rib ring 2 is installed along the circumferential direction of the inner wall of the pipe pile body 1. An inverted claw 6 is symmetrically attached to the bottom of the center rod 4, and the inverted claw 6 exhibits an outward-spreading inclination, the inclination angle of which matches the arc of the inner wall of the pipe pile body 1. A cover plate 3 is fixedly attached to the top of the center rod 4, the size of the cover plate 3 matches the end size of the pipe pile body 1, and a seal ring 301 is fixedly fitted to the side of the cover plate 3 facing the end of the pipe pile body 1. The center rod 4 is tightly fitted against the inner wall of the section, and a cross groove 5 is provided vertically in the center of the center rod 4. The cross groove 5 penetrates the center of the center rod 4, and a cross link 9 that fits the groove body is inserted vertically into the cross groove 5. A spring 10 is fixedly connected to the lower end of the cross link 9, and the lower end of the spring 10 is fixedly connected to the bottom side wall of the cross groove 5. A pull rod 11 is fixedly connected vertically to the top of the cross link 9, and the pull rod 11 penetrates the cover plate 3 and protrudes upward from the top of the cover plate 3. A suspension ring 12 is fixedly connected to the protruding end of the pull rod 11, and a straight link 8 is connected to the center of the cross link 9, and the straight link 8 is rotatably connected to a connector 7 that is fixedly installed inside the reverse claw 6.

[0017] The reverse claw 6 is made of spring steel and has elastic recovery properties. When it contacts the rib ring 2, it contracts due to the force received from the slope, making close contact with the center rod 4. After being released from the restraint of the rib ring 2, it elastically returns to its original position and opens, and its tip locks onto the lower surface of the rib ring 2, ensuring that a stable mechanical lock is formed. The seal ring 301 is made of rubber and is fitted tightly to the end side of the cover plate 3 toward the end of the pipe pile body 1. When the cover plate 3 sinks to a predetermined position, the seal ring 301 makes close contact with the inner wall of the end of the pipe pile body 1, forming a gapless sealing effect and effectively preventing external materials from entering the inside of the pipe pile. The cross link 9 is rotatably connected to one end of the straight link 8, and the other end of the straight link 8 and the connector 7 inside the reverse claw 6 are also rotatably connected. As a result, when the pull rod 11 is pulled, the interlocking action of the cross link 9 and the straight link 8 causes the reverse claw 6 to contract smoothly, releasing it from the mechanically locked state. The spring 10 is a compression spring and is fitted to the bottom of the cross link 9. The lower end of the spring 10 is fixedly connected to the bottom side wall of the cross groove 5, and the tip is connected to the lower end of the cross link 9, providing the necessary elastic connection so that the cross link 9 can return to its original position after the pull rod 11 has been pulled. The size of the cover plate 3 is matched to the end size of the pipe pile body 1, and the edges of the cover plate 3 are smoothly finished to prevent damage to the end of the pipe pile body during installation and removal, and to enhance operational safety. The lifting ring 12 is fixedly attached to the protruding end of the pull rod 11 by welding or screwing. The dimensions and shape of the lifting ring 12 are designed to facilitate the lifting operation of the crane equipment, while also ensuring that the connection between the lifting ring 12 and the pull rod 11 is strong and secure during the lifting operation.

[0018] Operating principle of this device: This jacketed steel pipe pile cover plate device includes a pipe pile body 1 and a center rod 4. A rib ring 2 is welded to the inner wall of the pipe pile body 1, and an inclined reverse claw 6 is attached to the bottom of the center rod 4. The reverse claw 6 is made of spring steel and has elastic recovery properties. A cover plate 3 is attached to the top of the center rod 4, and a seal ring 301 is attached to the side of the cover plate 3 that faces the end of the pipe pile body 1. A cross groove 5 is vertically opened in the center of the center rod 4, and a cross link 9 is vertically inserted into the cross groove 5. A spring 10 is attached to the lower end of the cross link 9, and the lower end of the spring 10 is connected to the bottom side wall of the cross groove 5. A pull rod 11 is vertically connected to the upper part of the cross link 9, and the pull rod 11 slides through the cover plate 3. A suspension ring 12 is fixedly attached to the protruding end of the pull rod 11 and is used to suspend this device. A straight link 8 is rotatably connected to the circumferential side of the cross link 9, a straight link is connected to the central part of the cross link, and the straight link 8 is further rotatably connected to a connector 7 that is fixedly installed inside the reverse claw 6.

[0019] When using this device, first, the inside of the pipe pile body 1 is cleaned, the flatness of the inner wall of the steel pipe pile is inspected, and it is confirmed that the welding of the rib ring 2 is solid. Then, anti-corrosion treatment is applied to the cover plate 3, center rod 4, straight link 8, cross link 9, spring 10, and reverse claw 6. The cover plate 3 is lifted via the lifting ring 12 using crane equipment. It is inserted vertically from the tip of the pipe pile body 1, and the center rod 4 sinks along the pile axis. When the reverse claw 6 contacts the rib ring 2, the reverse claw 6 receives force from the slope and contracts, approaching the center rod 4 and passing smoothly through the rib ring 2. When the cover plate 3 sinks to the predetermined position, the reverse claw 6 elastically returns to its original position after being released from the restraint of the rib ring 2 and opens, its tip catching on the lower surface of the rib ring 2, forming a mechanical lock. At this time, the seal ring 301 on the bottom side of the cover plate 3 is in close contact with the end of the pipe pile body 1, with no obvious gaps, forming a sealing effect on the pipe pile body 1.

[0020] When removing the cover plate 3, press down and fix the cover plate 3, pull the suspension ring 12, raise the cross link 9 through the suspension ring 12, raise the cross link 9 to pull the single link 8, contract the reverse claw 6, release it from the mechanical lock, and then the cover plate 3 can be separated and removed.

[0021] The above content further describes the present invention in more detail in connection with specific preferred embodiments. It is not considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, several simple derivations or substitutions can be made without departing from the concept of the present invention, and all should be regarded as within the protection scope of the present invention.

Description of Reference Numerals

[0022] 1 Pipe pile body 2 Rib ring 3 Cover plate 301 Seal ring 4 Center rod 5 Cross groove 6 Reverse claw 7 Connector 8 Single link 9 Cross link 10 Spring 11 Pull rod 12 Suspension ring

Claims

1. A jacketed steel pipe pile cover plate device comprising a pipe pile body (1) and a center rod (4) located within the pipe pile body (1), wherein a rib ring (2) is fixedly welded to the inner wall of the pipe pile body (1), the rib ring (2) is installed along the circumferential direction of the inner wall of the pipe pile body (1), and an inverted claw (6) is symmetrically attached to the bottom of the center rod (4) at an angle, the inverted claw (6) exhibits an outward-spreading inclination, the inclination angle conforming to the arc of the inner wall of the pipe pile body (1), a cover plate (3) is fixedly attached to the top of the center rod (4), the size of the cover plate (3) conforming to the end size of the pipe pile body (1), a seal ring (301) is fixedly fitted to the side of the cover plate (3) toward the end of the pipe pile body (1), the seal ring (301) is in close contact with the inner wall of the end of the pipe pile body (1), and the central part of the center rod (4) The jacketed steel pipe pile cover plate device is characterized in that a cross groove (5) is provided in the vertical direction, the cross groove (5) passes through the central part of the center rod (4), a cross link (9) that fits the groove body is inserted vertically into the cross groove (5), a spring (10) is fixedly connected to the lower end of the cross link (9), the lower end of the spring (10) is fixedly connected to the bottom side wall of the cross groove (5), a pull rod (11) is fixedly connected vertically to the top of the cross link (9), the pull rod (11) passes through the cover plate (3) and protrudes upward from the top of the cover plate (3), a suspension ring (12) is fixedly connected to the protruding end of the pull rod (11), a straight link (8) is connected to the central part of the cross link (9), and the straight link (8) is rotatably connected to a connector (7) fixedly installed inside the reverse claw (6).

2. The jacketed steel pipe pile cover plate device according to claim 1, characterized in that the reverse claw (6) is made of spring steel, has elastic recovery properties, contracts due to the force received from the slope when it comes into contact with the rib ring (2), adheres tightly to the center rod (4), elastically recovers and opens after being released from the restraint of the rib ring (2), and its tip engages with the lower surface of the rib ring (2), ensuring the formation of a stable mechanical lock.

3. The jacketed steel pipe pile cover plate device according to claim 1, characterized in that the seal ring (301) is made of rubber material and is fitted in close contact with the end side of the cover plate (3) toward the end of the pipe pile body (1), and when the cover plate (3) sinks to a predetermined position, the seal ring (301) is in close contact with the inner wall of the end of the pipe pile body (1).

4. The jacketed steel pipe pile cover plate device according to claim 1, characterized in that the cross link (9) is rotatably connected to one end of the straight link (8), the other end of the straight link (8) and the connector (7) inside the reverse claw (6) are also rotatably connected, the lifting ring (12) is fixedly attached to the protruding end of the pull rod (11) by welding or screwing, the dimensions and shape of the lifting ring (12) are designed to facilitate the lifting operation of the crane equipment, and at the same time ensure that the connection between the lifting ring (12) and the pull rod (11) is strong and reliable during the lifting operation.

5. The jacketed steel pipe pile cover plate device according to claim 1, characterized in that the spring (10) is a compression spring and is fitted to the bottom of the cross link (9), the lower end of the spring (10) is fixedly connected to the bottom side wall of the cross groove (5), and the tip is connected to the lower end of the cross link (9).

6. The jacketed steel pipe pile cover plate device according to claim 1, characterized in that the size of the cover plate (3) is matched to the end size of the pipe pile body (1), and the edge of the cover plate (3) is smoothly finished.

7. The jacketed steel pipe pile cover plate device according to claim 1, characterized in that the lifting ring (12) is fixedly attached to the protruding end of the pull rod (11) by welding or screwing, and the size and shape of the lifting ring (12) satisfy the requirements of the lifting operation of the crane equipment.

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