Pile body connecting device

Abstract

The invention discloses a pile body connecting device, and relates to the technical field of pile body connection, the pile body connecting device comprises a supporting mechanism, the outer side of the supporting mechanism is slidably connected with a lifting disc used for preliminary supporting before pile splicing, a square frame sleeve is arranged on the outer side of the supporting mechanism and located above the lifting disc, and an inner connecting rod is arranged above the square frame sleeve; the inner connecting rod is rotationally connected to the outer side of the supporting mechanism and the inner connecting rod is rotationally connected to the outer side of the supporting mechanism; the upper pipe pile and the lower pipe pile can be precisely connected, later mortar pouring is facilitated, stability of the pipe piles in the mortar pouring process is kept, deviation is prevented, it is avoided that errors caused to pile bodies in the construction process affect the pile splicing precision, and a guarantee is provided for the reliability of pile splicing; before pile splicing is carried out, the pile body connecting device only needs to be positioned and installed on a lower end pile body, guiding and inner supporting fixing can be carried out on installation of an upper pipe pile in the later period, operation is convenient and fast, and compared with a construction scheme in the prior art, time for auxiliary positioning operation can be saved, and construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pile connection, in particular to a pile connection device. Background Art

[0002] Precast pipe piles are core components of modern foundation engineering. Their segmented construction means that the quality of the pile connections directly affects the bearing capacity and durability of the entire structure. Traditional precast pipe pile connection methods (such as welding, mechanical sleeves, and adhesive bonding) commonly suffer from the following technical issues in practical applications:

[0003] 1. Strict requirements are placed on the processing accuracy and alignment deviation of the pile end faces. During the connection process, there is a lack of an adaptive correction structure, which cannot compensate for dynamic errors during construction, resulting in the connection reliability being completely dependent on the level of manual operation.

[0004] 2. Traditional connection methods require a lot of auxiliary work time, which restricts construction progress and cannot meet the needs of high-turnover construction.

[0005] 3. The stiffness and deformation coordination ability of the connection nodes are insufficient. Under non-uniform loads or earthquakes, fatigue cracks and deformation are prone to occur at the nodes.

[0006] Therefore, in order to solve the problems of low construction efficiency and poor environmental adaptability in the existing prefabricated pipe pile connection, the present invention provides a new pile connection device with complex functions such as adaptive correction, rapid installation, and deformation coordination. Summary of the Invention

[0007] In order to solve the deficiencies mentioned in the above background technology, the object of the present invention is to provide a pile connection device.

[0008] The purpose of the present invention can be achieved through the following technical solutions: A pile connection device includes a support mechanism, wherein the support mechanism includes a fixed platform, the bottom end of the fixed platform is fixedly connected to a cylindrical base, and the top end of the support mechanism is fixedly connected to a fixed cylinder.

[0009] The outer side of the support mechanism is slidably connected to a lifting plate for preliminary support before pile connection. A square frame sleeve is provided on the outer side of the support mechanism and above the lifting plate. An inner connecting rod is provided above the square frame sleeve. The inner connecting rod is rotatably connected to the outer side of the support mechanism. The end of the inner connecting rod away from the support mechanism is rotatably connected to an inner push plate for positioning the top pipe pile. The inner connecting rod is used to cooperate in the positioning of the inner push plate. The inner side of the inner connecting rod is slidably connected to a rectangular moving block for limiting it. An array of arc-shaped pressure plates are distributed on the outer side of the lifting plate for being pressed downward to the bottom end by the top pipe pile during the pile connection process.

[0010] Furthermore, the end of the fixed tube away from the cylindrical base is fixedly connected to a top cover, a receiving groove is provided on the top of the top cover, ear seats are arranged in an array around the outside of the fixed tube, and a positioning shaft is fixedly connected to the inside of the ear seats.

[0011] Furthermore, a plurality of guide sleeves are fixedly connected to the bottom end of the lifting plate corresponding to the direction of the ear seat, and a side support column is fixedly connected to the end of the guide sleeve close to the cylindrical base, and the side support column is fixedly connected to the bottom end of the lifting plate.

[0012] Furthermore, a plurality of lifting rods are fixedly connected to the positions of the ear seats on the outside of the square frame sleeve. The lifting rods are L-shaped with the long sides close to the support mechanism. A sliding groove is provided on the top of the short side of each lifting rod, and a guide rod is fixedly connected to the inside of each sliding groove.

[0013] Furthermore, a rotating shaft hole is provided at one end of the inner connecting rod close to the support mechanism, and the inner connecting rod is rotatably connected to the outside of the positioning shaft through the rotating shaft hole. The end of the inner connecting rod away from the rotating shaft hole is rotatably connected to the outer connecting rod, an elliptical groove is provided on the inner side of the outer connecting rod, and a connecting hole is provided on the outer side of the end of the outer connecting rod away from the inner connecting rod.

[0014] Furthermore, the bottom end of the inner push plate is fixedly connected to a limit shaft, the outer side of the limit shaft is rotatably connected to a shaft sleeve, and the outer side of the shaft sleeve is fixedly connected to the outer push plate.

[0015] Furthermore, a matching groove is provided at the outer bottom end of the rectangular moving block corresponding to the position of the guide rod, and a limiting groove is provided at the outer side of the matching groove corresponding to the position of the elliptical groove. The limiting rod is slidably connected to the inner side of the limiting groove, and the two ends of the limiting rod are respectively slidably and limitedly connected within the elliptical groove.

[0016] Furthermore, the inner side of the arc-shaped pressure plate is slidably connected to a transmission rod, the outer side of the transmission rod is rotatably connected to a support seat, a limiting groove is provided on the outer side of one end of the transmission rod away from the arc-shaped pressure plate, the inner side of the limiting groove is slidably connected to a connecting rod, the outer side of the connecting rod is rotatably connected to a connecting frame, the top of the connecting frame is fixedly connected to a lifting platform, and the lifting platform is slidably sleeved inside the guide sleeve.

[0017] Furthermore, one end of the arc-shaped pressure plate away from the support mechanism is fixedly connected to a connecting pipe, an insertion rod is fixedly installed inside the connecting pipe, and one end of the insertion rod away from the connecting pipe is fixedly connected to the arc-shaped pressure rod.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention makes use of the weight and shape of the pipe pile body to allow the pipe pile to be roughly connected. During the falling process of the pipe pile, its weight can be used to press the surrounding arc-shaped pressure plates toward the bottom, lift the transmission rod connected to the arc-shaped pressure plates, and let the transmission rod drive the lifting platform, so that the lifting platform drives the square frame sleeve to move through the lifting plate. During the movement of the square frame sleeve, the inner push plates on all sides are pushed outward synchronously, so that the pipe pile can be pushed by the inner push plates for installation guidance and internal support fixation during the falling process. After the pile connection is completed, mortar can be poured into the top pipe pile, and the connecting device can be directly poured into the pipe pile. Positioning can also be achieved during the pouring process, keeping the pipe pile stable during the pouring process, preventing deviation, and avoiding the error caused to the pile body during construction to affect the pile connection accuracy, thereby providing a guarantee for the reliability of the pile connection.

[0020] 2. The present invention only requires positioning and installing the pile connection device before connecting the piles, which is easy to operate. Compared with the construction scheme in the prior art, it can save the time of auxiliary positioning work and improve construction efficiency.

[0021] 3. After the support mechanism is positioned, it is fixed to the pile body at the bottom, which can avoid the displacement caused by the influence of cement pipe piles during the positioning process, and can further improve the accuracy of positioning. The pile body connection device is completely cast in the connected pipe pile to maintain the integrity of the pile body connection. It can effectively avoid the problem of insufficient coordination ability between the stiffness and deformation of the connection node in the existing technology. Under uneven load or earthquake, it can also avoid the problem of fatigue cracks and deformation of the nodes that are prone to occur in the bonding method in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the support mechanism of the present invention.

[0025] Figure 3 It is a schematic diagram of the square frame structure of the present invention.

[0026] Figure 4 It is a schematic diagram of the internal structure of the inner connecting rod of the present invention.

[0027] Figure 5 It is a schematic diagram of the push plate structure of the present invention.

[0028] Figure 6 It is an internal schematic diagram of the rectangular moving block and the arc-shaped pressing plate of the present invention.

[0029] In the figure: 1. supporting mechanism; 11. fixing platform; 12. cylindrical base; 13. fixing cylinder; 14. top cover; 15. receiving groove; 16. ear seat; 17. positioning shaft; 2. lifting plate; 21. guide sleeve; 22. side support column; 3. square frame sleeve; 31. lifting rod; 32. sliding groove; 33. guide rod; 4. inner connecting rod; 41. rotating shaft hole; 42. outer connecting rod; 43. elliptical groove; 44. connecting hole; 5. inner push plate; 51. limiting shaft; 52. shaft sleeve; 53. outer push plate; 6. rectangular moving block; 61. matching groove; 62. limiting groove; 63. limiting rod; 7. arc pressure plate; 71. transmission rod; 72. support seat; 73. limiting groove; 74. connecting rod; 75. connecting frame; 76. lifting platform; 77. connecting pipe; 78. plug rod; 79. arc pressure rod. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] A pile connection device, such as Figure 1 As shown, it includes a supporting mechanism 1, and the outer side of the supporting mechanism 1 is slidingly connected to a lifting plate 2 for preliminary support before pile connection. A square frame sleeve 3 is provided on the outer side of the supporting mechanism 1 and above the lifting plate 2. An inner connecting rod 4 is provided above the square frame sleeve 3. The inner connecting rod 4 is rotatably connected to the outer side of the supporting mechanism 1, and the end of the inner connecting rod 4 away from the supporting mechanism 1 is rotatably connected to an inner push plate 5 for positioning the top pipe pile. The inner connecting rod 4 is used to cooperate in the positioning of the inner push plate 5. The inner side of the inner connecting rod 4 is slidingly connected to a rectangular moving block 6 for limiting it. An arc-shaped pressure plate 7 is distributed in an array on the outer side of the lifting plate 2 for being pressed downward to the bottom end by the top pipe pile during the pile connection process.

[0033] The entire pile connection device is supported by the support mechanism 1 before pile connection, the lifting plate 2 is used to assist in supporting the entire pile connection device before pile connection, the square frame sleeve 3 is used to support the inner push plates 5 on the four sides of the outside through the inner connecting rod 4 and the rectangular moving block 6, and the arc-shaped pressure plate 7 is used to be pressed down during the pile connection process, thereby driving the entire pile connection device to guide and position the pipe pile at the top end.

[0034] like Figure 2 As shown, the support mechanism 1 includes a fixed platform 11, the bottom end of the fixed platform 11 is fixedly connected to a cylindrical base 12, the top end of the fixed platform 11 is fixedly connected to a fixed cylinder 13, the end of the fixed cylinder 13 away from the cylindrical base 12 is fixedly connected to a top cover 14, a receiving groove 15 is provided on the top of the top cover 14, ear seats 16 are distributed in an array around the outside of the fixed cylinder 13, and a positioning shaft 17 is fixedly connected to the inside of the ear seat 16.

[0035] The fixed platform 11 is positioned and supported by the cylindrical base 12. The fixed cylinder 13 at the top of the fixed platform 11 is used to support the top cover 14. The top cover 14 is used to support the outer inner push plate 5. The receiving groove 15 at the top of the top cover 14 is used to reduce the weight of the entire support mechanism 1, and at the same time facilitate the subsequent pouring of concrete to further maintain stability.

[0036] A plurality of guide sleeves 21 are fixedly connected to the position of the ear seat 16 at the bottom end of the lifting plate 2 , and a side support column 22 is fixedly connected to the end of the guide sleeve 21 close to the cylindrical base 12 . The side support column 22 is fixedly connected to the bottom end of the lifting plate 2 .

[0037] The lifting plate 2 is supported by the side support columns 22 at the bottom end of the lifting plate 2 to maintain stability before the pile is connected.

[0038] like Figure 3 As shown, a plurality of lifting rods 31 are fixedly connected to the position of the ear seat 16 on the outside of the square frame 3. The lifting rods 31 are L-shaped with the long side close to the support mechanism 1. A sliding groove 32 is provided on the top of the short side of each lifting rod 31, and a guide rod 33 is fixedly connected to the inside of each sliding groove 32.

[0039] The outer lifting rod 31 is connected through the square frame sleeve 3, so that the lifting rod 31 can be lifted and lowered synchronously. During the movement, the lifting rod 31 can push the inner connecting rod 4 at the top to move. The sliding groove 32 is used to guide the rectangular moving block 6 to move, and the guide rod 33 is used to further guide the rectangular moving block 6 during its movement.

[0040] like Figure 2 、 Figure 3 and Figure 4As shown, the inner connecting rod 4 is provided with a rotating shaft hole 41 at one end close to the support mechanism 1, and the inner connecting rod 4 is rotatably connected to the outside of the positioning shaft 17 through the rotating shaft hole 41. The end of the inner connecting rod 4 away from the rotating shaft hole 41 is rotatably connected to the outer connecting rod 42, and an elliptical groove 43 is provided on the inner side of the outer connecting rod 42. A connecting hole 44 is provided on the outer side of the end of the outer connecting rod 42 away from the inner connecting rod 4.

[0041] The inner connecting rod 4 is pushed from the bottom to the top by the lifting rod 31, so that the inner connecting rod 4 is flipped toward the top under the restriction of the rotating shaft hole 41, and the outer connecting rod 42 is also pushed outward. During the process of being pushed outward, the outer connecting rod 42 is restricted by the rectangular moving block 6, so it will not flip toward the bottom, thereby driving the inner push plate 5 to be pushed outward.

[0042] like Figure 5 As shown, the bottom end of the inner push plate 5 is fixedly connected to a limit shaft 51 , the outer side of the limit shaft 51 is rotatably connected to a shaft sleeve 52 , and the outer side of the shaft sleeve 52 is fixedly connected to an outer push plate 53 .

[0043] Through the cooperation between the limiting shaft 51 and the shaft sleeve 52 set at the bottom end of the inner push plate 5, the outer push plate 53 can be hinged to the inner push plate 5. During the positioning process, the positioning accuracy can be determined by the interaction between the position of the outer push plate 53 and the steel bars of the concrete pipe pile at the bottom.

[0044] like Figure 4 and Figure 6 As shown, a mating groove 61 is provided at the outer bottom end of the rectangular moving block 6 corresponding to the position of the guide rod 33, and a limiting groove 62 is provided at the outer side of the mating groove 61 corresponding to the position of the elliptical groove 43. The inner side of the limiting groove 62 is slidingly connected to the limiting rod 63, and the two ends of the limiting rod 63 are respectively slidably limited and connected within the elliptical groove 43.

[0045] The limiting rod 63 passes through the limiting groove 62 and is slidably connected to the elliptical groove 43, thereby utilizing the rectangular moving block 6 to limit the outer connecting rod 42 to prevent the outer connecting rod 42 from flipping to the bottom end. At the same time, the outer connecting rod 42 is hinged to the inner push plate 5 through the connecting hole 44, so that the inner push plate 5 is pushed outward by the control of the inner connecting rod 4. At the same time, the rectangular moving block 6 slides on the inside of the sliding groove 32 to ensure that the rectangular moving block 6 can correctly guide the flipping of the outer connecting rod 42 during the flipping process of the inner connecting rod 4, and push the inner push plate 5 to move outward.

[0046] like Figure 2 and Figure 6As shown, a transmission rod 71 is slidably connected to the inner side of the arc-shaped pressure plate 7, and a support seat 72 is rotatably connected to the outer side of the transmission rod 71. A limiting groove 73 is provided on the outer side of the end of the transmission rod 71 away from the arc-shaped pressure plate 7. A connecting rod 74 is slidably connected to the inner side of the limiting groove 73, and a connecting frame 75 is rotatably connected to the outer side of the connecting rod 74. A lifting platform 76 is fixedly connected to the top of the connecting frame 75, and the lifting platform 76 is slidably sleeved inside the guide sleeve 21.

[0047] like Figure 6 As shown, the end of the arc-shaped pressure plate 7 away from the support mechanism 1 is fixedly connected to a connecting tube 77 , an insertion rod 78 is fixedly installed inside the connecting tube 77 , and the end of the insertion rod 78 away from the connecting tube 77 is fixedly connected to a arc-shaped pressure rod 79 .

[0048] The arc pressure plate 7 is lifted and lowered to control the transmission rod 71 that is slidably connected to both sides of it to flip, so that the transmission rod 71 drives the connecting frame 75 that is slidably connected to the end of the support seat 72 away from the arc pressure plate 7 to move toward the top under the restriction of the support seat 72, thereby driving the lifting platform 76 to move toward the top.

[0049] The arc pressure rod 79 is driven by the connecting tube 77 on the outside of the arc pressure plate 7 in conjunction with the insert rod 78, so that the arc pressure rod 79 can be used for manual control for positioning. Specifically, before connecting the piles, the arc pressure plate 7 is manually pressed to move the arc pressure rod 79 toward the bottom end, so that the arc pressure rod 79 and the steel bars at the top of the bottom pipe pile are interactively positioned to ensure that the support mechanism 1 is fixed at the center position of the pipe pile, thereby avoiding problems with positioning that may cause prestress concentration and axis deviation, affecting subsequent construction.

[0050] Before use, a hole for installing the support mechanism 1 is opened in advance at the top of the bottom pipe pile. After the bottom pipe pile is installed, the cylindrical base 12 at the bottom end of the support mechanism 1 is installed in the hole opened at the top of the bottom pipe pile. After installation, the outer arc pressure plate 7 is manually pressed downward so that the arc pressure rod 79 on the outer side of the arc pressure plate 7 is interactively positioned with the steel bars distributed in the array at the top of the bottom pile body to determine whether there is an error between the two sides, so as to avoid positioning problems and prevent possible prestress concentration and axis deviation that affect subsequent construction. At the same time, the outer push plate 53 also moves synchronously outward to facilitate the staff to observe whether the position of the inner push plate 5 is correct, so as to avoid adverse effects on the connection of the pipe pile body. After the inspection is completed, the position of the arc pressure plate 7 is reset, and the outer push plate 53 is flipped to the top to prepare for the connection of the pile.

[0051] During the pile connection process, the pipe pile body to be connected is first hoisted to the top of the bottom pipe pile body to be connected, and the bottom of the falling pipe pile body is roughly aligned with the top of the pile body to be connected, and then the top pile body is allowed to fall to the position of the bottom pile body. During the falling process, the bottom of the pile body of the top pipe pile contacts the arc pressure plate 7 and continues to move toward the bottom, driving the arc pressure plate 7 to continue to move toward the bottom; during the movement, the arc pressure plate 7 will drive the transmission rod 71 slidingly connected to its outer side to flip over, and under the support of the support seat 72, the transmission rod 71 will drive the connecting rod 74 inside the limiting groove 73 to move toward the top, so that the connecting rod 74 drives the top connecting frame 75 to move toward the top, so that the lifting platform 76 is driven to the top. When the lifting platform 76 is driven toward the top, it will slide toward the top inside the guide sleeve 21 until the lifting platform 76 moves to the top inside the guide sleeve 21. After that, the movement of the lifting platform 76 toward the top will drive the lifting plate 2 at the top of the guide sleeve 21 to continue to move toward the top. Under the guidance of the support mechanism 1, the lifting plate 2 continues to move toward the top until the top side wall of the lifting plate 2 moves to the top of the support mechanism 1. As the pile body of the top pipe pile continues to move toward the bottom, the arc-shaped pressure plate 7 will continue to drive the transmission rod 71 to flip, so that the end of the transmission rod 71 close to the lifting platform 76 continues to move toward the top, so that the lifting platform 76 drives the lifting plate 2 to push the square frame sleeve 3 toward the top. In the process of moving toward the top, the square frame sleeve 3 pushes the corresponding inner connecting rod 4 to move. Under the constraints of the rotating shaft hole 41 and the ear seat 16, the inner connecting rod 4 is allowed to flip toward the top with the ear seat 16 as the axis. The flipping movement of the inner connecting rod 4 drives the movement of the outer connecting rod 42 hinged thereto. The limit rod 63, which is slidably connected to the elliptical groove 43 on the inner side of the outer connecting rod 42, will move within the limit groove 62, thereby allowing the rectangular moving block 6 to move outward, pushing the outer connecting rod 42, allowing the outer connecting rod 42 to be pushed outward by the flipping of the inner connecting rod 4. The inner push plate 5 is hinged to the outer connecting rod 42, so that during the process of being pushed outward, the inner push plate 5 can continue to move outward synchronously and push the inner side wall of the pipe pile dropped from the top, allowing the pipe pile to be pushed outward synchronously by the multiple inner push plates 5 on the inside, ensuring that it is concentric with the support mechanism 1 and achieves alignment. After completion, concrete can be poured into the interior of the pipe pile at the top to further maintain the stability of the pile body during the connection process.

[0052] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A pile connection device, comprising a support mechanism, characterized in that: The support mechanism includes a fixed platform, the bottom end of the fixed platform is fixedly connected to a cylindrical base, and the top end of the fixed platform is fixedly connected to a fixed cylinder; The outer side of the support mechanism is slidably connected to a lifting plate for preliminary support before pile connection. A square frame sleeve is provided on the outer side of the support mechanism and above the lifting plate. An inner connecting rod is provided above the square frame sleeve. The inner connecting rod is rotatably connected to the outer side of the support mechanism. The end of the inner connecting rod away from the support mechanism is rotatably connected to an inner push plate for positioning the top pipe pile. The inner connecting rod is used to cooperate in the positioning of the inner push plate. The inner side of the inner connecting rod is slidably connected to a rectangular moving block for limiting it. An array of arc-shaped pressure plates are distributed on the outer side of the lifting plate for being pressed downward to the bottom end by the top pipe pile during the pile connection process.

2. A pile connection device according to claim 1, characterized in that: The end of the fixed cylinder away from the cylindrical base is fixedly connected to a top cover, the top of the top cover is provided with a receiving groove, the outer side of the fixed cylinder is arranged with ear seats in an array around, and the inner side of the ear seats is fixedly connected to a positioning shaft.

3. A pile connection device according to claim 2, characterized in that: The bottom end of the lifting plate corresponding to the ear seat is fixedly connected with a plurality of guide sleeves, and one end of the guide sleeve close to the cylindrical base is fixedly connected with a side support column, and the side support column is fixedly connected to the bottom end of the lifting plate.

4. A pile connection device according to claim 2, characterized in that: A plurality of lifting rods are fixedly connected to the outer side of the square frame corresponding to the position of the ear seat. The lifting rods are L-shaped with the long side close to the support mechanism. A sliding groove is provided on the top of the short side of each lifting rod, and a guide rod is fixedly connected to the inside of each sliding groove.

5. A pile connection device according to claim 4, characterized in that: The inner connecting rod is provided with a rotating shaft hole at one end close to the supporting mechanism, and the inner connecting rod is rotatably connected to the outside of the positioning shaft through the rotating shaft hole. The inner connecting rod is rotatably connected to the outer connecting rod at one end away from the rotating shaft hole. An elliptical groove is provided on the inner side of the outer connecting rod, and a connecting hole is provided on the outer side of the end of the outer connecting rod away from the inner connecting rod.

6. A pile connection device according to claim 1, characterized in that: The bottom end of the inner push plate is fixedly connected to the limit shaft, the outer side of the limit shaft is rotatably connected to the shaft sleeve, and the outer side of the shaft sleeve is fixedly connected to the outer push plate.

7. The pile connection device according to claim 5, characterized in that: A matching groove is provided at the outer bottom end of the rectangular moving block corresponding to the position of the guide rod, and a limiting groove is provided at the outer side of the matching groove corresponding to the position of the elliptical groove. The inner side of the limiting groove is slidably connected to the limiting rod, and the two ends of the limiting rod are respectively slidably and limitedly connected in the elliptical groove.

8. The pile connection device according to claim 3, characterized in that: The inner side of the arc-shaped pressure plate is slidably connected to a transmission rod, and the outer side of the transmission rod is rotatably connected to a support seat. A limiting groove is provided on the outer side of one end of the transmission rod away from the arc-shaped pressure plate. The inner side of the limiting groove is slidably connected to a connecting rod, and the outer side of the connecting rod is rotatably connected to a connecting frame. The top of the connecting frame is fixedly connected to a lifting platform, and the lifting platform is slidably sleeved inside the guide sleeve.

9. The pile connection device according to claim 8, characterized in that: The end of the arc-shaped pressure plate away from the supporting mechanism is fixedly connected to a connecting pipe, an insert rod is fixedly installed on the inner side of the connecting pipe, and the end of the insert rod away from the connecting pipe is fixedly connected to the arc-shaped pressure rod.

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